CN104085194B - Fexible film mechanism based on hot bubble type ink jet printing head - Google Patents
Fexible film mechanism based on hot bubble type ink jet printing head Download PDFInfo
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- CN104085194B CN104085194B CN201410340653.4A CN201410340653A CN104085194B CN 104085194 B CN104085194 B CN 104085194B CN 201410340653 A CN201410340653 A CN 201410340653A CN 104085194 B CN104085194 B CN 104085194B
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Abstract
The invention discloses a kind of fexible film mechanism based on hot bubble type ink jet printing head, including: drive chamber, hydraulic fluid, deformation groove and fexible film, the top in described driving chamber is provided with opening, described fexible film includes the first flexible layer and the second flexible layer, described first flexible layer is attached on described second flexible layer by sedimentation, described deformation groove is arranged on described fexible film by etch, and described deformation groove is positioned at the surface of axis of symmetry of described opening, described fexible film is arranged at described opening part, in the space that described hydraulic fluid is arranged at described driving chamber and described fexible film surrounds.By the way, present invention fexible film based on hot bubble type ink jet printing head mechanism, being extruded by bubble when, bigger displacement can be produced, and can be in the case of not by external force, fexible film can be directly, quickly restore to the original state reproducible.
Description
Technical field
The present invention relates to ink jet printing device field, particularly relate to a kind of fexible film mechanism based on hot bubble type ink jet printing head.
Background technology
Inkjet printing is a kind of contactless, digital printing technology of low noise, it is widely used in home printer, office printer, business printer wide-format printer and 3D printer, and inkjet technology is broadly divided into demand (DOD) ink-jet technology and continuous way (CIJ) ink-jet technology.
In continuous inkjet printing technique, ink in ink jet-print head sprays continuously from spray orifice under the promotion of external pressure and forms a series of ink droplet, and these ink droplets can offset control method by electrostatic displacement or air-flow and be divided into " printed dot " or " non-print ink droplet ".In electrostatic displacement control method, " non-print ink droplet " first passes through charging electrode and with electrostatic charge, these ink droplets are again in offset electrodes is deflected by ink recovery, and " printed dot " of charging will not affected, by offset electrodes, the receiving surface that directly flight prints to needs.In air-flow skew control mode, " printed dot " and " non-print ink droplet " has different diameters and volume, when two kinds of ink droplets are by crossflow offset area, different Locus deviations is produced because varying in size, " non-print ink droplet " Locus deviation of small volume is bigger, being displaced in ink recovery, " printed dot " Locus deviation that volume is bigger is less, and can directly fly to the receiving surface needing to print.
Demand (DOD) ink-jet technology is divided into again hot-bubble ink-jetting printing technique (TIJ) and piezoelectric ink jet printing technique (PIJ).
In piezoelectric ink jet printing technique, piezoelectricity (piezoelectric) driver is had after each spray orifice, when certain spray orifice needs to launch ink droplet, one current impulse is sent on this spray orifice piezoelectric actuator, piezoelectric actuator is caused to deform upon, piezoelectric actuator deformation causes the pressure being connected in ink pressure chamber with spray orifice to sharply increase, so that ink is extruded from spray orifice and formed ink droplet and launch.
In thermal printing technique, a resistive heating actuators is had after each spray orifice, when certain spray orifice needs to launch ink droplet, one current impulse is sent on the resistive heating actuators of this spray orifice, the ink contacted with resistive heating actuators is caused to undergo phase transition and produce bubble, made ink extrude from spray orifice by the bubble generation pressure drastically expanded and form ink droplet and launch, hot-bubble ink-jetting printing technique is only used for producing the water-base ink of bubble, because the temperature of resistive heating actuators is up to 300 degrees Celsius when hot-bubble ink-jetting printing technique ink droplet is launched, it is likely to result in some responsive ink character to change in quality or the corrosion in the ink that is corrosive of the fasting resistance heater driver, cause reliability and quality problems.
