CN115476588B - Method, device, equipment and storage medium for optimizing spray head driving waveform - Google Patents
Method, device, equipment and storage medium for optimizing spray head driving waveform Download PDFInfo
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- CN115476588B CN115476588B CN202110604431.9A CN202110604431A CN115476588B CN 115476588 B CN115476588 B CN 115476588B CN 202110604431 A CN202110604431 A CN 202110604431A CN 115476588 B CN115476588 B CN 115476588B
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- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000007921 spray Substances 0.000 title claims abstract description 24
- 238000007639 printing Methods 0.000 claims abstract description 46
- 230000007704 transition Effects 0.000 claims abstract description 46
- 230000033001 locomotion Effects 0.000 claims description 39
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000005457 optimization Methods 0.000 claims description 7
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- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 12
- 238000004891 communication Methods 0.000 description 6
- 238000007641 inkjet printing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04588—Control methods or devices therefor, e.g. driver circuits, control circuits using a specific waveform
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04508—Control methods or devices therefor, e.g. driver circuits, control circuits aiming at correcting other parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04535—Control methods or devices therefor, e.g. driver circuits, control circuits involving calculation of drop size, weight or volume
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- Ink Jet (AREA)
Abstract
The invention belongs to the technical field of industrial printing, solves the technical problems that the ink jet is abnormal and the image printing effect is affected due to insufficient ink jet capability or short duration in the prior art, and provides a method, a device, equipment and a storage medium for optimizing a nozzle driving waveform. The method for optimizing the nozzle driving waveform comprises the steps of adjusting an initial driving waveform according to state information of ink drops ejected by the nozzle driven by the initial driving waveform to obtain a transition driving waveform, and optimizing the middle wave band of the transition driving waveform to obtain a target driving waveform. The invention also provides a device, equipment and a printing medium for executing the method. According to the invention, the driving waveform of the spray head is adjusted according to the actual state information of the ink drops, so that the target driving waveform capable of enabling the ink drops sprayed by the spray head to reach the preset position is obtained, and the effect of printing images is ensured.
Description
Technical Field
The present invention relates to the field of industrial printing technologies, and in particular, to a method, an apparatus, a device, and a storage medium for optimizing a driving waveform of a nozzle.
Background
The ink jet printing technology is that the printer performs ink jet printing on a printing medium to form images or characters by controlling the movement of a nozzle of the nozzle in the process of moving along with the nozzle.
In the prior art, when the nozzle performs ink jet printing according to a preset driving waveform, the nozzle can immediately enter an ink jet state after ink suction is completed, so that the problems of insufficient ink drop ejection or insufficient ejection energy or ink drop fault and the like are caused due to insufficient ink jet capability or short duration time.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a method, an apparatus, a device, and a storage medium for optimizing a driving waveform of a nozzle, so as to solve the technical problem in the prior art that the ink jet is abnormal due to insufficient ink jet capability or short duration, which affects the image printing effect.
The technical scheme adopted by the invention is as follows:
the invention provides an optimization method of a spray head driving waveform, which comprises the following steps:
S1: acquiring state information of ink drops obtained by driving a nozzle to jet ink by an initial driving waveform;
S2: adjusting the initial driving waveform according to the state information to obtain a transition driving waveform;
S3: optimizing the intermediate wave band in the transition driving waveform to obtain a target driving waveform;
Wherein the transition drive waveform includes a waveform that designates an intermediate band and/or increases the intermediate band as an energy adjustment band in the initial drive waveform.
Preferably, the S1 includes:
s11: acquiring a motion track of the ink drop;
s12: acquiring real-time position information of ink drops according to the motion trail;
S13: and obtaining the state information according to the position information and the ink drop volume corresponding to the position information.
Preferably, the S13 includes:
s131: according to the motion trail, obtaining the drop point position and the initial position of the ink drop;
s132: obtaining the position offset of the ink drop according to the drop position and the initial position;
S133: obtaining loss information of the ink drops according to the difference value of the ink drop volumes at the drop point positions and the ink drop volumes corresponding to the initial positions;
S134: and obtaining the state information according to the position offset, the loss information and the motion trail.
