CN107521102A - The polymorphic extrusion method of 3D printer - Google Patents
The polymorphic extrusion method of 3D printer Download PDFInfo
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- CN107521102A CN107521102A CN201710797714.3A CN201710797714A CN107521102A CN 107521102 A CN107521102 A CN 107521102A CN 201710797714 A CN201710797714 A CN 201710797714A CN 107521102 A CN107521102 A CN 107521102A
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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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Abstract
The invention discloses the polymorphic extrusion method of 3D printer, its method includes：Center flow channels at valve core center receive solid feed or molten state raw material, when center flow channels receive for solid feed when, to center flow channels transferring heat energy and can realize that the solid feed being located in center flow channels melt by the thermal source that is arranged at outside valve core；When valve core is vertically moving and realizes that first flow is connected with bias flow channel, the molten state raw material that can be achieved in center flow channels is flowed into bias flow channel by first flow, and by the exhaust end extrusion molding of bias flow channel；When valve core is vertically moving and realizes that first flow, second flow channel are connected by annular groove, the molten state raw material in center flow channels can be achieved by first flow, annular groove, second flow channel and by extrusion channel extrusion molding.
Description
Technical field
The present invention relates to 3D printer technology.
Background technology
3D printing brings worldwide manufacturing industry revolution, be in the past part design place one's entire reliance upon production technology can be real
It is existing, and the appearance of 3D printer, it will this production thinking is overturned, this causes enterprise not consider further that life when part is produced
Production. art problem, the design of any complicated shape can be realized by 3D printer；3D printing is without machining or mould
Tool, the object of any shape can be just generated directly from computer graphics data, so as to highly shortened the production of product week
Phase, improve productivity ratio.Although being still left to be desired, 3D printing technique market potential is huge, certainly will turn into following manufacturing
One of numerous break-through skills.
For current 3D printing technique, the extrusion mechanism form of 3D printer is single, can only realize a kind of state
Printing, switching can not be effectively realized for different characteristic printing, and constrain the key of printing effect.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide a kind of 3D printing of achievable variform switching
Machine extrusion mechanism, and can significantly improve the efficiency of 3D printing.
To realize above-mentioned technical purpose, the technical solution adopted in the present invention is as follows.
Polymorphic 3D printer extrusion mechanism, it includes supporter, the form switching mechanism for being installed on supporter bottom, peace
Switching actuating unit loaded on supporter, form switching mechanism are arranged to extrude at center between state, biasing extrusion state
Switching, described switching actuating unit are used for the power that state switching is provided to form switching mechanism；
Form switching mechanism includes the valve core that can be moved in vertical direction, and the lower end discharge end of valve core is provided with melt flow road
Component, the bottom of valve core are socketed with the valve pocket positioned at melt flow road component external, and described molten flow channel component includes first-class
Road, second flow channel, extrusion channel, first flow, second flow channel are along valve core radial arrangement, and extrusion channel is along valve core central shaft
Line direction arranges, be additionally provided with valve core for separate first flow, second flow channel dividing plate, first flow is located on dividing plate
End, second flow channel are located at the bottom of dividing plate, wherein, it is provided with along the center of its center axis direction arrangement and flows on valve core
Road, the pan feeding end of center flow channels can receive solid feed or molten state raw material, and the discharge end of center flow channels connects first
Runner, extrusion channel is located at the bottom of second flow channel and extrusion channel is connected with second flow channel, and both ends are provided with valve pocket
To guide groove that is logical and matching with valve element shape, be additionally provided with valve pocket with guide groove coaxial line arrangement and diameter it is big
In the annular groove of guide groove diameter, first flow can be connected by annular groove and second flow channel and realize the original of the molten state in center flow channels
Material is by first flow, annular groove, second flow channel and by extrusion channel extrusion molding；
Bias flow channel is provided with above-mentioned valve pocket, the pan feeding port of described bias flow channel is communicated in guide groove inner chamber, biasing
The exhaust end of runner is located at the bottom of valve pocket and identical with the pointing direction of extrusion channel, when valve core is vertically moving
And when realizing that the feeding end of first flow and bias flow channel is connected, the molten state raw material in center flow channels can be achieved by first-class
Road is flowed into bias flow channel, and by the exhaust end extrusion molding of bias flow channel；
Wherein, when first flow is connected by annular groove and second flow channel, on valve core positioned at second flow channel lower end wall portion with
The guide groove inwall of valve pocket is brought into close contact, and realizes that annular groove completely cuts off with guide groove lower ending opening.
The further improvement of such scheme.
Above-mentioned bias flow channel includes the first bias flow channel, the second bias flow channel, and the feeding end of the first bias flow channel
Position is higher than the pan feeding end position of the second bias flow channel, wherein, the first bias flow channel, the exhaust end of the second bias flow channel are placed in
The side of valve pocket.
The further improvement of such scheme.
Above-mentioned form switching mechanism also includes being sheathed on outside valve pocket and in the outer sleeve body of fixed setting, described is outer
Body is used to valve pocket be fixed.
The further improvement of such scheme.
Supporter includes supportive body, offered on supportive body match with outer sleeve body and connecting hole, it is described
Outer sleeve body with supportive body in being fixedly connected, wherein with connecting hole coaxial line arrange and be arranged in connecting hole, above-mentioned by valve core
Switching actuating unit be installed on supportive body, and valve core is connected to the switching power output part of switching actuating unit, cuts
The force mechanisms that move also include receiving power and moved to the switching power reception part of switching power output part passing power, switching
Power can be transferred to valve core and realize the motion of valve core vertically by power output block.
The further improvement of such scheme.
Above-mentioned valve core include be arranged concentrically and set gradually according to the flow direction of raw material thread segment, guide section,
Extruding zone, above-mentioned first flow, second flow channel, extrusion channel may be contained within extruding zone, and extruding zone is with being arranged at valve pocket
Guide groove matches and slided along the axis direction of guide groove, and it is uniform along its circumferencial direction that the wall portion of guide section is provided with several
The guide plate for being spaced apart and being arranged along valve element body axis direction, above-mentioned switching power output part are spur gear and cut
Change and through hole is additionally provided with the center of power output part, and the inwall of the through hole is provided with the interior spiral shell to match with thread segment
Line, the position of above-mentioned switching power output part are fixed and can be provided with and set on own axis, above-mentioned valve pocket
It is placed in the guide groove that the guide plate of guide section wall portion matches and moved for guide valve core body in vertical direction.
The further improvement of such scheme.
Above-mentioned valve core include be arranged concentrically and set gradually according to the flow direction of raw material thread segment, guide section,
Extruding zone, above-mentioned first flow, second flow channel, extrusion channel may be contained within extruding zone, and extruding zone is with being arranged at valve pocket
Guide groove matches and slided along the axis direction of guide groove, and it is uniform along its circumferencial direction that the wall portion of guide section is provided with several
The guide plate for being spaced apart and being arranged along valve element body axis direction, above-mentioned switching power output part are spur gear and cut
Change and through hole is additionally provided with the center of power output part, and the inwall of the through hole is provided with the interior spiral shell to match with thread segment
Line, the position of above-mentioned switching power output part are fixed and can set on own axis, above-mentioned valve pocket/outer sleeve body
There is and is arranged at the guide groove that the guide plate of guide section wall portion matches and moved for guide valve core body in vertical direction.
The further improvement of such scheme.
Above-mentioned switching actuating unit includes switching power supply mechanism, is installed on switching power supply mechanism output shaft end
And the switching power reception part of switching power supply mechanism revolving force can be received, switching actuating unit also includes being arranged at cutting
Intermediate transmission part between the power that moves receiving part, switching power output part and for transmitting revolving force, switches power
Receiving part receives switching power supply mechanism revolving force and revolved via intermediate transmission part to switching power output part transmission
Turn power.
The polymorphic extrusion method of 3D printer, its method include：
S1：Center flow channels at valve core center receive solid feed or molten state raw material, and what it is when center flow channels reception is solid
During state raw material, it can be located at by the thermal source being arranged at outside valve core to center flow channels transferring heat energy and realization in center flow channels
Solid feed melts；
S2：Because the lower end discharge end of valve core is provided with molten flow channel component, the bottom of valve core is socketed with positioned at melt flow
The valve pocket of road component external, described molten flow channel component include first flow, second flow channel, extrusion channel, first flow, second
Runner is arranged along valve core radial arrangement, extrusion channel along valve core central axial direction, is additionally provided with valve core for dividing
Every first flow, the dividing plate of second flow channel, first flow is located at dividing plate upper end, and second flow channel is located at the bottom of dividing plate, in
The discharge end of heart runner connects first flow, and extrusion channel is located at the bottom of second flow channel and extrusion channel and second
Road is connected, and both ends are provided with valve pocket to guide groove that is logical and matching with valve element shape, is additionally provided with and is led in valve pocket
To groove coaxial line arrangement and diameter is more than the annular groove of guide groove diameter, and first flow can pass through annular groove and second flow channel is connected；
Bias flow channel is provided with above-mentioned valve pocket, the pan feeding port of described bias flow channel is communicated in guide groove inner chamber, bias flow channel
Exhaust end be located at the bottom of valve pocket and identical with the pointing direction of extrusion channel；Wherein, valve core is connected to switching power
The switching power output part of mechanism, switching actuating unit also include receive power and to switching power output part passing power
Switching power reception part, switching power output part power can be transferred to valve core and realize valve core vertically
Motion；
When valve core is vertically moving and realizes that first flow is connected with bias flow channel, can be achieved molten in center flow channels
Melt state raw material to flow into bias flow channel by first flow, and by the exhaust end extrusion molding of bias flow channel；
When valve core is vertically moving and realizes that first flow, second flow channel are connected by annular groove, center stream can be achieved
Molten state raw material in road is by first flow, annular groove, second flow channel and by extrusion channel extrusion molding.
More optimizing, in above-mentioned step S2, above-mentioned bias flow channel includes the first bias flow channel, the second bias flow channel,
And the pan feeding end position of the first bias flow channel is higher than the pan feeding end position of the second bias flow channel, wherein, the first bias flow channel, the
The exhaust end of two bias flow channels is placed in the side of valve pocket.
More optimize, the outer sleeve body in fixed setting, described overcoat are also socketed with above-mentioned step S2, outside valve pocket
Body is used to valve pocket be fixed.
More optimize, outer sleeve body upper end is also fixedly connected with supportive body, is offered on supportive body and overcoat body phase
Match and connecting hole, wherein valve core and connecting hole coaxial line arrange and be arranged in connecting hole, above-mentioned switching power
Mechanism is installed on supportive body.
Compared with prior art, the beneficial effect and advantage of acquirement are the present invention, 3D printing provided by the present invention
Machine extrusion mechanism can realize the switching of size/cross sectional shape of extrusion port, be suitable for the requirement of different print objects, can be notable
Raising to the printing effect of plane plate body, significantly shorten the time-write interval.
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 the structural representation of the present invention.
Fig. 2 is the structural representation that support member a matches with bonding mechanism.
Fig. 3 is the structural representation that support member a matches with bonding mechanism.
Fig. 4 is support member a structural representation.
Fig. 5 is the structural representation of bonding mechanism.
Fig. 6 is the structural representation that switching actuating unit matches with form switching mechanism.
Fig. 7 is the structural representation that switching actuating unit matches with form switching mechanism.
Fig. 8 is the structural representation that support member b matches with passage.
Fig. 9 is the structural representation that switching actuating unit matches with form switching mechanism.
Figure 10 is the structural representation that switching actuating unit matches with form switching mechanism.
Figure 11 is the structural representation that support member d matches with switching power output part.
Figure 12 is the structural representation that switching actuating unit matches with valve core.
Figure 13 is the structural representation that switching power output part matches with form switching mechanism.
Figure 14 is the structural representation that switching power output part matches with form switching mechanism.
Figure 15 is the structural representation of supportive body.
Figure 16 is the structural representation of cooling body.
Figure 17 is the structural representation of form switching mechanism.
Figure 18 is the structural representation of form switching mechanism.
Figure 19 is the structural representation of form switching mechanism.
Figure 20 is the structural representation of form switching mechanism.
Figure 21 is the structural representation of form switching mechanism.
Figure 22 is the structural representation of form switching mechanism.
Figure 23 is the structural representation of form switching mechanism.
Figure 24 is the structural representation of outer sleeve body.
Figure 25 is the structural representation of valve pocket.
Figure 26 is the structural representation of valve pocket.
Figure 27 is the structural representation of valve core.
Figure 28 is the structural representation of valve core.
Figure 29 is the structural representation that switching power output part matches with valve core.
Figure 30 is the structural representation of switching power output part.
Figure 31 is the structural representation of valve core.
It is denoted as in figure：
10th, supporter；110th, support member a；111st, holding tank；112nd, plup inlet；113rd, axial trough；
120th, support member b；130th, passage；131st, upper passage；132nd, lower material guiding pipe；140th, support member c；150th, support
Part d；160th, supportive body；161st, connecting hole；
20th, bonding mechanism；210th, power supply mechanism is tightened；210th, driving lever；220th, power wheel；230th, clamping wheel；240th, it is elastic
Part；
30th, actuating unit is switched；310th, power supply mechanism is switched；320th, power reception part is switched；330th, intermediate transmission portion
Part；340th, power output part is switched；
40th, form switching mechanism；
410th, valve core；411st, first flow；412nd, second flow channel；413rd, extrusion channel；414th, guide section；415th, thread segment；
416th, dividing plate；
420th, valve pocket；421st, annular groove；422nd, the first bias flow channel；423rd, the second bias flow channel；
430th, outer sleeve body；431st, boss is connected；432nd, guide groove；
50th, cooling body；510th, wind wheel；520th, air channel.
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 describes, it is clear that described embodiment is only part of the embodiment of the present 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 that is obtained
Example is applied, belongs to the scope of the present invention.
The solid feed referred in the present invention is the conventional consumptive material of 3D printer, and its section is circular thread like body.
As shown in figure 1, polymorphic 3D printer extrusion mechanism, it includes supporter 10, is installed on the bottom of supporter 10
Form switching mechanism 40, the switching actuating unit 30 for being installed on supporter 10, form switching mechanism 40 are arranged to squeeze at center
Do well, bias and switch between extrusion state, described switching actuating unit 30 is used to provide state to form switching mechanism 40
The power of switching.
As shown in Figure 17-31, form switching mechanism 40 includes the valve core 410 that can be moved in vertical direction, valve core 410
Lower end discharge end be provided with molten flow channel component, the bottom of valve core 410 is socketed with the valve positioned at melt flow road component external
Set 420, described molten flow channel component include first flow 411, second flow channel 412, extrusion channel 413, first flow 411, the
Two runners 412 are along the radial arrangement of valve core 410, and extrusion channel 413 is arranged along the central axial direction of valve core 410, valve core 410
On be additionally provided with for separate first flow 411, second flow channel 412 dividing plate 416, first flow 411 is located at the upper end of dividing plate 416
Portion, second flow channel 412 are located at the bottom of dividing plate 416, wherein, it is provided with along its center axis direction and arranges on valve core 410
Center flow channels, the pan feeding end of center flow channels can receive solid feed or molten state raw material, the discharge end of center flow channels
First flow 411 is connected, extrusion channel 413 is located at the bottom of second flow channel 412 and extrusion channel 413 and second flow channel
412 are connected, and it is interior also to guide groove that is logical and matching with the shape of valve core 410, valve pocket 420 that both ends are provided with valve pocket 420
The annular groove 421 for being more than guide groove diameter with guide groove coaxial line arrangement and diameter is provided with, first flow can pass through annular groove 421
Connected with second flow channel 412 and realize the molten state raw material in center flow channels by first flow, annular groove 421, second flow channel 412
And by the extrusion molding of extrusion channel 413；Bias flow channel, the feeding end of described bias flow channel are provided with above-mentioned valve pocket 420
Mouth is communicated in guide groove inner chamber, the exhaust end of bias flow channel be located at the bottom of valve pocket 420 and with the sensing side of extrusion channel 413
, can when valve core 410 is vertically moving and realizes that the feeding end of first flow 411 and bias flow channel is connected to identical
Realize that the molten state raw material in center flow channels is flowed into bias flow channel by first flow, and extruded by the exhaust end of bias flow channel
Shaping.
Particularly importantly, when first flow is connected by annular groove 421 and second flow channel 412, positioned at the on valve core 410
The wall portion of the lower end of two runner 412 is brought into close contact with the guide groove inwall of valve pocket 420, and realizes that annular groove 421 is opened with guide groove lower end
Mouth isolation；Its meaning is, avoids flowing directly into guide groove lower ending opening from annular groove from the molten state raw material that first flow flows into,
Cause the unstable of mechanism.
More perfectly, the lower end exhaust end of valve core 410 is arranged to taper；The effect of printing can be improved, avoids valve core
410 extrusion exhaust end collides with print object.
More optimally, above-mentioned bias flow channel includes the first bias flow channel 422, the second bias flow channel 423, and first
The pan feeding end position of bias flow channel 422 is higher than the pan feeding end position of the second bias flow channel 423, wherein, the first bias flow channel 422,
The exhaust end of second bias flow channel 423 is placed in the side of valve pocket 420.
More perfectly, above-mentioned extrusion channel 413, the first bias flow channel 422, the extrusion of the second bias flow channel 423 are cut
Face shape and/or shape are different；Connection using first flow from different extrusion ports, can be achieved different size/shapes
Extrusion molding, be suitable for the printing of more features.