In order to solve the problems referred to above, existing patented technology US8696092B proposes a kind of hot bubble type ink jet printing head (as shown in Figure 6) comprising fexible film mechanism, but the thin film in this invention is after the deformation that is under pressure, it is difficult to then return to original state, repeatability is poor, it addition, the displacement of existing thin film is less, so it is easily caused ink pressure experienced to diminish, it is not easy to form ink droplet and launch from spray orifice.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of fexible film mechanism based on hot bubble type ink jet printing head, there is the advantages such as displacement is big, switching to pressure is little, reproducible, simultaneously ink jet printing device application and universal on have market prospect widely.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is:
A kind of fexible film mechanism based on hot bubble type ink jet printing head is provided, comprising: pressure chamber, spray orifice, drive chamber, hydraulic fluid, deformation groove and fexible film, the top in described driving chamber is provided with opening, described fexible film includes the first flexible layer and the second flexible layer, described first flexible layer is attached on described second flexible layer, described deformation groove is arranged on described fexible film, and described deformation groove is positioned at the surface of axis of symmetry of described opening, described fexible film is arranged at described opening part, in the space that described hydraulic fluid is arranged at described driving chamber and described fexible film surrounds, the bottom of described pressure chamber is arranged on described fexible film, described spray orifice is arranged at the top of described pressure chamber.
In a preferred embodiment of the present invention, described first flexible layer and described second flexible layer all have employed compressive stress film.
In a preferred embodiment of the present invention, described deformation groove is arranged on described first flexible layer.
In a preferred embodiment of the present invention, described first flexible layer have employed compressive stress film, and described second flexible layer have employed tensile stress film.
In a preferred embodiment of the present invention, described deformation groove is arranged on described first flexible layer and described second flexible layer.
In a preferred embodiment of the present invention, also include that the 3rd flexible layer, described 3rd flexible layer are attached to the bottom of described second flexible layer by sedimentation.
In a preferred embodiment of the present invention, also include that the 3rd flexible layer, described 3rd flexible layer are attached on described first flexible layer by sedimentation.
In a preferred embodiment of the present invention, also include that filling block, described filling block are arranged at the bottom of described deformation groove.
In a preferred embodiment of the present invention, described deformation groove is arranged on described second flexible layer.
In a preferred embodiment of the present invention, also include that filling block, described filling block are arranged in the described deformation groove on described second flexible layer.
In a preferred embodiment of the present invention, described filling block have employed low Young's modulus material and is made.
In a preferred embodiment of the present invention, described 3rd flexible layer have employed the Young's modulus material less than 10GPa and is made.
In a preferred embodiment of the present invention, described hydraulic fluid have employed non-corrosive liquid.
The invention has the beneficial effects as follows: being extruded by bubble when, can produce bigger displacement, and can be in the case of not by external force, fexible film can be directly, quickly restore to the original state reproducible.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation in fexible film mechanism based on the hot bubble type ink jet printing head specific embodiment one of the present invention；
Fig. 2 is the structural representation in fexible film mechanism based on the hot bubble type ink jet printing head specific embodiment two of the present invention；
Fig. 3 is the structural representation in fexible film mechanism based on the hot bubble type ink jet printing head specific embodiment three of the present invention；
Fig. 4 is the structural representation in fexible film mechanism based on the hot bubble type ink jet printing head specific embodiment four of the present invention；
Fig. 5 is the structural representation in fexible film mechanism based on the hot bubble type ink jet printing head specific embodiment five of the present invention；
Fig. 6 is the structural representation of fexible film mechanism in prior art；
Fig. 7 is the structural representation in fexible film mechanism based on the hot bubble type ink jet printing head specific embodiment six of the present invention；
In accompanying drawing, the labelling of each parts is as follows: 1, the first flexible layer, the 2, second flexible layer, 3, drive chamber,
4, hydraulic fluid, 5, deformation groove, the 6, the 3rd flexible layer, 7, filling block, 8, pressure chamber, 9, spray orifice.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 1-Fig. 7, the embodiment of the present invention includes:
A kind of fexible film mechanism based on hot bubble type ink jet printing head, comprising: pressure chamber 8, spray orifice 9, driving chamber 3, hydraulic fluid 4, fexible film and deformation groove 5, the top in described driving chamber 3 is provided with opening, described deformation groove 5 is positioned at the surface of the axis of symmetry of described opening, described fexible film is arranged at described opening part, described hydraulic fluid 4 is arranged in described driving chamber 3, the bottom of described pressure chamber 8 is arranged on described fexible film, described spray orifice 9 is arranged at the top of described pressure chamber 8, and ink is arranged in described pressure chamber 8.
