The adjustable 3D printer shower nozzle of bore
Technical field
The present invention relates to a kind of 3D printer, more particularly to a kind of 3D printer of adjust automatically shower nozzle caliber size.
Background technology
Existing 3D printer carries out the printing of object module, the shape of various object modules using single spraying head working method
The difference of shape and size, because the cross sectional shape fixation of single spraying head can not be adjusted, it is impossible to according to the shape of object module
Or size carries out accommodation;For example, during printing flat sheet, printing can be significantly improved by the bore for increasing shower nozzle
Efficiency, the melting consumable quantity that existing fixed bore shower nozzle sprays is relatively fewer, such as can be notable according to the shower nozzle of larger caliber
The reduction time-write interval;When printing delicate part or size small parts, the bore of shower nozzle crosses conference and has a strong impact on target mould
The precision of type, can only use the less shower nozzle of sectional dimension.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide it is a kind of can be according to the shape and chi of object module
The 3D printer of little progress row shower nozzle sectional dimension adjustment, while improving printing effect, shorten the time-write interval, it can also be ensured that 3D
The printing precision of printer.
To realize above-mentioned technical purpose, the technical solution adopted in the present invention is as follows.
The adjustable 3D printer shower nozzle of bore, it includes being provided with melting mechanism, power supply dress on supporter, supporter
Put, nozzle component, melting mechanism is used to pour into the consumptive material of molten condition, power supply device and nozzle component into nozzle component
Between be additionally provided with toggle mechanism, the clutch end of power supply device and the power intake of toggle mechanism are connected, and are stirred
The clutch end of mechanism is connected with nozzle component and can adjust the material spray end section shape or size of nozzle component.
Wherein, nozzle component includes being provided with the poly- material for assembling molten condition consumptive material in head body, head body
Chamber, above-mentioned melting mechanism can inject the consumptive material of molten condition into poly- material chamber;Nozzle component is also slided respectively including two
The dynamic slide plate for being arranged at head body side, two slide plates be arranged to flex outward relative to head body center line and
Narrowed relative to shower nozzle center line to center, the clutch end of toggle mechanism is connected to slide plate, and provides slide plate in stretch-like
The power switched between state and contraction state;, can when two slide plates are switched between extended configuration and contraction state
Adjust the material spray end section shape or size of head body.
The further improvement of above-mentioned technical proposal.
Two above-mentioned slide plates are symmetricly set in head body side, and two slide plates are same relative to head body center line
Step is flexed outward and narrowed relative to shower nozzle center line locking to center.
The further improvement of above-mentioned technical proposal.
Slide plate includes horizontal segment, the vertical section being connected with each other, and the opening direction constituted between horizontal segment and vertical section deviates
In the center line of head body, the vertical section of two slide plates constitutes spray towards the interval between the end face of the center line of head body
The consumptive material of molten condition is injected into by material mouth, the horizontal segment of two slide plates and the inwall sliding contact of head body, melting mechanism
Extruded in poly- material chamber and by spray material port.
The further improvement of above-mentioned technical proposal.
Slide plate also includes tilting linkage section, tilts linkage section and is arranged between horizontal segment, vertical section and for connecting water
Flat section, vertical section, two slide plates tilt linkage section towards the interval between the end face of the center line of head body, head body
Enclosed between inwall with spray material port connect remittance material chamber, melting mechanism by the consumptive material of molten condition be injected into remittance material intracavitary and by
Spray material port is extruded.
The further improvement of above-mentioned technical proposal.
The vertical section of slide plate towards on the side of head body center line offer in vertical direction arrange draw material it is recessed
Groove.
The further improvement of above-mentioned technical proposal.
When two slide plates are in contraction state, the material groove that draws being arranged in two slide plate vertical sections encloses a section
For circular spray material port.
The further improvement of above-mentioned technical proposal.
The increase of interval in the vertical direction from bottom to top progressively between the tilting section of two slide plates, and set on tilting section
It is equipped with to extend along direction and be provided with and draws material groove.
The further improvement of above-mentioned technical proposal.
It is additionally provided with and is connected and with poly- material chamber for injecting molten consumptive material into poly- material chamber in head body
Linkage section, linkage section is connected to the exhaust end of melting mechanism;Above-mentioned linkage section and head body coaxial line arrangement, head body
Cone tank is provided with the junction of linkage section exhaust end, in the lateral separation receipts progressively of vertical direction cone tank from bottom to top
It is narrow.
The further improvement of above-mentioned technical proposal.
