CN108515691A - A kind of integrated three-dimensional printer of product - Google Patents
A kind of integrated three-dimensional printer of product Download PDFInfo
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- CN108515691A CN108515691A CN201810459495.2A CN201810459495A CN108515691A CN 108515691 A CN108515691 A CN 108515691A CN 201810459495 A CN201810459495 A CN 201810459495A CN 108515691 A CN108515691 A CN 108515691A
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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
- B29C64/10—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]
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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
- B29C64/295—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
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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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention proposes a kind of integrated three-dimensional printer of product,Break through the structural form of conventional three-dimensional printer,Raw material in the external delivery pipe of heating layer is further heated,Make the temperature and mobility of the raw material that the temperature and mobility of raw material in outer delivery pipe be above in the interior delivery pipe,In print procedure,The printable layer of the lower inclined plane of flexible heater block and lower layer slightly cooled and solidified contacts,The upper surface of lower layer's printable layer can be made to melt,The raw material that the raw material of upper feeding hole outflow simultaneously is flowed out with lower feed opening converges in blanking hole,The raw material of lower feed opening outflow, which can be evenly distributed on around the raw material of upper feeding hole outflow, to be wrapped up,It then flows out from third channel and is contacted with lower layer printable layer,Keep raw material and the lower layer's printable layer natural fusion of the outflow of upper feeding hole integral,Make to be not in apparent joint surface between upper layer printable layer and lower layer's printable layer,Engagement between adjacent print layer is more secured.
Description
Present patent application is the divisional application of Chinese Patent Application No. 201710474013.6, the application number of original application
It is 201710474013.6, the applying date is on 06 21st, 2017, a kind of entitled firm three-dimensional printer of finished product.
Technical field
The present invention relates to 3 D-printing machinery fields, and in particular to a kind of integrated three-dimensional printer of product.
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 and three-dimensional is beaten forming two-dimensional plane drawing in ink printed to papery
Print machine be the materials such as liquid photosensitive resin material, the plastic wire of melting, land plaster, metal powder by jet binder or squeeze
The modes such as go out and realizes that layer upon layer is superimposed to form 3D solid.The structure of three-dimensional printer has been known, such as Chinese invention patent
201310559350.7 disclosing a kind of fusion sediment 3 D-printing nozzle and printer, 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, the plasticizing pipe for being installed into silk, and the periphery of the spiro rod machine tube and branch pipe is equipped with heating device.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 screw-thread fit.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 sets and is made of heating mantle and thermistor, the heat that heating mantle generates makes silk melt, thermistor feedback temperature information, entirely
Heating device 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 layer, printable layer is layered on lower layer's printable layer, lower layer's printable layer slightly cooled and solidified, on
Layer printable layer be only to be layered on lower layer's printable layer, there are apparent joint surface, this joint 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 joint 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, the integrated three-dimensional printer of highly practical product.
In order to achieve the above object, the present invention uses such technical solution：
A kind of integrated three-dimensional printer of product, including printer main body and the print head on printer main body；
The top that the print head is set to print platform connect with movement device and is connected to the discharge port of heating box；The print head packet
Include the outer delivery pipe in outside, the interior delivery pipe being placed in outer delivery pipe, the middle bar being placed in outer delivery pipe and interior delivery pipe,
And it is connected to the discharging gate of outer delivery pipe lower end；
The outer delivery pipe include in thicker the first outer transportation section in top, be below relatively carefully and with the discharging gate
Second outer transportation section of connection, and be connected between the first outer transportation section and the second outer transportation section and be from top to bottom tapered
The outer transportation section of third；The madial wall of the first outer transportation section is formed with the first conveying screw thread from top to bottom extended spirally；
The second outer transportation section has first passage；
The interior delivery pipe include it is relatively thick in top and with transportation section in the described first outer transportation section corresponding first,
Transportation section in second to match with the medial surface with transportation section outside the third；The madial wall of transportation section is formed in described first
There are the second conveying screw thread from top to bottom extended spirally, the direction that extends spirally of the second conveying screw thread to be conveyed with described first
Screw thread to extend spirally direction opposite；The lower end of transportation section, which is formed with, in described second passes through for the middle bar and with described first
Identical first port of channel diameter；
The discharging gate includes the first discharging section being connect with the lower end of the described second outer transportation section in top, and is in
