CN206856013U - The 3D printer shower nozzle of nozzle diameter real-time variable - Google Patents
The 3D printer shower nozzle of nozzle diameter real-time variable Download PDFInfo
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- CN206856013U CN206856013U CN201621370620.5U CN201621370620U CN206856013U CN 206856013 U CN206856013 U CN 206856013U CN 201621370620 U CN201621370620 U CN 201621370620U CN 206856013 U CN206856013 U CN 206856013U
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- Prior art keywords
- nozzle
- track slot
- heat block
- multiple nozzles
- diameter
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Abstract
Utility model discloses a kind of 3D printer shower nozzle of nozzle diameter real-time variable, include feeding pipes, it is arranged at the heat block of feeding pipes outer end, nozzle is set to dock position on the lower surface of heat block, nozzle docking is provided with the inner heat block discharging opening being connected with the charging inner tube of feeding pipes on position, also include multiple nozzles, walking track slot is opened up on the lower surface of described heat block, described multiple nozzles sliding is arranged in walking track slot, nozzle docking position is arranged on the bottom wall of walking track slot, bogie has been mutually fixedly set between multiple nozzles, motor is connected with bogie and is used to driving multiple nozzles to be slid in track slot of walking and so that multiple nozzles dock position in nozzle switches over, and each nozzle nozzle material-feeding mouth when sliding switches to nozzle docking position is docked and connected with heat block discharging opening.The utility model has the advantages that it can realize that nozzle diameter switches in real time in print procedure.
Description
Technical field
It the utility model is related to the 3D printer shower nozzle of a kind of 3D printer, specifically nozzle diameter real-time variable.
Background technology
3D printing technique is appeared in the 1980s, also referred to as " rapid shaping technique ".Its biggest advantage is that nothing
It need to be machined or mould, any object is generated in the graph data that directly can just go out from Computer Design, so as to greatly contract
The R＆D cycle of short sawn timber, improve productivity ratio and reduce production cost.Therefore art circles and industrial quarters are widely used in.3D
Printing technique, according to the difference of its forming method, stereolithography can be divided into（SLA）, laminated solid mass manufacture（LOM）, selectivity
It is laser sintered（SLS）, Fused Deposition Modeling（Fused Deposition Modeling, FDM）Deng.Wherein FDM rapid shapings system
System is that it does not use laser system with the most essential difference of other systems, therefore cost is minimum, is also presently the most extensive
A kind of 3D printing technique of application.FDM techniques are usually that the low melting point filamentary material of solid-state is heated into semi-molten state, such as
PLA or ABS etc..Then, extruded, according to every layer of predetermined track of object, successively manufactured, often manufactured under one layer of workbench
Drop a thickness or printing head rises a thickness, so finally construct whole entity repeatedly.
The shower nozzle of the existing 3D printer based on FDM techniques, its structure mainly include feeding pipes, are arranged at charging
The aluminium alloy heat block of trunnion outer end and the nozzle for being fixed on aluminium alloy heat block and being connected with feeding pipes conveying,
Wherein, the heating unit for heating is provided with aluminium alloy heat block.During printing, silk material delivers to aluminium alloy from by wire feeder
It is heated and melts in heat block, is then flowed out from nozzle.The diameter of nozzle determines the diameter of wire vent, and this just determines the layer of printing
The maximum gauge of piece can not possibly be more than nozzle diameter.It is well known that 3D printing technique is realized by the thought of layering, lead to
Often, synusia thickness is thicker, and model surface precision is poorer, but the time-write interval is shorter.Synusia thickness is thinner, model print surface precision
It is higher, it is longer to the time-write interval, meanwhile, 3D printer sprays cephalomotor speed and limited by rate of material dissolution and nozzle diameter
System.At present, the nozzle diameter of 3D printer is between 0.1 to 0.5 mm, to avoid the too small plug of nozzle diameter, most of printings
Machine uses the nozzle of 0.4 mm diameters.If it is desired to the model that printing is finer, it will usually select nozzle diameter less, but so
The risk of time-write interval and plug can be increased simultaneously.
In 3D printing process, usual some models need not use unified thickness, such as dumbbell shape completely, be
Process time and processing progress are taken into account, small size nozzle print can be used in the obvious place of profile variations.And change
It is unconspicuous, large scale nozzle print can be used.So can not only improve model quality but can reduce the time-write interval and into
This.But the nozzle that the replacing of the nozzle of traditional 3D printer needs to would be attached to alloy heat block bottom integrally screws down,
Before a model has not printed, another nozzle can not be changed, and changed nozzle and also needs to re-calibrate spray
Distance between mouth and print platform.Therefore very troublesome, efficiency is very low.It is therefore desirable to this is improved.