The both sides of head body are respectively arranged with the open slot that one and poly- material chamber are connected, and two open slots on
Head body center line is arranged symmetrically, and is respectively arranged at the slide plate and open slot shiding matching, two slide plates of head body side
It can be flexed outward in open slot in sliding process relative to head body center line and relative to shower nozzle center line to center
Narrow.
The further improvement of above-mentioned technical proposal.
It is provided with and is matched with slide plate and for being oriented to the guide groove that slide plate enters line slip in the horizontal direction, slide plate in open slot
On be provided with the guide pad matched with guide groove.
The further improvement of above-mentioned technical proposal.
Above-mentioned guide groove is shaped as right-angled trapezium, the right-angled trapezium that be shaped as and the guide groove of guide pad match, slide plate
Upper surface and open slot upper inwall shiding matching, and right-angled trapezium height side in horizontally disposed and for being oriented to slide plate
Motion in the horizontal direction.
The further improvement of above-mentioned technical proposal.
It is also equipped with being additionally provided with the chute matched with pin on the pin positioned at open slot, slide plate in head body,
When slide plate is flexed outward relative to head body center line, and guide groove with guide pad with departing from when, pin is matched with chute,
And pin with the bottom land of chute when contacting, slide plate can be constrained and continue to flex outward.
The further improvement of above-mentioned technical proposal.
Above-mentioned toggle mechanism include being installed on supporter and can around own axis plectrum, the two ends of plectrum point
It is not hinged with a driving lever, the other end of two driving levers is hingedly connected to be installed on supporter and can be around own axis
One end of prerotation vane, plectrum, prerotation vane, two driving levers constitute quadric chain, and two driving levers are parallel to each other;Plectrum is connected to
The clutch end of power supply device, prerotation vane is socketed on the outside of head body, and power supply device is provided to plectrum
Power is used to drive plectrum that beat occurs along clockwise direction and in the counterclockwise direction, and plectrum can apply to slide plate promotes slide plate
The active force for flexing outward or being narrowed to center.
The further improvement of above-mentioned technical proposal.
The side that slide plate deviates head body center line is provided with the reversed column arranged in vertical direction, the both sides point of prerotation vane
The circular arc guide groove matched with reversed column is not provided with, and a pair of circular arc guide grooves can promote guiding of a pair of slide plates along open slot
Move in the synchronous direction towards head body center line or deviation head body center line in direction.
The further improvement of above-mentioned technical proposal.
The melt flow passage melted for consumptive material is provided with above-mentioned melting mechanism, the feed end of melt flow passage is provided with use
In the sleeve of the conveying into melt channel, the exhaust end of melt channel and the linkage section connection for being arranged at head body, and
The heating element heater of heat energy needed for for providing fusing to the consumptive material in melt flow passage is additionally provided with melting mechanism.
Brief description of the drawings
In order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in embodiment will be done simply below
Introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill people
For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the invention.
Fig. 2 is structural representation of the invention.
Fig. 3 is the structural representation of melting mechanism.
The structural representation that Fig. 4 is power supply device, nozzle component, toggle mechanism match.
Fig. 5 is the structural representation that toggle mechanism matches with supporter.
Fig. 6 is the structural representation of supporter.
Fig. 7 is the structural representation of supporter.
Fig. 8 is the structural representation that toggle mechanism matches with supporter, nozzle component.
Fig. 9 is the structural representation of toggle mechanism.
Figure 10 is the structural representation of toggle mechanism.
Figure 11 is the structural representation that nozzle component is in maximum open state.
Figure 12 is the structural representation that nozzle component is in middle opening state.
Figure 13 is the structural representation that nozzle component is in minimal openings state.
Figure 14 is the structural representation of head body.
Figure 15 is the structural representation of slide plate.
It is denoted as in figure:
10th, mechanism is melted;110th, heating element heater;120th, relief hole;
20th, sleeve;
30th, power supply device;
40th, nozzle component;410th, head body;410a, linkage section;410b, poly- material chamber;410c, spray material port;410d, guide groove;
420th, slide plate;420a, draw material groove;420b, reversed column;420c, guide pad;420d, chute;430th, pin;
50th, toggle mechanism;510th, plectrum;520th, driving lever;530th, prerotation vane;530a, crossover port;530b, guide groove;
60th, supporter;610th, annular groove a;620th, annular groove b;630th, groove;640th, centre bore;650th, locating notch;660th, it is oriented to and lacks
Mouthful.
Embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, those of ordinary skill in the art are not under the premise of creative work is made, the every other reality obtained
Example is applied, the scope of the present invention is belonged to.
