Spray printing speed lifting method and deviceTechnical field
The present invention relates to code-spraying printing technical field, more particularly, to a kind of spray printing speed lifting method and device.
Background technology
Continuous inkjet formula (CIJ, continue ink jet) ink jet numbering machine is a kind of by software control, uses noncontact sideThe equipment that formula is identified on product.As client increasingly strengthens the requirement for improving production efficiency, ink jet numbering machine is in low failureCompared to there is significant progress in the past in terms of rate and intellectualized operation, but spray printing speed is because be limited to the reason of ink jet numbering machineBy when the limit and high speed spray printing to the charge control precision of ink dot, so as to cause ink jet numbering machine to have an obvious theoretical spray printingSpeed limit.
The row height of existing ink jet numbering machine is all the character height sum of dot matrix selected by every row information plus being determined by control softwareFixed protection point quantity, so the raising of limit spray printing speed can only pass through following two modes：A, raising dominant frequency, but it is limitedCan in obtain good ink droplet fractured-shape so as to obtain accurate ink droplet carried charge to ensure spray printing quality, dominant frequency improves widthDegree is limited, and improves requirement of the dominant frequency to ink jet numbering machine hardware (electrochemical properties of circuit control panel, nozzle arrangements and ink)It will be substantially improved, so as to be difficult to ensure that the continuous spray printing stability of ink jet numbering machine reaches user's request；B, reduction or cancellation areSpray printing quality and increased protection point are improved, this can equally lift the requirement to ink jet numbering machine hardware.
The content of the invention
In view of this, it is an object of the invention to provide a kind of spray printing speed lifting method and device, to improve continuous sprayThe spray printing speed of black formula ink jet numbering machine.
In a first aspect, the embodiments of the invention provide a kind of spray printing speed lifting method, applied to continuous inkjet formula codingMachine, including：The information generation lattice information of spray printing as needed；Null Spot is determined according to the layout of each column dot matrix in lattice informationThe middle point for needing to delete；Above-mentioned Null Spot is to be not required to the point of spray printing in lattice information；The point deletion of deletion will be needed, will be generated newlyLattice information；Spray printing is carried out according to above-mentioned new lattice information.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, rootDetermine to need the point deleted to include in Null Spot according to the layout of each column dot matrix in lattice information：It is many when existing between two available pointsDuring individual Null Spot, the partial invalidity point in multiple Null Spots is defined as to the point for needing to delete；Available point be lattice information in needWant the point of spray printing.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of second of first aspect, wherein, rootDetermine to need the point deleted to include in Null Spot according to the layout of each column dot matrix in lattice information：According to each column dot matrix in lattice informationLayout by the whole of Null Spot be defined as need delete point；The above method also includes：The each column point in new lattice informationOne or more protection points are inserted between battle array any two available point；Protection point is the point not charged.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide the third of first aspectPossible embodiment, wherein, the partial invalidity point in multiple Null Spots is defined as to need the point deleted to include：According to spray printingThe translational speed and dominant frequency of product or shower nozzle determine the row altitude range of lattice information；Multiple nothings are determined according to row altitude rangeThe point deleted is needed in effect point.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide the 4th of first aspect kindPossible embodiment, in addition to：In new lattice information one or more guarantors are inserted between each column any two available pointShield point；Protection point is the point not charged.
Second aspect, the embodiment of the present invention also provides a kind of spray printing speed lifting device, applied to continuous inkjet formula codingMachine, including：Lattice information generation module, the information for spray printing as needed generates lattice information；Point determining module is deleted, is usedIn the point for determining to need to delete in Null Spot according to the layout of each column dot matrix in above-mentioned lattice information；Above-mentioned Null Spot is believed for dot matrixThe point of spray printing is not required in breath；New lattice information generation module, for the point deletion deleted will to be needed to generate new lattice information；SprayImpression block, for carrying out spray printing according to new lattice information.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the first of second aspect, wherein, deleteExcept a determining module is additionally operable to：When there is multiple Null Spots between two available points, by the partial invalidity in multiple Null SpotsPoint is defined as the point for needing to delete；Available point be lattice information in need the point of spray printing.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of second of second aspect, wherein, deleteExcept a determining module is additionally operable to：The whole of Null Spot is defined as according to the layout of each column dot matrix in lattice information to need what is deletedPoint；Said apparatus also includes：Protection point insertion a module, in new lattice information each column dot matrix any two available point itBetween insert one or more protection points；Protection point is the point not charged.
With reference to the first possible embodiment of second aspect, the embodiments of the invention provide the third of second aspectPossible embodiment, wherein, delete point determining module and be additionally operable to：According to the translational speed and dominant frequency of spray printing product or shower nozzleDetermine the row altitude range of lattice information；The point for needing to delete in multiple Null Spots is determined according to row altitude range.
