EP0114393B1 - Verfahren und Vorrichtung zur passgerechten Zuführung von Bogen an bogenverarbeitenden Maschinen - Google Patents

Verfahren und Vorrichtung zur passgerechten Zuführung von Bogen an bogenverarbeitenden Maschinen Download PDF

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Publication number
EP0114393B1
EP0114393B1 EP83113058A EP83113058A EP0114393B1 EP 0114393 B1 EP0114393 B1 EP 0114393B1 EP 83113058 A EP83113058 A EP 83113058A EP 83113058 A EP83113058 A EP 83113058A EP 0114393 B1 EP0114393 B1 EP 0114393B1
Authority
EP
European Patent Office
Prior art keywords
sheet
scanning device
sheets
aligned
edge
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.)
Expired
Application number
EP83113058A
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German (de)
English (en)
French (fr)
Other versions
EP0114393A1 (de
Inventor
Willi Jeschke
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.)
Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Filing date
Publication date
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0114393A1 publication Critical patent/EP0114393A1/de
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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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/20—Assisting by photoelectric, sonic, or pneumatic indicators

Definitions

  • the invention relates to a method for the appropriate feeding of sheets to sheet-processing machines, in which the sheet is moved perpendicularly to the sheet edge to be aligned with the aid of an aligning device after covering part of a scanning device or passing through this scanning device.
  • a measuring head is used for the detection of the sheet position, which is designed in such a way that a separate value can be assigned to each partial area within a measuring area.
  • the degree of coverage of the measuring range is recognized and a signal corresponding to the current sheet position is generated, on the basis of which the respective side orientation must be calculated.
  • the measuring head must be adjusted so that the incoming sheet can still be offset so that the theoretical sheet inlet is in the middle of the measuring range.
  • the scanning device consists of at least one sensor and one receiver each, the scanning device being arranged between the grippers of the printing cylinder for scanning the leading edge of the sheet.
  • the adjustable front marks are then used to align the sheet via switching means.
  • a disadvantage of this device is the complex construction of the adjustable front marks for sheet alignment. Above all, however, devices with a large mass cannot be used for fast movement processes with precise control.
  • DE-OS 30 33 780 AI a method for controlling the arrival of sheets at the inlet of printing presses is described.
  • the respective arrival of the arch is monitored within predetermined time intervals.
  • a signal transmitter is provided which triggers an adjustment of the sheet feed.
  • it is known to monitor the arrival of the individual sheets at the landing stage by means of electro-optical scanning means to determine whether they occur at predetermined time intervals, i.e. lies within a predetermined angle of rotation range of a machine roller. There is an automatic machine shutdown if the sheet arrival falls outside the tolerance range.
  • the time available for aligning an arch also depends on the scaling of the arch that is to be brought into contact.
  • the side alignment of an arch must always be done so quickly and in time that the same can be done with the subsequent arch of the scale.
  • the lateral pulling process can only take place when the trailing edge of the sheet to be peeled has left the effective area of the side mark.
  • British Patent G B-PS 1 323 868 describes a method for checking sheets printed with register. This check is carried out before or in each printing unit, taking into account the respective reference lines. A position deviation measurement is carried out on the sheet, and digital correction pulses corresponding to the position differences are then transmitted to the actuators. It is disadvantageous that any positional deviation of the sheets from the desired position requires a measurement-related acquisition and a dependent adjustment of the sheet transport means, which also have relatively large masses.
  • the task is to eliminate the shortcomings of the known methods and devices, especially to reduce the masses to be moved during the alignment. Furthermore, an out straightening process aimed at protecting the sheet edges, as well as without stops and side marks.
  • the object is achieved in that the sheet edge to be aligned passes the measuring zone of the scanning device during the sheet conveyance, thereby completely covering it and an alignment movement initiates that the sheet edge to be aligned releases the measuring zone, which generates a signal that causes the alignment device to move the sheet by one to move the predetermined constant distance into the exact position.
  • a further solution to the problem is given by the fact that the sheet edge to be aligned passes the measuring zone of the scanning device during sheet conveying and does not cover this, that the sheet performs a movement initially in the direction of the scanning device and then a movement away from the scanning device and consequently with the edge twice the measuring zone of the scanning device passes, and that the two signals generated in this way are used to initiate the constant alignment movement towards the precisely fitting position.
  • the device for carrying out the method is characterized in that a scanning device consists of at least one sensor, that triggered digital control electronics are provided for processing the generated signals and forwarding them, and that an alignment device for executing the arc movement corresponding to the signals is provided, which is coupled to the digital control electronics and which moves the sheet into the predetermined precisely fitting position is provided.
  • the method according to the invention is particularly suitable for a flowing sheet feeder.
  • the method according to the invention can be applied to scale feeders in a simple manner, because the scanning device is ready for the next alignment process before the previously aligned sheet has to be removed.
