CN1108182A - Ion ink spray head and ion ink spray device - Google Patents
Ion ink spray head and ion ink spray device Download PDFInfo
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- CN1108182A CN1108182A CN 94110864 CN94110864A CN1108182A CN 1108182 A CN1108182 A CN 1108182A CN 94110864 CN94110864 CN 94110864 CN 94110864 A CN94110864 A CN 94110864A CN 1108182 A CN1108182 A CN 1108182A
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Abstract
It contains ion source, modulation board and ink drop enerating chamber. The ion source is a cavity with a long and narrow opering corresponding to the long and narrow control opening of the modulation board, on two long sides of the control opening, there are arranged many control grids capable of conducting the modulation simultaneously mutiple information elements to the stripe shape ion beam sprayed from the ion source, the modulated ion beam correspondingly enters the ink drop generating chamber and neutralizes the ink fog with apposite charge in the chamber, then the ink drop is produced and sprayed out. The advantages are high speed and resolution.
Description
The present invention relates to the ink-jet printing technology field, specifically is about ionic formula continous inkjet device, and this device can spray the long ink droplet chain of certain dimension from the ink droplet ejiction opening simultaneously, thereby carries out the row printing of certain width.
Existing ink-jet printing apparatus, utilization be ink-jet technology at random, as making ink be extruded and spray by nozzle from static concave moon surface state by being added in electric pulse on the piezoelectric crystal; Or utilize heat energy in ink, to form gas blowout, thereby ejection ink droplet; Also has electric charge control type ink-jet technology or the like.Conclude, existing ink-jet printing apparatus, because the restriction of its principle and structure, the frequency of the ink droplet that is produced is low, speed is slow, droplet size is difficult to control, yield is big, causes its printing effect to have that resolution is low, print speed printing speed slow, be difficult to realize shortcomings such as many gray scales and broken colour printing.
The objective of the invention is to adopt the ion ink-jet technology, the ion ink gun and the ion ink discharge device that design high speed, high resolving power, can realize many gray scales and broken colour printing, the ink droplet yield are little.
The design of ion ink gun of the present invention and ion ink discharge device is based on the production method of a kind of drop (ink droplet) of the following stated, this method is: ink (or printing ink) is atomized, and make ink mist charged, rely on droplet self with electric charge, between droplet, produce electrostatic repulsion, to resist the acting force that produces cohesion between the droplet.Charged droplet is bound in certain space, therefore has certain cohesion trend again.Produce and the electrical opposite ion beam of droplet by ion gun, after modulation, enter charged droplet space of living in, electrical neutralization takes place with charged droplet, eliminated and resisted the electrostatic repulsion forces of droplet cohesion, thereby made the ink mist cohesion, produced ink droplet with given pace.This method has been applied for Chinese patent by the applicant, and application number is 93115639.4.
Technical scheme of the present invention is as follows:
A kind of ion ink gun disclosed by the invention, hereinafter referred to as ink gun A, be to fix and the ion gun that combines by support, modulation panel and ink droplet generating chamber constitute, ion gun produces the ion beam with given pace and directivity, the ejiction opening that has ion beam, applied the electric signal that contains the recorded information element on the modulation panel, this signal acts on the ion beam that ion gun produces, have on the modulation panel and the corresponding control mouth of ionogenic ejiction opening, ink droplet generating chamber has and this control mouthful corresponding ion inlet and ink droplet outlet, and the ink mist that is connected with ink mist conveyance conduit inlet.Ion gun wherein constitutes the device that can produce the ion beam with given pace and beam diameter by corona wire, isolated metallic cavity and negative electrode.Isolated metallic cavity has floating potential.Some small pores are arranged on the ion gun base plate, can filter the air that enters the ion gun inner space.Modulation panel mainly is by grid wherein ion beam to be modulated, and mouthful is the grid that symcenter is arranged with mutually insulated with modulation on the modulation panel, and grid can be made of two pole plates that insert modulation voltage, and ion beam forms ion cluster through out-of-date.The grid that arrange on control mouthful both sides is corresponding being arranged in parallel, and also can be to intersect to be arranged in parallel.Face also is provided with the intercepting electrode that the pole plate by a band slit constitutes before the grid in the modulation panel, and intercepting electrode and grid all are arranged on the edge of control mouthful, and its gap is less than other position.Leave air gap between ion gun and the modulation panel, to discharge and discrete ion through modulation.Comprise the ink mist of being carried by the ink mist conveyance conduit in the ink droplet generating chamber, this ink mist has certain electric charge.The locular wall of ink droplet generating chamber is combined by insulation course and metal level and constitutes, and metal level is a chamber wall, and insulation course is an outer chamber walls, and metal level has certain current potential, and it is electrically identical with charged ink mist electrically.Control mouth on ionogenic ejiction opening, the modulation panel, the ion of ink droplet generating chamber inlet and ink droplet outlet all correspond to long and narrow slit.
