CN106239922B - A kind of 3D printer spray head and the 3D printer using the spray head - Google Patents
A kind of 3D printer spray head and the 3D printer using the spray head Download PDFInfo
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- CN106239922B CN106239922B CN201610898338.2A CN201610898338A CN106239922B CN 106239922 B CN106239922 B CN 106239922B CN 201610898338 A CN201610898338 A CN 201610898338A CN 106239922 B CN106239922 B CN 106239922B
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- spray head
- printer
- calandria
- heating
- water cooled
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Manufacturing & Machinery (AREA)
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Abstract
The present invention provides a kind of 3D printer spray head and using the 3D printer of the spray head, it is related to printing technique field.3D printer spray head includes spray head upper-part, spray head lower component, stainless steel trunnion and nozzle, and spray head upper-part includes two feed pipes and at least two water cooled pipelines, and spacing of each water cooled pipeline at least between a feed pipe is in 6mm or less；Spray head lower component includes the first calandria and the second calandria, first calandria, the second calandria are respectively equipped with a heating pipe, spacing between two heating pipes is 12~16mm, first calandria and the second calandria are the calandria of aluminium material, two feed pipes pass through stainless steel trunnion respectively and are connected to two heating pipes, spacing between spray head upper-part and spray head lower component is 3.5~6.5mm, and two heating pipes are connected to nozzle.3D printer spray head provided by the invention can effectively avoid the blocking of spray head when feeding two kinds of printed materials.
Description
Technical field
The present invention relates to printing technique fields, in particular to a kind of 3D printer spray head and use the 3D of the spray head
Printer.
Background technique
3D printing is one kind based on digital model file, with adhesive materials such as plastics, passes through what is successively printed
Mode constructs the technology of object.By feat of simple process, without machining or mold, the production of product can be effectively shortened
Period runs advantages, the 3D printing technique such as low with maintenance cost and is just gradually being widely used in the works such as mold manufacture, industrial design
Primary mold manufacture, the direct manufacture of some products in industry field；Also it is just gradually realized applied to the consciousness of DIY, and
The duplication etc. of toy.
The realization of 3D printing technique depends on 3D printer, and the technology contents of existing 3D printer mainly have: input is soft
Part data command manipulates 3D printer, and Filamentous heat-fusible materials heating and melting solidifies after being squeezed out by printing head.
It sprays, is deposited on print job deck plate or preceding layer oneself cured material, temperature is low from spray head after hot melt material fusing
Start to solidify after solidification temperature, final finished is formed by the layer upon layer of material.
In the prior art, there are many 3D printers, divide by spray head number, just include single nozzle 3D printer and double spray heads
3D printer.Double spray head 3D printers are typically arranged to feed two kinds of materials, and when two kinds of materials of charging, just deposit
The problem of successive output prints.Existing double spray head 3D printers are in successive melted material, output printing, generally existing spray
The problem of head blocking, it is also easy to the problems such as material sagging and grazing printout occur.
Summary of the invention
The purpose of the present invention is to provide a kind of 3D printer spray head, this 3D printer spray head when feeding two kinds of materials,
The blocking of spray head can be effectively avoided, the sagging of material and the grazing to printout also can be effectively avoided.
Another object of the present invention is to provide a kind of 3D printers using above-mentioned spray head, and the 3D printer is without frequent
Spray head is dredged, easy to use, using effect is good.
The present invention solves its technical problem and adopts the following technical solutions to realize.
A kind of 3D printer spray head comprising spray head upper-part, spray head lower component, stainless steel trunnion and nozzle, on spray head
Component includes two feed pipes and at least two water cooled pipelines, between each water cooled pipeline is at least between a feed pipe
Away from 6mm or less；
Spray head lower component includes the first calandria and the second calandria, and the first calandria, the second calandria are respectively equipped with one
A heating pipe, the spacing between two heating pipes is 12~16mm, and the first calandria and the second calandria are aluminium material
Calandria,
Two feed pipes pass through stainless steel trunnion respectively and are connected to two heating pipes, spray head upper-part and spray head lower part
Spacing between part is 3.5~6.5mm, and two heating pipes are connected to nozzle.
Preferably, in a preferred embodiment of the present invention, above-mentioned first calandria, the second calandria include heating element,
Temp probe and data acquisition device, data acquisition device are connect with temp probe, for acquiring the data from temp probe,
And the data of acquisition are sent to the control processing unit of 3D printer, control processing unit is defeated according to data control heating element
Temperature level out.
Preferably, in a preferred embodiment of the present invention, above-mentioned heating element is heating rod.
Preferably, in a preferred embodiment of the present invention, spacing of each water cooled pipeline at least between a feed pipe
For 1~5mm.
