CN111427520B - Jet printing method for high-speed jet printing of piezoelectric spray head - Google Patents
Jet printing method for high-speed jet printing of piezoelectric spray head Download PDFInfo
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- CN111427520B CN111427520B CN202010122729.1A CN202010122729A CN111427520B CN 111427520 B CN111427520 B CN 111427520B CN 202010122729 A CN202010122729 A CN 202010122729A CN 111427520 B CN111427520 B CN 111427520B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
- G06F3/1203—Improving or facilitating administration, e.g. print management
- G06F3/1208—Improving or facilitating administration, e.g. print management resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1237—Print job management
- G06F3/1253—Configuration of print job parameters, e.g. using UI at the client
Abstract
The invention discloses a jet printing method for high-speed jet printing of a piezoelectric nozzle, which specifically comprises the following steps: s1, generating jet printing data 1bit according to the actual requirement of jet printing DPI, S2, converting the 1bit data into 2bit data according to an ndpi image by a data conversion module, S3, driving a nozzle to work by a waveform driving module according to the 2bit data through driving the waveform, and S4, driving a nozzle to jet print according to the converted data and the waveform by a jet printing control module according to the jet printing frequency of n/2DPI of the data. According to the high-speed jet printing method of the piezoelectric jet head, jet printing data with low resolution is converted into 2bit data through 1bit data, jet printing is carried out on a control board card, the jet printing speed is improved through the jet printing frequency with low resolution, the jet printing effect is high in resolution through the driving capability of the control board card, the jet printing speed with low resolution frequency and the jet printing blackness with high resolution are achieved, jet printing efficiency can be improved, and jet printing blackness is increased.
Description
Technical Field
The invention relates to the technical field of spray printing, in particular to a spray printing method for high-speed spray printing of a piezoelectric spray head.
Background
The piezoelectric type spray head is composed of a nozzle part, a spray head main body part, an ink supply system and a driving circuit, wherein the nozzle part is an actuating mechanism for spraying ink and is the smallest part, the volume of the spray head main body is the largest in practical application, and the structure which can be seen by first eyes is also adopted, the ink supply part is composed of two parts of ink supply and transmission, the interface is an ink supply interface, the ink reaches the inside of the nozzle through the interface until the ink pipeline is shown, and the nozzle is ready to spray ink at any time, so that the stability and the maintainability of the long-term operation of the device are directly influenced by the scheme of the ink supply system in practical application due to the particularity of the ink supply form.
In piezoelectric jet printing, simply, by applying a voltage to a piezoelectric crystal to make the piezoelectric crystal deform slightly at a high speed, ink in a nozzle is extruded, when the piezoelectric crystal is acted by an external pulse voltage, the piezoelectric crystal deforms, so that the volume of an ink cavity of the nozzle is reduced, one drop of ink is ejected from the nozzle, then the piezoelectric crystal is restored to the original state, new ink enters the nozzle due to the action of surface tension, and the ideal jet printing width and resolution can be obtained by arranging a large number of nozzles side by side.
At present, a single mode and a gray mode are generally adopted in a piezoelectric spray nozzle spray printing mode, 1bit data of the single mode is used for outputting one ink point, if darkness is realized, processing time (width of waveform is increased) is required to be increased, the serial processing data is processed, processing efficiency is greatly reduced, 2bit data of a front gray mode is used for outputting a plurality of ink points, the ink points are sprayed at a position, the ink points are overlapped into one ink point, the waveform is required to be sequentially executed to finish one action, and one spray printing action and the other spray printing action have one time period, so that the frequency of spray printing is reduced.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a high-speed jet printing method of a piezoelectric nozzle, which solves the problem of lower jet printing frequency.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: a jet printing method of high-speed jet printing of a piezoelectric nozzle specifically comprises the following steps:
s1, arranging jet printing image dot matrix data according to a piezoelectric nozzle rule, generating M rows of data and N columns of data in the XY direction by using an image generating module, jet printing ndpi according to requirements on the basis of a nozzle Ydpi, generating an image in the X direction dpi, generating 1bit data, and simultaneously converting a jet printing mode 1bit into a 2bit driving mode;
s2, the image conversion module processes N/2dpi according to N-column data in the direction of the image Xdpi to generate new 2-bit jet printing image data, and meanwhile, the data conversion module converts 1-bit data into 2-bit data according to an ndpi image;
s3, the waveform driving module drives the nozzle to work through driving waveform according to the 2bit data, and the jet printing data of each row are subjected to two jet printing actions through adjustment of driving waveform;
and S4, driving the spray head to spray according to the converted data and waveforms by the spray printing control module according to the data by using the spray printing frequency of n/2 dpi.
