CN2709163Y - Computer control device for printing ink viscosity - Google Patents
Computer control device for printing ink viscosity Download PDFInfo
- Publication number
- CN2709163Y CN2709163Y CN 03235798 CN03235798U CN2709163Y CN 2709163 Y CN2709163 Y CN 2709163Y CN 03235798 CN03235798 CN 03235798 CN 03235798 U CN03235798 U CN 03235798U CN 2709163 Y CN2709163 Y CN 2709163Y
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- printing ink
- viscosity
- computer controller
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- 239000000523 sample Substances 0.000 claims description 22
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 230000036541 health Effects 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 238000007865 diluting Methods 0.000 abstract 1
- 239000002085 irritant Substances 0.000 abstract 1
- 231100000021 irritant Toxicity 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 239000002904 solvent Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
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- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000010790 dilution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- 230000032258 transport Effects 0.000 description 1
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The utility model provides a computer control device for the printing ink viscosity, comprising an electromagnetic valve (32), a computer controller (2), a printing ink circulation pump (12), an air pressure sensor (5), a gas dynamic system (4), a diluting container (31), a printing ink tank (11) and an air pump (7). The traditional manual regulation and control are replaced by the computer automatic control, which improves the printing quality of the color printing machine, decreases the color difference of the same printing products, reduces the influence on the qualified rate of the products and the quality stability by the anthropic factor, reduces the harm to the physical health of the employee by noise, irritant odor, etc, improves the productivity, and reduces the cost; the computer control device for the printing ink viscosity is widely used in various color printing machines.
Description
Technical field
The utility model belongs to the printing packaging apparatus field, and more particularly it is a kind of printing-ink viscosity computer controller.
Background technology
In the printing packaging industry, various chromatic printing machines are widely used.The wherein accurately never solution preferably of control problem in real time of ink viscosity.In printing process, whether the ink viscosity in the color press stablizes the printing quality that directly has influence on the packaging product surface color.The viscosity control of printing-ink mainly comprises two aspects: the first, and the shades of colour ink viscosity preestablishes before the printing; The second, in printing process, keep set or regulate the invariable of ink viscosity.At present, mainly by finishing manually, concrete grammar is in the above-mentioned work of chromatic printing machine: 1. earlier a glass bar is inserted in the printing ink in the ink tank; 2. the glass bar of again surface adhesion printing ink is vertically mentioned; 3. with the naked eye observe the speed of following of printing ink on the glass bar; 4. according to the speed of following of printing ink or in the unit interval following of printing ink drip the viscosity sizes that number is judged printing ink.Drip speed fast → printing ink is rare → viscosity is little → need to add printing ink; Otherwise, drip speed slow → printing ink is dense → viscosity is big → need to add retarder thinner.
There is following shortcoming in the ink viscosity that goes to control in the printing machine with above-mentioned manual method:
1. ink viscosity is controlled inaccuracy, and the color distinction that makes product of the same race print out is bigger.
2. be not the ink viscosity in the real-time monitoring high speed printing, the percent defective and the defect rate of product are higher.
3. people's fatiguability is regulated control manually and is difficult to guarantee uniformity or the stability of ink viscosity in long-time, directly influences the printing quality stable of bulk article.
4. operating personnel's consitution factors such as (experience, level, ability, sense of responsibility, healths) directly influences product quality.
5. skilled and experienced employee turnover also will directly influence product quality, and product quality is excessive to operative employee's dependence.
6. all to influence the employee healthy for the noise of the penetrating odor of retarder thinner, machine and long-continued reason such as day and night work.
In general, existing manual method cost height is wasted time and energy, and production efficiency is low.
Summary of the invention
The purpose of this utility model aims to provide a kind of printing-ink viscosity computer controller, automatically control with computer and to replace traditional regulation and control manually, realize easily according to preset parameter (viscosity number) to printing-ink viscosity carry out in real time, accurate computer regulates automatically and controls.
