EP1938972A1 - Offset-Druckerpresse mit Regulierung der Schneideklappe und entsprechendes Verfahren - Google Patents

Offset-Druckerpresse mit Regulierung der Schneideklappe und entsprechendes Verfahren Download PDF

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Publication number
EP1938972A1
EP1938972A1 EP07291470A EP07291470A EP1938972A1 EP 1938972 A1 EP1938972 A1 EP 1938972A1 EP 07291470 A EP07291470 A EP 07291470A EP 07291470 A EP07291470 A EP 07291470A EP 1938972 A1 EP1938972 A1 EP 1938972A1
Authority
EP
European Patent Office
Prior art keywords
printing unit
press
cylinder
printing
configuration
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.)
Granted
Application number
EP07291470A
Other languages
English (en)
French (fr)
Other versions
EP1938972B1 (de
Inventor
François Vidaillac
Jean-Philippe Lecomte
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.)
Goss International Montataire SA
Original Assignee
Goss International Montataire SA
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 Goss International Montataire SA filed Critical Goss International Montataire SA
Publication of EP1938972A1 publication Critical patent/EP1938972A1/de
Application granted granted Critical
Publication of EP1938972B1 publication Critical patent/EP1938972B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/60—Folding or cutting crosswise
    • 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
    • B41P2213/70—Driving devices associated with particular installations or situations
    • B41P2213/73—Driving devices for multicolour presses
    • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/10—Starting-up the machine
    • B41P2233/13—Pre-registering

