CN104802407A - Air-insulated 3D (three-dimensional) printer nozzle - Google Patents
Air-insulated 3D (three-dimensional) printer nozzle Download PDFInfo
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- CN104802407A CN104802407A CN201510216136.0A CN201510216136A CN104802407A CN 104802407 A CN104802407 A CN 104802407A CN 201510216136 A CN201510216136 A CN 201510216136A CN 104802407 A CN104802407 A CN 104802407A
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Abstract
The invention provides an air-insulated 3D (three-dimensional) printer nozzle which comprises an upper connecting block, and a nozzle part and a stainless steel throat tube which are fixedly connected on the upper connecting block, wherein a gap is arranged between the stainless steel throat tube and the lower end of the upper connecting block; a teflon tube is mounted in the stainless steel throat tube in a sleeving manner; the upper end of the teflon tube is arranged in the upper connecting block; a heat dissipation piece is arranged on an opening of the teflon tube at the lower end of the upper connecting block; and a rear fan adaptive to the heat dissipation piece is arranged on the side surface of the upper connecting block. A non-contact state exists between the stainless steel throat tube and the upper connecting block, so that heat transferred to the stainless steel throat tube 6 by a heating block is upwards transferred to the upper connecting block 1 to the greatest extent, member damage caused by excess temperature of the upper connecting block is avoided, and a high-temperature resistant material is not required.
Description
Technical field
The present invention relates to a kind of 3D printer, particularly relate to a kind of 3D printer nozzle cooling device.
Background technology
The extrusion device ubiquity design of current 3D desktop printer is on the market loaded down with trivial details, and mounting or dismounting comparatively bother, and particularly extrusion device cooling effect is not obvious.
But extrusion device is when long-term work, because the liquid consumptive material that still there will be in heat block can overflow from trunnion, easily there is blocking, leak glue, tomography, hanging wire phenomenon, directly the speed of impact printing, the fineness on precision and surface.Trunnion can cause temperature too high and the connector be attached thereto is needed being exotic material owing to being connected with heat block simultaneously.
As disclosed a kind of 3D desktop printer in Chinese patent CN 203937193 U, shown in its accompanying drawing 1, the 3D printer extrusion device of prior art, comprises extruder; The bottom of described extruder is provided with nozzle; The front side of described extruder is provided with forefan; Fin is provided with between described forefan and the front side of extruder.Although dispelling the heat to the heater block of extruder inside of forefan and fin, prevent that temperature is too high to be caused extruder internals to damage serving certain cooling effect, cooling-down effect be not fine, also can there is above-mentioned phenomenon.
Summary of the invention
For above-mentioned technical problem to be solved, the invention provides a kind of structure simple, mounting or dismounting are convenient, and cooling is fast, prevents the nozzle cooling device that liquid consumptive material can overflow from trunnion.
Air heat insulation formula 3D printer nozzle, the nozzle comprising contiguous block and be fixedly connected on heat block and stainless steel trunnion, between the lower end of stainless steel trunnion and upper contiguous block, there is gap, teflon pipe is set with in stainless steel trunnion, the upper end of teflon pipe is placed in described upper contiguous block, the teflon pipe opening of the lower end of upper contiguous block is provided with radiating piece, is also provided with the aft-fan adapted with radiating piece in the side of upper contiguous block.
Further, the lower ending opening direction of above-mentioned radiating piece is consistent with the blowing direction of aft-fan, and in circular-arc-shaped design.
Further, above-mentioned nozzle establishes the crosswind fan of band customization fan housing, and the Way out of fan housing processed points to nozzle, and crosswind fan is placed on contiguous block and heat block.
Beneficial effect: be 1. contactless state between stainless steel trunnion and upper contiguous block, which reduces heat block to pass to heat on stainless steel trunnion 6 and upwards pass to contiguous block 1 to greatest extent, go up that contiguous block can not temperature be too high causes component damage like this, also need not be exotic material.
2. be set with teflon pipe 9 in stainless steel trunnion 6, because teflon pipe fusing point is higher than printed consumptive material, and thermal heat transfer capability is poor, plays the heat-blocking action between stainless steel trunnion 6 and consumptive material, and consumptive material in teflon pipe is not easily melted; Thus reduce the reflux of liquid consumption material, ensure operationally can to weave silk endlessly in nozzle 4 front end, ensure the continuity of work.
3. the lower end of going up contiguous block 1 arranges radiating piece 7, adopts the good aluminium alloy fine finishining of heat radiation to form, the temperature in favourable so further reduction on contiguous block 1.
