CN104552959B - The rotary double ejecting devices of 3D printer - Google Patents
The rotary double ejecting devices of 3D printer Download PDFInfo
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- CN104552959B CN104552959B CN201510052244.9A CN201510052244A CN104552959B CN 104552959 B CN104552959 B CN 104552959B CN 201510052244 A CN201510052244 A CN 201510052244A CN 104552959 B CN104552959 B CN 104552959B
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- shower nozzle
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Abstract
The invention discloses the rotary double ejecting devices of 3D printer, including the steering motor being arranged in first support and enter a motor；Second support is provided with first, second shower nozzle and corresponding first, second wire feeding gear, and enters first, second coaxially connected follower of a gear with first, second respectively；Second support is spindle rotationally arranged in first support；Tooth sector and steering motor drive connection, are engaged with the arc-shaped rack in second support；Under tooth sector transmission, arc-shaped rack makes second support be swung using the center of circle of arc-shaped rack as the center of circle in first support；Enter a driving wheel and enter a motor drive connection；When second support swings to right side, the first follower engages with entering a driving wheel, and when second support swings to left side, the second follower engages with entering a driving wheel.The present invention effectively improves 3D printer using effective print space during double shower nozzle, reduces influencing each other between shower nozzle, printing precision is higher, and practicality is high, and ease for use is good.
Description
Technical field
The present invention relates to a kind of 3D printer, and in particular to the ejecting device on a kind of 3D printer.
Background technology
When more shower nozzle technologies are used in existing 3D printer, each shower nozzle is then highly consistent by independent motor control
Be fixed together complete 3D printing work side by side, such more ejecting devices are integrated with following defect：
1. shower nozzle is integrally relatively heavy, two dimensions of 3D printing are added（X-axis, Y-axis）Motor load, to a certain degree
On have impact on printing precision；
2. nozzle component is integrally relatively large, the design of highly consistent two shower nozzles fixed side by side so that single
Effective print space of shower nozzle both sides in X-axis is reduced；
3. the dead angle of a segment distance is formd between the shower nozzle and shower nozzle that are fixedly mounted side by side, it is relative to again reduce effectively
Print space；
4. shower nozzle is fixedly mounted side by side with shower nozzle, because the height of each shower nozzle is consistent, one of shower nozzle is moved
During to the position for needing work, the shower nozzle of other inoperatives easily collides the workpiece printed up；One of spray
Head at work, also easily causes the shower nozzle of inoperative to bump against the workpiece not yet solidified come out in work nozzle printing, caused
The error of material, color, or even the deformation of workpiece, while influenceing printing precision, it have impact on the life-span of shower nozzle.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, it is rotatably double that the present invention provides a kind of 3D printer
Ejecting device, effective print space of 3D printer when using double shower nozzle technologies can be effectively lifted, reduces the phase between shower nozzle
Mutually influence, improve printing precision, extend shower nozzle service life, and be readily disassembled, there is very high practicality and ease for use.
Technical scheme：In order to solve the above technical problems, the rotary double ejecting devices of 3D printer provided by the invention, including
First support, second support, steering motor, tooth sector, arc-shaped rack, enter a motor, enter a driving wheel；
The steering motor and enter a motor and be fixedly installed in first support；The second support is provided with the first shower nozzle
With the second shower nozzle, and first, second wire feeding gear corresponding with first, second shower nozzle respectively, and respectively with first, second
Enter first, second coaxially connected follower of a gear；The second support is spindle rotationally arranged in first support；
The tooth sector and the drive connection of steering motor 3, are engaged with the arc-shaped rack being fixedly installed on the secondary support bracket；
The arc-shaped rack is under the transmission of tooth sector so that second support is the center of circle at first using pivot
The arc-shaped rack swung on frame；The pivot overlaps with the center of circle of arc-shaped rack；
It is described to enter a driving wheel and to enter a motor drive connection；First follower is when second support swings to right side
When the first follower for being engaged with entering a driving wheel, second follower is with entering silk master when second support swings to left side
Second follower of driving wheel engagement.
As a preferred embodiment, also it is fixed with Pivot axle in the first support；Arc-shaped gear in the second support
The circle centre position of bar is provided with perforation and outer shroud and the bearing of the inwall interference fit of the perforation；The inner ring of the bearing and rotation
Central shaft is interference fitted.