Ion gun, modulation panel and ink droplet generating chamber are three vitals of the present invention.Every technical indicator of the ion beam that ion gun produced as the normalized emittance of the speed of ion, ion beam current density, ion beam etc., all directly influences ink droplet and produces difficulty or ease that frequency, ink droplet produce etc., and then influences the multinomial technical indicator of ink jet printing.Modulation panel is modulated ion beam, the line density of the control gate level on the modulation panel, directly influence printed resolution, modulation panel also should satisfy under the condition of physical strength, thin as much as possible, with the harmful effect of minimizing, and require when a certain grid carries out ion beam modulation control separately ion beam, little to the ion disturbance in other grid control module zone.Ink droplet generating chamber provides the ion after the modulation panel modulation electrically neutralization to take place to form the space of ink droplet with the ink mist of being with the xenogenesis electric charge.Aperture plate by certain voltage can be set in ink droplet generating chamber inside, so that the ink mist that loses because of the electrical neutralization of ion and charged ink mist obtains in time balanced replenishing, in addition, ink droplet generating chamber must fetter charged ink mist effectively, does not overflow outdoor with assurance.
Another kind of ion ink gun disclosed by the invention, be designated hereinafter simply as ink gun B, be to fix and the ion gun that combines, modulation panel, ink droplet generating chamber, ink mist conveyance conduit and storage fog chamber constitute by support, ion gun has the ejiction opening of ion beam, have on the modulation panel and the corresponding control mouth of this ejiction opening, ink droplet generating chamber has and this control mouthful corresponding ion inlet and ink droplet outlet, ink droplet generating chamber also has the ink mist inlet that is connected with the ink mist conveyance conduit, and the other end of ink mist conveyance conduit is connected with the storage fog chamber.The storage fog chamber is used to store charged ink mist and carries ink mist to ink droplet generating chamber, and its chamber wall is a metal level, and this metal level is connected to the electrical consistent current potential with the charged ink mist of store, and also is provided with the space potential exploring electrode with its locular wall insulation in the storage fog chamber.
Ink gun B is based on ink gun A, the ink gun that volume is big slightly forming in conjunction with the storage fog chamber again, and the process that they finish ink jet printing is identical.
A kind of ion ink discharge device disclosed by the invention, hereinafter to be referred as device A, it is the ion gun of being fixed and being combined by support, modulation panel, ink droplet generating chamber, the ink mist conveyance conduit, storage fog chamber and spray chamber constitute, ion gun has the ejiction opening of ion beam, have on the modulation panel and the corresponding control mouth of this ejiction opening, ink droplet generating chamber has and this control mouthful corresponding ion inlet and ink droplet outlet, ink droplet generating chamber also has the ink mist inlet that is connected with the ink mist conveyance conduit, the other end of ink mist conveyance conduit is connected with the storage fog chamber, the storage fog chamber also is to be connected by the ink mist conveyance conduit with spray chamber, and spray chamber is to be used to produce charged ink mist and to storage fog chamber conveying.Be provided with the rotating disk of charged high speed rotating in the spray chamber, this rotating disk acts on ink and produces charged ink mist.Also be provided with the magnet or the coil that can produce static magnetic field in the spray chamber, this static magnetic field deflects charged ink mist movement locus and carries toward the storage fog chamber along the direction of ink mist conveyance conduit.Spray chamber among the device A, storage fog chamber, ink droplet generating chamber chamber wall separately are metal level, insulate each other, and current potential that each metal level connects by said sequence from high to low, utilize this stepped electric potential difference to be beneficial to the conveying of charged ink mist.
Device A is a complete ink discharge device, as long as ink is in liberal supply, just can carry out continuous ink jet printing under machinery control and electric control.Device A also is an ink gun in form, and it is structurally based on ink gun A or ink gun B.And ink gun A and ink gun B be actual when carrying out printing operation, and it is supporting with it still can to store fog chamber or spray chamber, is that supporting mode can be different from device A.
Another kind of ion ink discharge device disclosed by the invention, hereinafter to be referred as device B, it is by ion gun, modulation panel, ink droplet generating chamber, the ink mist conveyance conduit, storage fog chamber and spray chamber constitute, ion gun has the ejiction opening of ion beam, modulation panel has and the corresponding control mouth of this ejiction opening, ion gun and modulation panel are fixed by support and are combined, ink droplet generating chamber has with the control mouth of modulation panel corresponding, the ion inlet of long and narrow seam shape and ink droplet outlet, the slit length of ion inlet and ink droplet outlet equates with the limit width of whole ink-jet printing apparatus printing or is close, ink droplet generating chamber be fixed on the printing equipment and be arranged at modulation panel and recording materials between, ink droplet generating chamber is connected with storage fog chamber and spray chamber by the ink mist conveyance conduit, the combination of ion gun and modulation panel is in when printing, can move continuously or a section moves.The length direction of the ion of long and narrow seam shape inlet and ink droplet outlet is a horizontal direction in the ink droplet generating chamber, and is perpendicular with the page orientation of recording materials.Control mouth on the modulation panel is the narrow and long rectangular with certain level width, and its horizontal length direction is consistent with modulation panel and the moving direction of ionogenic combination when printing, and is horizontal direction.