Preferably, in a preferred embodiment of the present invention, above-mentioned water cooled pipeline is two, and two water cooled pipelines are respectively used to cold
But two feed pipes.
Preferably, in a preferred embodiment of the present invention, the caliber of above-mentioned water cooled pipeline is 6~8mm.
Preferably, in a preferred embodiment of the present invention, the internal diameter of above-mentioned feed pipe and heating pipe be 1.9~
2.1mm。
Preferably, in a preferred embodiment of the present invention, said nozzle is detachably connected with spray head lower component.
In addition, a kind of 3D printer comprising rack, stamp pad and above-mentioned 3D printer spray head, stamp pad and 3D are beaten
Print machine spray head is connect with rack.
Preferably, in a preferred embodiment of the present invention, above-mentioned 3D printer further includes the water drop in the cold pipeline of water supply
The condenser of temperature.
The 3D printer spray head of the embodiment of the present invention and using the beneficial effect of the 3D printer of the spray head it is: was printing
Cheng Zhong is gradually passed through in two heating pipes, spray head lower component after different raw material threads enters from two feed pipes respectively
The first calandria and the second calandria the raw material thread in two heating pipes is heated respectively.And since double spray head 3D are beaten
Print machine in print procedure, is melted in wire feed, and to keep the smoothness of printing, if desired the first raw material thread is beaten
Print, then wire feed and export fusing after the first raw material thread；If desired second of raw material thread is printed, then wire feed and is exported molten
Second of raw material thread after change is the output material by a nozzle selection.In practical print procedure, a kind of raw material
For silk when melting printing, another raw material thread need to keep unfused state.3D printer spray head provided by the invention has set up two separately
A calandria, is also provided with water cooled pipeline, between calandria, between calandria and spray head upper-part, the charging of spray head upper-part
Distance has all been carried out between pipeline and water cooled pipeline to limit, under the restriction of multiple conditions, the first calandria and the second heating
Body is just able to maintain 2~5 DEG C of temperature difference.When switching to the heating of the first calandria, the raw material thread in heating pipe is made to be in melting
State, when can be flowed out from nozzle, the temperature in the heating pipe of the second calandria is just than the heating pipe of the first calandria
Interior temperature is 2~5 DEG C low, and the second calandria is without heating at this time, in this way, being sent to the raw material thread of the second calandria with regard to rigid
It can terminate between feed pipe and heating pipe well, no longer convey down, and be able to maintain unfused state.In this way,
It is excessively high to avoid temperature due to outer heat affecting of the feed pipe where the raw material thread that wouldn't be used, leads to the raw material that wouldn't be used
Silk fusing in advance, causes the later period that can not continue to result in blockage into silk.
Moreover, being only provided with a nozzle in the present invention, when printing, nozzle is exporting always the material of demand, so just
The material outflow that wouldn't be used is avoided, sagging phenomenon occurs.And a nozzle is only set, it also can be avoided in moving process
In, the grazing caused by multiple nozzles to printout is set.
In addition, since the type of cooling that spray head upper-part of the invention is arranged is water cooling rather than air-cooled, in this way,
In the case where not changing film-cooled heat, raw material thread is cooled down, without increasing heat radiation area, without in heating tube
In the case that road, feed pipe size are modified slightly, just change heat dissipation area.In this way, just reducing the degree of difficulty of processing, fit
In industrial production.And water therein can also be recycled, and save environmental protection again, and cooling effect can guarantee 3D printing
The long time continuous working of spray head.
Detailed description of the invention
Illustrate the embodiment of the present invention or technical solution in the prior art in order to clearer, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the axonometric schematic diagram for the 3D printer spray head that the embodiment of the present invention one provides；
Fig. 2 is the schematic cross-sectional view for the 3D printer spray head that the embodiment of the present invention one provides.
Wherein, appended drawing reference is summarized as follows:
3D printer spray head 100；
Spray head upper-part 101；Spray head lower component 102；Stainless steel trunnion 103；Nozzle 104；Feed pipe 105；Water cooling tube
Road 106；First calandria 107；Second calandria 108；Heating pipe 109.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower" is base
In orientation or positional relationship shown in the drawings or the invention product using when the orientation or positional relationship usually put, only
It is that for the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " the
Two " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
Embodiment one
Figures 1 and 2 show that 3D printer spray head 100 provided in this embodiment, including under spray head upper-part 101, spray head
Component 102, stainless steel trunnion 103 and nozzle 104, spray head upper-part 101 include two feed pipes 105 and at least two water coolings
Pipeline 106, spacing of each water cooled pipeline 106 at least between a feed pipe 105 is in 6mm or less；Spray head lower component 102
Including the first calandria 107 and the second calandria 108, the first calandria 107, the second calandria 108 are respectively equipped with a heating
Pipeline 109, the spacing between two heating pipes 109 is 12~16mm, and the first calandria 107 and the second calandria 108 are
The calandria of aluminium material, two feed pipes 105 are connected to by stainless steel trunnion 103 with two heating pipes 109 respectively, spray head
Spacing between upper-part 101 and spray head lower component 102 is 3.5~6.5mm, and two heating pipes 109 connect with nozzle 104
It is logical.
The selection of each member distance, calandria and the heating conduction of stainless steel trunnion 103 of aluminium material etc. can just fit
Answer the demand of 3D printer spray head.
In the present embodiment, be previously mentioned " spacing of each water cooled pipeline 106 at least between a feed pipe 105 exists
6mm or less " is not to be calculated with the axial line of pipeline, but with the pipeline edge of water cooled pipeline 106 and feed pipe 105
Pipeline edge between minimum range come what is calculated, the distance of center circle for the circle independently opened such as two subtracts the distance of respective radius.
Similarly, the spacing between two heating pipes 109 is also so calculated.
Preferably, spacing of each water cooled pipeline 106 at least between a feed pipe 105 is 1~5mm.This implementation
In example, spacing of each water cooled pipeline 106 at least between a feed pipe 105 is 5mm.The spacing, which can not only meet, beats
Print requires, and obtains preferable printing effect, is also easy to fabricate, and reduces manufacture difficulty.
In the present embodiment, water cooled pipeline 106 is two, and two water cooled pipelines 106 are respectively used to cooling two feed pipes
105.One-to-one setting can make the raw material thread in feed pipe 105 preferably be cooled down.One water cooled pipeline 106 with
Spacing of the spacing between 5mm, with another feed pipe 105 between one feed pipe 105 is greater than 5mm, another water
Cold pipeline 106 is also provided so as to.In fact, two water cooled pipelines 106 are connections, a water cooled pipeline 106 is used to intake,
Another water cooled pipeline 106 is used to be discharged, and realizes the flowing of water, so, two water cooled pipelines 106 can also be regarded as a water
Cold passage.That is, it may also be said to which spray head upper-part 101 has only included a water-cooling channel, and this water-cooling channel includes
Inlet segment and water exit end, inlet segment and water exit end meet the restriction of above-mentioned distance.The limitation of water cooled pipeline number is only to be
Convenient for narration, as long as the water cooled pipeline of setting can cool down to feed pipe 105, and meet the restriction of spacing
Row.
Wherein, the caliber of water cooled pipeline 106 is 6~8mm, preferably 7mm.Feed pipe 105 and heating pipe 109 it is interior
Diameter is 1.9~2.1mm, preferably 2mm.
In the present embodiment, the spacing between two heating pipes 109 is 12mm, spray head upper-part 101 and spray head lower component
Spacing between 102 is 5mm.Spray head upper-part 101 is the spray head upper-part of aluminium material.
First calandria 107, the second calandria 108 include heating element, temp probe and data acquisition device (in figure
Do not show), data acquisition device is connect with temp probe, for acquiring the data from temp probe, and by the data of acquisition
It is sent to the control processing unit of 3D printer, control processing unit controls the temperature level of heating element output according to data.
In this way, control panel is arranged on 3D printer, it will be able to which the heating for manipulating raw material thread from control panel is melted.
Wherein, heating element is heating rod.First calandria 107 and the second calandria 108 are close to heating pipe 109
Position is equipped with a cavity, for installing heating rod.Certainly, the selection of heating rod is not intended as limiting, and can also select it
His heating element is such as heated using heater strip.
The present embodiment additionally provides a kind of 3D printer (not shown) comprising rack, stamp pad and above-mentioned 3D printing
Machine spray head 100, stamp pad and 3D printer spray head are connect with rack.Since 3D printer is the prior art, the present invention is main
It is that improvement is made that its spray head, which is not necessarily to do big structure change, so herein for the specific structure of 3D printer
It repeats no more.
3D printer spray head 100 and 3D printer provided in this embodiment are mainly beaten according to fused glass pellet method
Print, raw material thread PLA, ABS etc..
It prints principle: raw material thread is wrapped on feed roller, is driven by motor roller rotation, roller and raw material thread it
Between frictional force raw material thread is conveyed toward at the nozzle 104 of 3D printer spray head 100, have guiding between feed roller and spray head
Set, guide sleeve are made of low-friction material, so that raw material thread can smoothly, be accurately transported to the feed pipe of spray head by feed roller
In road 105.Under the action of calandria, raw material thread is heated melting, is then coated on stamp pad by nozzle 104, and
Interface profile is formed after cooling.Since fused glass pellet technique needs in prototype while making support, so in order to
It saves material cost and improves deposition efficiency, the 3D printer of double spray heads just enjoys great popularity.