Bottom in described driving chamber 3, resistive heating actuators is installed, described spray orifice 9 is positioned at the top of described fexible film, described fexible film is arranged between spray orifice 9 and resistive heating actuators, and in the pressure chamber 8 formed between spray orifice and fexible film is marking ink, being in response to resistive heating actuators and producing the described hydraulic fluid 4 of bubble in chamber is driven between fexible film and resistive heating actuators, when producing bubble when driving the hydraulic fluid 4 in chamber 3 to be heated, the pressure in chamber 3 is driven to rise, the pressure in fexible film deformation and pressure chamber 3 is caused to rise, make ink extrude from spray orifice 9 and form ink droplet and launch.
Described hydraulic fluid uses non-corrosiveness and the stable liquid of low gasification temperature, such as pure water, ethanol etc., thus improves efficiency and the reliability of ink jet-print head.
Specific embodiment one:
A kind of fexible film mechanism based on hot bubble type ink jet printing head, described fexible film includes the first flexible layer 1 and the second flexible layer 2, described first flexible layer 1 is attached on described second flexible layer 2 by sedimentation, described deformation groove 5 is arranged on described first flexible layer 1 by etch, described fexible film is arranged at described opening part, in the space that described hydraulic fluid 4 is arranged at described driving chamber 3 and described fexible film surrounds.
Described first flexible layer 1 and described second flexibility 2 layers all have employed compressive stress film, and its material can use the flexible material such as silicon dioxide, silicon nitride simultaneously, it is possible to use different flexible materials.
Forming described deformation groove when, a kind of method is: can first set described second flexible layer 2, then is deposited on described second flexible layer 2 by described first flexible layer 1, then directly corrode on described first flexible layer 1 by etch；Another kind of method is: can first set described second flexible layer 2, then directly corrode on described second flexible layer 2 and the groove the same with described deformation groove, the most described first flexible layer 1 is deposited on described second flexible layer 2, thus can present described deformation groove on described first flexible layer 1.
Specific embodiment two:
A kind of fexible film mechanism based on hot bubble type ink jet printing head, described fexible film includes the first flexible layer 1 and the second flexible layer 2, described first flexible layer 1 is attached on described second flexible layer 2 by sedimentation, described deformation groove 5 is arranged on described first flexible layer 1 and described second flexible layer 2 by etch, described fexible film is arranged at described opening part, in the space that described hydraulic fluid 4 is arranged at described driving chamber 3 and described fexible film surrounds.
Described first flexible 1 layer have employed compressive stress film, described second flexible 2 layers have employed tensile stress film, described deformation groove 5 is arranged on described first flexible layer 1 and described second flexible layer 2, and described filling block 7 is arranged at the bottom of described deformation groove 5, at the most described filling block 7 and described second flexible layer 2 in the same plane, described filling block 7 have employed the material such as low Young's moduluss such as rubber and is made.
