CN113492584B - Ink-jet printing method, device and equipment for PCB characters and storage medium - Google Patents
Ink-jet printing method, device and equipment for PCB characters and storage medium Download PDFInfo
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- CN113492584B CN113492584B CN202010195150.8A CN202010195150A CN113492584B CN 113492584 B CN113492584 B CN 113492584B CN 202010195150 A CN202010195150 A CN 202010195150A CN 113492584 B CN113492584 B CN 113492584B
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- 238000007641 inkjet printing Methods 0.000 title claims abstract description 52
- 238000003860 storage Methods 0.000 title claims abstract description 13
- 238000007639 printing Methods 0.000 claims abstract description 71
- 239000007921 spray Substances 0.000 claims abstract description 43
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- 230000000638 stimulation Effects 0.000 claims description 11
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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
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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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
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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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
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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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
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Abstract
The invention relates to the technical field of ink-jet printing, in particular to an ink-jet printing method, device and equipment for PCB characters and a storage medium. The method comprises the following steps of S1: acquiring printing data corresponding to the PCB characters; s2: configuring corresponding spray head driving voltage waveforms according to the printing data; s3, outputting the driving voltage waveform to drive a spray head to spray ink in a PCB (printed Circuit Board) designated area; and S4, drying and curing the printing ink. Through the print data according to the PCB character, for the corresponding shower nozzle drive voltage waveform of shower nozzle configuration, can print out the multiple different form in the PCB character for the PCB character handwriting of typing is clear.
Description
Technical Field
The invention relates to the technical field of ink-jet printing, in particular to an ink-jet printing method, device and equipment for PCB characters and a storage medium.
Background
The PCB (printed circuit board) character printer is based on the working principle of additive method, and is positioned by CCD accurate pattern according to Gerber data made by CAM, and then the specific character ink is sprayed and printed on the circuit board and solidified in time, so that the engineering of PCB character process is completed. The PCB character printer is an application of computer technology in the PCB industry, can conveniently and quickly produce PCBs, is favorable for environmental protection of pollution reduction and emission reduction, and meets the requirement of green production.
However, since the PCB has poor water absorption, the fluidity of the ink is high after the ink is sprayed on the PCB. The large-scale flow of the ink often causes the printed PCB characters to be unclear and unrecognizable, and the printing effect of the PCB characters is seriously influenced.
Disclosure of Invention
The embodiment of the invention provides an ink-jet printing method, device and equipment for PCB characters and a storage medium. The ink-jet printing method, the ink-jet printing device, the ink-jet printing equipment and the storage medium based on the PCB characters can enable printed PCB character handwriting to be clearer to a certain extent.
In one aspect, an embodiment of the present invention provides an inkjet printing method for a PCB character, where the method includes:
s1: acquiring printing data corresponding to the PCB characters;
s2: configuring corresponding spray head driving voltage waveforms according to the printing data;
s3, outputting the driving voltage waveform to drive a spray head to spray ink in a PCB (printed Circuit Board) designated area;
and S4, drying and curing the printing ink.
In one aspect, an embodiment of the present invention further provides an inkjet printing apparatus for printing characters on a PCB, the apparatus including:
the acquisition module is used for acquiring the printing data corresponding to the PCB characters;
the configuration module is used for configuring corresponding spray head driving voltage waveforms according to the printing data;
the output module is used for outputting the driving voltage waveform to drive the spray head to spray ink in a PCB (printed Circuit Board) designated area;
and the curing module is used for drying and curing the ink.
In one aspect, an embodiment of the present invention provides an inkjet printing apparatus for characters on a PCB, the apparatus including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of inkjet printing of PCB characters as described above.
In one aspect, an embodiment of the present invention provides a computer storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the above-mentioned method for inkjet printing of PCB characters.
In summary, according to the inkjet printing method, the inkjet printing device, the inkjet printing apparatus and the storage medium for PCB characters provided by the embodiments of the present invention, by configuring corresponding nozzle driving voltage waveforms for the nozzles according to the print data of the PCB characters, a plurality of different forms in the PCB characters can be printed, so that the printed PCB characters are clear in writing.
