CN102566329A - Real-time dynamic control method for concentration and replenishment of developing solution of plate printing machine - Google Patents
Real-time dynamic control method for concentration and replenishment of developing solution of plate printing machine Download PDFInfo
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- CN102566329A CN102566329A CN2011103991337A CN201110399133A CN102566329A CN 102566329 A CN102566329 A CN 102566329A CN 2011103991337 A CN2011103991337 A CN 2011103991337A CN 201110399133 A CN201110399133 A CN 201110399133A CN 102566329 A CN102566329 A CN 102566329A
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Abstract
The invention relates to a real-time dynamic control method for concentration and replenishment of developing solution of a plate printing machine. The method can effectively realize digital control of a plate printing process and improve the plate printing quality and the working efficiency. The technical scheme is that: the real-time dynamic control method for the concentration and replenishment of the developing solution of the plate printing machine is performed by the following steps in sequence: (1) arranging a conductivity sensor and a temperature sensor to detect solution in a developing tank to obtain a conductivity sampling value x and a temperature sampling value T; (2) calculating by using a formula to obtain a conductivity value d of the solution; (3) comparing the conductivity value d with a conductivity standard value S and judging whether the solution is required to be replenished; and (4) calculating solution adding time Z if the solution is required to be replenished, starting a solution adding pump to add and replenish the solution, and then returning to the step (1) to perform recycling until the conductivity value obtained through calculation of the step (3) reaches the standard value, wherein the calculation formula of the conductivity d is d=(x*H+F-10.0)/[1+(T-25.0)*J].
Description
Technical field
The present invention relates to a kind of development liquor strength of version machine and control method of amount of liquid medicine of dashing, specifically is to dash the development liquor strength of version machine and replenish the Real-time and Dynamic control method.
Background technology
In the version machine equipment, the liquor strength that dashes in the version machine developing trough is to influence one of key factor of dashing the version quality, thereby higher to the stability requirement of liquor strength.Yet in the version process, will keep the stable difficulty of liquor strength bigger in reality, reason is:
1, in the plate developing process to the loss of soup: dash in the version process, react with soup in medicine film that plate needs to be melted away and the developing trough, cause its effective constituent to reduce.
2, the oxidation loss of soup: soup with the contacting of air in, have oxidation reaction, cause effective constituent to reduce; And environment temperature is high more, and the soup oxidation is fast more, thereby for a long time standby or operation all can cause the variation of concentration.
Because the uncertainty that liquor strength changes makes that dashing the version quality can't be effectively controlled; Traditional method in the industry is, 1, the course of work replenishes: the size according to plate is provided with magnitude of recruitment, replenishes a certain amount of soup when whenever dashing a plate; 2, standby process is replenished: according to the length of stand-by time, replenish certain soup.This method has certain defective:
Need use special-purpose conductivity measurement to measure the concentration of development soup when 1, starting shooting, the fluid infusion operation is carried out in manual work.This measure has not only increased loaded down with trivial details manual operation, and amount infused can't accurately control, and makes that dashing a version quality is affected.
When 2, using the plate of different size, need the magnitude of recruitment size of the soup of adjustment development in time.
3, the plate Yin Tuwen space of a whole page of the same race is different, and the soup of loss is also different.
4, quantitative additional liquid causes cumulative errors easily, causes liquor strength not reach the standard of dashing the version needs.When final soup does not reach the standard of dashing the version needs, cause that soup is discarded in advance, change the soup in the developing trough again.
To sum up: traditional liquid replenishing method because the error of the uncertainty of amount of liquid medicine loss and artificial control, makes liquor strength in the developing trough can't remain in developed concentration requires.Experience to conductivity measurement and operating personnel all has higher requirements, and the cost of publishing is also caused certain influence.
Summary of the invention
Technical matters to be solved by this invention is the deficiency that overcomes the above-mentioned background technology; A kind of Real-time and Dynamic control method of dashing version machine development liquor strength and replenishing is provided; This method can make liquor strength be stabilized in the certain standard interval effectively; Realize dashing version process Digital Control, improve and dash version quality and work efficiency, reduce the requirement of staff's skills and experience.
The technical scheme that the present invention proposes is: a kind of Real-time and Dynamic control method of dashing version machine development liquor strength and replenishing, carry out successively according to following steps:
1) conductivity sensor is set, temperature sensor detects the soup in the developing trough, obtains conductivity sampled value x and temperature sampling value T;
2) adopt the Conductivity Calculation formula to calculate, obtain the conductivity value d of soup;
3) the conductivity standard value S of the conductivity value d of soup and setting relatively determines whether will carry out the fluid infusion operation;
4) as the conductivity value of soup less than with the conductivity standard value S that sets, then need fluid infusion, then calculate administration timing of drug Z, and start automatic fluid filling pump and add a certain amount of additional soup by administration timing of drug; Get back to step 1) then and circulate once more, calculate the conductivity value that obtains until step 3) and reach standard value;
Described conductivity d computing formula is: and d=(x * H+F-10.0)/[1+ (T-25.0) * J]
In the formula: x is the conductivity sampled value;
T is a temperature gap, equals the difference after sample temperature deducts the compensation standard temperature;
H is the slope-compensation parameter;
F is the zero compensation parameter;
J is a temperature compensation parameter;
Said administration timing of drug Z computing formula is: Z=(S-d) * P;
In the formula: P is the unit soup value fluid infusion time;
S is the soup standard value.
