CN107696470B - Polymorphic 3D printer extrusion mechanism - Google Patents
Polymorphic 3D printer extrusion mechanism Download PDFInfo
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- CN107696470B CN107696470B CN201710797989.7A CN201710797989A CN107696470B CN 107696470 B CN107696470 B CN 107696470B CN 201710797989 A CN201710797989 A CN 201710797989A CN 107696470 B CN107696470 B CN 107696470B
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- switching power
- flow channel
- valve core
- runner
- extrusion
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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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- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
Abstract
The invention discloses polymorphic 3D printer extrusion mechanisms, it includes supporter, it is installed on the form switching mechanism of supporter bottom, it is installed on the switching power mechanism of supporter, form switching mechanism is arranged to that state can be squeezed out at center, switch between biasing extrusion state, the switching power mechanism is used to provide the power that state switches to form switching mechanism, the exhaust end of bias flow channel is located at the bottom of valve pocket and identical as the pointing direction of extrusion channel, when valve core is vertically moving and realizes the feeding end connection of first runner and bias flow channel, the molten state raw material that can be achieved in center flow channels flows into bias flow channel by first runner, and by the exhaust end extrusion molding of bias flow channel；It is additionally provided in valve pocket with guide groove coaxial line arrangement and diameter is greater than the annular groove of guide groove diameter, first runner can be connected by annular groove and second flow channel and realize that the molten state raw material in center flow channels passes through first runner, annular groove, second flow channel and by extrusion channel extrusion molding.
Description
Technical field
The present invention relates to 3D printer technologies.
Background technique
3D printing brings worldwide manufacturing industry revolution, be in the past component 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 makes enterprise not consider further that life when producing component
Production. art problem, the design of any complicated shape can be realized by 3D printer；3D printing is without machining or mould
Tool, can generate the object of any shape directly from computer graphics data, to highly shortened the production week of product
Phase improves productivity.Although being still left to be desired, 3D printing technique market potential is huge, certainly will become 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 cannot effectively realize switching for different characteristic printing, and constrain the key of printing effect.
Summary of the invention
To solve the deficiencies in the prior art, the object of the present invention is to provide a kind of 3D printings of achievable variform switching
Machine extrusion mechanism, and can significantly improve the efficiency of 3D printing.
To realize the above-mentioned technical purpose, the technical solution adopted in the present invention is as follows.
Polymorphic 3D printer extrusion mechanism comprising supporter, the form switching mechanism for being installed on supporter bottom, peace
Switching power mechanism loaded on supporter, form switching mechanism are arranged to squeeze out between state, biasing extrusion state at center
Switching, the switching power mechanism are used to provide the power that state switches 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 molten
Flow channel component, the lower end of valve core are socketed with the valve pocket positioned at melt flow road component external, and the molten flow channel component includes the
One runner, second flow channel, extrusion channel, first runner, second flow channel radially arrange that extrusion channel is along valve core along valve core
Heart axis direction arrangement, is additionally provided with the partition for separating first runner, second flow channel on valve core, first runner be located at every
Plate upper end, second flow channel are located at the lower end of partition, wherein are provided with along the arrangement of center axis thereof direction on valve core
Heart runner, 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 is connected
First runner, extrusion channel is located at the lower end of second flow channel and extrusion channel and second flow channel are connected, and is provided on valve pocket
Both ends are additionally provided with and guide groove coaxial line arrangement and straight guide groove that is logical and matching with spool shape in valve pocket
Diameter is greater than the annular groove of guide groove diameter, and first runner can be connected by annular groove and second flow channel and realize the melting in center flow channels
State raw material is by first runner, annular groove, second flow channel and by extrusion channel extrusion molding；
Bias flow channel is provided on above-mentioned valve pocket, the feed end of the bias flow channel is connected to guide groove inner cavity,
The exhaust end of bias flow channel is located at the bottom of valve pocket and identical as the pointing direction of extrusion channel, when valve core along the vertical direction
It moves and realizes when the feeding end of first runner and bias flow channel is connected, it can be achieved that molten state raw material in center flow channels is by the
One runner flows into bias flow channel, and by the exhaust end extrusion molding of bias flow channel；
Wherein, when first runner is connected by annular groove and second flow channel, the wall of second flow channel lower end is located on valve core
The guide groove inner wall of portion and valve pocket fits closely, and realizes that annular groove and guide groove lower ending opening completely cut off.
The further improvement of above 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 be higher than the second bias flow channel pan feeding end position, wherein the first bias flow channel, the second bias flow channel exhaust end be placed in
The side of valve pocket.
