CN201439072U - Motor-boosting micro-injection spray head - Google Patents
Motor-boosting micro-injection spray head Download PDFInfo
- Publication number
- CN201439072U CN201439072U CN200920076761XU CN200920076761U CN201439072U CN 201439072 U CN201439072 U CN 201439072U CN 200920076761X U CN200920076761X U CN 200920076761XU CN 200920076761 U CN200920076761 U CN 200920076761U CN 201439072 U CN201439072 U CN 201439072U
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- barrel
- microinjection
- shower nozzle
- raw material
- motor
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Abstract
The utility model discloses a motor-boosting micro-injection spray head, which can realize the accurate micro-dipping spraying for the formed material with the lower cost. The technical scheme is that the spray head comprises a driving controller, a linear stepping motor, a support and a micro-injector; the spray head further comprises a plunger piston, a feed barrel, a bottom cover, a spray nozzle, a first heating element and a second heating element, wherein the upper end of the plunger piston is connected with an output screw stem; the upper end of the feed barrel is fixed at the lower end of the support, the interior of the feed barrel is hollow for storing the formed material and for the sliding of the plunger piston along the inner wall of the feed barrel to push the formed material; the upper end of the bottom cover is connected with the lower end of the feed barrel; the bottom cover is provided with a hollow hole; the upper end of the spray nozzle is fixed at the lower flange of the bottom cover; the spray nozzle is provided with an inner hole; the lower end of the spray nozzle is provided with a spray hole; the hollow hole of the bottom cover, as well as the inner hole and the spray hole of the spray nozzle form a spray channel of the formed material; the first heating element is used for heating the feed barrel and the formed material in the feed barrel; and the second heating element is used for heating the spray nozzle.
Description
Technical field
The utility model relates to a kind of injection apparatus, relates in particular to a kind of with the motor-driven and the droplet shower nozzle of exerting pressure with plunger.
Background technology
Be shaped fast (Rapid Prototyping, RP) be called again free forming (Freeform Fabrication, FF).After adopting this technology, can be according to the three-dimensional CAD model of workpiece, directly make workpiece and need not traditional mould/cutter.The equipment of realizing fast shaping technology is called fast forming machine, at present, commercial fast forming machine mainly contains following 5 kinds: laser curing fast forming machine (SLA), laser sintering rapid forming technology machine (SLS), laser-die cut fast forming machine (LOM), melt extruded fast forming machine (FDM) and 3 D-printing fast forming machine (TDP).These fast forming machines all have (or a plurality of) forming head, make moulding material produce state variation by the laser beam/heat that sends in the forming head and extruding force/bonding agent, progressively form 3 D workpiece from level to level.
Therefore, forming head is the core component of fast forming machine, and the crystallized ability of fast forming machine depends primarily on forming head, especially the resolution ratio of forming head and applicable moulding material.
In recent years, more and more high to the requirement of fast shaping technology along with progress of science and technology, it mainly shows following two aspects: (1) further improves the precision of drip molding; (2) enlarge moulding material applicatory, make it the direct forming function element, that is: not only the shape of drip molding is identical with required workpiece with size, and its material also must be identical, and only in this way, drip molding is only the device of tangible function.For realizing above-mentioned requirements, many relevant research staff are just making great efforts to reform the structure of forming head, and wherein the most representative is as forming head with droplet ejection formula shower nozzle.
Droplet ejection (droplet jetting) is the technology that forces fluid to penetrate from the aperture (nozzle) of cavity volume with the form of droplet with external force, so-called " droplet " is meant that the size that penetrates drop can accurately be controlled to micron (μ m) level level, volume can be controlled in microlitre (μ L) to (fL) level level of ascending to heaven, and it is a kind of state-of-the-art technology that is developed out by inkjet printing.This technology has resolution ratio height, injection frequency height, can realize the high accuracy of liquid droplets volume, ultra tiny control, can adopt diversified injection fluid.
The key of droplet ejection technology is the droplet shower nozzle, and at present, typical droplet shower nozzle has electric deflection formula, valve-regulated, thermal bubble type and piezoelectric type etc.Wherein, with fastest developing speed is the piezoelectric type shower nozzle, it forces liquid wherein to spray from minute nozzle by the micrometric displacement of piezoelectric ceramics, this shower nozzle has become the main flow of current droplet shower nozzle, but also there is following subject matter in it: the costing an arm and a leg of the multiinjector piezoelectric type shower nozzle that (1) is industrial.(2) nozzle easily stops up, and often in case obstruction may cause whole shower nozzle to scrap.(3) environmental condition of Shi Yonging is limited, and the piezoelectric type shower nozzle that can bear high temperature is seldom arranged.(4) be used to drive injection device---the driving force that piezoelectric ceramic energy sends is limited, be difficult to extrude the material of high viscosity, high viscosity.
