CN102632686A - Method and system for automatically detecting and controlling printing plate - Google Patents
Method and system for automatically detecting and controlling printing plate Download PDFInfo
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- CN102632686A CN102632686A CN2012101160526A CN201210116052A CN102632686A CN 102632686 A CN102632686 A CN 102632686A CN 2012101160526 A CN2012101160526 A CN 2012101160526A CN 201210116052 A CN201210116052 A CN 201210116052A CN 102632686 A CN102632686 A CN 102632686A
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Abstract
The invention discloses a method and a system for automatically detecting and controlling a printing plate. The method comprises the following steps that: an acquisition device is additionally mounted on a plate punching machine; the acquisition device is used for acquiring detection cions preset on a plate after PS plate development is finished, thus acquiring the dot density of the detection icons; next, the detected dot density is detected by a server to find out whether the dot density is consistent with a predetermined development threshold; and if the dot density is inconsistent with the predetermined development threshold, the server adjusts the parameters of the plate punching machine according to the detection result and changes the development conditions of the plate punching machine to the plate, so that the development of the plate meets the predetermined requirements. The method disclosed by the invention has the characteristics of additionally mounting the acquisition device on the plate punching machine, analyzing the acquired result by means of the server, and then controlling the parameters of the plate punching machine to be adjusted and changing the development conditions of the plate punching machine to the plate, so that the development of the plate meets the predetermined requirements. The detection result of the method is accurate and fast; the control process is simple and quick; the time of detecting the PS plate developed by the plate punching machine by manual work in the past is saved; and the shortcoming of insufficient accuracy of the detection result in the prior art is overcome.
Description
Technical field
The present invention relates to printing machinery technical equipment field, especially relate to a kind of automatic detection control method and system thereof of printing plate.
Background technology
The PS version is the abbreviation from English " Presensitized Plate ", and the Chinese meaning is a pre-coating light sensitive plate, nineteen fifty, is at first developed by Minnesota Mining and Manufacturing Company (Minisota Mining & ManufacturingCompany).The PS version is divided into " photo-polymerization type " and " light breakdown type " two kinds.Photo-polymerization type is with the printing down of negative master, and the diazonium light-sensitive surface of picture and text part is seen photo-hardening, stays on the version, and the diazonium light-sensitive surface of non-graphic part can not see light, and is non-sclerous, is developed the liquid dissolving and removes.The light breakdown type is with the printing down of positive master, and the diazonium compound of non-graphic part sees that light decomposes, and is developed the liquid dissolving and removes, and stays the diazonium compound of not seeing light that remains on the version.The oleophilic moiety of PS version is the high diazonium photosensitive resin of publishing the about 3 μ m of base plane, is good oleophilic drainage film, and printing ink is easy to sprawl in the above, and water is sprawled above being difficult in.The diazonium photosensitive resin also has good wearability and acid resistance.If, and make the light-sensitive surface enamelization through temperature baking 5～8min of 230～240 ℃, also can improve the hardness of forme, the press resistance rate of forme can reach 20～300,000.The hydrophilic segment of PS version is the alundum (Al film, high about 0.2～1 μ m of base plane that publishes, and hydrophily, wearability, chemical stability are all relatively good, thereby the press resistance rate of forme is also than higher.The Grains of PS version is fine and closely woven, and resolution ratio is high, and the site of formation is bright and clean complete, so tone rendering property is good, image definition is high; The blank parts of PS version has the higher ability that contains moisture, and the water consumption of forme is big during printing, and water, black balance are controlled easily.
Printing PS version all need detect the developing result of plate after printing down finishes at present; Though development threshold is configuring on the version machine when developing; But because some reason, the dot density after plate develops occurs deviation with preset development threshold through regular meeting.So whether the dot density that detects after developing does not meet the consistent important process that just becomes with preset development threshold.Check at present mostly with the naked eye cooperates magnifying glass to estimate; Judge with people's experience whether forme is qualified, omission often occurs, find just after the last machine printing that forme is underdevelop to cause " bottom ash "; Or overdevelop causes phenomenons such as " dot loss ", brings very big puzzlement to print production.
