CN212194238U - Variable-diameter nozzle structure of 3D printer - Google Patents
Variable-diameter nozzle structure of 3D printer Download PDFInfo
- Publication number
- CN212194238U CN212194238U CN202020455803.7U CN202020455803U CN212194238U CN 212194238 U CN212194238 U CN 212194238U CN 202020455803 U CN202020455803 U CN 202020455803U CN 212194238 U CN212194238 U CN 212194238U
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- nozzle
- sectors
- shell
- variable diameter
- inner shell
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- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 8
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
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Abstract
The utility model discloses a variable diameter nozzle structure of a 3D printer, which comprises a nozzle seat; the nozzle inner shell is communicated with the nozzle seat, and a conical nozzle is arranged below the nozzle inner shell; the nozzle outer shell is made of shape memory alloy and arranged outside the nozzle inner shell, and a conical nozzle matched with the nozzle is arranged below the nozzle outer shell and is tightly attached to the nozzle; and the heating device is arranged on the nozzle shell. Adopt the utility model discloses a variable diameter nozzle structure of 3D printer enables the adjustment of 3D printer realization nozzle diameter under the condition of not shutting down.
Description
Technical Field
The utility model relates to a variable diameter nozzle structure of 3D printer belongs to 3D and prints technical field.
Background
The 3D printing technology is a technology for directly printing a three-dimensional model drawn by a computer into a solid model by adopting a layered discrete and layer-by-layer printing method. The diameter of 3D printer nozzle influences the quality of printing the model, and the nozzle diameter is little, and the silk that goes out among the printing process is thinner, and the model precision is high, but prints time length, and is inefficient, and the nozzle diameter is big, and the silk that goes out among the printing process is thick, and the model precision is low, but prints time length, and is efficient to the different structure of same model also has different required precision. Therefore, researchers have been searching for a method with efficiency and precision, and a multi-nozzle device gradually appears, a plurality of nozzles with different apertures are installed at the position of a spray head, switching of different nozzles in the printing process is achieved by using a conversion device such as a gear, and the switching of the nozzles affects the continuity of printing, so that structural defects are easily caused when the local part of a model is excessively heated.
Disclosure of Invention
The invention of the utility model aims to: to the problem that above-mentioned exists, a variable diameter nozzle structure of 3D printer is provided, the utility model discloses enable the adjustment of 3D printer realization nozzle diameter under the condition of not shutting down.
The utility model adopts the technical scheme as follows:
a variable-diameter nozzle structure of a 3D printer comprises a nozzle seat;
the nozzle inner shell is communicated with the nozzle seat, and a conical nozzle is arranged below the nozzle inner shell;
the nozzle outer shell is made of shape memory alloy and arranged outside the nozzle inner shell, and a conical nozzle matched with the nozzle is arranged below the nozzle outer shell and is tightly attached to the nozzle;
and the heating device is arranged on the nozzle shell.
The utility model discloses in, adopted shape memory alloy to make the nozzle shell, heated the nozzle shell through control heating device, along with nozzle shell temperature rise, the diameter of the awl mouth that shape memory alloy made can increase along with the temperature rise gradually, and the awl mouth links firmly and closely laminates with the nozzle, and then drives the nozzle aperture and enlarges, thereby the utility model discloses a hollow realization to nozzle shell temperature is to the continuous control of 3D printer nozzle diameter.
Further, the nozzle is shown as being comprised of a plurality of nozzle sectors.
Furthermore, the nozzle is formed by continuously arranging a plurality of nozzle sectors to form a complete conical surface.
Furthermore, the nozzle is formed by arranging a plurality of nozzle sectors at intervals to form an incomplete conical surface.
Further, the plurality of nozzle sectors constituting the nozzle are the same sector.
Furthermore, the plurality of nozzle sectors are uniformly distributed to form the nozzle.
In the scheme, the nozzle is divided into a plurality of nozzle sectors, the nozzle sectors can be outwards expanded along the connection part with the nozzle inner shell, so that the nozzle outer shell can more easily drive the nozzle to expand the aperture.
Further, the cone nozzle is composed of a plurality of cone nozzle sectors, and further, the cone nozzle is composed of a plurality of same cone nozzle sectors.
Furthermore, the cone nozzle is a complete cone surface formed by continuously arranging a plurality of cone nozzle sectors.
Furthermore, the cone nozzle is composed of a plurality of cone nozzle sectors which are arranged at intervals to form an incomplete cone surface.
Further, the nozzle sector and the cone nozzle sector do not coincide in edge.
