CN103832068A - Method for carrying out real-time correction and compensation on printing length of carton printing machine - Google Patents
Method for carrying out real-time correction and compensation on printing length of carton printing machine Download PDFInfo
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- CN103832068A CN103832068A CN201210475925.2A CN201210475925A CN103832068A CN 103832068 A CN103832068 A CN 103832068A CN 201210475925 A CN201210475925 A CN 201210475925A CN 103832068 A CN103832068 A CN 103832068A
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Abstract
The invention provides a method for carrying out real-time correction and compensation on the printing length of a carton printing machine. According to the method, the advantages of high accuracy and high dynamic response of a servo control system are utilized to overcome the defects in the prior art. Through the method, in the printing process, when deviation generates between an actual printing length and a target printing length, the correction and compensation amount can be directly input into the carton printing machine for carrying out dynamic interpolation and correction, an operator does not need to stop the machine to replace a printing plate or remanufacture the printing plate, and consequently the printing quality and the printing effect are guaranteed, the production efficiency is improved and the production cost is reduced. According to the technical scheme, a servo driver module, a servo motor, an HMI (touch screen), a PLC, a Profibus-DP communication bus and a driver optical fiber web SERCOS are adopted in the method.
Description
Technical field:
The present invention relates to a kind of cardboard box printing machinery field, be specifically related to the method for the printing length correction-compensation of the printing element of carton press.
Background technology:
Cardboard box printing is after allowing version seal be stained with ink by carton press, the pattern on forme to be printed on corrugated board.A carton press, a general configurable 1-7 printing element (can a chromatography 1-7 color), and each printing element can only hang a width forme and print a kind of color, just can print out the pattern of colorful fineness by the chromatography of many groups printing element.
Forme is to carry out designing and making according to processing printed pattern, often a printed patterns has a set of forme composition comprising more than 1 group, in the time of print production, will organize forme more and carry out chromatography, the machining accuracy of forme is high, the printing quality of chromatography is all right, because cannot ensure zero error in the manufacturing process of printing, so also can there is certain trueness error in accurate forme again, add forme roller equally also to have trueness error and make a set of forme in printing process, there will be overprint error, in the time printing the product of high-quality, cardboard box printing machinery is originally to solve the overprint error that a set of forme occurs from equipment, can only again make forme, thereby increase printing cost, can not realize high efficiency production.
Summary of the invention:
The object of the invention is to utilize the high accuracy of servo-control system and the advantage of high dynamic response to overcome the shortcoming of above-mentioned prior art; provide the one can be in printing process; in the time that deviation appears in the size of actual printing length and target printing length, can directly input correction-compensation amount and carry out at random dynamic interpolation correction; do not need to shut down and change forme or again make forme; thereby guarantee quality, the effect of printing, the method for the real-time correction-compensation of a kind of carton press printing length that reduces production costs of enhancing productivity.
Object of the present invention can be achieved through the following technical solutions: the method for the real-time correction-compensation of a kind of carton press printing length includes servo-driver module, servomotor, Human machine interface (touch-screen), programmable controller (PLC), Profibus-DP communication bus and driver optical networking SERCOS.
The performing step of control method of the present invention:
Control method of the present invention is by utilizing the high accuracy of servo-control system and the advantage of high dynamic response; in printing process; in the time that deviation appears in the size of actual printing length and target printing length, can directly input correction-compensation amount and carry out at random dynamic interpolation correction; do not need to shut down and change forme or again make forme; thereby guarantee quality, the effect of printing, enhance productivity and reduce production costs.
Brief description of the drawings:
Fig. 1 is the control program flow chart of the method for the real-time correction-compensation of a kind of carton press printing length of the present invention.
Fig. 2 is the printing length error schematic diagram of the method for the real-time correction-compensation of a kind of carton press printing length of the present invention.
Fig. 3 is that schematic diagram is calculated in the compensation of the method for the real-time correction-compensation of a kind of carton press printing length of the present invention.
Fig. 4 is the theory diagram of the method for the real-time correction-compensation of a kind of carton press printing length of the present invention.