Preferably, the S2 includes;
s21: acquiring state information corresponding to the position of the drop point;
S22: and regulating the peak value of the energy regulating wave band of the initial driving waveform at least once according to the state information corresponding to the position of the ink drop at the drop point, so as to obtain a plurality of transition driving waveforms corresponding to the regulating times.
Preferably, when the moving distance corresponding to the actual drop point position of the ink droplet in the moving direction of the nozzle is smaller than the preset distance, the step S22 includes:
s221: taking the state information of the ink drops corresponding to the initial driving waveform as first state information;
s222: and adding the energy adjusting wave band to the initial driving waveform according to the first state information to obtain a first transition driving waveform.
Preferably, the S222 includes:
S2221: acquiring initial wave crest time and initial wave trough time of an initial driving waveform;
s2222: and setting the peak and the frequency of the energy regulating wave band according to the state information by combining the initial peak time and the initial trough time to obtain a first transition driving waveform.
Preferably, in said S3;
s31: acquiring all the transition driving waveforms;
s32: and performing linear fitting on each transition driving waveform to obtain the target driving waveform.
The invention also provides a printing device, which is characterized by comprising:
and a data acquisition module: the method comprises the steps of acquiring state information of ink drops obtained by driving a nozzle to jet ink by an initial driving waveform;
And a data processing module: the initial driving waveform is adjusted according to the state information to obtain a transition driving waveform;
and a data optimization module: the method comprises the steps of optimizing an intermediate wave band in the transition driving waveform to obtain a target driving waveform;
Wherein the transition drive waveform includes a waveform that designates an intermediate band and/or increases the intermediate band as an energy adjustment band in the initial drive waveform.
The present invention also provides a printing apparatus including: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of any of the above.
The invention also provides a storage medium having stored thereon computer program instructions which when executed by a processor implement a method as claimed in any preceding claim.
In summary, the beneficial effects of the invention are as follows:
According to the method, the device, the equipment and the storage medium for optimizing the driving waveform of the spray head, the driving waveform is adjusted for a plurality of times through the state information of the sprayed ink drops, and the adjusted driving waveform is optimized to obtain the target driving waveform which is actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the appointed printing position according to the preset track, and the effect of printing images is ensured.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described, and it is within the scope of the present invention to obtain other drawings according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for optimizing a driving waveform of a spray head according to an embodiment 1 of the present invention;
Fig. 1-1 is a schematic diagram of an initial print driving waveform in embodiment 1 of the present invention;
fig. 1-2 are schematic diagrams of a target print driving waveform in embodiment 1 of the present invention;
FIG. 2 is a schematic flow chart of the ink droplet state of the optimization method of the nozzle driving waveform in the embodiment 1 of the present invention;
FIG. 3 is a flow chart showing the real-time state of ink droplets in the method for optimizing the driving waveform of the nozzle in embodiment 1 of the present invention;
FIG. 4 is a schematic flow chart of waveform adjustment of the method for optimizing the driving waveform of the spray head in embodiment 1 of the present invention;
FIG. 5 is a schematic flow chart of a first transition driving waveform of the method for optimizing the driving waveform of the spray head according to the embodiment 1 of the present invention;
FIG. 6 is a schematic flow chart of the duration of the peaks and valleys of the driving waveform of the method for optimizing the driving waveform of the spray head according to the embodiment 1 of the present invention;
FIG. 7 is a schematic flow chart of the target driving waveform of the method for optimizing the driving waveform of the nozzle in embodiment 1 of the present invention;
fig. 8 is a block diagram showing the structure of a printing apparatus according to embodiment 2 of the present invention;
Fig. 9 is a schematic structural view of a printing apparatus in embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. 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. In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. 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. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. If not conflicting, the embodiments of the present application and the features of the embodiments may be combined with each other, which are all within the protection scope of the present application.
