EP0174423A1 - Dispositif pour appliquer des images imprimées limitées en longueur sur une bande de carton ondulé - Google Patents

Dispositif pour appliquer des images imprimées limitées en longueur sur une bande de carton ondulé Download PDF

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Publication number
EP0174423A1
EP0174423A1 EP19850102136 EP85102136A EP0174423A1 EP 0174423 A1 EP0174423 A1 EP 0174423A1 EP 19850102136 EP19850102136 EP 19850102136 EP 85102136 A EP85102136 A EP 85102136A EP 0174423 A1 EP0174423 A1 EP 0174423A1
Authority
EP
European Patent Office
Prior art keywords
speed
cylinder
printing cylinder
printing
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19850102136
Other languages
German (de)
English (en)
Inventor
Manfred Schommler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Werner H K Peters Maschinenfabrik GmbH
Original Assignee
Werner H K Peters Maschinenfabrik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Werner H K Peters Maschinenfabrik GmbH filed Critical Werner H K Peters Maschinenfabrik GmbH
Publication of EP0174423A1 publication Critical patent/EP0174423A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2822—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard involving additional operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/14—Registering devices with means for displacing the cylinders

Definitions

  • the formats produced in a corrugated cardboard system are already printed, for example with a label and / or decoration desired by the customer.
  • a cover sheet can run through a printing machine arranged in the corrugated cardboard machine.
  • the circumferential speed of the printing cylinder must be equal to the web speed, otherwise the print image will be blurred.
  • a different diameter of the printing cylinder is therefore available for each format watch. Since very different formats are used in known corrugated cardboard systems, such a printing process is therefore extremely complex. In addition, no printing can be carried out with such formats, the length of which is smaller than the circumference of the printing cylinder.
  • the known printing method is not justifiable in terms of its expenditure for those printing processes in which limited printed images, markings, bar codes or the like are to be printed.
  • markings are stamped or printed in order to control the cross cutter, which is known to determine the format length.
  • the corrugated cardboard manufacturers want an advertising company stamp to be printed.
  • bar code which provides information about the content, value, etc. of the packaged goods in sales.
  • Such prints with the exception of the markings for controlling the cross cutter, are usually only applied after the formats have been stacked and sorted.
  • Such a method is complex since an additional method step is necessary.
  • the invention is therefore based on the object of providing a device with which the length-limited print images can be applied to different format lengths at any feed speeds without retooling.
  • the printing cylinder is part of the corrugated cardboard system and the second cover sheet is guided over the printing cylinder, the second cover sheet is assigned a speed measuring device, the speed of the drive can be changed cyclically per revolution and a control or regulating device is provided, which the rotational position of the printing cylinder is detected and the drive speed is regulated as a function of the rotational position, the web speed and the length of the printed image.
  • the diameter of the printing cylinder is selected so that its circumference is greater than the length of the printed image, in particular that the latter preferably only makes up a fraction of the circumferential length of the printing cylinder. If the printing cylinder is driven by a drive whose speed can be changed per revolution, it is sufficient if the printing cylinder only rotates at web speed during the printing process. In the remaining time, the drive speed of the printing cylinder can be regulated according to the requirements. In the case of very large format lengths with corresponding distances between the printed images, the speed between the periodic printing processes can be reduced or even brought to zero. Is on the other hand, the distance between the printed images is smaller than the circumferential length of the printing roller, this is driven between successive printing processes at an increased speed so that it only runs at web speed during the printing process and thereby maintains the printing distance length.
  • the device according to the invention is integrated in a corrugated cardboard system, so a special work step is not required for printing the formats with length-limited print images, such as markings, bar codes, stamps etc.
  • length-limited print images such as markings, bar codes, stamps etc.
  • any desired length of format can be printed in the desired manner, without the need for retrofitting, except for changing a cliché or the like in accordance with the new desired print image. If the same stamp imprints, bar codes etc. are required for different formats, no change to the printing unit is necessary.
  • the control variable for the drive which can change continuously during one revolution, depends on several parameters: the length of the printing image, the spacing of the printing images in succession, the speed of the second cover web and the rotational position of the printing cylinder relative to the second cover sheet.
  • these parameters are easy to determine.
  • the web speed can be determined with the aid of a suitable scanning device or the like.
  • the length of the printed images and their spacing are predetermined sizes.
  • the relative position of the printing cylinder can also be determined with the aid of a suitable transmitter mechanism.
  • the control variable for the drive during one revolution can therefore be calculated in a simple manner, the course of the control variable not changing for the further revolutions if the parameters remain the same.
  • control variable is expediently determined by a microprocessor or the like.
  • an electric motor that runs at a constant speed can be used for the drive, in that it is coupled to the pressure cylinder via a continuously variable, unevenly geared transmission.
  • the output signal of the microprocessor is converted in the usual way into a mechanical adjustment signal for the continuously variable transmission.
  • a DC motor that can be cyclically controlled is preferable.
  • the pressure cylinder is expediently between unrolling the second cover sheet and arranged the commissioned work.
  • An embodiment of the invention is particularly advantageous in which the preheating cylinder serves as a counter cylinder for the printing cylinder. As a result, the effort for the printing unit is kept particularly low.
  • one embodiment of the invention provides that a plurality of printing cylinders are provided transversely to the running direction of the second cover sheet with a separate, controllable drive.
  • a corrugated cardboard web produced in a corrugated cardboard plant is divided into individual uses in the slitting and creasing machine. Each panel can be cut into different format lengths in the sheeter.
  • a printing cylinder with a separate drive can be assigned to each benefit in order to apply the desired prints which are limited in length.
  • the preheater is designated 10. It has preheating cylinders 11, 12, 13 which are arranged in a known manner one above the other for the one-sided webs 14, 15 and the second cover sheet 16. After the preheater, the one-sided webs 14 and 15 are fed to an applicator unit 17 in a known manner. They then arrive in a gluing machine 18 known per se, into which the second cover sheet 16, passing through the applicator unit 17 via deflection rollers, is also introduced.
  • a measuring roller 19 is assigned to the second cover sheet 16. It is connected to a speed measuring device (not shown) which is a function of the speed of the second cover sheet 16 dependent signal generated.
  • the lower preheating cylinder 13 is assigned a pressure cylinder 20 so that the preheating cylinder 13 serves as a counter cylinder for the pressure cylinder 20.
  • the drive and the mode of operation of the pressure cylinder 20 will be discussed further below.
  • the pressure cylinder 20 can extend over the entire width of the webs 14 to 16. However, a plurality of printing cylinders 20 are preferably arranged next to one another, corresponding to the individual uses into which the finished corrugated cardboard web is divided in the creasing and cutting machine. It is also possible to arrange several printing cylinders offset transversely to the running direction so that they overlap. In any case, each pressure cylinder is connected to a separate, controllable drive.
  • the preheating cylinder 13 can also be arranged directly in front of the gluing machine 18, as indicated by dashed lines at 13 '. This has the further advantage that the distance between the preheating cylinder and the gluing machine is relatively short and the energy to be supplied to the preheating cylinder can therefore be reduced.
  • a pressure cylinder 20 ' is also assigned to the preheating cylinder 13', as is also shown in dashed lines. In this case too, the preheating cylinder 13 'serves as a counter cylinder for the printing cylinder 20'. With respect to the printing cylinder 20 ', the same as that applies to the printing cylinder 20 said.
  • FIG. 2 shows a pressure cylinder 20 which is driven by a direct current motor 21.
  • a cliché 22 the length of which is designated by L, is shown in dash-dot lines on the printing cylinder 20.
  • the task of the printing cylinder 20 is to periodically print a printing image on the cover web 16 in the form of a company stamp, a marking, a bar code, etc. In any case, the length of the printing image L is significantly smaller than the circumference U of the printing cylinder 20.
  • the control of the DC motor 21, which is a cyclically controllable DC drive which is known per se, is carried out via a computer 23.
  • Encoder 24 is connected to DC motor 21 and generates pulses as a function of the angle of rotation of the DC motor 21.
  • the computer 23 calculates the rotational speed and the rotational position of the motor shaft and thus also of the printing cylinder 20.
  • a signal proportional to the web speed of the second cover web 16 is input via the measuring roller 19.
  • the computer also contains the parameters for the length L of the print image 22, the distance A between successive print images on the web 16 and the circumferential length U of the printing cylinder 20.
  • the computer 23 calculates a control signal that has different values during one revolution may take as below with reference to FIG. 3 and explained in 1 1, but during the Printing process is constant and corresponds to the web speed.
  • the feed speed of the webs 14 to 16 in a corrugated cardboard system is normally constant, although it can take on different sizes.
  • the web speed is determined with the aid of the measuring roller 19.
  • the web speed V web is shown in FIGS. 3 and 4 as a constant speed. It has already been explained that during the printing process the peripheral speed of the printing cylinder 20 must be approximately equal to the web speed V web , since otherwise there would be undesirable blurring. On the other hand, the peripheral speed of the printing cylinder need only have the web speed in the time in which the cliché rolls over the length L on the cover web 16. In the intervals between successive printing processes, the peripheral speed of the printing cylinder 20 can theoretically be arbitrary. It is only necessary to ensure that the next time the printing is started, the cliché is at the desired location on the cover web 16 and at this point the circumferential speed of the printing cylinder 20 corresponds to the web speed.
  • FIG. 3 shows a curve 25 which shows different peripheral speeds of the printing cylinder 20.
  • the speed curve 25 is characterized in that it periodically over the Length L is equal to the web speed V web .
  • the curve 25 therefore shows the course of the control signal V Soll of the computer for the DC motor 21.
  • the speed of the curve 25 is much higher between the intervals in which it lies at the web speed, ie the pressure cylinder 20 is accelerated and decelerated again between the intervals.
  • a distance length of the individual print images can be achieved which is more or less smaller than the circumferential length of the printing cylinder.
  • the curve 26 according to FIG. 4 shows the opposite case, in which the circumferential length of the printing cylinder is smaller than the distance A between the printed images.
  • the motor 21 stands still between the individual printing processes. If the motor 21 is driven with the maximum possible acceleration and deceleration, the same gradients result for the curves 25 and 26.
  • the length of a printed image and the spacing of the printed images in accordance with the formats to be driven in the corrugated cardboard system are predetermined.
  • the web speed is determined by the measuring roller 19.
  • the circumferential length of a printing cylinder 20 is also predetermined.
  • the position of the pressure cylinder relative to the second cover sheet is determined with the aid of the transmitter 24.
  • the computer 23 thus has all the variables in order to calculate the desired control signal V Sol1 in accordance with the exemplary curves 25 and 26 and to transmit it to the DC motor 21.
  • the printing process carried out with the printing cylinder can be of any type and of a known type.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP19850102136 1984-09-05 1985-02-27 Dispositif pour appliquer des images imprimées limitées en longueur sur une bande de carton ondulé Withdrawn EP0174423A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843432587 DE3432587A1 (de) 1984-09-05 1984-09-05 Vorrichtung zum aufbringen von in der laenge begrenzten druckbildern auf eine wellpappenbahn
DE3432587 1984-09-05

Publications (1)

Publication Number Publication Date
EP0174423A1 true EP0174423A1 (fr) 1986-03-19

Family

ID=6244673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850102136 Withdrawn EP0174423A1 (fr) 1984-09-05 1985-02-27 Dispositif pour appliquer des images imprimées limitées en longueur sur une bande de carton ondulé

Country Status (2)

Country Link
EP (1) EP0174423A1 (fr)
DE (1) DE3432587A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271962A (en) * 1992-11-02 1994-05-04 Hussain Matlub Controlling a printing unit in response to the sensed speed of the substrate therethrough.
WO2000034041A1 (fr) * 1998-12-04 2000-06-15 Giuseppe Mazzotti Machine a imprimer pour formats variables et procede d'impression associe
EP1459878A2 (fr) * 2003-03-21 2004-09-22 BHS Corrugated Maschinen-und Anlagenbau GmbH machine de fabrication de carton ondulé et fabrication des feuilles en carton ondulé
US11034141B2 (en) * 2017-09-21 2021-06-15 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Corrugated cardboard plant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037665A (en) * 1990-03-29 1991-08-06 Enamel Products & Plating Company Method of creating a registered pattern on a metal coil and associated apparatus
AT406491B (de) * 1998-12-29 2000-05-25 Pms Elektrotechnik Gmbh Markiervorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2720302A1 (de) * 1977-05-06 1978-11-09 Egon Brueckmann Verfahren zur herstellung von bedruckter wellpappe sowie dieselbe
DE2745854B2 (de) * 1977-10-12 1979-10-31 Vepa Zellstoff- Und Papier-Holding Ag, Glarus (Schweiz) Wellpappenanlage zum Herstellen bedruckter Wellpappenzuschnitte
US4334471A (en) * 1980-08-18 1982-06-15 Markem Corporation Reference printing on moving surface

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2720302A1 (de) * 1977-05-06 1978-11-09 Egon Brueckmann Verfahren zur herstellung von bedruckter wellpappe sowie dieselbe
DE2745854B2 (de) * 1977-10-12 1979-10-31 Vepa Zellstoff- Und Papier-Holding Ag, Glarus (Schweiz) Wellpappenanlage zum Herstellen bedruckter Wellpappenzuschnitte
US4334471A (en) * 1980-08-18 1982-06-15 Markem Corporation Reference printing on moving surface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, Sektion M, Band 7, Nr. 110, 13. Mai 1983 THE PATENT OFFICE JAPANESE GOVERNMENT * JP - A - 58-29 674 ( MITSUBISHI JUKOGYO K.K. ) * *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2271962A (en) * 1992-11-02 1994-05-04 Hussain Matlub Controlling a printing unit in response to the sensed speed of the substrate therethrough.
WO2000034041A1 (fr) * 1998-12-04 2000-06-15 Giuseppe Mazzotti Machine a imprimer pour formats variables et procede d'impression associe
EP1459878A2 (fr) * 2003-03-21 2004-09-22 BHS Corrugated Maschinen-und Anlagenbau GmbH machine de fabrication de carton ondulé et fabrication des feuilles en carton ondulé
EP1459878A3 (fr) * 2003-03-21 2005-10-12 BHS Corrugated Maschinen-und Anlagenbau GmbH machine de fabrication de carton ondulé et fabrication des feuilles en carton ondulé
US11034141B2 (en) * 2017-09-21 2021-06-15 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Corrugated cardboard plant

Also Published As

Publication number Publication date
DE3432587A1 (de) 1986-03-13

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Inventor name: SCHOMMLER, MANFRED