CN206718467U - A kind of colour mixture prints miniature extrusion shower nozzle - Google Patents
A kind of colour mixture prints miniature extrusion shower nozzle Download PDFInfo
- Publication number
- CN206718467U CN206718467U CN201720381295.0U CN201720381295U CN206718467U CN 206718467 U CN206718467 U CN 206718467U CN 201720381295 U CN201720381295 U CN 201720381295U CN 206718467 U CN206718467 U CN 206718467U
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- China
- Prior art keywords
- barrel
- colour mixture
- screw rod
- bearing block
- shower nozzle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of colour mixture to print miniature extrusion shower nozzle, including barrel, screw rod, nozzle, heater, bearing block, feed arrangement, and motor, the screw rod is in barrel, nozzle is located at barrel front end, barrel tail end is fixedly linked with bearing block, bearing block tail end is fixedly linked with motor, the axle of barrel inner screw tail end is arranged in bearing block by bearing, the axle of screw rod is fixedly linked with driving motor output shaft, the feed arrangement includes at least two material silk passages, it is described more material silk passage it is symmetrical be located at barrel tail end, the heater is on barrel, for being heated to material in barrel.The present apparatus realizes the stirring action for feeding, plastifying and being extruded through a screw rod, and can sufficiently be mixed two or more thermoplastics and colour mixture, realizes mixing printing simple in construction, that energy consumption is low.
Description
Technical field
This patent is related to 3D printing technique field, is related to a kind of miniature extrusion shower nozzle of printing, and in particular to a kind of colour mixture is beaten
Print miniature extrusion shower nozzle.
Background technology
Fused glass pellet technology is one kind of rapid shaping technique.This technology is by filamentary material such as thermoplastic
The fuse of property plastics, metal or wax is extruded from heated nozzle, according to each layer of desired guiding trajectory of molding part, with certain
Speed carry out melt deposition manufacture.Often printing completes one layer, and workbench just declines a thickness or shower nozzle rises a layer
Thickness is overlapped new one layer of deposition, repeats the deposition modeling that this process finally realizes part.
The structure of fused glass pellet process most critical is exactly shower nozzle part, and the design rationality of its mechanical structure directly closes
It is that can be smoothed out to forming process, while also has a great impact to the surface quality of forming part.
Existing nozzle structure is broadly divided into two kinds, and one kind is plunger type, and one kind is screw.Wherein they are all used
First to feed the mode heated afterwards, thermoplastic by trunnion until spray during, heat block makes it melt and produce
Phase transformation is given birth to, entering a pressure in phase transition process can drastically decline, and cause shower nozzle spinneret not plan a successor, or because heating-up temperature is unstable
Fixed factor influences, and the heated phase transformation of thermoplastic is uneven, causes the easy plug wire of shower nozzle or the silk to gush out irregular not
Together, the surface roughness of printed product is influenceed.Existing colour mixture printing head is more using the formula structure that goes with each other all the time simultaneously, should
Kind structure can not only increase shower nozzle weight, influence printing effect and effect.Also some colour mixture printing heads enter singly to go out post using double
Plug structure, although this kind of structure can mitigate shower nozzle weight significantly, but be difficult to the effect for reaching colour mixture printing, because hot
Plasticity material silk can not be mixed sufficiently in extrusion.
Utility model content
The purpose of this patent is exactly to overcome above-mentioned technical defect, first preheats, is changed into thermoplastic material's silk and melts
Change state, while under the stirring action of screw rod, thermoplastic material's silk is carried out sufficiently mixing and colour mixture, in electromagnetic heating coil
It is changed into molten condition under continuous action, is finally extruded by nozzle.
To reach above-mentioned purpose, the technic relization scheme of this patent is as follows：
A kind of colour mixture prints miniature extrusion shower nozzle, it is characterised in that：Including barrel, screw rod, nozzle, heater, bearing
Seat, feed arrangement and motor, for the screw rod in barrel, nozzle is located at barrel front end, barrel tail end and bearing block
It is fixedly linked, bearing block tail end is fixedly linked with motor, and the axle of barrel inner screw tail end is arranged on bearing block by bearing
Interior, axle and the driving motor output shaft of screw rod are fixedly linked, and the feed arrangement includes at least two material silk passages, more material silks
Passage it is symmetrical be located at barrel tail end, the heater is on barrel, for being heated to material in barrel.