Specific embodiment three:
A kind of fexible film mechanism based on hot bubble type ink jet printing head, described fexible film includes the first flexible layer 1 and the second flexible layer 2, described first flexible layer 1 is attached on described second flexible layer 2 by sedimentation, described deformation groove 5 is arranged on described first flexible layer 1 and described second flexible layer 2 by etch, in the space that described hydraulic fluid 4 is arranged at described driving chamber and described fexible film surrounds.
Described first flexible layer 1 have employed compressive stress film, described second flexible layer 2 have employed tensile stress film, described deformation groove 5 is arranged on described first flexible layer 1 and described second flexible layer 2, additionally, described 3rd flexibility 6 layers is attached to the bottom of described second flexible layer 2 by sedimentation, and described 3rd flexible layer 6 is arranged at described opening part, described 3rd flexible layer 6 have employed the material such as low Young's moduluss such as rubber and is made.
The shape of described deformation groove 5 can be cube, and the cross section of described deformation groove 5 can also use the irregular shapes such as up big and down small.
Specific embodiment four:
A kind of fexible film mechanism based on hot bubble type ink jet printing head, described fexible film includes the first flexible layer 1 and the second flexible layer 2, described first flexible layer 1 is attached on described second flexible layer 2 by sedimentation, described deformation groove 5 is by the second flexible layer 2 described in etch, in the space that described hydraulic fluid 4 is arranged at described driving chamber 3 and described fexible film surrounds.
Described first flexible layer 1 have employed compressive stress film, and described second flexible layer 2 have employed tensile stress film, it addition, described filling block 7 is arranged in described deformation groove, described filling block 7 have employed the material such as low Young's moduluss such as rubber and is made.
Specific embodiment five:
A kind of fexible film mechanism based on hot bubble type ink jet printing head, described fexible film includes the first flexible layer 1 and the second flexible layer 2, described first flexible layer 1 is attached on described second flexible layer 2 by sedimentation, described deformation groove is by the second flexible layer 2 described in etch, in the space that described hydraulic fluid 4 is arranged at described driving chamber 3 and described fexible film surrounds.
Described first flexible layer 1 have employed compressive stress film, described second flexible layer 2 have employed tensile stress film, first on described second flexible layer 2, form described deformation groove 5 by etch, then being deposited on by the first flexible layer 1 on described second flexible layer 2, due to the effect of gravity, the portion of material of described first flexible layer 1 can fall in described deformation groove 5, and deformation groove is filled up, meanwhile, on the first flexible layer 1, the position above deformation groove 5 there will be a groove.
Specific embodiment six:
A kind of fexible film mechanism based on hot bubble type ink jet printing head, described fexible film includes the first flexible layer 1 and the second flexible layer 2, described first flexible layer 1 is attached on described second flexible layer 2 by sedimentation, described deformation groove is by the second flexible layer 2 described in etch, in the space that described hydraulic fluid 4 is arranged at described driving chamber 3 and described fexible film surrounds.
Described first flexible layer 1 have employed compressive stress film, described second flexible layer 2 have employed tensile stress film, first on described first flexible layer 1 and described second flexible layer 2, form described deformation groove 5 by etch, then being deposited on by the 3rd flexible layer 6 on described first flexible layer 1, due to the effect of gravity, the portion of material of described 3rd flexible layer 6 can fall in described deformation groove 5, and deformation groove is filled up, meanwhile, on the 3rd flexible layer 6, the position above deformation groove 5 there will be a groove.
Present invention fexible film based on hot bubble type ink jet printing head mechanism provides the benefit that: being extruded by bubble when, bigger displacement can be produced, and can be in the case of not by external force, fexible film can be directly, quickly restore to the original state reproducible.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (8)
1. a fexible film mechanism based on hot bubble type ink jet printing head, it is characterised in that including: pressure chamber, spray orifice, driving chamber, hydraulic fluid, deformation groove and fexible film, the top in described driving chamber is provided with opening,
Described fexible film includes the first flexible layer, second flexible layer and the 3rd flexible layer, described first flexible layer uses compressive stress film, described second flexible layer uses compressive stress film or tensile stress film, described first flexible layer is attached on described second flexible layer, described deformation groove is arranged on described first flexible layer or described deformation groove is arranged on described second flexible layer or described deformation groove is arranged on described first flexible layer and described second flexible layer simultaneously, and described deformation groove is when being arranged on described first flexible layer and described second flexible layer, described 3rd flexible layer is attached to the bottom of described second flexible layer by sedimentation or is attached on described first flexible layer,
Described deformation groove is positioned at the surface of the axis of symmetry of described opening, described fexible film is arranged at described opening part, in the space that described hydraulic fluid is arranged at described driving chamber and described fexible film surrounds, the bottom of described pressure chamber is arranged on described fexible film, and described spray orifice is arranged at the top of described pressure chamber.
Fexible film mechanism based on hot bubble type ink jet printing head the most according to claim 1, it is characterised in that when described first flexible layer and described second flexible layer have employed compressive stress film, described deformation groove is arranged on described first flexible layer.
Fexible film mechanism based on hot bubble type ink jet printing head the most according to claim 1, it is characterized in that, described first flexible layer have employed compressive stress film, and described second flexible layer is when have employed tensile stress film, described deformation groove is arranged on described second flexible layer or is arranged on described first flexible layer and described second flexible layer.
Fexible film mechanism based on hot bubble type ink jet printing head the most according to claim 3, it is characterized in that, also include that, when filling block, described deformation groove are arranged on described first flexible layer and described second flexible layer, described filling block is arranged at the bottom of described deformation groove.
Fexible film mechanism based on hot bubble type ink jet printing head the most according to claim 3, it is characterized in that, also including filling block, when described deformation groove is arranged on described second flexible layer, described filling block is arranged in the described deformation groove on described second flexible layer.
6. according to the fexible film mechanism based on hot bubble type ink jet printing head described in claim 4 or 5, it is characterised in that described filling block have employed rubber and is made.
Fexible film mechanism based on hot bubble type ink jet printing head the most according to claim 1, it is characterised in that described 3rd flexible layer have employed the Young's modulus material less than 10GPa and is made.
Fexible film mechanism based on hot bubble type ink jet printing head the most according to claim 1, it is characterised in that described hydraulic fluid have employed non-corrosive liquid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410340653.4A CN104085194B (en) | 2014-07-17 | 2014-07-17 | Fexible film mechanism based on hot bubble type ink jet printing head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410340653.4A CN104085194B (en) | 2014-07-17 | 2014-07-17 | Fexible film mechanism based on hot bubble type ink jet printing head |
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| CN104085194B true CN104085194B (en) | 2016-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2144470C1 (en) * | 1998-11-03 | 2000-01-20 | Самсунг Электроникс Ко., Лтд. | Microinjector and method for its manufacture |
| KR100325521B1 (en) * | 1998-12-10 | 2002-04-17 | 윤종용 | Method for manufacturing fluid injector and fluid injector manufactured thereby |
| JP2001162804A (en) * | 1999-12-10 | 2001-06-19 | Canon Inc | Liquid ejection head, head cartridge, and device for ejecting liquid |
| JP4661354B2 (en) * | 2005-05-20 | 2011-03-30 | ブラザー工業株式会社 | Liquid transfer device |
| US8696092B2 (en) * | 2012-07-19 | 2014-04-15 | Eastman Kodak Company | Liquid dispenser including active membrane actuator |
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Address after: 215000 Second Floor, No. 3 Dongjing Industrial Square, No. 8 Dongfu Road, Suzhou Industrial Park, Jiangsu Province Patentee after: SUZHOU YUEFA PRINTING TECHNOLOGY Co.,Ltd. Address before: 215000 Second Floor, No. 3 Dongjing Industrial Square, No. 8 Dongfu Road, Suzhou Industrial Park, Jiangsu Province Patentee before: Suzhou Xinruifa Technology Co.,Ltd. |