Specific implementation method:
Referring to Fig. 1---shown in Fig. 4, the method for the real-time correction-compensation of a kind of carton press printing length, the following steps that implement of the present invention:
Step 1: enable key zone and main website plc communication contacts referring to parameters input area, debugging functions in man-machine interface described in Fig. 1, Fig. 4, by PLC, adjustment parameter and control signal are dealt into motion controller, and control servo-driver and carry out corresponding function, motion controller is connected the status data of communicating by letter and upload driver and servomotor to host computer man-machine interface with host computer man-machine interface and the PLC of main website by Profibus-DP network, printing roller and impression roller be drive control separately all.
Step 2: referring to Fig. 2 according to length compensation computing formula:
Length correction compensating parameter=360 ° × Corract/Corrmax
Corract: actual correction offset (measuring deviation value ± Δ L)
Corrmax: the maximum modified value of permission
Note: the maximum modified value that forme length compensation allows is 1% of forme effective coverage.
The motion logic control of every group of printing element printing roller of the CPU inediting in motion controller module (2) in advance and printing length compensation operation functional block program.In conjunction with application cam curve control menu, it is a special cam curve operational mode that the circumference operation of printing roller (2) is made, so that (360 °) accurately control printing roller (2) position and rotating speed in each swing circle.
Step 3: referring to Fig. 1---Fig. 3 is when in machine print production, cardboard transmits printing between printing roller (2) and impression roller (3), when the error (± Δ L) that has printing element and cause because of the trueness error of forme (1) and the trueness error of printing roller (2) actual printing length (L) with the inconsistent appearance of target printing length (Lm), in the time that this error exceedes the size range of Product Precision requirement, activate the function button signal that need to carry out length correction compensation adjustment of this printing element by man-machine interface.
Motion controller is being received the enable command signal of length correction compensation, just activation calls printing length compensation operation functional block program, the printing length correction-compensation value (± Δ L) that operating personnel obtain at the direct input measurement of man-machine interface and the effective length value of this forme, send in motion controller by Profibus-DP network.
Motion controller is the effective length value in conjunction with this forme according to the printing length correction-compensation value (± Δ L) of inputting automatically, by the logical operation of length compensation calculation function piece, the correction calculating is converted in the cam curve control function block of rotation speed change amount (± Δ N) embedding printing roller by servo-drive system again.
When rotation speed change amount is when (+Δ N), be equivalent to the to have superposeed rotation speed change amount (+Δ N) of forward on print direction makes printing roller accelerate rotation with the transmission speed higher than cardboard (spindle speed) in printing effective coverage, the pattern length size being now printed on cardboard is shortened, the size shortening equals the printing length correction-compensation value (± Δ L) of input, thereby reach the actual printing length object consistent with target printing length, in ensureing weekly, synchronize with main spindle's all the time, printing roller turn over behind printing effective coverage, arrive without printing zone in while approaching zero point (or) automatic retarding is returned to the position of realizing synchronous main shaft.
In the time that rotation speed change amount is negative value (Δ N), the rotation speed change amount (Δ N) that is equivalent to superpose reverse on print direction makes to slow down and rotate with the transmission speed lower than cardboard (spindle speed) in printing roller effective coverage, and the pattern length size being now printed on cardboard is stretched.And the size stretching equals the printing length correction-compensation value (± Δ L) of input, reach the actual printing length object consistent with target printing length.Equally, for ensureing in weekly to synchronize with main spindle's all the time, printing roller while approaching zero point (or) in turning over and arriving without printing zone behind printing effective coverage will accelerate to follow the position of realizing synchronous main shaft automatically.So go round and begin again, make printing roller be in a kind of new cam curve operational mode.
By above-mentioned stretching to printing length or shorten interpolation operation, the printed patterns that finally reaches all unit in whole printing zone all mutually chromatography accurately together, thereby obtain the print product of high-quality.
Revise under the control method of printing length at this, dynamically solved the press quality problem that forme mismachining tolerance causes, reach the object of enhancing productivity and reducing costs.
The above, be only the preferred embodiment of the real-time printing length correction-compensation method of this practicality invention, not this practical invention application method done to any pro forma restriction.Any those of ordinary skill in the art, do not departing from the real-time printing length correction-compensation method of this practicality invention similar in the situation that, all can make many possible variations and modification with this practicality being invented to real-time printing length compensation method in the method for above-mentioned announcement and technology, or be revised as the equivalent embodiment of equivalent variations.Do not depart from the content of the real-time printing length correction-compensation method of this practicality invention therefore every; the equivalence of doing according to shape, structure and the principle of the real-time printing length correction-compensation method of this practicality invention changes, and all should be covered by the protection domain of the real-time printing length correction-compensation method of this practicality invention.
