CN104924761A - CIJ ink-jet printing machine speed control method - Google Patents
CIJ ink-jet printing machine speed control method Download PDFInfo
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- CN104924761A CN104924761A CN201510310847.4A CN201510310847A CN104924761A CN 104924761 A CN104924761 A CN 104924761A CN 201510310847 A CN201510310847 A CN 201510310847A CN 104924761 A CN104924761 A CN 104924761A
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Abstract
The invention discloses a CIJ ink-jet printing machine speed control method. The method comprises that a printing speed value is inputted into an upper computer, a speed conversion module converts the printing speed value to a total amount of ink droplets needed for printing a column of a dot matrix, an integration module obtains a first non-printing ink droplet numerical value which is needed to be inserted between two printing ink droplets in the same column of the dot matrix according to the total amount of the ink droplets, a complementation module obtains a second non-printing ink droplet numerical value which is needed to be inserted between the two columns of the dot matrixes according to the total amount of ink droplets, a determination device determines whether the non-printing ink droplet is needed to be inserted between the two printing ink droplets and the two columns of the dot matrixes according to the first non-printing ink droplet numerical value and the second non-printing ink droplet value, an ink-jet encoding system transmits an ink droplet encoding signal to a charging electrode according to the determination result of the determination device, and the charging electrode charges the corresponding printing ink droplet according to the ink droplet encoding signal. The IG ink-jet printing machine speed control method improves the printing quality through automatically adjusting the utilization rate of the ink droplets and automatically distributing the interval positions of the ink droplets.
Description
Technical field
The present invention relates to industrial code-spraying machine technology field, particularly a kind of CIJ ink jet numbering machine print speed control method.
Background technology
Ink jet numbering machine is that one passes through software control, use cordless at the equipment of the enterprising line identifier of product, primarily of ink-jet coded system and ink System's composition, wherein, electric deflection formula continous inkjet ink jet numbering machine utilizes the deflection in the electric field of charged ink dot to realize the reduction of character, usually referred to as CIJ ink jet numbering machine.
The operation principle of CIJ ink jet numbering machine is: in ink system, ink is under the pressure effect of compression pump, ink ejects from nozzle, ink is through nozzle, effect by piezo-electric crystal fragments into a string continuous print, equal and the ink droplet that size is identical of spacing also forms ink droplet stream, when the ink droplet ejected continues under flowing to move across charging pole, specific ink droplet (the ink droplet corresponding with print point, also be printed dot) filled with specific carried charge, in charging extremely, ink droplet is separated from the line of ink marker, due to charging extremely having added certain voltage, when specific ink droplet was brought and the directly proportional negative electrical charge of charging pole institute making alive from the moment that the conduction line of ink marker is separated, by changing the voltage swing of charging pole, can be specific ink droplet and fill predetermined negative electrical charge with, ink jetting pressure continue under, ink droplet stream continues to move downward, pass through with in the middle of the high-voltage deflection plate of generating positive and negative voltage respectively from two, charged ink droplet can deflect through high-voltage deflection plate, degree of deflection depends on that how much charged institute is, uncharged ink droplet does not deflect, fly downwards always, flow into recovery tube, final getting back in ink box through recovery channel recycles, charged and ink droplet that is deflection is fallen with certain speed and angle the object of process before vertical shower nozzle, form graph text information dot matrix (ink droplet dot matrix), the graph text information editted before reduction.In said process, ink jet pressure, choose specific ink droplet, to the processes such as specific ink droplet charging, charge capacity by ink-jet coded system setting and control.
Based on above-mentioned principle, in CIJ ink jet numbering machine, the utilization rate (i.e. ratio shared by specific ink dot) of ink dot determines the print speed of ink jet numbering machine, the fastest print speed is reached when all ink dots being all used for be this CIJ coding function when printing graph-text content, but, what CIJ ink jet numbering machine utilized is that interaction force between electric charge realizes deflection, generally for and ensure that printing effect can not all ink droplets all for charging, but adopt the mode leaving ignore at two charged droplets points to reduce influencing each other between two charged droplets, to ensure printing effect more clearly,
The print speed control method adopted in the ink-jet coded system of existing CIJ ink jet numbering machine is mainly: the artificial print speed according to actual requirement set (input) ink droplet utilization rate in the program of host computer ink-jet coded system before this, this ink droplet utilization rate specifies the percentage for printed dot, then ink-jet coded system sends the ink-jet coded electrical signal with ink droplet utilization rate information to charging pole, and charging pole is chosen specific ink droplet according to this signal of telecommunication and charges.Visible, in traditional print speed control method, the arrangement selection rule of printed dot and non-print ink droplet is fixing, its print speed is caused also to be fixing, more suitably ink droplet utilization rate can not be adjusted to according to the graph text information of reality, it is not be set in a best ink dot utilization rate, but in general the lower print quality of ink droplet utilization rate is more low better, therefore, this mode can not be best distribution printed dot between interval, preferentially cannot ensure there are enough non-print ink droplets between two charged droplets, thus cause printing effect to decline.