As another preferred scheme, rotatably double ejecting devices also include locating shaft to the 3D printer, described
Locating shaft is made up of the shaft shoulder, first step, second step and the 3rd step successively；The center of circle of arc-shaped rack in the second support
The bearing that inwall of the place provided with perforation and outer shroud and the perforation is interference fitted；First support is provided with corresponding with the perforation
Mounting hole；The locating shaft is stuck on the outer face of the inner ring of the bearing through the perforation in second support, first step, and the 3rd
Step is threadedly coupled with the mounting hole in first support, second support is spindle rotationally arranged in first by the center of circle of pivot
On support.Under this conceptual design, second support more easily can be installed in first support, or is torn open from first support
Unload down and repaired, changed, nursed.
Preferably, respectively corresponding with first, second wire feeding gear first, second is also fixed with the second support
Auxiliary wheel；First auxiliary wheel reversely rotates and enters a gear formation first with first to enter between silk for that can enter a gear with first
First auxiliary wheel of gap, second auxiliary wheel, which is reversely rotated and enters a gear with second can to enter a thread gear with second, forms the
Two enter second auxiliary wheel in a gap.
Preferably, described first enters a gap and connects to form the first wire feed passage with the nozzle of the first shower nozzle, and described second
Enter a gap to connect to form the second wire feed passage with the nozzle of the second shower nozzle.
Preferably, the first support is provided with a pair of spring jig arm, and rotary double ejecting devices pass through this pair
Spring jig arm is fixedly installed on 3D printer.
Preferably, the center of circle of first follower and the second follower, positioned at using the pivot of second support as circle
On same section of circular arc of the heart.
It is further preferred that the center of circle of first follower, the second follower with entering a driving wheel, positioned at second
The pivot of frame is on the same section of circular arc in the center of circle.
Preferably, the circle for the circular arc that first follower, the second follower are formed by connecting with entering the center of circle of a driving wheel
The heart, overlapped with the center of circle of arc-shaped rack.
Preferably, the second support is to enter into axisymmetric second support, first shower nozzle and the second shower nozzle, first
Silk gear and second to enter a gear, the first follower and the second follower symmetrical with the symmetry axis of second support.At this
Under individual scheme, rotatably double ejecting devices more balance the 3D printer provided, can effectively lift the steady of 3D printing work
Property, further lift printing precision.
Beneficial effect：The rotary double ejecting devices of 3D printer provided by the invention, it is mounted with second of double shower nozzles
Frame is under the driving of steering motor, by engaging for tooth sector and arc-shaped rack, can in first support using pivot as
The center of circle is passively swung in pendulum model, so as to flexibly realize the position switching of double shower nozzles, easily realizes the work of corresponding shower nozzle
Make in place；And when second support swings to side and realizes that the work of corresponding shower nozzle is in place, enter a driving wheel and entering a motor
Under driving, follower corresponding to engaged transmission rotates, further such that turning with the coaxially connected corresponding wire feeding gear of the follower
It is dynamic, the convenient transmission for neatly realizing corresponding shower nozzle wire feed driving, realize the wire feed switching of double shower nozzles.Pass through above-mentioned position
Switching and the combination of wire feed switching, the overall rotary switching for realizing the double shower nozzles of 3D printer of the present invention.
For compared with the prior art, rotatably double ejecting devices have the following advantages that 3D printer provided by the invention：
1. the multiplexing of its pair of shower nozzle it is same enter a motor and steering motor, saved the weight of motor, cost savings it is same
When, reduce the motor load of 3D printer, improve printing precision indirectly；
2., should be in work shower nozzle perpendicular to print job platform, another inoperative spray when the work of a wherein shower nozzle is in place
Head is then relative after rotary switching to be tilted, and inoperative shower nozzle is reduced between shower nozzle relative to higher in work nozzle position
Influence each other, extend shower nozzle service life；Particular avoid inoperative shower nozzle in the prior art bump against it is highly consistent
In the workpiece not yet solidified that work nozzle printing comes out, the serious of deformation of material, the error of color or even workpiece is caused to ask
Topic；
3. the multiplexing of pair shower nozzle it is same enter a motor and steering motor, integral installation is integrally formed on same support, and non-
Work shower nozzle is after rotary switching with respect to the design tilted so that present invention entirety is relative to solid side by side in the prior art
For fixed more shower nozzles and each independent motor combination, delicate structure, occupy little space, and the work of double shower nozzles is with regard to site one
Cause, in the absence of the effective print space of consumption apart from dead angle between shower nozzle and shower nozzle, single shower nozzle the effective of both sides in X-axis beats
Print space is relative to be substantially improved；Generally speaking it is empty to effectively improve effective printing of 3D printer when using double shower nozzle technologies
Between；
4. being readily disassembled, generally speaking there is very high practicality and ease for use.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is the structural representation for being located at line C-C left part after embodiment 1 is split with line C-C in Fig. 1；
Fig. 3 is the structural representation for being located at line C-C right part after embodiment 1 is split with line C-C in Fig. 1；
Fig. 4 is the structural representation of locating shaft in embodiment 1；
Fig. 5 is that the first connection of the line C-C right part in the line C-C left part and Fig. 3 of embodiment 1 in fig. 2 is shown
It is intended to（When first shower nozzle 81 works in place）；
Fig. 6 is that the second connection of the line C-C right part in the line C-C left part and Fig. 3 of embodiment 1 in fig. 2 is shown
It is intended to（When second shower nozzle 91 works in place）.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment 1：As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, rotary double shower nozzles of 3D printer that embodiment 1 provides
Device, including first support 1, second support 2, steering motor 3, tooth sector 5, arc-shaped rack 6, enter a motor 4, enter silk actively
Wheel 7.