Device B is compared with device A, its ink droplet generating chamber is bigger, be rectangular box-shaped, and be to be fixed on the printing equipment, when carrying out ink jet printing, the combination of ion gun and modulation panel produces the ion cluster chain that contains the recorded information element, by moving horizontally of this combination, these ion clusters enter from the slit-shaped ion inlet of ink droplet generating chamber, electrically neutralization takes place with the charged ink mist with the xenogenesis electric charge wherein, make ink mist be condensed into ink droplet and spray ink droplet to export, on recording materials, form the seal point, finish printing process.Device B is when carrying out ink jet printing, come and go mobile because the combination of ion gun and modulation panel carries out level, the ion cluster chain that this combination sprayed enters ink droplet generating chamber from scan mode, therefore electrically neutralization does not always take place and is condensed into ink droplet with wherein charged ink mist in the position of a certain unit width in ink droplet generating chamber in these ion clusters, like this, ion cluster can be inexcessive because of the electrical neutralization at a certain position, so that owing to charged ink mist supply is not gone up and influenced printing quality.Device B can guarantee that ion cluster with the charged ink mist of equilibrium electrically neutralization takes place always, also reduced spray chamber simultaneously in the requirement of carrying aspect the ink mist.
Though above-mentioned ink gun A, ink gun B, device A and device B structure are not quite similar, and realize that the principle of ink jet printing is identical.At first produce ion beam with given pace and directivity by ion gun, pass through modulation panel, intercept by the slit that wherein intercepts electrode, form the less ion beam of beam diameter, and then pass through grid, be added in the electric signal modulation of the recorded information element that the control voltage on the grid can be imported by the outside, the electric weight of this electric signal is directly controlled the size of ion cluster that ion beam forms, thereby controls the size of formed ink droplet.Because under the modulation of grid-control voltage, ion beam has formed the ion cluster chain that contains the recorded information element, these ion clusters pass through from the control mouth of modulation panel, enter ink droplet generating chamber from the ion inlet,, make ink mist be condensed into ink droplet, and spray with the electrically neutralization of charged ink mist generation of xenogenesis electric charge with wherein from the ink droplet outlet of ink droplet generating chamber, be sprayed onto on the surface of recording materials, thereby finish printing process.Above-mentioned ink gun A, ink gun B, device A and device B are to serve as the basic element of character of enforcement ink-jet with ion gun, three parts of modulation panel and ink droplet generating chamber, structure is also similar, just in the structure of ink droplet generating chamber and annexation and storage fog chamber, the aspects such as annexation of spray chamber are different.
That ion source device among the present invention can produce is stable, at a high speed, the little ion beam of normalized emittance of big, the bundle of beam current density, electrically neutralization correspondingly by taking place with charged ink mist in the ion beam of this high velocity jet, can produce to high-frequency ink droplet and drive ink droplet and fly to recording materials, carry out the high speed ink jet printing; Base plate in the ion gun adopts the screen pack with small pore, can elimination enter the airborne dust in ion gun inner space, guarantees that ion gun works for a long time reliably.Can arrange the control grid of higher density on the modulation panel among the present invention, by being added in the control voltage on the grid, can accurately control ion beam at an easy rate, strip ion beam for the certain dimension length of having of ion gun generation, modulation panel can carry out the modulation of multiple information simultaneously on this dimension is long, therefore can further improve ink droplet and produce frequency, thereby further improve print speed printing speed; The substrate of modulation panel has enough physical strengths and electric property, a plurality of control electrodes or element that ion beam is modulated all can be integrated on the modulation panel, therefore improved the quantity of information that the long strip ion beam of unit dimension is comprised, thereby can obtain high-resolution printing effect, improve the multinomial performance index of ink-jet printing apparatus, control voltage in the modulation panel on the control grid, owing to contain the modulation of the electric signal of recorded information element, make grid produce the electric field of intensity size variation, and ion beam modulated, produce a series of different ion cluster chains, and then obtain to have the ink droplet of size variation, thereby realize the ink jet printing of multi-grayscale.Utilize ion ink gun of the present invention and ink discharge device, combine by a plurality of ion ink guns that can produce the different colours ink droplet, thereby very easily realize colored printing.Ink gun of the present invention and ink discharge device are when carrying out ink jet printing, has only the cohesion ink droplet ejection ink droplet generating chamber that takes place electrically to neutralize with ion cluster and comprise the recorded information element, other ink mist then still is bound in the ink droplet generating chamber, therefore need not to carry out the recovery of ink droplet.Constitute the guiding air gap between ion gun among the present invention and the modulation panel, with so that in time discharge because of the discrete ion of modulation, thereby avoid disturbance other ion.Ink droplet generating chamber can fetter and additional ink mist preferably.The ink mist feed system that is made of storage fog chamber, spray chamber and ink mist conveyance conduit can produce reliably and carry and meet the charged ink mist that ink jet printing requires.
In sum, utilize ink-jet printing apparatus of the invention process to have high speed, high resolving power, can realize many gray scales and broken colour printing, advantage such as the ink droplet yield is little.