Lower section and from top to bottom gradually to outer inclined second discharging section in delivery pipe side；First discharging section have with it is described
First passage lower end is connected to and the identical second channel of diameter, and second discharging section has to be connected to the second channel lower end
Third channel；
The middle bar includes being in top upper conveying rod segment corresponding with transportation section in described first, and be below simultaneously
It from top to bottom matches across first port and matches the lower conveying rod segment stretched into the first passage and second channel；Institute
It states and is formed with the material guide hole extended up and down in lower conveying rod segment, the material guide hole includes in top and thinner feeding hole and place
It is connected to feeding hole and thicker blanking hole, the feeding hole and blanking hole coaxial line in lower section；Match the upper end in the feeding hole
Equipped with multiple upper feeding holes gradually extended obliquely to the circumferential surface of the lower conveying rod segment from the bottom to top, multiple upper feedings
Around distribution, the upper end of the blanking hole is equipped with multiple gradually oblique to the circumferential surface of the lower conveying rod segment from the bottom to top hole uniform ring
The lower feed opening upwardly extended, multiple lower feed opening uniform rings are around distribution；The charging in the upper feeding hole and lower feed opening
The distance between mouth is more than the distance between upper end to the lower end of first port；
The upper end of the outer delivery pipe and interior delivery pipe is equipped with the device of rotation driving of both drivings rotation, described interior defeated
The lifting drive for sending the upper end of pipe and middle bar to be equipped with both drivings lifting；
The raw material being covered in external delivery pipe on the outside of the outer delivery pipe, which carries out heating, makes the temperature and stream of this raw material
Dynamic property is above the heating layer of the temperature and mobility of the raw material in the interior delivery pipe；The lower end of the heating layer is equipped under
Layer printable layer carries out the flexible heater block for being heated to melting；The flexible heater block includes under top and the heating layer
The connection block portion of connection is held, and is below and from top to bottom gradually tilts prolonging for extension towards the export direction of the third channel
Stretch block portion；Second discharging section includes the sloped sidewall in top, is below and towards the notch of the elongation block part,
And two connection side walls being connected between sloped sidewall and notch；The elongation block part have in top, with it is described
Notch is corresponding and from top to bottom gradually tilts the ramp extended towards the export direction of the third channel, and is in down
Side simultaneously from top to bottom gradually tilts the lower inclined plane extended towards the export direction of the third channel；It supports the upper end of the ramp
In the lower end of first discharging section；The distance between the ramp and lower inclined plane from top to bottom taper into.
There is the engagement edge being in contact with the ramp, the engagement edge to erect for the lower end of first discharging section
It is arc-shaped to cross section.
The angle of the sloped sidewall, ramp and lower inclined plane and horizontal plane becomes smaller successively, and the sloped sidewall and water
The angle of plane is 15-30 °, and the angle of the lower inclined plane and horizontal plane is 5-15 °.
Heat generating components is equipped in the heating layer, the heat generating components includes covering in the fever end of the heating layer lower end
Layer, the flexible heater block are heat conduction block made of flexible ceramic, the upper end of the flexible heater block and the fever end layer
Lower surface be in close contact.
The upper end of the discharging gate is embedded at the lower end of the heating layer, and the upper end of first discharging section is resisted against described
The lower end of second outer transportation section, the upper end circumferential surface of first discharging section are formed with the first flange, in the lower end of the heating layer
Side is formed with the second flange being stuck in below first flange.
It is equipped with the first heat insulation layer in the side wall of the interior delivery pipe, the second heat preservation is covered on the outside of the heating layer
Thermal insulation layer.
The upper end of the connection block portion is embedded at the lower end of second heat insulation layer, the upper end shape of the connection block portion
At the first convex block having towards second heat insulation layer, the lower end inside face of second heat insulation layer, which is formed with, to be stuck in
Second convex block of first underbump.
Further include being used to store the material-storing box for melting raw material in top；Third is equipped in the side wall of the material-storing box to keep the temperature
Thermal insulation layer.
After adopting the above technical scheme, the integrated three-dimensional printer of product of the present invention, breaks through conventional three-dimensional printer
Structural form, in practical work process, feeding device by raw material supply to heating box, heating box by raw material heating and melting at
The raw material of fluid, thawing enters in print head, and print head is under the drive of movement device with third channel towards walking in a horizontal state
The mode at rear is printed on print platform, in non-print state, in lifting drive driving delivery pipe and middle bar to
Under so that the lower end of transportation section in second is blocked the upper port of transportation section outside third and first passage, so that upper feeding hole is in described
The lower section of the upper end of first port and so that upper feeding hole is blocked, start printing when, it is interior under the driving of lifting drive
