CN109703022B - Selectable single color mixing double-outlet 3D printing spray head device - Google Patents
Selectable single color mixing double-outlet 3D printing spray head device Download PDFInfo
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- CN109703022B CN109703022B CN201910034134.8A CN201910034134A CN109703022B CN 109703022 B CN109703022 B CN 109703022B CN 201910034134 A CN201910034134 A CN 201910034134A CN 109703022 B CN109703022 B CN 109703022B
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Abstract
The invention relates to a selectable single color mixing double-outlet 3D printing spray head device which comprises a heating block and a heat dissipation block, wherein nozzles are arranged on the heating block, the heat dissipation block is connected with a conveying pipe for conveying printing wires, the heating block and the heat dissipation block are connected through a throat, the conveying pipe and the throat are respectively provided with a plurality of pipes, the quantity of the conveying pipe is the same as that of the throat, the throats are communicated with the conveying pipe and the nozzles, mixing cavities are arranged in the heating block, at least two mixing cavities are arranged, each mixing cavity is at least connected with two throats, each mixing cavity is connected with at least one nozzle, and materials in the conveying pipe are sprayed out through the nozzles after entering the mixing cavities in the heating block through the throats. The spray head can reduce the manufacturing cost of 3D printing equipment and 3D printing cost, and one spray head can realize the switching among monochromatic, mixed color and color matching printing.
Description
Technical Field
The invention relates to a printing spray head, in particular to an optional single color mixing double-outlet 3D printing spray head device.
Background
When 3D printing is performed by using the fused deposition modeling technology, the 3D printing nozzle is generally single-nozzle single-color printing, and when a model with color mixture and double colors and artistic appearance is to be printed, the 3D printing nozzle with the function is replaced by the 3D printing nozzle with the function or a 3D printer with the function is purchased, which obviously increases the cost, the price of the printer with the function is quite high, and a second printer and a third printer are also vacated.
Disclosure of Invention
The invention provides an optional single color mixing double-outlet 3D printing spray head device for solving the problem that a printer needs to be switched in single color mixing printing in the prior art, which reduces the manufacturing cost of 3D printing equipment and 3D printing cost, and one spray head can realize the switching among single color, color mixing and color matching printing.
The technical scheme adopted by the invention is as follows: the utility model provides a two 3D of optional list colour mixture prints shower nozzle device, includes heating block and radiating block, be equipped with the nozzle on the heating block, the radiating block is connected with the conveying pipeline that is used for the transmission printing silk, the heating block with the radiating block passes through the venturi connection, the conveying pipeline with the venturi all is equipped with a plurality of, the conveying pipeline with the venturi quantity is the same, the venturi intercommunication the conveying pipeline with the nozzle be equipped with the mixing chamber in the heating block, the mixing chamber is equipped with two at least, every mixing chamber is connected with two at least the venturi, every mixing chamber is connected with at least one nozzle, the material in the conveying pipeline passes through the venturi entering mix in the heating block is carried out the compounding back and is passed through the nozzle blowout.
Further, the outer wall of the throat is provided with a concave-convex heat dissipation mechanism for reducing heat transferred to the heat dissipation block.
Further, the heat dissipation block and the heating block are arranged at intervals.
Further, the throat is connected with the conveying pipe from one side of the radiating block, which is close to the heating block, to one side of the radiating block, which is far away from the heating block, the throat is fixed on the radiating block through a fastening screw arranged on the side wall of the radiating block, and the fastening screw radially fastens the throat.
Further, the conveying pipe is connected with the radiating block through a quick connector.
Furthermore, the number of the throats is 4, and every two throats are connected to the same mixing cavity.
Further, a plurality of first through holes are formed in the heating block, threads are formed in the inner wall of each first through hole, the first through holes are perpendicular to the throat pipe, two adjusting nuts are respectively arranged at two ends of each first through hole, a cavity between each adjusting nut and the heating block forms a mixing cavity, the adjusting nuts are rotated, and the opening of the throat pipe to the mixing cavity is adjusted.
Further, a plurality of radiating holes are formed in the radiating block, one end of each radiating hole is led to the side wall of the throat, and the other end of each radiating hole is led to the outside of the radiating block.
Further, a second through hole and a third through hole are formed in the heating block, a heating rod for heating the heating block is arranged in the second through hole, and a thermometer for measuring temperature is arranged in the third through hole.