Example 1
Referring to fig. 1, fig. 1 provides a method for optimizing a driving waveform of a spray head according to embodiment 1 of the present invention, where the method includes:
S1: acquiring state information of ink drops obtained by driving a nozzle to jet ink by an initial driving waveform;
Specifically, the printer sets corresponding initial driving waveforms to the nozzles of the signals before leaving the factory, and when the printer is ready to print, the initial driving waveforms drive the nozzles to perform ink jet printing, and ink drops of the ink jet printing are monitored to obtain overall process information that the ink drops finally fall onto a printing medium, wherein the ink drop state information at least comprises one of the following: the movement trajectory of the ink drop and the ink drop volume size.
S2: adjusting the initial driving waveform according to the state information to obtain a transition driving waveform;
Specifically, according to the ink drop state information, determining the difference between the ink drop obtained under the driving of the initial driving waveform and the printing requirement, wherein the difference is the contrast difference between the energy state change of the ink drop driven by the initial driving waveform and the energy state change of the ink drop driven by the initial driving waveform, thereby determining the adjustment parameters of the initial driving waveform to obtain the transition driving waveform, and adjusting the initial driving waveform at least comprises one of the following steps: an intermediate band capable of adjusting the kinetic energy of the driving waveform is set in the initial driving waveform, and is herein denoted as an energy adjustment band, where the intermediate band may be an original band of the initial driving waveform or a newly added band, and is not specifically limited herein.
S3: optimizing the intermediate wave band in the transition driving waveform to obtain a target driving waveform;
Wherein the transition drive waveform includes a waveform that designates an intermediate band and/or increases the intermediate band as an energy adjustment band in the initial drive waveform.
Specifically, according to state information corresponding to an actual drop point of an ink drop, determining lost energy and an offset position in an air movement process of the ink drop, if the drop point position of the ink drop is in front of a preset position (the distance of the ink drop along the moving direction of a spray head is greater than the preset distance), an energy adjusting wave band is a wave band part selected in an initial driving waveform, which indicates that the kinetic energy of the ink drop when the ink drop exits a spray nozzle is too large, if the drop point position of the ink drop is behind the preset position, which indicates that the kinetic energy of the ink drop when the ink drop exits the spray nozzle is too small (the distance of the ink drop along the moving direction of the spray head is less than the preset distance), and the energy adjusting wave band is a wave band part increased in the initial driving waveform; at least one time of adjustment is carried out on the amplitude and/or the frequency of the middle-section waveform, one test driving waveform is obtained once for each adjustment, test printing is carried out, and if the test driving waveform does not meet the requirements, the adjustment is carried out again until a target waveform is obtained; referring to fig. 1-1, the x direction of fig. 1-1 is a time parameter, the y direction is a voltage parameter, the first waveform is an initial driving waveform preset by the system, the second waveform is an actual driving waveform formed by feeding back an energy curve of an ink droplet ejected by the nozzle under the driving of the initial driving waveform, it can be understood that under the driving conversion effect of the initial driving waveform on the ink droplet under other factors, the point C is a conversion voltage of the ink droplet ejection, and as can be seen from fig. 1-1, the conversion voltage of the point C is lower than the preset value, which is due to the energy consumption caused by wind resistance and the like in the ink ejection process. Therefore, the frequency and/or amplitude of the initial driving waveform is adjusted, further, referring to fig. 1-2, a peak is added to the driving waveform according to the duration of the initial driving waveform, so that the duration is increased, the electric energy is increased in the preparation stage of ink jet, so that the ink drop can obtain larger kinetic energy, such as the position of point B, and the actual driving voltage is larger than the preset voltage at the moment of ink jet, so that the ink drop obtains larger initial kinetic energy, and wind resistance and loss of the ink drop in the movement process can be fully counteracted, so that the ink drop falls into the designated position.
It should be noted that: the intermediate band includes not only 1 peak, but also the peak values of the respective peaks may be the same or different if the intermediate band includes a plurality of peaks.
In an embodiment, the step S3 further includes:
storing the target driving waveform and/or controlling a spray head to perform ink jet printing according to the target driving waveform.
By adopting the optimization method of the nozzle driving waveform, the driving waveform is adjusted for a plurality of times according to the state information of the ejected ink drops, and the adjusted driving waveform is optimized to obtain the target driving waveform which is actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the appointed printing position according to the preset track, and the effect of printing images is ensured.