Delivery pipe and middle bar rise, and so that transportation section in second is not blocked to the upper port of transportation section outside third and first passage, make middle bar
Climb bigger makes upper feeding hole be higher than the upper end of the first port, and makes in lower feed opening and the outer transportation section and second of third
Gap between transportation section corresponds to, and by the raw material of thawing, conveying passes sequentially through second to delivery pipe downwards in device of rotation driving driving
Interior transportation section, upper feeding hole, feeding hole, blanking hole and third channel outflow, while device of rotation driving drives outer delivery pipe will
The conveying downwards of the raw material of thawing passes sequentially through gap in the outer transportation section and second of third between transportation section, lower feed opening, blanking
Hole and third channel outflow；Raw material in the external delivery pipe of heating layer is further heated, and the temperature of raw material in outer delivery pipe is made
Degree and mobility are above the temperature and mobility of the raw material in the interior delivery pipe, the i.e. temperature of the raw material of upper feeding hole outflow
The temperature and mobility of the raw material of lower feed opening outflow are above with mobility, in print procedure, flexible heater block it is oblique
The printable layer of face and lower layer slightly cooled and solidified contacts, and the upper surface of lower layer's printable layer can be made to melt, while upper feeding hole is flowed out
The raw material that is flowed out with lower feed opening of raw material converge in blanking hole, the raw material of lower feed opening outflow can be evenly distributed on upper feeding
It is wrapped up around the raw material of hole outflow, then flows out from third channel and contacted with lower layer printable layer, upper feeding hole is made to flow out
Raw material and lower layer's printable layer natural fusion it is integral, make to be not in significantly to connect between upper layer printable layer and lower layer's printable layer
Conjunction face, the engagement between adjacent print layer is more secured, while also ensuring the raw material of upper feeding hole outflow as forming printing
The properties such as the mobility of the main material of finished product are constant, do not change the design parameters such as main material initial flow, and then ensure to print
Finished product is less prone to the case where deformation etc. influences quality in print procedure；And it is contacted with lower layer printable layer in flexible heater block
Natural resiliency can be relied on to carry out up towards being deformed in notch when stress, and increase the contact area with lower layer's printable layer, Jin Erzeng
By force to the heating and melting effect of lower layer's printable layer；For the raw material that mobility after thawing is larger, the present invention also only can individually rise
Middle bar, and utilize delivery pipe in lifting drive driving downwards, make the lower end of transportation section in second by transportation section outside third and
The upper port of first passage blocks, and then can only allow the raw material in interior delivery pipe to flow out, and does not need the raw material in outer delivery pipe
It is integral that lower layer's printable layer natural fusion that raw material and upper surface in interior delivery pipe melt can be realized.With prior art phase
Than the integrated three-dimensional printer of product of the invention, the integral type that can carry out melting completely formula to adjacent printable layer connects
It closes, printout globality is strong and more secured, and material flow is smooth, highly practical.
Description of the drawings
Fig. 1 is the easy structure schematic diagram of the present invention；
Fig. 2 is the First partial schematic cross-sectional view of the present invention；
Fig. 3 is the use state broken section structural schematic diagram of the present invention；
Fig. 4 is the fragmentary bottom structural schematic diagram of the present invention；
Fig. 5 is the second local schematic cross-sectional view of the present invention.
In figure：
10- printer main body 101- print platform 102- movement device 103- heating box 104- feeding devices 20- is beaten
Print head
Outer the first outer transportation section 111- first of delivery pipe 11- of 1- are conveyed outside screw thread the second outer transportation section 13- thirds of 12-
Transportation section 14- the first transmission segment 141- the first tooth sections
Transportation section 221- first is logical in the conveying screw threads of transportation section 211- second 22- second in delivery pipe 21- first in 2-
Mouth 23- the second transmission segment 231- the second tooth section 232- annular grooves the first heat insulation layers of 24-
Conveying rod segment 321- material guide hole 3211- feedings hole 3212- blanking holes under rod segment 32- are conveyed in 3- on bar 31-
Feed opening 33- drive link 331- card slots under 3213- upper feedings hole 3214-
4- discharging gates 41- the first discharging section 411- second channel 412- engagement edges the first flanges of 413- 42- second
Discharging section 421- third channel 422- sloped sidewall 423- notches 424- connection side walls
5- device of rotation driving 51- fixed component 52- first gear 53- second gear 6- lifting drives 61-
First motor 611- first level driver plate 612- the first drive screw 62- the second motor 621- the second horizontal conveyor plates
622- the second drive screw 7- heating layer 71- flexible heater block 711- connection block portion 7111- the first convex block 712- extension blocks
Portion 7121- ramp 7122- lower inclined plane 72- heat generating components 721- fever end layer 73- the second flange the second thermal insulation separations of 8-
Thermosphere 81- the second convex block 9- material-storing box 91- third heat insulation layer 92- connecting plates.
Specific implementation mode
In order to further explain the technical solution of the present invention, being described in detail below by specific embodiment.
