CN204160771U - A kind of nozzle component and use the 3D printer of this nozzle component - Google Patents
A kind of nozzle component and use the 3D printer of this nozzle component Download PDFInfo
- Publication number
- CN204160771U CN204160771U CN201420347673.XU CN201420347673U CN204160771U CN 204160771 U CN204160771 U CN 204160771U CN 201420347673 U CN201420347673 U CN 201420347673U CN 204160771 U CN204160771 U CN 204160771U
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- Prior art keywords
- heat
- conducting piece
- nozzle component
- guiding tube
- fuse
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Abstract
The purpose of this utility model is to provide one can heater-combining and radiator, thus lighter and safe nozzle component.The utility model discloses a kind of nozzle component, for fusion sediment formula 3D printer, described nozzle component comprises, guiding tube, and it comprises the first end with fuse entrance and the second end being provided with nozzle; First heat-conducting piece, the second heat-conducting piece, described first heat-conducting piece and the second heat-conducting piece are successively set on described guiding tube along the second end of described guiding tube to the direction of first end; Described nozzle component also comprises, thermoelectric device, its cold junction having hot junction and be oppositely arranged with described hot junction, and described hot junction contacts with described first heat-conducting piece, and described cold junction contacts with described second heat-conducting piece.
Description
Technical field
The utility model is involved in 3D and prints field, particularly relates to a kind of nozzle component of fusion sediment formula 3D printer.
The utility model also relates to a kind of 3D printer using nozzle component.
Background technology
3D printing technique is the one of rapid shaping technique, is based on mathematical model file, by the jointing material such as powdery metal or plastics, is carried out the technology of constructed object by the mode successively printed.Wherein 3D printing technique is divided into multiple, and wherein the most extensive use be exactly the mode of fusion sediment, it is also called fuse deposition, by thread heat-fusible materials is carried out heating and melting, by material being extruded with the nozzle component of microfilament nozzle, nozzle component can move in a certain direction simultaneously, and the silk material of melting is extruded afterwards and front layer of material is bonded together, and bonds whereby until workpiece is completely shaping from level to level.
Can effectively be bonded together with front layer of material to make fuse, nozzle on nozzle component must can reach uniform temperature, thus silk material is melted, prior art is by installing a resistance wire type heater) realize above function, but, on the one hand because heater contacts with nozzle, nozzle belongs to again a part for guiding tube simultaneously, the overall heating temperature of guiding tube will inevitably be caused like this to raise, finally cause hot melt sex pilus material premature melting, namely the fuse entrance entering guiding tube just starts to melt, heat molten type silk material cannot be extruded from nozzle, on the other hand, when after heater long-time heating, guiding tube temperature is uncontrollable, cause nozzle temperature too high.In order to solve above problem, existing method adds radiator fan on nozzle component, and dispel the heat to its fuse entrance and the fuse entrance a part of guiding tube to nozzle, the rotating speed of fan can according to the temperature change of close control pipe.
First, there is following shortcoming: first in the mode that above-mentioned heater is separated with radiator, nozzle component needs to move on the position of needs rapidly as main printing device, and at present, the mode that heater is separated with radiator, make its structure too complicated, and light not; The second, when radiator breaks down, when heater still normally works, nozzle component constant temperature can be made to raise, burn out related elements, there is danger.
Secondly, above by the mode of resistance wire type heater, have several shortcoming: the first, heat loss is large, and efficiency is low.As everyone knows, resistance wire type heater is fired by resistance wire to form, and its thermal efficiency lower (usually at about 20%-30%) energy waste is serious; The second, because resistance wire is easily blown because of high-temperature oxydation, the life-span is shorter, causes nozzle component to need regular maintenance or replacing, improves the cost that 3D prints.
Moreover, above by the radiating mode adding fan, also there is several shortcoming: first, because fan realizes heat radiation by revolution, it will inevitably cause certain vibration, causes nozzle component to vibrate, and the model that 3D is printed produces error, particularly when 3D nozzle component uses for a long time, temperature is too high, causes fan in order to effective cooling, and rotating speed raises, its Oscillation Amplitude caused is also larger, and the error that the model that 3D prints produces is also larger; The second, consider that fan realizes indirect cooling by cross-ventilation, it accurately cannot control the temperature of whole guiding tube (comprising nozzle and fuse entrance).