Drawings
FIGS. 1-3 are schematic diagrams of three spray head drive voltage waveforms provided by the present invention;
FIG. 4 is a schematic diagram of a basic one of the nozzle drive voltage waveforms provided by the present invention;
FIG. 5 is a schematic flow chart illustrating a method for ink-jet printing of PCB characters in accordance with an embodiment of the present invention;
FIG. 6 is a flow chart illustrating a method for ink-jet printing of PCB characters in accordance with an embodiment of the present invention;
FIG. 7 is a schematic flow chart illustrating a method for ink-jet printing of PCB characters in accordance with an embodiment of the present invention;
FIG. 8 is a schematic flow chart illustrating a method for ink-jet printing of PCB characters in accordance with an embodiment of the present invention;
FIG. 9 is a schematic diagram of an exemplary embodiment of an inkjet printing apparatus for printing PCB characters;
FIG. 10 is a schematic diagram of an exemplary embodiment of an inkjet printing apparatus for printing characters on a PCB;
FIG. 11 is a schematic view of an exemplary embodiment of an inkjet printing apparatus for printing PCB characters;
FIG. 12 is a schematic view of an exemplary embodiment of an inkjet printing apparatus for printing PCB characters;
FIG. 13 is a schematic view of an exemplary embodiment of an inkjet printing apparatus for printing PCB characters;
fig. 14 is a schematic diagram of the connection of the components of an inkjet printing apparatus for printing characters on a PCB according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 another like element in a process, method, article, or apparatus that comprises the element.
In the process of printing the PCB characters, because the water absorption of the PCB is poor, the shapes of the PCB characters are changed, ink dots in various shapes or different states need to be printed, the ink jet amount of a spray head and the curing process need to be accurately controlled according to the printing data of the PCB characters, and the phenomenon that the ink sprayed on the PCB flows in a large range to cause unclear writing of the printed PCB characters can be prevented.
In the process of printing the PCB characters, because the types of ink dots are more, the ink amount and the printing mode adopted for printing each ink dot are different, and therefore, the ink dots with different forms in the PCB characters can not be printed by adopting a sprayer driving voltage waveform. In the process of printing the characters on the PCB, various nozzle driving voltage waveforms need to be set.
As shown in fig. 1 to 3, the head drive voltage waveforms include a first head drive voltage waveform 01, a second head drive voltage waveform 02, and a third head drive voltage waveform 03.
The sprinkler drive voltage waveform consists of different basic drive voltage waveforms. The head ejects ink under the drive of the basic drive voltage waveform.
The sprinkler drive voltage waveform is also typically provided with a stimulus voltage waveform. The head is driven by the stimulus voltage waveform without ejecting ink. The stimulus voltage waveform is only used to stimulate the jets before they fire.
As shown in fig. 1-3, the stimulation voltage waveforms of the head drive voltage waveforms include a first stimulation voltage waveform 1, a second stimulation voltage waveform 5, and a third stimulation voltage waveform 9. The basic drive voltage waveforms comprise a first basic drive voltage waveform 4, a second basic drive voltage waveform 3, a third basic drive voltage waveform 2, a fourth basic drive voltage waveform 6, a fifth basic drive voltage waveform 7, a sixth basic drive voltage waveform 8, a seventh basic drive voltage waveform 10, an eighth basic drive voltage waveform 11 and a ninth basic drive voltage waveform 12.
As shown in fig. 1, the first nozzle drive voltage waveform 01 includes a first stimulus voltage waveform 1, a first basic drive voltage waveform 4, a second basic drive voltage waveform 3, and a third basic drive voltage waveform 2.
As shown in fig. 2, the second head drive voltage waveform 02 includes a second stimulation voltage waveform 5, a fourth basic drive voltage waveform 6, a fifth basic drive voltage waveform 7, and a sixth basic drive voltage waveform 8.
As shown in fig. 3, the third head drive voltage waveform 03 includes a third voltage waveform 9, a seventh basic drive voltage waveform 10, an eighth basic drive voltage waveform 11, and a ninth basic drive voltage waveform 12.
The head ejects ink once per driving of the basic driving voltage waveform.
As shown in fig. 4, the basic driving voltage waveform includes a first period t0, a second period t1, a third period t2, and a fourth period t3, a fifth period t4.
The first period t0 is a first waiting period. The second period t1 is a priming period. The third period t2 is a second waiting period. The fourth period t3 is an ink ejection period. The fifth period t4 is a third waiting period.