In view of this, the present inventor furthers investigate CIJ ink jet numbering machine, works out a kind of CIJ ink jet numbering machine print speed control method, and by automatically adjusting ink droplet utilization rate and automatic mode of distributing ink droplet interval location, improve print quality, this case produces thus.
Summary of the invention
The object of the present invention is to provide a kind of CIJ ink jet numbering machine print speed control method, automatically can adjust ink droplet utilization rate and automatically distribute ink droplet interval location, improving print quality.
To achieve these goals, the solution that the present invention adopts is:
CIJ ink jet numbering machine print speed control method, the steps include:
Step one: in host computer input print speed value, print speed value is converted to the ink droplet total value sprayed required for printing one row dot matrix by Negotiation speed modular converter;
Step 2: ask mould preparation block to draw in same row dot matrix the first non-print ink droplet numerical value needing between two printed dot to insert according to ink droplet total value, complementation module draws the second non-print ink droplet numerical value needing between two row dot matrix to insert according to ink droplet total value;
Step 3: to be judged between two printed dot according to the first non-print ink droplet numerical value and the second non-print ink droplet numerical value by arbiter and between two row dot matrix the need of the non-print ink droplet of insertion, ink-jet coded system sends ink droplet code signal according to the judged result of arbiter to charging pole;
Step 4: charge to corresponding printed dot according to ink droplet code signal in charging pole.
In described step 2, the computing formula of the first non-print ink droplet numerical value and the first non-print ink droplet numerical value is:
n=（D1-D2）/（ X-1）；
First non-print ink droplet numerical value of N 1 is the integer part of n, and the second non-print ink droplet numerical value of N 2 is the remainder of (D1-D2)/(X-1);
Wherein, the ink droplet total value that D1 sprays for printing one row dot matrix, D2 is the printed dot total value of a row dot matrix, and D1-D2 is the non-print ink droplet total value of a row dot matrix, and X is character pattern height, and X-1 is the number in non-print interval.
Further, the deterministic process of described step 3 is:
When N1 equals 0, between two printed dot of each row dot matrix, do not insert not printed dot;
When N1 is not equal to 0, between two printed dot of each row dot matrix, insert N1 not printed dot;
When N2 equals 0, between last printed dot of previous column dot matrix and first printed dot of a rear row dot matrix, do not insert non-print ink droplet;
When N2 is not equal to 0, between last printed dot of previous column dot matrix and first printed dot of a rear row dot matrix, insert N2 non-print ink droplet.
Further, the deterministic process of described step 3 also comprises:
When ink droplet utilization rate is more than or equal to 20%, between two printed dot of each row dot matrix, preferentially insert N1 non-print ink droplet, between last printed dot and first printed dot of a rear row dot matrix of previous column dot matrix, then insert N2 non-print ink droplet;
When ink droplet utilization rate is less than 20%, insert 10 non-print ink droplets at most between two printed dot of each row dot matrix, remaining D1-D2-10 non-print ink droplet inserts between two arrays.
After adopting such scheme, beneficial effect of the present invention is: the present invention is according on the basis of the print speed of client's actual requirement, ink droplet total value in each character pattern is drawn by the transformational relation of print speed and matrix of printed dots, and draw the non-print ink droplet numerical value needing between two printed dot to need between the non-print ink droplet numerical value of insertion and two row dot matrix to insert, preferentially between two charged ink dots of same column, insert non-print ink droplet, thus the accurate control realized printed dots interval, then the non-print ink droplet numerical value inserted between two row dot matrix, thus realize automatically being adjusted to best print speed according to actual figure Chinese character (print speed of requirement), improve and print definition, keep the stable of print speed.