The utility model content
The purpose of this utility model is to provide a kind of motor boosting microinjection formula shower nozzle, can realize the accurate droplet ejection of shaping raw material by lower cost.
The technical solution of the utility model is: the utility model proposes a kind of motor boosting microinjection formula shower nozzle, comprising:
Driving governor, the driving signal of output linear stepping motor;
Linear stepping motor is used for driving micro-syringe by output screw;
Support, the upper end of support links to each other with this linear stepping motor;
Micro-syringe further comprises:
Plunger, the upper end of plunger is connected with this output screw of this linear stepping motor;
Barrel, the upper end of barrel is fixed on the lower end of this support, the barrel inner hollow, the storage shaping raw material slides to push shaping raw material at the promotion lower edge of output screw material tube inner wall for plunger;
Bottom, the upper end of bottom is connected with the lower end of barrel, and bottom is provided with emptying aperture;
Nozzle, the upper end of nozzle are fixed on the lower flange of this bottom, are provided with endoporus in the nozzle, and the lower end of nozzle is provided with spray orifice, and the emptying aperture of bottom, the endoporus of nozzle and spray orifice are formed the injection channel of shaping raw material;
First heating member is arranged on the outer surface of this barrel, is used to heat this barrel and shaping raw material wherein, makes shaping raw material keep molten state and changes the viscosity of shaping raw material so that optimize mobile performance;
Second heating member, this nozzle are to be fixed on the lower flange of this bottom by this second heating member, are used to heat this nozzle, make the shaping raw material in the nozzle keep fluidised form and change the viscosity of shaping raw material so that flow out by spray orifice.
Embodiment according to motor boosting microinjection formula shower nozzle of the present utility model is provided with venting plug and steam vent in this plunger of this micro-syringe, is used for getting rid of air and the moisture that the shaping raw material in this barrel contains.
According to an embodiment of motor boosting microinjection formula shower nozzle of the present utility model, the lower end of this barrel is detachable connection with being connected of this bottom.
According to an embodiment of motor boosting microinjection formula shower nozzle of the present utility model, the lower end outer surface of this barrel has screw thread, and this bottom has inner hole thread, and this bottom is threaded with this barrel, and under the operation of relative barrel rotation bottom, bottom breaks away from barrel.
According to an embodiment of motor boosting microinjection formula shower nozzle of the present utility model, the inner surface of this bottom is provided with viton seal ring.
According to an embodiment of motor boosting microinjection formula shower nozzle of the present utility model, the plunger of this micro-syringe, barrel, bottom and nozzle are all made with stainless steel.
According to an embodiment of motor boosting microinjection formula shower nozzle of the present utility model, this first heating member is to add hot jacket, is embedded with first electrical bar and first thermocouple in the axial direction respectively.
According to an embodiment of motor boosting microinjection formula shower nozzle of the present utility model, this adds hot jacket is to be made by the red copper material.
According to an embodiment of motor boosting microinjection formula shower nozzle of the present utility model, this second heating member is a heating cap, is embedded with second electrical bar and second thermocouple in vertical cross-section respectively.
According to an embodiment of motor boosting microinjection formula shower nozzle of the present utility model, this heating cap is to be made by brass.
The utility model contrast prior art has following beneficial effect: the technical scheme of motor boosting microinjection formula shower nozzle of the present utility model, the stepper motor that computerizeds control forces shaping raw material to be extruded from minute nozzle by the plunger in the barrel, and be deposited on the workbench, progressively be solidified to form workpiece.With respect to prior art, the raw material that motor boosting microinjection formula shower nozzle of the present utility model is used to be shaped is extensive, composition, brand, form and specification to shaping raw material are unrestricted, for example user's solution (aqueous solution or solvent solution), colloid, suspension, slurry or melt of being made of polymer, metal or pottery etc. of designing voluntarily or selecting.Can critically control the flow of blasting materials.Be provided with heating member in the shower nozzle, change the viscosity of shaping raw material as required by heating, so that obtain to spray the fluid of desired properties.Shower nozzle is all steel structure, and jet thrust is big, and stable performance can be sprayed high viscosity material and the material that contains strong solvent.Nozzle is difficult for stopping up, and can dismantle quickly and easily, cleans and install.Barrel is easy to clean, and can change shaping raw material wherein easily.Therefore microinjection formula shower nozzle of the present utility model can be widely used in free forming (being shaped fast), the particularly free forming of function electromechanical device, functional ceramic device, FGM device and tissue engineering bracket etc. of various workpiece.