The larger the voltage difference UC of the basic driving voltage waveform is, the larger the jetting force is, the faster the dropped ink speed is, and the less easily the dot formed by the jetted ink overlaps with the dots formed by jetting in other driving waveforms. The voltage difference UC of the basic drive voltage waveform is too small, which may result in weak ejection. For each basic drive voltage waveform, the voltage difference UC, the first period t0, the second period t1, the third period t2, the fourth period t3 and the fifth period t4 may make the basic drive voltage waveform different from the other basic drive voltage waveforms.
In a head drive voltage waveform composed of a plurality of basic drive voltage waveforms, when the head drive voltage waveform includes a basic drive voltage waveform different from other head drive voltage waveforms or a combination of the basic drive voltage waveforms is different from other types of head drive voltage waveforms, the head drive voltage waveform is different from the other types of head drive voltage waveforms, an ink ejection manner of the head is different from the other types of head drive voltage waveforms under the head drive voltage waveform, and a form of each dot formed by ejection under the head drive voltage waveform and a distribution form of each dot on a printing medium are also different from the other types of head drive voltage waveforms.
The first stimulus voltage waveform 1, the second stimulus voltage waveform 4, and the third stimulus voltage waveform 9 are used only for stimulating the head before ejection of the head, and the head does not eject ink under the drive of the first stimulus voltage waveform 1, the second stimulus voltage waveform 4, and the third stimulus voltage waveform 9.
In addition, the amount of ink that the shower nozzle jetted under different shower nozzle drive voltage waveforms is different, and the shower nozzle is when adopting different shower nozzle drive voltage waveforms to spout, and the ink curing parameter that adopts to carry out the solidification to printing ink also can be different. For example, when the head is used for curing with UV ink, the head adjusts the power of the UV lamp for curing the ejected UV ink before or after ejection with a head driving voltage waveform so that the ink ejected under the head driving voltage waveform has a better curing effect.
An embodiment of the present invention provides an inkjet printing method for PCB characters, as shown in fig. 5, the method includes the following steps S1 to S4.
Step S1: and acquiring printing data corresponding to the PCB characters.
The PCB characters are characters on the PCB. Because PCB's hydroscopicity is poor, when printing PCB, the printing ink mobility of spraying on PCB is big, and the PCB character has multiple different forms again, consequently when printing PCB character on PCB, often hardly control the ink volume of spraying everywhere on PCB, if the ink volume of spraying everywhere on PCB is improper, will hardly print out the clear PCB character of writing.
The PCB character printing data is data obtained by analyzing a Gerber file to obtain a graphic element and then obtaining the graphic element. The PCB character print data includes position information and shape information of each character to be printed on the PCB. Through processing the PCB character printing data, the jet time, the jet ink amount and the like of the PCB character printer when ink needs to be jetted on the PCB in the character printing process can be obtained.
Since the shapes of PCB characters are generally irregular, the amount of ink ejected to each character area, and the positions of ink dots to be ejected formed, are generally different during character printing. Therefore, before printing a printing area, the printing data of the PCB characters corresponding to the area needs to be acquired; and then, configuring a nozzle voltage driving waveform according to the printing data, and driving a nozzle to spray ink to the PCB by using the nozzle voltage driving waveform so as to print characters with clear characters on the PCB.
In one embodiment, as shown in fig. 6, step S1 further includes S11, acquiring image data of PCB characters to be printed; s12, converting the image data into image dot matrix data corresponding to the nozzles one by one; and S13, shielding the designated data in the image dot matrix data according to the thickness of the characters on the PCB.
Converting the image data into image dot matrix data in one-to-one correspondence with the nozzles, including: and acquiring each pixel in the image data, and converting each pixel into image dot matrix data corresponding to the nozzles one by one.
Since the PCB does not have water absorption, the ink ejected on the PCB has a large fluidity. After the dot matrix data of the image is obtained, the dot matrix data of the image needs to be processed to ensure that the ink sprayed on the PCB can not flow to form large-area ink, and further the printed PCB character handwriting is clear.
When processing the image dot matrix data, the thickness of the printed PCB characters is also considered. According to the thickness of the PCB characters and the fluidity of the ink, the designated data in the image dot matrix data are shielded, so that the excessive flowing range of the ink formed by jetting can be prevented, and the printed PCB characters are clear.
The method for shielding the specified data comprises the following steps: the specified data is set as blank dot data indicating that the nozzles do not eject ink.
Step S2: and configuring corresponding spray head driving voltage waveform according to the printing data.