In one embodiment, as shown in fig. 2, the step S1 includes:
s11: acquiring a motion track of the ink drop;
specifically, a CCD camera or other imaging device is used to obtain the motion trajectory of the ink drop from the nozzle to the landing position.
S12: acquiring real-time position information of ink drops according to the motion trail;
specifically, the position information of the ink droplet at any time can be determined by the movement locus.
S13: and obtaining the state information according to the position information and the ink drop volume corresponding to the position information.
Specifically, the position information of the ink drop at any moment and the volume of the ink drop at any position are acquired to obtain real-time state information, wherein the state information can be understood as the position information of the ink drop at the position compared with the preset position and the volume difference between the initial volume and the actual volume of the ink drop, and the volume difference between the preset volume of the position and the actual volume of the position, and can be understood as the difference between the kinetic energy of the ink drop at the position and the expected kinetic energy.
By acquiring the state information of any position of the ink drop, the energy loss of the ink drop in the movement process can be obtained, so that the driving waveform is guided to be adjusted, and the position of the landing point of the ink drop is ensured to be a preset position.
In one embodiment, as shown in fig. 3, the step S13 includes:
s131: according to the motion trail, obtaining the drop point position and the initial position of the ink drop;
Specifically, according to the captured actual movement track of the ink drop, a drop point position and an initial position of the ink drop are obtained, wherein the initial position is a coordinate position corresponding to the moment when the ink drop is ejected from the nozzle, and the drop point position is a coordinate position in the same coordinate system with the initial position when the ink drop is dropped into the printing medium.
S132: obtaining the position offset of the ink drop according to the drop position and the initial position;
Specifically, comparing the drop point position of the ink drop with a preset drop point position to obtain a drop point offset position of the ink drop, and obtaining an initial offset position of the ink drop according to the initial position of the ink drop and the preset initial position; determining the position offset of the ink drop according to the initial offset position and the drop offset position; such as: the initial offset position of the ink drop is behind 1mm, the offset position of the drop point is behind 1mm, and the offset amount is 0; the initial offset position of the ink drop is 1mm behind, the drop point offset position is 1.1mm behind, and the position offset amount is 0.1mm.
S133: obtaining loss information of the ink drops according to the difference value of the ink drop volumes at the drop point positions and the ink drop volumes corresponding to the initial positions;
S134: and obtaining the state information according to the position offset, the loss information and the motion trail.
Specifically, according to the actual volume of the ink drop at the drop point position and the volume of the initial ink drop, the loss of the volume of the ink drop, namely loss information of the ink drop, is obtained; then according to the position offset, the loss information and the motion trail, the state information of the ink drop at any moment, namely the information of the volume, the speed, the motion direction and the like of the ink drop, can be obtained.
External factors and internal factors of ink drop movement can be accurately obtained through the state information of the actual ink drop movement, and then the driving waveform is correspondingly adjusted, so that the effect of printing images is ensured.
In one embodiment, as shown in fig. 4, the S2 includes;
s21: acquiring state information corresponding to the position of the drop point;
specifically, state information of the final landing point of the ink droplet, that is, the landing point position and the ink droplet volume of the ink droplet is acquired.
S22: at least once adjusting the peak value of the energy adjustment wave band of the preset driving waveform according to the state information corresponding to the position of the ink drop at the drop point to obtain a plurality of transition driving waveforms corresponding to the adjustment times;
The energy adjusting wave band is a wave band part selected from the initial driving wave form and/or a wave band part newly added in the initial driving wave form.
Specifically, according to state information corresponding to an actual drop point of an ink drop, determining lost energy and an offset position in an air movement process of the ink drop, if the drop point position of the ink drop is in front of a preset position (the distance of the ink drop along the moving direction of a spray head is greater than the preset distance), an energy adjusting wave band is a wave band part selected in an initial driving waveform, which indicates that the kinetic energy of the ink drop when the ink drop exits a spray nozzle is too large, if the drop point position of the ink drop is behind the preset position, which indicates that the kinetic energy of the ink drop when the ink drop exits the spray nozzle is too small (the distance of the ink drop along the moving direction of the spray head is less than the preset distance), and the energy adjusting wave band is a wave band part increased in the initial driving waveform; and then at least one time of adjustment is carried out on the peak value of the energy adjusting wave band to obtain a transition driving waveform, so that the kinetic energy of the ink drops after the ink drops exit the nozzle is adjusted, and the ink drops are ensured to reach the designated position.
