CN107160689A - A kind of dual-caliber, variable-flow formula 3D printer extrusion - Google Patents
A kind of dual-caliber, variable-flow formula 3D printer extrusion Download PDFInfo
- Publication number
- CN107160689A CN107160689A CN201710626528.3A CN201710626528A CN107160689A CN 107160689 A CN107160689 A CN 107160689A CN 201710626528 A CN201710626528 A CN 201710626528A CN 107160689 A CN107160689 A CN 107160689A
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- Prior art keywords
- extrusion
- block
- wall
- guide mechanism
- material guide
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/295—Heating elements
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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
Abstract
The invention discloses a kind of dual-caliber, variable-flow formula 3D printer extrusion includes material guide mechanism, drive mechanism, heating arrangements, bin stock mechanism, bin stock mechanism is provided with inner chamber and inner chamber stores consumptive material for printing workpiece, the exhaust end of bin stock actuator base is connected with the feed end on material guide mechanism top, described material guide mechanism is used to by bin stock mechanism extrude consumptive material to the print job face below material guide mechanism exhaust end, the middle part of material guide mechanism sets the heating arrangements for being provided with the required thermal source of consumptive material melting, material guide mechanism also includes controlling organization, guide mechanism, the controlling organization is installed on the bottom of material guide mechanism and available for the extrusion bore of control consumptive material, extrude flow, described guide mechanism is arranged at the middle part of material guide mechanism, the leading end of guide mechanism and the output end of drive mechanism connect and by the output end of drive mechanism the leading end of guide mechanism can be driven to be subjected to displacement on guide direction.
Description
Technical field
The present invention relates to a kind of 3D printer extrusion, and in particular to a kind of dual-caliber, variable-flow formula 3D printer extrusion
Mouthful.
Background technology
3D printer is a kind of machine of a kind of accumulation manufacturing technology, i.e. RP technique, and it is a kind of mathematical model
Based on file, with special wax material, powdery metal or plastics etc. can jointing material, pass through printing jointing material from level to level
To manufacture the object of three-dimensional, 3D printer constitutes and manufactured product by the way of successively printing at this stage.
3D printer extrusion is used to by storage cavity extrude jointing material to print job face, existing printer extrusion
The mouth jointing material amounts for using fixed bore and being extruded in the unit interval by extrusion have a disadvantage in that more for definite value：Work as life
When producing different to the required precision of printing, the bore of extrusion with extrusion capacity can not respective change, i.e. required precision be higher therewith
When, fixed bore can not meet production required precision, when required precision is relatively low, and the extrusion capacity of fixed bore is smaller, printing effect
It is relatively low.
The content of the invention
To solve the deficiencies in the prior art, there are two kinds of bore 3D printer extrusions simultaneously it is an object of the invention to provide one kind
And the switching of different bores need not interrupt the print procedure of printer, while the present invention also has the controllable function of flow and can
The unit interval extrusion capacity of extrusion is adjusted the need for being printed according to reality.
A kind of dual-caliber, variable-flow formula 3D printer extrusion, it includes material guide mechanism, drive mechanism, heating arrangements, storage
Expect mechanism, bin stock mechanism is provided with inner chamber and inner chamber stores consumptive material for printing workpiece, the discharge of bin stock actuator base
End is connected with the feed end on material guide mechanism top, and described material guide mechanism is used to by bin stock mechanism extrude consumptive material to positioned at guide
Print job face below mechanism exhaust end, the middle part of material guide mechanism sets the heater for being provided with the required thermal source of consumptive material melting
Structure, material guide mechanism also includes controlling organization, guide mechanism, and the controlling organization is installed on the bottom of material guide mechanism and can be used for
Extrusion bore, the extrusion flow of consumptive material are controlled, described guide mechanism is arranged at the middle part of material guide mechanism, the guiding of guide mechanism
End is connected with the output end of drive mechanism and can drive the leading end of guide mechanism in guide by the output end of drive mechanism
It is subjected to displacement on direction.
The further improvement of above-mentioned technical proposal.