Referring to accompanying drawing 1-4, the adjustable 3D printer shower nozzle of bore, it includes being provided with supporter 60, supporter 60 molten
Melt mechanism 10, power supply device 30, nozzle component 40, melting mechanism 10 is used to pour into molten condition into nozzle component 40
Consumptive material, is additionally provided with toggle mechanism 50, power supply device 30 is with stirring machine between power supply device 30 and nozzle component 40
The power intake connection of structure 50, the clutch end of toggle mechanism 50 is connected with nozzle component 40 and can adjust nozzle component
40 material spray end section shape or size;The power provided in the present invention by power supply device 30 realizes nozzle component 40
Material spray end section shape or size adjust automatically, so as to adapt to the printing needs of different target model, improve the effect of printing
Rate, shortens the time of printing.
Above-mentioned nozzle component 40, it includes head body 410, and head body 410 is fixedly installed on supporter 60, shower nozzle
The poly- material chamber 410b for assembling molten condition consumptive material is provided with body 410, above-mentioned melting mechanism 10 can be to poly- material chamber
The consumptive material of injection molten condition in the 410b of room;Nozzle component 40 also includes the slide plate for being slideably positioned in the side of head body 410
420, slide plate 420 be arranged to flex outward relative to the center line of head body 410 and relative to the center line of shower nozzle 410 to
Center is narrowed, and the clutch end of toggle mechanism 50 is connected to slide plate 420, and provides slide plate 420 in extended configuration and contraction-like
The power switched between state;When slide plate 420 is switched between extended configuration and contraction state, head body can adjust
410 material spray end section shape or size.This kind of scheme use for single slide sheet type structure(It is not shown in the drawings specific
Structure), using this kind of structure, slide plate 420 during being subjected to displacement, will cause head body 410 nozzle end center it is inclined
From to offset the error of center deviation, it is necessary to which the control system adjustment 3D printer shower nozzle of 3D printer carries out corresponding deviate simultaneously
The error is offset, certainly in the case where object module required precision is not high, food model can be for example carried out without adjustment
Printing, is simply ignored the error.
Referring to accompanying drawing 11-15, above-mentioned slide plate 420 is two and is slideably positioned in the side of head body 410, two respectively
Individual slide plate 420 is arranged to flex outward relative to the center line of head body 410 and relative to the center line of shower nozzle 410 in
The heart is narrowed;The clutch end of toggle mechanism 50 is connected to two slide plates 420, and provide two slide plates 420 in extended configuration and
The power switched between contraction state;It is adjustable when two slide plates 420 are switched between extended configuration and contraction state
The material spray end section shape or size of whole head body 410.
More perfectly, two above-mentioned slide plates 420 are symmetricly set in the side of head body 410, and two phases of slide plate 420
Flex outward and narrowed relative to the center line locking of shower nozzle 410 to center for the center line locking of head body 410.This kind of side
Case use for double slide sheet type structures, the advantage is that, two slide plates are synchronously being flexed outward and synchronous narrowed to center
During, it is always ensured that the nozzle end center of head body 410 is constant, it is not necessary to which control system adjusts 3D printer shower nozzle
Error concealment is carried out, the printing of high-precision object module is particularly suitable for use in.When the nozzle end constituted between two slide plates at intervals of
During the three times in conventional injection head section, using the structure of the present invention, the efficiency of three times can be improved, and only need to consumption 1/3rd
Time-write interval, overcoming current 3D printer, time-consuming, the problem of difficulty is readily accepted by customers.
Referring to accompanying drawing 11-15, the both sides of head body 410 are respectively arranged with an opening connected with poly- material chamber 410b
Groove, and two open slots are arranged symmetrically on the center line of head body 410, are respectively arranged at the cunning of the side of head body 410
Piece 420 and open slot shiding matching, two slide plates 420 can be relative to the center of head body 410 in sliding process in open slot
Line is flexed outward and narrowed relative to the center line of shower nozzle 410 to center;It is provided with open slot and matches and use with slide plate 420
Enter in the horizontal direction in guiding slide plate 420 and be provided with and leading that guide groove 410d matches on the guide groove 410d of line slip, slide plate 420
To block 420c.
More perfectly, referring to accompanying drawing 14,15, above-mentioned guide groove 410d's is shaped as right-angled trapezium, guide pad 420c's
It is shaped as the right-angled trapezium matched with guide groove 410d, the upper surface of slide plate and the upper inwall shiding matching of open slot, and right angle
Trapezoidal height side is in horizontally disposed and for being oriented to the motion of slide plate 420 in the horizontal direction.