Further, the second through holes are arranged in parallel with the mixing cavities, and the distances between the second through holes and the mixing cavities are the same.
Further, one side of the heating block, which is close to the radiating block, is provided with a high Wen Jiaopi and a heat insulation sheet, the high-temperature rubber is used for avoiding printing influence caused by unexpected leakage at the junction of the throat, and also avoiding direct contact between the heat insulation sheet and the heating block, wherein the heat insulation sheet is used for preventing heat of the heating block from directly radiating upwards.
The beneficial effects of the invention include:
1) The spray head has the effect of one spray with multiple purposes, and the cost of other 3D printing equipment is saved;
2) The functions are diversified, the functions of single-color, mixed-color and color matching printing are realized by controlling the spraying amount of the two spray heads, double-gradient-color printing can be also performed, different effects can be seen by printed artworks at different angles, and the value of the artworks is greatly improved;
3) When the mixed color printing model is carried out, the setting of the double-nozzle double-mixing cavity can realize the same gradient color effect as that in the market, and the gradient color effect in the market is that one color is gradually changed into the other color, only one gradient can be realized, and the invention can simultaneously realize two gradient colors, namely, the two mixing cavities can simultaneously work to realize double gradient colors; that is, two sets of gradual changes from one color to the other can be seen from one end of a mold;
4) Function is selectable, the opening of the throat pipe to the mixing cavity is adjusted by changing the position of the adjusting nut in the mixing cavity, and then the feeding amount is adjusted; when only one nozzle is suitable, the opening of the throat towards the mixing cavity can be closed by adjusting the nut, so that the sealing is realized, and the slurry melted in the throat is prevented from continuously dripping into the mixing cavity.
5) The color mixing printing is controllable at any time, and the common color mixing printing is performed by a color mixing code generated by upper computer software;
6) The invention relates to a printing color matching device, which is characterized in that a double-nozzle printing device is arranged on a printing head, a double-nozzle printing device is arranged on the printing head, and a double-nozzle printing device is arranged on the printing head. Compared with the prior art, the invention has the advantages that one heating device is omitted, color matching printing can be realized, and electric energy is saved. Under the same double-spray printing function, the invention has one heating device less than a double-spray printer, thereby greatly saving electric energy;
7) The heat dissipation mechanism in the invention can fully dissipate heat of the non-heating part, and can prevent the printing wire from expanding and deforming when the printing wire does not enter the heating block, thereby effectively avoiding the wire blocking phenomenon.
Drawings
FIG. 1 is a schematic view of a print head according to the present invention;
FIG. 2 is a cross-sectional view of a print head of the present invention;
FIG. 3 is a bottom view of the heating block of the present invention;
in the figure, 1, a heat dissipation block, 2, a heating block, 3, a throat pipe, 301, a first throat pipe, 302, a second throat pipe, 4, a nozzle, 5, a mixing cavity, 6, an adjusting nut, 7, a heat insulation pad, 8, a first through hole, 9, a second through hole, 10, a third through hole, 11, a fourth through hole, 12, a first fastening screw, 13, a second fastening screw, 14, a quick connector, 15, a height Wen Jiaopi, 16 and a heat dissipation hole.
Description of the embodiments
The invention will be explained in further detail below with reference to the drawings and the specific examples, but it should be understood that the scope of the invention is not limited to the specific embodiments.
As shown in fig. 1-2, the printing nozzle in the invention comprises a heat dissipation block 1 and a heating block 2 which are both in a square structure, wherein the heat dissipation block 1 and the heating block 2 are connected through a throat pipe 3, and in order to reduce the heat transferred from the heating block 2 to the heat dissipation block 1 as much as possible, the heat dissipation block 1 and the heating block 2 are arranged at intervals, and the surface of the throat pipe 3 connecting the heat dissipation block 1 and the heating block 2 is provided with a concave-convex heat dissipation structure. And a heat insulation pad 7 is arranged on one side of the heating block 2 facing the heat dissipation block 1 to prevent heat of the heating block 2 from being dissipated to the direction of the heat dissipation block 1.