And aiming at a character printing area on the PCB, wherein the printing data of the area corresponds to the form of the character of the PCB to be printed and formed in the area. When the form of the PCB character to be printed and formed in one area is different from that of other printing areas, the voltage driving waveform of the nozzle adopted by the nozzle for printing the printing area is also different from that of other printing areas. Thus, different parts of the PCB characters can be printed in different printing areas on the PCB.
Aiming at a character printing area on a PCB, before printing the area, acquiring printing data of PCB characters corresponding to the area; and then configuring corresponding nozzle driving voltage waveforms for the nozzles printing the area according to the acquired printing data.
The showerhead drive voltage waveform includes several basic drive voltage waveforms. The ink ejection mode of the head is determined by a combination of several basic driving voltage waveforms.
In one embodiment, as shown in fig. 4, the basic driving voltage waveform includes a first period t0, a second period t1, a third period t2, a fourth period t3, and a fifth period t4, which are sequentially connected.
In a second time period t1, reducing the voltage of the spray head from U1 to U2, and injecting ink into the nozzles of the spray head; in a third time period t2, the voltage of the spray head is U2; in a fourth period t3, the voltage of the head is increased from U2 to U1, and the ink injected into the nozzle is ejected from the nozzle opening of the head, where U2 is greater than U1.
The voltage difference UC = U1-U2, and the larger UC is, the larger the ink jet force is. The greater the force of jetting, the less likely the jetted ink overlaps with ink jetted at other stages.
In one embodiment, the second time period t1, the third time period t2, and the fourth time period t3 are all 2 microseconds.
In step S2, configuring a corresponding head driving voltage waveform according to the print data, including: a head drive voltage waveform including a plurality of basic drive voltage waveforms is configured for the head according to the print data.
The head ejects ink once by being driven by any one of the basic drive voltage waveforms among the head drive voltage waveforms.
The showerhead drive voltage waveform typically includes a plurality of basic drive voltage waveforms. By setting different basic driving voltage waveforms for the nozzle driving voltage waveforms, when the nozzle ejects ink to an ejection area of the PCB under the nozzle driving voltage waveforms, the nozzle is driven by each basic driving voltage waveform of the nozzle driving voltage waveforms respectively to eject the ink to the ejection area for multiple times, so that the nozzle can eject ink with large ink volume to the same ejection area.
The ink ejection mode of the head is determined by a combination of several basic driving voltage waveforms. The driving voltage waveform of the nozzle is formed by combining a plurality of basic driving voltage waveforms, and the nozzle ejects ink once under the driving of one basic driving voltage waveform. Since the combination of the basic drive voltage waveforms in the head drive voltage waveforms determines the amount of ink ejected from the head and the ink ejection time, the ink ejection method of the head is determined by the combination of a plurality of basic drive voltage waveforms in the head drive voltage waveforms.
In one embodiment, the sprinkler drive voltage waveform comprises one stimulation voltage waveform and at least three basic drive voltage waveforms for any sprinkler drive voltage waveform.
In step S2, the method includes: configuring a sprinkler driving voltage waveform to enable the sprinkler driving voltage waveform to comprise a stimulation voltage waveform and at least three basic driving voltage waveforms.
In one embodiment, in step S2, configuring a corresponding head driving voltage waveform according to the print data includes: acquiring the ink jet amount of each nozzle in the nozzle according to the image dot matrix data acquired by using the image data; according to one ink jet amount of the acquired ink jet amounts, one or more corresponding basic drive voltage waveforms are set in the head drive voltage waveforms for the ink jet amount, so that the head can eject the ink of the ink jet amount under the control of the corresponding basic drive voltage waveform or waveforms.
In one embodiment, as shown in fig. 7, before step S2, a step S5 is further included: at least 2 kinds of spray head driving voltage waveforms are preset, and each kind of spray head driving voltage waveform corresponds to one kind of ink jet mode.
The ink jet system includes: one or more of ink jetting amount, ink jetting time and jetting times.
By presetting at least 2 kinds of head driving voltage waveforms, it is possible to select one or more kinds of head driving voltage waveforms corresponding to the print data from the configured head driving voltage waveforms according to the print data when the head driving voltage waveforms are configured according to the print data in step S2.
According to the method, various spray head driving voltage waveforms are preset, so that different spray head driving voltage waveforms can be rapidly switched in the high-speed printing process of the PCB character printer, the ink-jet mode of the PCB character printer can be rapidly adjusted when various ink-jet modes are adopted to print PCB characters, and printed PCB character handwriting is clear.