Claims (2)
1. the method for the real-time correction-compensation of carton press printing length includes servo-driver module, servomotor, Human machine interface (touch-screen), programmable controller (PLC), Profibus-DP communication bus and driver optical networking SERCOS.
2. the performing step of control method of the present invention:
Step 1. together accesses Human machine interface, PLC, motion controller on Profibus-DP communication bus, PLC is as the operation of the communication of communication main station control bus and motion controller, and motion controller connects to form driving network by the servo-driver of optical networking SERCOS and unit.Man-machine interface sends and adjusts the operation of parameter and watch-dog as host computer, and in man-machine interface, edit each printing element length compensation parameter data input frame and enable ACK button.
Step 2. is according to the motion control pattern of printing roller and length compensation computing formula, the motion control function piece of printing roller and the formula procedure piece of printing length compensation calculating that in motion controller module, edit in advance every group of printing element, call to facilitate at any time.Printing roller adopts servomotor drive, and drive that need be other in order to the roller platen of cardboard transmission (independent servo or gear drive all can) completes.
Step 3. is in the time carrying out print production, while occurring that if any certain printing element actual print size and target call are not inconsistent (printed dimensions deviation Lm-L> required precision), activate the printing length correction interpolation function of application motion controller inside by man-machine interface, and by measure correction-compensation value (± Δ L) be directly inputted to motion controller and carry out the computing of printing length compensation logic, then controlling servo-driver follows according to the result of calculating, accurately control the rotating speed (increase or reduce) printing in each cycle of roller, realize stretching or the shortening of printing length with a kind of operational mode of cam curve, all chromatography is accurately together to guarantee printed patterns all in whole effective printing zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210475925.2A CN103832068A (en) | 2012-11-21 | 2012-11-21 | Method for carrying out real-time correction and compensation on printing length of carton printing machine |
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| CN201210475925.2A CN103832068A (en) | 2012-11-21 | 2012-11-21 | Method for carrying out real-time correction and compensation on printing length of carton printing machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309298A (en) * | 2014-10-10 | 2015-01-28 | 杭州数创自动化控制技术有限公司 | Overdying error transmission and acquiring system |
| CN107175888A (en) * | 2017-07-19 | 2017-09-19 | 蚌埠市奥特纸箱机械有限公司 | A kind of servomotor driving phase adjustment and on-line automatic compensation mechanism |
| CN109311312A (en) * | 2016-06-24 | 2019-02-05 | 艾美株式会社 | Printing deviation modification method in printing equipment |
| CN111823739A (en) * | 2020-07-16 | 2020-10-27 | 陕西北人印刷机械有限责任公司 | Control method for continuous operation switching order of CI (compact element) flexographic printing equipment |
| CN114104786A (en) * | 2021-12-13 | 2022-03-01 | 南昌印钞有限公司 | Automatic correction system and method for paper conveying time of paper conveyor |
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| CN1693073A (en) * | 2004-05-05 | 2005-11-09 | 鲍勃斯脱股份有限公司 | Method and device for initial adjustment of the register of the engraved cylinders of a rotary multicolour press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109311312B (en) * | 2016-06-24 | 2020-07-14 | 艾美株式会社 | Printing deviation correction method in printing device |
| CN107175888A (en) * | 2017-07-19 | 2017-09-19 | 蚌埠市奥特纸箱机械有限公司 | A kind of servomotor driving phase adjustment and on-line automatic compensation mechanism |
| CN111823739A (en) * | 2020-07-16 | 2020-10-27 | 陕西北人印刷机械有限责任公司 | Control method for continuous operation switching order of CI (compact element) flexographic printing equipment |
| CN111823739B (en) * | 2020-07-16 | 2022-03-04 | 北人智能装备科技有限公司 | Control method for continuous operation switching order of CI (compact element) flexographic printing equipment |
| CN114104786A (en) * | 2021-12-13 | 2022-03-01 | 南昌印钞有限公司 | Automatic correction system and method for paper conveying time of paper conveyor |
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Application publication date: 20140604 |