CN101024329A - Control of a printing press using a torsion model - Google Patents
Control of a printing press using a torsion model Download PDFInfo
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- CN101024329A CN101024329A CNA2007100849032A CN200710084903A CN101024329A CN 101024329 A CN101024329 A CN 101024329A CN A2007100849032 A CNA2007100849032 A CN A2007100849032A CN 200710084903 A CN200710084903 A CN 200710084903A CN 101024329 A CN101024329 A CN 101024329A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0009—Central control units
Abstract
A method and an apparatus control a printing press having a plurality of printing units, a plurality of cylinders which are coupled mechanically to one another and a control computer for controlling at least one drive motor which drives the mechanically coupled cylinders. A torsion model is stored in the machine computer for describing the torsion state of the cylinders in the printing press which are rotatably coupled mechanically to one another, as a function of at least one measurable operating parameter or at least one variable of the printing press which is known to the machine computer. A control of the printing press is performed by the control computer on the basis of the values which are calculated by the torsion model.
Description
Technical field
The present invention relates to a kind of apparatus and method of controlling printing machine, printing machine has a plurality of printing equipments, a plurality of cylinder that mechanically is coupled to each other and a control computer that is used to control at least one CD-ROM drive motor, these cylinders that mechanically connect of drive motor.
Background technology
Rotary sheet-fed printing presses in the offset printing has a plurality of printing equipments, and they will print image respectively and be applied on the stock with the color separation (Auszug) of a definite color.Usually, have four printing equipments at least, so that can print primary colors red, Huang, indigo plant and black.But, other printing equipment can be set also for special look such as gold or silver color and so on.In addition, can utilize the special glazing device that is connected after the printing equipment that glazing liquid is applied on the stock.In addition, but the positive and negative of rotary sheet-fed printing presses printing material processing, so the printing equipment and the glazing device of double amount will be set in this case.This is utilizing multiple special look and subsequently glazing device to carry out in the printing machine of printed on both sides, just causes the quantity of printing with glazing device quite big; Therefore, now in packages printing 16 printings and glazing device no longer be rare.
Because all printing equipments are the color separation double exposures, so importantly, this double exposure wants alignment accurately to carry out, and that is to say, deviations does not appear between each color separation on the stock as far as possible, because otherwise will allow the observer of printing finished product find out image fault.And in order to realize this alignment accuracy when the different color separation of double exposure, each printing and glazing device in the rotary sheet-fed printing presses are connected to each other by gear train usually.In this case, the plate cylinder of printing machine, blanket cylinder, impression cylinder, transfer cylinder and upset cylinder mechanically are coupled to each other, and are driven jointly by one or more CD-ROM drive motors.Mechanically the cylinder of Lian Jieing shows as a system that rigidity is limited at this, so just torsion phenomenon occurs under certain load.In addition, in the printing equipment of each sheet-fed offset press, be provided with and be used to carry out the adjusting possibility that alignment is regulated, so that can proofread and correct the register partial difference between each color separation where necessary, because deviation is also relevant with print speed printing speed and be not quite similar when each print job.The result shows, the adjusting of alignment is not only relevant with print speed printing speed but also relevant with other operational factor of the torque of drive unit or printing machine.
Known a kind of method that is used for reducing the registration error of multicolour offset press from DE3148449C1, the printing equipment of this multicolour offset press is to be driven by a public motor, and has one and carry out the device that alignment is regulated.This invention has been adjusted in torque that the CD-ROM drive motor by printing machine provides or parameter that characterizes this torque and the printing machine to keeping the functional cohesion of the required alignment of flawless alignment between regulating.Functional cohesion between the alignment of torque and necessity is regulated is stored in the computer of printing machine.Between the continuous operating period of printing machine, the torque that monitoring is provided by CD-ROM drive motor, and carry out alignment according to current torque and regulate.At this, getting in touch between torque and alignment are regulated detected when the printing machine test running and stored with the form of truth table, or carries out producing the right calculating of numerical value from torque and alignment adjusting.Also there is the truth table that in the middle of printing operation, can consult and use in this case.The advantage of this method is, need not expensive control computer, because only need the torque and the truth table of instantaneous measurement are compared, and then extracts and use corresponding alignment regulated value in the control computer.But there is very big defective in this method, that is, can not react to the variation of carrying out in the printing machine, after printing machine is consigned to the user, because the truth table that is stored in the printing machine not will consider this variation.
Summary of the invention
Therefore, the objective of the invention is to, a kind of apparatus and method are provided, utilize its cover parasexuality that can further improve in the offset press also can during printing operation, react the variation of printing machine operational factor.
According to the present invention, a kind of method that is used to control printing machine has been proposed, this printing machine has a plurality of printing equipments, a plurality of cylinder that mechanically is coupled to each other and a control computer that is used to control at least one CD-ROM drive motor, the cylinder that this drive motor mechanically connects, wherein, in the machine computer, store a torsion model, be used for according at least one measurable operational factor of printing machine or the known parameter of at least one machine computer describe printing machine rotatably, the twisting states of the cylinder that mechanically is coupled to each other; Carry out the control of printing machine in the value that calculates by torsion model by the control computer based.