A kind of integrated three-dimensional printer of product of the present invention as shown in Figs. 1-5, including printer main body 10 and is set to
Print head 20 on printer main body 10；Printer main body 10 includes print platform 101, is set to 101 top air exercise of print platform
The movement device 102 of the print progress action drives of head 20, the heating box 103 that raw material is heated above print platform 101,
With the feeding device 104 being fed to heating box 103；Print head 20 is set to top and the movement device 102 of print platform 101
It connects and is connected to the discharge port of heating box 103；Print head 20 includes the outer delivery pipe 1 in outside, is placed in outer delivery pipe 1
Interior delivery pipe 2, the middle bar 3 being placed in outer delivery pipe 1 and interior delivery pipe 2, and be connected to the discharging gate of 1 lower end of outer delivery pipe
4；
Outer delivery pipe 1 includes being below relatively thin and being connect with discharging gate 4 in the first thicker outer transportation section 11 of top
The second outer transportation section 12, and be connected between the first outer transportation section 11 and the second outer transportation section 12 and from top to bottom gradually become
Transportation section 13 outside thin third；The madial wall of first outer transportation section 11 is formed with the first conveying screw thread from top to bottom extended spirally
111；Second outer transportation section 12 has first passage；
Interior delivery pipe 2 include it is relatively thick in top and with transportation section 21 in the first outer transportation section 11 corresponding first, and
Transportation section 22 in second to match with the medial surface of transportation section outside third 13；In first the madial wall of transportation section 21 be formed with by
The the second conveying screw thread 211 extended spirally under, the second conveying screw thread 211 extend spirally direction and the first conveying screw thread
111 extend spirally direction on the contrary, in this way when interior delivery pipe 2 and outer delivery pipe 1 are carried out at the same time conveying, interior delivery pipe 2 and outer
The rotation direction of delivery pipe 1 is on the contrary, can make the outer surface of interior delivery pipe 2 drive the raw material that melts relative to outer delivery pipe 1 and the
One conveying screw thread 111 generates stronger relative motion, and more conducively the raw material in outer delivery pipe 1 conveys downwards；Conveying in second
The lower end of section 22 is formed with bar 3 in confession and passes through and the first port 221 identical with first passage diameter；
Discharging gate 4 includes the first discharging section 41 being connect with the lower end of the second outer transportation section 12 in top, and is in down
Side and from top to bottom gradual inclined second discharging section in outside 1 side of delivery pipe 42；First discharging section 41 has and first passage
Lower end is connected to and the identical second channel 411 of diameter, and the second discharging section 42 has the third being connected to 411 lower end of second channel logical
Road 421；
Middle bar 3 include be in top upper conveying rod segment 31 corresponding with transportation section in first 21, and be below and by
Across the first port 221 and the lower conveying rod segment 32 stretched into first passage and second channel 411 is matched up to lower matching；Under it is defeated
It includes being in top and thinner 3211 He of feeding hole to send the material guide hole 321 for being formed in rod segment 32 and extending up and down, material guide hole 321
It is below and is connected to feeding hole 3211 and thicker blanking hole 3212,3212 coaxial line of feeding hole 3211 and blanking hole；Feeding
The upper end in hole 3211 is equipped with multiple upper feeding holes that the circumferential surface of conveying rod segment 32 extends obliquely gradually downward from the bottom to top
3213, multiple 3213 uniform rings of upper feeding hole around distribution, the upper end of blanking hole 3212 be equipped with it is multiple from the bottom to top gradually downward
The lower feed opening 3214 that the circumferential surface of conveying rod segment 32 extends obliquely, multiple 3214 uniform rings of lower feed opening are around distribution；Upper feeding
The distance between feed inlet of hole 3213 and lower feed opening 3214 is more than the distance between upper end to the lower end of the first port 221,
This structure can ensure that when the gap between each lower feed opening 3214 and transportation section 22 in transportation section outside third 13 and second is corresponding
When each upper feeding hole 3213 be on the first port 221 and can carry out smooth charging；
The upper end of outer delivery pipe 1 and interior delivery pipe 2 is equipped with the device of rotation driving 5 of both drivings rotation, interior delivery pipe 2
The lifting drive 6 of both drivings lifting is equipped with the upper end of middle bar 3；
The raw material that the outside of outer delivery pipe 1 is covered in external delivery pipe 1, which carries out heating, makes temperature and the flowing of this raw material
Property is above the heating layer 7 of the temperature and mobility of the raw material in interior delivery pipe 2；The lower end of heating layer 7, which is equipped with, prints lower layer
Layer carries out the flexible heater block 71 for being heated to melting；Flexible heater block 71 includes being connect with the lower end of heating layer 7 in top
Block portion 711 is connected, and is below and from top to bottom gradually tilts the elongation block part extended towards the export direction of third channel 421
712；Second discharging section 42 includes the sloped sidewall 422 in top, is below and towards the notch of elongation block part 712 423,
And two connection side walls 424 being connected between sloped sidewall 422 and notch 423, the i.e. cross section of the second discharging section 42 are
Rectangle；Elongation block part 712 has and from top to bottom gradually going out towards third channel 421 corresponding with notch 423 in top
Mouthful direction tilts the ramp 7121 extended, and is below and from top to bottom gradually towards the export direction of third channel 421
Tilt the lower inclined plane 7122 extended；The upper end of ramp 7121 is resisted against the lower end of the first discharging section 41；Ramp 7121 is under