Below in conjunction with accompanying drawing the present invention and embodiment are described.
Fig. 1 is the basic structure decomposition diagram of ink gun A;
Fig. 2 is the vertical view of the section of Fig. 1 on horizontal symmetry axis;
Fig. 3 is the decomposition diagram of an embodiment in intermediate ion of the present invention source;
Fig. 4 is the transversal profile vertical view of the ejiction opening of ion shown in Fig. 3 (1400);
Fig. 5 is the outward appearance skeleton view of an embodiment of modulation panel among the present invention;
Fig. 6 is the transversal profile vertical view of Fig. 5;
Fig. 7 a and Fig. 7 b are the plane perspective view of the dual mode that grid is arranged on the modulation panel shown in Figure 5;
Fig. 8 is the decomposition diagram of an embodiment of ink droplet generating chamber among the present invention;
Fig. 9 is the side sectional view of Fig. 8;
Figure 10 is the decomposition diagram of an embodiment of the ink mist feed system that is made of storage fog chamber, spray chamber and ink mist conveyance conduit among the present invention;
Figure 11 is the skeleton view of an embodiment of using the ion ink-jet printing apparatus of the present invention's design.
In above-mentioned figure, the parts of identical numbering have been realized to obtaining the identical function that identical result designs.
In Fig. 1, reflected the basic structure of critical piece of the present invention, promptly the basic structure of forming with ion gun, modulation panel and ink droplet generating chamber can have different combinations between them.As Fig. 1, a long and narrow ion beam ejiction opening (1400) is arranged on the ion gun (1000), the ion beam that ion gun (1000) produces forms the strip bundle through ejiction opening (1400) ejection; The corresponding ejiction opening of modulation panel (2000) (1400) has a long and narrow control mouthful (2500), is controlling mouthful (2500) arranged on both sides control grid (2200), in order to the strip ion beam through control mouthful (2500) is carried out polynary modulation; The corresponding control of ink droplet generating chamber (3000) mouthful (2500) has a long and narrow ion inlet, and the ink droplet ejiction opening (3400) of opposite one side, the ink mist neutralization of the band xenogenesis electric charge that the ion after modulation enters with entered the mouth by ink mist (3200) in ink droplet generating chamber (3000), form ink droplet, and spray by ink droplet ejiction opening (3400).
Fig. 2 also is the top view of basic combiner of the present invention, the overall process that the ink droplet of the formation of reactive ion source, modulation panel and ink droplet generating chamber, and reflection from another point of view produces.In ion gun (1000) part, ring-type corona wire (1300) constitutes corona chamber (1500) with the metallic cavity (1200) that is enclosed in outside surface by insulator.After corona wire (1300) connects positive high voltage, form highfield between metallic cavity (1200) and the negative electrode (1100), the most advanced and sophisticated generation of negative electrode (1100) glow discharge, make the air ionization between ion ejiction opening (1400) marginal portion of negative electrode (1100) and metallic cavity (1200), electronics wherein or negative ion are captured by metallic cavity (1200), and positive ion sprays through ion ejiction opening (1400).In said process, metallic cavity (1200) is equivalent to be positioned at a suspension electrode between corona wire (1300) and the negative electrode (1100), it provides a floating potential, the discharge of the negative electrode (1100) that can cause various uncertain factors changes, correspondingly change, thereby, and obtain the little ion beam of normalized emittance that beam current density is big, restraint thus easily for the stable generation of ion beam provides reliable guarantee.In addition, in a large amount of positive ions that corona chamber (1500) produce, a part is flowed out by the slit that metallic cavity (1200) two walls constitute, and together sprays from ion ejiction opening (1400) with the high-speed ion that is produced by negative electrode (1100).
Modulation panel (2000) is by intercepting electrode (2100) and grid (2200) and dielectric substrate formation, grid (2200) is arranged in parallel on control mouthful (2500) both sides, perpendicular with the long limit of control mouthful (2500), intercepting electrode (2100) ground connection, control grid (2200) adds the positive voltage of modulation, stop the field so between intercepting electrode (2100) and control grid (2200), form static, the number by the ion at control grid (2200) edge can be controlled in this static prevention field, thereby reaches the purpose of modulating ion beam.Owing to insulate between the control grid (2200), each control grid (2200) can be controlled an effective coverage separately, therefore, each control grid (2200) zone on every side, be equivalent to the aperture that can regulate ion beam, control mouthful (2500) just is equivalent to the compact arranged aperture string of row.The closeness that grid (2200) is arranged in control mouthful (2500) is high more, and is also just high more to the resolution of ion beam.The ion beam of coming from ion gun (1000) through the control mouth (2500) on the modulation panel (2000) after, just be modulated into the ion cluster chain that has a plurality of information elements.