Described material guide mechanism includes extrusion outer wall, drainage conduit, and extrusion outer wall is tapered and is provided with and extrudes
The inner chamber of mouth wall coaxial line, drainage conduit is connected with the exhaust end of bin stock actuator base, and drainage conduit bottom side of the wall is circumferentially arranged
There are some relief holes and adjacent relief hole is distributed in uniform intervals, ring packing block is provided with above relief hole and annular is close
Seal block and drainage conduit coaxial, ring packing block is matched with extrusion outer wall inner chamber top and sealed and ring packing block can be along crowded
The axis movement of outer wall is exported, drainage conduit lower end is connected with controlling organization and controlling organization is accommodated in ring packing block and extrusion
The cavity of mouth outer wall formation, described controlling organization includes limit material block, limits material block coaxially connected in the lower end of drainage conduit and limit
Expect that block is round table-like in coaxial pair, limit material block is first gradually increased by top to bottom round platform radius to be gradually reduced and limit under material block again
The round platform bus in portion is parallel with the bus of extrusion outer wall, is provided with some material guide holes on limit material block, described material guide hole includes
Some first material guide holes, the second material guide hole, the first material guide hole are arranged at the round platform on limit material block top, and the first material guide hole can pass through ring
The cavity that shape sealing block is formed with extrusion outer wall is connected with being arranged at the relief hole of drainage conduit bottom, and the second material guide hole is same
Axle is arranged at the bottom of limit material block bottom round platform and the second material guide hole is connected with the first material guide hole, and the bottom of extrusion outer wall is set
It is equipped with extrusion and extrusion is connected with the inner chamber of extrusion outer wall, extrusion and the second material guide hole is coaxial and extrusion half
Footpath is matched with limit material block bottom round platform radius and the diameter of the second material guide hole is less than extrusion diameter, and drainage conduit middle part, which is provided with, draws
Mechanism is led, the leading end of guide mechanism and the output end of drive mechanism connect and drainage conduit can be driven to be transported along own axes direction
Dynamic, guide mechanism can be used for guiding drainage conduit and draw to limit to expect that central axial direction of the block along extrusion outer wall is moved, and can be achieved
The adjustment of extrusion opening of external wall size.
The further improvement of above-mentioned technical proposal.
Described guide mechanism includes being arranged at the shifting block of discharge wall portion, shifting block set along drainage conduit axisymmetrical and
The output end connection of radial distribution of the axis of shifting block along drainage conduit, shifting block and drive mechanism；The output end of drive mechanism
Shifting block can be promoted and drainage conduit is drawn and moved along own axes, can make limit material block bottom round platform with extrusion outer wall by matching status
Disengaged position is converted to, or limit material block bottom round platform is converted to matching status by disengaged position with extrusion outer wall.
The further improvement of above-mentioned technical proposal.
Described drive mechanism includes motor, bootstrap block, and the output shaft end connection bootstrap block of motor simultaneously can drive bootstrap block
Moved along perpendicular to the direction of arrangement tube hub axis, the shifting block that arrangement wall portion is provided with and be installed on bootstrap block matches
Guide rail, shifting block can be promoted in the translation motion of bootstrap block and arrangement pipe is drawn and moved along its center axis, drainage conduit is moved through
Driving is connected thereto between axis direction of the limit material block along drainage conduit move and adjust between limit material block and extrusion outer wall in journey
Gap.
The further improvement of above-mentioned technical proposal.
The first escape groove passed through for drainage conduit, and the first escape groove depth direction center are further opened with bootstrap block
The big face of line vertical guide block, the length direction center line of the first escape groove is vertical with the axis of drainage conduit, the first escape groove two
Side is provided with guide rail and guide rail depth direction central axis is in drainage conduit axis, guide rail be inclined to set and with shifting block phase
Match somebody with somebody, and bootstrap block along the first escape groove length direction move when, guide rail can promote shifting block and draw drainage conduit along its axis direction
Motion, the output shaft of motor is connected with bootstrap block and motor can provide revolving force driving bootstrap block translation and the translation of bootstrap block
Direction vertical guide rail depth direction center line.
The further improvement of above-mentioned technical proposal.
The second escape groove is further opened with bootstrap block, the second escape groove depth direction center line is respectively perpendicular the big of bootstrap block
Face, the length direction center line of the first escape groove and the second escape groove length direction centerline collineation/parallel, it is connected to motor defeated
The screw mandrel of shaft and coaxial line is extended in the second escape groove, and the central axial direction of screw mandrel and the second escape groove
Length direction it is parallel, screw mandrel and be arranged at bootstrap block screw coordinate, screw mandrel receive motor provide revolving force simultaneously will rotation
Power is transferred to bootstrap block, and promotes bootstrap block to be moved along the axis direction perpendicular to drainage conduit.
The further improvement of above-mentioned technical proposal.
Drainage conduit is socketed on outside heating arrangements and the consumptive material in drainage conduit can be heated, described heating arrangements bag
Include housing, housing is provided with and can store drainage conduit, the inner chamber of bootstrap block and housing cavity and be provided with along discharge tube axis direction
Thermal source.
Compared with prior art, the progress of acquirement and advantage are a kind of dual-caliber of the present invention, variable-flow to the present invention
Port radius are adjustable, extrude the adjustable function of flow with extruding for formula 3D printer extrusion；Translated by motor control bootstrap block
And along the first escape groove length direction and drainage conduit relative displacement, drainage conduit edge occur for bootstrap block in bootstrap block translation motion
Connected limit material block is driven to be moved to the direction away from extrusion outer wall in own axes motion process, limit material block is remote
During extrusion outer wall, extrusion radius is changed into the extrusion port radius of extrusion outer wall from the second guide pore radius, is realized crowded
Go out radius increase, the function of extrusion capacity increase.
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 overall structure diagram of the present invention.
Fig. 2 is first state diagrammatic cross-section of the present invention.
Fig. 3 is the second state diagrammatic cross-section of the invention.
Fig. 4 is material guide mechanism schematic diagram of the present invention.
Fig. 5 is drive mechanism schematic diagram of the present invention.
Fig. 6 is drive mechanism schematic diagram of the present invention.
The label meaning of each in figure is：10. material guide mechanism, 11. extrusion outer walls, 12. drainage conduits, 13. ring packing blocks,
14. limit material block, 15. shifting blocks, 16. threaded connectors, 20. drive mechanisms, 21. motors, 22. bootstrap blocks, 30. heating arrangements, 40.
Bin stock mechanism.
Embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, those of ordinary skill in the art are not under the premise of creative work is made, the every other reality obtained
Example is applied, the scope of the present invention is belonged to.
Referring to accompanying drawing 1, a kind of dual-caliber of the invention, variable-flow formula 3D printer extrusion include material guide mechanism 10, driven
Motivation structure 20, heating arrangements 30, bin stock mechanism 40, bin stock mechanism 40 are provided with inner chamber and inner chamber and stored for printing workpiece
Consumptive material, the exhaust end of the bottom of bin stock mechanism 40 is connected with the feed end on the top of material guide mechanism 10, and described material guide mechanism 10 is used
Extruded in by consumptive material by bin stock mechanism 40 to the print job face below the exhaust end of material guide mechanism 10, in material guide mechanism 10
Portion sets the heating arrangements 30 for being provided with the required thermal source of consumptive material melting, and material guide mechanism 10 also includes controlling organization, guide mechanism, institute
State controlling organization and be installed on the bottom of material guide mechanism 10 and extrusion bore, extrusion flow available for control consumptive material, it is described
Guide mechanism is arranged at the middle part of material guide mechanism 10, and the leading end of guide mechanism is connected and led to the output end of drive mechanism 20
The output end of mechanism of overdriving 20 can drive the leading end of guide mechanism to be subjected to displacement on guide direction.
More perfect, described consumptive material can be in bond plastic, photosensitive natural gum, metal dust, ceramics, edible oil and fat
It is any one or more.