Description of drawings
Fig. 1 is the structural representation of the embodiment of motor boosting microinjection formula shower nozzle of the present utility model.
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 shows the embodiment of motor boosting microinjection formula shower nozzle of the present utility model.See also Fig. 1, the motor boosting microinjection formula shower nozzle of present embodiment comprises: driving governor (not shown), linear stepping motor 2, micro-syringe 13, add hot jacket 5, heating cap 7 and support 3.Micro-syringe 13 further is made up of plunger 17, barrel 16, bottom 12 and nozzle 10.
Driving governor is used to export the driving signal of linear stepping motor 2, and linear stepping motor 2 drives micro-syringe 13 by output screw 1 under the control that drives signal.The upper end of plunger 17 is connected with the output screw 1 of linear stepping motor 2.Be provided with venting plug and steam vent in the plunger, be used for getting rid of contained air and the moisture of shaping raw material in the barrel.The upper end of barrel 16 is fixed on the lower end of support 3, barrel is a hollow structure inside, has stored shaping raw material, and plunger 17 slides at the promotion lower edge of output screw 1 barrel 16 inwalls, thereby push the shaping raw material in the barrel 16, so that from injection channel, be injected into workbench 9.For the ease of changing and removing remaining material in the barrel, the lower end of barrel 16 is a kind of detachable connection with being connected of bottom 12, promptly by a certain operation barrel is separated with bottom.In the present embodiment, the lower end outer surface of barrel 16 has screw thread, and bottom 12 has inner hole thread, and this detachable connection of bottom 12 and barrel 16 is exactly thread connecting mode.Under the operation of relative barrel 16 rotation bottoms 12, bottom 12 separates with barrel 16.Bottom 12 inner surfaces are provided with viton seal ring, can bear high temperature and have the ability of anti-solvent corrosion.Nozzle 10 can be a kind of structure of entry needle, and its upper end is fixed on the lower flange of bottom 12, and the lower end of nozzle is provided with spray orifice, and the diameter of spray orifice is selected micron order in the present embodiment for use.The endoporus of the emptying aperture that bottom 12 has (being arranged on the centre bore at center in the present embodiment), nozzle 10 and the spray orifice of nozzle lower end have been formed the injection channel that shaping raw material outwards sprays from barrel.Each assembly of micro-syringe 13, for example plunger 17, barrel 16, bottom 12 and nozzle 10 are all made with stainless steel, can bear high temperature and anti-solvent corrosion.
Add the outer surface that hot jacket 5 is arranged on barrel 16,, do not interspace between the two for better heating effect preferably is close to the outer surface of barrel 16.Add hot jacket 5 and on it is axial, be embedded with electrical bar 4 and thermocouple 14 respectively, be used for heating cylinder 16 and shaping raw material wherein, make shaping raw material keep molten state, otherwise can't realize being shaped, and change the viscosity of shaping raw material so that obtain the mobile performance of optimization.Adding hot jacket 5 is to be made by the red copper material.
The position of heating cap 7 is: nozzle 10 is to be fixed on the lower flange of bottom 12 by heating cap 7.Heating cap 7 is made by brass material, is embedded with electrical bar 11 and thermocouple 8 in its vertical cross-section respectively, is used for heated nozzle 10, makes the shaping raw material in the nozzle keep fluidised form and required viscosity, thereby can eject by spray orifice smoothly.
The operation principle of whole motor boosting microinjection formula shower nozzle is: linear stepping motor 2 under the effect of the driving signal of driving governor, make wherein output screw 1 vertically z do straight reciprocating motion.The plunger 17 that is connected output screw 1 lower end is under the promotion of output screw 1, inwall along barrel 16 slides, and push wherein fluidised form shaping raw material downwards, force shaping raw material through on the endoporus of the emptying aperture of bottom 12 and nozzle 10 and the workbench 9 that spray orifice is injected into the lower end.