As an improvement, the nozzle is conical nozzle, the screw front end is provided with the taper to match with nozzle inner pyramidal shape
Head.
As an improvement, each material silk passage is provided with a preheating apparatus.
As an improvement, the heater and preheating apparatus are electromagnetic heater.
As an improvement, the bearing of the axle and bearing block for installing screw rod tail end has two, two bearings distinguish position
In the front and back end of bearing block.
As an improvement, removably it is connected by screw thread between the nozzle and barrel.
As an improvement, the heater is located at barrel middle and lower part position, it is easy to provide more preferable heating effect for barrel.
As an improvement, the material silk passage has 2-4, each material silk passage is used to, into a kind of color material, realize colour mixture
Printing.
Operation principle of the present utility model is：Feed mechanism is first sent to thermoplastic material's silk in the material silk passage of plunger type
In, due to being provided with preheating apparatus on the outside of material silk passage, therefore available for the pre- thermal softening of thermoplastic material's silk, so as to successfully
It is sent into barrel.Thermoplastic material's silk that two or more different colours are in soft state enters under the shear agitation effect of screw rod
The sufficient melting mixing of row and colour mixture.Under the turning effort of screw rod, thermoplastic material's silk continuous-stable of melting state it is defeated
It is sent to close to one end of nozzle, while is arranged on the heater outside barrel and expects that the melting of silk provides stabilization for barrel inner thermoplastic
Thermal source, then in the presence of screw rod leading portion conical head extrusion pressure, uniformly smoothly extruded by nozzle.
The utility model beneficial effect is：
The utility model employs the mode that screw is combined with plunger type, does not melt part using thermoplastic material's silk
Work as plunger, push away feed wire advance, and complete to expect the thawing of silk itself, when thermoplastic material's silk of melting state enters screw barrel
Afterwards, pressurizeed by screw rod, extruded by nozzle.Therefore, the utility model ensure thermoplastic material's silk can stablize charging with
While thawing, thermoplastic material's silk can be sent into barrel with relatively low feeding thrust, and realize to molten condition by screw rod
The supercharging extrusion of thermoplastic material's silk, the melt for going for various minitype nozzles are continuously extruded so that the working stability of shower nozzle
Reliably.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the top view of the utility model embodiment 1.
Fig. 3 is the top view of the utility model embodiment 2.
Fig. 4 is the top view of the utility model embodiment 3.
Reference, 1- motors, 2- electric motor end caps, 3- round nuts, 4- thermoplastic material's silks, 5- bearing blocks, 6a pre-add
Thermal, 6b- heaters, 7- material silk passages, 8- screw rods, 9- barrels, 10- nozzles, 11a, 11b- bearing
Embodiment
This patent is further described below in conjunction with the accompanying drawings：
Embodiment 1,
As depicted in figs. 1 and 2, a kind of colour mixture of extra quality silk passage prints miniature extrusion shower nozzle, including motor 1, electricity
Generator terminal lid 2, round nut 3, thermoplastic material's silk 4, bearing block 5, heater 6a, preheating apparatus 6b, material silk passage 7, screw rod 8,
Barrel 9, nozzle 10, bearing 11a, 11b.Wherein nozzle 10 is conical nozzle, is connected between nozzle 10 and barrel 9 using internal thread
Connect, it is electromagnetic heater that the outside of barrel 9, which is provided with heater 6b, the heater 6b, one use of interior installation of barrel 9
In the screw rod 8 of extruded material, the wherein tail end of screw rod 8 is an axle construction, the axle of the tail end of screw rod 8 by former and later two bearings 11a,
11b is arranged on bearing block 5, and the center section of screw rod 8 is the helicitic texture for extrusion plasticizing, for thermoplastic material's silk 4
Stirring, melt with mixing, the front end of screw rod 8 is provided with conical head, and the shape of conical head is engaged with conical nozzle, is easy to molten condition
Thermoplastic material's silk 4 under its squeezing action can uniformly smoothly by nozzle 10 extrude.
