CN108215166A - A kind of practical three-dimensional printer - Google Patents
A kind of practical three-dimensional printer Download PDFInfo
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- CN108215166A CN108215166A CN201810109780.1A CN201810109780A CN108215166A CN 108215166 A CN108215166 A CN 108215166A CN 201810109780 A CN201810109780 A CN 201810109780A CN 108215166 A CN108215166 A CN 108215166A
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- Prior art keywords
- conveying
- section
- delivery pipe
- raw material
- channel
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Classifications
-
- 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
- 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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- 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
-
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
-
- 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 present invention proposes a kind of practical three-dimensional printer,Break through the structural form of conventional three-dimensional printer,Raw material of the heating element between conveying housing and delivery pipe is further heated simultaneously,The temperature of the raw material on the outside of delivery pipe and mobility is made to be above the temperature and mobility of the raw material on the inside of delivery pipe,I.e. the temperature of the raw material of bottom discharge channel outflow and mobility are above the temperature and mobility of the raw material of third channel outflow,In print procedure,The printable layer of heating inclined-plane and lower floor slightly cooled and solidified contacts,Can melt the upper surface of lower floor's printable layer,Between lower floor's printable layer that the raw material and surface that the raw material pad of subsequent bottom discharge channel outflow is flowed out in third channel melt,The raw material of bottom discharge channel outflow plays the role of glued,The raw material of third channel outflow and lower floor's printable layer natural fusion is integral,Make to be not in apparent composition surface between upper strata printable layer and lower floor's printable layer,Engagement between adjacent print layer is more secured.
Description
Present patent application is the divisional application of Chinese Patent Application No. 201710474011.7, the application number of original application
It is 201710474011.7, the applying date is on 06 21st, 2017, a kind of entitled highly practical three-dimensional printer.
Technical field
The present invention relates to 3 D-printing machinery fields, and in particular to a kind of practical three-dimensional printer.
Background technology
It is rapid shaping (Rapid that three-dimensional printer, which is also referred to as 3 D Printer (3D Printer, abbreviation 3DP),
Prototyping, RP) a kind of technique, be layered by the way of layer upon layer and produce threedimensional model, operational process is similar
In conventional printer, only conventional printer is the plane drawing that two dimension is formed in ink printed to papery, and three-dimensional is beaten
Print machine is that the materials such as plastic wire, land plaster, metal powder of liquid photosensitive resin material, melting by jet binder or are squeezed
The modes such as go out and realize that layer upon layer is superimposed to form 3D solid.The structure of unit printer has been known, such as Chinese invention patent
201310559350.7 a kind of fusion sediment 3 D-printing nozzle and printer are disclosed, the spray of one of which fusion sediment 3 D-printing
Head, including spiro rod machine tube, nozzle, screw shaft, wherein the nozzle is mounted on spiro rod machine tube lower part, screw shaft is installed on screw machine
In cylinder, the upper end of screw shaft can be provided with thread groove, the stack shell of spiro rod machine tube by shaft coupling and motor axis connection on lower semisection axis
Top is provided with branch pipe, and for being installed into the plasticizing pipe of silk, the periphery of the spiro rod machine tube and branch pipe is equipped with heating unit.It is described
Branch pipe is three, is uniformly arranged in the stack shell top of spiro rod machine tube.The spiro rod machine tube lower part is provided with external screw thread, and nozzle is provided with
With the matched internal thread of spiro rod machine tube lower external thread, nozzle is connect with spiro rod machine tube by thread fitting.The screw machine
Thrust ball bearing and bearing (ball) cover are installed in cylinder top, screw shaft passes through thrust ball bearing and bearing (ball) cover.Heating dress
It puts and is made of heating mantle and thermistor, the heat that heating mantle generates melts silk, thermistor feedback temperature information, entirely
Heating unit is closed loop thermal control system.The through-hole or screw thread for being connected with printer are offered at the top of spiro rod machine tube
Hole.A kind of fusion sediment three-dimensional printer, including above-described fusion sediment 3 D-printing nozzle.
The invention can generate stable motive force, effective that melting silk is pushed to be squeezed out from nozzle, but actually make
With in the process, the invention is as other three-dimensional printers in the market, and in the successively print procedure of accumulation raw material, levels are beaten
The accumulation existence time for printing layer is poor, when upper strata, printable layer is layered on lower floor's printable layer, lower floor's printable layer slightly cooled and solidified, on
Layer printable layer be only to be layered on lower floor's printable layer, there are apparent composition surface, this composition surface be by upper and lower printable layer fusion not
Caused by completely, so 3 D-printing finished product globality poor, is easily broken by composition surface, become the important of 3 D-printing finished product
One of defect, and the smooth degree of transferring raw material is to be improved.
In consideration of it, inventor furthers investigate the above problem, there is this case generation then.
Invention content
The purpose of the present invention is to provide a kind of integral type engagements that can carry out melting completely formula to adjacent printable layer, beat
It is strong and more secured to be printed as product globality, and material flow is smooth, highly practical practical three-dimensional printer.