In the present invention, the graph text information related to and print speed are closed and are: after setting initial print speed value, input needs the graph text information printed, ink jet numbering machine just can draw the value of the peak of each character pattern according to the print speed of setting, namely show that the often row dot matrix of each character needs ink dot total value and the every row dot lattice printing ink droplet total value of ejection, the non-print number of ink droplets controlling to insert between two row character patterns just can control the print speed of reality;
Traditional ink jet numbering machine can only fix the ratio of a printed dot and non-print ink droplet according to the ink droplet utilization rate of initial setting, all non-print number of ink droplets cannot be adjusted between printed dot and between two row dot matrix, comparatively speaking, crucial part of the present invention is just: the ratio automatically adjusting printed dot and non-print ink droplet according to the print speed of actual requirement, and between two printed dot of same column and insert the non-print ink droplet of optimum number value between the printed dot of two row dot matrix, preferentially by non-print ink droplet, the print speed be inserted into again according to actual requirement between charged droplets is inserting non-print ink droplet between the column and the column, ink droplet is distributed rationalize, print speed keeps stable, obtain the beneficial effect that print quality promotes.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Fig. 2 is the structure chart of the ink droplet dot matrix of character of the present invention;
Fig. 3 is the chart of ink droplet electrified voltage of the present invention;
Fig. 4 be each row dot matrix of the present invention two printed dot between ink droplet electrified voltage chart when inserting N1 non-print ink droplet;
Fig. 5 inserts the structure chart that N2 non-print ink droplet is ink droplet dot matrix between last printed dot of previous column dot matrix of the present invention and first printed dot of a rear row dot matrix;
Wherein in Fig. 2-5, stain represents printed dot, and white point represents non-print ink droplet.
Detailed description of the invention
The CIJ ink jet numbering machine print speed control method that the present invention discloses, the steps include:
Step one: in host computer input print speed value, print speed value is converted to the ink droplet total value sprayed required for printing one row dot matrix by Negotiation speed modular converter;
Step 2: ask mould preparation block to draw in same row dot matrix the first non-print ink droplet numerical value needing between two printed dot to insert according to ink droplet total value, complementation module draws the second non-print ink droplet numerical value needing between two row dot matrix to insert according to ink droplet total value;
The computing formula of the first non-print ink droplet numerical value and the first non-print ink droplet numerical value is:
n=（D1-D2）/（ X-1）；
First non-print ink droplet numerical value of N 1 is the integer part of n, and the second non-print ink droplet numerical value of N 2 is the remainder of (D1-D2)/(X-1);
Wherein, the ink droplet total value that D1 sprays for printing one row dot matrix, D2 is the printed dot total value of a row dot matrix, and D1-D2 is the non-print ink droplet total value of a row dot matrix, and X is character pattern height, and X-1 is the number in non-print interval.
Step 3: to be judged between two printed dot according to the first non-print ink droplet numerical value and the second non-print ink droplet numerical value by arbiter and between two row dot matrix the need of the non-print ink droplet of insertion, ink-jet coded system sends ink droplet code signal according to the judged result of arbiter to charging pole;
The deterministic process of step 3 is:
When N1 equals 0, between two printed dot of each row dot matrix, do not insert not printed dot;
When N1 is not equal to 0, between two printed dot of each row dot matrix, insert N1 not printed dot;
When N2 equals 0, between last printed dot of previous column dot matrix and first printed dot of a rear row dot matrix, do not insert non-print ink droplet;
When N2 is not equal to 0, between last printed dot of previous column dot matrix and first printed dot of a rear row dot matrix, insert N2 non-print ink droplet.
The deterministic process of described step 3 also comprises:
When ink droplet utilization rate is more than or equal to 20%, between two printed dot of each row dot matrix, preferentially insert N1 non-print ink droplet, between last printed dot and first printed dot of a rear row dot matrix of previous column dot matrix, then insert N2 non-print ink droplet;
When ink droplet utilization rate is less than 20%, insert 10 non-print ink droplets at most between two printed dot of each row dot matrix, remaining D1-D2-10 non-print ink droplet inserts between two arrays.
Step 4: charge to corresponding printed dot according to ink droplet code signal in charging pole.
In contrast, the present invention is due to the more substantial calculating process of needs, preferably calculating process is passed through FPGA(field programmable gate array) realize, FPGA has broken order execution pattern, more Processing tasks is completed within each cycle, surmounted the operational capability of digital signal processor, express delivery control accuracy is higher
Rate conversion module of the present invention, mould preparation block, complementation module and arbiter is asked all to belong to the part of CIJ ink jet numbering machine coded system plug-in, it is by the support of hardware (comprising FPGA), quantitative value involved in the present invention is processed, to realize the formation of ink droplet coded electrical signal, the part of the charging of the present invention very ink system of CIJ ink jet numbering machine, it mainly charges to corresponding printed dot according to ink droplet coded electrical signal.