With reference to the first possible embodiment of second aspect, the embodiments of the invention provide the 4th of second aspect kindPossible embodiment, in addition to：Protection point insertion a module, in new lattice information each column any two available point itBetween insert one or more protection points；Protection point is the point not charged.
Continuous inkjet formula ink jet printer for printing speed lifting method and device provided in an embodiment of the present invention, pass through lattice informationMiddle each column dot matrix layout is determined to need the point of deletion in Null Spot and is deleted, so as to reduce the spray printing shared by Null SpotTime, improve the limit velocity of continuous inkjet formula ink jet numbering machine.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from specificationObtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claimsAnd specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinateAppended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior artThe accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing belowAccompanying drawing is some embodiments of the present invention, for those skilled in the art, on the premise of not paying creative work,Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet for the spray printing speed lifting method that the embodiment of the present invention one is provided；
Fig. 2 is the dot matrix schematic diagram that the embodiment of the present invention one is provided；
Fig. 3 is the charging pulse schematic diagram that the embodiment of the present invention one is provided；
Fig. 4 is the structural representation for the spray printing speed lifting device that the embodiment of the present invention two is provided.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present inventionTechnical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather thanWhole embodiments.Based on the embodiment in the present invention, those skilled in the art institute under the premise of creative work is not madeThe every other embodiment obtained, belongs to the scope of protection of the invention.
Current continuous inkjet formula ink jet numbering machine is limited to limit spray printing speed, based on this, one kind provided in an embodiment of the present inventionContinuous inkjet formula ink jet printer for printing speed lifting method and device, can lift the limit velocity of continuous inkjet formula ink jet numbering machine.
For ease of understanding the present embodiment, the CIJ ink jet numbering machines in the embodiment of the present invention are simply introduced first,Its operation principle is as follows：
CIJ ink jet numbering machine operation principles are roughly divided into spray printing data conversion, ink droplet generation, charge phase detection, ink droplet chargingAnd ink droplet deflects 5 parts, the operation principle of each several part is as follows：
Spray printing data conversion：The information of spray printing has numeral, letter, figure, Chinese character and symbol etc., it is necessary first to by spray printingInformation is converted into lattice information by certain algorithm, and the point in these dot matrix can be converted into phase according to the location of oneselfThe magnitude of voltage answered, the data that these magnitudes of voltage really need when being exactly spray printing, it can be passed to charging electrode filling as ink dropletElectric pulse voltage.
Ink droplet occurs：The power source that ink depended on pressure pump is provided reaches shower nozzle by ink system, is produced in compression pumpUnder ink pressure (2500-4000mbar), ink is ejected from the nozzle of a diameter very little (40-75 μm), forms the line of ink marker, nozzleOn the crystal oscillator bar (drive rod) of one is installed, crystal oscillator bar by a fixed frequency (dominant frequency) waveform (sine wave, triangular wave orSquare wave) driving.Crystal oscillator bar of the line of ink marker by fixed concussion, forms the ink droplet uniformly separated.
Charge phase is detected：Charge phase is the charging opportunity of ink droplet, wants to allow sizeable electricity on ink droplet band, is filledElectric opportunity (phase) is extremely important.Ink jet numbering machine control software needs the machine of the electrochemical properties and ink-droplet generator with reference to inkTool characteristic carries out the screening of optimal charge phase (opportunity).The correct selection of charge phase directly determines the spray printing matter of ink jet numbering machineThe stability of amount and continuous long-time high speed spray printing.
Ink droplet charges：Ink jet numbering machine is received after spray printing signal, and control software can be according to the charging voltage convertedData, the control accuracy of ink droplet charging sequentially charged to the ink droplet progress for needing spray printing with the charge phase (opportunity) selected(degree of accuracy) will directly determine the quality of spray printing quality.
Ink droplet is deflected：Different charging voltages ensures that ink droplet will take electric charge of different sizes.Ink droplet leaves charging electricityExtremely enter the high-voltage deflection electric field formed by zero pole plate and high-voltage deflection plate (or positive or negative high voltage deflecting plates), this deflecting electric field afterwardsCharged droplets can be made to deflect, the big amount of deflection of carried charge is big, and the small amount of deflection of carried charge is small.Uncharged ink droplet then will notDeflection, these ink droplets not being electrically charged will be emitted directly toward in the ink recovery device (recovery tube) of shower nozzle afterbody, then return againParticipate in circulating to ink system.The ink droplet being electrically charged can sequentially deflect out recovery tube, direct spray printing to product surface, in combination withThe movement (or shower nozzle movement) of product in itself, will be opened by the ink droplet on spray printing to product by being listed on product moving direction,So as to obtain expected word or pattern.