Ink droplet generating chamber (3000) is by a metallic cavity (3100) and aperture plate (3300) and insulator formation, and it is gone up with modulation panel (2000), and control mouthful (2500) is relative should an ion inlet.Ion cluster chain after modulation is in ink droplet generating chamber (3000), and the electrically neutralization of ink mist generation with band xenogenesis electric charge forms the ink droplet chain, through ink droplet ejiction opening (3400) ejection, thereby has carried out the ink jet printing of certain dimension length simultaneously on recording medium.The effect of aperture plate (3300) is to help charged ink mist by in the ion and after the ejection, can rapidly, balancedly mend new charged ink mist, correspondingly, imports the ink mist inlet (3200) of charged ink mist in addition in ink droplet generating chamber (3000).
Shown in Figure 3 is an ionogenic embodiment, and the ion gun among the figure constitutes by base plate (1201), minus plate (1101), inside casing (1301) and housing (1401) are common.Base plate (1201) props up (1220) in conjunction with constituting by insulation course (1210) and metal, the small pore that on base plate (1201), has many two sides to connect mutually, its effect is to filter the air that enters in the whole ion source device, avoid the dust impurity in the gas that discharge effect is produced harmful effect, guarantee that ion gun for a long time, stably work.Tungsten cathode (1100) in the minus plate (1101) is surrounded by insulation course (1110), only exposes tip portion, to limit its region of discharge.Minus plate (1101) links together by cathode aperture (1250) and base plate (1201), inside casing (1301) is made up of an insulation frame and the metal level (1200) that covers its appearance, inside casing (1301) has elementary outlet (1350), on inside casing (1301) four arms of angle, an insulation support body (1310) is arranged respectively, in order to support corona wire (1300); Housing (1401) is made up of an insulator frame and the surperficial within it metal level (1200) of lid, and housing (1401) has an ion beam ejiction opening (1400).The metal level (1200) of base plate (1201), inside casing (1301), (1401) three parts of housing couples together, and can constitute a metallic cavity, i.e. corona chamber (1500) just constitute ion source device after refilling minus plate (1101).
Fig. 4 is the amplification vertical view of ion gun ejiction opening (1400) shown in Figure 3.The highfield that tungsten cathode (1100) in insulation course (1110) and metallic cavity (1200) form, make tungsten cathode (1100) produce high energy electron, high energy electron excites air ionization, elementary outlet (1350) at inside casing (1301) locates to form strong plasma, electronics in the plasma or load ion are subjected to the effect of metallic cavity fringe field, low-velocity electron or load ion are captured by inside casing (1301) metal level edge (1330), and high-velocity electrons or secondary electron are absorbed by housing (1401) metal level edge (1410).Positive charge ions in the plasma together sprays from ejiction opening (1400) with the positive charge ions of escaping from slit, corona chamber (1500) (1340).The insulator (1320) of inside casing among the figure (1301) and the insulator (1420) of housing (1401) have the effect of shaping to ion beam, in order to obtain the ion beam of less normalized emittance.Whole ion gun ejiction opening part, because its size is very little, about 10 μ m-100 μ m, therefore the accuracy requirement height, considers to adopt the excimer laser forming technology, for the metal level on insulator (1320) and the insulator (1420), can adopt the technology of ion plating to obtain.Insulator (1320) and insulator (1420) should adopt wear-resistant, high voltage withstanding, resistant to elevated temperatures quartz or stupalith.
Fig. 5 is the embodiment of modulation panel, and modulation panel (2000) is made of intercepting electrode (2100), insulcrete (2300), grid (2200) and dielectric film (2400).Fig. 6 is the top view of this modulation panel (2000).The intercepting electrode (2100) of ground connection can be regarded the extraction pole of ion gun (1000) as near ion ejiction opening (1400) part, ion beam is had the effect of shaping.It is very near apart at the edge of control mouthful (2500) with intercepting electrode (2100) to control grid (2200), between control grid (2200) and intercepting electrode (2100), add a positive bias, just can form a very strong prevention electrostatic field in control grid (2200) peripheral region, force spray to this regional ion outwards take place discrete, thereby ion beam is modulated.Therefore modulation panel (2000) has certain angle, draws the little ion beam of emittance easily, and can avoid the interference of modulated, discrete other ion of ion pair.
Fig. 7 shows the plane perspective view of two embodiment of modulation panel (2000), and the difference of these two kinds of schemes is to control the change in location that grid (2200) is arranged on control mouthful (2500) both sides.Control the arrangement of grid (2200) among Fig. 7 a, can under small voltage, obtain higher prevention field; Control the arrangement of grid (2200) among Fig. 7 b, can control single electrode monolaterally and obtain high-resolution.Be modulated on the ion beam because modulation panel (2000) is the electric signal with the hard copy information element, therefore, the architectural feature of modulation panel (2000) directly influences the effect of printing.Because the closeness of control grid (2200) is relevant with the vertical resolution of printing, the width of control mouthful (2500) is relevant with the horizontal resolution of printing, therefore, application excimer laser forming technology is considered in the formation of control mouthful (2500), for the arrangement of control grid can application integrated circuit Wiring technique, to obtain high integrated level, the insulcrete of modulation panel (2000) and dielectric film (2400) should adopt quartz, stupalith and the macromolecular material that meets electric property.