In an embodiment, as shown in fig. 5, when a movement distance corresponding to an actual drop point position of the ink droplet in the movement direction of the nozzle is smaller than a preset distance, the step S22 includes:
S221: taking the state information of the ink drops corresponding to the initial driving waveform as first state information;
s222: and adding the energy adjusting wave band to the initial driving waveform according to the first state information to obtain a first transition driving waveform.
Specifically, the driving waveform corresponding to the ink drop is regulated according to the state information corresponding to the position of the landing point of the ink drop, specifically, the amplitude or duration of a newly added energy regulating wave band in the driving waveform is regulated, so that the ink drop finally ejected by the nozzle can reach a designated position, repeated debugging is carried out for multiple times, a new driving waveform is obtained once debugging is finished, and then test printing is carried out; in the first adjustment, an energy adjustment wave band is newly added in the initial driving waveform, and the energy adjustment wave band is adjusted from the second adjustment. As shown in fig. 1-2, the energy adjustment band of the a point position is adjusted.
In one embodiment, as shown in fig. 6, the step S222 includes:
S2221: acquiring initial wave crest time and initial wave trough time of an initial driving waveform;
s2222: and setting the peak and the frequency of the energy regulating wave band according to the state information by combining the initial peak time and the initial trough time to obtain a first transition driving waveform.
Specifically, when the initial driving waveform is directly regulated for the first time, the peak time and the trough time of the initial driving waveform are set to be the duration of the energy regulating wave band, and the duration is used as the peak value and the frequency of the energy regulating wave band, so that a new driving waveform is obtained, and the driving waveform is used as a first transition driving waveform; the subsequent transition driving waveforms are obtained by adjusting the peak value and/or the frequency of the energy adjusting wave band on the basis of the first driving waveform.
In one embodiment, as shown in fig. 7, in S3;
s31: acquiring all the transition driving waveforms;
s32: and performing linear fitting on each transition driving waveform to obtain the target driving waveform.
Specifically, the position of the landing point of the ink drop has a region range, which can be understood that as long as the ink drop falls into the specified range, the effect of printing the image meets the printing requirement, fitting is performed according to a plurality of adjusted driving waveforms corresponding to a plurality of ink drops falling into the specified range, and a target driving waveform is output; the target driving waveform obtained through fitting can obtain that the amplitude voltage of the energy-regulating wave band is the best 1/2 of the maximum amplitude voltage of the driving waveform.
The method for optimizing the driving waveform of the spray head of the embodiment 1 is adopted, the driving waveform is adjusted for a plurality of times through the state information of the sprayed ink drops, and the adjusted driving waveform is optimized, so that the target driving waveform which is actually used for storage and/or printing is obtained; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the appointed printing position according to the preset track, and the effect of printing images is ensured.
Example 2
The present invention also provides a printing apparatus, as shown in fig. 8, comprising:
and a data acquisition module: the method comprises the steps of acquiring state information of ink drops obtained by driving a nozzle to jet ink by an initial driving waveform;
And a data processing module: the initial driving waveform is adjusted according to the state information to obtain a transition driving waveform;
and a data optimization module: and the method is used for optimizing the intermediate wave band in the transition driving waveform to obtain a target driving waveform.
By adopting the printing device of the embodiment, the driving waveform is adjusted for a plurality of times according to the state information of the ejected ink drops, and the adjusted driving waveform is optimized to obtain the target driving waveform which is actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the appointed printing position according to the preset track, and the effect of printing images is ensured.
In one embodiment, the data acquisition module includes:
A motion trail unit: acquiring a motion track of the ink drop;
drop position unit: acquiring real-time position information of ink drops according to the motion trail;
An ink drop state unit: and obtaining the state information according to the position information and the ink drop volume corresponding to the position information.
