CN104723701A - Printing control method and device and printing equipment - Google Patents

Abstract

The invention provides a printing control method and device and printing equipment. The printing control method comprises the steps that time intervals, outputting single pulses, of a first coder and a second coder are obtained within the preset time length, wherein the first coder and the second coder output p pulses during a circle of rotation; the time interval delta t is obtained through calculation according to a first calculation formula; pulse signals are regularly sent to a sprayer part by serving the delta t as a circle to enable the sprayer part to perform printing under the excitation of the pulse signals. According to the printing control method and device and the printing equipment, the printing precision and quality can be effectively improved.

Description

Print control program, device and printing device

Technical field

The present invention relates to digital printing field, particularly relate to a kind of print control program, device and printing device.

Background technology

In digital printing technology, original data processing is become dot array data by host side by printing equipment, and this dot array data is processed into the data of applicable imaging, then controls image-forming block to imaging data direct imaging.Concrete, carry out in the process printed at the printing equipment of on-demand ink jet printing, under the control of print control unit, when print media (such as paper) arrives precalculated position, print control unit will send pulse to nozzle component, to make the piezo-electric crystal in nozzle component be extruded by ink according to the pulse received, thus spray vaporific ink droplet imaging to the surface of print media, print.

In existing Print Control scheme, single channel encoder is usually adopted to control the method printed, in this scenario, once the model of encoder is determined, then its quantity rotating a circle the pulse signal exported is fixed, and supposes that this quantity is p, that is, whenever encoder turns over angle time, then export a pulse signal.Concrete, encoder and pinch roller synchronous axial system, pinch roller and paper bowl close contact, and rotate under the friction of paper bowl drives.Like this, the turned arc length of paper bowl is arc length, the angle that pinch roller turns over and the angle that encoder turns over that pinch roller rotates.

But in actual print procedure, because pinch roller can cause wearing and tearing in Long-Time Service, pinch roller is not inherently desirable circle in other words, that is, when pinch roller turns over identical angle, its corresponding arc length turned over may be different.Like this, whenever encoder output pulse signal, the displacement interval of print media movement may be uneven, which results in the reduction of printing precision and print quality.

Summary of the invention

The invention provides a kind of print control program, device and printing device, for solving in existing Print Control scheme, because pinch roller specification is undesirable, the printing precision caused and problem of low quality.

First aspect of the present invention is to provide a kind of print control program, comprising:

Obtain in the duration t preset, the first encoder and the second encoder export the time interval Δ t of individual pulse ₁with Δ t ₂, wherein, described first encoder and described second encoder rotate a circle export pulse number be p;

According to the first computing formula, calculate and obtain time interval Δ t, described first computing formula is $\mathrm{\Δt}=\frac{\mathrm{\Δ}{t}_1+\mathrm{\Δ}{t}_2}{2};$

With Δ t for the cycle, timing sends pulse signal to nozzle component, prints under the excitation of described pulse signal to make described nozzle component;

Wherein, described first encoder and the first pinch roller synchronous axial system, described second encoder and the second pinch roller synchronous axial system;

Described first pinch roller is identical with described second pinch roller, and the central shaft of described first pinch roller and described second pinch roller overlaps, and described central shaft is parallel with paper bowl;

Described paper bowl clamps print media under the cooperation of described first pinch roller and described second pinch roller, and when described paper bowl rotates, its friction drives described first pinch roller and described second pinch roller to rotate;

When the central shaft of described first pinch roller is the maximum radius of described first pinch roller to the beeline on described paper bowl surface, the central shaft of described second pinch roller is the least radius of described second pinch roller to the beeline on described paper bowl surface.