More excellent, referring to accompanying drawing 2-4, described material guide mechanism 10 is included outside extrusion outer wall 11, drainage conduit 12, extrusion
Wall 11 is tapered and is provided with inner chamber with the coaxial line of extrusion outer wall 11, drainage conduit 12 and the discharge of the bottom of bin stock mechanism 40
End connection, the bottom side of the wall of drainage conduit 12 is circumferentially arranged some relief holes and adjacent relief hole is distributed in uniform intervals, arranges
Ring packing block 13 is provided with above material hole and ring packing block 13 and drainage conduit 12 are coaxial, ring packing block 13 and extrusion
The inner chamber top of outer wall 11 matches and sealed and ring packing block 13 can be moved along the axis of extrusion outer wall 11, under drainage conduit 12
End is connected with controlling organization and controlling organization is accommodated in ring packing block 13 and the cavity of the formation of extrusion outer wall 11, described
Controlling organization includes limit material block 14, and limit material block 14 is coaxially connected in the lower end of drainage conduit 12 and to limit material block 14 in coaxial double round platforms
Shape, limit material block 14 is first gradually increased the round platform bus for being gradually reduced and limiting material block 14 bottom again by top to bottom round platform radius
It is parallel with the bus of extrusion outer wall 11, some material guide holes are provided with limit material block 14, described material guide hole includes some first
Material guide hole, the second material guide hole, the first material guide hole are arranged at the round platform on limit material block 14 top, and the first material guide hole can pass through ring packing
The cavity that block 13 is formed with extrusion outer wall 11 matches with being arranged at the relief hole of the bottom of drainage conduit 12, and the second material guide hole is same
Axle is arranged at the bottom of the limit material bottom round platform of block 14 and the second material guide hole is connected with the first material guide hole, the bottom of extrusion outer wall 11
Portion is provided with extrusion and extrusion is connected with the inner chamber of extrusion outer wall 11, and extrusion and the second material guide hole are coaxial and squeeze
Exit radius is matched with the limit material bottom round platform radius of block 14 and the diameter of the second material guide hole is less than in extrusion diameter, drainage conduit 12
Portion is provided with guide mechanism, and the leading end of guide mechanism is connected with the output end of drive mechanism 20 and can drive the edge of drainage conduit 12
Own axes direction is moved, and guide mechanism can be used for guiding drainage conduit 12 and draw center of the limit material block 14 along extrusion outer wall 11
Axis direction is moved, and the adjustment of the opening size of extrusion outer wall 11 can be achieved.
More excellent, adjacent first material guide hole is distributed in uniform intervals and the axis of the first material guide hole expects block 14 perpendicular to limit
The side of upper round platform.
More specifically, described guide mechanism includes being arranged at the shifting block 15 of the wall portion of drainage conduit 12, and shifting block 15 is along discharge
Radial distribution of the axis of the setting of the axisymmetrical of pipe 12 and shifting block 15 along drainage conduit 12, shifting block 15 and the output of drive mechanism 20
End is connected；Drainage conduit 12 along own axes move when, can make the bottom round platform of limit material block 14 with extrusion outer wall 11 by matching shape
State is converted to disengaged position, or the bottom round platform of limit material block 14 is converted to matching status by disengaged position with extrusion outer wall 11.
More excellent, described drive mechanism 20, which includes being respectively arranged with first on motor 21, bootstrap block 22, bootstrap block 22, keeps away
Groove, the second escape groove and the first escape groove, the second escape groove depth direction center line is allowed to be respectively perpendicular the big face of bootstrap block 22,
The length direction center line of first escape groove is vertical with the axis of drainage conduit 12 and length direction center line of the first escape groove
With the second escape groove length direction centerline collineation/parallel, the first escape groove is available for drainage conduit 12 to pass through and bootstrap block 22 can
Moved along the first escape groove length direction, the first escape groove both sides be provided with guide rail and guide rail depth direction central axis in
The axis of drainage conduit 12, guide rail is inclined to set and matched with shifting block 15, and bootstrap block 22 is moved along the first escape groove length direction
When dynamic, guide rail can promote shifting block 15 and draw drainage conduit 12 and be moved along its axis direction, output shaft and the bootstrap block 22 of motor 21
Connect and motor can provide revolving force driving bootstrap block 22 translate and bootstrap block 22 translation direction vertical guide rail depth direction
Center line.