In order to achieve the above object, the present invention uses such technical solution：
A kind of practical three-dimensional printer, the print head including printer main body and on printer main body；It is described to beat
It prints head and includes conveying housing setting up and down, the delivery pipe being placed in conveying housing, the axis being placed in top in delivery pipe,
The conveying lever being placed in conveying housing and delivery pipe is below, conveying lever upper end is connected to and upward sliding runs through the axis
Core bar and be connected to the discharging gate of conveying lever lower end；The conveying housing, delivery pipe, axis, conveying lever and core bar are same
Axis is set；
The conveying housing includes the first conveying shell section in top, the second conveying shell section being below, Yi Jilian
The third conveying shell section for being connected between the first conveying shell section and the second conveying shell section and being from top to bottom tapered；Described second is defeated
Shell section is sent to have and slides through first passage for conveying lever matching；
The delivery pipe includes in top with the described first corresponding first transportation section of conveying shell section and with described the
The second transportation section that the medial surface of three conveying shell sections matches；The medial surface of first transportation section is formed with spiral from top to bottom
First conveying screw thread of extension, the lateral surface of first transportation section are formed with the second conveying spiral shell from top to bottom extended spirally
Line；The upper end of the delivery pipe be equipped with driving delivery pipe rotation the first device of rotation driving and driving delivery pipe lifting the
One lifting drive；The lower end of second transportation section is formed with the first port slid through for conveying lever matching；
It is opposite with the delivery pipe rotation direction around core bar progress that the upper end of the axis is equipped with driving axis
Second device of rotation driving of rotation；
It is formed with the coaxial material guide hole extended up and down in the conveying lever, the upper end of the material guide hole is equipped multiple under
The charging hole extended obliquely to the circumferential surface of the conveying lever between supreme, multiple charging hole uniform rings are around the material guide hole
Axis distribution；It is corresponding between each charging hole and the top and bottom of first port；
The upper end of the core bar is equipped with the second lifting drive of driving core bar lifting；
The discharging gate includes the first discharging section being connect in top with the lower end of the described second conveying shell section and is in
Lower section and the second discharging section that extension is from top to bottom gradually tilted to the conveying housing side；The conveying housing has and institute
The lower end of the second discharging section is stated towards corresponding first side and the second side opposite with the first side, first discharging section has
The second channel connected with the material guide hole lower end, second discharging section have the third connected with the second channel lower end
Channel, second discharging section include the first sloped sidewall of the first side of the closer conveying housing and closer conveying housing
Second sloped sidewall of the second side；Second sloped sidewall has the ramp for being in top and the lower inclined plane being below,
The distance between the ramp and lower inclined plane from top to bottom taper into；
The second conveying shell section has with the first side wall of the first sloped sidewall homonymy and is tilted with described second
The second sidewall of side wall homonymy, the second sidewall include epimere corresponding with the conveying lever and with second inclined side
The corresponding hypomere of wall；The first passage is formed with the guide channel from top to bottom extended in the epimere and lower section；It is described
Guide channel includes corresponding with the conveying lever and the first discharging section in top and conveys what shell section connected with the third
It top discharge channel and is below corresponding with second discharging section and from top to bottom gradually along the lower inclined plane towards described
The export direction of triple channel tilts the bottom discharge channel of extension；
The raw material being equipped between the conveying housing and the delivery pipe in the side wall of the conveying housing heats
The temperature of the raw material between conveying housing and delivery pipe and mobility is made to be all higher than the temperature and mobility of the raw material in delivery pipe
Heating element；The heating element includes conveying corresponding first bringing-up section of shell section with described first, defeated with the third
It send shell section corresponding second bringing-up section, third bringing-up section corresponding with the top discharge channel and leads to the bottom discharge
Corresponding 4th bringing-up section in road；The lower end of the hypomere is formed with from top to bottom gradually towards the exporter of the bottom discharge channel
To the heating inclined-plane for tilting extension.
The upper end of second sloped sidewall is resisted against the lower end of the conveying lever, and the lower end of the conveying lever forms oriented
The guiding extension that the ramp extension is oriented to the raw material in the material guide hole towards the third channel.
The third channel, the second sloped sidewall, bottom discharge channel and the angle of heating inclined-plane and horizontal plane become smaller successively,
And the angle of the third channel and horizontal plane is 15-30 °, the angle of the heating inclined-plane and horizontal plane is 5-15 °.
The first heat insulation layer is equipped in the side wall of the delivery pipe, the second insulation is covered with outside the conveying housing
Layer.
The print head further includes to connect with the conveying housing and the second heat insulation layer in top to be melted for storing
Change the material-storing box of raw material.
Third heat insulation layer is equipped in the side wall of the material-storing box.
The top of the material-storing box is equipped with connecting plate, and the upper end of the delivery pipe, which is equipped with to upwardly extend, is through to the connection
Transmission segment above plate, first device of rotation driving and the first lifting drive are by the transmission segment to the conveying
Pipe is driven；The upper end of the axis, which is equipped with, extends upwardly to the first drive link of the connecting plate lower surface, and described second
Device of rotation driving is driven the axis by first drive link；The upper end of the core bar is equipped with to upwardly extend and pass through
It wears to the second drive link above the connecting plate, second lifting drive is by second drive link to the core
Bar is driven.
First device of rotation driving and the second device of rotation driving are that output terminal is set on the connecting plate downward
The motor on surface, first lifting drive and the second lifting drive are that output terminal is set on the connecting plate upward
The motor of upper surface；First device of rotation driving is fixed on by fixed component on the connecting plate；
The output terminal of first device of rotation driving has been fixedly and coaxially connected first gear, outside the upper end of the transmission segment
Circumferential surface is formed with and the matched first tooth section of the first gear；The output terminal of second device of rotation driving is coaxially fixed
Second gear is connected with, the upper end circumferential surface of first drive link is formed with and the matched second tooth section of the second gear；
The output terminal of first lifting drive carries out lifting biography by first level driver plate to the transmission segment
Dynamic, the output terminal of first lifting drive has been fixedly and coaxially connected the first drive screw, the first level driver plate
Be formed with matched first threaded hole of first drive screw, be formed on the inside of the upper end of the transmission segment for described the
The annular groove that one horizontal conveyor plate stretches into；The output terminal of second lifting drive is by the second horizontal conveyor plate to institute
It states the second drive link and carries out lifting and driving, the output terminal of second lifting drive has been fixedly and coaxially connected the second transmission spiral shell
Bar, the second horizontal conveyor plate are formed with and matched second threaded hole of second drive screw, second transmission
The upper end circumferential surface of bar is formed with the card slot stretched into for the second horizontal conveyor plate.