Another aspect of the present invention is to provide a kind of print control unit, comprising:

Acquisition module, for obtaining in the duration t preset, the first encoder and the second encoder export the time interval Δ t of individual pulse ₁with Δ t ₂, wherein, described first encoder and described second encoder rotate a circle export pulse number be p;

Computing module, for according to the first computing formula, calculate and obtain time interval Δ t, described first computing formula is $\mathrm{\Δt}=\frac{\mathrm{\Δ}{t}_1+\mathrm{\Δ}{t}_2}{2};$

Processing module, for Δ t for the cycle, timing to nozzle component send pulse signal, print under the excitation of described pulse signal to make described nozzle component;

Wherein, described first encoder and the first pinch roller synchronous axial system, described second encoder and the second pinch roller synchronous axial system;

Described first pinch roller is identical with described second pinch roller, and the central shaft of described first pinch roller and described second pinch roller overlaps, and described central shaft is parallel with paper bowl;

Described paper bowl clamps print media under the cooperation of described first pinch roller and described second pinch roller, and when described paper bowl rotates, its friction drives described first pinch roller and described second pinch roller to rotate;

When the central shaft of described first pinch roller is the maximum radius of described first pinch roller to the beeline on described paper bowl surface, the central shaft of described second pinch roller is the least radius of described second pinch roller to the beeline on described paper bowl surface.

Another aspect of the present invention is to provide a kind of printing device, comprising: rotate a circle the first encoder and the second encoder, the first pinch roller and the second pinch roller, paper bowl, nozzle component and print control unit as above that export same number pulse;

Wherein, described print control unit is connected with described first encoder, described second encoder and described nozzle component; Described first encoder is connected and synchronous axial system with described first pinch roller, and described second encoder is connected and synchronous axial system with described second pinch roller; Described first pinch roller is identical with described second pinch roller, and the central shaft of described first pinch roller and described second pinch roller overlaps, and described central shaft is parallel with described paper bowl;

Described paper bowl, for clamping print media under the cooperation of described first pinch roller and described second pinch roller, and when described paper bowl rotates, its friction drives described first pinch roller and described second pinch roller to rotate;

Described nozzle component, prints under the excitation of pulse signal that sends at described print control unit;

Wherein, when the central shaft of described first pinch roller is the maximum radius of described first pinch roller to the beeline on described paper bowl surface, the central shaft of described second pinch roller is the least radius of described second pinch roller to the beeline on described paper bowl surface.

Print control program provided by the invention, device and printing device, by obtaining in the duration preset, first encoder and the second encoder export the time interval of individual pulse, calculate according to the first computing formula and obtain time interval Δ t, and with Δ t for the cycle, timing sends the technical scheme of pulse signal to nozzle component, effectively improves the precision printed and quality.

Accompanying drawing explanation

The schematic flow sheet of a kind of print control program that Fig. 1 provides for the embodiment of the present invention one;

The structural representation of a kind of print control unit that Fig. 2 provides for the embodiment of the present invention two;

The structural representation of a kind of printing device that Fig. 3 provides for the embodiment of the present invention three.

Detailed description of the invention

For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.

The schematic flow sheet of a kind of print control program that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, described method comprises:

101, obtain in the duration t preset, the first encoder and the second encoder export the time interval Δ t of individual pulse ₁with Δ t ₂.

Wherein, described first encoder and described second encoder rotate a circle export pulse number be p.Concrete, 101 can comprise:

Be captured in described duration t, the angle θ that described first encoder and described second encoder turn over ₁and θ ₂;

According to the second computing formula and the 3rd computing formula, calculate and obtain Δ t ₁with Δ t ₂, described second computing formula is $\mathrm{\Δ}{t}_1=\frac{2\mathrm{\πt}}{p{\mathrm{\θ}}_1},$ Described 3rd computing formula is $\mathrm{\Δ}{t}_2=\frac{2\mathrm{\πt}}{p{\mathrm{\θ}}_2}.$

Concrete further, described in be captured in described duration t, the angle that described first encoder and described second encoder turn over specifically can comprise:

Gather the angle θ that described paper bowl turns in described duration t;

According to the radius r of the described paper bowl obtained in advance, calculate the arc length l obtaining described paper bowl and turn in duration t, wherein, l=θ r;