The further improvement of above scheme.
Above-mentioned form switching mechanism further includes being sheathed on outside valve pocket and is in the outer sleeve body of fixed setting, and described is outer
Body is for being fixed valve pocket.
The further improvement of above 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 arrange and be arranged in connecting hole, above-mentioned by valve core and connecting hole coaxial line
Switching power mechanism be installed on supportive body, and valve core is connected to the switching power output part of switching power mechanism, cuts
The force mechanisms that move further include the switching power reception component for receiving power and transmitting power to switching power output part, and switching is dynamic
Power can be transferred to valve core and realize the movement of valve core along the vertical direction by power output block.
The further improvement of above 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 runner, second flow channel, extrusion channel are all set in extruding zone, and extruding zone and are set to valve pocket
Guide groove matches and slides 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
It is spaced apart and along the guide plate of spool body axis direction arrangement, above-mentioned switching power output part is spur gear and to cut
It changes and is additionally provided with through-hole at the center of power output part, and the inner wall of the through-hole is provided with the interior spiral shell to match with thread segment
The position of line, above-mentioned switching power output part is fixed and can be provided with and set on own axis, above-mentioned valve pocket
The guide groove that the guide plate for being placed in guide section wall portion matches and moves for guide valve core in vertical direction.
The further improvement of above 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 runner, second flow channel, extrusion channel are all set in extruding zone, and extruding zone and are set to valve pocket
Guide groove matches and slides 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
It is spaced apart and along the guide plate of spool body axis direction arrangement, above-mentioned switching power output part is spur gear and to cut
It changes and is additionally provided with through-hole at the center of power output part, and the inner wall of the through-hole is provided with the interior spiral shell to match with thread segment
The position of line, above-mentioned switching power output part is fixed and can be arranged on own axis, above-mentioned valve pocket/outer sleeve body
The guide groove that the guide plate for having and being set to guide section wall portion matches and moves for guide valve core in vertical direction.
The further improvement of above scheme.
Above-mentioned switching power mechanism includes switching power supply mechanism, is installed on switching power supply mechanism output shaft end
And it can receive the switching power reception component of switching power supply mechanism rotary force, switching power mechanism further includes being set to cut
The power that moves receiving part, the intermediate transmission component for switching between power output part and being used to transmit rotary force, switch power
Receiving part receives switching power supply mechanism rotary force and revolves via intermediate transmission component to switching power output part transmitting
Turn power.
The polymorphic extrusion method of 3D printer, method include:
S1: the center flow channels at valve core center receive solid feed or molten state raw material, when center flow channels are received
It, can be by being set to the heat source outside valve core to center flow channels transferring heat energy and realizing and be located at center flow channels when for solid feed
In solid feed melt；
S2: since the lower end discharge end of valve core is provided with molten flow channel component, the lower end of valve core, which is socketed with, to be located at
The valve pocket of melt flow road component external, the molten flow channel component include first runner, second flow channel, extrusion channel, first runner,
Second flow channel radially arranges that extrusion channel is arranged along valve core central axial direction along valve core, is additionally provided with use on valve core
In the partition for separating first runner, second flow channel, first runner is located at partition upper end, and second flow channel is located at the lower end of partition
Portion, the discharge ends of center flow channels connect first runner, extrusion channel be located at the lower end of second flow channel and extrusion channel and
Second flow channel is connected, and both ends are provided on valve pocket to guide groove that is logical and matching with spool shape, are also set up in valve pocket
Have with guide groove coaxial line arrangement and diameter is greater than the annular groove of guide groove diameter, first runner can pass through annular groove and second flow channel
It connects；Bias flow channel is provided on above-mentioned valve pocket, the feed end of the bias flow channel is connected to guide groove inner cavity, biasing
The exhaust end of runner is located at the bottom of valve pocket and identical as the pointing direction of extrusion channel；Wherein, valve core is connected to switching
The switching power output part of power mechanism, switching power mechanism further include receiving power and transmitting to switching power output part
Power can be transferred to valve core and realize valve core along vertical by the switching power reception component of power, switching power output part
The movement in direction；
When valve core is vertically moving and realizes that first runner and bias flow channel are connected, it can be achieved that in center flow channels
Molten state raw material flowed into bias flow channel by first runner, and by the exhaust end extrusion molding of bias flow channel；
When valve core is vertically moving and realize first runner, second flow channel by annular groove connect when, it can be achieved that in
Molten state raw material in heart runner is by first runner, annular groove, second flow channel and by extrusion channel extrusion molding.