Liquid level sensor also is set samples to developing trough herb liquid liquid level; If liquid level sampled value h is lower than setting value, then starts automatic liquid supply pump and make-up water pump and add additional soup and water; Rise to setting value until the liquid level sampled value, stop the operation of automatic liquid supply pump and make-up water pump.
The volume ratio of said additional soup and water is 2: 3.
In the said additional soup, the volume ratio of development stoste and water is 1: 1.
Said slope-compensation Parameter H is 100%;
Said zero compensation parameter F is 10.0mS/cm;
Said temperature compensation parameter J is 2.1%/℃;
Said compensation standard temperature is 25 ℃.
The said soup value fluid infusion time P of unit is 3s/0.1mS/cm;
Said soup standard value S is 82.0mS/cm.
The invention has the beneficial effects as follows: this method can realize through automaton, and various parameters quantized the realization Digital Control; The accurate control that this has not only guaranteed the development soup has effectively guaranteed to dash the version quality, and the serviceable life of having improved the development soup, has reduced manual intervention.
Embodiment
Below further specify through embodiment:
Embodiment:
The Real-time and Dynamic control method of dashing version machine development liquor strength and replenishing, carry out successively according to following steps:
Conductivity sensor, temperature sensor and liquid level sensor are installed in developing trough; During installation, should keep certain space near the sensor, so that measurement data is more accurate; After the start, sensor initializing work, and beginning image data.
It is following to set each controlled variable:
Soup standard value S 82.0mS/cm (be conductivity standard value S, according to the characteristic of plate medicine film and developer solution and definite empirical data)
Soup higher limit A 84.0mS/cm
Soup lower limit C 80.0mS/cm
Unit soup value fluid infusion time P 3s/0.1mS/cm
Fluid infusion L interval time 120s (empirical data)
Zero compensation parameter F 10.5mS/cm (the sensor compensation parameter can be adjusted as the case may be)
Slope-compensation Parameter H 101% (the sensor compensation parameter can be adjusted as the case may be)
The compensation standard temperature is 25 ℃ (empirical datas)
Liquid level setting value h is 15cm (when the liquid level sampled value is lower than setting value, sends the liquid feeding signal, when the liquid level sampled value reaches setting value, send stop the liquid feeding signal)
Adding liquid proportional q is 1: 4 (empirical data, promptly the development soup stoste of the best and the ratio of water are 1: 4 in the developing process)
Temperature compensation parameter J 2.1%/℃
Temperature compensation parameter is claimed the soup temperature rise coefficient again, and for the every rising kilowatt-hour of temperature conductance is the linear characteristic that rises, the soup temperature rise coefficient of common various soups is following:
Acid solution 1.0-1.6%/℃
Alkaline solution 1.8-2.2%/℃
Brine solution 2.2-3.0%/℃;
Soup in the present embodiment is an alkaline solution, temperature compensation parameter value 2.1%/℃, by soup production firm (stating clearly in the product description) is provided.
2) through the sensor acquisition data, temperature is 21.5 ℃, and the conductivity sampled value is 65.6mS/cm; The following conductivity d computing formula of substitution is calculated:
d＝(x×H+F-10.0)/[1+(T-25.0)×J]
Obtaining conductivity is 72.1mS/cm.
Wherein: x is the conductivity sampled value, and T is temperature gap (being that sample temperature deducts standard temperature);
3) current conductivity is 72.1mS/cm, less than the standard value 82.0mS/cm that sets.Event need be carried out the fluid infusion operation;
Again because of differing 9.9mS/cm with standard conductivity (82.0mS/cm);
Adopt administration timing of drug Z computing formula: Z=(S-d) P=(82.0-72.1) 3s/0.1=297s.
Draw finally that to need the fluid infusion time be 297s.
Recording conductivity after the fluid infusion this time is about 76.2mS/cm; Still less than conductivity standard value (82.0mS/cm); So wait for 120S to guarantee developer liquid bath stable conductivity, carry out the fluid infusion operation once more by next circulation then, reach standard value until the soup conductivity value.
After the soup conductivity value reaches standard value; Because liquid level sampled value h is 14cm; Still be lower than setting value 15cm (setting value confirms that as required liquid level sensor is confirmed the installation site according to setting value), therefore start automatic liquid supply pump and make-up water pump; Add additional soup and water (ratio that is converted into development stoste and water is 1: 4, the q value of also promptly setting) according to 2: 3 volume ratios; Send until liquid level sensor and to stop the liquid feeding signal, stop the operation of automatic liquid supply pump and make-up water pump.