Embodiment one
The embodiment of the present invention one provides a kind of spray printing speed lifting method, applied to continuous inkjet formula ink jet numbering machine.Referring toThe schematic flow sheet of spray printing speed lifting method shown in Fig. 1, this method comprises the following steps：
Step S11, the information generation lattice information of spray printing as needed.
According to actual needs, the information of spray printing includes numeral, letter, figure, Chinese character and symbol etc., and above- mentioned information is passed throughCertain algorithm is converted into lattice information, and the point in these lattice informations can be converted into corresponding voltage according to locationThe data really needed when value, i.e. spray printing, rear extended meeting is transferred to charging electrode as the charging pulse voltage of ink droplet.Conversion is calculatedMethod can use mode of the prior art, and the present embodiment is without limitation.
Step S12, the point for determining to need to delete in Null Spot according to the layout of each column dot matrix in above-mentioned lattice information.
Wherein, Null Spot is to be not required to the point of spray printing in lattice information.Dot matrix schematic diagram shown in Figure 2, it is 6x8 pointsThe character " E " of battle array, the points that each column is included in the dot matrix are 8, and the points that often row is included are 6, including the null of bottomWith the sky row on right side, it can be clearly seen that the number of the available point (point for needing spray printing) of first row is 7, the available point of secondary seriesNumber is 3, and Null Spot number is 4.In order to improve spray printing speed, it is necessary to reduce row height (each column needs of each column as far as possibleThe points of spray printing, such as the row 6x8 lattice informations of spray printing 2 then arrange height for 16), therefore can be by the part in Null Spot or completePortion is defined as the point for needing to delete, and good spray printing quality is can guarantee that again while lifting spray printing speed to reach.
Step S13, the point deletion that above-mentioned needs are deleted generates new lattice information.
Step S14, spray printing is carried out according to above-mentioned new lattice information.
After above-mentioned new lattice information is obtained, spray printing is carried out according to the new lattice information.
The spray printing speed lifting method that the present embodiment is provided, is determined in Null Spot by each column dot matrix layout in lattice informationNeed the point of deletion and be deleted, so as to reduce the spray printing time shared by Null Spot, improve continuous inkjet formula codingThe limit velocity of machine, and the requirement to ink jet numbering machine hardware is not lifted.
In above-mentioned steps S12, determine to need what is deleted in Null Spot according to the layout of each column dot matrix in above-mentioned lattice informationPoint specifically includes following two modes：
(1) it is when there is multiple Null Spots between two available points, the partial invalidity point in above-mentioned multiple Null Spots is trueIt is set to the point of needs deletion.
Due to the electrochemical properties of ink jet numbering machine ink, it is impossible to continuous to carry out accurately charging to ink droplet, it is necessary to be electrically chargedThe addition of uniform (or having selection) is one or more between ink droplet protects point (ink droplet not charged), therefore only deletes in Null SpotPart, remaining partial invalidity point can play a part of protection point.Specifically, it is determined that needing the point deleted can be by followingMode：
The row altitude range of lattice information is determined according to the translational speed and dominant frequency of spray printing product or shower nozzle；It is high according to rowDegree scope determines the point for needing to delete in multiple Null Spots.
, will be by being listed in moving direction by the ink droplet on spray printing to product by the movement of product or shower nozzle in spray printingOn be opened, so as to obtain expected word or pattern, because after partial invalidity point is deleted, the row height of each column is different,The effect of spray printing character can be influenceed, and spray printing effect is and translational speed and dominant frequency (determining the number of ink droplets per second that can be produced) phaseClose, therefore the scope of row height can be predefined according to translational speed and dominant frequency, determine to need to delete further according to the scopePoint, it is ensured that delete rank rear height in this range, such as the 1/3 to 1/2 of elemental height, thus improve spray printing speed it is sameWhen ensure good spray printing quality.
Further, in order to improve spray printing quality, each column any two can also have in the new lattice information of generationOne or more protection points are inserted between effect point, do not have the situation of Null Spot mainly between two available points.
(2) whole of Null Spot is defined as to the point for needing to delete according to the layout of each column dot matrix in lattice information.
It is understood that can also all delete Null Spot, new lattice information is generated, in order to ensure charging effectWith spray printing effect, one or more protection points are inserted between each column any two available point in new lattice information.
Charging pulse schematic diagram shown in Figure 3, shows the charging pulse of the character " E " shown in spray printing Fig. 2, itsIn upper figure be charging pulse under normal mode, figure below is the charging pulse after the method using the present embodiment.Can be with by upper figureFinding out " E " of one 6x8 dot matrix of spray printing under normal mode needs about 726 microseconds, and without any for raising spray printing qualityAnd increased protection point, speed limit is reached, the points of each column are at 8 points.