As depicted in figs. 1 and 2, the steering motor 3 and enter a motor 4 and be fixedly installed in first support 1；Such as Fig. 3 institutes
To show, the second support 2 is provided with the first shower nozzle 81 and the second shower nozzle 91, and respectively corresponding with first, second shower nozzle
First, the second wire feeding gear（Not shown in figure）, and enter first, second coaxially connected quilt of a gear with first, second respectively
Driving wheel.The second support 2 is to enter a tooth into axisymmetric second support, the shower nozzle 91 of the first shower nozzle 81 and second, first
Wheel and second to enter a gear, the first follower 82 and the second follower 92 symmetrical with the symmetry axis of second support.
As shown in Figure 5 and Figure 6, the second support 2 is spindle rotationally arranged in first support 1.
The tooth sector 5 and the drive connection of steering motor 3, are nibbled with the arc-shaped rack 6 being fixedly installed in second support 2
Close；
The arc-shaped rack 6 is under the transmission of tooth sector 5 so that second support 2 is that the center of circle exists with pivot 10
The arc-shaped rack swung in first support 1；The center of circle of the pivot 10 and arc-shaped rack（That is arc core）Overlap；
It is described to enter a driving wheel 7 and to enter the drive connection of a motor 4；First follower 82 is when second support 2 is swung
To the first follower engaged during right side with entering a driving wheel 7, second follower 92 is when second support 2 swings to left side
When the second follower for being engaged with entering a driving wheel 7.
In the present embodiment 1, as shown in figure 4, also including locating shaft 16, the locating shaft 16 is successively by the shaft shoulder 161, first
Step 162, the step 164 of second step 163 and the 3rd are formed；In the second support circle centre position of arc-shaped rack 6 be provided with perforation,
And the bearing that outer shroud and the inwall of the perforation are interference fitted；First support 1 is provided with mounting hole corresponding with the perforation；
The locating shaft 16 is stuck on the outer face of the inner ring of the bearing through the perforation in second support, first step,
3rd step 164 is threadedly coupled with the mounting hole in first support, makes second support 2 rotatable for the center of circle with pivot 10
It is arranged in first support 1.
First, second auxiliary wheel corresponding with first, second wire feeding gear respectively is also fixed with the second support 2
（Not shown in figure）；First auxiliary wheel is that can enter a gear reverse rotation with first and enter a gear with first to form first
Enter first auxiliary wheel in a gap, second auxiliary wheel is that can enter a gear reverse rotation with second and enter a gear with second
Form the second the second auxiliary wheel for entering a gap.
Described first enters a gap connects to form the first wire feed passage with the nozzle of the first shower nozzle 81, and described second enters between silk
Gap connects to form the second wire feed passage with the nozzle of the second shower nozzle 91.
As shown in Fig. 2 the first support 1 is provided with a pair of spring jig arm, rotary double ejecting devices pass through this
A pair of spring jig arm are fixedly installed on 3D printer.
The center of circle of the follower 92 of first follower 82 and second, positioned at being the center of circle with the pivot 10 of second support
Same section of circular arc on.In the present embodiment 1, enter the center of circle of a driving wheel 7, be similarly positioned on the same section of circular arc.