Because driving governor can make the output screw 1 of linear stepping motor 2 and plunger 17 make small step motion, the pitch of the step pitch of linear stepping motor 2 and output screw 1 can be enough little, the injection diameter of nozzle 10 is a micron order, therefore can realize raw-material accurate droplet ejection.
The foregoing description provides to those of ordinary skills and realizes or use of the present utility model; those of ordinary skills can be under the situation that does not break away from invention thought of the present utility model; the foregoing description is made various modifications or variation; thereby protection domain of the present utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (10)
1. a motor boosting microinjection formula shower nozzle is characterized in that, comprising:
Driving governor, the driving signal of output linear stepping motor;
Linear stepping motor is used for driving micro-syringe by output screw;
Support, the upper end of support links to each other with this linear stepping motor;
Micro-syringe further comprises:
Plunger, the upper end of plunger is connected with this output screw of this linear stepping motor;
Barrel, the upper end of barrel is fixed on the lower end of this support, the barrel inner hollow, the storage shaping raw material slides to push shaping raw material at the promotion lower edge of output screw material tube inner wall for plunger;
Bottom, the upper end of bottom is connected with the lower end of barrel, and bottom is provided with emptying aperture;
Nozzle, the upper end of nozzle are fixed on the lower flange of this bottom, are provided with endoporus in the nozzle, and the lower end of nozzle is provided with spray orifice, and the emptying aperture of bottom, the endoporus of nozzle and spray orifice are formed the injection channel of shaping raw material;
First heating member is arranged on the outer surface of this barrel, is used to heat this barrel and shaping raw material wherein, makes shaping raw material keep molten state and changes the viscosity of shaping raw material so that optimize mobile performance;
Second heating member, this nozzle are to be fixed on the lower flange of this bottom by this second heating member, are used to heat this nozzle, make the shaping raw material in the nozzle keep fluidised form and change the viscosity of shaping raw material so that flow out by spray orifice.
2. motor boosting microinjection formula shower nozzle according to claim 1 is characterized in that, is provided with venting plug and steam vent in this plunger of this micro-syringe, is used for getting rid of air and the moisture that the shaping raw material in this barrel contains.
3. motor boosting microinjection formula shower nozzle according to claim 1 is characterized in that the lower end of this barrel is detachable connection with being connected of this bottom.
4. motor boosting microinjection formula shower nozzle according to claim 3 is characterized in that the lower end outer surface of this barrel has screw thread, this bottom has inner hole thread, this bottom is threaded with this barrel, and under the operation of relative barrel rotation bottom, bottom breaks away from barrel.
5. motor boosting microinjection formula shower nozzle according to claim 1 is characterized in that the inner surface of this bottom is provided with viton seal ring.
6. motor boosting microinjection formula shower nozzle according to claim 1 is characterized in that the plunger of this micro-syringe, barrel, bottom and nozzle are all made with stainless steel.
7. motor boosting microinjection formula shower nozzle according to claim 1 is characterized in that this first heating member is to add hot jacket, is embedded with first electrical bar and first thermocouple in the axial direction respectively.
8. motor boosting microinjection formula shower nozzle according to claim 7 is characterized in that this adds hot jacket is to be made by the red copper material.
9. motor boosting microinjection formula shower nozzle according to claim 1 is characterized in that this second heating member is a heating cap, is embedded with second electrical bar and second thermocouple in vertical cross-section respectively.