In addition, in order to increase the heat dissipation effect of the heat dissipation block 1, heat dissipation holes leading to the outside of the heat dissipation block 1 are formed in the heat dissipation block 1, and the heat dissipation holes can be formed as holes which are mutually staggered and communicated, so that heat in any hole is provided with a plurality of outlets, one end of the heat dissipation hole can be led to the side wall of the throat pipe 3, the other end of the heat dissipation hole is led to the outside of the heat dissipation block 1, and the heat at the throat pipe 3 can be directly dissipated through the heat dissipation Kong Sanfa. The radiator block 1 is connected with a radiator fan, and the radiator block 1 is provided with mounting holes for fixing the spray head on other devices. The high Wen Jiaopi is closely attached to the heating block 2, the heat insulation sheet is arranged on the high-temperature rubber, the high Wen Jiaopi is used for avoiding printing influence caused by unexpected leakage at the joint of the throat pipe 3, the heat insulation sheet is also prevented from being in direct contact with the heating block 2, and the heat insulation sheet is used for preventing heat of the heating block 2 from being directly emitted upwards.
The heat dissipation piece 1 is provided with quick-operation joint in the one side of heating piece 2 dorsad, quick-operation joint is used for connecting the conveying pipeline of carrying the printing silk, quick-operation joint is connected with heat dissipation piece 1 through the screw thread, be provided with in heat dissipation piece 1 by heat dissipation piece 1 towards the fourth through-hole 11 of heating piece 2 one side accesss to dorsad 2 one side, quick-operation joint is in fourth through-hole 11 department, throat 3 passes fourth through-hole 11 intercommunication quick-operation joint and conveying pipeline, in order to fix throat 3 on heat dissipation piece 1, be provided with first fastening screw 12 in the side of heat dissipation piece 1, fix throat 3 in fourth through-hole 11 through first fastening screw 12.
The quick-operation joint in this embodiment is provided with 4, 4 conveying pipeline and 4 throats 3 one-to-one.
The heating block 2 is internally provided with at least two mixing cavities 5, each mixing cavity 5 at least corresponds to one nozzle 4, in this embodiment, the mixing cavities 5 are provided with two, each mixing cavity 5 corresponds to one nozzle 4, the heating block 2 is internally provided with first through holes 8 penetrating through two opposite side walls, the first through holes 8 are provided with two, the two first through holes 8 are mutually parallel and are perpendicular to each other, the four throats 3 are arranged in a group of two through holes 8, adjusting nuts 6 are arranged at two ends of the first through holes 8, the opening degree of the throats 3 to the mixing cavities 5 can be adjusted by rotating the adjusting nuts 6, and on the other hand, the adjusting nuts 6 plug the two ends of the first through holes 8, so that the first through holes 8 form a closed mixing cavity 5. The 4 throats 3 are respectively a first throat 301, a second throat 302, a third throat 3 and a fourth throat 3, the first throat 301 and the second throat 302 are communicated with one first through hole 8, the third throat 3 and the fourth throat 3 are communicated with the other first through hole 8, and materials entering the mixing cavity 5 through the throats 3 are melted and mixed in the mixing cavity 5 and then sprayed out by the nozzle 4. Through the position of control adjusting nut 6, steerable venturi 3 lets in the opening of mixing chamber 5, and then can adjust the ejection of compact volume of venturi 3 to a certain extent, and then reaches the effect of adjusting the color, in addition, when need not go out in a venturi 3, opens the discharge gate that closes this venturi 3 through adjusting nut 6, prevents that the printing silk that the part was melted in the venturi 3 from continuing to flow to mixing chamber 5.
The two nozzles 4 are arranged in the invention, and the nozzles 4 are arranged at the mixing cavity 5 between the two throats 3. The heating block 2 is also provided with a second through hole 9 and a third through hole 10, a heating rod for heating the heating block 2 is arranged in the second through hole 9, and a thermometer for measuring temperature is arranged in the third through hole 10. The second through holes 9 are arranged parallel to the mixing cavities 5, and the distance between the second through holes 9 and each mixing cavity 5 is the same.
As shown in fig. 3, a threaded hole is drilled between the two nozzles 4 leading to the heating hole, and a second fastening screw 13 is screwed in for securing an external heating rod device.
Working principle: when the actual 3D printing is performed, the 3D printing nozzle is required to be heated before printing, namely the heating block 2 is heated, and according to the printing requirement, the printing function is changed by changing the position of the adjusting nut 6 after the temperature reaches the working temperature. Taking one of the mixing cavities 5 as an example, two printing wires with different colors are inserted above the mixing cavity 5, when the adjusting nuts 6 at two ends of the mixing cavity 5 are in an open state, color mixing and gradual color changing printing can be performed, when one of the adjusting nuts 6 is in a closed state, single-color printing can not be performed, and when the two adjusting nuts 6 are in the closed state, no printing is performed at the moment on the nozzle 4. The same is true for the other mixing chamber 5. When the two nozzles 4 are used for alternately printing, the effects of color matching and double gradual color changing can be printed, and the ink can also be used for printing materials with different materials.