The distance between inclined-plane 7122 from top to bottom tapers into, this structure can ensure that the raw material that third channel 421 flows out is beaten with lower layer
The upper surface of print melting layer gradually contacts and is merged naturally, more preferable in conjunction with effect, and being not likely to produce foam etc. influences finished product
The case where intensity.The present invention is in practical work process, and feeding device 104 is by raw material supply to heating box 103, heating box 103
By raw material heating and melting at fluid, the raw material of thawing enters in print head 20, print head 20 under the drive of movement device with
The mode at third channel 421 towards the rear of walking in a horizontal state is printed on print platform 101, and in non-print state, lifting is driven
Dynamic device 6 drives interior delivery pipe 2 and middle bar 3 so that the lower end of transportation section 22 in second is led to transportation section outside third 13 and first downwards
The upper port in road blocks, and makes lower section of the upper feeding hole 3213 in the upper end of first port 221 and makes upper feeding hole 3213
It is blocked, when starting printing, under the driving of lifting drive 6, interior delivery pipe 2 and middle bar 3 rise, and make conveying in second
Section 22 does not block the upper port of transportation section outside third 13 and first passage, makes 3 climb bigger of middle bar, makes upper feeding hole
3213 are higher than the upper end of the first port 221, and make in the outer transportation section 13 and second of lower feed opening 3214 and third transportation section 22 it
Between gap correspond to, device of rotation driving 5 drives interior delivery pipe 2 that the conveying downwards of the raw material of thawing is passed sequentially through conveying in second
Section 22, upper feeding hole 3213, feeding hole 3211, blanking hole 3212 and third channel 421 flow out, while device of rotation driving 5 drives
By the raw material of thawing, conveying passes sequentially through the seam outside third in transportation section 13 and second between transportation section 22 to dynamic outer delivery pipe 1 downwards
Gap, lower feed opening 3214, blanking hole 3212 and third channel 421 flow out；Raw material in 7 external delivery pipe 1 of heating layer is into traveling
One step heats, and makes the temperature and stream of the raw material that the temperature and mobility of raw material in outer delivery pipe 1 be above in the interior delivery pipe 2
Dynamic property, i.e., the temperature and mobility of the raw material that upper feeding hole 3213 is flowed out are above the temperature of the raw material of the outflow of lower feed opening 3214
And mobility, in print procedure, the printable layer of the lower inclined plane 7122 of flexible heater block 71 and lower layer slightly cooled and solidified contacts,
The upper surface of lower layer's printable layer can be made to melt, while the raw material of the raw material of the outflow of upper feeding hole 3213 and the outflow of lower feed opening 3214
Converge in blanking hole 3212, the raw material that lower feed opening 3214 flows out can be evenly distributed on the raw material week of the outflow of upper feeding hole 3213
Enclose and wrapped up, then flow out from third channel 421 and contacted with lower layer printable layer, the raw material that makes upper feeding hole 3213 flow out and
Lower layer's printable layer natural fusion is integral, makes to be not in apparent joint surface, phase between upper layer printable layer and lower layer's printable layer
Engagement between adjacent printable layer is more secured, while also ensuring that the raw material of the outflow of upper feeding hole 3213 is used as and forming printout
The properties such as the mobility of main material it is constant, do not change the design parameters such as main material initial flow, and then ensure printout
The case where deformation etc. influences quality is less prone in print procedure；And flexible heater block 71 contact with lower layer printable layer by
Natural resiliency can be relied on to carry out up towards deformation in notch 423 when power, and increase the contact area with lower layer's printable layer, Jin Erzeng
By force to the heating and melting effect of lower layer's printable layer；For the raw material that mobility after thawing is larger, the present invention also only can individually rise
Middle bar 3, and delivery pipe 2 in the driving downwards of lifting drive 6 is utilized, make the lower end of transportation section 22 in second that will be conveyed outside third
Section 13 and the upper port of first passage block, and then can only allow the raw material in interior delivery pipe 2 to flow out, and do not need outer delivery pipe 1
In raw material can be realized raw material in interior delivery pipe 2 and lower layer's printable layer natural fusion that upper surface is melted is integral.Specifically
Structure can be that print head 20 is equipped with the driving device that driving print head 20 rotates, this driving device can be beaten according to print head 20
The direction of walking in a horizontal state carries out rotation adjustment to print head 20 when print, makes third channel 421 towards rear.
Preferably, the lower end of the first discharging section 41 has the engagement edge 412 being in contact with ramp 7121, engagement edge
412 vertical cross-section is arc-shaped.The present invention in actual use, when elongation block part 712 be pressurized and up towards notch
When 423 directions are bent, ramp 7121 can take advantage of a situation upward smooth curved by arc-shaped 412 flexibility of engagement edge, be not easy to produce
Raw stress concentration, it is ensured that elongation block part 712 is used for a long time the service life.
Preferably, sloped sidewall 422, ramp 7121 and lower inclined plane 7122 and the angle of horizontal plane become smaller successively, and incline
The angle of oblique side wall 422 and 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
Raw material in third channel 421 is flowed out and is laid on lower layer's printable layer, and lower inclined plane 7122 and the angle of horizontal plane are 5-15 °,
Specific angle can be 5,8,10,13 or 15 °, the setting at this inclination angle be more convenient for lower inclined plane 7122 take advantage of a situation with lower layer printable layer contact and
Effective heating surface (area) (HS is sufficiently large, the thawing for lower layer's printable layer upper surface of being more convenient for.