Fig. 8 is an embodiment of ink droplet of the present invention generating chamber.Ink mist conveyance conduit (3700) and air gap (3600) are arranged in the both sides of ink droplet generating chamber (3000), and air gap (3600) is in order to discharge through modulating discrete ion.
Fig. 9 is the top view of ink droplet generating chamber (3000).Ink droplet generating chamber (3000) constitutes locular wall by insulation course (3500) and metal level (3100), charged ink mist enters through ink mist inlet (3200), metal level (3100) is connected to and the electrical identical voltage of ink mist, therefore the fringe region at ion inlet (3600) and ink droplet ejiction opening (3400) forms very strong fringe field, thereby charged ink mist is strapped in the ink droplet generating chamber, can not overflow outdoorly, the aperture plate (3300) in the ink droplet generating chamber (3000) has rapidly, the balanced effect that replenishes charged ink mist.
Ink droplet generating chamber (3000) is less demanding to material, can be with the insulating material of general easy machine-shaping as polyimide, polyether etherketone, or the thermoplastic resin of poly-inkstone and so on, being easy to moulding, metal level (3100) can be the metal film that is plated on the insulation course (3500).Processing technology to ion inlet (3200) and ink droplet ejiction opening (3400) is had relatively high expectations.
Figure 10 is the synoptic diagram of an embodiment of ink mist feed system among the present invention.Whole ink mist feed system is made of storage fog chamber (4000), ink mist conveyance conduit (5000), spray chamber (6000), ink supplying pipe (6200) ink inside splashes on the atomizing rotating disk (6100), connect the atomizing rotating disk (6100) of negative high-voltage and pole plate (6400) the formation atomizing electric field of ground connection, ink droplet is electron gain when atomizing rotating disk (6100) is gone up the generation atomizing, become load ink mist particulate, and under the electric field force effect, fly to pole plate (6400).In its process, the vertical magnetic field (6300) through certain intensity so the movement locus of ink mist changes, is compulsorily entered into the ink mist conveyance conduit (5000) that connects certain negative voltage after the deflection, arrives storage fog chamber (4000) at last.There is ink mist delivery outlet (4300) storage fog chamber (4000), space potential exploring electrode (4100) in the storage fog chamber (4000) is in order to detect the space charge amount of charged ink mist, to regulate the suitable ink mist concentration and the carried charge of single droplet, guarantee stable the carrying out of printing.Between spray chamber (6000) and the ink mist conveyance conduit (5000) insulator (5600) is arranged.On metal level (5200) and metal level (4200), add higher and lower negative voltage respectively, make spray chamber (6000) and storage fog chamber (4000) form static " ladder ", thereby make electronegative ink mist promptly enter storage fog chamber (4000) easily from spray chamber (6000).After printing finishes, add opposite voltage difference respectively at metal level (5200) and metal level (4200), thereby can be recovered in the charged ink mist in the ink droplet generating chamber.In the present embodiment, adopt direct charged method to make ink mist charged, the metal rotary disk of high speed rotating (6100) is easy to generate evenly trickle charged ink mist.At present, the type of atomizer is a lot, and the present invention requires is a kind of ultra-low volume, efficient height, easily produce the atomizer of the droplet of superfine, and preferably can directly make droplet charged.The atomizer of being made by certain piezoelectric crystal might reach above-mentioned requirements.
Figure 11 is the skeleton view of one embodiment of the present of invention.Drive motor (8100) drives transmission gear (8200) and (8300) by positive and negative rotation, thereby make drive screw (8400) rotation, helicla flute (8410) is arranged on the screw rod (8400), ink mist spray chamber (6000) socket and as the base of ink gun with it, the ion ink gun (1230) that storage fog chamber (4000) is arranged above it and closely constitute by ion gun (1000), modulation panel (2000), ink droplet generating chamber (3000).This structure is actually above-mentioned ion ink discharge device A.Along with the positive and negative rotation of screw rod (8400), drive moving around of support, thereby on recording materials p, carry out ink jet printing line by line.Recording materials p is carried by cylinder (9000), and high voltage source (7000) offers ion gun (1000) and atomizer (6000) high voltage with necessity.
Ink gun B just combines ink-jet A and storage fog chamber (4000).Device B is that ink droplet generating chamber (3000) is fixing separately and change into rectangular box-like, thereby guarantee the modulated ion cluster chain of modulation panel (2000) ejection, can be all the time with the charged ink mist of equilibrium electrically neutralization takes place and reduce requirement to the ink mist feed system, ink mist be easier to be replenished.Ink gun B is similar with the course of work of device A to ink gun A respectively with device B, not in addition with description of drawings.
The present invention can be used for what is called " full line type (full-line type) record-header " effectively, and the length of this record-header is consistent with the dominant record width.This record-header can comprise a unirecord head and a compound record-header that is distributed in the combination on the whole width.
