CN213137830U - Mix 3D who send silk and print nozzle structure - Google Patents
Mix 3D who send silk and print nozzle structure Download PDFInfo
- Publication number
- CN213137830U CN213137830U CN202021394844.6U CN202021394844U CN213137830U CN 213137830 U CN213137830 U CN 213137830U CN 202021394844 U CN202021394844 U CN 202021394844U CN 213137830 U CN213137830 U CN 213137830U
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- feeding
- printing
- consumables
- channel
- nozzle
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- 238000007639 printing Methods 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 238000010146 3D printing Methods 0.000 claims abstract description 14
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 12
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 12
- 238000005485 electric heating Methods 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 39
- 241000561734 Celosia cristata Species 0.000 claims description 8
- 210000001520 comb Anatomy 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000012780 transparent material Substances 0.000 claims description 5
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model discloses a 3D printing nozzle structure for mixed wire feeding, which comprises a feeding channel, wherein the feeding channel is Y-shaped, two branches are arranged at the upper end of the feeding channel, one branch is used for feeding thermoplastic consumables, the other branch is used for feeding long fiber consumables, a feeding device is arranged above the two branches, the outer edge at the bottom end of the feeding channel is in interference fit with the top end of an inner tube of a throat pipe, the lower end of the throat pipe is in threaded connection with a printing consumables conveying channel, the outer surface of the middle lower part of the printing consumables conveying channel is provided with an electric heating device, the bottom end of the printing consumables conveying channel is in threaded connection with a tip nozzle, the bottom of the tip nozzle is provided with an extrusion head, the utility model discloses a feeding channel is provided with two branches, so that the thermoplastic consumables and the long fiber consumables are fully mixed, the formed product is also of better quality.
Description
Technical Field
The utility model belongs to the technical field of 3D printing apparatus, concretely relates to mix 3D who send silk and print nozzle structure.
Background
FDM (fused deposition printing) modeling is one of the most common ways of 3D printing. The consumable materials are melted and extruded through a high-temperature nozzle, and are accumulated, cooled and solidified on a platform or a processed product layer by layer to obtain an entity.
In the 3D printing process, the melting silk material is extruded along the nozzle, moves along the printing orbit that has predetermine, places the material that melts in accurate position, and the melting printing consumptive material is cooled and is condensed rapidly when contacting print platform, and the consumptive material deposits on the print platform layer by layer, accomplishes one deck picture layer after, constructs platform downstream and repeats this process to the structure has three-dimensional structure's product.
In order to meet daily requirements and convenience, a single-wire-feeding fused deposition printing mode is used most of the time, and can meet the requirements of common occasions, however, the single-wire-feeding fused deposition printing mode has the following defects:
(1) the 3D printed product has low strength and toughness, and can not be applied to occasions with higher strength.
(2)3D printing materials are limited and materials that can be used for 3D printing are very limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mix 3D who send silk and print nozzle structure to solve the problem that proposes among the above-mentioned background art.
A mixed wire feeding 3D printing nozzle structure comprises a feeding port, a feeding device, a throat pipe, a rubber ring, an electric heating device, a tip nozzle, a feeding channel, a heating wire, a printing consumable material conveying channel, an extrusion head, a fixed pulley and a driving wheel, wherein the feeding channel is Y-shaped, two branches are arranged at the upper end of the feeding channel, one branch is used for feeding thermoplastic consumable materials, the other branch is used for feeding long fiber consumable materials, the feeding device is arranged above the two branches, the feeding device is provided with the feeding port above the feeding device and comprises the fixed pulley and a sawtooth-shaped rotating wheel, the sawtooth-shaped rotating wheel is driven by a servo motor, a distance is arranged between the sawtooth-shaped rotating wheel and the fixed pulley, the rubber ring is sleeved at the outer edge of the bottom end of the feeding channel, the outer edge of the rubber ring is in contact with the top end of the inner, the surface of the middle lower part of the printing consumable conveying channel is provided with an electric heating device, the bottom end of the printing consumable conveying channel is in threaded connection with a tip nozzle, and an extrusion head is arranged at the bottom of the tip nozzle.
In this embodiment: the electric heating device is electrically connected with an external power supply through a heating wire.
In this embodiment: the printing consumables conveying channel inner tube is provided with the teflon coating.
In this embodiment: the bottom end of the feeding channel is in interference fit with the top end of the inner tube of the throat tube through a rubber ring.
In this embodiment: the inner diameter of the inlet end of the feeding channel is 7-9 mm, the inner diameter of the outlet end of the feeding channel is 3.5-4.5 mm, the included angle of two branches of the feeding channel is 20-30 degrees, and the feeding channel is made of transparent materials.
In this embodiment: the pipe diameters of the inner pipes at the upper ends of the throat pipe, the printing consumable conveying channel and the pointed nozzle are 3.5-4.5 mm.