After the method for the present embodiment, to only need to about 487 micro- by " E " of one 6x8 dot matrix of spray printing under hyperspin modeSecond, and a protection point, even so spray printing are also added after the first of each column available point in order to improve spray printing qualitySpeed also about improves 50%, and the points of 5 column data each columns are respectively 8,4,4,4,4.
For multirow spray printing (row are highly larger), the present embodiment more can be obviously improved spray printing speed on the basis of original, formerBecause being to arrange highly bigger, the Null Spot in lattice information is more, and the reduction space of actual row height is bigger.
In high speed spray printing in order to ensure spray printing quality, some ink jet numbering machines are reduced using a kind of mode of staggeredly spray printingProtect the use of point, when making spray printing in this way, the point data of each column not in accordance with the charging of dot matrix layout order (1,2,3,4 ...), but according to certain rule the point of each column is carried out staggeredly charging spray printing (such as 1,5,2,6,3,7 ... ..., 10,14,11,15,12,16 ...), even if the spray printing time (row height) of this staggeredly spray printing each column is also fixed, it can similarly makeThe purpose of speed-raising is reached with the method for the present embodiment.
The spray printing speed lifting method that the present embodiment is provided, breaks through original highly changeless spray printing pattern of row, passes throughEach column dot matrix layout is determined to need the point of deletion in Null Spot and is deleted in lattice information, is removed as far as possible in dot array dataNull Spot, realizes that row are highly automated variable, reduces the spray printing time shared by Null Spot, so as to improve the spray of continuous inkjet formulaThe spray printing speed of ink recorder, and the requirement to ink jet numbering machine hardware is not lifted.
Embodiment two
The embodiment of the present invention two provides a kind of spray printing speed lifting device, applied to continuous inkjet formula ink jet numbering machine.Referring toThe structural representation of spray printing speed lifting device shown in Fig. 4, the spray printing speed lifting device includes lattice information generation module410th, point determining module 420, new lattice information generation module 430 and spray printing module 440 are deleted, wherein, the function of each module is such asUnder：
Lattice information generation module 410, the information for spray printing as needed generates lattice information.
Point determining module 420 is deleted, for determining need in Null Spot according to the layout of each column dot matrix in above-mentioned lattice informationThe point to be deleted.Above-mentioned Null Spot is to be not required to the point of spray printing in lattice information；
New lattice information generation module 430, for the point deletion deleted will to be needed to generate new lattice information；
Spray printing module 440, for carrying out spray printing according to new lattice information.
Above-mentioned deletion point determining module 420 is additionally operable to：When there is multiple Null Spots between two available points, by multiple nothingsPartial invalidity point in effect point is defined as the point for needing to delete；Available point be lattice information in need the point of spray printing.
Point determining module 420 is deleted to can be also used for：According to the layout of each column dot matrix in lattice information by the complete of Null SpotPortion is defined as the point for needing to delete；Said apparatus also includes：Protection point insertion module, for each column point in new lattice informationOne or more protection points are inserted between battle array any two available point；Protection point is the point not charged.
Point determining module 420 is deleted to be additionally operable to：Dot matrix is determined according to the translational speed and dominant frequency of spray printing product or shower nozzleThe row altitude range of information；The point for needing to delete in multiple Null Spots is determined according to row altitude range.
Said apparatus also includes：Protection point insertion module, for each column any two available point in new lattice informationBetween insert one or more protection points；Protection point is the point not charged.
The spray printing speed lifting device that the present embodiment is provided, breaks through original highly changeless spray printing pattern of row, passes throughEach column dot matrix layout is determined to need the point of deletion in Null Spot and is deleted in lattice information, is removed as far as possible in dot array dataNull Spot, realizes that row are highly automated variable, reduces the spray printing time shared by Null Spot, so as to improve the spray of continuous inkjet formulaThe spray printing speed of ink recorder, and the requirement to ink jet numbering machine hardware is not lifted.
The technique effect and preceding method embodiment phase of the device that the embodiment of the present invention is provided, its realization principle and generationTogether, to briefly describe, embodiment of the method part does not refer to part, refers to corresponding contents in preceding method embodiment.
Finally it should be noted that：Above example, is only the embodiment of the present invention, the skill to illustrate the present inventionArt scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although entering with reference to the foregoing embodiments to the present inventionGo detailed description, it should be understood by those skilled in the art that：Any one skilled in the art takes off in the present inventionIn the technical scope of dew, it can still modify to the technical scheme described in previous embodiment or can readily occur in changeChange, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make relevant artScheme essence depart from technical scheme of the embodiment of the present invention spirit and scope, should all cover protection scope of the present invention itIt is interior.Therefore, protection scope of the present invention should be defined by scope of the claims.