According to the present invention, a kind of printing machine has also been proposed, it has a plurality of printing equipments, at least one CD-ROM drive motor and a control computer, and wherein, at least a portion cylinder in the printing machine mechanically is coupled to each other.The equipment control device of printing machine is set for: by means of being stored in the torsion model of control in the computer, proofread and correct register partial difference according to the variation of the known parameter of at least one measurable operational factor of printing machine or at least one machine computer.
Set forth particularly advantageous configuration of the present invention below.
The present invention can be used for all printing machines, and a plurality of printing cylinders, blanket cylinder, plate cylinder or transfer cylinder mechanically are coupled to each other in these printing machines.Mechanically connecting the variation that causes one of cylinder must also can exert an influence to other cylinder that connects with it.Therefore, the present invention is applicable to sheet-fed offset press fully, and all cylinders in this printing machine or at least one most of cylinder are by mechanically the coupling arrangement such as the continuous gear train or the longitudinal axis interconnect.In addition, printing machine of the present invention has at least one CD-ROM drive motor and a control computer, the cylinder that drive motor mechanically connects, and the control Computer Storage has the mathematics torsion model of form of software, is used for describing at printing machine control computer the twisting states of the cylinder that rotatably mechanically is coupled to each other.This torsion model is a kind of algorithm, even if it also can recomputate each cylinder that is coupled to each other mutual machinery rotation and position according at least one measurable operational factor or the known parameter of control computer consistently the in service of printing machine.Described operational factor and known parameter for example can be being provided with etc. of ink-covered area opening in the power output, operating temperature, the printing equipment of use, the parts that are connected, printing equipment of actual torque, the drive unit of described one or more drive units.Based on by the value of torsion model, can make the control computer intervene the control of printing machine in the calculating of printing machine run duration.This method has big advantage,, also can consider the variation of printing machine twisting states during the printing operation that is, and these for example change because the change of environmental condition such as temperature and air humidity produces.In addition, printing machine run duration can be easy near or inaccessible, so also will on the twisting states of the cylinder that is coupled to each other, change thus.If the corresponding operational factor of printing machine detects by sensor and with the machine computer that it importing has torsion model, so just can calculate corresponding value with the setting of correction printing machine and start corresponding adjustment process.
In first configuration of the present invention, stipulate like this: at least one parameter that characterizes the power expense of described at least one CD-ROM drive motor is measured as operational factor, and it is flowed to the control computer of printing machine.The power expense of printing machine for example can detect by the current sinking of measuring CD-ROM drive motor.The electric current of being surveyed is big more, and the electrical power that CD-ROM drive motor obtains from power network is just big more.The power expense of CD-ROM drive motor for example can change by changing print speed printing speed.If print speed printing speed improves, the power expense of CD-ROM drive motor is inevitable so also just changes, because for higher print speed printing speed, correspondingly also just needs bigger driving power.But even if under the identical situation of print speed printing speed maintenance, the power expense of printing machine also can for example change because be heated.But, the variation of printing machine power expense can not remain unchanged to being provided with under the situation of not having influence.Under the situation of the power expense of the CD-ROM drive motor of considering to be surveyed, can calculate influence by the torsion model in the machine computer to the printing machine twisting states.Then, can make corresponding variation to the setting of printing machine by the control computer.
In addition, regulation like this: measured by the torque in described at least one CD-ROM drive motor feed-in cylinder as operational factor, and flow to the control computer of printing machine.Except the power expense of measuring CD-ROM drive motor, perhaps alternatively, also can detect the torque in the feed-in cylinders of printing press.Torque detects equally and can be undertaken or be undertaken by additional torque sensor by CD-ROM drive motor, the torque on the torque on each cylinder of torque sensor measurement printing machine or the gear of gear train.The torque value that is detected is transported to the torque model in the machine computer of printing machine equally, then just can be there according to the twisting states of the torque calculation printing machine that detects respectively.Also can on printing machine, carry out the adjusting of corresponding necessity thus by the control computer.