More perfectly, referring to accompanying drawing 14,15, the pin 430 positioned at open slot is also equipped with head body 410, it is sliding
The chute 420d matched with pin 430 is additionally provided with piece 420, when slide plate 420 is outside relative to the center line of head body 410
Stretch, and when guide groove 410d and guide pad 420c and disengaging, pin 430 is matched with chute 420d, and pin 430 and chute
During 420d bottom land contact, slide plate 420 can be constrained and continue to flex outward.
Referring to accompanying drawing 11-15, slide plate 420 includes horizontal segment, vertical section, tilts linkage section, tilts linkage section and is arranged at water
Between flat section, vertical section and for connecting horizontal segment, vertical section, the opening direction constituted between horizontal segment and vertical section deviates
In the center line of head body 410, the vertical section of two slide plates 420 is towards between the end face of the center line of head body 410
Interval constitutes spray material port 410c, and the inclination linkage section of two slide plates 420 is towards between the end face of the center line of head body 410
The remittance material chamber connected with spray material port 410c is enclosed between interval, the inwall of head body 410, mechanism 10 is melted by molten condition
Consumptive material is injected into remittance material intracavitary and extruded by spray material port 410c;When two slide plates 420 are outwards stretched, spray material port 410c mouth
The increase of footpath progressively;When two slide plates 420 are to 410 central reduction of head body, the diminution of spray material port 410c bore progressively.
More perfectly, when two slide plates 420 are in contraction state, the vertical sections of two slide plates 420 is towards head body
The side of 410 center lines is brought into close contact, and causes spray material port 410c to be in closure state, and remittance material chamber constitutes closed space;
Its purpose to be realized and advantage are that existing 3D printer shower nozzle when being moved by a relatively large margin, 3D printer
Shower nozzle has molten consumptive material and oozed out, so wire drawing phenomenon occurs, its chief reason or shower nozzle can not be sealed effectively
It is stifled;The enclosed construction used in the present invention, can effectively carry out the closure of 3D printer shower nozzle, will not produce wire drawing and show
As.
More specifically, referring to accompanying drawing 11-15, the vertical section of slide plate 420 is towards on the side of the center line of head body 410
Offer and draw material groove in what vertical direction was arranged;Preferably, when two slide plates 420 are in contraction state, two are arranged at
The material groove that draws in the vertical section of slide plate 420 encloses spray material port 410c of the section for circle;Its purpose to be realized with
And advantage is, two sections for drawing material groove composition are that circular spray material port 410c is minimum size, and it is adapted to height
The printing of the object module of precision, overcomes spray material port 410c oversized, it is impossible to adapt to the problem of high-precision object is printed.
More perfectly, referring to accompanying drawing 11-13, the interval in the vertical direction between the tilting section of two slide plates 420 is certainly
It is lower and on increase progressively, and be provided with to extend along direction and be provided with tilting section and draw material groove 420;It is intended that sharp
It is easy to poly- material with the infundibulate chamber that composition is spaced between two tilting sections, when spray material port 410c is stretching larger space, leakage
Bucket shape chamber can further ensure that molten consumptive material is filled up completely with spray material port 410c, can avoiding producing bubble or tomography.
More specifically, referring to accompanying drawing 11-14, be additionally provided with head body 410 connected with poly- material chamber 410b and
Linkage section 410a for injecting from molten consumptive material to poly- material chamber 410b, linkage section 410a are connected to the row of melting mechanism 10
Expect end.
More preferably, above-mentioned linkage section 410a is arranged with the coaxial line of head body 410, head body 410 and linkage section
The junction of 410a exhaust ends be provided with cone tank, vertical direction from bottom to top cone tank lateral separation progressively narrow;Its
Purpose is that the interval that in the vertical direction is incrementally increased from bottom to top between cone tank and the tilting section of two slide plates is relative
Should, in order to preferably carry out the filling of molten consumptive material to the spray material port 410c under extended configuration, it is to avoid produce dead angle.