  • One embodiment of the invention consists in the fact that the sheet edge initially covers the scanning device by means of the alignment movement, but then releases it again. It is necessary that the sheet first performs a movement in the direction of the scanning device and then a movement away from the scanning device, consequently with the edge twice passing through the measuring zone of the scanning device, and that the two signals generated thereby initiate the alignment movement towards the precisely fitting position be used. In this embodiment, it is not necessary to move the stack laterally. The tolerance range of the sheet layers in the scale transverse to the conveying direction with the shortest possible alignment distance can then be extended if the sheets of the scale before the initiation of the alignment movement guided in the direction of the scanning device both cover and do not cover the measuring zone. Again, it is not necessary to move the stack laterally.
  • FIG. 1 the sheet transport to a first printing unit, not shown, of a sheet processing machine is shown schematically.
  • the feed table 1, via which the sheets 2 are transported to the feed cylinder 3, is designed such that it is inclined toward the feed cylinder 3.
  • In the feed table 1 there are the outlet openings 4 for the suction air of an alignment device which is designed in the form of a laterally displaceable suction box 5.
  • the suction box 5 is coupled via a pipe socket 6 to a hose 7, which leads to a suction device, not shown.
  • a measuring slot 8 is arranged downstream of this suction box 5 in the feed table 2.
  • front marks 11 which can be folded down are arranged.
  • the uppermost sheets 2 of a stack of sheets, not shown, run over the inclined feed table 1 and are taken over by the feed cylinder 3 after alignment.
  • the front edge of the respective sheet 2 is placed on the front marks 11 and aligned.
  • FIG. 2 shows the side orientation for a sheet 13 supplied with a shingled stream, in which the sensors 9 are exposed by the alignment process.
  • the scale shown in Fig. 2 consists of a series of arches 13, which may have a slightly different position. However, all sheets of the scale, if they strike the front mark 11, must cover the sensors 9, for example as shown by the dash-dotted line 15. In this position, the sheet 14 bumped against the front mark 11. Then the sheet 14 was moved in accordance with the movement arrow 18 by the suction box 5 transversely to the sheet conveying direction. The left side edge of the sheet 14 has exceeded the measuring line 12 of the two sensors 9, as a result of which signals have been generated which cause the suction box 5 to only move the sheet by the defined distance 20. The position of the bow 14 shown in solid lines consequently shows its precisely aligned position.
  • the subsequent sheet 13 already covers the sensors 9 again. Its front edge abuts the front mark 11. Then the suction box 5 moves the sheet brought into the alignment position in the direction of arrow 18. The left side edge now also passes the measuring line 12 of the sensors 9, whereupon the suction box 5 only moves the sheet 13 around the fixed one Distance 20 transported, so that it also comes into the appropriate position, which the sheet 14 occupies in Fig. 2. The same procedure is followed for each subsequent bend in the scale. A condition for correct side alignment is that the respectively arriving sheet covers the sensors 9. The special position of the arch need no longer be determined, because after passing the measuring line 12 each arch is transported by the predetermined distance 20 in the direction of the arrow 18.
  • the front edge alignment can be carried out with the help of an additional sensor 16, as shown in FIG. 3, without fixed front marks 11.
  • This sensor 16 is indicated in the right area of the front edge of the sheet 14 to be aligned.
  • alignment of both the side edge and the front edge of the sheet can be carried out using their signals by means of special control of the suction box 5.
  • the sheets are fed into the scale in such a way that they either cover the sensors 9 or are guided past them laterally. In the event that the respective front sheet of the scale in the alignment area does not cover the sensors 9, an alignment movement in the direction of the sensors 9 must take place for signal generation.
  • FIG. 4 differs from that of FIG. 2 in that all the arches 13 of the scale, viewed in the direction of the arrow 17, are guided past the sensors 9 on the right. After placing the uppermost sheet 14 of the scale on the front mark 11, its left side edge had taken the dash-dotted line 21. Once the leading edge alignment has taken place, the suction box 5 moves the sheet 14 that has been applied, according to the double arrow 24, over the sensors 9 and back again into the extended position. Four signals are generated in the two sensors 9, which are averaged so that the averaged value of all four signals triggers the transport of the sheet by the predetermined distance 20. All subsequent sheets 13 are also initially guided laterally over the sensors 9 after the leading edge alignment and then conveyed back into the precise position of the sheet 14.
  • the measuring line 12 and thus the position of the sensors 9 can be changeable by means of a device, not shown.
  • This adjustment option allows, for example, the scanning device to be set to different sheet formats. Register errors can also be corrected using this device.
  • FIG. 5 shows a block diagram of the scanning device 25 for sheet monitoring.
  • This scanning device 25 consists of at least one sensor 9 and a triggered digital control electronics connected to this sensor 9. If the radiation 26 is interrupted by an incoming arc, i.e. there is an arc between the sensor 9 and the measuring slot 8, then the signal is processed.
  • the signal curve is shown in FIG. 6.
  • Time t is plotted on the abscissa and voltage U is plotted on the ordinate.
  • the voltage curve now looks as follows: At the starting point in time t o , the measuring line 12 is free, the voltage is U 1 . It retains its value until the time t j , since the measuring line 12 is covered by the arc at this moment. Within the short period of time t 1 to t 2 , the voltage drops to the value U o . The lower voltage value U o is maintained until the sheet is released again by the alignment movement, which occurs at time t 3 . Then the voltage rises again to the value U 1 . These periods are repeated each time a sheet edge is passed.
  • This voltage edge in the time period t 1 to t 2 is now used by the digital, triggered control electronics.
  • the voltage drop from U 1 to U o is generated by the arc edge passing through the radiation 26 in the sensor 9.
  • the signals generated in this way are now further processed by the signal from the operational amplifier ker 27, which also serves as a comparator, is amplified.
  • the amplified signal reaches a rectifier 29 via a bandpass filter 28.
  • the rectified useful signal is now triggered with the aid of the trigger 30 and fed via a gate 31 to the suction box 5 for executing the movement of the arc.