In one embodiment, the head drive voltage waveform includes a plurality of basic drive voltage waveforms, and for any one of the head drive voltage waveforms, the basic drive voltage waveforms of the one kind of head drive voltage waveform are combined differently from those of the other kinds of head drive voltage waveforms.
In step S5, at least 2 kinds of head driving voltage waveforms are preset, including: a plurality of basic drive voltage waveforms are provided in one type of head drive voltage waveform, and the combination of the basic drive voltage waveforms provided is different from the other types of head drive voltage waveforms already provided.
And controlling the nozzle to perform ink ejection once according to each basic driving voltage waveform in the nozzle driving waveforms. When the head drive voltage waveform has only one kind of drive waveform, the greater the number of the basic drive voltage waveforms included in the voltage drive waveform, the greater the amount of ink that can be ejected by the head in the head drive voltage waveform.
When the combination of the basic driving voltage waveforms of one head driving voltage waveform is different from that of the other heads, the ink ejecting method of the head with the head driving voltage waveform corresponding to the head driving voltage waveform is also different from the ink ejecting method of the other heads.
In one embodiment, when a showerhead drive voltage waveform includes at least one basic drive voltage waveform that is not present in other showerhead drive voltage waveforms, the showerhead drive voltage waveform is different from the other showerhead drive voltage waveforms.
In step S5, at least 2 kinds of head driving voltage waveforms are preset, including: and presetting a nozzle driving voltage waveform, so that the nozzle driving voltage waveform comprises at least one basic driving voltage waveform which is not existed in the preset other nozzle driving voltage waveforms.
And step S3: and outputting the spray head driving voltage waveform to drive the spray head to spray ink in the designated area of the PCB.
After the head drive voltage waveform is arranged, the ink is ejected in a predetermined area using the arranged head drive voltage waveform.
The designated area is an area corresponding to print data in which the head drive voltage waveform is set. According to the printing data corresponding to a designated area, the driving voltage waveform of the nozzle corresponding to the designated area can be configured; the head drive voltage waveform corresponding to the designated area can drive the head to eject ink in the designated area, and corresponding partial or all PCB characters can be formed.
And step S4: and drying and curing the ink.
The ink jetted on the PCB needs to be dried and cured in order to create PCB characters on the PCB. Since the PCB does not have water absorption, ink ejected on the PCB needs to be rapidly cured when printing characters on the PCB, so that the ink can be prevented from flowing on the PCB in a wide range.
In one embodiment, as shown in fig. 8, step S4 further includes step S201: and setting corresponding ink curing parameters for the configured nozzle driving voltage waveform. Step S4 comprises the following steps: and drying and curing the ink by using the ink curing parameters.
Because each type of nozzle driving voltage waveform has different ink jetting modes, in order to achieve a better ink curing effect, ink curing parameters for curing ink jetted by each type of nozzle driving voltage waveform are different.
The ink curing parameters are set according to the ink jetting mode and the ink jetting amount corresponding to the drive voltage waveform of the nozzle and are used for being matched with the drive voltage waveform of the nozzle to enable the ink jetted in the designated area to be cured to form part or all of PCB characters with clear handwriting.
The inkjet head has different inkjet modes under various types of inkjet head driving voltage waveforms, and curing parameters for curing the ink ejected by the inkjet head may be different. Therefore, after a nozzle driving voltage waveform is configured, ink curing parameters corresponding to the nozzle driving voltage waveform need to be configured, so that the ink has a good curing effect, and the generated PCB character handwriting is clear.
In one embodiment, the ink comprises a UV ink, and the ink curing parameters comprise: a UV lamp power for curing the UV ink.
Step S201 further includes: setting corresponding power parameters of the UV lamp for the configured spray head driving voltage waveform; step S201 is followed by: adjusting the power of a UV lamp for curing UV ink by using the set power parameter of the UV lamp; step S4 further includes: and curing the UV ink by using the UV lamp pair for drying.
The UV printing ink is widely used printing ink and has the characteristics of high curing speed and good printing effect. Utilize the UV lamp can solidify UV printing ink, the solidification rate that can adjust UV printing ink through the power of adjusting the UV lamp reaches the printing ink volume according to a shower nozzle drive voltage waveform injection, adjusts printing ink solidification rate's purpose.
In one embodiment, after step S5, the method further includes: and setting corresponding ink curing parameters for the driving voltage waveform of the sprayer aiming at any preset driving voltage waveform of the sprayer.