More perfectly, the extrusion rectangular in cross-section shape of the first above-mentioned bias flow channel 422, the second bias flow channel 423,
And first bias flow channel 422 extrusion port length bearing of trend and the second bias flow channel 423 extrusion port length extension side
It it is 90 degree to junction angle.Its meaning is, can when needing to print basal plane or print the plate body of large-size
Large area is carried out by way of first flow and the first bias flow channel 422 or the second bias flow channel 423 are connected and use " brush "
Spraying, can significantly improve the printing effect to flat board category feature, and the first bias flow channel 422, the second bias flow channel 423
Angle of eccentricity is on the contrary, adaptation Sexual behavior mode can be carried out according to different features.
As shown in Figure 17-24, above-mentioned form switching mechanism 40 also includes being sheathed on the outside of valve pocket 420 and set in fixation
The outer sleeve body 430 put, described outer sleeve body 430 are used to valve pocket 420 be fixed.
As illustrated in figs. 13-15, supporter 10 includes supportive body 160, is offered and outer sleeve body 430 on supportive body 160
Match and connecting hole 161, described outer sleeve body 430 and supportive body 160 in being fixedly connected, wherein valve core 410 with
The coaxial line of connecting hole 161 is arranged and is arranged in connecting hole 161, and above-mentioned switching actuating unit 30 is installed on supportive body 160,
And valve core 410 is connected to the switching power output part 340 of switching actuating unit 30, switching actuating unit 30 also includes receiving
Power and to switching the passing power of power output part 340 switching power reception part 320, switch power output part 340
Power can be transferred to valve core 410 and realize the motion of valve core 410 vertically.
More perfectly, referring to accompanying drawing 17-31, above-mentioned valve core 410 includes being arranged concentrically and according to the flowing of raw material
Thread segment 415 that direction is set gradually, guide section 414, extruding zone, above-mentioned first flow 411, second flow channel 412, extrudate flow
Road 413 may be contained within extruding zone, and extruding zone and is arranged at the guide groove of valve pocket 420 and matches and along the axis direction of guide groove
Slide, the wall portion of guide section 414 is provided with several and is distributed along its circumferencial direction uniform intervals and along the axis side of valve core 410
To the guide plate of arrangement, above-mentioned switching power output part 340 is spur gear and switches the center of power output part 340
Place is additionally provided with through hole, and the inwall of the through hole is provided with the internal thread to match with thread segment 415, and above-mentioned switching power is defeated
The position for going out part 340 is fixed and can be provided with and be arranged on own axis, the above-mentioned outer sleeve body 430 of valve pocket 420/
The guide groove 432 that the guide plate of the wall portion of guide section 414 matches and moved for guide valve core body 410 in vertical direction.Switching
Power output part 340 receives power and realizes the rotation around own axes, and now switching power output part 340 can be to valve element
The thread segment 415 of body 410 transmits revolving force, and under the matching limitation of guide groove 432 and guide plate, realizes valve core 410 perpendicular
Nogata is subjected to displacement upwards, and realizes switching of the form switching mechanism 40 between polymorphic.
More specifically, referring to accompanying drawing 10-12, above-mentioned switching actuating unit 30 includes switching power supply mechanism 310
（Servomotor）, be installed on the output shaft end of switching power supply mechanism 310 and switching power supply mechanism 310 can be received and rotate
The switching power reception part 320 of power, switching actuating unit 30 also include being arranged at switching power reception part 320, switch and move
Between power output block 340 and it is used for the intermediate transmission part 330 for transmitting revolving force, switching power reception part 320 receives
Switch the revolving force of power supply mechanism 310 and transmit rotation to switching power output part 340 via intermediate transmission part 330
Power.
More perfectly, above-mentioned switching power reception part 320, intermediate transmission part 330 are spur gear, and centre passes
Dynamic component 330 is meshed with switching power reception part 320, switching power output part 340 respectively, and realizes the biography of revolving force
Pass.
As shown in Figure 13-15,18-31, being provided with above-mentioned supportive body 160 can be to the transferring heat energy of valve core 410
Thermal source, the feeding end of the center flow channels of valve core 410 receive solid feed, and the solid feed for being arranged at center flow channels absorbs heat
The heat energy and generation fusing, generation molten state raw material in center flow channels that source provides.
As illustrated in figs. 13-15, above-mentioned thermal source is the heating rod of cylindrical structure；More optimally, above-mentioned heating
Rod is installed in supportive body 160 in horizontal direction；More optimally, above-mentioned heating rod number is two and the valve that is placed in
The side of core body 410, thermal source can be achieved and provide stable, reliable heat energy to valve core 410.