Preferably, heat generating components 72 is equipped in heating layer 7, heat generating components 72 includes covering in the fever of 7 lower end of heating layer
End layer 721, flexible heater block 71 are heat conduction block made of flexible ceramic, upper end and the fever end layer 721 of flexible heater block 71
Lower surface be in close contact.The flexible heater block 71 of flexible ceramic form has good deformation performance, heat conductivility and wear-resisting
Performance, the upper end of flexible heater block 71 can efficient absorption fever end layer 721 heat and efficiently pass to lower layer's printable layer.Hair
The concretely electric heating tube of thermal part 72.
Preferably, the upper end of discharging gate 4 is embedded at the lower end of heating layer 7, and the upper end of the first discharging section 41 is resisted against second
The upper end circumferential surface of the lower end of outer transportation section 12, the first discharging section 41 is formed with the first flange 413, the lower end inside face of heating layer 7
It is formed with the second flange 73 for being stuck in 413 lower section of the first flange.This structure can effectively fix discharging gate 4.
Preferably, it is equipped with the first heat insulation layer 24 in the side wall of interior delivery pipe 2, the outside of heating layer 7 is covered with second
Heat insulation layer 8.In actual use, the first heat insulation layer 24 can avoid in heating layer 7 and outer delivery pipe 1 present invention
The heat transfer of raw material avoids the normal design mobility of raw material in interior delivery pipe 2 by shadow to the raw material in interior delivery pipe 2
It rings, further ensures that final product quality.Second heat insulation layer 8 can guarantee the whole heat insulation effect of entire print head 20, and externally
Boundary's object carries out effective protection, will not at least scald staff
Preferably, the upper end of connection block portion 711 is embedded at the lower end of the second heat insulation layer 8, connects the upper end of block portion 711
It is formed with the first convex block 7111 towards the second heat insulation layer 8, the lower end inside face of the second heat insulation layer 8, which is formed with, to be stuck in
Second convex block 81 of 7111 lower section of the first convex block.This structure can effectively fix flexible heater block 71.
Preferably, further include being used to store the material-storing box 9 for melting raw material in top；The is equipped in the side wall of material-storing box 9
Three heat insulation layers 91.In actual use, the raw material of thawing can be collected storage to the present invention by material-storing box 9, then
Outer delivery pipe 1 and interior delivery pipe 2 are fed, it can be ensured that the stability of feed.
Preferably, the top of material-storing box 9 is equipped with connecting plate 92, and the upper end of outer delivery pipe 1, which is equipped with, extends upwardly to connecting plate
First transmission segment 14 of 92 lower surfaces, the upper end of interior delivery pipe 2 are equipped with the second biography for upwardly extending and being through to 92 top of connecting plate
Dynamic section 23, the upper end of middle bar 3 are equipped with the drive link 33 for upwardly extending and being through to 92 top of connecting plate；Device of rotation driving 5 is defeated
Outlet is set to the motor of 92 upper surface of connecting plate downward, and device of rotation driving 5 is fixed on by fixed component 51 on connecting plate 92,
Lifting drive 6 includes that internal delivery pipe 2 carries out the first motor 61 of lifting driving and centering rod 3 carries out the of lifting driving
Two motors 62, first motor 61 and the second motor 62 are set to the upper surface of connecting plate 92 by output end in a manner of upward；
The output end of device of rotation driving 5 is fixedly and coaxially connected the first gear 52 in 92 lower section of connecting plate and is in
The second gear 53 of the top of connecting plate 92, the upper end medial surface of the first transmission segment 14 are formed with and first gear 52 matched the
The upper end peripheral surface of one tooth section 141, the second transmission segment 23 is formed with and 53 matched second tooth section 231 of second gear；
The output end of first motor 61 carries out lifting and driving by first level driver plate 611 to the second transmission segment 23, the
The output end of one motor 61 has been fixedly and coaxially connected the first drive screw 612, and first level driver plate 611 is formed with to be passed with first
612 matched first threaded hole of dynamic screw rod, the upper end medial surface of the second transmission segment 23 are formed with for first level driver plate 611
The annular groove 232 stretched into；The output end of second motor 62 carries out lifting biography by the second horizontal conveyor plate 621 to drive link 33
Dynamic, the output end of the second motor 62 has been fixedly and coaxially connected the second drive screw 622, the second horizontal conveyor plate 621 be formed with
Second drive screw, 622 matched second threaded hole, the upper end circumferential surface of drive link 33 are formed with for the second horizontal conveyor plate 621
The card slot 331 stretched into.In actual use, outer delivery pipe 1 and interior delivery pipe 2 share turning for same motor form to the present invention
Dynamic driving device 5, the with multiple vertical bar shaped teeth that device of rotation driving 5 passes through first gear 52 and the first transmission segment 14
One tooth section 141 matches, and carries out rotation driving to the first transmission segment 14, and then outer delivery pipe 1 is driven to rotate；Device of rotation driving
5 are matched by second gear 53 with the second tooth section 231 with multiple vertical bar shaped teeth of the second transmission segment 23, are passed to second
Dynamic section 23 carries out rotation driving, and then interior delivery pipe 2 is driven to rotate；Lifting drive 6 is passed by the first of first motor 61
Dynamic screw rod 612 carries out lifting driving to first level driver plate 611, and first level driver plate 611 is by being caught in the second transmission segment
The annular groove 232 of 23 upper ends come drive the second transmission segment 23 carry out lifting action, due to annular groove 232 be around one circle
Annular, the rotation of the second transmission segment 23 have no effect on the snap-fit relationship of first level driver plate 611 and annular groove 232, and
Second gear 53 is matched with the second tooth section 231 by the bar shaped tooth extended up and down, the lifting of the second transmission segment 23 also not shadow
Ring the matching relationship of 53 and second tooth section 231 of second gear；The second drive screw that lifting drive 6 passes through the second motor 62
622 pair of second horizontal conveyor plate carries out lifting driving, the second horizontal conveyor plate by be caught in the card slot 331 of 33 upper end of drive link come
Drive link 33 and middle bar 3 is 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
Changes or modifications all should be regarded as the patent category for not departing from the present invention.