More optimized, 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.
It is more optimized, the outer sleeve body in fixed setting, the housing are also socketed in above-mentioned step S2, outside valve pocket
Body is for being fixed valve pocket.
More optimized, outer sleeve body upper end is also fixedly connected with supportive body, offers on supportive body and outer sleeve body phase
Match and connecting hole, wherein valve core and connecting hole coaxial line are arranged and are arranged in connecting hole, above-mentioned switching power
Mechanism is installed on supportive body.
Compared with prior art, the present invention the beneficial effect and the advantage is that 3D printing provided by the present invention that obtain
Machine extrusion mechanism can realize the size/cross sectional shape switching for squeezing out port, be suitable for the requirement of different print objects, can be significant
Raising to the printing effect of planar plate body, it is significant to shorten the print time.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly, attached drawing needed in the embodiment will be done simply below
It introduces, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill people
For member, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram that support member a and bonding mechanism match.
Fig. 3 is the structural schematic diagram that support member a and bonding mechanism match.
Fig. 4 is the structural schematic diagram of support member a.
Fig. 5 is the structural schematic diagram of bonding mechanism.
Fig. 6 is the structural schematic diagram for switching power mechanism and form switching mechanism and matching.
Fig. 7 is the structural schematic diagram for switching power mechanism and form switching mechanism and matching.
Fig. 8 is the structural schematic diagram that support member b and passage match.
Fig. 9 is the structural schematic diagram for switching power mechanism and form switching mechanism and matching.
Figure 10 is the structural schematic diagram for switching power mechanism and form switching mechanism and matching.
Figure 11 is support member d and switches the structural schematic diagram that power output part matches.
Figure 12 is the structural schematic diagram for switching power mechanism and valve core and matching.
Figure 13 is the structural schematic diagram for switching power output part and form switching mechanism and matching.
Figure 14 is the structural schematic diagram for switching power output part and form switching mechanism and matching.
Figure 15 is the structural schematic diagram of supportive body.
Figure 16 is the structural schematic diagram of cooling body.
Figure 17 is the structural schematic diagram of form switching mechanism.
Figure 18 is the structural schematic diagram of form switching mechanism.
Figure 19 is the structural schematic diagram of form switching mechanism.
Figure 20 is the structural schematic diagram of form switching mechanism.
Figure 21 is the structural schematic diagram of form switching mechanism.
Figure 22 is the structural schematic diagram of form switching mechanism.
Figure 23 is the structural schematic diagram of form switching mechanism.
Figure 24 is the structural schematic diagram of outer sleeve body.
Figure 25 is the structural schematic diagram of valve pocket.
Figure 26 is the structural schematic diagram of valve pocket.
Figure 27 is the structural schematic diagram of valve core.
Figure 28 is the structural schematic diagram of valve core.
Figure 29 is the structural schematic diagram for switching power output part and valve core and matching.
Figure 30 is the structural schematic diagram for switching power output part.
Figure 31 is the structural schematic diagram of valve core.
It is denoted as in figure:
10, supporter；110, support member a；111, holding tank；112, plup inlet；113, axial trough；
120, support member b；130, passage；131, upper passage；132, lower material guiding pipe；140, support member c；150,
Support member d；160, supportive body；161, connecting hole；
20, bonding mechanism；210, power supply mechanism is tightened；210, driving lever；220, power wheel；230, clamping wheel；240,
Elastic component；
30, switch power mechanism；310, switch power supply mechanism；320, switch power reception component；330, intermediate to pass
Dynamic component；340, switch power output part；
40, form switching mechanism；
410, valve core；411, first runner；412, second flow channel；413, extrusion channel；414, guide section；415, screw thread
Section；416, partition；
420, valve pocket；421, annular groove；422, the first bias flow channel；423, the second bias flow channel；
430, outer sleeve body；431, boss is connected；432, guide groove；
50, cooling body；510, wind wheel；520, air duct.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, those of ordinary skill in the art without making creative work, every other reality obtained
Example is applied, the scope of the present invention is belonged to.
The solid feed referred in the present invention is the conventional consumptive material of 3D printer, and section is circular threadlike body.