4. the design of crosswind fan 8, the effect of this design is that the thermal conductivity ratio heat-barrier material of the air of flowing is large, after aft-fan 8 is dried forward, air is made to form good convection current, rapidly heat block 5 is passed to the heat that stainless steel trunnion 6 and width be mapped on radiating piece 7 to take away rapidly, play quick cooling effect, thus make nozzle 4 melt intraluminal fluid state consumptive material not easily to run in the teflon pipe 9 in stainless steel trunnion 6.
5. the lower ending opening direction of radiating piece is consistent with the blowing direction of aft-fan, and in circular-arc-shaped design, the flow of to be also this add strong wind.
In a word, above-mentioned all designs are all in order to the liquid consumptive material in heat block can overflow from trunnion, occur blocking, leak glue, tomography, hanging wire phenomenon, the efficiency of the speed of directly impact printing.
Accompanying drawing explanation
Fig. 1 is the structural representation of cooling device of the present invention;
Fig. 2 is the assembly structure schematic diagram of cooling device of the present invention;
Be masked as in figure: the upper contiguous block 1 of 1-; 2-crosswind fan 2; 3-customizes fan housing 3; 4-nozzle 4; 5-heat block 5; 6-stainless steel trunnion 6; 7-radiating piece 7; 8-aft-fan 8; 9-teflon pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrate with detailed description of the invention to the present invention do further carefully describe:
In the present invention, the noun of locality such as " upper and lower, left and right " of use typically refers to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to profile inside and outside relative to each parts itself.
See Fig. 1 and 2, the two ends of crosswind fan 2 of the present invention are fixedly connected on the rear end on contiguous block 1 and heat block 5 respectively, are arranged on the air outlet of the customization fan housing 3 on crosswind fan 2 towards nozzle 4; Crosswind is fanned after 2 winds go out, and is delivered to below nozzle on printout by the outlet of customization fan housing 3, makes extruded material drop on workbench cooling rapidly and formalize, can not produce tilting phenomenon.
Upper contiguous block 1 left end that aft-fan 8 is installed, radiating piece 7 is arranged on the lower end of contiguous block 1, the good aluminium alloy fine finishining of heat radiation is adopted to form, all there is larger ventilating opening from left to right, also there is ventilating opening simultaneously, the one side circular-arc-shaped design be connected with fan, reduces the resistance of fan blowing; Radiating piece 7 four jiaos has four screws, very convenient with mounting or dismounting at replacing nozzle.
As one distortion of the present invention, aft-fan 8 two screws are fixed on upper contiguous block 1, both can be loaded on left end and also can load right-hand member or front end, and be applicable to our company's different type of machines.
Teflon pipe 9 is set with for connecting heat block 5 and upper contiguous block 1 in stainless steel trunnion 6, wherein there is gap (because the base of radiating piece 7 does not draw in figure) between stainless steel trunnion 6 and upper contiguous block 1, doing so avoids rust steel trunnion 6 and heat energy is passed to upper contiguous block 1, thus the temperature reduced on upper contiguous block 1, teflon pipe 9 is arranged in contiguous block 1; Because teflon pipe fusing point is higher than the fusing point of printed consumptive material, and thermal heat transfer capability is poor, plays the heat-blocking action between stainless steel trunnion 6 and consumptive material, and consumptive material in teflon pipe is not easily melted; Thus avoid the reflux of liquid consumption material, ensure operationally can to weave silk endlessly in nozzle 4 front end, ensure the continuity of work, avoid fault-layer-phenomenon.
Specifically, aft-fan 8 starts blowing, wind is by the ventilating opening of radiating piece 7 with circular-arc-shaped design, make air form good convection current, rapidly heat block 5 is passed to heat on radiating piece 7 and stainless steel trunnion 6 and takes away rapidly, play quick cooling effect, thus make nozzle 4 melt intraluminal fluid state consumptive material not easily to run in the teflon pipe 9 of suit to stainless steel trunnion 6, thus when avoiding printing, produce tomography, rust steel trunnion 6 lousiness, hanging wire, and not easily pull out phenomenon when changing consumptive material, directly improve print speed.