Preferably, the conversion in the step S1 is generated according to different nozzles Ydpi, and the images generated by different nozzles are different;
wherein n is the lowest jet printing dpi of the spray head and is an integer.
Preferably, the image Ydpi data generated in the step S1 is unchanged and is determined according to the jet printing physical dpi;
wherein the columns N and N are integers and N are greater than 1.
Preferably, in the step S3, the jet printing speed is calculated according to the jet printing frequency, and the jet frequency p=v/(25.4 mm/D) = (v×d)/25.4 mm;
where P is the frequency, in Hz,
where V is the velocity in mm/s,
wherein D is jet printing Xdpi, and the unit dpi.
(III) beneficial effects
The invention provides a jet printing method for high-speed jet printing of a piezoelectric nozzle. Compared with the prior art, the method has the following beneficial effects: the high-speed jet printing method of the piezoelectric jet head specifically comprises the following steps: s1, arranging jet printing image dot matrix data according to a piezoelectric nozzle rule, generating M rows of data and N columns of data in the XY direction by using an image generating module, jet printing ndpi according to requirements on the basis of a nozzle Ydpi, generating an image in the X direction dpi, generating 1bit data, and simultaneously converting a jet printing mode 1bit into a 2bit driving mode; s2, the image conversion module processes N/2dpi according to N-column data in the direction of the image Xdpi to generate new 2-bit jet printing image data, and meanwhile, the data conversion module converts 1-bit data into 2-bit data according to an ndpi image; s3, the waveform driving module drives the nozzle to work through driving waveform according to the 2bit data, and the jet printing data of each row are subjected to two jet printing actions through adjustment of driving waveform; s4, the spray printing control module drives the spray head to spray print according to the converted data and waveforms and the spray printing frequency of n/2dpi of the data, the spray printing data with low resolution is converted into 2bit data through 1bit data, the spray printing is executed for the control board card, the spray printing speed is improved by the spray printing frequency with low resolution, the spray printing effect with high resolution is realized by the driving capability of the control board card, the spray printing speed with low resolution frequency and the jetness of the spray printing with high resolution are realized, the spray printing efficiency is improved, and the spray printing jetness is increased.
Drawings
FIG. 1 is a flow diagram of the present invention;
FIG. 2 is a block diagram of a system according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the embodiment of the invention provides a technical scheme: a jet printing method of high-speed jet printing of a piezoelectric nozzle specifically comprises the following steps:
s1, arranging jet printing image dot matrix data according to a piezoelectric nozzle rule, generating M rows of data and N columns of data in the XY direction by using an image generating module, jet printing ndpi according to requirements on the basis of a nozzle Ydpi, generating an image in the X direction dpi, generating 1bit data, and simultaneously converting a jet printing mode 1bit into a 2bit driving mode;
s2, the image conversion module processes N/2dpi according to N-column data in the direction of the image Xdpi to generate new 2-bit jet printing image data, and meanwhile, the data conversion module converts 1-bit data into 2-bit data according to an ndpi image;
s3, the waveform driving module drives the nozzle to work through driving waveform according to 2bit data, and the jet printing data of each column is subjected to two jet printing actions through adjustment of driving waveform, the highest jet printing frequency of the nozzle is limited, such as 50KHz at the highest, the driving control capacity of the control board card is far higher than the frequency of the nozzle, the higher the paper feeding direction jet printing resolution of the nozzle is, the jet printing speed is reduced;
and S4, driving the spray head to spray according to the converted data and waveforms by the spray printing control module according to the data by using the spray printing frequency of n/2 dpi.
In the invention, in the step S1, the conversion is generated according to different spray heads Ydpi, and the generated images of different spray heads are different;
wherein n is the lowest jet printing dpi of the spray head and is an integer.
In the invention, the image Ydpi data generated in the step S1 is unchanged and is determined according to the jet printing physical dpi;
wherein the columns N and N are integers and N are greater than 1.
In the invention, in the step S3, the jet printing speed is calculated according to the jet printing frequency, and the jet frequency P=V/(25.4 mm/D) = (V.times.D)/25.4 mm;
where P is the frequency, in Hz,
where V is the velocity in mm/s,
wherein D is a jet printing Xdpi, a unit dpi,
the higher the spray jet printing xdpi of the spray nozzle is, the faster the spray jet frequency of the spray nozzle is, and the highest spray frequency of the spray nozzle is easy to reach.