As shown in Figure 1, polymorphic 3D printer extrusion mechanism comprising supporter 10 is installed on 10 bottom of supporter
Form switching mechanism 40, the switching power mechanism 30 for being installed on supporter 10, form switching mechanism 40 are arranged to squeeze at center
It does well, bias and switch between extrusion state, the switching power mechanism 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 lower end of valve core 410 is socketed with the valve positioned at melt flow road component external
Set 420, the molten flow channel component include first runner 411, second flow channel 412, extrusion channel 413, first runner 411, the
Two runners 412 are along the radial arrangement of valve core 410, and extrusion channel 413 is along 410 central axial direction of valve core arrangement, valve core 410
On be additionally provided with partition 416 for separating first runner 411, second flow channel 412, first runner 411 is located at 416 upper end of partition
Portion, second flow channel 412 are located at the lower end of partition 416, wherein are provided on valve core 410 and arrange along center axis thereof direction
Center flow channels, the pan feeding ends of center flow channels can receive solid feed or molten state raw material, the discharge end of center flow channels
First runner 411 is connected, extrusion channel 413 is located at the lower end of second flow channel 412 and extrusion channel 413 and second flow channel
412 connect, and both ends are provided on valve pocket 420 to guide groove that is logical and matching with 410 shape of valve core, valve pocket 420 is interior also
It is provided with guide groove coaxial line arrangement and diameter is greater than the annular groove 421 of guide groove diameter, first runner can pass through annular groove 421
It is connected with second flow channel 412 and realizes the molten state raw material in center flow channels by first runner, annular groove 421, second flow channel 412
And by 413 extrusion molding of extrusion channel；Bias flow channel, the feeding end of the bias flow channel are provided on above-mentioned valve pocket 420
Mouth is connected to guide groove inner cavity, and the exhaust end of bias flow channel is located at the bottom of valve pocket 420 and the direction side with extrusion channel 413
It, can when valve core 410 is vertically moving and realizes that the feeding end of first runner 411 and bias flow channel is connected to identical
It realizes that the molten state raw material in center flow channels flows into bias flow channel by first runner, and is squeezed out by the exhaust end of bias flow channel
Molding.
Particularly importantly, when first runner is connected by annular groove 421 and second flow channel 412, the is located on valve core 410
The wall portion of two runners, 412 lower end is fitted closely with the guide groove inner wall of valve pocket 420, and realizes that annular groove 421 is opened with guide groove lower end
Mouth isolation；Its significance lies in that the molten state raw material flowed into from first runner is avoided to flow directly into guide groove lower ending opening from annular groove,
Cause the unstable of mechanism.
More perfectly, 410 lower end exhaust end of valve core is arranged to cone cell；The effect that 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, the extrusion section of above-mentioned extrusion channel 413, the first bias flow channel 422, the second bias flow channel 423
Face shape and/or shape are different；Using first runner from the different connections for squeezing out port, it can be achieved that 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 extending direction and the second bias flow channel 423 extrusion port length extension side
It is 90 degree to junction angle.Its significance lies in that when needing to print basal plane or print the plate body of larger size, it can
Large area is carried out in such a way that first runner and the first bias flow channel 422 or the second bias flow channel 423 are connected using " brush "
Spraying, can significantly improve the printing effect to plate category feature, and the first bias flow channel 422, the second bias flow channel 423
Angle of eccentricity is on the contrary, adaptability selection can be carried out according to different features.
As shown in Figure 17-24, above-mentioned form switching mechanism 40 further includes being sheathed on 420 outside of valve pocket and setting in fixation
The outer sleeve body 430 set, the outer sleeve body 430 is for being fixed valve pocket 420.
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, the outer sleeve body 430 and supportive body 160 in being fixedly connected, wherein valve core 410 with
161 coaxial line of connecting hole is arranged and is arranged in connecting hole 161, and above-mentioned switching power mechanism 30 is installed on supportive body 160,
And valve core 410 is connected to the switching power output part 340 of switching power mechanism 30, switching power mechanism 30 further includes receiving
Power and the switching power reception component 320 that power is transmitted to switching power output part 340, switch power output part 340
Power can be transferred to valve core 410 and realize the movement of valve core 410 along the vertical direction.