After adopting the above technical scheme, the practical three-dimensional printer of the present invention, the construction of breakthrough conventional three-dimensional printer
Form, in practical work process, feeding device by raw material supply to heating box, heating box by raw material heating and melting into fluid,
The raw material of thawing is entered in print head, and to convey front of the second side as walking in a horizontal state of housing, print head is in movement device
Drive under third channel and bottom discharge channel is made to carry out 3 D-printing on print platform backwards.Specifically, shape is not being printed
State, the first lifting drive driving delivery pipe make downwards the lower end of the second transportation section that third is conveyed shell section and first passage
Upper port blocks, and the second lifting drive driving core bar drives the upper end that conveying lever makes downwards charging hole be in the first port
Lower section and blocked charging hole, start printing when, under the driving of the first lifting drive, delivery pipe rise, second
The lower end of transportation section does not convey third shell section and the upper port of first passage blocks, and core bar is made to drive conveying lever climb more
Greatly, charging hole is made to be higher than the upper end of the first port, the driving delivery pipe rotation of the first device of rotation driving is by the raw material of thawing from defeated
The inside conveying downwards of pipe is sent to pass sequentially through charging hole, material guide hole and third channel outflow, while by the raw material of thawing from conveying
The conveying downwards of the outside of pipe passes sequentially through third conveying shell section, top discharge channel and the outflow of bottom discharge channel, and pads and lead in third
Below the raw material of road outflow；Heating element heats conveying housing, makes the heating inclined-plane of lower end have higher temperature, together
When heating element to conveying housing and delivery pipe between raw material further heated, make the temperature of the raw material on the outside of delivery pipe
The temperature and stream of the temperature and mobility of the raw material on the inside of delivery pipe, the i.e. raw material of bottom discharge channel outflow are above with mobility
Dynamic property is above the temperature and mobility of the raw material of third channel outflow, in print procedure, heats inclined-plane and lower floor is slightly cold
But the printable layer contact solidified, can be such that the upper surface of lower floor's printable layer melts, and the raw material pad that subsequent bottom discharge channel flows out is the
Triple channel outflow raw material and surface melt lower floor's printable layer between, bottom discharge channel outflow raw material play the role of it is glued,
The raw material of third channel outflow and lower floor's printable layer natural fusion is integral, make between upper strata printable layer and lower floor's printable layer not
It will appear apparent composition surface, the engagement between adjacent print layer is more secured, while also ensures the raw material in third channel
It is constant as properties such as the mobility of main material for forming printout, do not change the design parameters such as main material initial flow,
And then ensure that printout is less prone to deformation etc. in print procedure and influences the situation of quality；It is larger for mobility after thawing
Raw material, the present invention also only can individually rise core bar and drive conveying lever, and drive conveying downwards using the first lifting drive
Pipe makes the lower end of the second transportation section that third to be conveyed to the upper port closure of shell section and first passage, and then can only allow delivery pipe
The raw material outflow of inside does not need to the raw material on the outside of delivery pipe and the raw material in delivery pipe and the lower floor of upper surface thawing can be realized
Printable layer natural fusion is integral.Compared with prior art, practical three-dimensional printer of the invention, can be to adjacent printing
The integral type engagement of formula is melted in layer progress completely, and printout globality is strong and more secured, and material flow is smooth, practical
Property is strong.
Description of the drawings
Fig. 1 is the easy structure schematic diagram of the present invention；
Fig. 2 is the First partial broken section structure diagram of the present invention；
Fig. 3 is the use state broken section structure diagram of the present invention；
Fig. 4 is the second local broken section structure diagram of the present invention；
Fig. 5 is the partial structural diagram of the present invention.
In figure：
1- printer main body 11- print platform 12- movement device 13- heating box 14- feeding device 2- print heads
21- conveying housings 211- first conveys shell section 212- second and conveys shell section 2121- first passage 2122- the first side walls
2123- second sidewall a1- epimere a2- hypomeres a21- heating inclined-plane a3- guide channel a31- top discharge channel a32- bottom discharges are led to
Road 213- thirds conveying shell section the second heat insulation layers of 214-
22- delivery pipes 221- the first transportation section 2211- first convey the second conveying screw threads of screw thread 2212- 222- second and convey
Section 2221- the first port 223- the first device of rotation driving 2231- fixed component 2232- first gears 224- first lifts driving
Device 2241- first level driver plate 2242- the first drive screw 225- the first heat insulation layer 226- transmission segments 2261- first
Tooth section 2262- annular grooves
23- axis 231- the second device of rotation driving 2311- second gears 232- the first drive link 2321- the second tooth sections
24- conveying lever 241- material guide hole 242- charging holes 243- is oriented to extension
25- core bars 251- the second lifting drive 2511- the second horizontal conveyor plate the second drive screws of 2512- 252-
Two drive link 2521- card slots
26- discharging gates 261- the first discharging section 2611- second channels 262- the second discharging section 2621- third channels 2622-
First sloped sidewall 2623- the second sloped sidewall 26231- ramp 26232- lower inclined plane 27- heating elements 271- first is heated
The 4th bringing-up section 28- material-storing box 281- third heat insulation layers 282- of section 272- the second bringing-up section 273- third bringing-up sections 274- connect
Fishplate bar.
Specific embodiment
In order to further explain the technical solution of the present invention, it is described in detail below by specific embodiment.