Landscapes

  • Registering Or Overturning Sheets (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP83113058A 1983-01-20 1983-12-23 Verfahren und Vorrichtung zur passgerechten Zuführung von Bogen an bogenverarbeitenden Maschinen Expired EP0114393B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3301722A DE3301722C2 (de) 1983-01-20 1983-01-20 Verfahren und Vorrichtung zur paßgerechten Zuführung von Bogen an bogenverarbeitenden Maschinen
DE3301722 1983-01-20

Publications (2)

Publication Number Publication Date
EP0114393A1 EP0114393A1 (de) 1984-08-01
EP0114393B1 true EP0114393B1 (de) 1986-10-29

Family

ID=6188695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83113058A Expired EP0114393B1 (de) 1983-01-20 1983-12-23 Verfahren und Vorrichtung zur passgerechten Zuführung von Bogen an bogenverarbeitenden Maschinen

Country Status (13)

Country Link
US (1) US4613125A (no)
EP (1) EP0114393B1 (no)
JP (1) JPS59142147A (no)
AT (1) AT393104B (no)
AU (1) AU567133B2 (no)
BR (1) BR8400226A (no)
CA (1) CA1225671A (no)
DE (2) DE3301722C2 (no)
DK (1) DK606083A (no)
ES (1) ES528046A0 (no)
MX (1) MX158294A (no)
NO (1) NO156285C (no)
ZA (1) ZA839164B (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4116409A1 (de) * 1991-05-18 1992-11-19 Roland Man Druckmasch Seitenmarken- und ueberziehkontrolle einer rotations-bogendruckmaschine

Families Citing this family (19)

