EP0084698B1 - Appareil et méthode pour varier l'emplacement d'une opération effectuée sur un élément allongé mobile - Google Patents

Appareil et méthode pour varier l'emplacement d'une opération effectuée sur un élément allongé mobile Download PDF

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Publication number
EP0084698B1
EP0084698B1 EP82301494A EP82301494A EP0084698B1 EP 0084698 B1 EP0084698 B1 EP 0084698B1 EP 82301494 A EP82301494 A EP 82301494A EP 82301494 A EP82301494 A EP 82301494A EP 0084698 B1 EP0084698 B1 EP 0084698B1
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EP
European Patent Office
Prior art keywords
take
web
feed
sensor
drive
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Expired
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EP82301494A
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German (de)
English (en)
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EP0084698A1 (fr
Inventor
John Henry Morgan
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Morgan John Henry
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Morgan John Henry
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Priority to AT82301494T priority Critical patent/ATE22268T1/de
Publication of EP0084698A1 publication Critical patent/EP0084698A1/fr
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Publication of EP0084698B1 publication Critical patent/EP0084698B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B41F13/025—Registering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/10—Constitutive elements of driving devices
    • B41P2213/20—Gearings
    • B41P2213/208—Harmonic drive

Definitions

  • the invention relates to apparatus for and method of varying the position of an operation performed on a moving element such as a web of material.
  • the paper web In the field of printing, and particularly in the field of printing matter on a paper web for use in a computer print-out machine, printed matter often has to be applied to the web with extreme accuracy.
  • the paper web When printing a pre-processed paper web for use in computer print-out machines, the paper web generally comprises a length of paper which has numerous evenly spaced transverse perforations to define interconnected sheets and which enables the web to be arranged as a concertina-like stack.
  • a computer user requires certain basic printed matter to appear on every sheet of the stack it is essential to ensure that the printed matter is placed in a precise position on each sheet so that the printed matter aligns accurately with the print applied by the computer print-out machine.
  • Known apparatus for varying the position of an operation performed on an elongate moving element comprises means for performing the operation on the moving element, feed means and take-up means for the element, sensor means for sensing the relative positioning of the element and the operation performed thereon and means operable in response to the sensor means for controlling the positioning of the element.
  • Such apparatus is known from GB Patent No. 1399394 where the web positioning is controlled by varying the tension in the web to correct misregistration of the web so as to vary its position relative to a printing roller.
  • the pre-characterizing portion of claim 1 is based on the disclosure of this citation.
  • An object of the present invention is to provide an improved apparatus which reduces the foregoing disadvantages.
  • apparatus for varying the position of an operation performed on an elongate moving element comprising means for performing the operation on the moving element, feed means and take-up means for the element, sensor means for sensing the relative positioning of the element and the operation performed thereon and means operable in response to the sensor means for controlling the positioning of the element characterised in that if said relative positioning is incorrect said means operable in response to the sensor means controls the feed means and take-up means simultaneously so as to move the web relative to the means for performing said operation substantially without varying any tension in the element between the feed means and take-up means.
  • initial tension will be applied to the element particularly where the element takes the form of a pre-printed paper web. Where such a web has transverse perforations, the initial tension is set below that which will tear the perforations. When varying the position of the web there will be substantially no change in the tension set initially and so the danger of tearing when correcting misregistration is substantially avoided. This is particularly advantageous as there is no need to incorporate strain gauges or mechanical tension sensing means to prevent excessive tension being applied when correcting misregistration.
  • the feed means and take-up means are driven by drive means common to both and the drive means may transmit drive to the feed means and take-up means through an infinitely variable transmission controlled by said means operable in response to said sensor means.
  • the drive means may include a drive output which transmits drive to an input shaft of the infinitely variable transmission and which also transmits drive through transmission means to said means for performing the operation of the element.