In the present embodiment, material silk passage 7 is externally provided with preheating apparatus 6a, and preheating apparatus 6a is also a magnetic heater,
Thermoplastic material's silk 4 is preheated device 6a heating and softenings in silk passage 7 is expected, passes through propulsion caused by screw thread rotation on screw rod 8
Power realizes that thermoplastic material's silk 4 is endlessly fed, and is made due to the preheating apparatus 6a heating outside the material silk passage 7 of plunger type
Thermoplastic material's silk 4 progressively softens melting.Thermoplastic material's silk 4 continues to promote, and plunger is played a part of in the part not melted,
Thermoplastic material's silk 4 of melting is pulled in barrel 9, and the heater 6b in the outside of barrel 9, which is provided, can keep plastics to be in molten condition
Required heat, motor 1 drive screw rod 8 to rotate, and screw rod 8 plays a part of melt conveying and supercharging and mixed,
Finally the molten thermoplastic material silk of feeding barrel 9 is extruded from nozzle 10.When designing screw rod, the length of its thread segment can basis
The performance of thermoplastic material's silk 4 and change its length, to ensure the thermal history of melt in tolerance band.The device can pass through control
The volume flow of melt, realize fusion sediment rapid shaping technique.
Nozzle 10 is connected by screw thread with the body front end of barrel 9 in the present embodiment, and nozzle 10 is replaceable dismounting, can root
The diameter for extruding melting charge is adjusted according to being actually needed, you can change the nozzle of different size as needed.
The material silk passage 7 of plunger type is manufactured into integral structure with barrel 9, is also designed to split-type structural, so may be used
To facilitate processing.
In the present embodiment, two groups of bearing 11a, 11b connections are employed at bearing block 5, can effectively avoid screw rod 8 from rotating
The circular runout problem being likely to occur in journey, while electric motor end cap 2 is fixed on bearing block 5 by round nut 3, can solve
The axial float problem of screw rod 8.
Embodiment 2
As the other structures of embodiment 1, difference is embodiment 2, and the material silk passage 7 of embodiment 2 has three (such as Fig. 3 institutes
Show) to realize three kinds of thermoplastic mixing printings, because general color uses RGB trichromatisms, so more commonly
It is each to expect that silk passage 7 enters a kind of color thermoplastic, it is possible to achieve random color matches using three material silk passages 7.
Embodiment 3
As the other structures of embodiment 1, difference is embodiment 3, and the material silk passage 7 of embodiment 3 has four (such as Fig. 4 institutes
Show) to realize four kinds of thermoplastic mixing printings, suitable multiple performance and color thermoplastic mixing prints, this
The four material silk passages 7 implemented in 3 can also be using wherein one or two as standby material silk passage 7, to prevent other material silks from leading to
Used under the stopping state of road 7.
In order to solve the charging of different colours or species thermoplastic proportioning problem, it can use and be set around barrel tail end
Circle material silk passage 7 of different sizes is put, in use, using thermoplastic material's silk 4 of different-diameter, it is straight by thermoplastic material's silk 4
Footpath is selected to select charging rate and proportioning.
Thermoplastic material's silk in terms of existing technologies, can be sent into barrel with less feeding thrust, protected by this patent
While card material silk can be stably fed with plasticizing, the supercharging extrusion to melt can be realized by miniature screw rod and is stirred, energy
Continuously extruded suitable for the melt of various minitype nozzles so that shower nozzle it is stable and reliable in work.
Claims (7)
1. a kind of colour mixture prints miniature extrusion shower nozzle, it is characterised in that：Including barrel, screw rod, nozzle, heater, bearing block,
Feed arrangement and motor, the screw rod is in barrel, and nozzle is located at barrel front end, and barrel tail end is consolidated with bearing block
Fixed to be connected, bearing block tail end is fixedly linked with motor, and the axle of barrel inner screw tail end is arranged in bearing block by bearing,
The axle of screw rod is fixedly linked with driving motor output shaft, and the feed arrangement includes at least two material silk passages, each material silk
Passage is provided with a preheating apparatus, more material silk passages it is symmetrical be located at barrel tail end, the heater is located at
On barrel, for being heated to material in barrel.
2. a kind of colour mixture prints miniature extrusion shower nozzle according to claim 1, it is characterised in that：The nozzle is tapered injection
Mouth, the screw front end are provided with the conical head to match with nozzle inner pyramidal shape.
3. a kind of colour mixture prints miniature extrusion shower nozzle according to claim 2, it is characterised in that：The heater and pre-add
Thermal is electromagnetic heater.