The purpose of this utility model realizes by following measure: a kind of printing-ink viscosity computer controller, it is by magnetic valve 32, computer controller 2, printing ink circulating pump 12, air pressure probe 5, gas dynamic system 4, cut-back tank 31, ink tank 11 and air pump 7 are formed, two conduit intercommunications are arranged between ink tank 11 and the printing ink circulating pump 12, air pressure probe 5 one ends link to each other with the left cavity 123 of printing ink circulating pump, the other end links to each other with computer controller 2, between cut-back tank 31 and the ink tank 11 magnetic valve 32 is arranged, magnetic valve 32 links to each other with computer controller 2, between air pump 7 and the printing ink circulating pump 12 gas dynamic system 4 is arranged.
Described a kind of printing-ink viscosity computer controller, its gas dynamic system 4 is made up of pressure regulator valve 41 and moisture separator 42.
Described a kind of printing-ink viscosity computer controller, its computer controller (2) is made up of single-chip microcomputer 21 and operation control panel 22.
The utlity model has following advantage:
1, computer carries out in real time and accurate control ink viscosity according to the parameter that sets in advance automatically.
2, improve the printing quality of colored printing machine, reduce the color difference of identical print product.
3, reduce the influence of human factor to the qualification rate and the quality stability of product.
4, reduce the degree of dependence of product printing quality to the people.
5, reduce the harm healthy such as noise, penetrating odor to the employee.
6, boost productivity, reduce cost.
Description of drawings
Fig. 1 is the utility model ink viscosity computer controller building block figure,
Fig. 2 is that the utility model ink viscosity computer controller is formed structure chart,
Fig. 3 is the structure chart of the utility model printing ink circulating pump,
The specific embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing.
In Fig. 1: printing-ink viscosity computer controller 6 is made up of the ink pumps circulatory system 1, computer controller 2, retarder thinner add-on system 3, gas dynamic system 4, air pressure probe 5.Wherein printing ink and solvent circulate in printing ink circulating pump 12 and ink tank 11; Computer controller 2 is made up of single-chip microcomputer 21 and operation control panel 22; Retarder thinner add-on system 3 is made up of cut-back tank 31 and magnetic valve 32, in the cut-back tank 31 retarder thinner is housed; Gas dynamic system 4 is made up of pressure regulator valve 41 and moisture separator 42.
In Fig. 2: printing ink and solvent ceaselessly circulate between ink tank 11 and printing ink circulating pump 12 in printing process, air pressure probe 5 one ends link to each other with the left cavity 123 of printing ink circulating pump 12, an other end links to each other with computer controller 2, computer controller 2 is converted into the ink viscosity value with the signal of air pressure probe 5 outputs, thereby and control the on-off that solvent in the magnetic valve 32 decision cut-back tanks 31 adds the pipeline switch in real time according to it, in order to guarantee the operate as normal of printing ink circulating pump 12, air will carry out pressure regulation with moisture separator 42 through pressure regulator valve 41 gas dynamic system 4 before air pump 7 enters printing ink circulating pump 12 separates with aqueous vapor.
In conjunction with Fig. 1, Fig. 2, Fig. 3, in printing process, adopt computerized control system, number or liquid crystal display.32 times of opening of magnetic valve can be provided with parameter as required voluntarily, and selected numerical value is write the relevant parameters register by operation control panel 22.
In order in real time ink viscosity in the printing process to be monitored, printing ink is ceaselessly circulated between ink tank 11 and printing ink circulating pump 12.Calculate ink viscosity by the pulse signal frequency that is installed in air pressure probe 5 outputs on the printing ink circulating pump 12.Air pressure probe 5 has two-way output, and one the tunnel is linear signal, and one the tunnel is switching signal.Its switching signal frequency is corresponding with the motion frequency of piston in the printing ink circulating pump 12.When ink viscosity increases, the piston motion frequency reduces in the printing ink circulating pump 12, correspondingly the switching signal frequency of air pressure probe 5 outputs reduces, computer controller 2 is opened magnetic valve 32, solubilizer in the ink tank 11, when the switching signal increase frequency of air pressure probe 5 outputs when setting value, illustrated that printing ink at this moment is diluted to desirable viscosity number, computer controller is closed magnetic valve 32, stops solubilizer in the ink tank 11.Because printing-ink and solvent all are inflammable and explosive, so computer controller 2 selects for use air pump 7 to make reciprocating motion of the pistons for printing ink circulating pump 12 provides air pressure, and do not use electronic pump, to avoid accident.Printing ink in the ink tank 11 ceaselessly circulates in printing ink circulating pump 12, and computer controller 2 is monitored the viscosity of printing ink in real time by air pressure probe 5, has realized the automation control of ink viscosity.