Therefore, a kind of device that nozzle component can be made lighter and safe is needed badly.
Utility model content
In order to overcome above-mentioned technological deficiency, the purpose of this utility model is to provide one can heater-combining and radiator, thus lighter and safe nozzle component.
The utility model discloses a kind of nozzle component, for fusion sediment formula 3D printer, described nozzle component comprises, guiding tube, and it comprises the first end with fuse entrance and the second end being provided with nozzle; First heat-conducting piece, the second heat-conducting piece, described first heat-conducting piece and the second heat-conducting piece are successively set on described guiding tube along the second end of described guiding tube to the direction of first end; Described nozzle component also comprises, thermoelectric device, its cold junction having hot junction and be oppositely arranged with described hot junction, and described hot junction contacts with described first heat-conducting piece, and described cold junction contacts with described second heat-conducting piece.
Preferably, be located between described first heat-conducting piece and the second heat-conducting piece at thermoelectric device described in the utility model.
Preferably, described in the utility model, the first heat-conducting piece comprises first through hole of a diameter slightly larger than described guiding tube, and described first heat-conducting piece is sheathed on described guiding tube by described first through hole.
Preferably, described in the utility model, the second heat-conducting piece comprises second through hole of a diameter slightly larger than described guiding tube, and described second heat-conducting piece is sheathed on described guiding tube by described second through hole.
Preferably, described in the utility model, the second heat-conducting piece comprises main part and extension, and the one side of described main part contacts with described cold junction, and the direction contacted towards described first end extends described extension with the outer perimeter of described guiding tube
Preferably, the outer peripheral face of extension described in the utility model is provided with some fin.
Preferably, described in the utility model, main part is connected with described fin.
Preferably, described in the utility model, the first heat-conducting piece is located at the second end of described guiding tube.
Preferably, described in the utility model, nozzle is formed by a part for described first heat-conducting piece.
Preferably, described in the utility model, nozzle component also comprises a fuse transmission device, an installed part, and described installed part connects described fuse transmission device and described guiding tube.
Preferably, described in the utility model, fuse transmission device comprises the fuse support member with installing space, the installation fuse drive mated with described installing space and spring piston, and described fuse drive and described spring piston are arranged in the installing space of described fuse support member.
Preferably, described in the utility model, nozzle component also comprises a stepper motor, and the rotating shaft of described stepper motor connects described fuse drive.
The invention also discloses a kind of 3D printer using nozzle component.
After have employed technique scheme, compared with prior art, there is following beneficial effect:
1., by utilizing the hot junction of thermoelectric device to replace heater, cold junction replaces radiator, thus compared to existing heater disconnected from each other and radiator, whole nozzle component is lighter, simultaneously easier for installation.
2. owing to adopting thermoelectric device to substitute heater and radiator, when cold junction cannot normally work, hot junction also must work, and when avoiding heat sinking function inefficacy, the situation that heating function works on, improves security.
Accompanying drawing explanation
Fig. 1 is the explosive view of the utility model nozzle component one embodiment;
Fig. 2 is the profile of the utility model nozzle component one embodiment.
Reference numeral:
Nozzle component 100, guiding tube 110, nozzle 111, fuse entrance 112, thermoelectric device 120, hot junction 121, cold junction 122, first heat-conducting piece 130, second heat-conducting piece 140, main part 141, extension 142, stepper motor 151, fuse support member 152, installed part 153, fuse drive 154, spring piston 155, fuse 160, fuse transmission direction 161, fin 170.
Detailed description of the invention
Advantage of the present utility model is set forth further below with reference to specific embodiment and accompanying drawing.
It should be noted that in this article, the direction for the structure and action of explaining the various piece of disclosed embodiment represents, such as upper and lower, left and right, inside and outside, etc., be not absolute, but relative.When the various piece of disclosed embodiment is positioned at position shown in figure, these expressions are suitable.If the position of disclosed embodiment or reference system change, these represent and also will change according to the change of the position of disclosed embodiment or reference system.