According to the maximum radius r of described first pinch roller obtained in advance _max, least radius r _minand l, calculate and obtain θ ₁and θ ₂, wherein, ${\mathrm{\θ}}_1=\frac{1}{r_{\max }},{\mathrm{\θ}}_2=\frac{1}{r_{\min }}.$

Wherein, the radius of described paper bowl, the maximum radius of pinch roller and least radius can be measured by amesdial and obtain.It should be noted that, in the above-described embodiment, for calculating θ ₁and θ ₂maximum radius r _maxwith least radius r _minboth can be maximum radius and the least radius of the first pinch roller, also can be maximum radius and the least radius of the second pinch roller, the arc length that arc length l can turn in duration t for described paper bowl, the arc length that also can turn in duration t for described first pinch roller or the second pinch roller, the just wherein a kind of concrete embodiment provided in above-mentioned steps, it does not limit other embodiment.

102, according to the first computing formula, calculate and obtain time interval Δ t.

Wherein, described first computing formula is $\mathrm{\Δt}=\frac{\mathrm{\Δ}{t}_1+\mathrm{\Δ}{t}_2}{2}.$

103, with Δ t for the cycle, timing to nozzle component send pulse signal, print under the excitation of described pulse signal to make described nozzle component.

Wherein, described first encoder and the first pinch roller synchronous axial system, described second encoder and the second pinch roller synchronous axial system;

Described first pinch roller is identical with described second pinch roller, and the central shaft of described first pinch roller and described second pinch roller overlaps, and described central shaft is parallel with paper bowl;

Described paper bowl clamps print media under the cooperation of described first pinch roller and described second pinch roller, and when described paper bowl rotates, its friction drives described first pinch roller and described second pinch roller to rotate;

When the central shaft of described first pinch roller is the maximum radius of described first pinch roller to the beeline on described paper bowl surface, the central shaft of described second pinch roller is the least radius of described second pinch roller to the beeline on described paper bowl surface.

Concrete, in print procedure, need the image printing different resolution according to different demands, wherein, the lateral resolution of printed drawings picture is fixing, determined by the physical location of nozzle component itself, the longitudinal frame of printed drawings picture is that the pulse of spraying by every turn starting nozzle component determines, according to the difference printing image resolution ratio, to the pulse signal that nozzle component transmission frequency is different, start the piezo-electric crystal work of shower nozzle, eject ink droplet imaging.

Optionally, in the present embodiment, described first encoder and described second encoder can be all incremental encoder.Described incremental encoder converts displacement to the periodic signal of telecommunication, then this signal of telecommunication is transformed into count pulse, represents the size of displacement by the number of pulse.Incremental encoder directly utilizes photoelectricity transformation principle to export three prescription wave impulse A, B and Z phases, encoder often revolves and turns around, A and B phase all sends identical pulse number, but there is the phase difference of 90 degree between A phase and B phase, by comparing A phase in front or B phase front, to differentiate that the direction that encoder rotates rotates forward or reversion.Encoder often revolves and turns around, and Z phase only sends out a pulse a fixing position, can be used as reset or zero-bit uses mutually.

The print control program that the present embodiment provides, by obtaining in the duration preset, first encoder and the second encoder export the time interval of individual pulse, calculate according to the first computing formula and obtain Δ t, and with Δ t for the cycle, timing sends the technical scheme of pulse signal to nozzle component, effectively improves the precision printed and quality.

The structural representation of a kind of print control unit that Fig. 2 provides for the embodiment of the present invention two, as shown in Figure 2, described device comprises: acquisition module 21, computing module 22 and processing module 23; Wherein,

Acquisition module 21, for obtaining in the duration t preset, the first encoder and the second encoder export the time interval Δ t of individual pulse ₁with Δ t ₂, wherein, described first encoder and described second encoder rotate a circle export pulse number be p;

Computing module 22, for according to the first computing formula, calculate and obtain time interval Δ t, described first computing formula is $\mathrm{\Δt}=\frac{\mathrm{\Δ}{t}_1+\mathrm{\Δ}{t}_2}{2};$

Processing module 23, for Δ t for the cycle, timing to nozzle component send pulse signal, print under the excitation of described pulse signal to make described nozzle component.