It is more perfect, it is socketed on drainage conduit 12 outside heating arrangements 30 and the consumptive material in drainage conduit 12 can be added
Heat, described heating arrangements 30 include housing, and housing, which is provided with, can store in drainage conduit 12, the inner chamber of bootstrap block 22 and housing
Chamber is provided with thermal source along the axis direction of drainage conduit 22.
More excellent, described bin stock mechanism 40 includes that the material-storing chamber of consumptive material can be stored, if material-storing chamber wall coaxial is provided with
Do annular fin and adjacent annular fin is distributed in uniform intervals；Consumptive material in material-storing chamber can be entered using the layout type
Row radiating, prevents consumptive material in material-storing chamber by the heat transfer of drainage conduit 12 and causes temperature is too high to cause damaging for consumptive material in material-storing chamber
Bad, softening.
During work, under the first working condition, shifting block 15 is located at guide rail close to one end of the second escape groove, this time limit material block 14
The discharge radius between bottom round platform and extrusion outer wall 11 with the gap for being available for consumptive material to pass through and extrusion is extrusion
Radius, the consumptive material that heating arrangements 30 are worked and thermal source is transported to drainage conduit 12 is heated, and the consumptive material after heating is by drainage conduit
12 bottom discharging holes are expelled to ring packing block 13 and extrusion outer wall 11 and the cavity of the top round platform formation of limit material block 14, empty
The consumptive material of intracavitary expects that the material guide hole of block 14 is squeezed by the space between extrusion outer wall 11 and the limit material bottom round platform of block 14, limit respectively
It is depressed into extrusion and is extruded by extrusion to print job face.
Under second working condition, when printing precision needs raising, consumptive material extrusion radius to need to reduce, motor 21 works,
The output shaft of motor 21 drive bootstrap block 22 along the first escape groove length direction center line to being moved close to the direction of motor 21 and
Second escape groove is available for output shaft to extend along the second escape groove axis to close to first escape groove one end, and bootstrap block 22 is kept away along first
Allow in the motion process of slot length direction with drainage conduit 12 and occur relative displacement, the guide rail for being arranged at bootstrap block 22 applies to shifting block 15
The active force of the vertical guide rail length direction and active force points to extrusion outer wall 11, work of the shifting block 15 in guide rail by shifting block 15
Moved under firmly along the axis of drainage conduit 12 to the direction of extrusion outer wall 11, connected discharge is driven in the motion process of shifting block 15
Pipe 12 is along own axes to being moved close to extrusion direction and driving limit material block 14 to be moved to extrusion direction, when limit expects block 14
When moving at extrusion, the bottom round platform of limit material block 14 is matched and bottom round platform bottom with the side sealing of extrusion outer wall 11
Face is generally aligned in the same plane with extrusion, and now the extrusion radius of extrusion, which is limited, expects the second material guide hole half of the bottom round platform of block 14
Footpath, extrusion port radius, which reduce, to be caused under uniform pressure state, and the extrusion capacity of consumptive material reduces, and consumptive material is by bin stock mechanism 40 through drainage conduit
12 transports to ring packing block 13 and extrusion outer wall 11 and the cavity of the top round platform formation of limit material block 14, consumptive material enters cavity
Expect that the material guide hole of block 14 is extruded to print job face and the cooling and shaping on print job face by limit afterwards.