More perfectly, referring to attached 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 runner 411, second flow channel 412, extrudate flow
Road 413 is all set in extruding zone, and extruding zone matches and with the guide groove for being set to valve pocket 420 along the axis direction of guide groove
Sliding, the wall portion of guide section 414 are provided with several and are evenly spaced on along its circumferencial direction and along 410 axis side of valve core
To the guide plate of arrangement, above-mentioned switching power output part 340 is spur gear and the center for switching power output part 340
Place is additionally provided with through-hole, and the inner wall of the through-hole is provided with the internal screw thread to match with thread segment 415, and above-mentioned switching power is defeated
The position of component 340 is fixed and can be provided with and be set on own axis, above-mentioned 420/ outer sleeve body 430 of valve pocket out
The guide groove 432 that the guide plate of 414 wall portion of guide section matches and moves for guide valve core 410 in vertical direction.Switching
Power output part 340 receives power and realizes the rotation around own axes, and switching power output part 340 at this time can be to spool
The thread segment 415 of body 410 transmits rotary force, and under the matching of guide groove 432 and guide plate limitation, realizes valve core 410 perpendicular
Histogram is subjected to displacement upwards, and realizes switching of the form switching mechanism 40 between polymorphic.
More specifically, referring to attached drawing 10-12, above-mentioned switching power mechanism 30 includes switching power supply mechanism 310
(servo motor) is installed on switching 310 output shaft end of power supply mechanism and can receive the rotation of switching power supply mechanism 310
The switching power reception component 320 of power, switching power mechanism 30 further include being set to switching power reception component 320, switching and move
Intermediate transmission component 330 between power output block 340 and for transmitting rotary force, switching power reception component 320 receive
Switch 310 rotary force of power supply mechanism and is rotated via intermediate transmission component 330 to the switching transmitting of power output part 340
Power.
More perfectly, above-mentioned switching power reception component 320, intermediate transmission component 330 are spur gear, and centre passes
Dynamic component 330 is meshed with switching power reception component 320, switching power output part 340 respectively, and realizes the biography of rotary force
It passs.
As shown in Figure 13-15,18-31, being provided on above-mentioned supportive body 160 can be to 410 transferring heat energy of valve core
The feeding end of heat source, the center flow channels of valve core 410 receives solid feed, and the solid feed for being set to center flow channels absorbs heat
Simultaneously fusing occurs in center flow channels, generates molten state raw material for the thermal energy of source offer.
As illustrated in figs. 13-15, above-mentioned heat source is the heating rod of cylindrical structure；More optimally, above-mentioned heating
Stick is installed in horizontal direction in supportive body 160；More optimally, above-mentioned heating rod number is two and the valve that is placed in
The side of core 410 is, it can be achieved that heat source provides stable, reliable thermal energy to valve core 410.
As shown in Figure 18-31, center flow channels are made of solid-state receiver section, the melting segment occurred being arranged concentrically, and solid-state receives
Section is for receiving solid feed, and melting segment occurred is for being oriented to molten state raw material towards 411 runner of first runner, wherein solid-state
And the cross sectional dimensions of solid feed is identical and the diameter of solid-state receiver section is greater than the straight of melting segment occurred for the diameter of receiver section
Diameter；Its significance lies in that the junction of solid-state receiver section, melting segment occurred forms the platform moved downward for limiting solid feed
Rank, and be located at solid-state receiver section solid feed absorb heat source provide thermal energy when, the molten state raw material of generation flows directly into
Into melting segment occurred, avoidable solid feed is soaked in molten state raw material, can further realize solid feed and melting
The separation of state raw material is arranged.
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
It is provided with the connection boss 431 to match with connecting hole 161 at center, connects the end face of boss 431 and 430 junction of outer sleeve body
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, it is also fixedly connected on supportive body 160 and is sheathed on 340 outside of switching power output part simultaneously
And the support member d150 for constraining switching power output part；Using the effect of contraction of support member d150, it can be achieved that cutting
Changing power output part 340 can only be around the rotation of own axes.
Cooling body 50 is also connected on supportive body 160, the cooling body 50 from form switching mechanism 40 for that will squeeze
Molding raw material is cooled down out, convenient for the rapid shaping during 3D printing, improves print quality；Referring to attached drawing 13,14,
16, the cooling body 50 includes wind wheel 510, air duct 520, and wind wheel 510 is set to the starting ends in air duct 520, air duct 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 be improved air-cooled area.
As shown in Fig. 6,7,9, the upper end of support member d150 is also connected with the support portion fixed with 160 phase of supportive body
Part c140, support member c140 can be used for switching power supply mechanism 310(servo motor) fixation.
As shown in figs 6-8, the upper end of support member c140 is additionally provided with support member b120 fixed thereto, support portion
The avoid holes passed through for solid feed are offered on part b120；Solid feed is introduced from external, by avoid holes to valve core
410 center flow channels extend.