Wherein, described first encoder and the first pinch roller synchronous axial system, described second encoder and the second pinch roller synchronous axial system; Described first pinch roller is identical with described second pinch roller, and the central shaft of described first pinch roller and described second pinch roller overlaps, and described central shaft is parallel with paper bowl; Described paper bowl clamps print media under the cooperation of described first pinch roller and described second pinch roller, and when described paper bowl rotates, its friction drives described first pinch roller and described second pinch roller to rotate; When the central shaft of described first pinch roller is the maximum radius of described first pinch roller to the beeline on described paper bowl surface, the central shaft of described second pinch roller is the least radius of described second pinch roller to the beeline on described paper bowl surface.

In the present embodiment, acquisition module 21 specifically can comprise: collecting unit and computing unit; Wherein,

Collecting unit, for being captured in described duration t, the angle θ that described first encoder and described second encoder turn over ₁and θ ₂;

Computing unit, for according to the second computing formula and the 3rd computing formula, calculates and obtains Δ t ₁with Δ t ₂, described second computing formula is $\mathrm{\Δ}{t}_1=\frac{2\mathrm{\πt}}{p{\mathrm{\θ}}_1},$ , described 3rd computing formula is $\mathrm{\Δ}{t}_2=\frac{2\mathrm{\πt}}{p{\mathrm{\θ}}_2}.$

Concrete further, in the above-described embodiment, described collecting unit specifically can comprise:

Obtain subelement, for gathering the angle θ that described paper bowl turns in described duration t;

Computation subunit, for the radius r according to the described paper bowl obtained in advance, calculates the arc length l obtaining described paper bowl and turn in duration t, wherein, and l=θ r;

Described computation subunit, also for the maximum radius r according to described first pinch roller obtained in advance _max, least radius r _minand l, calculate and obtain θ ₁and θ ₂, wherein, ${\mathrm{\θ}}_1=\frac{1}{r_{\max }},{\mathrm{\θ}}_2=\frac{1}{r_{\min }}.$

Wherein, the maximum radius of described pinch roller and least radius can be measured by amesdial and obtain.Optionally, described first encoder and described second encoder can be all incremental encoder.

The print control unit that the present embodiment provides, by obtaining in the duration preset, first encoder and the second encoder export the time interval of individual pulse, calculate according to the first computing formula and obtain Δ t, and with Δ t for the cycle, timing sends the technical scheme of pulse signal to nozzle component, effectively improves the precision printed and quality.

The structural representation of a kind of printing device that Fig. 3 provides for the embodiment of the present invention three, as shown in Figure 3, described printing device comprises:

Rotate a circle the first encoder 31 and the second encoder 32, first pinch roller 33 and the second pinch roller 34, paper bowl 35, nozzle component (not shown) and the print control unit (not shown) as described in embodiment two that export same number pulse;

Wherein, described print control unit is connected with the first encoder 31, second encoder 32 and described nozzle component; First encoder 31 is connected and synchronous axial system with the first pinch roller 33, and the second encoder 32 is connected and synchronous axial system with the second pinch roller 34; First pinch roller 33 is identical with the second pinch roller 34, and the central shaft of the first pinch roller 33 and the second pinch roller 34 overlaps, and described central shaft is parallel with paper bowl 35;

Paper bowl 35, for clamping print media under the cooperation of the first pinch roller 33 and the second pinch roller 34, and when paper bowl 35 rotates, its friction drive first pinch roller 33 and the second pinch roller 34 rotate;

Described nozzle component, prints under the excitation of pulse signal that sends at described print control unit;

Wherein, when the central shaft of the first pinch roller 33 is the maximum radius of the first pinch roller 33 to the beeline on paper bowl 35 surface, the central shaft of the second pinch roller 34 is the least radius of the second pinch roller 34 to the beeline on paper bowl 35 surface.