In addition, the ion gun among the present invention (1000), (3000) three parts of modulation panel (2000) and ink droplet generating chamber can have multiple combination, therefore can constitute the ion ink discharge device of multiple different structure mode.For example: ion gun (1000) and modulation panel (2000) are combined as a whole, ink droplet generating chamber (3000) is horizontally fixed on the position of close recording materials, the slot of ink droplet generating chamber (3000) is corresponding with the long and narrow control mouth of modulation panel (2000), carry out the wide printing of certain dimension by the rotation of recording materials, this is actually a kind of application mode of device B, be particularly suitable for the faxing printing of a class of this structure.
The present invention can be the unirecord head corresponding with monochromatic ink, or has the compound record-header of the ink material of different recording color or concentration.The present invention can be used for having a kind of of following several types at least effectively: be mainly the black type; The polychrome type that the different colours ink is arranged; And the panchromatic mode of multiple blend of colors.
In the present invention, in order to guarantee the stable of ink droplet, every index of ink mist is also quite important, and this relates to device performance and whole rationality such as comprising atomizer, storage day with fog, charger, fully take into account these factors in the design of the present invention, to realize purpose of the present invention.
The present invention is not too strict to the requirement of ink, but certain selectivity is also arranged.For the ink of printing usefulness, resistivity is an important indicator, preferably selects (10～70) * 10
6Between the Ω cm, surface tension is preferably in 24～36dyn/cm
2In the scope.The low viscosity ink of alcohol-soluble printing ink and so on is operable, and a lot of colored liquids of printing-ink of write ink and dilution and so on also can use.
Based on ink droplet production method of the present invention, if necessary, can in ink (printing ink), add an amount of unionized polar surfactant, or add an amount of magnetic particle, certainly magnetic paint also can, all help the formation of ink droplet.
Ion ink gun of the present invention and ink discharge device can be used as the printing device of computing machine or similar devices, with the copier or the similar devices of image reader combination, also can send and the facsimile recorder of receiving function and the outlet terminal of messaging device etc. as information.
Although with above-mentioned disclosed structure serves as that invention has been described on the basis, be not limited to above-mentioned content, the application also comprises for improved purpose or various modifications and the variation done in claims protection domain.
Claims (21)
1, a kind of ion ink gun, it is characterized in that it is to be fixed and the ion gun, modulation panel and the ink droplet generating chamber that combine constitute by support, ion gun has the ejiction opening of ion beam, have on the modulation panel and the corresponding control mouth of ionogenic ejiction opening, ink droplet generating chamber has and this control mouthful corresponding ion inlet and ink droplet outlet, and ink droplet generating chamber also has the ink mist inlet that is connected with the ink mist conveyance conduit.
2, ion ink gun according to claim 1 is characterized in that ion gun constitutes the device that can produce the ion beam with given pace and beam diameter by corona wire, isolated metallic cavity and negative electrode, and wherein Gu Li metallic cavity has floating potential.
3, ion ink gun according to claim 1 and 2 is characterized in that some small pores are arranged on the ion gun base plate, can filter the air that enters the ion gun inner space.
4, ion ink gun according to claim 1 is characterized in that on the modulation panel that with modulation mouthful be the grid that symcenter is arranged with mutually insulated.
5,, it is characterized in that the grid that the control mouth both sides of control panel are arranged is corresponding being arranged in parallel according to claim 1 or 4 described ion ink guns.
6, according to claim 1 or 4 described ion ink guns, the grid that it is characterized in that the control mouth both sides of control panel is to intersect to be arranged in parallel.
7, according to claim 1 or 4 described ion ink guns, it is characterized in that face before the grid in the modulation panel also is provided with the intercepting electrode that the pole plate by a band slit constitutes, intercepting electrode and grid all are arranged on the edge of control mouth, and its gap is less than other position.
8, ion ink gun according to claim 1 is characterized in that leaving air gap between ion gun and the modulation panel, to discharge through modulation and discrete ion.
9, according to claim 1 or 9 described ion ink guns, it is characterized in that comprising the ink mist of carrying by the ink mist conveyance conduit in the ink droplet generating chamber, this ink mist has certain electric charge.
10, according to claim 1 or 9 described ion ink guns, the locular wall that it is characterized in that ink droplet generating chamber is combined by insulation course and metal level and constitutes, and metal level is a chamber wall, and insulation course is an outer chamber walls, metal level has certain current potential, and it is electrically identical with charged ink mist electrically.
11, ion ink gun according to claim 1 is characterized in that the control mouth on ionogenic ejiction opening, the modulation panel, the ion population and the ink droplet outlet of ink droplet generating chamber all correspond to long and narrow slit.
12, a kind of ion ink gun, it is characterized in that it is to be fixed and the ion gun that combines, modulation panel, ink droplet generating chamber, ink mist conveyance conduit and storage fog chamber constitute by support, ion gun has the ejiction opening of ion beam, have on the modulation panel and the corresponding control mouth of this ejiction opening, ink droplet generating chamber has and this control mouthful corresponding ion inlet and ink droplet outlet, ink droplet generating chamber also has the ink mist inlet that is connected with the ink mist conveyance conduit, and the other end of ink mist conveyance conduit is connected with the storage fog chamber.