In the present embodiment: the fluid infusion pump discharge is 200mL/min, and developer liquid bath capacity is 30L; Replenish in the soup, the volume ratio of development stoste and water (is the ratio of fluid infusion case interior development stoste and water at 1: 1; Development stoste is directly bought from production firm).
Claims (6)
1. one kind is dashed version machine development liquor strength and additional Real-time and Dynamic control method, carries out successively according to following steps:
1) conductivity sensor is set, temperature sensor detects the soup in the developing trough, obtains conductivity sampled value x and temperature sampling value T;
2) adopt the Conductivity Calculation formula to calculate, obtain the conductivity value d of soup;
3) the conductivity standard value S of the conductivity value d of soup and setting relatively determines whether will carry out the fluid infusion operation;
4) as the conductivity value of soup less than with the conductivity standard value S that sets, then need fluid infusion, then calculate administration timing of drug Z, and start automatic fluid filling pump and add a certain amount of additional soup by administration timing of drug; Get back to step 1) then and circulate once more, calculate the conductivity value that obtains until step 3) and reach standard value;
Described conductivity d computing formula is: and d=(x * H+F-10.0)/[1+ (T-25.0) * J]
In the formula: x is the conductivity sampled value;
T is a temperature gap, equals the difference after sample temperature deducts the compensation standard temperature;
H is the slope-compensation parameter;
F is the zero compensation parameter;
J is a temperature compensation parameter;
Said administration timing of drug Z computing formula is: Z=(S-d) * P;
In the formula: P is the unit soup value fluid infusion time;
S is the soup standard value.
2. a kind of Real-time and Dynamic control method of dashing version machine development liquor strength and replenishing according to claim 1 is characterized in that: liquid level sensor also is set developing trough herb liquid liquid level is sampled; If liquid level sampled value h is lower than setting value, then starts automatic liquid supply pump and make-up water pump and add additional soup and water; Rise to setting value until the liquid level sampled value, stop the operation of automatic liquid supply pump and make-up water pump.
3. a kind of Real-time and Dynamic control method of dashing version machine development liquor strength and replenishing according to claim 2 is characterized in that the volume ratio of said additional soup and water is 2: 3.
4. a kind of Real-time and Dynamic control method of dashing version machine development liquor strength and replenishing according to claim 3, it is characterized in that: in the said additional soup, the volume ratio of development stoste and water is 1: 1.
5. a kind of Real-time and Dynamic control method of dashing version machine development liquor strength and replenishing according to claim 4 is characterized in that:
Said slope-compensation Parameter H is 100%;
Said zero compensation parameter F is 10.0mS/cm;
Said temperature compensation parameter J is 2.1%/℃;
Said compensation standard temperature is 25 ℃.
6. a kind of Real-time and Dynamic control method of dashing version machine development liquor strength and replenishing according to claim 5 is characterized in that:
The said soup value fluid infusion time P of unit is 3s/0.1mS/cm;
Said soup standard value S is 82.0mS/cm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103543760A (en) * | 2013-09-11 | 2014-01-29 | 旺昌机械工业(昆山)有限公司 | Developing control system of direct platemaking and plate-developing machine |
| CN104458823A (en) * | 2014-12-12 | 2015-03-25 | 华南师范大学 | Method for rapidly detecting developing efficacy of developing solution |
| CN113670650A (en) * | 2020-05-14 | 2021-11-19 | 镇江乐华电子科技有限公司 | Liquid injection method of ultrathin slicing machine and ultrathin slicing machine |
| CN114054521A (en) * | 2020-07-31 | 2022-02-18 | 宝钢日铁汽车板有限公司 | Concentration control system and method in use process of circulating leveling liquid |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543760A (en) * | 2013-09-11 | 2014-01-29 | 旺昌机械工业(昆山)有限公司 | Developing control system of direct platemaking and plate-developing machine |
| CN104458823A (en) * | 2014-12-12 | 2015-03-25 | 华南师范大学 | Method for rapidly detecting developing efficacy of developing solution |
| CN104458823B (en) * | 2014-12-12 | 2017-06-30 | 华南师范大学 | A kind of method of quick detection developing liquid developing effect |
| CN113670650A (en) * | 2020-05-14 | 2021-11-19 | 镇江乐华电子科技有限公司 | Liquid injection method of ultrathin slicing machine and ultrathin slicing machine |
| CN114054521A (en) * | 2020-07-31 | 2022-02-18 | 宝钢日铁汽车板有限公司 | Concentration control system and method in use process of circulating leveling liquid |
| CN114054521B (en) * | 2020-07-31 | 2024-01-16 | 宝钢日铁汽车板有限公司 | Concentration control system and method in use process of circulating leveling liquid |
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Application publication date: 20120711 |