Summary of the invention
Detect the plate quality in order to remedy above-mentioned seal workman experience, perhaps detect the plate quality according to the manually-operated detecting instrument, cost is high, and efficient is low, inaccurate defective, and the present invention proposes a kind of automatic detection control method and system thereof of printing plate.
Its technical scheme is that a kind of automatic detection control method of printing plate is installing collector additional on the version machine; After the PS plate develops end, the detected icon that is preset on the plate is gathered; Gather its dot density, through server detected dot density is detected then, dot density value with preset is consistent to detect it; If inconsistently then regulate according to the liquidate parameter of edition machine of testing result by server; Change and dash the development conditions of version machine to plate, make the development of plate reach preset requirement, its concrete steps are:
(1) on plate, places the site test pattern;
(2) dash the developed dot density of the detected icon that of version machine by the collector collection;
(3) collector is transferred to server with collection result, and server compares dot density that collects and pre-set development threshold, if inconsistent, explains that the development of plate is undesirable;
(4) according to the comparative result of step (3), develop undesirable the time at plate, alarm gives the alarm, and server changes duty over to;
(5) according to the comparative result of step (3), time, development temperature or the solution level of the printing down of version machine dashed in the server controls adjustment, makes the development of follow-up plate reach pre-conditioned.
A kind of automatic detection and control system that adopts the printing plate of said method, said system comprise the server that dashes a version machine, be fixed on the collector that dashes on the version machine, be fixed on the alarm that dashes version machine top, be connected with alarm with collector respectively be fixed on dash on the version machine and with serve its Programmable Logic Controller that is connected.Adopt native system that the PS plate is detected automatically and controls, simple in structure, control easily, less to original change towards the version machine, do not influence the equipment normal running.
Said collector is an optical capturing equipment.With the optics collector detected icon is gathered, collection result has directly reflected the developing result of PS plate, and system is more accurate to the adjusting of plate, visually conforms with the observed result of naked eyes after the printing more.
Said collector is video camera or scanner.Adopt video camera or scanner as collector, the scope of selecting material of collector is more extensive, and technology maturation is stable, guarantees the acquisition quality of collector.
Said server is a computer.Adopt computer to carry out computing and need not increase other equipment, use simply to the program development of computer, computational speed is fast, and method of operating is not used the person easily and grasps.
Said Programmable Logic Controller is the PLC controller.The PLC controller technology is mature and stable, can wipe original program according to actual conditions and write new procedures again, the applied range model to indivedual version machines that dash again.
The present invention is directed to present PS designs towards a version machine (claiming automatic processing machine again); On the version machine, installing collector additional; Utilize server that the result who collects is analyzed; Control is regulated towards the parameter of version machine then, changes to dash the development conditions of version machine to plate, makes the development of plate reach preset requirement.Testing result of the present invention is accurately quick, and control procedure is simply rapid, has saved original workman and has liquidated edition time that the PS version of machine development detects, and has remedied the not accurate enough defective of original testing result.
Description of drawings
Fig. 1 is a kind of schematic flow sheet of method of the present invention;
Fig. 2 is the structural representation of one embodiment of the present invention;
1, dashes the version machine; 2, collector; 3, server; 4, Programmable Logic Controller; 5, plate; 6, alarm.
The specific embodiment
With reference to the accompanying drawings the present invention is further specified.
With reference to Fig. 1, a kind of automatic detection control method of printing plate is installing collector additional on the version machine; After the PS plate develops end, the detected icon that is preset on the plate is gathered; Gather its dot density, through server detected dot density is detected then, dot density value with preset is consistent to detect it; If inconsistently then regulate according to the liquidate parameter of edition machine of testing result by server; Change and dash the development conditions of version machine to plate, make the development of plate reach preset requirement, its concrete steps are:
(1) on plate, places the site test pattern;
(2) dash the developed dot density of the detected icon that of version machine by the collector collection;
(3) collector is transferred to server with collection result, and server compares dot density that collects and pre-set development threshold, if inconsistent, explains that the development of plate is undesirable;
(4) according to the comparative result of step (3), develop undesirable the time at plate, alarm gives the alarm, and server changes duty over to;
(5) according to the comparative result of step (3), time, development temperature or the solution level of the printing down of version machine dashed in the server controls adjustment, makes the development of follow-up plate reach pre-conditioned.
This method is when implementing; If the collection result that step (3) obtains is littler than preset development threshold; The plate overdevelop is described, is shortened developing time during conciliation or reduce the concentration of development soup or the temperature that reduction is developed that wherein reducing the development operating temperature is main operational means; After reduction development operating temperature does not reach requirement, then adopt the concentration that shortens developing time or reduction development soup to carry out compounding practice; If the collection result that step (3) obtains is bigger than preset development threshold; Explain that plate is underdevelop; Then prolong developing time during conciliation or increase the concentration of development soup or the temperature that raising is developed; Wherein improving the development operating temperature is main operational means, after raising development operating temperature does not reach requirement, then adopts the concentration that increases developing time or raising development soup to carry out compounding practice.
In conjunction with Fig. 2; A kind of automatic detection and control system that adopts the printing plate of the said method of claim 1, said system comprise the server 3 that dashes a version machine 1, be fixed on the collector 2 that dashes on the version machine, be fixed on the alarm 6 that dashes version machine top, be connected with alarm with collector respectively be fixed on dash on the version machine and with serve its Programmable Logic Controller that is connected 4.Said collector is an optical capturing equipment.Said collector is video camera or scanner.Said server is a computer.Said Programmable Logic Controller is the PLC controller.
Native system sets detected icon earlier when in use on plate 5, plate is sent into towards a version machine and carried out development operation then; After dashing version machine development end, collector is gathered the dot density of the test pattern on the plate, and collection result is input to server; Server compares the setting result who imports in advance in collection result and the server, and relatively whether dot density is consistent, if inconsistent; The parameter that development threshold is described needs to regulate; Alarm gives the alarm, and reminds the operator to suspend the follow-up work of dashing the version machine, and server is regulated development conditions simultaneously.If collection result is littler than preset development threshold; Explain that plate is over-exposed; The server controls Programmable Logic Controller edition machine parameter that liquidates is regulated, and shortens developing time during adjusting or reduces the concentration of development soup or reduce the temperature of development working environment, and wherein reducing the development operating temperature is main operational means; After reduction development operating temperature does not reach requirement, then adopt the concentration that shortens developing time or reduction development soup to carry out compounding practice; If collection result is bigger than preset development threshold; Explain that plate is under-exposed; The server controls Programmable Logic Controller liquidates and prolongs developing time when edition machine is regulated or increase the concentration of development soup or the temperature that raising is developed; Wherein improving the development operating temperature is main operational means, after raising development operating temperature does not reach requirement, then adopts the concentration that increases developing time or raising development soup to carry out compounding practice.
The above; Be preferable case study on implementation of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technical scheme of the present invention.
Claims (6)
1. the automatic detection control method of a printing plate is characterized in that, on the version machine, is installing collector additional; After the PS plate develops end, the detected icon that is preset on the plate is gathered; Gather its dot density, through server detected dot density is detected then, dot density value with preset is consistent to detect it; If inconsistently then regulate according to the liquidate parameter of edition machine of testing result by server; Change and dash the development conditions of version machine to plate, make the development of plate reach preset requirement, its concrete steps are:
(1) on plate, places the site test pattern;
(2) dash the developed dot density of the detected icon that of version machine by the collector collection;
(3) collector is transferred to server with collection result, and server compares dot density that collects and pre-set development threshold, if inconsistent, explains that the development of plate is undesirable;
(4) according to the comparative result of step (3), develop undesirable the time at plate, alarm gives the alarm, and server changes duty over to;
(5) according to the comparative result of step (3), time, development temperature or the solution level of the printing down of version machine dashed in the server controls adjustment, makes the development of follow-up plate reach pre-conditioned.
2. an automatic detection and control system that adopts the printing plate of the said method of claim 1; It is characterized in that, said system comprise the server (3) that dashes a version machine (1), be fixed on the collector (2) that dashes on the version machine, be fixed on the alarm (6) that dashes version machine top, be connected with alarm with collector respectively be fixed on dash on edition machine and with serve its Programmable Logic Controller that is connected (4).
3. the automatic detection of printing plate according to claim 2 and control system is characterized in that, said collector is an optical capturing equipment.
4. the automatic detection of printing plate according to claim 3 and control system is characterized in that, said collector is video camera or scanner.
5. the automatic detection of printing plate according to claim 2 and control system is characterized in that, said server is a computer.
6. the automatic detection of printing plate according to claim 2 and control system is characterized in that, said Programmable Logic Controller is the PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101160526A CN102632686A (en) | 2012-04-19 | 2012-04-19 | Method and system for automatically detecting and controlling printing plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101160526A CN102632686A (en) | 2012-04-19 | 2012-04-19 | Method and system for automatically detecting and controlling printing plate |
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| CN102632686A true CN102632686A (en) | 2012-08-15 |
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| CN2012101160526A Pending CN102632686A (en) | 2012-04-19 | 2012-04-19 | Method and system for automatically detecting and controlling printing plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786647A (en) * | 2015-04-22 | 2015-07-22 | 安徽安泰新型包装材料有限公司 | Handheld digital detector for forme dots and detection method thereof |
| CN104949626A (en) * | 2015-06-09 | 2015-09-30 | 河南省新斗彩印刷有限公司 | Offset printing plate dot reduction density measuring method |
| CN107490581A (en) * | 2017-08-01 | 2017-12-19 | 中铝瑞闽股份有限公司 | A kind of detection method of CTP version bases surface underworld defect |
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| EP1341047A2 (en) * | 2002-03-01 | 2003-09-03 | Creo Inc. | Apparatus and methods for development of resist patterns |
| JP2003276150A (en) * | 2002-03-25 | 2003-09-30 | Dainippon Screen Mfg Co Ltd | Control of work flow for making printing plate |
| CN1669791A (en) * | 2004-03-18 | 2005-09-21 | 海德堡印刷机械股份公司 | Visual inspection apparatus for exposed forme |
| WO2009123691A1 (en) * | 2008-03-31 | 2009-10-08 | Eastman Kodak Company | A system for plate imaging and processing |
| US20110079161A1 (en) * | 2009-10-07 | 2011-04-07 | Shay Amsili | Plate monitoring system |
| CN102145571A (en) * | 2010-02-08 | 2011-08-10 | 杜也兵 | Method for monitoring printing plate paper during platemaking of thermosensitive platemaking printing machine |
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2012
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1341047A2 (en) * | 2002-03-01 | 2003-09-03 | Creo Inc. | Apparatus and methods for development of resist patterns |
| JP2003276150A (en) * | 2002-03-25 | 2003-09-30 | Dainippon Screen Mfg Co Ltd | Control of work flow for making printing plate |
| CN1669791A (en) * | 2004-03-18 | 2005-09-21 | 海德堡印刷机械股份公司 | Visual inspection apparatus for exposed forme |
| WO2009123691A1 (en) * | 2008-03-31 | 2009-10-08 | Eastman Kodak Company | A system for plate imaging and processing |
| US20110079161A1 (en) * | 2009-10-07 | 2011-04-07 | Shay Amsili | Plate monitoring system |
| CN102145571A (en) * | 2010-02-08 | 2011-08-10 | 杜也兵 | Method for monitoring printing plate paper during platemaking of thermosensitive platemaking printing machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786647A (en) * | 2015-04-22 | 2015-07-22 | 安徽安泰新型包装材料有限公司 | Handheld digital detector for forme dots and detection method thereof |
| CN104786647B (en) * | 2015-04-22 | 2017-12-12 | 安徽安泰新型包装材料有限公司 | Hand-held printing plate site digital test machine and its detection method |
| CN104949626A (en) * | 2015-06-09 | 2015-09-30 | 河南省新斗彩印刷有限公司 | Offset printing plate dot reduction density measuring method |
| CN107490581A (en) * | 2017-08-01 | 2017-12-19 | 中铝瑞闽股份有限公司 | A kind of detection method of CTP version bases surface underworld defect |
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Application publication date: 20120815 |