As shown in Figure 1, be the schematic diagram of the utility model nozzle component one embodiment.In the present embodiment, nozzle component 100 comprises guiding tube 110, thermoelectric device 120, first heat-conducting piece 130, second heat-conducting piece 140, fuse transmission device.
Shown in composition graphs 2, wherein, guiding tube 110 there is first end and the second end, its first end is provided with fuse entrance 112, second end is provided with nozzle 111, simultaneously nozzle 111 and fuse entrance 112 through by the inner space of guiding tube 110, thus fuse 160 enters guiding tube 110 from fuse entrance 112 and arrives at nozzle 111 by the inner space of guiding tube 110, and flows out (as shown in fuse transmission direction figure 161) from nozzle 111 after heating.
First heat-conducting piece 130 is arranged on guiding tube 110, it comprise contact with guiding tube 110 outer peripheral face first contact wall, by this first contact wall, the heat on the first heat-conducting piece 130 can conduct on guiding tube 110.
Same, the second heat-conducting piece 140 is arranged on guiding tube 110, it comprise contact with guiding tube 110 outer peripheral face second contact wall, second contact wall by this, the heat on guiding tube 110 can conduct on the second heat-conducting piece 140.
Thermoelectric device 120, namely, the device that one end heats, the other end freezes is realized by semiconductor refrigerating technology (based on Peltier principle), it comprises hot junction 121 and cold junction 122, and the power supply of conducting hot junction 121 and cold junction 122, this hot junction 121 and cold junction 122 are oppositely arranged, and (this is prior art, no longer describe in detail), and this hot junction 121 contacts with the first heat-conducting piece 130, heat conduction to the first heat-conducting piece 130 that hot junction 121 is produced, this cold junction 122 contacts with the second heat-conducting piece 140, by the heat absorption on the second heat-conducting piece 140, realizes the object of heat radiation.Like this by heating function and heat sinking function are realized in combination with this thermoelectric device 120, effectively decrease the volume of nozzle component 100, make it lighter, simultaneously also convenient installation or replacement.In addition, owing to needing hot junction 121 and cold junction 122 to run when thermoelectric device 120 normally works simultaneously, once one of them cannot normally work, it must cause another to run, can ensure like this when problem occurs cold junction 122 (when nozzle component 100 heat sinking function lost efficacy), its hot junction 121 will inevitably quit work (namely nozzle component 100 heating function lost efficacy), thus avoid nozzle component 100 heat sinking function to lose efficacy and heater continues heating and causes that nozzle component 100 temperature is too high to be burnt out, and produce danger on fire.
It should be noted that, because thermoelectric device 120 itself is, by electric power, the heat of cold junction 122 is sent to hot junction 121, the refrigeration that such thermoelectric device 120 needs, the speed of heating, decide by by its sense of current and size, namely effectively can be controlled hot junction 121 and the cold junction 122 of thermoelectric device 120 by the control of electric current, thus control the temperature of guiding tube 110 more accurately further.
Simultaneously, due to most of heat in its hot junction 121 by cold junction 122 by electrical conductivity to hot junction 121, form hot junction 121 high temperature, the state of cold junction 122 low temperature, compared to by heater (e.g., hot water radiation wire) heating, then by radiator (as, fan) working method of dispelling the heat, the working method of thermoelectric device 120 is obviously higher for the utilization ratio of energy.
Fuse transmission device, be arranged on fuse entrance 112 place of guiding tube 110, that includes stepper motor 151, fuse support member 152, fuse drive 154, spring piston 155, installed part 153, wherein there is in fuse support member 152 installing space and the passage for fuse transmission, what fuse drive 154 and spring piston 155 mated is arranged in this installing space, stepper motor 151 is connected with fuse drive 154 simultaneously, drive it to rotate, and fuse 160 is between the outer peripheral face and this spring piston 155 of this fuse drive 154, and be forced on the outer peripheral face of this fuse drive 154 by this spring piston 155, make when this fuse drive 154 rotates, fuse 160 is driven because of the frictional force on fuse drive 154 outer peripheral face, thus enter the fuse entrance 112 of guiding tube 110.Installed part 153 is for connecting guiding tube 110 and above-mentioned fuse support member 152.