  • Drive to the take-up means is preferably transmitted through a slipping-type clutch which enables a predetermined working tension to be applied to the element.
  • the working tension will remain substantially constant as the feed rate of the feed means is increased or decreased by the same amount.
  • the feed means includes a feed roller for feeding an element in the form of an elongate web
  • the take-up means includes a take-up roller
  • the means for performing an operation on the element includes printing cylinders between which the web passes with sliding contact to enable a printing operation to be performed on it, the feed and take-up rollers being arranged to increase or decrease the rate at which the web passes between the printing cylinders to vary the position of the web relative to the printing cylinders and thereby varying the position at which print is applied to the web.
  • the printing cylinders preferably include a blanket cylinder and an impression cylinder, the impression cylinder being driven through the infinitely variable transmission so that its peripheral speed in use will always be the same as the peripheral speeds of the feed and take-up rollers, and the blanket cylinder being driven from the drive shaft of the drive means through transmission means.
  • the sensor means may comprise a first sensor for sensing the position of the element and a second sensor which senses the rotary position of the blanket cylinder, a rotary member being provided which is driven by the drive means at the same rotational speed as the blanket cylinder or at a rotational speed proportional to that of the blanket cylinder, the rotary member being co-operable with the second sensor to enable the second sensor to provide a signal which effectively indicates the rotary position of the blanket cylinder.
  • Signals from said first and second sensors may be fed to comparator means such as a micro-processor which provides art output used to control the infinitely variable transmission.
  • Means for arranging the web in a predetermined manner may be arranged to receive the web from the take-up means and may be driven by the said drive means so that it operates at the same rate as the take-up means. In that manner, a web issuing from the take-up means can, say, be folded and stacked at a rate consistent with the feed and take-up rate of the web.
  • the feed means and take-up means are driven by drive means in the form of a motor common to both and the means for performing the operation on the element is driven by a further motor, said means operable in response to said sensor means being arranged to control the relative speeds of the motors.
  • the invention relates to a method of varying the position of an operation performed on an elongate moving element comprising feeding the element at a desired rate, performing the operation on the fed element, taking up the element on which the operation has been performed and sensing the relative positions of the element and the operation performed thereon.
  • a method is known from GB-A-1 399 394.
  • the method is characterised by adjusting the rate of feed and take-up simultaneously to move the element relative to the means for performing the operation substantially without varying any tension in the element if the aforesaid relative positions are incorrect.
  • the apparatus of Figures 1 to 3 includes a main frame or bed F carrying a storage hopper or platform 1 for a stack of paper 2.
  • the stack comprises a web W formed with lines of transverse perforations 3 which divide the web into inter-connected sheets 4.
  • the stack is formed by arranging the sheets in concertina fashion.
  • a feed unit 5 comprises a main feed roller 6 and pressure rollers 7, 8 rotatably mounted on the frame F.
  • the feed roller 6 has a toothed pulley 9 at one end which is driven through a toothed belt 10 by a toothed output pulley 12 of an infinitely variable transmission indicated generally at 13.
  • a take-up unit 14 includes a main take-up roller 15 rotatably mounted on the frame F and an associated pressure roller 15a.
  • the roller 15 is driven through a fluid operable slipping-type clutch 16, the torque transmission characteristics of which can be varied by fluid under pressure P fed to the clutch via a control valve 17.
  • the drive to the clutch 16 is described below.
  • From the take-up unit 14 the web W passes to a take-up hopper or platform 18 where a concertina-like stack is formed with the aid of folding means 19.
  • a printing unit 22 comprising the usual plate cylinder 23, blanket cylinder 24 and impression cylinder 25.
  • the cylinders are mounted on the frame F, the cylinders 23, 24 preferably being mounted on an axially slidable breach-loading unit (not shown) enabling them to be withdrawn axially to one side of the impression cylinder for access.
  • the blanket cylinder 24 has a toothed pulley 26 at one end which is driven by a toothed belt 27 from a main motor 28.
  • a suitable transmission (indicated diagrammatically by line 29) transmits drive from the blanket cylinder 24 to a wheel 30 formed with equispaced apertures 32 on a pitch circle coaxial with the wheel. Preferably one revolution of the blanket cylinder will result in one revolution of the wheel 30 or the ratio may be different.
  • the web is held against the impression cylinder by a pressure roller 31. Instead of transmitting drive to the wheel 30 from the blanket cylinder, drive may be transmitted to the wheel 30 from the motor 28 by other transmission means in synchronism with the blanket cylinder.
  • Suitable drive transmissions are arranged respectively between the feed roller 6 and the impression cylinder 25, and clutch 16.
  • the transmission 33 ensures that the peripheral speeds of the feed roller 6 and impression cylinder 25 will always be equal and the transmission 34 ensures that any change in peripheral speed of the roller 6 and impression cylinder 25 is transmitted to the clutch 16 and hence to take-up roller 15.
  • a transmission 34' is provided between the impression cylinder 25 and the folding means 19 so that the folding means will be driven in synchronism with the web.
  • the transmissions 33, 34 and 34' can be belt, chain, gear or any other suitable type.
  • a first light sensor 39 is arranged immediately beneath one of two lines of sprocket holes 41 ( Figure 3) extending along margins of the web.
  • the spacing between centres of adjacent apertures 32 in the wheel 30 corresponds to the spacing between centres of adjacent sprocket holes e.g. half an inch (12.7 mm).
  • a light source 40 is arranged above the web and projects a light beam towards sensor 39.
  • a second light sensor 42 is arranged behind the apertured wheel 30 and a second light source 143 is arranged to direct a beam of light towards the sensor 42 through the apertures so that the beam reaching the sensor 42 will be intermittent during rotation of the wheel 30.
  • Signals from the sensors 39, 42 are fed to the micro-processor 38 which compares the signals and makes any adjustments in web speed necessary to correct misregistration.
  • the apparatus is initially set up so that the web follows the path shown, the web passing around guide rollers 43,44,45 and 46.
  • the control valve 17 of the clutch 16 is adjusted so that with the web in motion, the rotation of the clutch through transmission 34 will rotate the roller 15.
  • the clutch tends to drive the roller 15 so that its peripheral speed would be greater than the web feeding speed.
  • the clutch permits slipping to occur so that the peripheral speed of the roller 15 remains the same as the web feeding speed.
  • Such arrangement creates a tension in the web which is constant throughout the web between the feed and take-up rollers 6, 15, the web being positioned relative to the blanket cylinder 24 so that the printed matter will be applied to the sheets 4 in the exact desired position.
  • the size of the blanket cylinder 24 is accurately selected so that it will print the matter on one sheet or a predetermined number of sheets during one revolution as the web moves between the blanket and impression cylinders.
  • the light sensor 39 and source 40 are then aligned exactly with a sprocket hole 41 on the web and the light sensor 42 and source 143 are aligned exactly with an aperture in the wheel 30.
  • the micro-processor 38 is arranged so that the signal from the sensor 42 forms a datum with which the signal from sensor 39 will be compared.
  • the variable transmission 13 is adjusted so as to feed the web at the peripheral speed of the blanket cylinder 24. Therefore, initially, the blanket cylinder will print the sheets in the desired position. With the apparatus in motion the print should, in theory, always be applied in the right position on each sheet. However, if the length of each sheet varies slightly, as is a common occurrence, the printed matter will begin to drift relative to the marginal perforations.
  • the micro-processor is programmed to count the number of apertures 32 passing sensor 42 and to compare that number with the number of sprocket holes 41 passing over the sensor 39. The micro-processor may be programmed to make a comparison, say, every ten apertures. Provided that ten sprocket holes have also passed over sensor 39, no misregistration is occurring.
  • the micro-processor sends a signal to the servomotor 37 to speed up the feed and take up rollers together with the impression cylinder.
  • the increase in speed does not result in any or at least any significant increase in tension in the web because the change in speed is imparted to the whole of the web between the feed and take up rollers 6, 15.
  • the web W is in sliding contact with the blanket cylinder 24 which offers negligible resistance to movement of the web when the speed changes.
  • the actual amount of relative movement between the blanket cylinder 24 and the web will be very small to correct misregistration in its early stages.
  • the senor 42 is effectively sensing the rotary position of the blanket cylinder 24 as the wheel 30 is driven directly from it. Therefore the sensors 39, 42 together sense the relative positions of the web and print applied to the web.
  • FIG. 2 A typical drive arrangement for the apparatus is shown in Figure 2 where the main motor 28 drives a primary shaft 47 through a gear box 48.
  • the shaft 47 carries toothed pulleys 49, 50 the former driving the blanket cylinder 24 through belt 27 and the latter driving the toothed input pulley 36 of the variable transmission 13 through the belt 35.
  • the variable transmission is preferably of the type known as a Harmonic Drive manufactured by Harmonic Drives Inc. of Tokyo Japan. However, other forms of variable transmission such as a variable epicyclic gearing could be used.
  • Figure 4 shows a typical working arrangement for the apparatus of Figures 1 to 3 and in Figure 4 parts corresponding to parts in Figures 1 to 3 have the same reference numerals.
  • the bed F carries the platforms 1 and 18 for the paper web (not shown).
  • the feed unit 5 is arranged in a housing 50 and the paper (not shown) passes over the feed roller 6.
  • the take-up unit 14 is also arranged in a housing 52 and includes the take up roller 15. Pressure rollers are omitted for clarity.
  • the printing unit 22 is arranged in a housing 53 and the plate cylinder, blanket cylinder and impression cylinder are indicated at 23, 24 and 25.
  • a number of inking rollers indicated generally at 54 are provided in known manner.
  • the apparatus is driven from the motor 28 which drives the primary shaft 47 through gear box 48 as in Figure 2.
  • the servo motor 37 controls the Harmonic Drive unit or other infinitely variable transmission 13 through a gear box 37a.
  • the toothed output pulley 12 of the transmission 13 is connected by a toothed belt 55 to a layshaft 56.
  • the layshaft carries a toothed pulley 57 which is connected by a toothed belt 58 to a toothed pulley 59 rotatably fast with the feed roller 6.
  • the layshaft 56 carries a further toothed pulley 60 which transmits drive through a toothed belt 33 to a toothed pulley 62 on a further layshaft 63.
  • the pulley 62 is rotatably fast with an outer toothed pulley 64, and inner toothed pulleys 65, 66.
  • the pulleys 62, 64, 65 and 66 are freely rotatable on layshaft 63.
  • the pulley 64 is connected via a toothed belt 34 to a toothed pulley 67 for driving clutch 16.
  • the clutch 16 drives take-up roller 15 through toothed belt 16a.
  • the pulley 65 is connected via a toothed belt 68 to a toothed pulley 69 rotatably fast with a shaft 70 carrying the impression cylinder 25.
  • the shaft 70 also carries a toothed pulley 71 drivably connected by a toothed belt 73 to a toothed pulley 72 for driving the numerous inking rollers 54.
  • the pulley 71 is drivably connected to an adjacent toothed pulley 71a, both pulleys being freely rotatable on the shaft.
  • the pulley 71a is driven by a toothed belt 75 from a toothed pulley 75a rotatably fast with shaft 63.
  • the pulley 66 drives gears 74 for the web folding means (not shown in Figure 4) through a toothed belt 34'. It will be seen, therefore, that the feed roller 6, take-up roller 15, impression cylinder 25 and the folding means are all driven from the output of the infinitely variabie transmission 13.
  • the primary shaft 47 drives the layshaft 63 through a toothed belt 76.
  • Drive is transmitted from the layshaft by a toothed belt 77 to a gear 78 freely rotatable on the shaft 70.
  • the gear 78 meshes with one of two meshing gears 78a (one only of which is shown) on the plate and blanket cylinders 23 and 24. In that manner the layshaft 63 drives the plate and blanket cylinders.
  • the plate 30 is rotatably fast with layshaft 63 and is therefore driven in synchronism with the blanket cylinder.
  • the sensors are omitted for clarity from Figure 4 and the microprocessor 38 will normally be housed conveniently in the bed of the machine.
  • feed and take-up rollers 6 and 15 which transport the web W through a printing unit 22 comprising plate, blanket and impression cylinders 23, 24 and 25.
  • the feed roller; take up roller and impression cylinder are driven by a first motor 80 through belts 82; 83, 83a and 84 respectively and the blanket cylinder 24 is driven by a second motor 85 through a belt 86.
  • the motors have respective controllers 89, 90.
  • a slipping-type clutch 87 is provided in the drive to the take up roller 15.
  • a sensor 39 with a light source 40 senses the sprocket holes in web W.
  • a further sensor 42 with a light source 143 senses the position at which print is applied to the web either by means similar to that shown in Figure 1 or by sensing a print mark applied to the web in the printing unit. Signals from the sensors are fed to a comparator such as the micro-processor 38 which applies output signals to a control box 89 for varying the speed of motor 10 and hence the speed of the web relative to the blanket cylinder 24 without substantially changing the tension in the web W.
  • the speed of the motors can be controlled simultaneously to increase or decrease the speed of the entire apparatus by a coarse control potentiometer 91.
  • the tension may be zero or substantially zero.
  • the web may be of a non-sprocket hole type having marks applied thereto to be picked up by sensor 39.
  • the print unit could be replaced by another type of unit for carrying out some other operation, e.g. scoring or perforating, on a pre-processed web.
  • the web may be replaced by some other elongate element such as a narrow tape or filament on which some operation is to be performed at precise intervals.
  • a sensor may be used which directs a light beam towards the web and then receives the reflected beam. Such a reflected beam will be interrupted by the sprocket holes as the web moves past the sensor and in that way the sprocket holes can be counted.
  • a similar system may be used in place of sensor 42 and light source 143.

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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)
  • Vehicle Body Suspensions (AREA)

Claims (14)

1. Appareil pour faire varier la position d'une opération effectuée sur un élément mobile allongé (W), comprenant des moyens (22) permettant d'effectuer l'opération sur l'élément mobile, des moyens d'alimentation (5) et des moyens d'extraction (14) de l'élément, des moyens de détection (39, 42) permettant de détecter la position relative de l'élément et de l'opération effectuée sur celui-ci et des moyens (38) fonctionnant en réponse aux moyens de détection pour commander la mise en place de l'élément, appareil caractérisé en ce que, si la position relative est incorrecte, les moyens (38) fonctionnant en réponse aux moyens de détection (39, 42), commandent simultanément les moyens d'alimentation (5) et les moyens d'extraction (14), de manière à entraîner l'élément allongé (W) par rapport aux moyens (22) pour effectuer l'opération ci-dessus sans produire la moindre variation de tension, dans l'élément mobile allongé, entre les moyens d'alimentation et les moyens d'extraction.
2. Appareil selon la revendication 1, caractérisé en ce que les moyens d'alimentation (5) et les moyens d'extraction (14) sont entraînés par des moyens d'entraînement (28) communs aux deux.
3. Appareil selon la revendication 2, caractérisé en ce que les moyens d'entraînement (28) transmettant l'entraînement aux moyens d'alimentation (5) et aux moyens d'extraction (14) par l'intermédiaire d'une transmission variable par valeurs infinitésimales (13) commandée par les moyens (38) fonctionnant en réponse aux moyens de détection (39, 42).
4. Appareil selon la revendication 3, caractérisé en ce que les moyens d'entraînement (28) comprennent une sortie d'entraînement transmettant l'entraînement à un arbre d'entrée de la transmission variable par valeurs infinitésimales (13), et transmettant également l'entraînement, par l'intermédiaire de moyens de transmission (27), aux moyens (22) destinés à effectuer l'opération sur l'élément (W).
5. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens d'extraction (14) sont entraînés par l'intermédiaire d'une embrayage de type à glissement (16) permettant d'appliquer une tension de travail prédéterminée à l'élément (W).
6. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens d'alimentation (5) comprennent un rouleau d'alimentation (6) destiné à assurer l'alimentation d'un élément se présentant sous la forme d'un rouleau de papier allongé (W), en ce que les moyens d'extraction (14) comprennent un rouleau d'extraction (15), et en ce que les moyens (22) destinés à effectuer une opération sur l'élément, comprennent des cylindres d'impression (24, 25) entre lesquels le rouleau de papier passe avec un contact de glissement permettant d'effectuer une opération d'impression sur celui-ci, les rouleaux d'alimentation et d'extraction (6, 15) étant montés de manière à augmenter ou diminuer la vitesse de passage de la feuille de papier entre les cylindres d'impression, pour faire varier la position de cette feuille de papier par rapport au cylindre d'impression, en faisant ainsi varier la position d'application de l'impression sur la feuille de papier.
7. Appareil selon la revendication 6, dépendant de la revendication 3, caractérisé en ce que les cylindres d'impression comprennent un cylindre blanchet (24) et un cylindre d'impression (25), le cylindre d'impression (25) étant entraîné par l'intermédiaire de la transmission variable par valeurs infinitésimales (13) de façon, qu'en cours d'utilisation, sa vitesse périphérique soit toujours la même que la vitesse périphérique des rouleaux d'alimentation et d'extraction (6, 15), et le cylindre blanchet (24) étant entraîné par l'arbre d'entraînement des moyens d'entraînement (28) par l'intermédiaire des moyens de transmission (27).
8. Appareil selon la revendication 7, caractérisé en ce que les moyens de détection comprennent un premier détecteur (39) destiné à détecter la position de l'élement (W) et un second détecteur (42) destiné à détecter la position de rotation du cylindre blanchet (24), un élément rotatif (30) étant entraîné par les moyens d'entraînement (28) à la même vitesse de rotation que le cylindre blanchet (24) ou à une vitesse de rotation proportionnelle à celle du cylindre blanchet, l'élément rotatif (30) pouvant coopérer avec le second détecteur (42) pour permettre à ce second détecteur de fournir un signal indiquant effectivement la position de rotation du cylindre blanchet.
9. Appareil selon la revendication 8, caractérisé en ce que les signaux provenant des premier et second détecteurs (39, 42) sont appliqués à des moyens de comparateur (38) fournissant un signal de sortie utilisé pour commander la transmission variable (13).
10. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif (19) est utilisé pour placer l'élément (W) dans une disposition prédéterminée en aval des moyens d'extraction (14), ce dispositif (19) étant entraîné de manière à fonctionner à la même vitesse que les moyens d'extraction.
11. Appareil selon la revendication 1, caractérisé en ce que les moyens d'alimentation (6) et les moyens d'extraction (15) sont entraînés par des moyens d'entraînement se présentant sous la forme d'un moteur (80) commun aux deux, et en ce que les moyens permettant d'effectuer l'opération sur l'élément, sont entraînés par un autre moteur (85), les moyens (38) fonctionnant en réponse aux moyens de détection (39, 42) étant montés de manière à commander la vitesse relative des moteurs.
12. Procédé pour faire varier la position d'une opération effectuée sur un élément mobile allongé (W), comprenant les différentes étapes consistant à assurer l'alimentation de l'élément à une vitesse voulue, à effectuer l'opération sur l'élément ainsi alimenté, à extraire l'élément sur laquel l'opération a été effectuée, et à détecter les positions relatives de l'élément et de l'opération effectuée sur celui-ci, procédé caractérisé en ce qu'il consiste à régler simultanément la vitesse d'alimentation et la vitesse d'extraction de manière à entraîner l'élément (W) par rapport aux moyens (22) effectuant l'opération, sans produire la moindre variation de tension dans l'élément, si les positions relatives ci-dessus sont incorrectes.
EP82301494A 1982-01-26 1982-03-23 Appareil et méthode pour varier l'emplacement d'une opération effectuée sur un élément allongé mobile Expired EP0084698B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82301494T ATE22268T1 (de) 1982-01-26 1982-03-23 Apparat und methode zum variieren der lage einer operation, welche auf einem langen beweglichen element durchgefuehrt wird.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8202112 1982-01-26
GB8202112 1982-01-26

Publications (2)

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EP0084698A1 EP0084698A1 (fr) 1983-08-03
EP0084698B1 true EP0084698B1 (fr) 1986-09-17

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EP (1) EP0084698B1 (fr)
AT (1) ATE22268T1 (fr)
DE (1) DE3273272D1 (fr)

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IT1199707B (it) * 1986-12-05 1988-12-30 Rey Francis Macchina automatica di raddrizzamento autocentrante per un tessuto continuo,in particolare abbinabile in linea a macchine di finissaggio tessile o ad una macchina da stampa
FR2623127A1 (fr) * 1987-11-12 1989-05-19 Sarda Jean Claude Dispositif d'alimentation et de reception d'une bande continue destine aux presses a imprimer du type feuille a feuille
IT1249030B (it) * 1990-06-29 1995-02-11 Giancarlo Arici Macchina rotativa da bobina per la sovrastampa
DE4344896C5 (de) * 1993-12-29 2004-07-29 Maschinenfabrik Wifag Antrieb für Zylinder einer Rollenrotationsdruckmaschine
ES2175867T3 (es) † 1993-12-29 2002-11-16 Wifag Maschf Maquina de impresion rotativa.

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Publication number Priority date Publication date Assignee Title
GB1262116A (en) * 1969-04-21 1972-02-02 Bobst Fils Sa J Inserter and splicer with register control for a preprinted web
BE789456A (fr) * 1971-10-08 1973-01-15 Bobst Fils Sa J Procede et dispositif de correction du reperage d'images dans une machine a plusieurs stations
FR2320185A1 (fr) * 1975-08-08 1977-03-04 Chambon Machines Dispositif de reperage des couleurs pour impression sur materiaux legers
DE2803737C2 (de) * 1978-01-28 1982-06-09 Gebr. Ditzel Gmbh, 6901 Bammental Verfahren zum rapporthaltigen Aufbringen eines Beschichtungsmaterials auf den Rapportvordruck einer Bahn
DE2926448A1 (de) * 1978-06-29 1980-01-10 Moulton Successors Registersteuerung

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EP0084698A1 (fr) 1983-08-03
ATE22268T1 (de) 1986-10-15
DE3273272D1 (en) 1986-10-23

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