A kind of practical three-dimensional printer of the present invention, as shown in Figs. 1-5, including printer main body 1 and set on printer
Print head 2 in main body 1；Printer main body 1 includes print platform 11, to print head 2 into action above print platform 11
Make the movement device 12 that drives, the heating box 13 that is heated above print platform 11 to raw material and to heating box 13 into
The feeding device 14 of row feed；Print head 2 be set on print platform 11 top connect with movement device 12 and with heating box 13
Discharge port connects；Print head 2 includes conveying housing 21 setting up and down, the delivery pipe 22 being placed in conveying housing 21, in upper
Square set is below the conveying lever 24 being placed in conveying housing 21 and delivery pipe 22, is connected in the axis 23 in delivery pipe 22
24 upper end of conveying lever and upward sliding run through the core bar 25 of axis 23 and are connected to the discharging gate 26 of 24 lower end of conveying lever；It is defeated
Housing 21, delivery pipe 22, axis 23, conveying lever 24 and core bar 25 is sent to be coaxially set；
It conveys housing 21 and includes the first conveying shell section 211 in top, the second conveying shell section 212 being below, with
And the third conveying shell section for being connected between the first conveying shell section 211 and the second conveying shell section 212 and being from top to bottom tapered
213；Second conveying shell section 212 has slides through first passage 2121 for the matching of conveying lever 24；
Delivery pipe 22 is included in top and 211 corresponding first transportation section 221 of the first conveying shell section and defeated with third
The second transportation section 222 that the medial surface of shell section 213 is sent to match；The medial surface of first transportation section 221 is formed with spiral shell from top to bottom
First conveying screw thread 2211 of rotation extension, it is defeated that the lateral surface of the first transportation section 221 is formed with second from top to bottom extended spirally
Send screw thread 2212；The upper end of delivery pipe 22 is equipped with the first device of rotation driving 223 of the driving rotation of delivery pipe 22 and drives defeated
The first lifting drive 224 that pipe 22 is sent to lift；The lower end of second transportation section 222 is formed with to slide for the matching of conveying lever 24 and wear
The first port 2221 crossed；
The upper end of axis 23 is equipped with driving axis 23 and the rotation opposite with 22 rotation direction of delivery pipe is carried out around core bar 25
The second device of rotation driving 231；In this way when delivery pipe 22 is conveyed, the rotation direction phase of axis 23 and delivery pipe 22
Instead, can make the outer surface of axis 23 that the raw material melted be driven to convey screw thread 2211 relative to delivery pipe 22 and first to generate more strongly
Relative motion, the more conducively raw material in delivery pipe 22 conveys downwards.
It is formed with the coaxial material guide hole 241 extended up and down in conveying lever 24, the upper end of material guide hole 241 is equipped multiple under
The charging hole 242 extended obliquely to the circumferential surface of conveying lever 24 between supreme, multiple 242 uniform rings of charging hole are around material guide hole 241
Axis distribution, this structure can ensure that charging hole 242 feed uniformity；The upper end of each 242 and first port 2221 of charging hole
It is corresponding between lower end；
The upper end of core bar 25 is equipped with the second lifting drive 251 that driving core bar 25 lifts；
Discharging gate 26 includes the first discharging section 261 being connect in top with the lower end of the second conveying shell section 212 and is in
Lower section and the second discharging section 262 that extension is from top to bottom gradually tilted to 21 side of conveying housing；Conveying housing 21 has and the
The lower end of two discharging sections 262 towards corresponding first side and the second side opposite with the first side, the first discharging section 261 have with
The second channel 2611 of 241 lower end of material guide hole connection, the second discharging section 262 have the third connected with 2611 lower end of second channel
Channel 2621, the second discharging section 262 include the first sloped sidewall 2622 of closer conveying housing 21 first side and closer defeated
Send the second sloped sidewall 2623 of 21 the second side of housing；Second sloped sidewall 2623 has 26231 He of ramp in top
The lower inclined plane 26232 being below, the distance between ramp 26231 and lower inclined plane 26232 from top to bottom taper into, this knot
Structure is gradually contacted and is merged with the raw material that third channel 2621 flows out convenient for the raw material of bottom discharge channel a32 outflows naturally, with reference to
Effect is more preferable, and being not likely to produce foam etc. influences the situation of product intensity；
Second conveying shell section 212 have with the first side wall 2122 of 2622 homonymy of the first sloped sidewall and with the second inclined side
The second sidewall 2123 of 2623 homonymy of wall, second sidewall 2123 include tilting with 24 corresponding epimere a1 of conveying lever and with second
2623 corresponding hypomere a2 of side wall；First passage 2121 is formed with the guide from top to bottom extended at epimere a1 and hypomere a2 and leads to
Road a3；Guide channel a3 includes corresponding in 24 and first discharging section 261 of top and conveying lever and conveys shell section 213 with third
It the top discharge channel a31 of connection and is below corresponding with the second discharging section 262 and from top to bottom gradually along lower inclined plane
The 26232 bottom discharge channel a32 extended towards the export direction inclination of third channel 2621；
Conveying the raw material being equipped in the side wall of housing 21 between conveying housing 21 and delivery pipe 22 and heat makes conveying
The temperature and mobility of raw material between housing 21 and delivery pipe 22 are all higher than the temperature and mobility of the raw material in delivery pipe 22
Heating element 27；Heating element 27 includes conveying 211 corresponding first bringing-up section 271 of shell section with first, is conveyed with third
213 corresponding second bringing-up section 272 of shell section, third bringing-up section 273 corresponding with top discharge channel a31 and and bottom discharge
Corresponding 4th bringing-up sections 274 of channel a32；The lower end of hypomere a2 is formed with from top to bottom gradually tapping channel a32 downward
Export direction tilts the heating inclined-plane a21 of extension, and the 4th bringing-up section 274 heats heating inclined-plane a21, makes heating inclined-plane