Optionally, the first encoder 31 and the second encoder 32 can be all incremental encoder.Concrete, the first encoder 31 can be connected with the first pinch roller 33 by the first shaft coupling 36; Second encoder 32 can be connected with the second pinch roller 34 by the second shaft coupling 37.Concrete, as shown in the figure, in actual applications, encoder can be fixed on fixed axis.Concrete, the schematic diagram of the just each structure member provided in figure, in figure, the size shape etc. of each structure does not necessarily represent true form and the size of this structure.

The printing device that the present embodiment provides, obtain in the duration preset by print control unit, first encoder and the second encoder export the time interval of individual pulse, calculate according to the first computing formula and obtain Δ t, and with Δ t for the cycle, timing sends the technical scheme of pulse signal to nozzle component, effectively improves the precision printed and quality.

Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the device of foregoing description, with reference to the corresponding process in preceding method embodiment, can not repeat them here.

One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that programmed instruction is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.

Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (10)

1. a print control program, is characterized in that, comprising:

Obtain in the duration t preset, the first encoder and the second encoder export the time interval Δ t of individual pulse ₁with Δ t ₂, wherein, described first encoder and described second encoder rotate a circle export pulse number be p;

According to the first computing formula, calculate and obtain time interval Δ t, described first computing formula is $\mathrm{\Δt}=\frac{\mathrm{\Δ}{t}_1+\mathrm{\Δ}{t}_2}{2};$

With Δ t for the cycle, timing sends pulse signal to nozzle component, prints under the excitation of described pulse signal to make described nozzle component;

Wherein, described first encoder and the first pinch roller synchronous axial system, described second encoder and the second pinch roller synchronous axial system;

Described first pinch roller is identical with described second pinch roller, and the central shaft of described first pinch roller and described second pinch roller overlaps, and described central shaft is parallel with paper bowl;

Described paper bowl clamps print media under the cooperation of described first pinch roller and described second pinch roller, and when described paper bowl rotates, its friction drives described first pinch roller and described second pinch roller to rotate;

When the central shaft of described first pinch roller is the maximum radius of described first pinch roller to the beeline on described paper bowl surface, the central shaft of described second pinch roller is the least radius of described second pinch roller to the beeline on described paper bowl surface.

2. method according to claim 1, is characterized in that, described acquisition is in the duration t preset, and the first encoder and the second encoder export the time interval of individual pulse, specifically comprise:

Be captured in described duration t, the angle θ that described first encoder and described second encoder turn over ₁and θ ₂;

According to the second computing formula and the 3rd computing formula, calculate and obtain Δ t ₁with Δ t ₂, described second computing formula is $\mathrm{\Δ}{t}_1=\frac{2\mathrm{\πt}}{p{\mathrm{\θ}}_1},$ Described 3rd computing formula is $\mathrm{\Δ}{t}_2=\frac{2\mathrm{\πt}}{p{\mathrm{\θ}}_2}.$

3. method according to claim 2, is characterized in that, described in be captured in described duration t, the angle that described first encoder and described second encoder turn over, specifically comprises:

Gather the angle θ that described paper bowl turns in described duration t;

According to the radius r of the described paper bowl obtained in advance, calculate the arc length l obtaining described paper bowl and turn in duration t, wherein, l=θ r;

According to the maximum radius r of described first pinch roller obtained in advance _max, least radius r _minand l, calculate and obtain θ ₁and θ ₂, wherein, ${\mathrm{\θ}}_1=\frac{1}{r_{\max }},{\mathrm{\θ}}_2=\frac{1}{r_{\min }}.$

4. the method according to any one of claim 1-3, is characterized in that, described first encoder and described second encoder are incremental encoder.