Definitions

  • the invention applies, in particular, to shaftless presses, that is to say where the drive of the printing units is provided by respective independent electric motors which are synchronized with each other.
  • the cutting device which usually belongs to a folder, is also provided with a respective independent electric motor.
  • Such presses are known, particularly documents GB-2 149 149 and EP-699,524 .
  • the shaftless presses also have advantages related to the settings of the registers, and in particular to the adjustment of the cutting register. This setting can indeed be made without the full-width compensators that were generally interposed between the printing units and the folder.
  • each plate cylinder is brought into a predetermined angular position making it possible to reach the desired cutting register and thus to ensure that the cross-section is engaged. at the right longitudinal location between all the images successively printed on the paper tape by the printing units.
  • the plate cylinders of the printing units are slowed or accelerated while the paper web is clamped between their blanket cylinders and the corresponding pressure cylinders.
  • This may for example be the case in case of change of path of the paper strip downstream of the printer groups.
  • An object of the invention is to solve this problem by providing a press of the aforementioned type for changing the setting of the cutting register by limiting the amount of paper wasted.
  • the figure 1 illustrates an offset printing press 1 which comprises mainly, and successively along the running direction of the web 3, a unwinder 5, printing units 7, 9, 11 and 13, partial width compensators 15 and 17 for adjusting the respective cutting registers of strips 19 and 21 cut longitudinally in the strip 3, and a folder 23.
  • the press 1 does not include a dryer / cooler, but this may be the case in some variants.
  • the press 1 may not include partial width compensators 15 and 17.
  • the press 1 comprises four printing units 7, 9, 11 and 13, but this number may be different, especially if the press is a so-called Auto Transfer press (registered trademark).
  • the press may also include other tape drive devices 3, such as rollers.
  • a computer control system 25 which is on the one hand connected to these various functional elements and which is other part connected, in the example shown, to a sensor 27.
  • This sensor 27 is a marking mark detection sensor printed on the strip 3 by the units 7, 9, 11 and 13 to regulate the registers, as this will be described later.
  • the press 1 may not include a sensor 27.
  • the printing unit 7 comprises two printing groups, namely an upper printing unit 29 and a lower printing unit 31.
  • Each group 29, 31 comprises a plate cylinder 33, which can carry one or several plates and a blanket cylinder 35, which can carry one or more blankets.
  • the blanket cylinder 35 of the lower printing unit 31 acts as a pressure cylinder for the upper printing unit 29 and vice versa.
  • the printing unit 7 is therefore a blanket against blanket printing unit.
  • the press 1 is a shaftless press, that is to say that all the printing units 7, 9, 11 and 13 and the folder 23 each have at least one respective independent electric drive motor 37 .
  • each printing unit can have a single respective electric motor, which drives the two printing units 29 and 31. It is also possible to provide a respective drive motor for each printing unit 29 and 31. In this case, for each printing unit, the motor can, for example, drive the blanket cylinder 35 through the plate cylinder 33 of the printing unit in question.
  • the printing unit 7 of the Figures 2 and 3 comprises a mechanism 39 for supporting and moving the cylinders 33 and 35, which mechanism 39 is carried by the frame 41 of the unit 7.
  • this frame 41 comprises two side walls between which the plate cylinders 33 and holder blanket 35 are arranged.
  • the displacement mechanism 39 comprises arms 43 for receiving the plate cylinders 33 and arms 45 for receiving the blanket cylinders 35.
  • An arm 43 is disposed at each end of a cylinder 33 and an arm 45 is disposed at each end of a cylinder 35.
  • the cylinders 33 and 35 can be journalled in the arms 43 and 45 about their axes in the arms 43 and 45.
  • the arms 43 and 45 are hinged to the frame 41 to enable them to pivot relative to the frame parallel to the axes of the plate cylinders 33 and blanket holder 35.
  • the displacement mechanism 39 comprises actuators, for example pneumatic cylinders, for manipulating the arms 43 and 45.
  • the printing unit 7 has an in-press configuration illustrated by the figure 2 and at least one off-pressure configuration illustrated by the figure 3 .
  • the plate cylinders 33 and the blanket holder 35 are pressed against each other and the paper web 3 can thus be clamped between the two blanket cylinders 35 to be printed.
  • the printing units 29 and 31 have been moved so that the blanket cylinders 35 are spaced from each other and delimit between them a space 47 in which the band 3 can pass. freely.
  • this space 47 is large enough for the strip 3 to pass through without touching the blanket cylinders 35.
  • this feature is not essential.
  • the upper arms 43 and 45 have for example pivoted upwards and the lower arms 43 and 45 have for example pivoted downwards.
  • the plate cylinder 33 and the blanket cylinder 35 of the same printing unit are in contact with each other, but this is not necessarily the case.
  • the printing unit 7 may also have in addition to or in place of the off-pressure configuration of the figure 3 , out-of-pressure configurations in which the plate cylinders 33 and blanket carriers 35 of groups 29 and 31 are spaced from each other.
  • the mechanism 39 for supporting and moving cylinders 33 and 35 may have a structure other than that described above and can for example, allow a passage from one configuration to another by moving only some of the cylinders.
  • an inking system 49 and a humidification system 51 are associated with each printing unit 29, 31.
  • such systems 49 and 51 have only been shown for the group lower print 31 on the figure 2 .
  • the units 7, 9, 11 and 13 are in the pressure configuration.
  • the cylinders of the printing units 29 and 31 are rotated about their respective axes and the web 3 is scrolled.
  • the plates carried by the plate cylinders 33 of the printing units 7, 9, 11 and 13 are moistened and then inked by the inking systems 49 and humidification 51. These plates transfer the ink from their printers to the blankets carried by the cylinders 35, which in turn decal the ink on the strip 3 which is thus printed on both sides.
  • the blanket cylinders 35 each print, because of their rotation about their respective axes, successively the same image on the strip 3.
  • the paper web 3 is cut longitudinally to form ribbons 19 and 21 of partial widths. These strips 19 and 21 are, in the example shown, superimposed and cut transversely in the folder 23 between the successive images printed on the strip 3.
  • the sensor 27 transmits detection mark detection signals printed on the strip 3 by the units 7, 9, 11 and 13. From these signals, and in a conventional manner, the control system 25 detects possible cutting register and circumferential register errors, that is to say the longitudinal component of the color register. The system corrects these register errors by increasing or decreasing the drive speeds of the plate cylinders 33 of the cylinders of the units 7, 9, 11 and 13.
  • the system 25 thus implements regulating loops of cutting and circumferential registers.
  • the compensators 15 and 17 furthermore make it possible to adjust the cutting register of each of the ribbons 19 and 21. Indeed, these registers can not be adjusted independently of one another by rotation of the cylinders of the printing units 7, 9, 11 and 13.
  • the press 1 may comprise, in addition to the folder 23, other cutting devices or additional modules, such as a perforation group, a subculture group, etc.
  • the band 3 can then borrow conventionally one of several paths depending on the elements to be crossed or bypass.
  • the correction of the cutting register to be performed may be important. This correction will be ensured by a slowdown or a temporary acceleration of the plate cylinders 33 of the printing units 7, 9, 11 and 13.
  • the operator may also be required to initiate a modification of the setting of the cutting register by acceleration or deceleration of the cylinders of the printing units 7, 9, 11 and 13, for example if he visually detects a register error.
  • the operator actuates an input device of the cutting register modification to be performed, for example a key of a console 53 of the system 25 .
  • the system 25 then controls the execution of the method illustrated by the flow chart of the figure 4 .
  • a first step 55 the amplitude of the requested modification is compared with a threshold value. If the amplitude of the requested change is less than this threshold value then step 57 is performed.
  • the paper strip 3 is therefore always pinched between the blanket cylinders 35 and continues to scroll, as when printing.
  • the amplitude of the requested change is greater than the threshold value, which will be the case, for example, during a change of band path 3, steps 61, 63, 65, 67 and 69 are performed.
  • step 61 the control loops of the cut register and the circumferential register are deactivated.
  • step 63 the inking 49 and fountain 51 are deactivated and then the printing units 7, 9, 11 and 13 go into an off-press configuration.
  • the paper web 3 is no longer pinched between the blanket cylinders 35.
  • step 65 the correction of the cutting register is performed by slowing down or accelerating the cylinders of the printing units, and in particular the plate cylinders 33.
  • the strip 3 no longer being in contact with the blanket cylinders 35 , this slowing down or this acceleration has no effect on the paper web 3.
  • the slowing down or the acceleration can be much greater than in step 57 or in the state of the art, without risking for as much to break the band 3 or without risk of causing a jam in the folder 23.
  • the actual modification step 65 of the cut register can therefore be very short, even for a high amplitude change.
  • step 67 the printing units 7, 9, 11 and 13 are put back into the pressure configuration and the inking 49 and wetting 51 systems are reactivated.
  • step 69 the control loops of the various registers are reactivated.
  • Such a method may advantageously be implemented on presses 1 which are not adapted to ensure a pre-adjustment of the cutting register and / or which do not provide regulation of the cutting register.
  • steps 63 and 67 do not necessarily imply activation and deactivation of inking 49 and wetting systems 51.
  • the printing units do not necessarily have the structure described above and may comprise a number of printing group (s) different from that described above, possibly arranged around a central pressure cylinder and common . It can thus be structures in Y, U, H, ....
  • the folder 23 may for example be replaced by a simple cutting device.
  • the amplitude of a cutting register correction to be performed can be, in certain variants, determined automatically from a signal supplied by the sensor 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
EP07291470A 2006-12-26 2007-12-07 Offset-Druckerpresse mit Regulierung der Schneideklappe und entsprechendes Verfahren Not-in-force EP1938972B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0611380A FR2910375B1 (fr) 2006-12-26 2006-12-26 Presse d'impression offset a reglage du registre de coupe et procede correspondant.