The above is only a preferred embodiment of the present invention, and the present invention is not limited to the contents of the embodiment. Various changes and modifications within the technical scope of the present invention will be apparent to those skilled in the art, and any changes and modifications are intended to be within the scope of the present invention.
Claims (11)
1. The utility model provides an optional list colour mixture is two to go out 3D and is printed shower nozzle device, includes heating block and radiating block, its characterized in that: the heating block is provided with nozzles, the heat dissipation block is connected with a conveying pipe for conveying printing wires, the heating block is connected with the heat dissipation block through a venturi, the conveying pipe and the venturi are respectively provided with a plurality of nozzles, the quantity of the conveying pipes is the same as that of the venturi, the venturi is communicated with the conveying pipe and the nozzles, at least two mixing cavities are arranged in the heating block, each mixing cavity is at least connected with two venturi, each mixing cavity is connected with at least one nozzle, and materials in the conveying pipe enter the mixing cavities in the heating block through the venturi and are sprayed out through the nozzles after being mixed;
the heating block is provided with a plurality of first through holes, the inner wall of each first through hole is provided with threads, each first through hole is perpendicular to the corresponding throat pipe, two adjusting nuts are respectively arranged at two ends of each first through hole, a cavity between each adjusting nut and the heating block forms a mixing cavity, and the adjusting nuts are rotated to adjust the opening of the corresponding throat pipe leading to the mixing cavity; the feeding amount in each throat is adjusted through the adjusting nut, so that the contents of various colors are adjusted, the final color of a finished product is adjusted, a product with gradually changed colors is obtained, and the preparation of the product with gradually changed colors and double color matching is realized through double spray heads and double mixing cavities.
2. The selectable single color mixing dual output 3D print head device of claim 1, wherein: the outer wall of the throat is provided with a concave-convex heat dissipation mechanism for reducing heat transferred to the heat dissipation block.
3. The selectable single color mixing dual output 3D print head device of claim 1, wherein: the heat dissipation block and the heating block are arranged at intervals.
4. The selectable single color mixing dual output 3D print head device of claim 1, wherein: the throat is connected with the conveying pipe from one side of the radiating block, which is close to the heating block, to one side of the radiating block, which is far away from the heating block, the throat is fixed on the radiating block through a fastening screw arranged on the side wall of the radiating block, and the fastening screw radially fastens the throat.
5. The selectable single color mixing dual output 3D print head device of claim 1, wherein: the conveying pipe is connected with the radiating block through a quick connector.
6. The selectable single color mixing dual output 3D print head device of claim 1, wherein: the number of the throats is 4, and every two throats are connected to the same mixing cavity.
7. The selectable single color mixing dual output 3D print head device of claim 1, wherein: and a plurality of radiating holes are formed in the radiating block, one end of each radiating hole is led to the side wall of the throat, and the other end of each radiating hole is led out of the radiating block.
8. The selectable single color mixing dual output 3D print head device of claim 1, wherein: the heating block is provided with a second through hole and a third through hole, a heating rod for heating the heating block is arranged in the second through hole, and a thermometer for measuring temperature is arranged in the third through hole.
9. The selectable single color mixing dual output 3D print head device of claim 8, wherein: the second through holes are arranged in parallel with the mixing cavities, and the distances between the second through holes and the mixing cavities are the same.
10. The selectable single color mixing dual output 3D print head device of claim 1, wherein: the radiating block is connected with a radiating fan.
11. The selectable single color mixing dual output 3D print head device of claim 1, wherein: and the radiating block is provided with a mounting hole.
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| CN201910034134.8A CN109703022B (en) | 2019-01-15 | 2019-01-15 | Selectable single color mixing double-outlet 3D printing spray head device |
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| CN201910034134.8A CN109703022B (en) | 2019-01-15 | 2019-01-15 | Selectable single color mixing double-outlet 3D printing spray head device |
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| CN109703022A CN109703022A (en) | 2019-05-03 |
| CN109703022B true CN109703022B (en) | 2023-09-22 |
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| CN111168994A (en) * | 2019-12-31 | 2020-05-19 | 浙江大学 | Multi-material 3D printing device with replaceable spray head |
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