More optimally, it is also connected with and matches with avoid holes and for guiding solid feed on support member b120
Passage 130, the 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 greater than lower guide
The outer diameter of pipe 132；Its significance lies in that utilizing upper passage 131, the step and evacuation of 132 junction of lower material guiding pipe composition
Hole connection, and avoid rubbing around solid feed and avoid holes using the guiding function of passage, keep from heat softening
Solid feed is broken.
As shown in figures 1 to 6, the upper end of support member b120 is additionally provided with for pushing solid feed towards valve core 410
Direction movement bonding mechanism 20, the bonding mechanism 20 include tighten power supply mechanism 210(motor), be installed on and tighten
The power wheel 220 of 210 output shaft end of power supply mechanism, the power wheel 220 are contacted with the mantle friction of solid feed, power wheel
220 receive the rotary force for tightening the offer of power supply mechanism 210 and solid feed are pushed to move towards the direction of valve core 410.
More perfectly, above-mentioned bonding mechanism 20 further includes driving lever 210, and the driving lever 210 includes long rod segment, quarter butt
Section, long rod segment and quarter butt section are vertically arranged and L-shaped layout, during driving lever 210 can be around long rod segment, quarter butt section perpendicular joints
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 constitutes clamping zone, and power wheel
220, clamping wheel 230 is placed in the one end of solid feed, and solid feed is introduced by outside and extended to power wheel 220, clamping
Clamping zone between wheel 230 increases power wheel 220 and solid feed by the pretightning force that power wheel 220, clamping wheel 230 provide
Between frictional force, thus realize to solid feed stablize promote.
More optimally, above-mentioned bonding mechanism 20 further includes elastic component 240, and elastic component 240 can push on driving lever 210
Clamping wheel 230 is deflected 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 rod segment, and the elastic force that elastic component 240 provides can realize the clamping wheel on driving lever
230 draw close towards power wheel 220.
More perfectly, the evacuation notch for allowing solid feed to pass through is provided in the long rod segment of above-mentioned driving lever 210；Solid-state
Raw material extends by evacuation notch to the clamping zone between power wheel 220, clamping wheel 230.
Picture 1-4, shown in 6, above-mentioned supporter 10 further include be set to the upper end support member b120 and for pair
It is offered and 210 rotational trajectory of driving lever on the support member a110, the support member a110 that bonding mechanism 20 is supported
The holding tank 111 to match is also provided on support member a110 and is connected with holding tank 111 and for guiding solid feed
To the plup inlet 112 of evacuation notch extension, the center of central axial direction Yu plup inlet 112 is also provided on 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 is connected with the power wheel 220 being located 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；It is mentioned 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 are technology and those of ordinary skill in the art to be easy to know, therefore repeats no more herein.
The polymorphic extrusion method of 3D printer, method include:
S1: the center flow channels at 410 center of valve core receive solid feed or molten state raw material, when center flow channels receive
When being solid feed, it can be located at by the heat source that is set to outside valve core 410 to center flow channels transferring heat energy and realizing
Solid feed in heart runner melts；
S2: since the lower end discharge end of valve core 410 is provided with molten flow channel component, the lower end socket of valve core 410
There is the valve pocket 420 positioned at melt flow road component external, the molten flow channel component includes first runner 411, second flow channel 412, squeezes
Runner 413 out, first runner 411, second flow channel 412 are along the radial arrangement of valve core 410, and extrusion channel 413 is along valve core 410
Heart axis direction is arranged, the partition 416 for separating first runner 411, second flow channel 412 is additionally provided on valve core 410, the
One runner 411 is located at 416 upper end of partition, and second flow channel 412 is located at the lower end of partition 416, the discharge end of center flow channels
First runner 411 is connected, extrusion channel 413 is located at the lower end of second flow channel 412 and extrusion channel 413 and second flow channel
412 connect, and both ends are provided on valve pocket 420 to guide groove that is logical and matching with 410 shape of valve core, valve pocket 420 is interior also
It is provided with guide groove coaxial line arrangement and diameter is greater than the annular groove 421 of guide groove diameter, first runner can pass through annular groove 421
It is connected with second flow channel 412；Bias flow channel, the feed end connection of the bias flow channel are provided on above-mentioned valve pocket 420
In guide groove inner cavity, the exhaust end of bias flow channel is located at the bottom of valve pocket 420 and the pointing direction phase with extrusion channel 413
Together；Wherein, valve core 410 is connected to the switching power output part 340 of switching power mechanism 30, and switching power mechanism 30 also wraps
The switching power reception component 320 for receiving power and transmitting power to switching power output part 340 is included, power output portion is switched
Power can be transferred to valve core 410 and realize the movement of valve core 410 along the vertical direction by part 340；
When valve core 410 is vertically moving and realizes that first runner 411 and bias flow channel are connected, it can be achieved that center
Molten state raw material in runner flows into bias flow channel by first runner, and by the exhaust end extrusion molding of bias flow channel；
When valve core 410 is vertically moving and realizes that first runner 411, second flow channel 412 are connected by annular groove 421
When, it can be achieved that molten state raw material in center flow channels by first runner, annular groove 421, second flow channel 412 and by extrusion channel
413 extrusion moldings.