Claims (8)
1. a kind of integrated three-dimensional printer of product, including printer main body and the print head on printer main body；Institute
Print head is stated to connect with movement device and be connected to the discharge port of heating box set on the top of print platform；It is characterized in that：Institute
It includes the outer delivery pipe in outside to state print head, and the interior delivery pipe being placed in outer delivery pipe is placed on outer delivery pipe and interior conveying
Middle bar in pipe, and it is connected to the discharging gate of outer delivery pipe lower end；
The outer delivery pipe includes being below relatively thin and being connect with the discharging gate in the first thicker outer transportation section of top
The second outer transportation section, and be connected between the first outer transportation section and the second outer transportation section and be from top to bottom tapered
Three outer transportation sections；The madial wall of the first outer transportation section is formed with the first conveying screw thread from top to bottom extended spirally；It is described
Second outer transportation section has first passage；
The interior delivery pipe include it is relatively thick in top and with transportation section in the described first outer transportation section corresponding first, and with
Transportation section in the medial surface of transportation section matches outside the third second；In described first the madial wall of transportation section be formed with by
The direction that extends spirally of the second conveying screw thread extended spirally under, the second conveying screw thread conveys screw thread with described first
To extend spirally direction opposite；In described second the lower end of transportation section be formed with for the middle bar pass through and with the first passage
Identical first port of diameter；
The discharging gate includes the first discharging section being connect with the lower end of the described second outer transportation section in top, and is below
And from top to bottom gradually to outer inclined second discharging section in delivery pipe side；First discharging section has and described first
Channel lower end is connected to and the identical second channel of diameter, and second discharging section has the be connected to the second channel lower end
Triple channel；
The middle bar includes being in top upper conveying rod segment corresponding with transportation section in described first, and be below and by upper
Across first port and the lower conveying rod segment stretched into the first passage and second channel is matched to lower matching；Under described
The material guide hole extended up and down is formed in conveying rod segment, the material guide hole includes in top and thinner feeding hole and being in down
Side is connected to feeding hole and thicker blanking hole, the feeding hole and blanking hole coaxial line；The upper end in the feeding hole is equipped
Multiple upper feeding holes gradually extended obliquely to the circumferential surface of the lower conveying rod segment from the bottom to top, multiple upper feeding holes are equal
It is even around distribution, the upper end of the blanking hole be equipped with it is multiple from the bottom to top gradually to the circumferential surface of the lower conveying rod segment obliquely
The lower feed opening extended, multiple lower feed opening uniform rings are around distribution；The feed inlet of the upper feeding hole and lower feed opening it
Between distance be more than first port the distance between upper end to lower end；
The upper end of the outer delivery pipe and interior delivery pipe is equipped with the device of rotation driving of both drivings rotation, the interior delivery pipe
The lifting drive of both drivings lifting is equipped with the upper end of middle bar；
The raw material being covered in external delivery pipe on the outside of the outer delivery pipe, which carries out heating, makes the temperature and mobility of this raw material
It is above the heating layer of the temperature and mobility of the raw material in the interior delivery pipe；The lower end of the heating layer is equipped with and beats lower layer
Print layer carries out the flexible heater block for being heated to melting；The flexible heater block includes connecting in top and the lower end of the heating layer
The connection block portion connect, and be below and from top to bottom gradually tilt the extension block extended towards the export direction of the third channel
Portion；Second discharging section includes the sloped sidewall in top, is below and towards the notch of the elongation block part, and
Two connection side walls being connected between sloped sidewall and notch；The elongation block part has in the top and notch
Ramp corresponding and that extension is from top to bottom gradually tilted towards the export direction of the third channel, and be below simultaneously
From top to bottom gradually the lower inclined plane extended is tilted towards the export direction of the third channel；The upper end of the ramp is resisted against institute
State the lower end of the first discharging section；The distance between the ramp and lower inclined plane from top to bottom taper into.