In this embodiment: the pipe diameter of the inner pipe of the extrusion head positioned at the lower end of the tip nozzle is smaller than that of the inner pipe at the upper end of the tip nozzle.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
(1) through setting up "Y" shape pay-off passageway, two way feeding branches and a way ejection of compact branch, be convenient for thermoplasticity consumptive material and long fiber consumptive material to feed simultaneously and intensive mixing, pay-off passageway entrance point pipe diameter is big, the exit end pipe diameter is little, be favorable to thermoplasticity consumptive material and long fiber consumptive material to combine closely, and fiber material has the toughness better than thermoplasticity consumptive material, compare traditional single advancing the silk structure, can play the effect of reinforceing the silk material, the product that takes shape is also of higher quality, set up two way branches simultaneously and also be convenient for respectively control the feed rate of two consumptive materials, different feed rates, the long fiber consumptive material is different in the thermoplasticity consumptive material impregnation degree of melting, namely the long fiber consumptive material accounts for than the difference in the;
(2) the feeding channel is made of transparent materials, so that the blanking speed of long fiber consumables and thermoplastic consumables in the feeding channel can be observed conveniently, the feeding speed of the feeding device can be reduced when the blanking speed is slow, and consumable blockage is avoided;
(3) through changing the cockscomb structure runner of equidimension not to adjust cockscomb structure runner and fixed pulley distance in front, better adaptation different diameter size's thermoplasticity consumptive material and long fiber consumptive material.
Description of the drawings:
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of the external structure of the present invention;
FIG. 3 is a schematic view of the connection between the feeding channel and the throat of the present invention;
FIG. 4 is a schematic view of the connection between the throat and the printing consumables conveying channel;
FIG. 5 is a schematic view of the connection between the printing consumables conveying channel and the tip nozzle;
reference numerals: the device comprises a feeding hole 1, a feeding device 2, a throat pipe 3, a rubber ring 4, an electric heating device 5, a pointed nozzle 6, a feeding channel 7, a heating wire 8, a printing consumables conveying channel 9, an extrusion head 10, a fixed pulley 11 and a sawtooth-shaped rotating wheel 12.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to fig. 1 to 5.
The utility model provides a mix 3D who send a printing nozzle structure, includes feed inlet 1, material feeding unit 2, choke 3, rubber circle 4, electric heater unit 5, tip nozzle 6, pay-off passageway 7, heating wire 8, printing consumables transfer passage 9, extrudes first 10, fixed pulley 11 and cockscomb structure runner 12, pay-off passageway 7 shape is "Y" shape, and pay-off passageway 7 upper end is provided with two way branches, and branch is used for feeding thermoplasticity consumptive material all the way, and another way branch is used for feeding long fiber consumptive material, all sets up material feeding unit 2 above two way branches, material feeding unit 2 top is provided with feed inlet 1, material feeding unit 2 includes fixed pulley 11 and cockscomb structure runner 12, cockscomb structure runner 12 is driven by servo motor, not shown in the servo motor figure, servo motor can control cockscomb structure runner 12 rotation rate, one section distance in the interval between cockscomb structure runner 12, the rotation speed of the serrated gear 12 is controlled by a servo motor, so that the blanking speed of consumables and different blanking speeds can be controlled, the impregnation degree of long fiber consumables in molten thermoplastic consumables is different, namely the components of the long fiber consumables in the molten thermoplastic consumables are different, the fiber materials have better toughness than the thermoplastic consumables, so that the wire strength extruded by the tip nozzle 6 is different, the rubber ring 4 is sleeved on the outer edge of the bottom end of the feeding channel 7, the outer edge of the rubber ring 4 is in contact with the top end of the inner tube of the throat tube 3, the lower end of the throat tube 3 is in threaded connection with a printing consumables conveying channel 9, the outer surface of the middle lower part of the printing consumables conveying channel 9 is provided with an electric heating device 5, the tip nozzle 6 is in threaded connection with the bottom end of the printing consumables conveying channel 9, the installation and the disassembly are convenient, and the interiors of the throat tube 3, the printing consumables conveying channel 9, the bottom of the pointed nozzle 6 is provided with an extrusion head 10, and under the action of the extrusion head 10, thin and uniform wires can be extruded.
In this embodiment: the electric heating device 5 is electrically connected with an external power supply through a heating wire 8.
In this embodiment: 9 inner tubes of printing consumables transfer passage are provided with the teflon coating, the teflon coating can reduce the consumptive material and remain on the pipe wall, makes the consumptive material difficult for blockking up, the more smooth and easy melting consumptive material of extruding.
In this embodiment: the bottom end of the feeding channel 7 is in interference fit with the top end of the inner tube of the throat tube 3 through the rubber ring 4.
In this embodiment: 7 entrance point internal diameters of pay-off passageway are 7 ~ 9mm, 7 exit end internal diameters of pay-off passageway are 3.5 ~ 4.5mm, 7 two way branch contained angles of pay-off passageway are 20 ~ 30 and pay-off passageway 7 is prepared by transparent material, 7 entrance point pipe diameters of pay-off passageway are big, the exit end pipe diameter is little, be favorable to thermoplasticity consumptive material and long fiber consumptive material to combine closely, compare traditional single silk structure of advancing, can play the effect of reinforceing the silk material, the product that takes shape is also of better quality, and pay-off passageway 7 is prepared by transparent material, be convenient for observe long fiber consumptive material and thermoplasticity consumptive material unloading speed in pay-off passageway 7, when unloading speed is slow, can reduce 2 feed speeds.