The specific works process of said structure is: stepper motor 151 drives fuse drive 154 to rotate, the fuse 160 being clamped to fuse drive 154 outer surface by spring piston 155 is whereby driven, and fuse 160 drives to nozzle 111 by guiding tube 110, after thermoelectric device 120 is energized, its electron transfer by inside by the delivered heat at cold junction 122 place to hot junction 121, the heat in hot junction 121 relends and conducts to nozzle 111 by the first heat-conducting piece 130, thermo-fuse 160 is added by nozzle 111, it is made to melt and by the extruding of follow-up fuse 160, flow out from nozzle 111, simultaneously, because the temperature of cold junction 122 is lower, according to heat balance principle, heat on second heat-conducting piece 140 will inevitably be conducted to cold junction 122 in a large number, and it is same, heat on guiding tube 110 also can a part be absorbed by the second heat-conducting piece 140, the heat of whole like this guiding tube 110 will produce high-temperature region and low-temperature space, low-temperature space ensures that fuse 160 can not be premature melting, and high-temperature region realizes fuse thawing, and whole guiding tube 110 can keep this duty for a long time.
Preferably, this first heat-conducting piece 130 is located at the second end of guiding tube 110, because the object of the first heat-conducting piece 130 is by heat conduction to the nozzle 111 being in the second end, so the distance between the first heat-conducting piece 130 and nozzle 111 is nearer, its heat transfer efficiency is higher.Further, said nozzle 111 is formed by a part for described first heat-conducting piece 130, and like this because the first heat-conducting piece 130 is directly by conducted inside heat, its conduction efficiency is the highest.
Preferably, this thermoelectric device 120 is located between the first heat-conducting piece 130 and the second heat-conducting piece 140, such first heat-conducting piece 130 just with the end contact in hot junction 121, and the second heat-conducting piece 140 just with the end contact of cold junction 122, consider that thermoelectric device 120 (usually in tabular) is by realizing the effect heating and freeze to hot junction 121 by the delivered heat of cold junction 122, the end face in its hot junction 121 has the highest temperature, and the end face of cold junction 122 has minimum temperature, this position can realize heating the most efficiently and refrigeration for thermoelectric device 120.It is to be noted, the position of thermoelectric device 120 is not limited between the first heat-conducting piece 130 and the second heat-conducting piece 140, it can also be various, and every hot junction 121 that can make contacts with the first heat-conducting piece 130, and the optional position that cold junction 122 contacts with the second heat-conducting piece 140 is all feasible.
Preferably, first heat-conducting piece 130 comprises first through hole of a diameter slightly larger than guiding tube 110, first heat-conducting piece 130 comes sheathed with on this guiding tube 110 by this first through hole, now, above-mentioned first contact wall is the inner peripheral surface of this first through hole, its outer peripheral face corresponding with guiding tube 110 contacts, thus the heat on the first heat-conducting piece 130 can conduct on guiding tube 110 comparatively uniformly.
Preferably, second heat-conducting piece 140 comprises second through hole of a diameter slightly larger than guiding tube 110, second heat-conducting piece 140 comes sheathed with on this guiding tube 110 by this second through hole, now, above-mentioned second contact wall is the inner peripheral surface of this second through hole, its outer peripheral face corresponding with guiding tube 110 contacts, thus the heat on guiding tube 110 also can conduct on the second heat-conducting piece 140 comparatively uniformly.
Preferably, second heat-conducting piece 140 comprises main part 141 and extension 142, as shown in Figure 2, the one side of this main part 141 contacts with cold junction 122, extension 142 contacts with the outer perimeter of guiding tube 110 and direction towards guiding tube 110 first end extends, most of heat whereby on guiding tube 110 can conduct to main part 141 by extension 142, and main part 141 conducts to cold junction 122 again.Further, extension 142 is hollow circuit cylinder, and the diameter of its inner hollow space is slightly larger than guiding tube 110 diameter, thus inner circumferential surface can contact with the outer peripheral face of guiding tube 110, guiding tube 110 is maximum with the contact area of extension 142 whereby, and the efficiency conducting to extension 142 is also the highest.Further, the outer peripheral face of extension 142 can also be arranged some fin 170, a part of heat of extension 142 is distributed in air by fin 170.Further, fin 170 is connected with the second heat-conducting piece 140 main part 141, thus the heat on extension 142 conducts to the second heat-conducting piece 140 main part 141 effectively, and can be dissipated in air by a part of heat, the radiating efficiency of whole like this nozzle component 100 is just higher simultaneously.