As shown in Figure 18-31, center flow channels are made up of solid-state receiver section, the melting segment occurred being arranged concentrically, and solid-state receives
Section is used to receive solid feed, and melting segment occurred is used to be oriented to molten state raw material towards the runner of first flow 411, wherein, solid-state
The diameter of receiver section is identical with the cross sectional dimensions of solid feed and the diameter of solid-state receiver section is more than the straight of melting segment occurred
Footpath；Its meaning is that solid-state receiver section, the junction of melting segment occurred form the platform moved downward for limiting solid feed
Rank, and positioned at solid-state receiver section solid feed absorb thermal source provide heat energy when, caused molten state raw material flows directly into
Into melting segment occurred, solid feed can be avoided to be soaked in molten state raw material, can further realize solid feed and melting
The separation arrangement of state raw material.
As shown in Figure 17-31, above-mentioned outer sleeve body 430 is socketed on the outside of valve core 410, the upper end of outer sleeve body 430
The connection boss 431 to match with connecting hole 161, connection boss 431 and the end face of the junction of outer sleeve body 430 are provided with center
On offer the pilot hole to match with valve core 410, and be provided with and match with guide plate and for being oriented on pilot hole
The vertically moving guide groove 432 of valve core 410.
As shown in figs. 9-11, also it is fixedly connected with supportive body 160 and is sheathed on the outside of switching power output part 340 simultaneously
And for constraining the support member d150 of switching power output part；Using support member d150 effect of contraction, can be achieved to cut
Changing power output part 340 can only be around the rotation of own axes.
Cooling body 50 is also associated with supportive body 160, the cooling body 50 is used to squeeze from form switching mechanism 40
The raw material for going out shaping is cooled down, the rapid shaping being easy to during 3D printing, improves print quality；Referring to accompanying drawing 13,14,
16, described cooling body 50 includes wind wheel 510, air channel 520, and wind wheel 510 is arranged at the starting ends in air channel 520, air channel 520
Outlet air end towards the extrusion direction of form switching mechanism 40；The air-cooled mode of interests cools down；More optimally, wind
The cross sectional shape rectangular shaped in road 520, can improve air-cooled area.
As shown in Fig. 6,7,9, support member d150 upper end is also associated with the supporting part fixed with the phase of supportive body 160
Part c140, support member c140 can be used for switching power supply mechanism 310（Servomotor）Fixation.
As shown in figs 6-8, support member c140 upper end is additionally provided with support member b120 fixed thereto, supporting part
The avoid holes passed through for solid feed are offered on part b120；Solid feed introduces from outside, by avoid holes to valve core
410 center flow channels extension.
More optimally, it is also associated with matching with avoid holes on support member b120 and for guiding solid feed
Passage 130, described material guiding tube 130 include the upper passage 131, the lower material guiding pipe 132 that are arranged concentrically, lower material guiding pipe 132 with
Avoid holes match and upper passage 131 is located at the top of avoid holes, and the outer diameter of upper passage 131 is more than lower guide
The outer diameter of pipe 132；Its meaning is, utilizes upper passage 131, the step and avoidance of the junction of lower material guiding pipe 132 composition
Hole connects, and is avoided solid feed using the guiding function of passage and rubbed around avoid holes, and keep from heat softening
Solid feed is broken.
As shown in figures 1 to 6, support member b120 upper end is additionally provided with for promoting solid feed towards valve core 410
The bonding mechanism 20 of direction motion, described bonding mechanism 20 include tightening power supply mechanism 210（Motor）, be installed on and tighten
The power wheel 220 of the output shaft end of power supply mechanism 210, the power wheel 220 contact with the mantle friction of solid feed, power wheel
220 receive the revolving force for tightening the offer of power supply mechanism 210 and promote solid feed to be moved towards the direction of valve core 410.
More perfectly, above-mentioned bonding mechanism 20 also includes driving lever 210, and described driving lever 210 includes long bar segment, quarter butt
Section, long bar segment is vertically arranged with quarter butt section and L-shaped layout, driving lever 210 can be in long bar segment, quarter butt section perpendicular joints be
The heart deflects, and the free end of quarter butt section is also equipped with can be around the clamping wheel 230 of own axis, power wheel 220, clamping
The central axis of wheel 230 is parallel to each other and the region between power wheel 220, clamping wheel 230 forms clamping zone, and power wheel
220th, clamping wheel 230 is placed in a side of solid feed, and solid feed is introduced by outside and extends to power wheel 220, clamping
Clamping zone between wheel 230, the pretightning force provided by power wheel 220, clamping wheel 230 increase power wheel 220 and solid feed
Between frictional force, the stable of solid feed is promoted so as to realize.