Pass through retrieval：
（1）China Patent Publication No. CN105109041A discloses a kind of 3D printers of interchangeable nozzle printing, the technology
Scheme changes the nozzle structure of the 3D printer of traditional FDM techniques completely, and needs extra setting guide rail to be driven,
This structure can not be applied to the 3D printer popularized very much in the market.
（2）China Patent Publication No. CN105965898A discloses a kind of 3D printer shower nozzle of rotatable switching, the skill
The rotation of the printer head of art scheme is needed, by external force, such as to switch over manually, and it is substantially changed with traditional craft
Printer nozzle is no too different, and mostly important, the technical scheme can not realize the work(that real-time nozzle switches in real time automatically
Energy.
Utility model content
The purpose of this utility model be in order to overcome shortcoming and defect existing for prior art, and a kind of nozzle is provided can be
Switch in real time in print procedure, it is straight so as to match the nozzle of printing needs so as to realize nozzle diameter real-time variable effect
The 3D printer shower nozzle of footpath real-time variable.
To achieve the above object, the technical solution of the utility model is to include feeding pipes, be arranged at outside feeding pipes
The heat block of end, sets on the lower surface of heat block nozzle to dock position, and nozzle docking is provided with inner and feeding pipes on position
The heat block discharging opening that is connected of charging inner tube, also include multiple nozzles, the nozzle that charging connection is provided with nozzle enters
Material mouth, nozzle bore and material spray discharging opening, and the material spray discharging opening diameter of multiple nozzles is not set not etc., under described heat block
Walking track slot is opened up on end face, the sliding of described multiple nozzles is arranged in walking track slot, and nozzle docking position is arranged at walking rail
On the bottom wall of groove, bogie has been mutually fixedly set between multiple nozzles, motor, institute are additionally provided with described heat block
The motor stated is connected with bogie and is used to drive multiple nozzles to slide in track slot of walking and causes multiple nozzles
Switched in nozzle docking position, and each nozzle nozzle material-feeding mouth when sliding switches to nozzle docking position discharges with heat block
Mouth is docked and connected.
It is that described walking track slot is annular track slot further to set, the motor output shaft and circle of described motor
The central axis coaxial of annular track slot, described bogie include multiple be respectively used to each nozzle and motor output shaft phase
The kinematic link of fixed linkage.
Further setting is that the position of corresponding nozzle docking position on described walking track slot madial wall is provided with for locking
The detent mechanism of nozzle, the detent mechanism include positioning ball, and the positioning ball rotation chamber in walking track slot madial wall,
And the spring eye that positioning ball rotates intracavitary end is connected to, adjustable spring is provided with spring eye, positioning ball is rotated positioned at positioning
Ball rotates intracavitary and its inner flexibly supported with adjustable spring connects, and turns on described walking track slot madial wall relative to positioning ball
It is detachably fixed at the outward opening of dynamic chamber and is covered with cover plate, the cover plate that diameter is less than positioning bulb diameter is provided with described cover plate
Centre bore, the exposed outer end for being raised in cover central hole in outer end of described positioning ball, each nozzle with the positioning
The positioning shrinkage pool with the outer end scarf positioning of positioning ball is provided with the corresponding side wall of ball.By this setting so that nozzle
Spacing fixation can be obtained when being switched to nozzle docking position, in this way, ensureing the stability that nozzle is fixed.
Further set is to be provided with whether position in place is felt for sensing nozzle on the outer end of described positioning ball
Inductive switch, and the location sensitive switch output with nozzle in place whether corresponding switching signal.Pass through this setting, switch letter
Number can combine actuator go control 3D printer wire feeder motion, nozzle also no switching in place when, stop wire feed moving
Make.
Further setting is that the groove depth of walking track slot is consistent, the highly equal setting in longitudinal direction of each nozzle.Pass through this
Set, after each shower nozzle switches, without re-starting no nozzle location calibration, improve processing efficiency.
It is that described nozzle is provided with 4 further to set, the diameter of its material spray discharging opening be respectively 0.1mm, 0.2mm,
0.3mm and 0.4mm.