By acquiring the state information of any position of the ink drop, the energy loss of the ink drop in the movement process can be obtained, so that the driving waveform is guided to be adjusted, and the position of the landing point of the ink drop is ensured to be a preset position.
In one embodiment, the drop state unit includes:
real-time position unit: according to the motion trail, obtaining the drop point position and the initial position of the ink drop;
A position shift unit: obtaining loss information of the ink drops according to the difference value of the ink drop volumes at the drop point positions and the ink drop volumes corresponding to the initial positions;
drop loss unit: obtaining loss information of the ink drops according to the ink drop volumes corresponding to the drop point positions and the initial positions;
Actual state unit: and obtaining the state information according to the position offset, the loss information and the motion trail.
External factors and internal factors of ink drop movement can be accurately obtained through the state information of the actual ink drop movement, and then the driving waveform is correspondingly adjusted, so that the effect of printing images is ensured.
In one embodiment, the data processing module comprises;
drop point state unit: acquiring state information corresponding to the drop point position of the ink drop;
Transition waveform unit: adjusting the peak value of the energy adjusting wave band of the preset driving waveform at least once according to the state information to obtain a plurality of transition driving waveforms corresponding to the adjustment times;
the energy adjusting wave band is a wave band part selected from the original initial driving wave form and/or a wave band part newly added in the initial driving wave form.
In an embodiment, when a movement distance corresponding to an actual drop point position of the ink droplet in a movement direction of the nozzle is smaller than a preset distance, the transition waveform unit includes:
Unit state unit: acquiring the state information of the ink drops corresponding to the initial driving waveform as first state information;
unit waveform unit: and adding the energy adjusting wave band to the initial driving waveform according to the first state information to obtain a first transition driving waveform.
In one embodiment, the unit waveform element includes:
waveform parameter unit: acquiring initial wave crest time and initial wave trough time of an initial driving waveform;
A waveform processing unit: and setting the peak and the frequency of the energy regulating wave band according to the state information by combining the initial peak time and the initial trough time to obtain a first transition driving waveform.
In an embodiment, in the data optimization module;
Waveform acquisition unit: acquiring a plurality of transition driving waveforms;
waveform fitting unit: and performing linear fitting on each transition driving waveform to obtain the target driving waveform.
Adopting the optimizing device of the printing driving waveform of the embodiment 2, adjusting the driving waveform for a plurality of times through the state information of the ejected ink drops, and optimizing the adjusted driving waveform to obtain a target driving waveform which is actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the appointed printing position according to the preset track, and the effect of printing images is ensured.
Example 3
Embodiment 3 of the present invention provides a printing apparatus, as shown in fig. 9, including at least one processor, at least one memory, and computer program instructions stored in the memory.
In particular, the processor may comprise a Central Processing Unit (CPU), or an Application SPECIFIC INTEGRATED Circuit (ASIC), or may be configured as one or more integrated circuits that implement embodiments of the present invention.
The memory may include mass storage for data or instructions. By way of example, and not limitation, the memory may comprise a hard disk drive (HARD DISK DRIVE, HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or universal serial bus (Universal Serial Bus, USB) drive, or a combination of two or more of these. The memory may include removable or non-removable (or fixed) media, where appropriate. The memory may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory is a non-volatile solid state memory. In a particular embodiment, the memory includes Read Only Memory (ROM). The ROM may be mask programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these, where appropriate.
The processor reads and executes the computer program instructions stored in the memory to implement the method for optimizing the driving waveform of any one of the spray heads in embodiment 1.
In one example, the printing device may also include a communication interface and a bus. The processor, the memory and the communication interface are connected through a bus and complete communication with each other.
The communication interface is mainly used for realizing communication among the modules, the devices, the units and/or the equipment in the embodiment of the invention.
The bus includes hardware, software, or both, that couple components of the printing device to each other. By way of example, and not limitation, the buses may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a micro channel architecture (MCa) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus, or a combination of two or more of the above. The bus may include one or more buses, where appropriate. Although embodiments of the invention have been described and illustrated with respect to a particular bus, the invention contemplates any suitable bus or interconnect.