More perfectly, in above-mentioned step S2, above-mentioned bias flow channel is biased 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 second bias flow channel 423 exhaust end be placed in the side of valve pocket 420.
More perfectly, the outer sleeve body 430 in fixed setting, institute are also socketed in above-mentioned step S2, outside valve pocket 420
The outer sleeve body 430 stated is for being fixed valve pocket 420.
More perfectly, 430 upper end of outer sleeve body is also fixedly connected with supportive body 160, offers on supportive body 160
Match with outer sleeve body 430 and connecting hole 161, wherein valve core 410 and 161 coaxial line of connecting hole are arranged and are arranged in
Connecting hole 161, above-mentioned switching power mechanism 30 are installed on supportive body 160.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention；
Various modifications to these embodiments will be readily apparent to those skilled in the art, defined in the present invention
General Principle can be realized in other embodiments in the case where not departing from spirit or scope of the invention.Therefore, originally
Invention will not be defined to the embodiments shown herein, and be to fit to and the principles and novel features disclosed herein
Consistent widest scope.
Claims (8)
1. polymorphic 3D printer extrusion mechanism, which is characterized in that it includes supporter, the form that is installed on supporter bottom is cut
Change planes structure, be installed on the switching power mechanism of supporter, form switching mechanism is arranged to that state can be squeezed out at center, biasing squeezes out
Switch between state, the switching power mechanism is used to provide the power that state switches 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 lower end of valve core are socketed with the valve pocket positioned at melt flow road component external, and the molten flow channel component includes first-class
Road, second flow channel, extrusion channel, first runner, second flow channel radially arrange that extrusion channel is along valve core central axis along valve core
Line direction is arranged, the partition for separating first runner, second flow channel is additionally provided on valve core, and first runner is located on partition
End, second flow channel are located at the lower end of partition, wherein are provided on valve core and flow along the center of center axis thereof direction arrangement
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 lower end of second flow channel and extrusion channel and second flow channel are connected, and is provided with both ends on valve pocket
To guide groove that is logical and matching with spool shape, be additionally provided in valve pocket with guide groove coaxial line arrangement and diameter it is big
In the annular groove of guide groove diameter, first runner 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 runner, annular groove, second flow channel and by extrusion channel extrusion molding；
Bias flow channel is provided on above-mentioned valve pocket, the feed end of the bias flow channel is connected to guide groove inner cavity, biasing
The exhaust end of runner is located at the bottom of valve pocket and identical as the pointing direction of extrusion channel, when valve core is vertically moving
And it realizes when the feeding end of first runner and bias flow channel is connected, it can be achieved that the molten state raw material in center flow channels is by first-class
Road flows into bias flow channel, and by the exhaust end extrusion molding of bias flow channel；
Wherein, when first runner is connected by annular groove and second flow channel, be located on valve core the wall portion of second flow channel lower end with
The guide groove inner wall of valve pocket fits closely, and realizes that annular groove and guide groove lower ending opening completely cut off.
2. polymorphic 3D printer extrusion mechanism according to claim 1, which is characterized in that above-mentioned bias flow channel includes
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 of the second bias flow channel
End position, wherein the first bias flow channel, the second bias flow channel exhaust end be placed in the side of valve pocket.
3. polymorphic 3D printer extrusion mechanism according to claim 1 or 2, which is characterized in that above-mentioned form switching
Mechanism further includes being sheathed on outside valve pocket and is in the outer sleeve body of fixed setting, and the outer sleeve body is for consolidating valve pocket
It is fixed.
4. polymorphic 3D printer extrusion mechanism according to claim 1, which is characterized in that supporter includes support master
Body, offer on supportive body match with outer sleeve body and connecting hole, the outer sleeve body and supportive body connect in fixed
It connects, wherein valve core is arranged with connecting hole coaxial line and is arranged in connecting hole, and above-mentioned switching power mechanism is installed on support
Main body, and valve core is connected to the switching power output part of switching power mechanism, switching power mechanism further includes receiving power
And to the switching power reception component of switching power output part transmitting power, power can be transferred to by switching power output part
Valve core simultaneously realizes the movement of valve core along the vertical direction.