The utility model has the advantages that the real-time variable switching of nozzle diameter in print procedure can be realized, in this way, some
The product not high to mechanical property requirements, can use small size nozzle when printing outline, be sprayed using large scale during filling
It mouth, can so ensure machining accuracy, can save process time again, and the maximum thickness of traditional 3D printer printing is sprayed
Outspoken footpath limitation, it is impossible to the time-write interval is greatly improved.
The utility model is described further with reference to specification drawings and specific embodiments.
Brief description of the drawings
Fig. 1 the utility model embodiment stereograms；
Fig. 2 the utility model embodiment upward views；
Fig. 3 is Fig. 2 A-A sectional views.
Embodiment
The utility model is specifically described below by embodiment, is served only for carrying out further the utility model
Explanation, it is impossible to be interpreted as the restriction to scope of protection of the utility model, the technician in the field can be according to above-mentioned practical new
The content of type makes some nonessential modifications and adaptations to the utility model.
Specific embodiment of the present utility model as Figure 1-3, include feeding pipes 1, be arranged at feeding pipes
The heat block 2 of outer end, the heat block are generally aluminium alloy heat block, are provided with heating resistance element in it, are that this area is normal
Accessory is advised, sets nozzle to dock position 21 on the lower surface of heat block 2, nozzle docking is provided with the inner and feeding pipes 1 on position 21
The heat block discharging opening 22 that is connected of charging inner tube 11, also include multiple nozzles 3, charging connection be provided with nozzle 3
Nozzle material-feeding mouth 31, nozzle bore 32 and material spray discharging opening 33, and the diameter of material spray discharging opening 33 of multiple nozzles 3 is not set not etc.,
Walking track slot 23 is opened up on the lower surface of described heat block 2, the sliding of described multiple nozzles 3 is arranged in walking track slot 23,
Nozzle docking position 21 is arranged on the bottom wall of walking track slot 23, and bogie 4 has been mutually fixedly set between multiple nozzles 3, described
Heat block 2 on be additionally provided with motor 5, described motor 5 is connected with bogie 4 and for driving multiple sprays
Mouth 3 is slid in track slot of walking and multiple nozzles 3 is switched in nozzle docking position 21, and each nozzle 3 is cut in sliding
Nozzle material-feeding mouth 31 is docked and connected with heat block discharging opening 22 when shifting to nozzle docking position 21.
In addition, as specifically, the walking track slot 23 described in the present embodiment is annular track slot, described motor 5
Motor output shaft and annular track slot central axis coaxial, described bogie 4 includes that multiple be respectively used to will be each
Nozzle mutually fixes the kinematic link 41 of linkage with motor output shaft, in addition, corresponding nozzle on the described madial wall of walking track slot 23
The position of docking position 21 is provided with the detent mechanism for locking nozzle, and the detent mechanism includes positioning ball 61, and is located at
The positioning ball walked in track slot madial wall rotates chamber 62, and is connected to the spring eye 63 that positioning ball rotates intracavitary end, spring eye
Adjustable spring 64 is provided with 63, the rotation of positioning ball 61 is rotated positioned at positioning ball in chamber 62 and its inner and the elasticity of adjustable spring 64
Support connects, and is detachably fixed and is covered with the outward opening on described walking track slot madial wall relative to positioning ball rotation chamber
Plate 65, is provided with the cover central hole 651 that diameter is less than positioning bulb diameter on described cover plate 65, described positioning ball 61 it is outer
The exposed outer end for being raised in cover central hole 651 in end, each nozzle 3 are set with the corresponding side wall of the positioning ball 61
There is the positioning shrinkage pool 34 with the outer end scarf positioning of positioning ball.
In addition, preferably, be provided with the outer end of the positioning ball 61 described in the present embodiment is for sensing nozzle
It is no in place location sensitive switch, and the location sensitive switch output with nozzle in place whether corresponding switching signal.The position
Put inductive switch and be typically chosen in capacitance touch inductive switch.
In addition, the groove depth of the present embodiment walking track slot 23 is consistent, and the highly equal setting in longitudinal direction of each nozzle 3, institute
The nozzle 3 stated is provided with 4, and the diameter of its material spray discharging opening is respectively 0.1mm, 0.2mm, 0.3mm and 0.4mm.