In this embodiment: the pipe diameters of inner pipes at the upper ends of the throat pipe 3, the printing consumable conveying channel 9 and the pointed nozzle 6 are 3.5-4.5 mm.
In this embodiment: the diameter of the inner pipe of the extrusion head 10 positioned at the lower end of the pointed nozzle 6 is smaller than that of the inner pipe at the upper end of the pointed nozzle 6, so that thin and uniform wires can be conveniently extruded.
The utility model discloses a theory of operation is: thermoplastic consumables and long fiber consumables are respectively added through a feed inlet 1 above a feeding channel 7, a feeding device 2 drives a serrated rotating wheel 12 to rotate by a servo motor, the feeding speed is controlled by controlling the rotation speed of the serrated rotating wheel 12, the thermoplastic consumables and the long fiber consumables are tightly attached together in the feeding channel 7 after entering the feeding channel 7, the inner wall of the feeding channel 7 is polished, the included angle of two branches is moderate, the consumables are not easy to block, the two consumables can conveniently enter and mix, after the consumables enter an electric heating device 5, the electric heating device 5 starts to heat after being connected with a power supply through a heating wire 8, the consumables are melted, the long fiber consumables are fully impregnated in the thermoplastic consumables, the fiber materials have better toughness than the thermoplastic consumables, compared with a traditional single wire feeding structure, the wire strengthening effect can be achieved, and the formed product is better in quality, then enters a pointed nozzle 6, and finally, under the action of an extrusion head 10, thin and uniform silk materials are extruded and printed on a printing platform after flowing out.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.
Claims (7)
1. The utility model provides a mix 3D printing nozzle structure of sending a, includes feed inlet (1), material feeding unit (2), choke (3), rubber circle (4), electric heater unit (5), tip nozzle (6), pay-off passageway (7), heating wire (8), printing consumables transfer passage (9), extrudes head (10), fixed pulley (11) and cockscomb structure runner (12), its characterized in that: the feeding channel (7) is Y-shaped, two branches are arranged at the upper end of the feeding channel (7), one branch is used for feeding thermoplastic consumables, the other branch is used for feeding long fiber consumables, the feeding device (2) is arranged above the two branches, a feeding port (1) is arranged above the feeding device (2), the feeding device (2) comprises a fixed pulley (11) and a serrated runner (12), the serrated runner (12) is driven by a servo motor, a distance is arranged between the serrated runner (12) and the fixed pulley (11), a rubber ring (4) is sleeved on the outer edge of the bottom end of the feeding channel (7), the outer edge of the rubber ring (4) is in contact with the top end of the inner tube of the throat tube (3), the lower end of the throat tube (3) is in threaded connection with a printing consumables conveying channel (9), and an electric heating device (5) is arranged on the outer surface of the middle lower part of the printing, the bottom end of the printing consumable conveying channel (9) is in threaded connection with a pointed nozzle (6), and an extrusion head (10) is arranged at the bottom of the pointed nozzle (6).
2. The hybrid wire feed 3D printing nozzle structure of claim 1, wherein: the electric heating device (5) is electrically connected with an external power supply through a heating wire (8).
3. The hybrid wire feed 3D printing nozzle structure of claim 1, wherein: the printing consumables conveying channel (9) inner tube is provided with the teflon coating.
4. The hybrid wire feed 3D printing nozzle structure of claim 1, wherein: the bottom end of the feeding channel (7) is in interference fit with the top end of the inner tube of the throat tube (3) through a rubber ring (4).
5. The hybrid wire feed 3D printing nozzle structure of claim 1, wherein: the inner diameter of the inlet end of the feeding channel (7) is 7-9 mm, the inner diameter of the outlet end of the feeding channel (7) is 3.5-4.5 mm, the included angles of two branches of the feeding channel (7) are 20-30 degrees, and the feeding channel (7) is made of transparent materials.
6. The hybrid wire feed 3D printing nozzle structure of claim 1, wherein: the inner tube diameter of the upper ends of the throat pipe (3), the printing consumable material conveying channel (9) and the pointed nozzle (6) is 3.5-4.5 mm.
7. The hybrid wire feed 3D printing nozzle structure of claim 1, wherein: the pipe diameter of the inner pipe of the extrusion head (10) positioned at the lower end of the pointed nozzle (6) is smaller than that of the inner pipe at the upper end of the pointed nozzle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021394844.6U CN213137830U (en) | 2020-07-16 | 2020-07-16 | Mix 3D who send silk and print nozzle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021394844.6U CN213137830U (en) | 2020-07-16 | 2020-07-16 | Mix 3D who send silk and print nozzle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213137830U true CN213137830U (en) | 2021-05-07 |
Family
ID=75731505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021394844.6U Expired - Fee Related CN213137830U (en) | 2020-07-16 | 2020-07-16 | Mix 3D who send silk and print nozzle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213137830U (en) |
-
2020
- 2020-07-16 CN CN202021394844.6U patent/CN213137830U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210507 |