A21 has higher temperature, and the lower floor contacted can be made to print melting layer.The present invention is in practical work process, feeding device
14 by raw material supply to heating box 13, for heating box 13 by raw material heating and melting into fluid, the raw material of thawing enters print head 2
In, to convey front of the second side as walking in a horizontal state of housing 21, print head 2 makes third channel under the drive of movement device 12
2621 and bottom discharge channel a32 carries out 3 D-printing on print platform 11 backwards.Specifically, in non-print state, first liter
Third is conveyed shell section 213 and first passage by the lower end that drop driving device 224 drives delivery pipe 22 and makes the second transportation section 222 downwards
2121 upper port blocks, and the second lifting drive 251 driving core bar 25 drives conveying lever 24 to be downwards in charging hole 242
The lower section of the upper end of first port 2221 and blocked charging hole 242, start printing when, in the first lifting drive
Under 224 driving, delivery pipe 22 rises, and the lower end of the second transportation section 222 is not to third conveying shell section 213 and first passage 2121
Upper port block, core bar 25 is made to drive 24 climb bigger of conveying lever, makes charging hole 242 upper higher than the first port 2221
End, the first device of rotation driving 223 driving delivery pipe 22 rotate by the raw material of thawing from the inside of delivery pipe 22 downwards conveying according to
It is secondary to be flowed out by charging hole 242, material guide hole 241 and third channel 2621, while by the raw material of thawing from the outside of delivery pipe 22
Conveying downwards passes sequentially through third conveying shell section 213, top discharge channel a31 and bottom discharge channel a32 outflows, and pads and lead in third
Below the raw material that road 2621 flows out；Heating element 27 to conveying housing 21 heat, make lower end heating inclined-plane a21 have compared with
High temperature, while raw material of the heating element 27 between conveying housing 21 and delivery pipe 22 is further heated, and makes conveying
The temperature and mobility of the raw material in 22 outside of pipe are above the temperature and mobility of the raw material of 22 inside of delivery pipe, i.e. bottom discharge is led to
The temperature and mobility of the raw material of road a32 outflows are above the temperature and mobility of the raw material of the outflow of third channel 2621, are beating
During print, the printable layer of heating inclined-plane a21 and lower floor slightly cooled and solidified contacts, and can melt the upper surface of lower floor's printable layer
Change, the lower floor that the raw material and surface that the raw material pad of subsequent bottom discharge channel a32 outflow flow out in third channel 2621 melt prints
Between layer, the raw material of bottom discharge channel a32 outflows plays the role of glued, the raw material that third channel 2621 is flowed out and lower floor's printing
Layer natural fusion is integral, and it is not in apparent composition surface between upper strata printable layer and lower floor's printable layer to make, adjacent print layer
Between engagement it is more secured, while also ensure the raw material in third channel 2621 as the main material for forming printout
The properties such as mobility are constant, do not change the design parameters such as main material initial flow, and then ensure printout in print procedure
In be less prone to deformation etc. influence quality situation；For the raw material that mobility after thawing is larger, the present invention can also only individually on
It rises core bar 25 and drives conveying lever 24, and utilize the first lifting drive 224 driving delivery pipe 22 downwards, make the second transportation section
222 lower end blocks the upper port of third conveying shell section 213 and first passage 2121, and then can only allow 22 inside of delivery pipe
Raw material outflow, raw material in delivery pipe 22 can be realized and lower floor that upper surface is melted in the raw material for not needing to the outside of delivery pipe 22
Printable layer natural fusion is integral.Concrete structure can be that print head 2 is equipped with the driving device that driving print head 2 rotates, this drive
The direction of walking in a horizontal state carries out rotation adjustment to print head 2 when dynamic device can be printed according to print head 2, makes 2621 He of third channel
Bottom discharge channel a32 is towards rear.The concretely electric heating tube of heating element 27.Bottom discharge channel a32 concretely with third
The width of channel 2621 is flat accordingly.The upper end of first discharging section 261, which is formed with, is stuck in the of 2122 lower end of the first side wall
One fixture block, 2122 lower end of the first side wall are formed with the second fixture block being stuck in below the first fixture block.
Preferably, the upper end of the second sloped sidewall 2623 is resisted against the lower end of conveying lever 24, and the lower end of conveying lever 24 is formed
Oriented ramp 26231 extends the guiding extension 243 being oriented to the raw material in material guide hole 241 towards third channel 2621.
In actual use, the upper end of the second sloped sidewall 2623 can limit conveying lever 24 present invention, be oriented to extension
243 raw materials that can be flowed out to material guide hole 241 are oriented to, and especially after delivery pipe 22 rises, being oriented to extension 243 makes this
Raw material is smoothly flowed out out of third channel 2621, is avoided enter into bottom discharge channel a32 and is mixed with the raw material in guide channel a3.
Preferably, third channel 2621, the second sloped sidewall 2623, bottom discharge channel a32 and heating inclined-plane a21 and level
The angle in face becomes smaller successively, this structure can be such that third channel 2621 and bottom discharge channel a32 from top to bottom increasingly gathers, more just
In third channel 2621 flow out raw material contact and combine with the bottom discharge channel a32 raw materials flowed out, and third channel 2621 and
The angle of horizontal plane is 15-30 °, and specific angle can be 15,20,25 or 30 °, and the setting at this inclination angle is more convenient for third channel 2621
In raw material flow out and be laid on the raw material of bottom discharge channel a32 outflows, the angle for heating inclined-plane a21 and horizontal plane is 5-
15 °, specific angle can be 5,8,10,13 or 15 °, and the setting at this inclination angle heating inclined-plane a21 that is more convenient for takes advantage of a situation with lower floor printable layer
It contacts and effectively heating surface (area) (HS is sufficiently large, the thawing for lower floor's printable layer upper surface of being more convenient for.
Preferably, the first heat insulation layer 225 is equipped in the side wall of delivery pipe 22, the second guarantor is covered with outside conveying housing 21
Warm thermal insulation layer 214.In actual use, the first heat insulation layer 225 can avoid heating element 27 and delivery pipe to the present invention
The heat transfer of 22 outside raw materials to the raw material in delivery pipe 22, avoid the normal design mobility of raw material in delivery pipe 22 by
It influences, further ensures that final product quality；Second heat insulation layer 214 can ensure the heat insulation effect of entire print head 2, and to the external world
Object carries out effective protection, will not at least scald staff.
Preferably, print head 2 is further included connect to store up in top with conveying 21 and second heat insulation layer 214 of housing
The material-storing box 28 for melting raw material is deposited, material-storing box 28 is connected with heating box 13.In actual use, material-storing box 28 can by the present invention
The raw material melted in heating box 13 is collected storage, then the interior outside of delivery pipe 22 is fed simultaneously, it can be ensured that
The stability of feed.
Preferably, it is equipped with third heat insulation layer 281 in the side wall of material-storing box 28.The present invention in actual use,
Third heat insulation layer 281 can ensure that the heat insulation effect of material-storing box 28, and then ensure the thawing raw material for flowing through to come from heating box 13
Appointing in material-storing box 28 so has satisfactory temperature and mobility.
Preferably, the top of material-storing box 28 is equipped with connecting plate 282, and the upper end of delivery pipe 22, which is equipped with, upwardly extends the company of being through to
The transmission segment 226 of 282 top of fishplate bar, the first device of rotation driving 223 and the first lifting drive 224 pass through transmission segment 226
Delivery pipe 22 is driven；The upper end of axis 23 is equipped with the first drive link 232 for extending upwardly to 282 lower surface of connecting plate,
Second device of rotation driving 231 is driven axis 23 by the first drive link 232；The upper end of core bar 25 is equipped with and upwardly extends
The second drive link 252 of 282 top of connecting plate is through to, the second lifting drive 251 is by the second drive link 252 to core bar
25 are driven.
Preferably, the first device of rotation driving 223 and the second device of rotation driving 231 are that output terminal is set on connection downward
The motor of 282 upper surface of plate, the first lifting drive 224 and the second lifting drive 251 are that output terminal is set on upward
The motor of 282 upper surface of connecting plate；First device of rotation driving 223 is fixed on by fixed component 2231 on connecting plate 282；
The output terminal of first device of rotation driving 223 has been fixedly and coaxially connected first gear 2232, the upper end of transmission segment 226
Peripheral surface is formed with and 2232 matched first tooth section 2261 of first gear；The output terminal of second device of rotation driving 231 is same
Axis is fixedly connected with second gear 2311, and the upper end circumferential surface of the first drive link 232 is formed with matched with second gear 2311
Second tooth section 2321；
The output terminal of first lifting drive 224 lifts transmission segment 226 by first level driver plate 2241
Transmission, the output terminal of the first lifting drive 224 have been fixedly and coaxially connected the first drive screw 2242, first level driver plate
2241 be formed with 2242 matched first threaded hole of the first drive screw, be formed on the inside of the upper end of transmission segment 226 for the
The annular groove 2262 that one horizontal conveyor plate 2241 stretches into；The output terminal of second lifting drive 251 passes through the second horizontal biography
Movable plate 2511 carries out lifting and driving to the second drive link 252, and the output terminal of the second lifting drive 251 has been fixedly and coaxially connected
Second drive screw 2512, the second horizontal conveyor plate 2511 are formed with and 2512 matched second screw thread of the second drive screw
Hole, the upper end circumferential surface of the second drive link 252 are formed with the card slot 2521 stretched into for the second horizontal conveyor plate 2511.The present invention is in reality
During the use of border, the first device of rotation driving 223 has multiple vertical items by first gear 2232 and 226 upper end of transmission segment
First tooth section 2261 of shape tooth matches, and rotation driving is carried out to transmission segment 226, and transmission segment 226 drives delivery pipe 22 to rotate；The
Two device of rotation driving 231 have the second of multiple vertical bar shaped teeth by 2311 and first drive link of second gear, 232 upper end
Tooth section 2321 matches, and rotation driving is carried out to the first drive link 232, and the first drive link 232 drives axis 23 to rotate；First liter
Drop driving device 224 carries out first level driver plate 2241 lifting driving by the first drive screw 2242, and first level passes
Movable plate 2241 drives transmission segment 226 to carry out lifting action by being caught in the annular groove 2262 of 226 upper end of transmission segment, due to ring
Connected in star 2262 is around the annular of a circle, and it is recessed with annular that the rotation of transmission segment 226 has no effect on first level driver plate 2241
The snap-fit relationship of slot 2262, and first gear 2232 is matched with the first tooth section 2261 by the bar shaped tooth extended up and down, is passed
The lifting of dynamic section 226 also has no effect on the matching relationship of 2232 and first tooth section 2261 of first gear；Second lifting drive
251 carry out the second horizontal conveyor plate 2511 lifting driving by the second drive screw 2512, and the second horizontal conveyor plate 2511 is logical
It crosses and is caught in the card slot 2521 of 252 upper end of the second drive link the second drive link 252 to be driven to carry out lifting action.
The product form of the present invention is not limited to this case diagram and embodiment, anyone carries out it the appropriate of similar thinking
Variation or modification all should be regarded as not departing from the patent category of the present invention.
Claims (8)
1. a kind of practical three-dimensional printer, the print head including printer main body and on printer main body；Its feature exists
In：The print head includes conveying housing setting up and down, and the delivery pipe being placed in conveying housing is placed on delivery pipe in top
Interior axis is below the conveying lever being placed in conveying housing and delivery pipe, is connected to conveying lever upper end and upward sliding passes through
It wears the core bar of the axis and is connected to the discharging gate of conveying lever lower end；The conveying housing, delivery pipe, axis, conveying lever
It is coaxially set with core bar；
The conveying housing includes the first conveying shell section in top, and second be below conveys shell section and be connected to
The third conveying shell section being tapered between first conveying shell section and the second conveying shell section and from top to bottom；The second conveying shell
Section has slides through first passage for conveying lever matching；
The delivery pipe is included in top and the described first corresponding first transportation section of conveying shell section and defeated with the third
The second transportation section that the medial surface of shell section is sent to match；The medial surface of first transportation section, which is formed with, from top to bottom to be extended spirally
First conveying screw thread, the lateral surface of first transportation section be formed with from top to bottom extend spirally second conveying screw thread；Institute
The upper end for stating delivery pipe is equipped with the first device of rotation driving of driving delivery pipe rotation and drives first liter of delivery pipe lifting
Driving device drops；The lower end of second transportation section is formed with the first port slid through for conveying lever matching；
The upper end of the axis is equipped with driving axis and the rotation opposite with the delivery pipe rotation direction is carried out around the core bar
The second device of rotation driving；
Be formed with the coaxial material guide hole extended up and down in the conveying lever, the upper end of the material guide hole be equipped with it is multiple from the bottom to top
Between the charging hole that extends obliquely to the circumferential surface of the conveying lever, multiple charging hole uniform rings are around the axis of the material guide hole
Line is distributed；It is corresponding between each charging hole and the top and bottom of first port；
The upper end of the core bar is equipped with the second lifting drive of driving core bar lifting；
The discharging gate includes the first discharging section being connect in top with the lower end of the described second conveying shell section and is below
And the second discharging section of extension is from top to bottom gradually tilted to the conveying housing side；The conveying housing has and described the
The lower end of two discharging sections has and institute towards corresponding first side and the second side opposite with the first side, first discharging section
The second channel of material guide hole lower end connection is stated, there is second discharging section third connected with the second channel lower end to lead to
Road, second discharging section include the first sloped sidewall of closer conveying housing first side and closer conveying housing the
Second sloped sidewall of two sides；Second sloped sidewall has ramp and the lower inclined plane being below, institute in top
The distance between ramp and lower inclined plane is stated from top to bottom to taper into；
The second conveying shell section have with the first side wall of the first sloped sidewall homonymy and with second sloped sidewall
The second sidewall of homonymy, the second sidewall include epimere corresponding with the conveying lever and with second sloped sidewall pair
The hypomere answered；The first passage is formed with the guide channel from top to bottom extended in the epimere and lower section；The guide
Channel include in top it is corresponding with the conveying lever and the first discharging section and with the third convey shell section connect on go out
Expect channel and be below corresponding with second discharging section and from top to bottom gradually lead to along the lower inclined plane towards the third
The export direction in road tilts the bottom discharge channel of extension；
It is described conveying housing side wall in be equipped with to it is described conveying housing and the delivery pipe between raw material carry out heating make it is defeated
Send the temperature of raw material and adding for mobility that the temperature of the raw material between housing and delivery pipe and mobility are all higher than in delivery pipe
Thermal part；The heating element includes conveying corresponding first bringing-up section of shell section with described first, and shell is conveyed with the third
Corresponding second bringing-up section of section, third bringing-up section corresponding with the top discharge channel and with the bottom discharge channel phase
Corresponding 4th bringing-up section；The lower end of the hypomere is formed with from top to bottom gradually inclines towards the export direction of the bottom discharge channel
The heating inclined-plane tiltedly extended.
2. a kind of practical three-dimensional printer according to claim 1, it is characterised in that：Second sloped sidewall it is upper
End is resisted against the lower end of the conveying lever, and the lower end of the conveying lever forms the oriented ramp and extends in the material guide hole
The guiding extension that is oriented to towards the third channel of raw material.
3. a kind of practical three-dimensional printer according to claim 2, it is characterised in that：The third channel, second incline
Oblique side wall, bottom discharge channel and the angle of heating inclined-plane and horizontal plane become smaller, and the folder of the third channel and horizontal plane successively
Angle is 15-30 °, and the angle of the heating inclined-plane and horizontal plane is 5-15 °.
4. a kind of practical three-dimensional printer according to any one of claim 1-3, it is characterised in that：The delivery pipe
Side wall in be equipped with the first heat insulation layer, it is described conveying housing outside be covered with the second heat insulation layer.
5. a kind of practical three-dimensional printer according to claim 4, it is characterised in that：The print head, which further includes, to be in
Top connect to store the material-storing box for melting raw material with the conveying housing and the second heat insulation layer.
6. a kind of practical three-dimensional printer according to claim 5, it is characterised in that：It is set in the side wall of the material-storing box
There is third heat insulation layer.
7. a kind of practical three-dimensional printer according to claim 6, it is characterised in that：The top of the material-storing box is equipped with
Connecting plate, the upper end of the delivery pipe are equipped with the transmission segment for upwardly extending and being through to above the connecting plate, first rotation
Driving device and the first lifting drive are driven the delivery pipe by the transmission segment；The upper end of the axis is set
There is the first drive link for extending upwardly to the connecting plate lower surface, second device of rotation driving is driven by described first
Bar is driven the axis；The upper end of the core bar is equipped with the second transmission for upwardly extending and being through to above the connecting plate
Bar, second lifting drive are driven the core bar by second drive link.