During 12 work of printing ink circulating pump, air pump 7 provides required atmospheric pressure for printing ink circulating pump 12 from air intake 122, and a horizontal piston is arranged in the middle of the printing ink circulating pump 12, transports about under the effect of air pressure.Air pressure probe probe 124 is installed in left cavity 123 upper ends of printing ink circulating pump 12, can a switch pressure be set to it, when the pressure that detects left cavity 123 when air pressure probe 5 is worth greater than this, and output high level, otherwise then defeated low level.When under the effect of the piston in the printing ink circulating pump 12 at air pressure during to left movement, the ink inlets 121 of right cavity 126 below printing ink circulating pump 12 suck printing ink, and pressure reduces in the at this moment left cavity 123, and air pressure probe 5 is output as low level.When moving right under the effect of piston at air pressure, the printing ink in the left cavity 123 is extruded ink export 125 by piston, sucks printing ink again in the left cavity 123, and at this moment air pressure probe 5 is output as high level.So in the reciprocating motion of the pistons process, dutycycle of air pressure probe 5 outputs is 50% periodic signal.When ink viscosity increased, the flow velocity of printing ink in printing ink circulating pump 12 descended, and piston motion frequency under same air pressure reduces, and the output signal cycle of corresponding air pressure probe 5 becomes big, and frequency reduces.
The experiment proved that between the frequency of ink viscosity and air pressure probe 5 output switching signals and exist one-to-one relationship.In printing process, printing ink ceaselessly circulates between ink tank 11 and printing ink circulating pump 12, and single-chip microcomputer 21 is monitored ink viscosity in real time by air pressure probe 5.When ink viscosity surpassed setting value, magnetic valve 32 received that control signal is opened, and solvent enters printing ink circulating pump 12 with printing ink from ink inlet 121 to be mixed, and with the dilution ink viscosity, when ink viscosity is reduced to ideal value, closes magnetic valve 32.
Solenoid valve control circuit adopts single-chip microcomputer 21 by solid-state relay control magnetic valve 32 make-and-break times.Be lower than when setting value when single-chip microcomputer 21 monitors ink viscosity, export a low level, the solid-state relay closure, magnetic valve 32 is opened, and solvent flows into printing ink circulating pump 12 to be mixed with printing ink, the reduction ink viscosity.
In the printing process of reality, the volume of the printing ink in the ink tank 11 is not constant, so this control procedure adopts the fuzzy parameter Adaptive PID Control, fuzzy control rule can carry out reasoning to pid parameter, helps carrying out the actual correction of parameter.
Below by the relation that experimental results show that between air pressure probe output signal frequency and ink viscosity:
The first step, preparing experiment equipment before experiment: 3# viscosimeter, measuring cup, one barrel of printing ink, one barrel of solvent, stopwatch, air pump, printing ink pipe, solvent pipe, ink tank, flux bath, circulating pump.
Second step was installed in an end of printing ink pipe on the ink inlet of circulating pump, and the other end is placed in the ink tank, and the certain viscosity of adding is the printing ink about 30sec in the ink tank.
In the 3rd step, the valve of closing the flux bath lower end provides the air pressure of 0.45Mpa to make circulating pump work with air pump to circulating pump, and printing ink just ceaselessly circulates in the printing ink circulating pump under ink tank.
The 4th step, get certain amount of solvent and add in the ink tank, treat printing ink and solvent evenly (can hear that the reciprocating motion of the pistons in the circulating pump is more stable this moment), from ink tank, take out a measuring cup printing ink, and measure the viscosity number of printing ink with the 3# viscosimeter.