In particularly advantageous configuration of the present invention, stipulate like this: in printing equipment, carry out the adjusting of alignment and/or the adjusting of feeding device by means of the value of calculating by torsion model.If have glazing device, also can regulate the cover parasexuality in this glazing device naturally.As noted earlier, when the different color separation of double exposure, the cover parasexuality is responsive especially for realizing the higher printed quality, and it is related to the change of printing machine running status.This especially is fit to the variation of the twisting states of cylinder connected to one another in the printing machine.Therefore gear train will be lax when heating and during carrying out print job, and this just causes the alignment setting to change to some extent.In fact, the printing worker can be known the alignment setting in the following manner, promptly at first is by pulling test printed sheet and note the variation of alignment there, or the register control supervising device that will adjust register partial difference automatically is installed in the printing machine.But such register control monitoring cost is expensive and be not suitable for every kind of printing machine.In addition, corresponding special measurement markers must be set on stock, this measurement markers correspondingly will take up space on stock, and this space can be used for printing image self in other cases.But, utilize torsion model to recomputate the twisting states in the printing machine consistently immediately and in each printing equipment or glazing device, to carry out the alignment adjusting based on this as the power expense or the torque variation that change according to operational factor.In this case, the register control that need not the cost costliness is regulated, and it is just enough to carry out alignment control according to the value of calculating by torsion model.If the printing worker needs, just can at first on the screen of printing machine, show the value of the change that alignment is regulated, so printing worker self just can determine: be manually to carry out the alignment adjusting or allow printing machine carry out alignment regulating by him.Under latter event, the printing worker can carry out alignment by the control computer of printing machine automatically and regulate and simplification work.In this case, the printing worker needn't worry about the examination that alignment is regulated right value.Except alignment is regulated, also can on paper feeding device, carry out the adjusting of feeding device.When running status changed, this adjusting had guaranteed to transmit paper edge in the grippers preferably with respect to the reference state tracked near machine middle part or main drive on the reference cylinder.This has just improved the repeatability that printed sheet transmits by relatively giving prominence to reference to the paper on the cylinder, and wherein the outstanding nature of the paper in the printing equipment of front also changes.In the following description, except alignment is regulated, also relate to the adjusting of feeding device.
Advantageously, can stipulate like this: printing machine has a measurement mechanism that is used to monitor alignment, and when detecting register partial difference by means of torsion model in the control computer, carries out the correction that alignment regulates and/or the adjusting of feeding device in printing equipment.In this case, also be provided with the adjusting of alignment except controlling, its mode is, detects the register mark on the stock in printing machine or on test desk independently, and it is flowed to the control computer of printing machine.But, in order to improve the adjustment that alignment is regulated, when each printing equipment of alignment or glazing device, equally detected deviation is flowed to the torsion model in the printing machine control computer, so when the control computer calculates the adjusting parameter of the register partial difference that is used for proofreading and correct, can together consider the twisting states of printing machine.Regulate than the alignment of routine, this has had tangible improvement, because the correction of register partial difference can implement targetedly, so just need less regulating step proofread and correct register partial difference by the control computer.The minimizing of regulating step but causes register partial difference to be adjusted apace when but, proofreading and correct register partial difference.This can produce the stock of the less corresponding register partial difference of discerning each color separation thereon again, and maculature has also just reduced like this.
In addition, advantageously, stipulate like this: alignment is regulated and/or adjusting is correctly set at least one running status of selecting of printing machine and alignment is regulated and/or feeding device is regulated the correct setting value and the running status affiliated, that select of feeding device are stored in the control computer of printing machine with interrelating.The running status of selecting for example can be the machines configurations determined or definite print speed printing speed.In this case, the printing worker can oneself set the alignment in each printing equipment in adjustment operation (implementing with less print speed printing speed) is installed, up to meeting its ideal results.In this case, the print speed printing speed of selecting is to regulate the speed.In this way, just can be in the influence of correction down of regulating the speed from forme exposure, forme tensioning process and machine twisting states.If the result meets printing worker's ideal, the printing worker just can make it the control computer of printing machine made and reply by corresponding input.By this answer signal, start storing process, in this storing process, the alignment regulated value of setting, the driving power of actual consumption or torque and other additional data are stored in the printing machine control device.Afterwards, the printing worker can be transformed into printing machine printing operation and reach full machine speed.According to the current machine speed that reaches, the printing machine control device calculates corresponding alignment regulated value by means of torsion model with at the alignment regulated value of storing down of regulating the speed, even if also can carry out flawless printing so that guarantee under full machine speed.Therefore, if the print speed printing speed of printing machine changes, just need not carry out the artificial tracking that the printing worker implements usually under other situation to the alignment regulated value.This just can accomplish: when print speed printing speed changes, regulate the correction that the alignment when carrying out the print speed printing speed change is automatically regulated under the situation of considering torsion model based on the alignment of correctly setting at the print speed printing speed of selecting.As long as the printing worker machines when other speed, just carry out the corresponding correction that alignment is regulated by means of torsion model, the printing worker needn't intervene wherein.
In a configuration of the present invention, regulation like this: by detecting operational factor, a plurality of parts or the printing equipment of printing machine exerted an influence.As already mentioned, such operational factor can be the power expense or the torque expense of printing machine.Regulate for the alignment that can correctly implement in each printing equipment or the glazing device, must detect corresponding register partial difference by sensor usually.This no longer is essential when use has the control computer of implemental torsion model because enough be that the power expense that for example is printing machine by means of a unique detection limit just can exert an influence to a plurality of printing equipments of printing machine.Because torsion model is considered and has been described the twisting states in each printing equipment of printing machine and even the connection of cylinder, so considered the effect that alignment is regulated in each printing equipment in the lump.By torsion model, can calculate the effect of operation parameter such as power expense, on all printing equipments or glazing device so equipment control device just can be proofreaied and correct accordingly by the alignment adjusting device to all printing equipments of printing machine or glazing device.
In addition, the twisting states of printing machine can detect on measuring technique by means of sensor at least two positions.At least two positions in the printing machine are provided with sensor, and they for example reverse additionally to measure by differential between the torque that applies respectively or the sensor and reverse.Measured value can be received in the torsion model, so that check issuable correction demand at least two positions at this point.In this case, by means of torsion model, not only calculate measured value, and this torsion model also is used to verification, this has just improved accuracy.Measured value can consider to be used to insert therebetween value by torsion model.The measured value of measuring by means of sensor also can be used for making operation torsion model optimization therebetween.In this case, the parameter by making torsion model consistently or correspondingly adaptive with the time interval of determining, measured value is considered by the mode with the control of study (lernend).
Advantageously stipulate like this: the torque distribution in the printing equipment of printing machine is set changeably, or carries out according to machines configurations.Alignment in each printing equipment was regulated, register adjustment also can carry out like this, that is, the torque distribution in each printing equipment for example changes according to print speed printing speed.This can be undertaken by the brake in the printing equipment, maybe additional CD-ROM drive motor can be set, and can change torque distribution by the latter.Verified particularly advantageous be that the torque distribution of CD-ROM drive motor in printing equipment is to carry out according to the current configuration of printing equipment.Whether in addition, the torque expense in each printing equipment also depends on: use how many printing equipments on earth, for example work in front printing or back face printing and what kind of the ink-covered area opening is respectively for current print job.All these configurations relevant with current print job cause the torque expense in each printing equipment to change.And this expense also can be calculated by means of torsion model, so that improve the printing quality on the stock thus.
In another configuration of the present invention, stipulate like this:, when printed on both sides, after the upset cylinder, regulate the position deviation of proofreading and correct about the stock positive and negative by alignment by means of torsion model.And, in printed on both sides, with just the same in pure printing, a twisting states appears in printing machine under every kind of print speed printing speed.If this twisting states changes because of the power expense or the torque expense changes, also can change at this so as alignment takes place in pure printing.But, in printed on both sides, the alignment accuracy between the printing image on the stock positive and negative also can additionally change.But, should not produce registration bias as far as possible between the printing image on the positive and negative, because otherwise for example just can't be under not having to cut the situation of a part with the side cut of stock non-flanged ground owing to the diverse location in positive printing image or the back face printing image.Therefore, wish that also the registration bias between the positive and negative is as far as possible little.This deviation also can be calculated by means of the torsion model in the equipment control device, and carries out corresponding the correction thus in printing machine.
In a particularly advantageous configuration of the present invention, stipulate like this: the twisting states of the change of printing machine is calculated, calculate the register partial difference that stock overturn and exists before the cylinder by the twisting states that calculates in printing machine, the printing equipment after the upset cylinder is applied the alignment that has with respect to the twice value of the paper edge loss of the printing equipment before the upset regulate with the correction register partial difference.In this case, by the registration bias between printing equipment after the turning device and the correction of the alignment adjusting device on the glazing device stock positive and negative.By means of torsion model, calculate actual twisting states, obtain the paper edge loss that stock adds up to the printing equipment before passing through to overturn thus.So, calculate corresponding alignment regulated value by means of torsion model just as in pure printing.For printing equipment and the glazing device after the turning device, double the paper edge loss ground of determining and proofread and correct all alignment regulated values, so registration bias between the printing image of positive and negative, just no longer occurs.Therefore, also just can avoid registration bias in the printed on both sides effectively by means of the present invention.
Another favourable configuration of the present invention is that the calibration test by means of individual machine obtains by improving model result.Because the electric current/torque characteristic that is the flexible or drive unit of gear train all can have little deviation, so the indivedual results on machine can improve like this, promptly, before consigning to the user, printing machine carries out standardized printing test under ideal conditions, by means of the value that obtains thus the conclusion of torsion model is improved subsequently, for example converted.Under the simplest situation, conversion coefficient is superimposed upon on all values to proofread and correct at this.This calibration only needs once.
Description of drawings
Below with reference to several accompanying drawings the present invention is described in detail and explains, wherein:
Fig. 1 sheet-fed offset press, wherein the alignment in printing equipment and the glazing device is regulated and is controlled by the torsion model that is stored in the equipment control device;
The structure of the equipment control device of printing machine among Fig. 2 Fig. 1;
The chart of the paper edge loss when Fig. 3 carries out printed on both sides in the printing machine with 10 printing equipments.