Claims (6)
1. a kind of 3D printer shower nozzle of nozzle diameter real-time variable, includes feeding pipes, is arranged at feeding pipes outer end
Heat block, set on the lower surface of heat block nozzle to dock position, inner entering with feeding pipes be provided with nozzle docking position
The heat block discharging opening that material inner tube is connected, it is characterised in that：Also include multiple nozzles, charging connection is provided with nozzle
Nozzle material-feeding mouth, nozzle bore and material spray discharging opening, and the material spray discharging opening diameter of multiple nozzles is not set not etc., described heating
Walking track slot is opened up on the lower surface of block, the sliding of described multiple nozzles is arranged in walking track slot, and nozzle docking position is arranged at
On the bottom wall for track slot of walking, bogie is mutually fixedly set between multiple nozzles, driving is additionally provided with described heat block
Motor, described motor are connected with bogie and are used to drive multiple nozzles to slide and cause more in track slot of walking
Individual nozzle switches in nozzle docking position, and each nozzle nozzle material-feeding mouth and heating when sliding switches to nozzle docking position
Block discharging opening is docked and connected.
A kind of 2. 3D printer shower nozzle of nozzle diameter real-time variable according to claim 1, it is characterised in that：Described
Walking track slot is annular track slot, the motor output shaft of described motor and the central axis coaxial of annular track slot, institute
The bogie stated includes multiple kinematic links for being respectively used to mutually fixing each nozzle into linkage with motor output shaft.
A kind of 3. 3D printer shower nozzle of nozzle diameter real-time variable according to claim 1 or 2, it is characterised in that：Institute
The position of corresponding nozzle docking position is provided with the detent mechanism for locking nozzle, the localization machine on the walking track slot madial wall stated
Structure includes positioning ball, and the positioning ball rotation chamber in walking track slot madial wall, and is connected to positioning ball and rotates chamber
Inner spring eye, is provided with adjustable spring in spring eye, and positioning ball rotates rotates intracavitary and its inner is with stretching positioned at positioning ball
The support of contracting spring connects, detachably solid at the outward opening on described walking track slot madial wall relative to positioning ball rotation chamber
Surely cover plate is covered with, the cover central hole that diameter is less than positioning bulb diameter is provided with described cover plate, described positioning ball
The exposed outer end for being raised in cover central hole in outer end, each nozzle are provided with the corresponding side wall of the positioning ball
With the positioning shrinkage pool for the outer end scarf positioning for positioning ball.
A kind of 4. 3D printer shower nozzle of nozzle diameter real-time variable according to claim 3, it is characterised in that：Described
Position and be provided with whether location sensitive in place switchs for sensing nozzle on the outer end of ball, and location sensitive switch output
With nozzle in place whether corresponding switching signal.
A kind of 5. 3D printer shower nozzle of nozzle diameter real-time variable according to claim 1 or 2, it is characterised in that：OK
Walk that the groove depth of track slot is consistent, the highly equal setting in longitudinal direction of each nozzle.
A kind of 6. 3D printer shower nozzle of nozzle diameter real-time variable according to claim 1 or 2, it is characterised in that：Institute
The nozzle stated is provided with 4, and the diameter of its material spray discharging opening is respectively 0.1mm, 0.2mm, 0.3mm and 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370620.5U CN206856013U (en) | 2016-12-14 | 2016-12-14 | The 3D printer shower nozzle of nozzle diameter real-time variable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370620.5U CN206856013U (en) | 2016-12-14 | 2016-12-14 | The 3D printer shower nozzle of nozzle diameter real-time variable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206856013U true CN206856013U (en) | 2018-01-09 |
Family
ID=60814147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621370620.5U Withdrawn - After Issue CN206856013U (en) | 2016-12-14 | 2016-12-14 | The 3D printer shower nozzle of nozzle diameter real-time variable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206856013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493940A (en) * | 2016-12-14 | 2017-03-15 | 浙江工贸职业技术学院 | The 3D printer shower nozzle of nozzle diameter real-time variable |
-
2016
- 2016-12-14 CN CN201621370620.5U patent/CN206856013U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493940A (en) * | 2016-12-14 | 2017-03-15 | 浙江工贸职业技术学院 | The 3D printer shower nozzle of nozzle diameter real-time variable |
| CN106493940B (en) * | 2016-12-14 | 2019-06-11 | 浙江工贸职业技术学院 | The 3D printer spray head of nozzle diameter real-time variable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180109 Effective date of abandoning: 20190611 |
|
| AV01 | Patent right actively abandoned |