The present invention is according on the basis of the print speed of client's actual requirement, ink droplet total value in each character pattern is drawn by the transformational relation of print speed and matrix of printed dots, and draw the non-print ink droplet numerical value needing between two printed dot to need between the non-print ink droplet numerical value of insertion and two row dot matrix to insert, realize the accurate control to printed dots interval, can automatically be adjusted to best print speed according to actual figure Chinese character (print speed of requirement), improve printing definition, keep the stable of print speed.
These are only specific embodiments of the invention, the restriction not to protection scope of the present invention.All equivalent variations done according to the mentality of designing of this case, all fall into the protection domain of this case.
Claims (4)
1.CIJ ink jet numbering machine print speed control method, it is characterized in that, step is:
Step one: in host computer input print speed value, print speed value is converted to the ink droplet total value sprayed required for printing one row dot matrix by Negotiation speed modular converter;
Step 2: ask mould preparation block to draw in same row dot matrix the first non-print ink droplet numerical value needing between two printed dot to insert according to ink droplet total value, complementation module draws the second non-print ink droplet numerical value needing between two row dot matrix to insert according to ink droplet total value;
Step 3: to be judged between two printed dot according to the first non-print ink droplet numerical value and the second non-print ink droplet numerical value by arbiter and between two row dot matrix the need of the non-print ink droplet of insertion, ink-jet coded system sends ink droplet code signal according to the judged result of arbiter to charging pole;
Step 4: charge to corresponding printed dot according to ink droplet code signal in charging pole.
2. CIJ ink jet numbering machine print speed control method as claimed in claim 1, is characterized in that: in described step 2, the computing formula of the first non-print ink droplet numerical value and the first non-print ink droplet numerical value is:
n=（D1-D2）/（ X-1）；
First non-print ink droplet numerical value of N 1 is the integer part of n, and the second non-print ink droplet numerical value of N 2 is the remainder of (D1-D2)/(X-1);
Wherein, the ink droplet total value that D1 sprays for printing one row dot matrix, D2 is the printed dot total value of a row dot matrix, and D1-D2 is the non-print ink droplet total value of a row dot matrix, and X is character pattern height, and X-1 is the number in non-print interval.
3. CIJ ink jet numbering machine print speed control method as claimed in claim 2, is characterized in that: the deterministic process of described step 3 is:
When N1 equals 0, between two printed dot of each row dot matrix, do not insert not printed dot;
When N1 is not equal to 0, between two printed dot of each row dot matrix, insert N1 not printed dot;
When N2 equals 0, between last printed dot of previous column dot matrix and first printed dot of a rear row dot matrix, do not insert non-print ink droplet;
When N2 is not equal to 0, between last printed dot of previous column dot matrix and first printed dot of a rear row dot matrix, insert N2 non-print ink droplet.
4. CIJ ink jet numbering machine print speed control method as claimed in claim 3, is characterized in that: the deterministic process of described step 3 also comprises:
When ink droplet utilization rate is more than or equal to 20%, between two printed dot of each row dot matrix, preferentially insert N1 non-print ink droplet, between last printed dot and first printed dot of a rear row dot matrix of previous column dot matrix, then insert N2 non-print ink droplet;
When ink droplet utilization rate is less than 20%, insert 10 non-print ink droplets at most between two printed dot of each row dot matrix, remaining D1-D2-10 non-print ink droplet inserts between two arrays.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107009740A (en) * | 2017-03-30 | 2017-08-04 | 厦门英杰华机电科技有限公司 | CIJ ink jet numbering machine variable speed printing control algolithms |
| CN107160873A (en) * | 2017-05-26 | 2017-09-15 | 北京兴通盛达科技有限公司 | Spray printing speed lifting method and device |
| CN110614849A (en) * | 2019-09-16 | 2019-12-27 | 武汉先同科技有限公司 | Improved ink droplet charging-based small character spray head jet printing method |
| CN114379228A (en) * | 2020-10-16 | 2022-04-22 | 森大（深圳）技术有限公司 | Cylindrical surface printing control method, device, printer and storage medium |
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| CN107160873B (en) * | 2017-05-26 | 2019-05-31 | 北京兴通盛达科技有限公司 | Spray printing speed lifting method and device |
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| CN114379228B (en) * | 2020-10-16 | 2023-02-21 | 森大（深圳）技术有限公司 | Cylindrical surface printing control method, device, printer and storage medium |
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