The specific embodiment
Printing machine 1 shown in Fig. 1, the stock 22 of its processing sheets formula in the offset printing rotary printing.Printing machine 1 has five printing equipments 6 and a glazing device 7.Four printing equipments 6 are used herein to the printing ink that applies four kinds of primary colors Huangs, red, indigo plant and black in the printing of front, and the 5th printing equipment 6 is filled with spot ink such as silver color, gold or similar printing ink.But it is altogether irrelevant that the printing ink that uses in printing equipment 6 is brought into play for function of the present invention.After the 5th printing equipment 6, the printed sheet 22 that is printed is set up the glazing oil reservoir in glazing device 7.The printed sheet of in glazing device 7, having made 22 be booked by means of the grippers bridge in the collection conveyer chain 8 and in delivery device 3 folding and unfolding to collection heap 4.If collection heap 4 has reached its maximum height, just it is taken away and it is reprocessed.Paper feeding device 2 is positioned on that side opposite with delivery device of printing machine 1, and this paper feeding device 2 is from continuing first printing equipment 6 that pile 5 is taken the stock 22 of printed sheet formula away and is transported to printing machine 1 by paumelle 15.The stock 22 of printed sheet formula is sent to glazing device 7 by means of cylinder 9,10 from first printing equipment 6 always.
Each printing equipment 6 has an impression cylinder 10, and the latter and blanket cylinder 13 common formation printing gaps are applied on the printed sheet 22 in the printing gap of printing ink in printing equipment 6.In each printing equipment, printing-ink self is positioned at the inking device 11, and this inking device is according to current print job metering printing-ink.In order to influence the printing characteristic of printing ink, in each printing equipment 6, also have a damping device 12, utilize this damping device can present wetting agent targetedly.So wetting printing-ink is transferred in printing equipment 6 on the plate cylinder 14, and this plate cylinder 14 supports formes and by rolling movement the printing-ink that is applied with transferred on the blanket cylinder 13.Say that in principle all printing equipment 6 structures are identical, but not necessarily must construct like this.In Fig. 1, printed sheet 22 transmits by means of upset cylinder 9 between each printing equipment 6.These upset cylinders 9 allow printing machine 1 to carry out the printed on both sides operation.By means of upset cylinder 9, the printed sheet 22 that is printed can overturn between each printing equipment 6, so no matter to be that front or reverse side can both be printed.
In printing equipment 6 and glazing device 7, each color separation and gloss oil layer are that stack ground prints.For realizing best printing effect, need all color separation and the gloss oil layers of stack printing as far as possible exactly, because otherwise image fault will occur.This stack accurately is positioned at and is called the cover parasexuality in the press.Though the cylinder 10,13,14 in each printing equipment 6 mechanically is coupled to each other, but gear train still has certain elasticity, wherein each cylinder for example the plate cylinder 14 in the printing equipment 6 can on certain limit, rotate relatively to carry out alignment by means of unshowned motor and regulate.Reversing of the cylinder that is coupled to each other 9,10,13,14 of this machine is main relevant with the running status of printing machine.In the case, especially the print speed printing speed effect is great, but also will consider such as the operational factor of environment temperature, air humidity etc.Therefore reversing in printing machine 1 power train can change its state according to service condition.Twisting states is produced by the rigidity and the load of the cylinder 9,10,13,14 that is coupled to each other, and also can slightly reverse each other even if these cylinder degree are little.The twisting states of printing machine 1 directly causes the cover parasexuality on the printed sheet 22 to change.Therefore, when starting printing machine 1, in order to begin a print job, the printing worker at first regulates in the printing equipment 6 the cover parasexuality of gloss oil layer in each color separation and glazing device 7 under the situation of the print speed printing speed of selecting, and this print speed printing speed is significantly less than final speed of production usually.This point is so carried out, and, produces some printed sheets 22 that is, and they are with the naked eye analyzed by means of measuring instrument or magnifying glass by the printing worker subsequently.The register partial difference of determining is regulated by the alignment in each printing equipment 6 and the glazing device 7 and is proofreaied and correct.
Regulate in order to proofread and correct alignment, the printing machine 1 among Fig. 1 has an equipment control device 20, the parts that its control printing machine 1 is all.Equipment control device 20 has a computer, and it for example controls the main CD-ROM drive motor 16 of printing machine 1, is set for the unshowned alignment governor motor in each printing equipment 6 of monitor check and the glazing device 7 in addition.For this reason, the alignment adjusting device in printing equipment 6 and the glazing device 7 communicates to connect 21 by one and is connected with equipment control device 20.Equipment control device 20 is connected with keyboard again with at this unshowned input unit such as screen, so the printing worker just can be arranged to adjust to printing machine 1 according to predetermined value.Therefore, by equipment control device 20, the alignment that the printing worker just can manually carry out in each printing equipment 6 and the glazing device 7 is regulated.If in printing machine 1, have corresponding register sensor, then also can in the adjustment loop of closure, carry out alignment and regulate.But this is optional for function performance of the present invention.