According to the method, the corresponding spray head driving voltage waveform is configured for the spray head according to the printing data of the PCB characters, so that various different forms in the PCB characters can be printed, and the printed PCB characters are clear in handwriting.
An embodiment of the present invention provides an inkjet printing apparatus for PCB characters, as shown in fig. 9, the apparatus includes an acquisition module 1, a configuration module 2, an output module 3, and a curing module 4.
The acquisition module 1 is used for acquiring the printing data corresponding to the PCB characters;
the configuration module 2 is used for configuring corresponding spray head driving voltage waveforms according to the printing data;
the output module 3 is used for outputting the spray head driving voltage waveform to drive the spray head to spray ink in a PCB (printed Circuit Board) designated area;
and the curing module 4 is used for drying and curing the ink.
In one embodiment, as shown in fig. 10, the apparatus further comprises a preset module 5. The presetting module 5 is connected with the configuration module 2.
And the presetting module 5 is used for configuring corresponding spray head driving voltage waveforms according to the printing data, presetting at least 2 spray head driving voltage waveforms, and enabling each spray head driving voltage waveform to correspond to an ink jet mode.
In one embodiment, the ink ejection pattern is determined by a combination of several basic driving voltage waveforms.
In one embodiment, in an ink jet mode, the basic drive voltage waveform includes: a second period of time during which the voltage drops from U2 to U1; a third period during which the voltage remains U1; a fourth period in which the voltage rises from U1 to U2; wherein U2 is greater than U1.
In one embodiment, as shown in fig. 11, the apparatus further comprises a setup module 201. The setup module 201 is connected to the configuration module 2.
The setting module 201 is configured to configure a corresponding nozzle driving voltage waveform according to the print data, and then set corresponding ink curing parameters for the configured nozzle driving voltage waveform;
the curing module 4 is further configured to dry and cure the ink by using the ink curing parameters.
In one embodiment, as shown in fig. 12, the apparatus further comprises an adjustment module 6. The adjusting module 6 is connected with the setting module 201.
The ink comprises a UV ink, and the ink curing parameters comprise: a UV lamp power for curing the UV ink;
the setting module 201 is further configured to set corresponding UV lamp power parameters for the configured sprinkler driving voltage waveform;
the adjusting module 6 is configured to adjust the power of a UV lamp for curing UV ink by using the set UV lamp power parameter after setting the corresponding UV lamp power parameter for the configured nozzle driving voltage waveform;
the curing module 4 is further configured to cure the UV ink by drying with the UV lamp.
In one embodiment, as shown in fig. 13, the obtaining module 1 includes: an acquisition submodule 11, a conversion submodule 12 and a shielding submodule 13.
The obtaining sub-module 11 is configured to obtain image data of a PCB character to be printed;
the conversion submodule 12 is used for converting the image data into image dot matrix data corresponding to the nozzles one by one;
and the shielding submodule 13 is used for shielding the specified data in the image dot matrix data according to the thickness of the characters on the PCB.
When the device is used for carrying out ink-jet printing on the PCB characters, the operation method in the device is the same as the ink-jet printing method of the PCB characters. The modules, the using method and the operating method of the sub-modules of the ink-jet printing device for the PCB characters can refer to the ink-jet printing method for the PCB characters, and are not repeated.
Referring to fig. 14, the printing method according to the above embodiment of the present invention further provides an inkjet printing apparatus for PCB characters, the apparatus mainly includes:
at least one processor 401; and the number of the first and second groups,
a memory 402 communicatively coupled to the at least one processor; wherein,
the memory 402 stores instructions executable by the at least one processor to be executed by the at least one processor 401 to enable the at least one processor 401 to perform the method of the above-described embodiments of the present invention. For a detailed description of the apparatus, reference is made to the embodiments of the methods described above, which are not repeated herein.
Specifically, the processor 401 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.
The processor 401 reads and executes computer program instructions stored in the memory 402 to implement the ink jet printing method of characters on a PCB in any of the above embodiments.
In one example, the inkjet printing device of PCB characters may also include a communication interface 403 and a bus 410. As shown in fig. 14, the processor 401, the memory 402, and the communication interface 403 are connected by a bus 410 to complete communication therebetween.
The communication interface 403 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.
In addition, in combination with the inkjet printing method of the PCB characters in the above embodiments, embodiments of the present invention may provide a computer-readable storage medium to implement. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement a method of inkjet printing of characters on a PCB as in any of the above embodiments.
In summary, the inkjet printing method, the inkjet printing device, the inkjet printing apparatus and the storage medium for PCB characters provided in the embodiments of the present invention can solve the problem of unclear printed PCB character handwriting due to poor water absorption of the PCB during the process of printing the PCB characters by using a PCB character printer by using a mathematical modeling method and a pure computer algorithm after acquiring the print data of the PCB characters. Through the print data according to the PCB character, for the corresponding shower nozzle drive voltage waveform of shower nozzle configuration, can print out the multiple different form in the PCB character for the PCB character handwriting of typing is clear.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention. These are all intended to be covered by the scope of protection of the present invention.
Claims (9)
1. A method of inkjet printing of characters on a PCB, the method comprising:
s1: acquiring printing data corresponding to the PCB characters;
s2: configuring corresponding spray head driving voltage waveforms according to the printing data; the driving voltage waveform of the nozzle comprises a stimulation voltage waveform and at least three basic driving voltage waveforms, wherein the stimulation voltage waveform is used for stimulating the nozzle before the nozzle ejects, the at least three basic driving voltage waveforms are different in waveform voltage and different in ejected ink amount;
s3, outputting the drive voltage waveform of the nozzle to drive the nozzle to jet ink in the designated area of the PCB;
s4, drying and solidifying the printing ink;
step S201 is further included before step S4: setting corresponding ink curing parameters for the configured spray head driving voltage waveform;
the step S4 comprises the following steps: and drying and curing the ink by using the ink curing parameters.
2. The method of claim 1, wherein the method further comprises, before the S2:
s5: at least 2 kinds of spray head driving voltage waveforms are preset, and each spray head driving voltage waveform corresponds to one ink jet mode.
3. The method of claim 2, wherein the ink ejection pattern is determined by a combination of several basic drive voltage waveforms.
4. A method according to claim 3, wherein in an ink jetting mode, the basic drive voltage waveform comprises: a second period of time during which the voltage drops from U2 to U1; a third period during which the voltage remains U1; a fourth period in which the voltage rises from U1 to U2; wherein U2 is greater than U1.
5. The method of claim 1, wherein the ink comprises a UV ink, and the ink curing parameters comprise: a UV lamp power for curing the UV ink;
step S201 further includes: setting corresponding UV lamp power parameters for the configured spray head driving voltage waveform;
step S201 is followed by: adjusting the power of a UV lamp for curing UV ink by using the set power parameter of the UV lamp;
step S4 further includes: and drying and curing the UV ink by using the UV lamp.
6. The method of claim 1, wherein the S1 further comprises:
s11, acquiring image data of a PCB character to be printed;
s12, converting the image data into image dot matrix data corresponding to the nozzles one by one;
and S13, shielding the designated data in the image dot matrix data according to the thickness of the characters on the PCB.
7. An ink jet printing apparatus for printing characters on a PCB, the apparatus comprising:
the acquisition module is used for acquiring the printing data corresponding to the PCB characters;
the configuration module is used for configuring corresponding spray head driving voltage waveforms according to the printing data; the method comprises the steps that for any one sprayer driving voltage waveform, the sprayer driving voltage waveform comprises a stimulation voltage waveform and at least three basic driving voltage waveforms, the stimulation voltage waveform is used for stimulating a sprayer before the sprayer sprays, the at least three basic driving voltage waveforms are different in waveform voltage and spraying ink amount; setting corresponding ink curing parameters for the configured spray head driving voltage waveform;
the output module is used for outputting the driving voltage waveform to drive the spray head to spray ink in a PCB (printed Circuit Board) designated area;
and the curing module is used for drying and curing the ink by using the ink curing parameters.
8. An inkjet printing apparatus based on a plurality of nozzles, the apparatus comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-6.
9. A computer storage medium having computer program instructions stored thereon, wherein,
the computer program instructions, when executed by a processor, implement the method of any one of claims 1-6.
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Address after: 518000 a201-a301, building a, Sino German European Industrial Demonstration Park, Hangcheng Avenue, guxing community, Xixiang street, Bao'an District, Shenzhen, Guangdong Patentee after: Shenzhen Hansen Software Co.,Ltd. Address before: 1701, 1703, building C6, Hengfeng Industrial City, 739 Zhoushi Road, Hezhou community, Hangcheng street, Bao'an District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN HOSONSOFT Co.,Ltd. |