4. a kind of colour mixture prints miniature extrusion shower nozzle according to claim 2, it is characterised in that：It is described to be used to screw rod tail be installed
The axle at end and the bearing of bearing block have two, and two bearings are located at the front and back end of bearing block respectively.
5. a kind of colour mixture prints miniature extrusion shower nozzle according to claim 1, it is characterised in that：Between the nozzle and barrel
Removably it is connected by screw thread.
6. a kind of colour mixture prints miniature extrusion shower nozzle according to claim 1, it is characterised in that：The heater is located at material
Cylinder middle and lower part position.
7. a kind of colour mixture prints miniature extrusion shower nozzle according to claim 1 to 6 any one, it is characterised in that：The material
Silk passage has 2-4, and each material silk passage is used for into a kind of color material, realizes that colour mixture prints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381295.0U CN206718467U (en) | 2017-04-12 | 2017-04-12 | A kind of colour mixture prints miniature extrusion shower nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381295.0U CN206718467U (en) | 2017-04-12 | 2017-04-12 | A kind of colour mixture prints miniature extrusion shower nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206718467U true CN206718467U (en) | 2017-12-08 |
Family
ID=60504560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720381295.0U Expired - Fee Related CN206718467U (en) | 2017-04-12 | 2017-04-12 | A kind of colour mixture prints miniature extrusion shower nozzle |
Country Status (1)
| Country | Link |
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| CN (1) | CN206718467U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863774A (en) * | 2017-04-12 | 2017-06-20 | 武汉科技大学 | A kind of colour mixture prints miniature extrusion shower nozzle |
| CN109878084A (en) * | 2019-03-13 | 2019-06-14 | 西安交通大学 | A kind of 3D printing header structure of the preheating of composite graphite alkene and frictional heat generation deposition |
| CN110076566A (en) * | 2019-05-13 | 2019-08-02 | 华中科技大学 | A kind of the metal parts manufacture system and method for micro- casting forging milling In-situ reaction |
| CN110193939A (en) * | 2019-05-08 | 2019-09-03 | 西安交通大学 | A kind of fusion sediment print head and its application method that silk material is compound in real time |
| CN110861303A (en) * | 2019-11-27 | 2020-03-06 | 常州机电职业技术学院 | Active-passive mixed 3D printing nozzle |
| WO2020259140A1 (en) * | 2019-06-26 | 2020-12-30 | 北京矩阵空间科技有限公司 | Composite extrusion 3d printing nozzle and 3d printer |
| WO2021093603A1 (en) * | 2019-11-12 | 2021-05-20 | 深圳职业技术学院 | 3d printer coaxial spray head, and 3d printer with same |
| CN113580574A (en) * | 2021-08-11 | 2021-11-02 | 深圳市金石三维打印科技有限公司 | Color matching mechanism for 3D printer and color matching method thereof |
-
2017
- 2017-04-12 CN CN201720381295.0U patent/CN206718467U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863774A (en) * | 2017-04-12 | 2017-06-20 | 武汉科技大学 | A kind of colour mixture prints miniature extrusion shower nozzle |
| CN109878084A (en) * | 2019-03-13 | 2019-06-14 | 西安交通大学 | A kind of 3D printing header structure of the preheating of composite graphite alkene and frictional heat generation deposition |
| CN110193939A (en) * | 2019-05-08 | 2019-09-03 | 西安交通大学 | A kind of fusion sediment print head and its application method that silk material is compound in real time |
| CN110076566A (en) * | 2019-05-13 | 2019-08-02 | 华中科技大学 | A kind of the metal parts manufacture system and method for micro- casting forging milling In-situ reaction |
| WO2020259140A1 (en) * | 2019-06-26 | 2020-12-30 | 北京矩阵空间科技有限公司 | Composite extrusion 3d printing nozzle and 3d printer |
| WO2021093603A1 (en) * | 2019-11-12 | 2021-05-20 | 深圳职业技术学院 | 3d printer coaxial spray head, and 3d printer with same |
| CN110861303A (en) * | 2019-11-27 | 2020-03-06 | 常州机电职业技术学院 | Active-passive mixed 3D printing nozzle |
| CN113580574A (en) * | 2021-08-11 | 2021-11-02 | 深圳市金石三维打印科技有限公司 | Color matching mechanism for 3D printer and color matching method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20180412 |