More optimally, above-mentioned bonding mechanism 20 also includes elastic component 240, and elastic component 240 can be promoted on driving lever 210
Clamping wheel 230 deflects towards the direction of power wheel 220；More specifically, above-mentioned elastic component 240 is spring, elastic component 240
One end is against support 10, the other end against long bar segment, and the elastic force of the offer of elastic component 240 can realize the clamping wheel on driving lever
230 draw close towards power wheel 220.
More perfectly, the avoidance breach for allowing solid feed to pass through is provided with the long bar segment of above-mentioned driving lever 210；Solid-state
Raw material extends by avoiding breach to the clamping zone between power wheel 220, clamping wheel 230.
As shown in Fig. 1-4,6, above-mentioned supporter 10 also include be arranged at support member b120 upper ends and for pair
Offered and the rotational trajectory of driving lever 210 on the support member a110, described support member a110 that bonding mechanism 20 is supported
The holding tank 111 to match, it is further opened with being connected with holding tank 111 on support member a110 and for guiding solid feed
To the plup inlet 112 for avoiding gap extension, the center of central axial direction and plup inlet 112 is further opened with support member a110
Axis perpendicular and the axial trough 113 being connected with holding tank 111, tighten the output shaft and axial trough 113 of power supply mechanism 210
Match and be connected with the power wheel 220 in holding tank 111.
Above-mentioned polymorphic 3D printer extrusion mechanism is also connected to the axially directed mechanism of 3D printer, described
Axially directed mechanism includes X axis guiding mechanism, Y-axis guiding mechanism, Z axis to guiding mechanism；Carried using axially directed mechanism
The power of confession simultaneously realizes polymorphic 3D printer extrusion mechanism free movement in spatial dimension, and axially directed mechanism is existing
There is a technology, and those of ordinary skill in the art are easily known, therefore repeat no more herein.
The polymorphic extrusion method of 3D printer, its method include：
S1：Center flow channels at the center of valve core 410 receive solid feed or molten state raw material, when what center flow channels received is
, can be by being arranged at the thermal source outside valve core 410 to center flow channels transferring heat energy and realizing positioned at center stream during solid feed
Solid feed in road melts；
S2：Because the lower end discharge end of valve core 410 is provided with molten flow channel component, the bottom of valve core 410 is socketed with position
In the valve pocket 420 of melt flow road component external, described molten flow channel component includes first flow 411, second flow channel 412, extrudate flow
Road 413, first flow 411, second flow channel 412 are along the radial arrangement of valve core 410, and extrusion channel 413 is along the central shaft of valve core 410
Line direction arranges, be additionally provided with valve core 410 for separate first flow 411, second flow channel 412 dividing plate 416, it is first-class
Road 411 is located at the upper end of dividing plate 416, and second flow channel 412 is located at the bottom of dividing plate 416, and the discharge end of center flow channels is connected
First flow 411, extrusion channel 413 is located at the bottom of second flow channel 412 and extrusion channel 413 connects with second flow channel 412
It is logical, both ends are provided with valve pocket 420 to guide groove that is logical and matching with the shape of valve core 410, are additionally provided with valve pocket 420
It is more than the annular groove 421 of guide groove diameter with guide groove coaxial line arrangement and diameter, first flow can pass through annular groove 421 and second
Runner 412 is connected；Bias flow channel is provided with above-mentioned valve pocket 420, the pan feeding port of described bias flow channel is communicated in guiding
Groove inner chamber, the exhaust end of bias flow channel are located at the bottom of valve pocket 420 and identical with the pointing direction of extrusion channel 413；Wherein,
Valve core 410 is connected to the switching power output part 340 of switching actuating unit 30, and switching actuating unit 30 also includes receiving moving
Power and to switching the passing power of power output part 340 switching power reception part 320, switching power output part 340 can
Power is transferred to valve core 410 and realizes the motion of valve core 410 vertically；
When valve core 410 is vertically moving and realizes that first flow 411 is connected with bias flow channel, center flow channels can be achieved
Interior molten state raw material is flowed into bias flow channel by first flow, and by the exhaust end extrusion molding of bias flow channel；
When valve core 410 is vertically moving and realizes that first flow 411, second flow channel 412 are connected by annular groove 421,
The molten state raw material in center flow channels can be achieved by first flow, annular groove 421, second flow channel 412 and squeezed by extrusion channel 413
Go out shaping.
More perfectly, in above-mentioned step S2, above-mentioned bias flow channel biases including the first bias flow channel 422, second
Runner 423, and the pan feeding end position of the first bias flow channel 422 is higher than the pan feeding end position of the second bias flow channel 423, wherein,
First bias flow channel 422, the exhaust end of the second bias flow channel 423 are placed in the side of valve pocket 420.