5. a print control unit, is characterized in that, comprising:

Acquisition module, for obtaining in the duration t preset, the first encoder and the second encoder export the time interval Δ t of individual pulse ₁with Δ t ₂, wherein, described first encoder and described second encoder rotate a circle export pulse number be p;

Computing module, for according to the first computing formula, calculate and obtain time interval Δ t, described first computing formula is $\mathrm{\Δt}=\frac{\mathrm{\Δ}{t}_1+\mathrm{\Δ}{t}_2}{2};$

Processing module, for Δ t for the cycle, timing to nozzle component send pulse signal, print under the excitation of described pulse signal to make described nozzle component;

Wherein, described first encoder and the first pinch roller synchronous axial system, described second encoder and the second pinch roller synchronous axial system;

Described first pinch roller is identical with described second pinch roller, and the central shaft of described first pinch roller and described second pinch roller overlaps, and described central shaft is parallel with paper bowl;

Described paper bowl clamps print media under the cooperation of described first pinch roller and described second pinch roller, and when described paper bowl rotates, its friction drives described first pinch roller and described second pinch roller to rotate;

When the central shaft of described first pinch roller is the maximum radius of described first pinch roller to the beeline on described paper bowl surface, the central shaft of described second pinch roller is the least radius of described second pinch roller to the beeline on described paper bowl surface.

6. device according to claim 5, is characterized in that, described acquisition module comprises:

Collecting unit, for being captured in described duration t, the angle θ that described first encoder and described second encoder turn over ₁and θ ₂;

Computing unit, for according to the second computing formula and the 3rd computing formula, calculates and obtains Δ t ₁with Δ t ₂, described second computing formula is $\mathrm{\Δ}{t}_1=\frac{2\mathrm{\πt}}{p{\mathrm{\θ}}_1},$ Described 3rd computing formula is $\mathrm{\Δ}{t}_2=\frac{2\mathrm{\πt}}{p{\mathrm{\θ}}_2}.$

7. device according to claim 6, is characterized in that, described collecting unit comprises:

Obtain subelement, for gathering the angle θ that described paper bowl turns in described duration t;

Computation subunit, for the radius r according to the described paper bowl obtained in advance, calculates the arc length l obtaining described paper bowl and turn in duration t, wherein, and l=θ r;

Described computation subunit, also for the maximum radius r according to described first pinch roller obtained in advance _max, least radius r _minand l, calculate and obtain θ ₁and θ ₂, wherein, ${\mathrm{\θ}}_1=\frac{1}{r_{\max }},{\mathrm{\θ}}_2=\frac{1}{r_{\min }}.$

8. the device according to any one of claim 5-7, is characterized in that, described first encoder and described second encoder are incremental encoder.

9. a printing device, is characterized in that, comprising: rotate a circle the first encoder and the second encoder, the first pinch roller and the second pinch roller, paper bowl, nozzle component and the print control unit according to any one of claim 5-8 that export same number pulse;

Wherein, described print control unit is connected with described first encoder, described second encoder and described nozzle component; Described first encoder is connected and synchronous axial system with described first pinch roller, and described second encoder is connected and synchronous axial system with described second pinch roller; Described first pinch roller is identical with described second pinch roller, and the central shaft of described first pinch roller and described second pinch roller overlaps, and described central shaft is parallel with described paper bowl;

Described paper bowl, for clamping print media under the cooperation of described first pinch roller and described second pinch roller, and when described paper bowl rotates, its friction drives described first pinch roller and described second pinch roller to rotate;

Described nozzle component, prints under the excitation of pulse signal that sends at described print control unit;

Wherein, when the central shaft of described first pinch roller is the maximum radius of described first pinch roller to the beeline on described paper bowl surface, the central shaft of described second pinch roller is the least radius of described second pinch roller to the beeline on described paper bowl surface.

10. printing device according to claim 9, is characterized in that, described first encoder is connected with described first pinch roller by the first shaft coupling; Described second encoder is connected with described second pinch roller by the second shaft coupling.