In other words, the invention enables and do not need fully as much as possible regulate to intervene.It relates to a control device, and the latter calculates the register partial difference that occurs at run duration in advance and automatically performs alignment by means of one or more operational factors of printing machine 1 and regulates.
In addition, in the paper feeding device 2 of printing machine 1, has an adjustable feeding device 23.This feeding device 23 is also by 18 controls of machine computer.Feeding device allows printed sheet change in location ± 1mm usually, is exerted one's influence in the printed sheet position in all other the transmission grippers on the cylinder 8,9,10 simultaneously thus.By means of torsion model, also just can what must be regulated as a upset cylinder 9 calculating feeding devices 12, so that in the transmission grippers, have desirable printed sheet position on the reference cylinder of selecting at the reference cylinder.Therefore, provide a possibility of further proofreading and correct by torsion model.
According to the present invention, the torsion model of printing machine 1 is stored in the machine computer 18 with the form of software, and it allows the twisting states according to different calculation of parameter printing machines 1.In the case, operational factor can be by the torque of main CD-ROM drive motor 16 outputs or the power of output, also can be the setting of configuration in each printing equipment 6 of the environment temperature of printing machine 1 or operating temperature and printing machine 1.The result shows that enough is for example to detect the power expense of main CD-ROM drive motor 16 consistently and in machine computer 18 it is transported to torsion model, so that can try to achieve the twisting states of printing machine 1.By means of the twisting states of trying to achieve, can regulate at the alignment in each printing equipment 6 and the glazing device 7 and calculate regulated value, alignment is regulated and is carried out via alignment control device 19.In this way, can proofread and correct the alignment adjusting by means of torsion model according to the operational factor that changes, and the adjusting device of cost costliness needn't be set in printing machine 1.
By means of torsion model, the correct alignment that carries out under low adjustment speed is regulated other print speed printing speed arbitrarily that can be converted to printing machine 1 by the printing worker, so the printing worker just needn't import new alignment regulated value when print speed printing speed changes.
If printing machine 1 is in printed on both sides work in service, then except the cover parasexuality, the unanimity of printing picture position also is that so-called upset registration is also relevant with the twisting states of printing machine 1 on the positive and negative.Printing machine 1 among Fig. 1 can for example move in printed on both sides by this way, that is, stock 22 overturns on the 3rd upset cylinder 9 and is printed reverse side thus in the 4th and the 5th printing equipment 6.In order to realize the registration of printing image on printed sheet 22 positive and negatives, must as in pure printing, on three printing equipments 6, carry out the alignment adjusting.It should be noted that at the 4th and the 5th printing equipment 6 back side is printed here, so register partial difference just produces different influences to registration.By means of the torsion model in the machine computer 18, can calculate the distance of positive printing image, so it is used for regulating the alignment of fourth, fifth printing equipment 6 with respect to printed sheet 22 edges.At this, the paper edge loss double, that calculate of applying printed sheet 22 for upset fourth, fifth printing equipment 6 afterwards is so the printing image on printed sheet 22 positive and negatives is finally accurately folded mutually with regard to registration.
The paper edge loss through printing machine 1 all printing equipments 6 to be distributed among Fig. 3 with 10 look printing machines be that example illustrates.Turning device at this between the 4th and the 5th printing equipment.On vertical axis, describe paper edge loss with respect to first printing equipment.The first paper edge loss occurs in second printing equipment, and at printed on both sides the 4th printing equipment that expands in service always.After the upset, a paper edge gain occurs on the 5th printing equipment, the latter's height is identical with summation on the printing surface of front.This gain is also being expanded up to the tenth printing equipment.In order to eliminate this situation, alignment is regulated and must be worked on the contrary with value shown in Figure 3, that is to say, must carry out reverse alignment and regulate on the printing surface of front, regulates and carry out the forward alignment on the back face printing face.In pure printing, only need on the 9th, ten printing equipments, to carry out forward and proofread and correct, and in second to eight printing equipment, oppositely proofread and correct.Corrected value calculates by torsion model.
Therefore, the present invention can utilize pure control device especially accurately to control cover parasexuality and registration in the rotary sheet-fed printing presses 1, need not to utilize register sensor to carry out the adjusting of cost costliness.Therefore, also just can utilize technology of the present invention to equip the printing machine 1 that has existed simply, so that also can improve its printing work greatly.
The reference number table
1 printing machine
2 paper feeding devices
3 delivery devices
4 collections heap
5 continuous piles
6 printing equipments
7 glazing devices
8 collection conveyer chains
9 upset cylinders
10 impression cylinders
11 inking devices
12 damping devices
13 blanket cylinders
14 plate cylinders
15 paumelles
16 main CD-ROM drive motors
17 driving control devices
18 machine computers
19 alignment control device
20 equipment control devices
21 communicate to connect
22 printed sheets
Can regulate the feeding device of displacement on 23 paper feeding devices
Claims (19)
1. be used to control the method for printing machine (1), this printing machine has a plurality of printing equipments (6), a plurality of cylinder that mechanically is coupled to each other (9,10,13,14) and a control computer (20) that is used to control at least one CD-ROM drive motor (16), the described cylinder (9 that mechanically connects of this drive motor, 10,13,14), it is characterized in that
In machine computer (20), store a torsion model, be used for according at least one measurable operational factor of printing machine (1) or the known parameter of at least one machine computer (20) describe printing machine (1) rotatably, the cylinder (9 that mechanically is coupled to each other, 10,13,14) twisting states; Carry out the control of printing machine (1) based on the value that calculates by torsion model by control computer (20).
2. the method for claim 1 is characterized in that, at least one parameter of power expense that characterizes described at least one CD-ROM drive motor (16) is measured and be fed to the control computer (20) of printing machine (1) as operational factor.
3. method as claimed in claim 1 or 2 is characterized in that, and is measured and be fed to the control computer (20) of printing machine (1) as operational factor by the torque in this at least one CD-ROM drive motor (16) feed-in cylinder (9,10,13,14).
4. as claim 1,2 or 3 described methods, it is characterized in that, by means of the value that calculates by torsion model carry out that alignment in the printing equipment (6) is regulated and/or the paper feeding device (2) of printing machine (1) on the adjusting of feeding device (23).
5. method as claimed in claim 4 is characterized in that, the adjusting of this alignment adjusting and/or feeding device (23) is carried out automatically by the control computer (20) of printing machine (1).
6. as claim 4 or 5 described methods, it is characterized in that printing machine (1) has a measurement mechanism (21) that is used to monitor alignment; And, when in control computer (20), detecting register partial difference, carry out the correction of alignment adjusting in the printing equipment (6) and/or the correction that feeding device (23) is regulated by means of torsion model.
7. the described method of one of claim as described above, it is characterized in that, in the correct setting value that adjusting is correctly set at least one running status of selecting and alignment is regulated and/or feeding device (23) is regulated of alignment adjusting and/or feeding device (23) and the control computer (20) that running status affiliated, that select is stored in printing machine (1) with interrelating.
8. method as claimed in claim 7 is characterized in that, this running status of selecting is the print speed printing speed of selecting, especially the print speed printing speed when the adjustment of printing machine (1).
9. method as claimed in claim 8, it is characterized in that, when print speed printing speed changes, considering under the situation of torsion model based on regulating at the correct alignment of setting of the print speed printing speed of selecting and/or the adjusting of the correct setting of feeding device (23), carrying out alignment regulate and/or feeding device (23) regulate the correction of print speed printing speed when changing.
10. the described method of one of claim as described above is characterized in that, detects the twisting states of printing machine (1) at least two positions on measuring technique by means of sensor.
11. the described method of one of claim is characterized in that as described above, by detecting operational factor, a plurality of parts (7,11,12) or the printing equipment (6) of printing machine (1) is exerted an influence.
12. the described method of one of claim is characterized in that as described above, the torque expense in the printing equipment (6) of printing machine (1) can be regulated changeably.
13. method as claimed in claim 12 is characterized in that, the torque distribution in the printing equipment (6) is carried out according to the current configuration of printing equipment (6).
14. the described method of one of claim is characterized in that as described above, by means of torsion model, regulates the position deviation of proofreading and correct about stock (22) positive and negative by alignment afterwards at upset cylinder (9) when printed on both sides.
15. method as claimed in claim 14 is characterized in that, the twisting states of the change of printing machine (1) is calculated; Calculate the register partial difference that stock (22) exists before at upset cylinder (9) by the twisting states that calculates in printing machine (1); The printing equipment (6) of upset after the cylinder applied the alignment that has with respect to the twice value of the paper edge loss of the printing equipment (6) before the upset to be regulated to proofread and correct register partial difference.
16. the described method of one of claim as described above, it is characterized in that, before the continuous printing operation of beginning printing machine (1), carry out the correcting travel of print job, and detect measured value in the case, be stored in the control computer (20) by the corrected value of described measured value calculating torsion model and with these corrected values.
17. a printing machine (1) has a plurality of printing equipments (6), at least one CD-ROM drive motor (16) and a control computer (20), wherein, at least a portion cylinder in the printing machine (1) (9,10,13,14) mechanically is coupled to each other, it is characterized in that,
The equipment control device (20) of printing machine (1) is set for, by means of the torsion model that is stored in control computer (20), proofread and correct register partial difference according to the variation of the known parameter of at least one measurable operational factor of printing machine (1) or at least one machine computer (20).
18. printing machine as claimed in claim 17 (1) is characterized in that, at least some cylinders in the printing machine (1) (9,10,13,14) mechanically are coupled to each other by means of a gear train.