5. polymorphic 3D printer extrusion mechanism according to claim 4, which is characterized in that above-mentioned valve core includes same
Thread segment, guide section, the extruding zone that the heart is arranged and is set gradually according to the flow direction of raw material, above-mentioned first runner, second
Runner, extrusion channel are all set in extruding zone, and extruding zone matches and with the guide groove for being set to valve pocket along the axis of guide groove
The sliding of line direction, the wall portion of guide section are provided with several and are evenly spaced on along its circumferencial direction and along spool body axis side
To the guide plate of arrangement, above-mentioned switching power output part is that spur gear and switching also is set at the center of power output part
It is equipped with through-hole, and the inner wall of the through-hole is provided with the internal screw thread to match with thread segment, above-mentioned switching power output part
Position, which is fixed and can be provided with and be set to the guide plate of guide section wall portion on own axis, above-mentioned valve pocket, to match
And the guide groove moved for guide valve core in vertical direction.
6. polymorphic 3D printer extrusion mechanism according to claim 4, which is characterized in that above-mentioned valve core includes same
Thread segment, guide section, the extruding zone that the heart is arranged and is set gradually according to the flow direction of raw material, above-mentioned first runner, second
Runner, extrusion channel are all set in extruding zone, and extruding zone matches and with the guide groove for being set to valve pocket along the axis of guide groove
The sliding of line direction, the wall portion of guide section are provided with several and are evenly spaced on along its circumferencial direction and along spool body axis side
To the guide plate of arrangement, above-mentioned switching power output part is that spur gear and switching also is set at the center of power output part
It is equipped with through-hole, and the inner wall of the through-hole is provided with the internal screw thread to match with thread segment, above-mentioned switching power output part
Position is fixed and can be provided with and be set to the guiding of guide section wall portion on own axis, above-mentioned valve pocket/outer sleeve body
The guide groove that plate matches and moves for guide valve core in vertical direction.
7. polymorphic 3D printer extrusion mechanism according to claim 5, which is characterized in that above-mentioned switching power mechanism
Including switching power supply mechanism, it is installed on switching power supply mechanism output shaft end and can receive switching power supply mechanism
The switching power reception component of rotary force, switching power mechanism further include be set to switching power reception component, switching power it is defeated
Intermediate transmission component between component and for transmitting rotary force out, switching power reception component receive switching power supply machine
Structure rotary force simultaneously transmits rotary force to switching power output part via intermediate transmission component.
8. polymorphic 3D printer extrusion mechanism according to claim 6, which is characterized in that above-mentioned switching power mechanism
Including switching power supply mechanism, it is installed on switching power supply mechanism output shaft end and can receive switching power supply mechanism
The switching power reception component of rotary force, switching power mechanism further include be set to switching power reception component, switching power it is defeated
Intermediate transmission component between component and for transmitting rotary force out, switching power reception component receive switching power supply machine
Structure rotary force simultaneously transmits rotary force to switching power output part via intermediate transmission component.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106426909A (en) * | 2016-11-16 | 2017-02-22 | 扬州大学 | Quick-change type multi-station 3D printing spray head based on low-temperature colloidal biological material |
| CN106926459A (en) * | 2017-04-28 | 2017-07-07 | 六安永贞匠道机电科技有限公司 | Many shower nozzle automatic switchover systems |
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| US9821518B2 (en) * | 2014-08-19 | 2017-11-21 | Daniel A. Bloom | Precision platform assembly for three-dimensional printer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106426909A (en) * | 2016-11-16 | 2017-02-22 | 扬州大学 | Quick-change type multi-station 3D printing spray head based on low-temperature colloidal biological material |
| CN106926459A (en) * | 2017-04-28 | 2017-07-07 | 六安永贞匠道机电科技有限公司 | Many shower nozzle automatic switchover systems |
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Address after: Mount Huangshan Road, Shushan District of Hefei City, Anhui province 230031 No. 639 Jindadi mansion 7 Building 1807 Yongzhen Jiang Dao Hefei Office Applicant after: Lu'an Yongzhen Jiang Dao Electromechanical Technology Co Ltd Address before: 237000 room 75, Golden Phoenix wealth square, Lu'an economic and Technological Development Zone, Lu'an, Anhui Applicant before: Lu'an Yongzhen Jiang Dao Electromechanical Technology Co Ltd |
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