More perfect, extrusion outer wall 11 is connected through a screw thread part 16 and is connected with the housing of heating arrangements 30, and screw thread
Connector 16 is coaxially socketed on drainage conduit 12, and heating arrangements 30 are provided with mounting hole and mounting hole and drainage conduit 12 are coaxial, spiral shell
Line connector 16 includes the installation of upper threaded connector, lower threaded connector and upper threaded connector and the housing of heating arrangements 30
Hole matching, lower threaded connector are matched with extrusion outer wall 11 away from extrusion one end；It is socketed on the upper spiral shell outside drainage conduit 12
Line connector can play firm effect to drainage conduit 12, and avoid the bounce of the generation radial direction of drainage conduit 12, by being threaded
Connector 16 makes extrusion outer wall 11 and heating arrangements 30 fix and make drainage conduit 12 be zero in its circumferential free degree, when leading
Rail drive shifting block 15 to the bottom of bootstrap block 22 move when, be connected through a screw thread part 16 to drainage conduit 12 circumferential direction carry out freedom
The restriction of degree, it is ensured that be only circumferentially subjected to displacement along itself when drainage conduit 12 is driven by shifting block 15, and then limit the bottom of material block 14
Round platform can be matched with the conical surface of extrusion outer wall, it is ensured that the stable operation of equipment.
A kind of Method of printing of dual-caliber, variable-flow formula 3D printer, its step includes：
S1. limit material block 14 is the second material guide hole half in matching sealing state and extruding radius with the inwall of extrusion outer wall 11
Footpath, switches on power, and the consumptive material in drainage conduit 12 is heated to molten state, the consumptive material of molten state by the thermal source in heating arrangements 30
Flows from axis from the discharge of bin stock mechanism 40 exhaust end along drainage conduit 12 to drainage conduit 12 and by the bottom of drainage conduit 12
Relief hole be discharged into extrusion outer wall 11, ring packing block 13 and limit material block 14 formation cavity in；
S2. in the lower end of drainage conduit and material block is limited in coaxial double round table-like, limit material block is by top because limit material block is coaxially connected
First gradually increase the bus of the round platform bus and extrusion outer wall that are gradually reduced and limit material block bottom again to bottom round platform radius
It is parallel, some material guide holes are provided with limit material block, described material guide hole includes some first material guide holes, the second material guide hole, first
Material guide hole is arranged at the round platform on limit material block top, and the first material guide hole can pass through ring packing block and the cavity of extrusion outer wall formation
It is connected with the relief hole that is arranged at drainage conduit bottom, the second material guide hole is coaxially disposed in the bottom of limit material block bottom round platform simultaneously
And second material guide hole connected with the first material guide hole；So that positioned at extrusion outer wall 11, ring packing block 13 and the limit material shape of block 14
Extrusion outer wall 11 is squeezed out by the second material guide hole into the molten state consumptive material in cavity；
S3. when printing precision requires reduction or extrusion radius needs increase, motor 21 works, the output shaft driving of motor 21
Connected bootstrap block 22 is moved along the central axial direction perpendicular to drainage conduit 12, is provided with and is installed on bootstrap block 22
Shifting block 15 can be promoted in the guide rail that the shifting block 15 of the arrangement wall portion of pipe 12 matches, the translation motion of bootstrap block 22 and arrangement pipe is drawn
12 move upwards along its center axis, and driving is connected thereto axis of the limit material block 14 along drainage conduit 12 in the motion process of drainage conduit 12
Moved to the direction away from extrusion outer wall 11 and make to produce gap between limit material block 14 and extrusion outer wall 11, extrusion radius is
The extrusion port radius of extrusion outer wall 11；In extrusion outer wall 11, ring packing block 13 and the limit material formation cavity of block 14
Molten state consumptive material respectively pass through limit material block 14 and extrusion outer wall 11 between gap, limit material block 14 the second material guide hole extrude
Extruded to extrusion and by extrusion to print job face.
More excellent, in above-mentioned steps S1, the annular fin of bin stock cavity outer wall can radiate to consumptive material in material-storing chamber,
Consumptive material in material-storing chamber is prevented by the heat transfer of drainage conduit 12 and causes temperature is too high to cause the damaging of consumptive material in material-storing chamber, soften.