In the present embodiment, feeding system (above-mentioned feed roller, guide sleeve etc.) has two groups, two groups of feeding systems respectively into
The raw material thread for entering two feed pipes 105 is conveyed.
Embodiment two
On the basis of the above embodiments, a kind of 3D printer spray head is present embodiments provided, the 3D printer spray head
Nozzle 104 is detachably connected with spray head lower component 102.
The mode being detachably connected can be replaced in the case where nozzle 104 damages, without replacing entire spray head.
In the present embodiment, nozzle 104 realizes the purpose being detachably connected with the mode that spray head lower component 102 is connected through a screw thread, certainly,
Such selection is not intended as limiting, the mode that other can also be selected to be detachably connected, and is such as clamped.
On the basis of the above embodiments, the present embodiment additionally provides a kind of 3D printer, which further includes using
In the condenser to cool down to the water in water cooled pipeline 106.
Two water cooled pipelines 106 are interconnected by pipe, and are connect with condenser, and according to heat exchange principle, utilization is cold
Condenser realizes water cooled pipeline 106 and exchanges heat, and guarantees that the water in water cooled pipeline 106 is recycled.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of 3D printer spray head, it is characterised in that: including spray head upper-part, spray head lower component, stainless steel trunnion and nozzle,
The spray head upper-part include two feed pipes and at least two water cooled pipelines, each water cooled pipeline at least with an institute
The spacing between feed pipe is stated in 6mm or less；
The spray head lower component includes the first calandria and the second calandria, first calandria, second calandria point
Not She You a heating pipe, the spacing between two heating pipes is 12~16mm, first calandria and described
Second calandria is the calandria of aluminium material；
Two feed pipes pass through the stainless steel trunnion respectively and are connected to two heating pipes, the spray head top
Spacing between part and the spray head lower component is 3.5~6.5mm, and two heating pipes are connected to the nozzle；
The water cooled pipeline is two, and two water cooled pipelines are respectively used to cooling two feed pipes；
First calandria, second calandria include heating element, temp probe and data acquisition device, the number
It is connect according to acquisition device with the temp probe, for acquiring the data from the temp probe, and by the number of acquisition
According to the control processing unit for being sent to 3D printer, the control processing unit is defeated according to the data control heating element
Temperature level out.
2. 3D printer spray head according to claim 1, it is characterised in that: the heating element is heating rod.
3. 3D printer spray head according to claim 1, it is characterised in that: each water cooled pipeline at least with an institute
Stating the spacing between feed pipe is 1~5mm.
4. 3D printer spray head according to claim 1, it is characterised in that: the caliber of the water cooled pipeline is 6~
8mm。
5. 3D printer spray head according to claim 1, it is characterised in that: the feed pipe and the heating pipe
Internal diameter is 1.9~2.1mm.
6. 3D printer spray head according to claim 1, it is characterised in that: the nozzle and the spray head lower component are removable
Unload connection.
7. a kind of 3D printer, it is characterised in that: including rack, stamp pad and the described in any item 3D printings of claim 1~6
Machine spray head, the stamp pad and the 3D printer spray head are connect with the rack.
8. 3D printer according to claim 7, it is characterised in that: the 3D printer further includes for the water cooling
The condenser of water cooling in pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610898338.2A CN106239922B (en) | 2016-10-14 | 2016-10-14 | A kind of 3D printer spray head and the 3D printer using the spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610898338.2A CN106239922B (en) | 2016-10-14 | 2016-10-14 | A kind of 3D printer spray head and the 3D printer using the spray head |
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| CN106239922A CN106239922A (en) | 2016-12-21 |
| CN106239922B true CN106239922B (en) | 2019-04-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| PL230139B1 (en) | 2016-04-11 | 2018-09-28 | Omni3D Spolka Z Ograniczona Odpowiedzialnoscia | Printer head for three-dimensional printing |
| CN107094966A (en) * | 2017-05-22 | 2017-08-29 | 陈劲松 | A kind of 3D printer shower nozzle and sugar draw Method of printing |
| US11235528B2 (en) * | 2017-09-02 | 2022-02-01 | R3 Printing, Inc. | Carriageless print head assembly for extrusion-based additive construction |
| CN108099178A (en) * | 2017-12-19 | 2018-06-01 | 北京太尔时代科技有限公司 | 3D printer nozzle, printer and Method of printing |
| CN109986779B (en) * | 2019-04-09 | 2021-12-28 | 陈俊廷 | Additive manufacturing extrusion device of circuit board, additive manufacturing device using same and using method of additive manufacturing extrusion device |
| CN113001973A (en) * | 2021-03-15 | 2021-06-22 | 合肥海闻自动化设备有限公司 | Printing nozzle for 3D printer and printer thereof |
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| CN106239922A (en) | 2016-12-21 |
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