10. motor boosting microinjection formula shower nozzle according to claim 9 is characterized in that this heating cap is to be made by brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920076761XU CN201439072U (en) | 2009-06-22 | 2009-06-22 | Motor-boosting micro-injection spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920076761XU CN201439072U (en) | 2009-06-22 | 2009-06-22 | Motor-boosting micro-injection spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201439072U true CN201439072U (en) | 2010-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920076761XU Expired - Lifetime CN201439072U (en) | 2009-06-22 | 2009-06-22 | Motor-boosting micro-injection spray head |
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| Country | Link |
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| CN (1) | CN201439072U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107164A (en) * | 2010-12-18 | 2011-06-29 | 江苏锐毕利实业有限公司 | FFMJ (freeform fabrication with micro-droplet jetting) system |
| CN102259491A (en) * | 2011-06-10 | 2011-11-30 | 哈尔滨工业大学深圳研究生院 | Piezoelectric drive jet-type dotting device |
| CN102500490A (en) * | 2011-10-19 | 2012-06-20 | 玉环县正日塑机有限公司 | High-concentration silicon oil spray gun device |
| CN102514373A (en) * | 2011-11-18 | 2012-06-27 | 华南理工大学 | Ink droplet spraying method and device |
| CN103344691A (en) * | 2013-06-19 | 2013-10-09 | 北京邮电大学 | Water-drop test system for electrochemical migration experiment |
| CN103567094A (en) * | 2013-11-01 | 2014-02-12 | 苏州泰科尼光伏材料有限公司 | Intelligent spraying device for EVA (ethylene vinyl acetate) gum additive |
| CN104002480A (en) * | 2013-02-25 | 2014-08-27 | 江苏永年激光成形技术有限公司 | Multiple extrusion ejection device |
| CN104626556A (en) * | 2013-11-12 | 2015-05-20 | 华中科技大学 | Fused deposition three dimensional printing nozzle and printer |
| CN105195387A (en) * | 2015-08-19 | 2015-12-30 | 刘鲸 | Melt spraying device |
| CN108321263A (en) * | 2014-07-15 | 2018-07-24 | 首尔半导体股份有限公司 | Wavelength conversion section manufacturing device |
| CN108436089A (en) * | 2018-04-24 | 2018-08-24 | 汕头大学 | A kind of gradient-heated ejecting device for fusion sediment type metal 3D printing |
| CN109908436A (en) * | 2019-02-19 | 2019-06-21 | 四川大学华西医院 | A kind of anesthesia auxiliary rotary type injection assist device |
| CN111151416A (en) * | 2019-12-27 | 2020-05-15 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Pre-acceleration spraying and glue dispensing device |
| CN112324588A (en) * | 2020-09-30 | 2021-02-05 | 中国人民解放军战略支援部队航天工程大学 | Injector capable of stably suspending fuel liquid drops in high-pressure environment |
-
2009
- 2009-06-22 CN CN200920076761XU patent/CN201439072U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107164A (en) * | 2010-12-18 | 2011-06-29 | 江苏锐毕利实业有限公司 | FFMJ (freeform fabrication with micro-droplet jetting) system |
| CN102259491B (en) * | 2011-06-10 | 2013-04-24 | 哈尔滨工业大学深圳研究生院 | Piezoelectric drive jet-type dotting device |
| CN102259491A (en) * | 2011-06-10 | 2011-11-30 | 哈尔滨工业大学深圳研究生院 | Piezoelectric drive jet-type dotting device |
| CN102500490A (en) * | 2011-10-19 | 2012-06-20 | 玉环县正日塑机有限公司 | High-concentration silicon oil spray gun device |
| CN102514373B (en) * | 2011-11-18 | 2015-03-11 | 华南理工大学 | Ink droplet spraying method and device |
| CN102514373A (en) * | 2011-11-18 | 2012-06-27 | 华南理工大学 | Ink droplet spraying method and device |
| CN104002480A (en) * | 2013-02-25 | 2014-08-27 | 江苏永年激光成形技术有限公司 | Multiple extrusion ejection device |
| CN103344691A (en) * | 2013-06-19 | 2013-10-09 | 北京邮电大学 | Water-drop test system for electrochemical migration experiment |
| CN103567094A (en) * | 2013-11-01 | 2014-02-12 | 苏州泰科尼光伏材料有限公司 | Intelligent spraying device for EVA (ethylene vinyl acetate) gum additive |
| CN104626556A (en) * | 2013-11-12 | 2015-05-20 | 华中科技大学 | Fused deposition three dimensional printing nozzle and printer |
| CN108321263A (en) * | 2014-07-15 | 2018-07-24 | 首尔半导体股份有限公司 | Wavelength conversion section manufacturing device |
| CN105195387A (en) * | 2015-08-19 | 2015-12-30 | 刘鲸 | Melt spraying device |
| CN108436089A (en) * | 2018-04-24 | 2018-08-24 | 汕头大学 | A kind of gradient-heated ejecting device for fusion sediment type metal 3D printing |
| CN109908436A (en) * | 2019-02-19 | 2019-06-21 | 四川大学华西医院 | A kind of anesthesia auxiliary rotary type injection assist device |
| CN111151416A (en) * | 2019-12-27 | 2020-05-15 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Pre-acceleration spraying and glue dispensing device |
| CN112324588A (en) * | 2020-09-30 | 2021-02-05 | 中国人民解放军战略支援部队航天工程大学 | Injector capable of stably suspending fuel liquid drops in high-pressure environment |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100421 |
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| CX01 | Expiry of patent term |