It is more perfect, in above-mentioned steps S3, when guide rail driving shifting block 15 is moved and the row of driving to the bottom of bootstrap block 22
Expects pipe 12 to extrusion outer wall 11 move when, be connected because extrusion outer wall is connected through a screw thread part with heating arrangements housing, and
And threaded connector is coaxially socketed on drainage conduit, threaded connector includes upper threaded connector, lower threaded connector and upper spiral shell
Line connector is matched with the mounting hole of heating arrangements housing, lower threaded connector and extrusion outer wall are away from extrusion one end
Match somebody with somebody；Threaded connector 16 plays firm effect to drainage conduit 12, and avoids the bounce of the generation radial direction of drainage conduit 12；Pass through screw thread
Connector 16 carries out the restriction of the free degree to drainage conduit 12 in circumferential direction, it is ensured that edge when drainage conduit 12 is driven by shifting block 15
Itself is circumferentially subjected to displacement.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention；
A variety of modifications to these embodiments will be apparent for those skilled in the art, defined in the present invention
General Principle can not depart from the present invention spirit or scope in the case of, realize in other embodiments.Therefore, originally
Invention will not be defined to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty
Consistent most wide scope.
Claims (3)
1. a kind of dual-caliber, variable-flow formula 3D printer extrusion, it is characterised in that it includes material guide mechanism, drive mechanism, added
Heat engine structure, bin stock mechanism, bin stock mechanism is provided with inner chamber and inner chamber stores consumptive material for printing workpiece, bin stock mechanism bottom
The exhaust end in portion is connected with the feed end on material guide mechanism top, described material guide mechanism be used for by consumptive material by bin stock mechanism extrude to
Print job face below material guide mechanism exhaust end, the middle part of material guide mechanism, which is set, is provided with the required thermal source of consumptive material melting
Heating arrangements, material guide mechanism also include controlling organization, guide mechanism, the controlling organization be installed on the bottom of material guide mechanism and
Extrusion bore, extrusion flow available for control consumptive material, described guide mechanism are arranged at the middle part of material guide mechanism, guide mechanism
Leading end and drive mechanism output end connect and the leading end of guide mechanism can be driven by the output end of drive mechanism
It is subjected to displacement on guide direction.
2. a kind of dual-caliber according to claim 1, variable-flow formula 3D printer extrusion, it is characterised in that described
Material guide mechanism includes extrusion outer wall, drainage conduit, and extrusion outer wall is tapered and is provided with and extrusion wall coaxial line
Inner chamber, drainage conduit is connected with the exhaust end of bin stock actuator base, and drainage conduit bottom side of the wall is circumferentially arranged to have some relief holes simultaneously
And adjacent relief hole is distributed in uniform intervals, it is provided with ring packing block above relief hole and ring packing block and drainage conduit is same
Axle, ring packing block matched with extrusion outer wall inner chamber top and seal and ring packing block can along extrusion outer wall axis
Mobile, drainage conduit lower end is connected with controlling organization and controlling organization is accommodated in ring packing block and the sky of extrusion outer wall formation
Chamber, described controlling organization includes limit material block, and limit material block is coaxially connected in the lower end of drainage conduit and to limit material block in coaxial double circles
Mesa-shaped, limit material block first gradually increased by top to bottom round platform radius be gradually reduced and limit again the round platform bus of material block bottom with
The bus of extrusion outer wall is parallel, and some material guide holes are provided with limit material block, described material guide hole include some first material guide holes,
Second material guide hole, the first material guide hole is arranged at the round platform on limit material block top, and the first material guide hole can pass through ring packing block and extrusion
The cavity of mouth outer wall formation is connected with being arranged at the relief hole of drainage conduit bottom, and the second material guide hole is coaxially disposed expects block in limit
The bottom of bottom round platform and the second material guide hole is connected with the first material guide hole, the bottom of extrusion outer wall be provided with extrusion and
Extrusion is connected with the inner chamber of extrusion outer wall, and extrusion and the second material guide hole are coaxial and extrude port radius and limit material block bottom
Round platform radius is matched and the diameter of the second material guide hole is less than extrusion diameter, and drainage conduit middle part is provided with guide mechanism, vectoring aircraft
The leading end of structure and the output end of drive mechanism connect and drainage conduit can be driven to be moved along own axes direction, and guide mechanism can
Moved for guiding drainage conduit and drawing central axial direction of the limit material block along extrusion outer wall, extrusion opening of external wall can be achieved
The adjustment of size.