Embodiment 2：Essentially identical with the structure of embodiment 1, something in common is not repeated, except that：
The second support 2 is spindle rotationally arranged in first support 1 and realized in the following way：
Pivot axle is also fixed with the first support 1；The circle centre position of arc-shaped rack 6 is set in the second support
The bearing that the inwall for having perforation and outer shroud and the perforation is interference fitted；The inner ring of the bearing is matched somebody with somebody with Pivot axle interference
Close.
The center of circle for the circular arc that first follower 82, the second follower 92 are formed by connecting with entering the center of circle of a driving wheel 7
（That is arc core）, the center of circle with arc-shaped rack 6（That is arc core）Overlap.
Embodiment 1 is preferred embodiment, by taking embodiment 1 as an example, the rotary double ejecting devices of this 3D printer it is worked
Cheng Wei：When needing to carry out shower nozzle switching（Exemplified by switching to the first shower nozzle 81 to work in place from the second shower nozzle 91）, turn to electricity
Machine 3 drives tooth sector 5 to be rotated according to corresponding rotation direction, passes through engaging for tooth sector 5 and arc-shaped rack 6, second support 2
It is that the center of circle is passively turned right side oscillation in first support 1 in pendulum model with pivot 10, until as shown in figure 5, the first shower nozzle
81 follow this swing rotary to relevant position to realize that work is in place（Usually the first shower nozzle is perpendicular to print job platform, such as A
Line is perpendicular to print job platform）, the second shower nozzle 91 then leaves original position and follows this swing phase to tilting, i.e., flexible to realize
The position switching of double shower nozzles.
As shown in figure 5, when second support 2 swings to right side and realizes that the work of the first shower nozzle 81 is in place, enter a driving wheel 7
Engaged with the first follower 82, enter a driving wheel 7 in the case where entering the driving of a motor 4, the first follower of engaged transmission 82 rotates, and enters
One step to rotate with the first coaxially connected wire feeding gear of the first follower 82, and convenient first shower nozzle 81 that neatly realizes is sent
The transmission of silk driving force, the wire feed driving switching of double shower nozzles is realized, that is, realize the second shower nozzle 91 and off normal the work of the first shower nozzle 81
Make switching in place.
Conversely, when steering motor 3 drives the rotation of the opposite direction of tooth sector 5, second support 2 will be circle with pivot 10
The heart is passively turned left side oscillation in first support 1 in pendulum model, until as shown in fig. 6, the second shower nozzle 91 follows this swing rotation
Go to relevant position and realize that work is in place（Usually the second shower nozzle is perpendicular to print job platform, if B lines are perpendicular to print job
Platform）, the first shower nozzle 81 then leave original position follow this swing phase to tilt；Simultaneously as shown in fig. 6, working as second support 2
When realizing that the work of the second shower nozzle 91 is in place on the left of swinging to, enter a driving wheel 7 and engaged with the second follower 92, entering a motor
The second follower of engaged transmission 92 rotates under 4 driving, further such that second wire feed coaxially connected with the second follower 92
Pinion rotation, the convenient transmission for neatly realizing the wire feed driving force of the second shower nozzle 91, that is, realize the first shower nozzle 81 and off normal
Two shower nozzles 91 work switching in place.
The combination switched by the switching of above-mentioned position and wire feed, the overall rotation for realizing the double shower nozzles of 3D printer of the present invention
Formula switches.
Above implementation column does not form restriction to the present invention, and relevant staff is in the scope without departing from the technology of the present invention thought
It is interior, carried out it is various change and modifications, all fall within protection scope of the present invention.