13, ion ink gun according to claim 12, the chamber wall that it is characterized in that storing the fog chamber is a metal level, this metal level is connected to the electrical consistent current potential with the charged ink mist of store.
14, ion ink gun according to claim 12 is characterized in that storing the space potential exploring electrode that is provided with in the fog chamber with its locular wall insulation.
15, a kind of ion ink discharge device, it is characterized in that it is the ion gun of being fixed and being combined by support, modulation panel, ink droplet generating chamber, the ink mist conveyance conduit, storage fog chamber and spray chamber constitute, ion gun has the ejiction opening of ion beam, have on the modulation panel and the corresponding control mouth of this ejiction opening, ink droplet generating chamber has and this control mouthful corresponding ion inlet and ink droplet outlet, ink droplet generating chamber also has the ink mist inlet that is connected with the ink mist conveyance conduit, the other end of ink mist conveyance conduit is connected with the storage fog chamber, and the storage fog chamber also is to be connected by the ink mist conveyance conduit with spray chamber.
16, ion ink discharge device according to claim 15 is characterized in that being provided with in the spray chamber rotating disk of charged high speed rotating, and this rotating disk acts on ink and produces charged ink mist.
17, ion ink discharge device according to claim 15 is characterized in that being provided with in the spray chamber magnet or the coil that can produce static magnetic field, and this static magnetic field deflects charged ink mist movement locus and carries toward the storage fog chamber along the direction of ink mist conveyance conduit.
18, according to claim 15 or 17 described ion ink discharge devices, it is characterized in that spray chamber, storage fog chamber, ink droplet generating chamber chamber wall separately are metal level, insulate each other, and current potential that each metal level connects by said sequence from high to low, be beneficial to the conveying of charged ink mist.
19, a kind of ion ink discharge device, it is characterized in that it is by ion gun, modulation panel, ink droplet generating chamber, the ink mist conveyance conduit, storage fog chamber and spray chamber constitute, ion gun has the ejiction opening of ion beam, modulation panel has and the corresponding control mouth of this ejiction opening, ion gun and modulation panel are fixed by support and are combined, ink droplet generating chamber has with the control mouth of modulation panel corresponding, the ion inlet of long and narrow seam shape and ink droplet outlet, the slit length of ion inlet and ink droplet outlet equates with the limit width of whole ink-jet printing apparatus printing or is close, ink droplet generating chamber be fixed on the printing equipment and be arranged at modulation panel and recording materials between, ink droplet generating chamber is connected with storage fog chamber and spray chamber by the ink mist conveyance conduit, the combination of ion gun and modulation panel is in when printing, can move continuously or a section moves.
20, ion ink discharge device according to claim 19 is characterized in that the ion inlet of long and narrow seam shape in the ink droplet generating chamber and the length direction of ink droplet outlet are horizontal direction, and is perpendicular with the page orientation of recording materials.
21, ion ink discharge device according to claim 19, it is characterized in that the control mouth on the modulation panel is the narrow and long rectangular with certain level width, its horizontal length direction is consistent with modulation panel and the moving direction of ionogenic combination when printing, and is horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110864 CN1108182A (en) | 1994-03-10 | 1994-03-10 | Ion ink spray head and ion ink spray device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110864 CN1108182A (en) | 1994-03-10 | 1994-03-10 | Ion ink spray head and ion ink spray device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1108182A true CN1108182A (en) | 1995-09-13 |
Family
ID=5034781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110864 Pending CN1108182A (en) | 1994-03-10 | 1994-03-10 | Ion ink spray head and ion ink spray device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1108182A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087688B (en) * | 2004-12-22 | 2010-05-12 | 佳能株式会社 | Printing apparatus and printing method |
| CN103171289A (en) * | 2011-12-21 | 2013-06-26 | 施乐公司 | Polymer internal contamination filter for ink jet printhead |
| CN103963484A (en) * | 2013-01-25 | 2014-08-06 | 中国科学院理化技术研究所 | Device for charging metal particles |
| CN113682056A (en) * | 2021-07-26 | 2021-11-23 | 华南理工大学 | Electric jet printing nozzle, electric jet printing nozzle array and non-charged ink jet method |
-
1994
- 1994-03-10 CN CN 94110864 patent/CN1108182A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087688B (en) * | 2004-12-22 | 2010-05-12 | 佳能株式会社 | Printing apparatus and printing method |
| CN103171289A (en) * | 2011-12-21 | 2013-06-26 | 施乐公司 | Polymer internal contamination filter for ink jet printhead |
| CN103171289B (en) * | 2011-12-21 | 2016-08-03 | 施乐公司 | Polymeric inner contamination filter for ink jet-print head |
| CN103963484A (en) * | 2013-01-25 | 2014-08-06 | 中国科学院理化技术研究所 | Device for charging metal particles |
| CN103963484B (en) * | 2013-01-25 | 2016-03-23 | 中国科学院理化技术研究所 | Device for charging metal particles |
| CN113682056A (en) * | 2021-07-26 | 2021-11-23 | 华南理工大学 | Electric jet printing nozzle, electric jet printing nozzle array and non-charged ink jet method |
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