More perfectly, the outer sleeve body 430 in fixed setting, institute are also socketed with above-mentioned step S2, outside valve pocket 420
The outer sleeve body 430 stated is used to valve pocket 420 be fixed.
More perfectly, the upper end of outer sleeve body 430 is also fixedly connected with supportive body 160, is offered on supportive body 160
Match with outer sleeve body 430 and connecting hole 161, wherein valve core 410 and the coaxial line of connecting hole 161 arrange and be arranged in
Connecting hole 161, above-mentioned switching actuating unit 30 are installed on supportive body 160.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable 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.
Claims (4)
- The polymorphic extrusion method of 1.3D printers, its method include：S1：Center flow channels at valve core center receive solid feed or molten state raw material, and what it is when center flow channels reception is solid During state raw material, it can be located at by the thermal source being arranged at outside valve core to center flow channels transferring heat energy and realization in center flow channels Solid feed melts；S2：Because the lower end discharge end of valve core is provided with molten flow channel component, the bottom of valve core is socketed with positioned at melt flow The valve pocket of road component external, described molten flow channel component include first flow, second flow channel, extrusion channel, first flow, second Runner is arranged along valve core radial arrangement, extrusion channel along valve core central axial direction, is additionally provided with valve core for dividing Every first flow, the dividing plate of second flow channel, first flow is located at dividing plate upper end, and second flow channel is located at the bottom of dividing plate, in The discharge end of heart runner connects first flow, and extrusion channel is located at the bottom of second flow channel and extrusion channel and second Road is connected, and both ends are provided with valve pocket to guide groove that is logical and matching with valve element shape, is additionally provided with and is led in valve pocket To groove coaxial line arrangement and diameter is more than the annular groove of guide groove diameter, and first flow can pass through annular groove and second flow channel is connected； Bias flow channel is provided with above-mentioned valve pocket, the pan feeding port of described bias flow channel is communicated in guide groove inner chamber, bias flow channel Exhaust end be located at the bottom of valve pocket and identical with the pointing direction of extrusion channel；Wherein, valve core is connected to switching power The switching power output part of mechanism, switching actuating unit also include receive power and to switching power output part passing power Switching power reception part, switching power output part power can be transferred to valve core and realize valve core vertically Motion；When valve core is vertically moving and realizes that first flow is connected with bias flow channel, can be achieved molten in center flow channels Melt state raw material to flow into bias flow channel by first flow, and by the exhaust end extrusion molding of bias flow channel；When valve core is vertically moving and realizes that first flow, second flow channel are connected by annular groove, center stream can be achieved Molten state raw material in road is by first flow, annular groove, second flow channel and by extrusion channel extrusion molding.
- 2. the polymorphic extrusion method of 3D printer according to claim 1, in above-mentioned step S2, above-mentioned biasing stream Road includes the first bias flow channel, the second bias flow channel, and the pan feeding end position of the first bias flow channel is higher than the second bias flow channel Pan feeding end position, wherein, the first bias flow channel, the exhaust end of the second bias flow channel are placed in the side of valve pocket.
- 3. the polymorphic extrusion method of 3D printer according to claim 2, in above-mentioned step S2, also covered outside valve pocket The outer sleeve body in fixed setting is connected to, described outer sleeve body is used to valve pocket be fixed.
- 4. the polymorphic extrusion method of 3D printer according to claim 3, outer sleeve body upper end are also fixedly connected with branch Support main body, offer on supportive body match with outer sleeve body and connecting hole, wherein valve core and connecting hole coaxial line cloth Put and be arranged in connecting hole, above-mentioned switching actuating unit is installed on supportive body.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117839919A (en) * | 2024-03-05 | 2024-04-09 | 西南交通大学烟台新一代信息技术研究院 | Road bridge steel construction application equipment |
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| US20170072614A1 (en) * | 2015-09-11 | 2017-03-16 | Ut-Battelle, Llc | Multi-orifice deposition nozzle for additive manufacturing |
| KR101734862B1 (en) * | 2015-12-17 | 2017-05-12 | 한국산업기술대학교 산학협력단 | Printer head having a variable nozzle |
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| CN117839919A (en) * | 2024-03-05 | 2024-04-09 | 西南交通大学烟台新一代信息技术研究院 | Road bridge steel construction application equipment |
| CN117839919B (en) * | 2024-03-05 | 2024-05-03 | 西南交通大学烟台新一代信息技术研究院 | Road bridge steel construction application equipment |
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| CN107521102B (en) | 2019-08-23 |
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