19. the described printing machine of one of claim (1) is characterized in that as described above, is provided with a device (17), is used to detect the power expense or the torque of this at least one CD-ROM drive motor (16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006007181.6 | 2006-02-16 | ||
| DE200610007181 DE102006007181A1 (en) | 2006-02-16 | 2006-02-16 | Control of a printing machine by means of a torsion model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101024329A true CN101024329A (en) | 2007-08-29 |
Family
ID=38068929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100849032A Pending CN101024329A (en) | 2006-02-16 | 2007-02-16 | Control of a printing press using a torsion model |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1820650B1 (en) |
| CN (1) | CN101024329A (en) |
| DE (1) | DE102006007181A1 (en) |
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| CN102649348A (en) * | 2011-02-24 | 2012-08-29 | 海德堡印刷机械股份公司 | Method for controlling inking in a printing press with machine-dependent compensation in inking and dampening units |
| CN103381704A (en) * | 2012-05-02 | 2013-11-06 | 小森公司 | Registration method and apparatus for printing press |
| CN104540680A (en) * | 2012-08-16 | 2015-04-22 | 柯尼格及包尔公开股份有限公司 | In-register arrangement of printing plates on printing-press cylinders with a temperature-control system |
| CN106064527A (en) * | 2015-04-24 | 2016-11-02 | 海德堡印刷机械股份公司 | For the method setting the upper gloss varnish mechanism in digital press |
| CN108569018A (en) * | 2017-03-08 | 2018-09-25 | 海德堡印刷机械股份公司 | For reducing the quasi-static method to version difference in printing machine |
| CN109641448A (en) * | 2016-08-23 | 2019-04-16 | B和R工业自动化有限公司 | Method for adjusting the driver of machine |
| CN109765632A (en) * | 2017-11-10 | 2019-05-17 | 海德堡印刷机械股份公司 | Curvature monitoring method without activation sensor |
| CN110202962A (en) * | 2019-06-25 | 2019-09-06 | 深圳弘博智能数码设备有限公司 | A kind of digital printer, positive back register detection device and method for digital printer |
| CN111032357A (en) * | 2017-08-21 | 2020-04-17 | 曼罗兰纸张有限责任公司 | Adjustment of a printer with multiple main drive motors |
| CN114379221A (en) * | 2020-10-22 | 2022-04-22 | 海德堡印刷机械股份公司 | Device for measuring elevations of a surface of a rotating body |
| CN114379222A (en) * | 2020-10-22 | 2022-04-22 | 海德堡印刷机械股份公司 | Device and system for measuring the surface of a rotating body or the elevations thereof |
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| DE102017205408A1 (en) | 2017-03-30 | 2018-10-04 | Koenig & Bauer Ag | Method for operating a sheet-processing machine |
| DE102017208512B3 (en) * | 2017-05-19 | 2018-01-25 | Koenig & Bauer Ag | Method for compensating rotational vibrations in the operation of a sheet-processing machine with a vibration compensation model |
| DE102020124272A1 (en) * | 2020-09-17 | 2022-03-17 | manroland sheetfed GmbH | Method and device for operating a sheet-fed printing press |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3148449C1 (en) * | 1981-12-08 | 1983-06-01 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Process for reducing register errors and printing press for carrying out the process |
| DE4210988C2 (en) * | 1992-04-02 | 2003-03-27 | Heidelberger Druckmasch Ag | Method for controlling a mechanical output of a multi-motor drive for a sheet-fed printing press |
| DE4407631C1 (en) * | 1994-03-08 | 1995-10-19 | Roland Man Druckmasch | Method for starting / restarting the production run in a sheet-processing printing machine, in particular sheet-fed offset printing machine |
| DE4434843A1 (en) * | 1994-09-29 | 1996-04-18 | Roland Man Druckmasch | Procedure to avoid register differences |
| JP2000225689A (en) * | 1999-02-04 | 2000-08-15 | Koike Seisakusho:Kk | Automatic register control device which changes control constant in response to acceleration and speed of rotary press |
| DE102004031508B4 (en) * | 2004-06-30 | 2016-01-07 | Koenig & Bauer Ag | Method for correcting register differences |
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2006
- 2006-02-16 DE DE200610007181 patent/DE102006007181A1/en not_active Withdrawn
-
2007
- 2007-01-26 EP EP20070101216 patent/EP1820650B1/en not_active Not-in-force
- 2007-02-16 CN CNA2007100849032A patent/CN101024329A/en active Pending
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| CN114379221A (en) * | 2020-10-22 | 2022-04-22 | 海德堡印刷机械股份公司 | Device for measuring elevations of a surface of a rotating body |
| CN114379222A (en) * | 2020-10-22 | 2022-04-22 | 海德堡印刷机械股份公司 | Device and system for measuring the surface of a rotating body or the elevations thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1820650A3 (en) | 2012-02-22 |
| EP1820650A2 (en) | 2007-08-22 |
| EP1820650B1 (en) | 2013-03-13 |
| DE102006007181A1 (en) | 2007-08-23 |
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