Referring to accompanying drawing 8-10, above-mentioned toggle mechanism 50 includes being installed on supporter 60 and can be around own axis
Plectrum 510, the two ends of plectrum 510 have been respectively articulated with a driving lever 520, and the other end of two driving levers 520 is hingedly connected to install
In supporter 60 and can be around one end of the prerotation vane 530 of own axis, plectrum 510, prerotation vane 530, two driving levers 520
Quadric chain is constituted, and two driving levers 520 are parallel to each other;Plectrum 510 is connected to the clutch end of power supply device 30,
Prerotation vane 530 is socketed on the outside of head body 410, and the power that power supply device 30 is provided to plectrum 510 is used to drive to dial
Beat occurs along clockwise direction and in the counterclockwise direction for piece 510;More preferably, the center of head body 410 be provided with
The crossover port 530a that the outer wall of head body 410 matches.When power supply device 30 driving plectrum 510 occur it is clockwise or inverse
During hour hands beat, the transmission of action edge is entered by two driving levers 520, the synchronous beat of prerotation vane 530 can be achieved.
Referring to accompanying drawing 8-13, the side that slide plate 420 deviates the center line of head body 410 is provided with what is arranged in vertical direction
The circular arc guide groove 530b matched with reversed column 420b, and guide groove 530b and reversed column are provided with reversed column 420b, prerotation vane 530
420b matching can promote guide direction of the slide plate 420 along open slot towards the center line of head body 410 or deviate shower nozzle sheet
The direction motion of the center line of body 410.
More optimally, the both sides of prerotation vane 530 are respectively arranged with the circular arc guide groove 530b matched with reversed column 420b,
And a pair of circular arc guide groove 530b can promote guide direction of a pair of slide plates 420 along open slot it is synchronous towards head body 410
Move in the direction of center line or the deviation center line of head body 410.When prerotation vane 530 occurs clockwise around own axes
Or when deflecting counterclockwise, utilize the work that offer is provided for the circular arc guide groove 530b and reversed column 420b for being arranged at prerotation vane 530
Firmly, being sprayed towards the center line of head body 410 or deviation for guide direction synchronization of a pair of slide plates 420 along open slot can be achieved
The direction of the head center line of body 410 is moved, so as to realize that spray material port 410c opening size changes.
The melt flow passage melted for consumptive material is provided with above-mentioned melting mechanism 10, the feed end of melt flow passage is provided with
For the sleeve 20 of the conveying into melt channel, the exhaust end of melt channel and the linkage section for being arranged at head body 410
410a is connected, and melts the heating that heat energy needed for for providing fusing to the consumptive material in melt flow passage is additionally provided with mechanism 10
Element 110.More preferably, it is provided with the sheet radiating piece for cooling on sleeve 20, its purpose is in order to reduce in sleeve 20
The temperature of consumptive material, it is to avoid the consumptive material in sleeve 20 occurs fusing or softened.
Referring to accompanying drawing 4-8, the annular groove a610 for installing plectrum 510, supporter 60 are provided with above-mentioned supporter 60
On be additionally provided with annular groove b620 for installing prerotation vane 530, annular groove a610 is conllinear with the pivot of plectrum 510, annular groove
B620 is conllinear with the pivot of prerotation vane 530, and the clutch end of above-mentioned power supply device 30 is connected to plectrum 510
Center and conllinear with the pivot of plectrum 510.
Participate in and connection annular groove a610 inner chambers, annular groove b620 inner chambers are additionally provided with accompanying drawing 5,6, supporter 60 and is used for driving lever
520 grooves 630 passed through.
Participate in accompanying drawing 6,7, annular groove b620 center be provided with passed through for linkage section 410a and with head body 410
Be additionally provided with the centre bore 640 that outer wall matches, annular groove b620 respectively be located at the both sides of centre bore 640 and with centre bore 640
The locating notch 650 of connection, radial distribution and two locating notch 650 centers of two locating notches 650 along centre bore 640
The line of line and the line at annular groove a610 centers, annular groove b620 centers are perpendicular, are additionally provided with annular groove b620 positioned at centre bore
640 both sides and positioned at the guiding breach 660 in the outside of locating notch 650, be oriented to breach 660 connected with locating notch 650 and
It is oriented in the center line of breach 660 and the centerline collineation of locating notch 650, head body 410 and is provided with and locating notch 650
The protruding block matched, slide plate 420 matches with being oriented to breach 660 and along being oriented to the guide direction of breach 660 along centre bore
640 radial motion.The cooperation of head body 410 and a pair of locating notches 650, constrains position and the spray of head body 410
Rotation around own axes can not occur for head body 410, and the motion state of slide plate 420 can further be stablized by being oriented to breach 660.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention;
A variety of modifications to these embodiments will be apparent for those skilled in the art, defined in the present invention
General Principle can not depart from the present invention spirit or scope in the case of, realize in other embodiments.Therefore, originally
Invention will not be defined to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty
Consistent most wide scope.