Publications (2)

Publication Number Publication Date
EP1938972A1 true EP1938972A1 (de) 2008-07-02
EP1938972B1 EP1938972B1 (de) 2011-05-25

Family

ID=38051576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07291470A Not-in-force EP1938972B1 (de) 2006-12-26 2007-12-07 Offset-Druckerpresse mit Regulierung der Schneideklappe und entsprechendes Verfahren

Country Status (3)

Country Link
US (1) US20080173195A1 (de)
EP (1) EP1938972B1 (de)
FR (1) FR2910375B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100116159A1 (en) * 2008-11-13 2010-05-13 Larry Hines Offset Printing Unit with Plate Cylinder Drive
ES2395182B1 (es) * 2011-08-12 2013-11-28 Comexi Group Industries, Sau Método para controlar la operación de una máquina impresora y máquina impresora flexográfica para su implementación.
CN103158415B (zh) * 2013-03-13 2016-02-10 辽宁超烁图码科技板业有限公司 改进的多色花纹辊涂彩钢板的生产方法
CN103507410B (zh) * 2013-09-17 2016-06-01 达成包装制品（苏州）有限公司 瓦楞纸箱印刷机生产管理***
CN107618261A (zh) * 2017-11-24 2018-01-23 广东惠利普路桥信息工程有限公司 一种生产管理***

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964387A (en) 1972-08-31 1976-06-22 Veb Polygraph Druckmaschinenwerke Leipiz Apparatus for continuously printing uncased folded books
GB2149149A (en) 1983-10-28 1985-06-05 Rockwell Graphic Syst Printing press synchronization
EP0699524A2 (de) 1994-08-30 1996-03-06 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Offsetdruckmaschine
EP1172206A1 (de) * 2000-07-13 2002-01-16 Heidelberger Druckmaschinen Aktiengesellschaft Einrichtung zum Einführen von Materialbahnen in Förderpfade von Rotationsdruckmaschinen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3182140B2 (ja) * 1999-09-14 2001-07-03 株式会社東京機械製作所 多色刷平版輪転機における胴逃がし・胴入れ制御装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964387A (en) 1972-08-31 1976-06-22 Veb Polygraph Druckmaschinenwerke Leipiz Apparatus for continuously printing uncased folded books
GB2149149A (en) 1983-10-28 1985-06-05 Rockwell Graphic Syst Printing press synchronization
EP0699524A2 (de) 1994-08-30 1996-03-06 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Offsetdruckmaschine
EP1172206A1 (de) * 2000-07-13 2002-01-16 Heidelberger Druckmaschinen Aktiengesellschaft Einrichtung zum Einführen von Materialbahnen in Förderpfade von Rotationsdruckmaschinen

Also Published As

Publication number Publication date
FR2910375B1 (fr) 2009-10-30
US20080173195A1 (en) 2008-07-24
EP1938972B1 (de) 2011-05-25
FR2910375A1 (fr) 2008-06-27

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