In the 5th step, measure the number of times of piston this moment kind transportation in a second.The 4th of repeated experiments the step went on foot with the 5th then, and noted the data of each measurement.When ink viscosity is reduced to about 10sec, finish experiment.
Experimental data is carried out least square 3 rank fitting of a polynomials, and the result is as follows:
y＝-0.006x
3+0.64x
2-23x+382.4
The trinomial and the experimental data point that use the least square curve fitting method to obtain as can be known by analogous diagram match, and its error is in the accuracy rating that allows.
Need to prove that to those of ordinary skill in the art can also make some improvement and distortion to the utility model under the prerequisite of the utility model principle, this belongs to protection domain of the present utility model equally.
Claims (3)
1, a kind of printing-ink viscosity computer controller, it is characterized in that it is by magnetic valve (32), computer controller (2), printing ink circulating pump (12), air pressure probe (5), gas dynamic system (4), cut-back tank (31), ink tank (11) and air pump (7) are formed, between ink tank (11) and the printing ink circulating pump (12) two conduit intercommunications are arranged, air pressure probe (5) one ends link to each other with the left cavity (123) of printing ink circulating pump, the other end links to each other with computer controller (2), between cut-back tank (31) and the ink tank (11) magnetic valve (32) is arranged, magnetic valve (32) links to each other with computer controller (2), between air pump (7) and the printing ink circulating pump (12) gas dynamic system (4) is arranged.
2, a kind of printing-ink viscosity computer controller according to claim 1 is characterized in that gas dynamic system (4) is made up of pressure regulator valve (41) and moisture separator (42).
3, a kind of printing-ink viscosity computer controller according to claim 1 is characterized in that computer controller (2) is made up of single-chip microcomputer (21) and operation control panel (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235798 CN2709163Y (en) | 2003-03-13 | 2003-03-13 | Computer control device for printing ink viscosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235798 CN2709163Y (en) | 2003-03-13 | 2003-03-13 | Computer control device for printing ink viscosity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2709163Y true CN2709163Y (en) | 2005-07-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03235798 Expired - Fee Related CN2709163Y (en) | 2003-03-13 | 2003-03-13 | Computer control device for printing ink viscosity |
Country Status (1)
| Country | Link |
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| CN (1) | CN2709163Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952123B (en) * | 2008-02-25 | 2013-10-02 | 泰创股份公司 | Ink-saving ink supply of printing machines |
| CN104245321A (en) * | 2012-04-27 | 2014-12-24 | 丹麦得利速股份公司 | System and method for regulating and measuring flow |
| CN104503517A (en) * | 2014-11-27 | 2015-04-08 | 宝钢工程技术集团有限公司 | Cold-rolling color-coating paint viscosity automatic control system |
| CN105346285A (en) * | 2015-10-28 | 2016-02-24 | 重庆宏劲印务有限责任公司 | Intaglio printing process for preventing sawtooth opening from being formed in image-text edge of printing material |
-
2003
- 2003-03-13 CN CN 03235798 patent/CN2709163Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101952123B (en) * | 2008-02-25 | 2013-10-02 | 泰创股份公司 | Ink-saving ink supply of printing machines |
| CN104245321A (en) * | 2012-04-27 | 2014-12-24 | 丹麦得利速股份公司 | System and method for regulating and measuring flow |
| US9352552B2 (en) | 2012-04-27 | 2016-05-31 | Tresu A/S | System and method for regulating and measuring flow |
| CN104245321B (en) * | 2012-04-27 | 2016-09-14 | 丹麦得利速股份公司 | Systems and methods for regulating and measuring flow |
| CN104503517A (en) * | 2014-11-27 | 2015-04-08 | 宝钢工程技术集团有限公司 | Cold-rolling color-coating paint viscosity automatic control system |
| CN104503517B (en) * | 2014-11-27 | 2017-02-22 | 宝钢工程技术集团有限公司 | Cold-rolling color-coating paint viscosity automatic control system |
| CN105346285A (en) * | 2015-10-28 | 2016-02-24 | 重庆宏劲印务有限责任公司 | Intaglio printing process for preventing sawtooth opening from being formed in image-text edge of printing material |
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| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |