CN101583550B - Method and device for the control of a feed mechanism - Google Patents

Method and device for the control of a feed mechanism Download PDF

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Publication number
CN101583550B
CN101583550B CN2007800476020A CN200780047602A CN101583550B CN 101583550 B CN101583550 B CN 101583550B CN 2007800476020 A CN2007800476020 A CN 2007800476020A CN 200780047602 A CN200780047602 A CN 200780047602A CN 101583550 B CN101583550 B CN 101583550B
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CN
China
Prior art keywords
words
web tension
value
breadth
feed mechanism
Prior art date
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Expired - Fee Related
Application number
CN2007800476020A
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Chinese (zh)
Other versions
CN101583550A (en
Inventor
R·波塞尔特
U·赛弗特
B·梅利斯
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Manroland Web Systems GmbH
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Manroland AG
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Publication date
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/03—Threading webs into printing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/52—Auxiliary process performed during handling process for starting
    • B65H2301/522—Threading web into machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/24—Calculating methods; Mathematic models
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

The invention relates to a method for the control of a feed mechanism (15) of a web-fed printing press, i.e., for the control of tensile stress and/or web tension of a printing material web (14) to betaken into the printing unit (10, 11) by means of the feed mechanism, wherein thereby an actual value is compared with a desired value, and wherein according to the discrepancy between the actual val ue and the desired value, a control device for the tensile stress and/or the web tension produces a correcting variable for the feed mechanism. According to the invention, the actual value of the tensile stress and/or the web tension is determined by calculation based on a model.

Description

Be used to regulate the method and apparatus of feed mechanism
Technical field
The present invention relates to a kind of method that is used to regulate the feed mechanism of rotary press.In addition, the present invention relates to a kind of device that is used to regulate the feed mechanism of rotary press.
Background technology
Known from practice, by means of so-called feed mechanism the stock breadth is drawn in the printing element of rotary press.The feed mechanism that is used for the stock breadth is drawn in the printing element of rotary press has at least one roller that actuating device drove by described feed mechanism, driven roller of wherein said feed mechanism with than the low rotating speed of the roller that is used for the delivering printing breadth of described printing element or cylinder in other words circumferential velocity move, thereby between described feed mechanism and printing element, be provided for the breadth pulling force of the appointment of the stock breadth that remains to be drawn in thus.Described breadth pulling force is meant a kind of power, wherein described breadth pulling force is being calculated web tension by this breadth pulling force during divided by the width of the stock breadth that remains to be drawn in.
Open from EP 0 976 674 B2, regulate web tension in the following manner, just actual value and the corresponding rated value with web tension compares, wherein regulating mechanism depend between described actual value and the rated value difference in other words deviation produce the regulated value that is used for described feed mechanism.At this, according to the measured actual value of EP 0 976 674 B2 use web tension, therefrom can find, need be used for the measurement mechanism of web tension accordingly.The measurement mechanism that is used for web tension like this cause described feed mechanism in other words the complexity of rotary press structure and improve its cost thus.
Summary of the invention
Thus, task of the present invention is, is provided for regulating a kind of method and a kind of device of novelty of the feed mechanism of rotary press.
This task is resolved by method of the present invention.By the present invention, on model based, try to achieve the described breadth pulling force actual value of web tension in other words by method of calculating.
On meaning of the present invention, on model based, try to achieve the described breadth pulling force actual value of web tension in other words by method of calculating.Therefore, can save by the present invention and be used to detect the described web tension measurement mechanism sensor in other words of the actual value of breadth pulling force in other words.Can and so realize the described feed mechanism simpler structure of rotary press in other words with lower expense thus with lower cost.
The adjusting of web tension in other words of preferred described breadth pulling force is added to and is added in other words in the adjusting of rotating speed of actuating device of described feed mechanism in the adjusting of position of actuating device of described feed mechanism.
Description of drawings
Preferred improvement project of the present invention obtains from dependent claims and following explanation.Described embodiment is explained in detail being not limited under the situation of embodiments of the invention by means of accompanying drawing below.Wherein:
Fig. 1 is the intercepting part that is used to explain signal of the present invention of rotary press;
Fig. 2 is a kind of scheme drawing of preferred regulation scheme of actuating device of the feed mechanism that is used for rotary press;
Fig. 3 is used for trying to achieve the breadth pulling force signal flow graph of the model of the actual value of web tension in other words with account form; And
Fig. 4 is used for trying to achieve the breadth pulling force signal flow graph of the alternate model of the actual value of web tension in other words with account form.
The specific embodiment
Fig. 1 shows the intercepting part of the signal of rotary press, and this intercepting part is in two and stacks the printing element 10,11 of layout up and down and be arranged in the zone of described two printing elements, 10,11 fwd change of lap devices 12.In the zone of described change of lap device 12, the stock of breadth shape is ready to the form of stock volume 13 and as stock breadth 14 debatching from the described stock volume 13, wherein said stock breadth 14 is drawn in the described printing element 10 in the feed mechanism 15 of described printing element 10 by means of attaching troops to a unit.Described feed mechanism 15 has the roller 17 that driven device 16 is driven, and is used for described stock breadth 14 is drawn in described printing unit 10.
Described printing unit 10,11 is configured to so-called 8-cylinder-printing element.Therefore, each in the described printing element 10,11 all has four printing units, and wherein every printing unit has plate cylinder 18 and transfer cylinder 19.The transfer cylinder 19 of per two printing units rolls on each other under the situation of the printed slot that is configured for stock breadth 14, and wherein said transfer cylinder 19 is also further carried described stock breadth 14 and passed printing element 10,11.With respect to the transfer cylinder 19 of described printing unit 10,11 with rotating speed devious in other words circumferential velocity drive the roller 17 of described feed mechanism 15, thereby the web tension of the breadth pulling force appointment in other words of appointment is provided for described stock breadth 14 thus.
For the actuating device 16 of described feed mechanism 15 has set actuating device regulating control 20.Fig. 2 shows the preferred construction of described actuating device regulating control 20, and wherein the actuating device regulating control 20 of Fig. 2 is also regulated the rotating speed of described actuating device 16 web tension in other words except the breadth pulling force of regulating the stock breadth.Therefore the actuating device regulating control 20 of Fig. 2 comprises the regulating mechanism 21 of the rotating speed that is used to regulate described actuating device 16, and wherein said rpm governor 21 is at the rated value N of the rotating speed of actuating device 16 SpecifiedMeasured actual value N with the rotating speed of this actuating device 16 ActualBetween the basis of deviation on output be used for the regulated value Y of described actuating device 16 MotorIn order to detect the actual value N of the rotating speed of described actuating device 16 with measurement technique Actual, for this actuating device 16 has set tachogen 22.
According to Fig. 2 breadth pulling force adjusting of web tension in other words that superposeed on speed adjustment, described for this reason actuating device regulating control 20 also comprises except rpm governor 21 and is used to regulate the breadth pulling force regulating mechanism 23 of web tension in other words.Described breadth draft regulator in other words web tension regulating control 23 at the breadth pulling force rated value X of web tension in other words SpecifiedWith corresponding actual value X ActualBetween the basis of deviation on try to achieve the regulated value Y that is used for described feed mechanism 15 N, wherein this is used for the rated value Y of described feed mechanism 15 in the embodiment of Fig. 2 NBe the rated value N of the rotating speed of described actuating device 16 SpecifiedDeviant.
On meaning of the present invention, described breadth pulling force is the actual value X of described web tension in other words ActualNot by measurement technique but on the basis of model 24, try to achieve or rather by method of calculating.Described model 24 is exported the described breadth pulling force actual value X of web tension in other words as output parameter Actual, wherein the motor torque M by means of torque sensor 25 measurements of parameter with described actuating device 16 imported in conduct in the embodiment of Fig. 2 Motor, described actuating device 16 the actual value N that measures by means of tachogen 22 of rotating speed Actual, described change of lap device 12 breadth value of thrust web tension value X in other words RWAnd the friction moment M of described feed mechanism 15 FrictionFlow to described model 24.The friction moment M of described feed mechanism 15 FrictionBe the parameter that depends on rotating speed, wherein preferably make described friction moment M Friction=m*N Actual+ c linearization.
Described then model 24 is tried to achieve the described breadth pulling force actual value X of web tension in other words according to Fig. 4 with following method Actual:
X Actual=G2 (X RW)+a*[G1 (M Motor)+m*N Actual+ c]
X wherein ActualBe the described breadth pulling force actual value that calculates of web tension, wherein X in other words RWBe breadth value of thrust web tension value, the wherein M in other words of described change of lap device MotorBe the motor torque of described actuating device, wherein N ActualBe the rotating speed of described actuating device, wherein G1 and G2 are smooth functions, and wherein a and m and c are constants.
Be noted that the motor torque M that also can replace described actuating device 16 at this MotorDetect to form the electric current of described motor torque and used as the input parameter of described model 24 with measurement technique.The breadth value of thrust that can replace described change of lap device equally is web tension value X in other words RWUse and form the described breadth value of thrust parameter of web tension value in other words.
Described to motor torque M MotorThe perhaps breadth value of thrust of change of lap device web tension value X in other words RWThe smooth function G1 and the G2 that carry out smoothing processing are filter functions.If by described torque sensor 25 in other words the change of lap device parameter of handling through respective smoothed is provided, can save described smooth function G1 and G2 so.
As top explanation already, described parameter c, m and a are constants.Said parameter c and m are the linearizing friction moment M that depends on rotating speed FrictionConstant.
Constant a is conversion factor, and this conversion factor depends on the transmitting ratio i between the roller 17 of described actuating device 16 and described feed mechanism 15 and the radius r of described roller 17.For described conversion factor a, be suitable for:
a = i r
Also can replace shown in Figure 4 being used to calculate the breadth pulling force actual value X of web tension in other words ActualModel 24 use the model 24 ' of simplification shown in Figure 3.In described model 24 ', use constant friction moment M Friction=c is used to calculate described actual value X ActualWeb tension in other words, thus for described model 24 ', do not need the rotational speed N of described actuating device 16 ActualAs the input parameter.Described model 24 ' is then tried to achieve the described breadth pulling force actual value X of web tension in other words according to Fig. 3 with following method Actual
X Actual=X RW+ a*[G1 (M Motor)+c]
X wherein ActualBe the described breadth pulling force actual value that calculates of web tension, wherein X in other words RWBe breadth value of thrust web tension value, the wherein M in other words of described change of lap device MotorBe the motor torque of described actuating device, wherein G1 is a smooth function, and wherein a and c are constants.
As reference Fig. 2 was illustrated, the adjusting of web tension in other words of described in a preferred embodiment breadth pulling force was added on the speed adjustment of described actuating device 16.Different therewith is, also the adjusting of web tension in other words of described breadth pulling force can be added in the adjusting of position of actuating device 16 of described feed mechanism 15, then described be used for the breadth pulling force in other words the regulating mechanism 23 of web tension export the deviant of rated value of the position of described actuating device 16 as regulated value.In this case, described regulating mechanism 23 also can be adjusted so-called transmission factor (Getriebefaktor).
Fig. 4 in other words 3 model 24 can consider the moment of inertia of described feed mechanism in case of necessity as other input parameter in other words in 24 ', be used for when rotation speed change, improving the described breadth pulling force actual value X of web tension in other words ActualCalculating.
According to Fig. 2, in a preferred embodiment, described breadth the pulling force regulating mechanism 23 and the described actual value X that is used for trying to achieve described web tension of web tension in other words of being used for account form ActualModel 24 be integrated in the described actuating device regulating control 20.But also can these assemblies be realized as independent mechanism in the outside of described actuating device regulating control 20.
Described model 24 in other words 24 ' constant a, c and in case of necessity m with manual mode or automatically try to achieve.When trying to achieve described parameter automatically, only for trying to achieve parameter the breadth tension measuring device has been installed between described feed mechanism 15 and printing element 10, then described actuating device regulating control 20 does not move with the different rated value of breadth pulling force simultaneously at rotating speed.Detect the electric current of the moment formation torque of described actuating device in other words of described actuating device, the rotating speed and the described breadth pulling force of described actuating device at this, wherein from the detection of this measurement technique, can calculate described parameter c, m and a by means of the optimization of numerical value.The parameter that to so try to achieve is used in the model then, tries to achieve with account form when being used for next under the situation that does not have the breadth tension measuring device operation to be used for the described breadth pulling force actual value X of web tension in other words Actual
Reference numerals list
10 printing elements
11 printing elements
12 change of lap devices
13 stocks volume
14 stock breadths
15 feed mechanisms
16 actuating devices
17 rollers
18 plate cylinders
19 transfer cylinders
20 actuating device regulating controls
21 regulating mechanisms
22 tachogens
23 regulating mechanisms
24,24 ' model
25 torque sensors

Claims (11)

1. the feed mechanism that is used for regulating rotary press just is used to regulate the breadth pulling force method of web tension in other words of drawing in the stock breadth of printing element by means of described feed mechanism, wherein actual value and rated value are compared for this reason, and be used for described breadth pulling force in other words the deviation that depends between described actual value and the rated value of the regulating mechanism of web tension produce the regulated value be used for described feed mechanism, it is characterized in that, on model based, try to achieve the described breadth pulling force actual value of web tension in other words by method of calculating.
2. by the described method of claim 1, it is characterized in that, use as the input parameter that is used for described model described feed mechanism actuating device motor torque or form the friction moment of the electric current of described motor torque, described feed mechanism and by being arranged on breadth value of thrust that described feed mechanism fwd change of lap device provides web tension value or form the parameter of described breadth value of thrust or web tension value in other words.
3. by the described method of claim 2, it is characterized in that, as the constant friction moment of friction moment use of described feed mechanism.
4. by the described method of claim 3, it is characterized in that described model is tried to achieve the described breadth pulling force actual value of web tension in other words with following method:
X Actual=X RW+ a*[G1 (M Motor)+c];
X wherein ActualBe the described breadth pulling force actual value that calculates of web tension, wherein X in other words RWBe breadth value of thrust web tension value, the wherein M in other words of described change of lap device MotorBe the motor torque of described actuating device, wherein G1 is a smooth function, and wherein a and c are constants.
5. by the described method of claim 2, it is characterized in that, use the friction moment that depends on rotating speed, then use the rotating speed of the actuating device of described feed mechanism as other input parameter that is used for described model as the friction moment of described feed mechanism.
6. by the described method of claim 5, it is characterized in that described model is tried to achieve the described breadth pulling force actual value of web tension in other words with following method:
X Actual=G2 (X RW)+a*[G1 (M Motor)+m*N Actual+ c];
X wherein ActualBe the described breadth pulling force actual value that calculates of web tension, wherein X in other words RWBe breadth value of thrust web tension value, the wherein M in other words of described change of lap device MotorBe the motor torque of described actuating device, wherein G1 and G2 are smooth functions, wherein N ActualThey be the rotating speed of described actuating device, and wherein a and m and c are constants.
7. by each described method in the claim 1 to 6, it is characterized in that, the adjusting of web tension in other words of described breadth pulling force is superimposed upon in the adjusting of rotating speed of actuating device of described feed mechanism, wherein said be used for the breadth pulling force in other words the regulating mechanism of web tension export the deviant of described feed mechanism rotational speed of driving unit rated value as regulated value.
8. by each described method in the claim 1 to 6, it is characterized in that, the adjusting of web tension in other words of described breadth pulling force is added in the adjusting of position of actuating device of described feed mechanism, wherein said be used for the breadth pulling force in other words the regulating mechanism of web tension export the deviant of described feed mechanism actuating device position rated value as regulated value.
9. by the described method of claim 5, it is characterized in that described friction moment is linearizing.
10. the feed mechanism that is used for regulating rotary press just is used to regulate the breadth pulling force device of web tension in other words of drawing in the stock breadth of printing element by means of described feed mechanism, have and be used for the described breadth pulling force regulating mechanism of web tension in other words, this regulating mechanism depend on described breadth pulling force in other words the actual value of web tension and the deviation between the rated value produce the regulated value that is used for described feed mechanism, it is characterized in that on model based, trying to achieve the described breadth pulling force mechanism of the actual value of web tension in other words by method of calculating.
11. by the described device of claim 10, it is characterized in that, described mechanism with model and/or described be used for the breadth pulling force in other words the regulating mechanism of web tension be integrated in the actuating device regulating control of the actuating device of described feed mechanism.
CN2007800476020A 2006-12-22 2007-12-20 Method and device for the control of a feed mechanism Expired - Fee Related CN101583550B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006061252.3 2006-12-22
DE102006061252A DE102006061252A1 (en) 2006-12-22 2006-12-22 Method and device for controlling a feeder
PCT/EP2007/011272 WO2008077582A1 (en) 2006-12-22 2007-12-20 Method and device for the control of a feed mechanism

Publications (2)

Publication Number Publication Date
CN101583550A CN101583550A (en) 2009-11-18
CN101583550B true CN101583550B (en) 2011-12-21

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Application Number Title Priority Date Filing Date
CN2007800476020A Expired - Fee Related CN101583550B (en) 2006-12-22 2007-12-20 Method and device for the control of a feed mechanism

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US (1) US20100089962A1 (en)
EP (1) EP2203370B1 (en)
CN (1) CN101583550B (en)
CH (1) CH701390B1 (en)
DE (1) DE102006061252A1 (en)
WO (1) WO2008077582A1 (en)

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US20100089962A1 (en) 2010-04-15
EP2203370A1 (en) 2010-07-07
EP2203370B1 (en) 2013-10-23
WO2008077582A1 (en) 2008-07-03
CH701390B1 (en) 2011-01-14
DE102006061252A1 (en) 2008-06-26
CN101583550A (en) 2009-11-18

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