Should be noted that, embodiment of the present utility model has preferably implementation, and not any type of restriction is done to the utility model, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement change or be modified to equivalent effective embodiment, in every case the content of technical solutions of the utility model is not departed from, the any amendment done above embodiment according to technical spirit of the present utility model or equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (13)
1. a nozzle component, for fusion sediment formula 3D printer, described nozzle component comprises,
Guiding tube, it comprises the first end with fuse entrance and the second end being provided with nozzle;
First heat-conducting piece, the second heat-conducting piece, described first heat-conducting piece and the second heat-conducting piece are successively set on described guiding tube along the second end of described guiding tube to the direction of first end;
It is characterized in that, described nozzle component also comprises,
Thermoelectric device, its cold junction having hot junction and be oppositely arranged with described hot junction, described hot junction contacts with described first heat-conducting piece, and described cold junction contacts with described second heat-conducting piece.
2. nozzle component as claimed in claim 1, it is characterized in that, described thermoelectric device is located between described first heat-conducting piece and the second heat-conducting piece.
3. nozzle component as claimed in claim 1, it is characterized in that, described first heat-conducting piece comprises first through hole of a diameter slightly larger than described guiding tube, and described first heat-conducting piece is sheathed on described guiding tube by described first through hole.
4. nozzle component as claimed in claim 1, it is characterized in that, described second heat-conducting piece comprises second through hole of a diameter slightly larger than described guiding tube, and described second heat-conducting piece is sheathed on described guiding tube by described second through hole.
5. nozzle component as claimed in claim 1, it is characterized in that, described second heat-conducting piece comprises main part and extension, and the one side of described main part contacts with described cold junction, and the direction contacted towards described first end extends described extension with the outer perimeter of described guiding tube.
6. nozzle component as claimed in claim 5, it is characterized in that, the outer peripheral face of described extension is provided with some fin.
7. nozzle component as claimed in claim 6, it is characterized in that, described main part is connected with described fin.
8. nozzle component as claimed in claim 1, it is characterized in that, described first heat-conducting piece is located at the second end of described guiding tube.
9. nozzle component as claimed in claim 8, it is characterized in that, described nozzle is formed by a part for described first heat-conducting piece.
10. nozzle component as claimed in claim 1, it is characterized in that, described nozzle component also comprises a fuse transmission device, an installed part, and described installed part connects described fuse transmission device and described guiding tube.
11. nozzle components as claimed in claim 10, it is characterized in that, described fuse transmission device comprises the fuse support member with installing space, the installation fuse drive mated with described installing space and spring piston, and described fuse drive and described spring piston are arranged in the installing space of described fuse support member.
12. nozzle components as claimed in claim 11, it is characterized in that, described nozzle component also comprises a stepper motor, and the rotating shaft of described stepper motor connects described fuse drive.
13. 1 kinds of 3D printers, is characterized in that, use nozzle component as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420347673.XU CN204160771U (en) | 2014-06-26 | 2014-06-26 | A kind of nozzle component and use the 3D printer of this nozzle component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420347673.XU CN204160771U (en) | 2014-06-26 | 2014-06-26 | A kind of nozzle component and use the 3D printer of this nozzle component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204160771U true CN204160771U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420347673.XU Expired - Fee Related CN204160771U (en) | 2014-06-26 | 2014-06-26 | A kind of nozzle component and use the 3D printer of this nozzle component |
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| Country | Link |
|---|---|
| CN (1) | CN204160771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737434A (en) * | 2016-03-22 | 2016-07-06 | 宁波高新区美斯特科技有限公司 | Nozzle refrigeration system |
-
2014
- 2014-06-26 CN CN201420347673.XU patent/CN204160771U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737434A (en) * | 2016-03-22 | 2016-07-06 | 宁波高新区美斯特科技有限公司 | Nozzle refrigeration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20170626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |