CN106313896B - Ink jet numbering machine method for detecting viscosity - Google Patents
Ink jet numbering machine method for detecting viscosity Download PDFInfo
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- CN106313896B CN106313896B CN201610705327.8A CN201610705327A CN106313896B CN 106313896 B CN106313896 B CN 106313896B CN 201610705327 A CN201610705327 A CN 201610705327A CN 106313896 B CN106313896 B CN 106313896B
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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
- B41J2/07—Ink jet characterised by jet control
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
Abstract
Ink jet numbering machine method for detecting viscosity disclosed by the invention, step are：An initial crystal oscillator frequency f is set, the cycle T of ink dot formation is obtained according to crystal oscillator frequency, cycle T is divided into N deciles, withOne time gradient；In a cycle T, since the time starting point of a cycle, often it is incremented byTime charging pole just several ink dots are charged, and record the time value t that charges every timen1, 1≤n≤N；In each time gradientIt is interior, the continuous detection band point ink dot of phase detectors, detect that pulse signal is sent to master controller, record and detect the time value t of pulse signaln2；Calculate tn1With tn2Between time difference=tn2‑tn1, finally according to the fixed range S between time difference and charging slot motion and phase detector, calculate the line of ink marker speed of service V, V=S/, the situation of change of ink viscosity can be judged according to speed of service V.The present invention realizes that ink viscosity detects by a detection pole, reaches the purpose of the accommodation to opportunity of charging.
Description
Technical field
The present invention relates to industrial code-spraying machine technical field, more particularly to a kind of ink jet numbering machine method for detecting viscosity.
Background technology
Ink jet numbering machine be it is a kind of controlled by software, the equipment being identified using cordless on product, mainly by
Ink-jet coded system and ink system are formed, wherein, electric field deflected continuous ink jet ink jet numbering machine is in electric field using powered ink dot
In deflection realize the reduction of character, often referred to simply as CIJ ink jet numbering machines.
As illustrated in fig. 1 and 2, the operation principle of CIJ ink jet numbering machines is a kind of solvent-borne type quick drying ink（Ink）In compression pump
Ejected under pressure effect from nozzle, for ink when by nozzle 1, vibrated brilliant 2 effect fragments into a string of continuous, spacing phases
Deng and size identical ink droplet, spray specific ink dot when charging pole 3 is continued move past under ink flow direction filled with it is specific powered
Amount, specifically ink dot splits off from the line of ink marker in pole 3 of charge, and charging pole 3 is that it has added certain voltage, when ink dot is from leading
The moment that the electric line of ink marker splits off takes can just protect electric charge with the charging directly proportional negative electrical charge of pole institute's making alive, such ink dot
Deposit.By changing the voltage swing of charging pole, so predetermined negative electrical charge can be filled with to specific ink droplet, under the continuing of pressure,
Black stream continues to move downward, by the way that powered ink droplet is through too high among two high-voltage deflection for being respectively provided with generating positive and negative voltage plates 5
It can be deflected when pressing deflecting plates 5, how much electrically charged degree of deflection depends on, and uncharged ink droplet does not deflect, and one
Straight flight downwards, flow into recovery tube 6, final recovered pipeline, which is returned in ink box, to be recycled, the powered and ink droplet that deflects with
Certain speed and angle is fallen on before vertical shower nozzle on the object passed through, is reduced the graph text information editted before, is made
The graph text information that can to print with the ink jet numbering machine of solvent-borne type quick drying ink drying within the extremely short time is attached to production
On product, in order to be detected to the electricity of powered ink dot, a phase can be also set to examine between charging pole 2 and high-voltage deflection plate 5
Device 4 is surveyed, the effect of phase detectors 4 is the detection powered situation of ink droplet ink droplet, and feeds back to controller, and phase detectors 4 gather
Be pulse signal, controller sends the time that control signal control charged to ink dot to charging pole 3, and to shaking, crystalline substance 2 is sent
Shake brilliant signal control crystal oscillator frequency, and crystal oscillator frequency corresponds to the cycle that ink dot is formed, i.e., an ink dot is formed within the cycle,
Ink dot, which was formed in the cycle, has a relatively short time range to allow enough electricity on ink dot band.
Because the solvent of itself is also quickly volatilizing quick-dry type ink in use, if therefore ink viscosity meeting
Constantly rise, rise to a certain extent, ink dot separating difficulty from the line of ink marker is big, and ink dot is not easy to be formed, and the ink dot shape formed
Shape and size also change, and cause ink dot can not correctly be charged in charging slot, if ink viscosity is too low, also result in ink
Point fracture is bad, not of uniform size, and also results in the decline of ink dot electrical conductivity, can not be filled in the range of the optimal charging interval specific
Electricity, and then directly influence print quality until can not use.
In a word, the charging accuracy of ink dot determines the print quality of ink jet numbering machine in CIJ ink jet numbering machines, and accurately charge
On condition that ink jet numbering machine needs a good breakpoint quality（I.e. ink dot separates from the line of ink marker）, good ink dot quality shows disconnected again
Split that position is consistent with dot shape, want to remain good breakpoint quality just in use for same bottle ink
Ink is needed to remain the consistent of parameter in use, and change that in use can be over time except the shelf-life
To change and change, final expired can not use outside, is exactly that the viscosity of ink is quickly changing with environment temperature over time,
In contrast, ink viscosity consistently be ensure print quality a most important link, ink viscosity change when ink dot
Charging interval needs to carry out accommodation.
It is existing it is a kind of control ink viscosity mode be：Need to increase viscosity control system in CIJ ink jet numbering machines, for keeping
The viscosity of ink is constant, to ensure that prolonged high quality prints.A specific viscosimeter is used specifically in ink jet numbering machine
The viscosity measurements of discontinuity are carried out, the ink dot charging interval are adjusted according to viscosity measurements result, this mode real-time is weaker, together
Shi Yinwei viscosity detecting gauges are complicated, it is not easy to make, easily blocking during use causes the viscosity of detection to be forbidden, and produce and
Maintenance cost is high.
Also a kind of to detect the method for viscosity by detecting and calculating ink speed, it uses two phase detectors,
Detect the pulse signal of powered ink dot respectively on two phase detectors, calculate the time difference of pulse signal, and two phases
The distance between bit detector can calculate speed, in which, first preset an ink viscosity it is good in the case of
The line of ink marker speed of service, the situation of change of ink viscosity is judged by the change for detecting line of ink marker speed, at present in shower nozzle
Two phase detectors of middle setting cause shower nozzle component more, complicated, as described in Figure 1, typically by two phase detectors point
High-voltage deflection plate both sides are not arranged on.
In view of this, the present inventor furthers investigate to CIJ ink jet numbering machines, devises and a kind of is not needing viscosimeter and only
In the case of needing a phase detectors, using the viscous side automatically controlled can be carried out on the shower nozzle hardware system of existing ink jet numbering machine
Thus method, this case produce.
The content of the invention
It is an object of the invention to provide a kind of ink jet numbering machine method for detecting viscosity, is not needing viscosimeter and is only needing a phase
In the case of bit detector, i.e., it can judge ink by detecting line of ink marker velocity variations using the shower nozzle hardware system of existing ink jet numbering machine
Water viscosity B coefficent, adaptive adjustment charging opportunity is changed according to ink viscosity, the accommodation on charging opportunity is realized, avoids gluing
The influence of change is spent, ensure that the printing effect of lasting high quality.
To achieve these goals, the solution that uses of the present invention is：
Ink jet numbering machine method for detecting viscosity, its step are：
First, an initial crystal oscillator frequency f is set, the cycle T of ink dot formation is obtained according to crystal oscillator frequency, cycle T is divided into N
Decile, withFor a time gradient；
2nd, in a cycle T, since the time starting point of a cycle, often it is incremented byTime charging pole it is just right
Several ink dots are charged, the time value t that controller record charges every timen1, 1≤n≤N；
3rd, in each time gradientInterior, phase detectors constantly detect powered ink dot, if detecting a powered ink dot
Sent with regard to producing a pulse signal to controller, controller records the time gradientInside detect the time of pulse signal
Value tn2If in the time gradientInternal controller does not detect pulse signal then charging pulse time delayTime；
4th, t of the repeat step two and three until at least gathering a time gradient in a cycle Tn1And tn2Value；
5th, the one group of t collected in a cycle T is chosenn1And tn2Value, calculate tn1With tn2Between time difference=tn2-
tn1, the time differenceTime used in phase detectors is moved to from charging slot for ink dot, finally according to time difference and charging
Fixed range S between groove and phase detectors, calculate the line of ink marker speed of service V, V=S/, ink is judged according to speed of service V
The situation of change of viscosity.
The crystal oscillator frequency f, cycle T, time gradientAnd tn1And tn2It is recorded in controller.
After such scheme, beneficial effects of the present invention are：The present invention utilizes existing hardware device, without separately once gluing
Degree meter and phase detectors, are realized by the shower nozzle with a phase detectors, are formed in an ink dot in the cycle, collection ink
Point charging interval point information, and pulse signal acquisition time point corresponding to the charging interval point of the ink dot, obtain ink dot from
Charging slot moves to the time and speed used in phase detectors, line of ink marker viscosity B coefficent is judged according to this, according to viscosity B coefficent
The charging interval point and charge frequency of default are adjusted, specifically changes mutually straining according to ink viscosity with ink dot fracture opportunity
Change the accommodation for carrying out the charging interval, ensure that print quality.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Brief description of the drawings
Fig. 1 is the existing structural representation for carrying two phase detectors ink jet numbering machine printheads；
Fig. 2 is the existing structural representation for carrying a phase detectors ink jet numbering machine printhead.
Fig. 3 is the enlarged drawing of printhead charging slot and piezoelectric crystal part；
Fig. 4 is signal acquisition flow chart of the present invention.
Embodiment
The ink jet numbering machine method for detecting viscosity that the present invention discloses, its step are：
First, an initial crystal oscillator frequency f is set, the cycle T of ink dot formation is obtained according to crystal oscillator frequency, cycle T is divided into N
Decile, withFor a time gradient；
2nd, in a cycle T, since the time starting point of a cycle, often it is incremented byTime charging pole it is just right
Several ink dots are charged, the time value t that controller record charges every timen1, 1≤n≤N；
3rd, in each time gradientInterior, phase detectors constantly detect powered ink dot, if detecting a powered ink dot
Sent with regard to producing a pulse signal to controller, the time gradient is recorded by controllerInside detect pulse signal when
Between value tn2If in the time gradientInternal controller does not detect pulse signal then charging pulse time delayTime；
4th, t of the repeat step two and three until at least gathering a time gradient in a cycle Tn1And tn2Value；
5th, the one group of t collected in a cycle T is chosenn1And tn2Value, calculate tn1With tn2Between time difference=tn2-
tn1, the time differenceTime used in phase detectors is moved to from charging slot for ink dot, finally according to time difference and charging
Fixed range S between groove and phase detectors, calculate the line of ink marker speed of service V, V=S/, can be judged according to speed of service V
The situation of change of ink viscosity.
The viscosity B coefficent judgment rule of the present invention, can be as follows：When ink viscosity is preferable, print quality is also for most
Good, default now viscosity is normal viscosity, the line of ink marker now detected（Ink dot）The speed of service is as standard speed, in ink viscosity
During change, line of ink marker speed also changes immediately, and speed of service V accelerates to represent that ink viscosity reduces, if being less than normal viscosity system
Supplementing solvent is not in ink, and now ink dot is broken separation process quickening from the line of ink marker；Speed of service V, which is reduced, represents ink viscosity
Rise, solvent can be automatically replenished in ink if above standard valve system, untill speed is identical with standard value.And examine
Measure the speed of service of ink dot afterwards while can also correspondingly adjust the charging interval, charging interval reduction, speed when speed is fast
The charging interval extends when slow, you can ensures that all ink dots correctly charge, so as to keep the high quality of printing.
The crystal oscillator frequency f, cycle T, time gradientAnd tn1And tn2It is recorded in controller.
As indicated with 2, code spraying machine shower nozzle structure, there are nozzle 1, charging slot 2, shake crystalline substance 3, phase detectors 4, high-voltage deflection plate
5 and accumulator tank 6 form, in the nozzle structure, implement the detection method of viscosity, the line of ink marker out reaches to shake from nozzle 1 crystalline substance 3 and to be filled
Electric groove 2, the distance between charging slot 2 and phase detectors 4 are fixed as S, by taking crystal oscillator frequency 62.5kHz as an example, corresponding ink dot
The formation cycle is 16us, is divided into 8 deciles, i.e. N=8, a time gradient is exactly 2us, in 16us, often the ink dot formation cycle
It is incremented by 2us chargers just to charge to multiple ink dots, and records the charging interval value, then, phase detectors 4 will detect that band
The ink dot of point simultaneously produces pulse signal and is sent to controller, records in 8 time gradients detect time pulse signal respectively
It is worth, in general 8 time gradients detect 3-4 effective impulse signal, controller extraction charging interval value and pulse signal
The time value of reception calculates the time difference, obtains line of ink marker speed of service V according to this, judges that ink viscosity changes according to speed V.
The specific embodiment of the present invention is these are only, not to the restriction of protection scope of the present invention.All setting according to this case
The equivalent variations that meter thinking is done, each fall within the protection domain of this case.
Claims (2)
1. ink jet numbering machine method for detecting viscosity, it is characterised in that step is：
First, an initial crystal oscillator frequency f is set, the cycle T of ink dot formation is obtained according to crystal oscillator frequency, cycle T is divided into N etc.
Point, withFor a time gradient；
2nd, in a cycle T, since the time starting point of a cycle, often it is incremented byTime charge pole just to some
Individual ink dot is charged, the time value t that controller record charges every timen1, 1≤n≤N；
3rd, in each time gradientInterior, phase detectors constantly detect powered ink dot, if detecting, a powered ink dot just produces
A raw pulse signal is sent to controller, and controller records the time gradientInside detect the time value of pulse signal
tn2If in the time gradientInternal controller does not detect pulse signal then charging pulse time delayTime；
4th, t of the repeat step two and three until at least gathering a time gradient in a cycle Tn1And tn2Value；
5th, the one group of t collected in a cycle T is chosenn1And tn2Value, calculate tn1With tn2Between time difference=tn2-tn1,
The time differenceMove to time used in phase detectors from charging slot for ink dot, finally according to time difference and charging slot with
Fixed range S between phase detectors, calculate the line of ink marker speed of service V, V=S/, ink viscosity is judged according to speed of service V
Situation of change.
2. ink jet numbering machine method for detecting viscosity as claimed in claim 1, it is characterised in that：The crystal oscillator frequency f, cycle T, time
GradientAnd tn1And tn2It is recorded in controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610705327.8A CN106313896B (en) | 2016-08-23 | 2016-08-23 | Ink jet numbering machine method for detecting viscosity |
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| CN201610705327.8A CN106313896B (en) | 2016-08-23 | 2016-08-23 | Ink jet numbering machine method for detecting viscosity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109397880B (en) * | 2018-12-14 | 2019-09-20 | 北京赛腾标识系统股份公司 | Device, method and the ink-jet system of nozzle driving are set |
| CN111791608B (en) * | 2020-09-10 | 2021-02-26 | 季华实验室 | Error adjusting method for seamless splicing of ink-jet printing head |
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|---|---|---|---|---|
| JPS6379034A (en) * | 1986-09-22 | 1988-04-09 | Fuji Xerox Co Ltd | Ink viscosity detector for ink jet printer |
| JP2002036595A (en) * | 2000-07-21 | 2002-02-05 | Hitachi Ltd | Ink jet recording apparatus |
| CN1496830A (en) * | 2002-10-09 | 2004-05-19 | 日立家用电器公司 | Ink-jet recording device |
| CN102331387A (en) * | 2011-05-18 | 2012-01-25 | 张家港金米兰德龙机械有限公司 | Viscosimeter for ink-jet printing machine |
| CN202242328U (en) * | 2011-07-27 | 2012-05-30 | 易达(广州)包装设备有限公司 | High-speed double-nozzle sprayer for non-contact inkjet printer |
| CN204359641U (en) * | 2015-01-26 | 2015-05-27 | 杜春卯 | Ink jet numbering machine ink viscosity automatic detection device |
| CN204575495U (en) * | 2015-03-27 | 2015-08-19 | 杭州蒙诺标识有限公司 | A kind of inkometer for ink jet numbering machine |
| CN105398218A (en) * | 2015-12-14 | 2016-03-16 | 上海美创力罗特维尔电子机械科技有限公司 | Jet printing system of ink-jet printer |
| CN105584218A (en) * | 2016-02-01 | 2016-05-18 | 厦门英杰华机电科技有限公司 | CIJ code spraying system with double parallel nozzles |
-
2016
- 2016-08-23 CN CN201610705327.8A patent/CN106313896B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6379034A (en) * | 1986-09-22 | 1988-04-09 | Fuji Xerox Co Ltd | Ink viscosity detector for ink jet printer |
| JP2002036595A (en) * | 2000-07-21 | 2002-02-05 | Hitachi Ltd | Ink jet recording apparatus |
| CN1496830A (en) * | 2002-10-09 | 2004-05-19 | 日立家用电器公司 | Ink-jet recording device |
| CN102331387A (en) * | 2011-05-18 | 2012-01-25 | 张家港金米兰德龙机械有限公司 | Viscosimeter for ink-jet printing machine |
| CN202242328U (en) * | 2011-07-27 | 2012-05-30 | 易达(广州)包装设备有限公司 | High-speed double-nozzle sprayer for non-contact inkjet printer |
| CN204359641U (en) * | 2015-01-26 | 2015-05-27 | 杜春卯 | Ink jet numbering machine ink viscosity automatic detection device |
| CN204575495U (en) * | 2015-03-27 | 2015-08-19 | 杭州蒙诺标识有限公司 | A kind of inkometer for ink jet numbering machine |
| CN105398218A (en) * | 2015-12-14 | 2016-03-16 | 上海美创力罗特维尔电子机械科技有限公司 | Jet printing system of ink-jet printer |
| CN105584218A (en) * | 2016-02-01 | 2016-05-18 | 厦门英杰华机电科技有限公司 | CIJ code spraying system with double parallel nozzles |
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