8. a kind of practical three-dimensional printer according to claim 7, it is characterised in that：First device of rotation driving
It is the motor that output terminal is set on the connecting plate upper surface downward with the second device of rotation driving, the first lifting driving dress
Put with the second lifting drive be output terminal upward be set on the connecting plate upper surface motor；The first rotation driving
Device is fixed on by fixed component on the connecting plate；
The output terminal of first device of rotation driving has been fixedly and coaxially connected first gear, the upper end peripheral surface of the transmission segment
It is formed with and the matched first tooth section of the first gear；The output terminal of second device of rotation driving is fixedly and coaxially connected
There is second gear, the upper end circumferential surface of first drive link is formed with and the matched second tooth section of the second gear；
The output terminal of first lifting drive carries out lifting and driving, institute by first level driver plate to the transmission segment
The output terminal for stating the first lifting drive has been fixedly and coaxially connected the first drive screw, and the first level driver plate is formed with
With matched first threaded hole of first drive screw, the upper end inside of the transmission segment is formed with for the first level
The annular groove that driver plate stretches into；The output terminal of second lifting drive is by the second horizontal conveyor plate to described second
Drive link carries out lifting and driving, and the output terminal of second lifting drive has been fixedly and coaxially connected the second drive screw, institute
State the second horizontal conveyor plate be formed with matched second threaded hole of second drive screw, second drive link it is upper
End circumferential surface is formed with the card slot stretched into for the second horizontal conveyor plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810109780.1A CN108215166B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810109780.1A CN108215166B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer |
| CN201710474011.7A CN107020742B (en) | 2017-06-21 | 2017-06-21 | A kind of highly practical three-dimensional printer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710474011.7A Division CN107020742B (en) | 2017-06-21 | 2017-06-21 | A kind of highly practical three-dimensional printer |
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| Publication Number | Publication Date |
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| CN108215166A true CN108215166A (en) | 2018-06-29 |
| CN108215166B CN108215166B (en) | 2019-12-24 |
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| CN201810109780.1A Active CN108215166B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer |
| CN201710474011.7A Active CN107020742B (en) | 2017-06-21 | 2017-06-21 | A kind of highly practical three-dimensional printer |
| CN201810111829.7A Active CN108407279B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer |
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| CN201710474011.7A Active CN107020742B (en) | 2017-06-21 | 2017-06-21 | A kind of highly practical three-dimensional printer |
| CN201810111829.7A Active CN108407279B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer |
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| CN108262949A (en) * | 2018-01-16 | 2018-07-10 | 济南大学 | Quality device, color-forming system, color forming method and the polychrome 3D printer using the device |
| CN112477109A (en) * | 2020-10-09 | 2021-03-12 | 哈尔滨工业大学 | Fused deposition 3D printer and digital linear array adjustable spray head device thereof |
| CN112476705A (en) * | 2020-11-06 | 2021-03-12 | 北京石油化工学院 | 3D printing head for concrete added with interfacial agent |
| IT202100003554A1 (en) * | 2021-02-16 | 2022-08-16 | Rev3Rd Srl | CO-EXTRUSION SYSTEM, ESPECIALLY FOR 3D PRINTING |
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| CN101817121A (en) * | 2010-04-15 | 2010-09-01 | 华中科技大学 | Deposition forming composite manufacturing method of part and mould and auxiliary device thereof |
| CN103935038A (en) * | 2014-04-16 | 2014-07-23 | 福建海源三维打印高科技有限公司 | 3D printer head |
| US20150352792A1 (en) * | 2014-06-06 | 2015-12-10 | Yasusi Kanada | 3D modeling and printing methods based on specification of height and width of each part |
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| US5764521A (en) * | 1995-11-13 | 1998-06-09 | Stratasys Inc. | Method and apparatus for solid prototyping |
| GB201304968D0 (en) * | 2013-03-19 | 2013-05-01 | Eads Uk Ltd | Extrusion-based additive manufacturing |
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| CN103847101A (en) * | 2014-02-26 | 2014-06-11 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer |
| US20150307385A1 (en) * | 2014-04-25 | 2015-10-29 | Massachusetts Institute Of Technology | Methods and apparatus for additive manufacturing of glass |
| CN204658954U (en) * | 2015-03-25 | 2015-09-23 | 中山市迪迈打印科技有限公司 | For the shower nozzle of three-dimensional printer |
| US20180297279A1 (en) * | 2015-04-22 | 2018-10-18 | Magicfirm Europe Ab | A three-dimensional imaging apparatus for modeling a colored three-dimensional object |
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| SE1500503A1 (en) * | 2015-12-10 | 2017-06-11 | Magicfirm Europe Ab | A three-dimensional imaging apparatus having a color mixing channel |
| CN106493946B (en) * | 2016-11-15 | 2018-10-02 | 哈尔滨工业大学 | A kind of nozzle suitable for continuous fiber reinforced composite materials increasing material manufacturing |
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- 2017-06-21 CN CN201810109780.1A patent/CN108215166B/en active Active
- 2017-06-21 CN CN201710474011.7A patent/CN107020742B/en active Active
- 2017-06-21 CN CN201810111829.7A patent/CN108407279B/en active Active
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| CN101817121A (en) * | 2010-04-15 | 2010-09-01 | 华中科技大学 | Deposition forming composite manufacturing method of part and mould and auxiliary device thereof |
| CN103935038A (en) * | 2014-04-16 | 2014-07-23 | 福建海源三维打印高科技有限公司 | 3D printer head |
| US20150352792A1 (en) * | 2014-06-06 | 2015-12-10 | Yasusi Kanada | 3D modeling and printing methods based on specification of height and width of each part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108215166B (en) | 2019-12-24 |
| CN108407279A (en) | 2018-08-17 |
| CN107020742A (en) | 2017-08-08 |
| CN107020742B (en) | 2018-04-24 |
| CN108407279B (en) | 2020-04-28 |
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