Furthermore, the cone nozzle sector is connected with the middle parts of the two adjacent nozzle sectors.
In the scheme, the cone nozzle is divided into a plurality of cone nozzle sectors, the cone nozzle sectors can be expanded outwards along the joint of the cone nozzle and the nozzle shell, and the aperture of the cone nozzle made of the shape memory alloy is easier to expand along with the temperature rise; because the edges of the nozzle sector and the cone nozzle sector are overlapped, when the aperture of the cone nozzle and the nozzle is enlarged, the nozzle sector and the cone nozzle sector are not overlapped because of the crack to cause material leakage, and the aperture of the nozzle and the cone nozzle is enlarged without material leakage.
Further, the nozzle inner shell is detachably connected with the nozzle seat.
Further, the outer diameter of the upper part of the inner shell of the nozzle is larger than that of the lower part.
Further, the thickness of the nozzle outer shell is the difference of the outer diameter diameters of the lower part and the lower part of the nozzle inner shell.
In the above solution, the surfaces of the nozzle outer shell and the nozzle inner shell are made flush up and down.
Further, the heating devices are uniformly distributed on the nozzle shell.
In the above scheme, heating is made more uniform, and temperature control is made easier.
Furthermore, the material of the nozzle inner shell is a heat insulating material.
In the above scheme, the heating of the nozzle shell does not heat the material.
The utility model discloses a variable diameter nozzle structure of 3D printer, through shape memory alloy's shape memory function for the grow in the aperture of awl mouth aperture grow and the tractive nozzle on the nozzle shell when heaing up realizes the adjustment of 3D printer realization nozzle diameter under the circumstances of not shutting down.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. continuous change of the nozzle diameter is realized, and the nozzle diameter with any size can be obtained in a certain range.
2. The 3D printer can adjust the diameter of the nozzle without stopping, and the printing quality of the model is improved.
Drawings
FIG. 1 is a schematic view of a variable diameter nozzle structure of a 3D printer;
FIG. 2 is a schematic view of an inner housing construction of the nozzle;
FIG. 3 is a schematic view of a first connection of the nozzle to the cone;
FIG. 4 is a schematic view of a second connection of the nozzle to the cone;
FIG. 5 is a schematic view of a third connection of the nozzle to the cone;
fig. 6 is a schematic view of a fourth mode of connection of the nozzle to the cone.
The labels in the figure are: 1-nozzle seat, 2-nozzle inner shell, 3-nozzle outer shell, 4-heating device, 21-nozzle, 22-nozzle sector, 31-cone nozzle and 32-cone nozzle sector.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1, the variable diameter nozzle structure of the 3D printer of the present embodiment includes a nozzle holder 1;
the nozzle inner shell 2 is communicated with the nozzle seat 1, and a conical nozzle 21 is arranged below the nozzle inner shell 2;
the nozzle outer shell 3 is made of shape memory alloy and is arranged outside the nozzle inner shell 2, and a cone nozzle 31 matched with the nozzle 21 is arranged below the nozzle outer shell 3 and is tightly attached to the nozzle 21;
and a heating device 4 provided on the nozzle housing 3.
Further, the nozzle inner shell 2 is detachably connected with the nozzle holder 1.
Further, as shown in fig. 2, the outer diameter of the upper part of the nozzle inner casing 2 is larger than that of the lower part, and the thickness of the nozzle outer casing 3 is the difference between the outer diameters of the lower part and the lower part of the nozzle inner casing 2, so that the surfaces of the nozzle outer casing 3 and the nozzle inner casing 2 are flush with each other.
Further, the heating means 4 are evenly distributed over the nozzle housing 3, so that heating is more uniform and temperature control is easier.
Further, the material of the nozzle inner casing 2 is a heat insulating material, so that the material is not heated by heating the nozzle outer casing 3.
Further, as shown in fig. 3, the nozzle 21 is formed by continuously arranging 8 identical nozzle sectors 22 to form a complete conical surface, the cone mouth 31 is formed by continuously arranging 8 identical cone mouth sectors 32 to form a complete conical surface, and the cone mouth sectors 32 connect the middle parts of two adjacent nozzle sectors 22.
Further, in another embodiment, as shown in fig. 4, the nozzle 21 is composed of 4 identical nozzle sectors 22 arranged at intervals to form an incomplete conical surface, the cone mouth 31 is composed of 4 identical cone mouth sectors 32 arranged continuously to form a complete conical surface, and the cone mouth sectors 32 connect the middle portions of two adjacent nozzle sectors 22.