Crosswind is fanned after 2 winds go out, and to be delivered to below nozzle 4 on printout by the outlet of customization fan housing 3, makes extruded material drop on workbench cooling rapidly and formalize, can not produce tilting phenomenon.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
Claims (3)
1. air heat insulation formula 3D printer nozzle, the nozzle (4) comprising contiguous block (1) and be fixedly connected on heat block (5) and stainless steel trunnion (6), it is characterized in that, between described stainless steel trunnion (6) and the lower end of upper contiguous block (1), there is gap, teflon pipe (9) is set with in described stainless steel trunnion (6), the upper end of described teflon pipe (9) is placed in described upper contiguous block (1), teflon pipe (9) opening of the lower end of described upper contiguous block (1) is provided with radiating piece (7), the aft-fan (8) adapted with described radiating piece (7) is also provided with in the side of upper contiguous block (1).
2. nozzle as claimed in claim 1, it is characterized in that, the lower ending opening direction of described radiating piece (7) is consistent with the blowing direction of aft-fan (8), and in circular-arc-shaped design.
3. nozzle as claimed in claim 1, it is characterized in that, described nozzle (4) establishes crosswind fan (2) of band customization fan housing (3), and the Way out of described fan housing processed (3) points to nozzle (4), and described crosswind fan (2) is placed on contiguous block (1) and heat block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510216136.0A CN104802407A (en) | 2015-05-02 | 2015-05-02 | Air-insulated 3D (three-dimensional) printer nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510216136.0A CN104802407A (en) | 2015-05-02 | 2015-05-02 | Air-insulated 3D (three-dimensional) printer nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104802407A true CN104802407A (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510216136.0A Pending CN104802407A (en) | 2015-05-02 | 2015-05-02 | Air-insulated 3D (three-dimensional) printer nozzle |
Country Status (1)
| Country | Link |
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| CN (1) | CN104802407A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199705A (en) * | 2017-07-11 | 2017-09-26 | 西南石油大学 | A kind of desk-top 3D printer of the high accuracy of disturbance rejection |
| CN108819246A (en) * | 2018-07-06 | 2018-11-16 | 芜湖启迪打印机科技有限公司 | A kind of 3D printer spray head |
| CN108995212A (en) * | 2018-07-06 | 2018-12-14 | 芜湖启迪打印机科技有限公司 | A kind of 3D printer modified spray head |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925286A (en) * | 2009-06-15 | 2010-12-22 | 富准精密工业(深圳)有限公司 | Radiating device |
| CN203936379U (en) * | 2014-07-11 | 2014-11-12 | 湖北嘉一科技有限公司 | A kind of spray nozzle device of 3D printer |
| CN203937193U (en) * | 2014-06-13 | 2014-11-12 | 苏州探索者机器人科技有限公司 | A kind of 3D printer extrusion device |
| CN203994731U (en) * | 2014-08-19 | 2014-12-10 | 深圳森工科技有限公司 | The printhead nozzle component of 3D printer |
| CN104215093A (en) * | 2014-08-22 | 2014-12-17 | 苏州矩道汽车科技有限公司 | Low wind resistance radiator |
| CN204725853U (en) * | 2015-05-02 | 2015-10-28 | 湖北嘉一科技有限公司 | Air heat insulation formula 3D printer nozzle |
-
2015
- 2015-05-02 CN CN201510216136.0A patent/CN104802407A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925286A (en) * | 2009-06-15 | 2010-12-22 | 富准精密工业(深圳)有限公司 | Radiating device |
| CN203937193U (en) * | 2014-06-13 | 2014-11-12 | 苏州探索者机器人科技有限公司 | A kind of 3D printer extrusion device |
| CN203936379U (en) * | 2014-07-11 | 2014-11-12 | 湖北嘉一科技有限公司 | A kind of spray nozzle device of 3D printer |
| CN203994731U (en) * | 2014-08-19 | 2014-12-10 | 深圳森工科技有限公司 | The printhead nozzle component of 3D printer |
| CN104215093A (en) * | 2014-08-22 | 2014-12-17 | 苏州矩道汽车科技有限公司 | Low wind resistance radiator |
| CN204725853U (en) * | 2015-05-02 | 2015-10-28 | 湖北嘉一科技有限公司 | Air heat insulation formula 3D printer nozzle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199705A (en) * | 2017-07-11 | 2017-09-26 | 西南石油大学 | A kind of desk-top 3D printer of the high accuracy of disturbance rejection |
| CN108819246A (en) * | 2018-07-06 | 2018-11-16 | 芜湖启迪打印机科技有限公司 | A kind of 3D printer spray head |
| CN108995212A (en) * | 2018-07-06 | 2018-12-14 | 芜湖启迪打印机科技有限公司 | A kind of 3D printer modified spray head |
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Application publication date: 20150729 |