Claims (6)
- A kind of 1. rotary double ejecting devices of 3D printer, it is characterised in that：Including first support, second support, steering motor, Tooth sector, arc-shaped rack, enter a motor, enter a driving wheel；The steering motor and enter a motor and be fixedly installed in first support；The second support is provided with the first shower nozzle and the Two shower nozzles, and first, second wire feeding gear corresponding with first, second shower nozzle, and enter silk with first, second respectively respectively First, second coaxially connected follower of gear；The second support is spindle rotationally arranged in first support；The tooth sector and steering motor drive connection, are engaged with the arc-shaped rack being fixedly installed on the secondary support bracket；It is described Arc-shaped rack is under the transmission of tooth sector so that the arc that second support is swung using pivot as the center of circle in first support Shape rack；The pivot overlaps with the center of circle of arc-shaped rack；It is described to enter a driving wheel and to enter a motor drive connection；First follower be when second support swing to right side when with Enter first follower of driving wheel engagement, second follower is with entering a driving wheel when second support swings to left side Second follower of engagement；First, second auxiliary wheel corresponding with first, second wire feeding gear respectively is also fixed with the second support；It is described First auxiliary wheel, which is reversely rotated and enters a gear with first and form first can to enter a thread gear with first, enters the first auxiliary of a gap Wheel is helped, second auxiliary wheel is that can enter a gear reverse rotation with second and enter a gear formation second with second to enter a gap The second auxiliary wheel；Pivot axle is also fixed with the first support；The circle centre position of arc-shaped rack is provided with and worn in the second support The bearing that hole and outer shroud and the inwall of the perforation are interference fitted；The inner ring of the bearing is interference fitted with Pivot axle；Also include locating shaft, the locating shaft is made up of the shaft shoulder, first step, second step and the 3rd step successively；Described The circle centre position of arc-shaped rack is provided with perforation and outer shroud and the bearing of the inwall interference fit of the perforation on two supports；First Frame is provided with mounting hole corresponding with the perforation；The locating shaft is stuck on the outer face of the inner ring of the bearing through the perforation in second support, first step, the 3rd Rank is threadedly coupled with the mounting hole in first support, second support is spindle rotationally arranged in first by the center of circle of pivot On frame；The center of circle for the circular arc that first follower, the second follower are formed by connecting with entering the center of circle of a driving wheel, with arc-shaped gear The center of circle of bar overlaps.
- 2. the rotary double ejecting devices of 3D printer according to claim 1, it is characterised in that：Described first enters a gap Connect to form the first wire feed passage with the nozzle of the first shower nozzle, described second enters a gap connects to be formed with the nozzle of the second shower nozzle Second wire feed passage.
- 3. the rotary double ejecting devices of 3D printer according to claim 1, it is characterised in that：Set in the first support There are a pair of spring jig arm, rotary double ejecting devices are fixedly installed on 3D printer by this pair of spring clip arms.
- 4. the rotary double ejecting devices of 3D printer according to claim 1, it is characterised in that：First follower with The center of circle of second follower, on the same section of circular arc using the pivot of second support as the center of circle.
- 5. the rotary double ejecting devices of 3D printer according to claim 1, it is characterised in that：First follower, Second follower and the center of circle for entering a driving wheel, on the same section of circular arc using the pivot of second support as the center of circle.
- 6. the rotary double ejecting devices of 3D printer according to claim 1, it is characterised in that：The second support be into Axisymmetric second support, first shower nozzle and the second shower nozzle, first enter a gear and second and enter a gear, the first follower It is symmetrical with the symmetry axis of second support with the second follower.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510052244.9A CN104552959B (en) | 2015-01-30 | 2015-01-30 | The rotary double ejecting devices of 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052244.9A CN104552959B (en) | 2015-01-30 | 2015-01-30 | The rotary double ejecting devices of 3D printer |
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| CN104552959A CN104552959A (en) | 2015-04-29 |
| CN104552959B true CN104552959B (en) | 2017-11-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN106142566B (en) * | 2016-07-29 | 2018-04-13 | 华南理工大学 | A kind of rotatable switching 3D printing nozzle |
| CN106042399B (en) * | 2016-07-29 | 2018-05-15 | 华南理工大学 | A kind of 3D printing nozzle that can switch up and down |
| CN107351391B (en) * | 2017-08-12 | 2018-11-02 | 安徽硕创电气科技发展有限公司阜南分公司 | A kind of high-precision multiaxial type 3D printer |
| TWI615267B (en) * | 2017-09-20 | 2018-02-21 | 東友科技股份有限公司 | Dual printhead assembly and 3d printing apparatus using the same |
| CN110712364A (en) * | 2018-07-11 | 2020-01-21 | 严铜 | Many shower nozzles 3D printer |
| CN109895381B (en) * | 2019-03-25 | 2019-10-25 | 中科院广州电子技术有限公司 | A kind of switching feeding mechanism of dual channel print head |
| CN113478606A (en) * | 2021-06-18 | 2021-10-08 | 上海建工建材科技集团股份有限公司 | 3D printing double-nozzle device with clay as supporting material and using method |
| CN116638764B (en) * | 2023-06-07 | 2024-02-09 | 深圳诚一信科技有限公司 | Automatic transfer carrying tray of 3D printing rapid prototyping machine |
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