2. the integrated three-dimensional printer of a kind of product according to claim 1, it is characterised in that：First discharging section
Lower end there is the engagement edge that is in contact with the ramp, the vertical cross-section of the engagement edge is arc-shaped.
3. the integrated three-dimensional printer of a kind of product according to claim 2, it is characterised in that：The sloped sidewall,
The angle of ramp and lower inclined plane and horizontal plane becomes smaller successively, and the angle of the sloped sidewall and horizontal plane is 15-30 °, institute
The angle for stating lower inclined plane and horizontal plane is 5-15 °.
4. the integrated three-dimensional printer of a kind of product according to any one of claim 1-3, it is characterised in that：It is described
Heat generating components is equipped in heating layer, the heat generating components includes covering in the fever end layer of the heating layer lower end, the flexibility
Heat block is heat conduction block made of flexible ceramic, and the upper end of the flexible heater block and the lower surface of the fever end layer are close
Contact.
5. the integrated three-dimensional printer of a kind of product according to claim 4, it is characterised in that：The discharging gate it is upper
End is embedded at the lower end of the heating layer, and the upper end of first discharging section is resisted against the lower end of the described second outer transportation section, institute
The upper end circumferential surface for stating the first discharging section is formed with the first flange, and the lower end inside face of the heating layer, which is formed with, is stuck in described first
The second flange below flange.
6. the integrated three-dimensional printer of a kind of product according to claim 5, it is characterised in that：The interior delivery pipe
It is equipped with the first heat insulation layer in side wall, the second heat insulation layer is covered on the outside of the heating layer.
7. the integrated three-dimensional printer of a kind of product according to claim 6, it is characterised in that：The connection block portion
Upper end is embedded at the lower end of second heat insulation layer, and the upper end of the connection block portion is formed with towards second thermal insulation separation
First convex block of thermosphere, the lower end inside face of second heat insulation layer, which is formed with, is stuck in the second of first underbump
Convex block.
8. the integrated three-dimensional printer of a kind of product according to claim 7, it is characterised in that：Further include being in top
For storing the material-storing box for melting raw material；Third heat insulation layer is equipped in the side wall of the material-storing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810459495.2A CN108515691B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional inkjet printer of product integration |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810459495.2A CN108515691B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional inkjet printer of product integration |
| CN201710474013.6A CN107139452B (en) | 2017-06-21 | 2017-06-21 | A kind of firm three-dimensional printer of finished product |
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| CN201710474013.6A Division CN107139452B (en) | 2017-06-21 | 2017-06-21 | A kind of firm three-dimensional printer of finished product |
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| CN108515691A true CN108515691A (en) | 2018-09-11 |
| CN108515691B CN108515691B (en) | 2020-03-27 |
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| CN201810459514.1A Active CN108515692B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer that finished product wholeness is strong |
| CN201810459495.2A Active CN108515691B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional inkjet printer of product integration |
| CN201810459523.0A Active CN108656527B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer that finished product integration nature is strong |
| CN201810459524.5A Active CN108544750B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer without joint surface of product |
| CN201710474013.6A Active CN107139452B (en) | 2017-06-21 | 2017-06-21 | A kind of firm three-dimensional printer of finished product |
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| CN201810459523.0A Active CN108656527B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer that finished product integration nature is strong |
| CN201810459524.5A Active CN108544750B (en) | 2017-06-21 | 2017-06-21 | Three-dimensional printer without joint surface of product |
| CN201710474013.6A Active CN107139452B (en) | 2017-06-21 | 2017-06-21 | A kind of firm three-dimensional printer of finished product |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544750A (en) * | 2017-06-21 | 2018-09-18 | 泉州市比邻三维科技有限公司 | A kind of three-dimensional printer of the product without joint surface |
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| CN107618092B (en) * | 2017-10-20 | 2019-06-28 | 龙泉市金宏瓷业有限公司 | A kind of ceramics 3D printing material rapid solidification device |
| CN109203477B (en) * | 2018-11-21 | 2023-06-09 | 沙洲职业工学院 | 3D printing apparatus rapid heating feed pipeline |
| CN113635550A (en) * | 2021-08-13 | 2021-11-12 | 泉州市比邻三维科技有限公司 | Intelligent three-dimensional printing assembly line and method |
| CN113635549A (en) * | 2021-08-13 | 2021-11-12 | 泉州市比邻三维科技有限公司 | Efficient automatic three-dimensional printing system and method |
| CN114054780A (en) * | 2021-09-26 | 2022-02-18 | 上海工程技术大学 | Double-raw-material 3D printing method and printing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108515692B (en) | 2020-03-06 |
| CN108544750B (en) | 2020-04-24 |
| CN107139452B (en) | 2018-07-06 |
| CN107139452A (en) | 2017-09-08 |
| CN108656527B (en) | 2020-03-27 |
| CN108515691B (en) | 2020-03-27 |
| CN108544750A (en) | 2018-09-18 |
| CN108656527A (en) | 2018-10-16 |
| CN108515692A (en) | 2018-09-11 |
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