In summary, the method, the device, the equipment and the storage medium for optimizing the driving waveform of the spray head provided by the embodiment of the invention. Adjusting the driving waveform for a plurality of times according to the state information of the ejected ink drops, and optimizing the adjusted driving waveform to obtain a target driving waveform which is actually used for storage and/or printing; because the target driving waveform is adjusted according to the actual state information of the ink drops, the ink drops ejected under the driving of the target driving waveform can move to the appointed printing position according to the preset track, and the effect of printing images is ensured.
It should be understood that the invention is not limited to the particular arrangements and instrumentality described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. The method processes of the present invention are not limited to the specific steps described and shown, but various changes, modifications and additions, or the order between steps may be made by those skilled in the art after appreciating the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A method of optimizing a spray head drive waveform, the method comprising:
S1: acquiring state information of ink drops obtained by driving a nozzle to jet ink by an initial driving waveform;
s2: and adjusting the initial driving waveform according to the state information to obtain a transition driving waveform, wherein the adjusting of the initial driving waveform at least comprises the following steps: setting an intermediate wave band capable of adjusting the kinetic energy of the driving waveform in the initial driving waveform;
S3: optimizing the intermediate wave band in the transition driving waveform to obtain a target driving waveform;
Wherein the transition drive waveform includes a waveform that designates an intermediate band and/or increases the intermediate band as an energy adjustment band in the initial drive waveform.
2. The method of optimizing a head driving waveform according to claim 1, wherein S1 comprises:
s11: acquiring a motion track of the ink drop;
s12: acquiring real-time position information of ink drops according to the motion trail;
S13: and obtaining the state information according to the position information and the ink drop volume corresponding to the position information.
3. The method of optimizing a head driving waveform according to claim 2, wherein S13 includes:
s131: according to the motion trail, obtaining the drop point position and the initial position of the ink drop;
s132: obtaining the position offset of the ink drop according to the drop position and the initial position;
S133: obtaining loss information of the ink drops according to the difference value of the ink drop volumes at the drop point positions and the ink drop volumes corresponding to the initial positions;
S134: and obtaining the state information according to the position offset, the loss information and the motion trail.
4. A method of optimizing a head drive waveform according to claim 3, wherein S2 comprises;
s21: acquiring state information corresponding to the position of the drop point;
S22: and regulating the peak value of the energy regulating wave band corresponding to the initial driving waveform at least once according to the state information corresponding to the position of the ink drop at the drop point, so as to obtain a plurality of transition driving waveforms corresponding to the regulating times.
5. The method according to claim 4, wherein when a movement distance corresponding to an actual landing position of the ink droplet in a movement direction of the head is smaller than a preset distance, the S22 includes:
s221: taking the state information of the ink drops corresponding to the initial driving waveform as first state information;
s222: and adding the energy adjusting wave band to the initial driving waveform according to the first state information to obtain a first transition driving waveform.
6. The method of optimizing a head driving waveform according to claim 5, wherein S222 includes:
S2221: acquiring initial wave crest time and initial wave trough time of an initial driving waveform;
s2222: and setting the peak and the frequency of the energy regulating wave band according to the state information by combining the initial peak time and the initial trough time to obtain a first transition driving waveform.
7. The method of optimizing a head driving waveform according to any one of claims 4 to 6, characterized in that in S3;
s31: acquiring all the transition driving waveforms;
s32: and performing linear fitting on each transition driving waveform to obtain the target driving waveform.
8. A printing apparatus, comprising:
and a data acquisition module: the method comprises the steps of acquiring state information of ink drops obtained by driving a nozzle to jet ink by an initial driving waveform;
And a data processing module: and adjusting the initial driving waveform according to the state information to obtain a transition driving waveform, wherein the adjusting the initial driving waveform at least comprises: setting an intermediate wave band capable of adjusting the kinetic energy of the driving waveform in the initial driving waveform;
and a data optimization module: the method comprises the steps of optimizing an intermediate wave band in the transition driving waveform to obtain a target driving waveform;
Wherein the transition drive waveform includes a waveform that designates an intermediate band and/or increases the intermediate band as an energy adjustment band in the initial drive waveform.
9. A printing apparatus, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of any one of claims 1-7.
10. A storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method of any of claims 1-7.
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