Further, in another embodiment, as shown in fig. 5, the nozzle 21 is formed by continuously arranging 4 identical nozzle sectors 22 to form a complete conical surface, the cone mouth 31 is formed by arranging 4 identical cone mouth sectors 32 at intervals to form an incomplete conical surface, and the cone mouth sectors 32 connect the middle parts of two adjacent nozzle sectors 22.
Further, in another embodiment, as shown in fig. 6, the nozzle 21 is composed of an incomplete conical surface formed by arranging 4 identical nozzle sectors 22 at intervals, the cone mouth 31 is composed of an incomplete conical surface formed by arranging 4 identical cone mouth sectors 32 at intervals, and the cone mouth sectors 32 connect the side portions of two adjacent nozzle sectors 22.
Wherein the number of nozzle sectors 22 and cone nozzle sectors 32 may be other numbers, such as other numbers 4, 5, 6, 7, 9, 10, etc., and is not limited to the number of the present embodiment; the sizes of the fan surfaces may be different, and the connection position of the cone nozzle fan surface 32 to the nozzle fan surface 22 is not necessarily the middle part, so long as the edges of the nozzle fan surface 22 and the cone nozzle fan surface 32 are not overlapped.
In the embodiment, the heating device 4 heats the nozzle housing 3 to raise the temperature, the outward expanding aperture of the cone nozzle sector 32 made of the shape memory metal is increased, the material in the nozzle 21 extrudes the nozzle sector 22 to expand outward, so that the aperture of the nozzle 21 is increased, and the diameter of the nozzle 21 of the 3D printer is adjusted without stopping the printer.
In conclusion, the variable-diameter nozzle structure of the 3D printer realizes the continuous change of the nozzle diameter, and can obtain the nozzle diameter with any size in a certain range; the 3D printer can adjust the diameter of the nozzle without stopping, and the printing quality of the model is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a variable diameter nozzle structure of 3D printer which characterized in that: comprises a nozzle holder (1); the nozzle inner shell (2) is communicated with the nozzle seat (1), and a conical nozzle (21) is arranged below the nozzle inner shell (2);
the nozzle outer shell (3) is made of shape memory alloy and is arranged outside the nozzle inner shell (2), and a conical nozzle (31) matched with the nozzle (21) is arranged below the nozzle outer shell (3) and is tightly attached to the nozzle (21);
and the heating device (4) is arranged on the nozzle shell (3).
2. The variable diameter nozzle structure of a 3D printer according to claim 1, wherein: the nozzle (21) is formed by continuously arranging a plurality of nozzle sectors (22) to form a complete conical surface.
3. The variable diameter nozzle structure of a 3D printer according to claim 1, wherein: the nozzle (21) is formed by arranging a plurality of nozzle sectors (22) at intervals to form an incomplete conical surface.
4. The variable diameter nozzle structure of a 3D printer according to claim 2 or 3, wherein: the nozzle sectors (22) forming the nozzle (21) are identical sectors.
5. The variable diameter nozzle structure of a 3D printer according to claim 3, wherein: the nozzle sectors (22) are distributed uniformly to form a nozzle (21).
6. The variable diameter nozzle structure of a 3D printer according to claim 1, wherein: the nozzle inner shell (2) is detachably connected with the nozzle seat (1).
7. The variable diameter nozzle structure of a 3D printer according to claim 1, wherein: the outer diameter of the upper part of the nozzle inner shell (2) is larger than that of the lower part.
8. The variable diameter nozzle structure of a 3D printer according to claim 7, wherein: the thickness of the nozzle outer shell (3) is the difference between the outer diameters of the lower part and the lower part of the nozzle inner shell (2).
9. The variable diameter nozzle structure of a 3D printer according to claim 1, wherein: the heating devices (4) are uniformly distributed on the nozzle shell (3).
10. The variable diameter nozzle structure of a 3D printer according to claim 1, wherein: the nozzle inner shell (2) is made of a heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455803.7U CN212194238U (en) | 2020-04-01 | 2020-04-01 | Variable-diameter nozzle structure of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455803.7U CN212194238U (en) | 2020-04-01 | 2020-04-01 | Variable-diameter nozzle structure of 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212194238U true CN212194238U (en) | 2020-12-22 |
Family
ID=73828159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020455803.7U Expired - Fee Related CN212194238U (en) | 2020-04-01 | 2020-04-01 | Variable-diameter nozzle structure of 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212194238U (en) |
-
2020
- 2020-04-01 CN CN202020455803.7U patent/CN212194238U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201222 |