3. a kind of dual-caliber according to claim 2, variable-flow formula 3D printer extrusion, it is characterised in that described
Guide mechanism includes the shifting block for being arranged at discharge wall portion, and shifting block is set along drainage conduit axisymmetrical and the axis edge of shifting block is arranged
The output end connection of the radial distribution of expects pipe, shifting block and drive mechanism；The output end of drive mechanism can promote shifting block and lead
Ejectment expects pipe is moved along own axes, and limit material block bottom round platform can be made to be converted to disengaging shape by matching status with extrusion outer wall
State, or limit material block bottom round platform is converted to matching status by disengaged position with extrusion outer wall.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810447433.XA CN108556351A (en) | 2017-07-27 | 2017-07-27 | The photosensitive natural gum accumulation adjustable stereo shaping printer of precision |
| CN201810447451.8A CN108501372A (en) | 2017-07-27 | 2017-07-27 | Ceramics accumulate the molding adjustable stereo shaping printer of accuracy |
| CN201710626528.3A CN107160689B (en) | 2017-07-27 | 2017-07-27 | Metal powder increases the variable-flow formula stereo shaping printer of material accumulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626528.3A CN107160689B (en) | 2017-07-27 | 2017-07-27 | Metal powder increases the variable-flow formula stereo shaping printer of material accumulation |
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| CN201810447451.8A Division CN108501372A (en) | 2017-07-27 | 2017-07-27 | Ceramics accumulate the molding adjustable stereo shaping printer of accuracy |
| CN201810447433.XA Division CN108556351A (en) | 2017-07-27 | 2017-07-27 | The photosensitive natural gum accumulation adjustable stereo shaping printer of precision |
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| CN107160689A true CN107160689A (en) | 2017-09-15 |
| CN107160689B CN107160689B (en) | 2018-09-28 |
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| CN201810447433.XA Withdrawn CN108556351A (en) | 2017-07-27 | 2017-07-27 | The photosensitive natural gum accumulation adjustable stereo shaping printer of precision |
| CN201710626528.3A Active CN107160689B (en) | 2017-07-27 | 2017-07-27 | Metal powder increases the variable-flow formula stereo shaping printer of material accumulation |
| CN201810447451.8A Withdrawn CN108501372A (en) | 2017-07-27 | 2017-07-27 | Ceramics accumulate the molding adjustable stereo shaping printer of accuracy |
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| CN201810447433.XA Withdrawn CN108556351A (en) | 2017-07-27 | 2017-07-27 | The photosensitive natural gum accumulation adjustable stereo shaping printer of precision |
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| CN201810447451.8A Withdrawn CN108501372A (en) | 2017-07-27 | 2017-07-27 | Ceramics accumulate the molding adjustable stereo shaping printer of accuracy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019019882A1 (en) * | 2017-07-27 | 2019-01-31 | 苏艳敏 | Double-aperture 3d printer nozzle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6901184B2 (en) * | 2018-10-31 | 2021-07-14 | ▲衛▼▲東▼ 黄 | 3D printing device and its control method |
| CN111113888B (en) * | 2018-10-31 | 2021-10-19 | 黄卫东 | Apparatus for 3D printing and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204367422U (en) * | 2014-12-10 | 2015-06-03 | 南京煜宸激光科技有限公司 | A kind of printing head assembly printed for 3D |
| 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 |
-
2017
- 2017-07-27 CN CN201810447433.XA patent/CN108556351A/en not_active Withdrawn
- 2017-07-27 CN CN201710626528.3A patent/CN107160689B/en active Active
- 2017-07-27 CN CN201810447451.8A patent/CN108501372A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204367422U (en) * | 2014-12-10 | 2015-06-03 | 南京煜宸激光科技有限公司 | A kind of printing head assembly printed for 3D |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019019882A1 (en) * | 2017-07-27 | 2019-01-31 | 苏艳敏 | Double-aperture 3d printer nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108556351A (en) | 2018-09-21 |
| CN107160689B (en) | 2018-09-28 |
| CN108501372A (en) | 2018-09-07 |
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