If the same effect (600 precision) is achieved, mode one needs to fire at 600dpi (25.4 mm/600) and mode two needs to fire at 300dpi (25.4/300) only.
600dpi effect, assuming that the image is 25.4mm, then in mode 600 shots are required in 25.4mm and in mode 2 only 300 shots are required in 25.4mm, assuming a speed of 1m/s equal to 1mm/ms, then the print fire rate for mode 1 is 23.8khz and the print frequency for mode 2 is 11.9HZ.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A jet printing method of high-speed jet printing of a piezoelectric nozzle is characterized in that: the method specifically comprises the following steps:
s1, arranging jet printing image dot matrix data according to a piezoelectricity spray head rule, generating M rows of data of N columns of data in an XY direction by an image generating module, jet printing ndpi according to requirements on the basis of a spray head Ydpi, generating 1bit data corresponding to the image in the X direction dpi, and simultaneously converting a jet printing mode 1bit into a 2bit driving mode, wherein M, N, N is an integer larger than 1;
s2, the image conversion module processes N/2dpi according to N-column data in the direction of the image Xdpi to generate new 2-bit jet printing image data, and meanwhile, the data conversion module converts 1-bit data into 2-bit data according to an ndpi image;
s3, the waveform driving module drives the nozzle to work through driving waveform according to the 2bit data, and the jet printing data of each row are subjected to two jet printing actions through adjustment of driving waveform;
and S4, driving the spray head to spray according to the converted data and waveforms by the spray printing control module according to the data by using the spray printing frequency of n/2 dpi.
2. The method for high-speed jet printing of the piezoelectric jet according to claim 1, wherein the method comprises the following steps: the conversion in the step S1 is generated according to different spray heads Ydpi, and the generated images of the different spray heads are different;
wherein n is the lowest jet printing dpi of the spray head and is an integer.
3. The method for high-speed jet printing of the piezoelectric jet according to claim 1, wherein the method comprises the following steps: the image Ydpi data generated in the step S1 is unchanged and is determined according to the jet printing physical dpi;
wherein the columns N and N are integers and N are greater than 1.
4. The method for high-speed jet printing of the piezoelectric jet according to claim 1, wherein the method comprises the following steps: in the step S3, the jet printing speed is calculated according to the jet printing frequency, and the jet frequency p=v/(25.4 mm/D) = (v×d)/25.4 mm;
where P is the frequency, in Hz,
where V is the velocity in mm/s,
wherein D is jet printing Xdpi, and the unit dpi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122729.1A CN111427520B (en) | 2020-02-26 | 2020-02-26 | Jet printing method for high-speed jet printing of piezoelectric spray head |
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| CN202010122729.1A CN111427520B (en) | 2020-02-26 | 2020-02-26 | Jet printing method for high-speed jet printing of piezoelectric spray head |
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| CN111427520A CN111427520A (en) | 2020-07-17 |
| CN111427520B true CN111427520B (en) | 2023-10-20 |
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| KR100709377B1 (en) * | 2005-09-06 | 2007-04-20 | 삼성전자주식회사 | Array type inkjet printer system and controlling method thereof |
| IL189300A (en) * | 2008-02-05 | 2012-07-31 | Lior Lifshitz | Method and system for simulating the operation of an image conversion device |
| JP7059071B2 (en) * | 2018-03-30 | 2022-04-25 | キヤノン株式会社 | Recording device, control method of recording device, and program |
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2020
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| US6367912B1 (en) * | 1997-02-24 | 2002-04-09 | Oki Data Corporation | Ink jet recording apparatus |
| CN1209391A (en) * | 1997-08-25 | 1999-03-03 | 莱克斯马克国际公司 | Printing method using ink-jet printer adopting improved level distinguishability |
| JP2003025614A (en) * | 2001-07-16 | 2003-01-29 | Fuji Xerox Co Ltd | Inkjet recorder and method of inkjet recording |
| CN1911661A (en) * | 2003-05-14 | 2007-02-14 | 精工爱普生株式会社 | Liquid droplet discharging method, and liquid droplet discharging apparatus and liquid for manufacturing substrate |
| CN1935512A (en) * | 2005-09-19 | 2007-03-28 | 安华高科技成像Ip(新加坡)私人有限公司 | Enabling increased print speed by eliminating nozzle firing sequencing |
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| CN111427520A (en) | 2020-07-17 |
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