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Publication number Priority date Publication date Assignee Title
FR2603265B1 (fr) * 1986-09-02 1988-12-02 Carnaud Emballage Sa Procede de controle de positionnement d'objets plats et machine de traitement de tels objets mettant en oeuvre ce procede
JPS63118254A (ja) * 1986-11-07 1988-05-23 Toppan Printing Co Ltd 印刷機給紙装置
DE4013401A1 (de) * 1990-04-26 1991-10-31 Binder & Co Masch Oppenweiler Verfahren zum einrichten und steuern einer falzmaschine
GB9119488D0 (en) * 1991-09-11 1991-10-23 Xerox Corp Sheet feeding apparatus with lateral registration
DE4201886C1 (no) * 1992-01-24 1993-07-08 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4221578A1 (de) * 1992-07-01 1994-01-05 Heidelberger Druckmasch Ag Vorrichtung und Verfahren zur Bogenerfassung
US5273274A (en) * 1992-09-04 1993-12-28 Xerox Corporation Sheet feeding system with lateral registration and method for registering sheets
US5893557A (en) * 1995-11-13 1999-04-13 Becmar Corp Printing press with electronic side guide
DE19822307B4 (de) 1997-07-12 2008-12-24 Heidelberger Druckmaschinen Ag Verfahren zum paßgerechten Ausrichten von Bogen
DE10102227A1 (de) 2000-02-22 2001-08-23 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur Ausrichtung von Bogen
DE10136872A1 (de) * 2001-07-28 2003-02-06 Koenig & Bauer Ag Verfahren und Vorrichtung zum Ausrichten von Bogen
DE10148367A1 (de) * 2001-09-29 2003-04-17 Koenig & Bauer Ag Verfahren und Vorrichtung zum lagegenauen Zuführen von Bogen
DE10148365A1 (de) * 2001-09-29 2003-04-17 Koenig & Bauer Ag Verfahren und Vorrichtung zum lagegenauen Zuführen von Bogen
DE102004012697A1 (de) * 2003-04-11 2004-10-21 Heidelberger Druckmaschinen Ag Bogenglätteinrichtung
JP2008156123A (ja) * 2006-12-21 2008-07-10 Heidelberger Druckmas Ag シートを処理する機械に向かってシートを供給するための装置
US20080191405A1 (en) * 2007-02-12 2008-08-14 Heidelberger Druckmaschinen Ag Sheet-Processing Machine Having a Device for Generating Pneumatic Forces
DE102009027389B4 (de) * 2008-07-31 2019-04-04 manroland sheetfed GmbH Anordnung zur seitlichen Ausrichtung von Bogen
CN101683780B (zh) 2008-09-25 2013-08-07 海德堡印刷机械股份公司 用于在处理机中侧向地定向页张的方法和装置
JP5574655B2 (ja) * 2009-09-25 2014-08-20 キヤノン株式会社 画像処理装置、画像処理装置の制御方法及びプログラム

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DE1195330B (de) * 1963-03-26 1965-06-24 Cea Perego S P A Vorrichtung zum Ausrichten einzelner Papierbogen mit Hilfe von Saugorganen
DE2104113A1 (de) * 1970-02-13 1971-08-19 Polygraph Leipzig Verfahren und Vorrichtung zur passer genauen Anlage von Bogen an einer Bogen druckmaschine
DE2046602B2 (de) * 1970-09-22 1973-09-06 Koenig & Bauer AG, ,700 Würzburg Bogenzufuehrung bei druckmaschinen
GB1323868A (en) 1971-09-23 1973-07-18 Polygraph Leipzig Rotary printing machines
US3741357A (en) * 1971-11-11 1973-06-26 Ibm Position controlling system
GB1392913A (en) 1972-05-25 1975-05-07 Svecia Silkscreen Maskiner Ab Silkscreen printing machine
US3979115A (en) * 1975-04-21 1976-09-07 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Sheet lock for feed table in printing press
DE2517875A1 (de) * 1975-04-23 1976-10-28 Maschf Augsburg Nuernberg Ag Kontrollvorrichtung in der anlage von bogenverarbeitenden maschinen
DE2520232A1 (de) * 1975-05-07 1976-11-18 Wupa Maschf Gmbh & Co Vorrichtung zur uebergabe von bogenmaterial an eine bogenverarbeitende maschine
DE2547778C3 (de) * 1975-10-24 1986-03-27 Georg Spiess Gmbh, 8906 Gersthofen Bogenanleger
DE2604379C2 (de) * 1976-02-05 1982-02-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Verfahren zum Ausrichten von Bogen
US4052054A (en) * 1976-03-23 1977-10-04 International Business Machines Corporation Sequential load dual document feed
DD126168A1 (no) * 1976-04-19 1977-06-22
CS212427B1 (cs) * 1976-04-19 1982-03-26 Guenter Weisbach Způsob vyrovnání a přivádění archů a zařízení k provádění způsobu
DE2744925C2 (de) * 1977-10-06 1986-06-12 Koenig & Bauer AG, 8700 Würzburg Einrichtung auf einer Stopptrommel für eine Bogenrotationsdruckmaschine
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Publication number Priority date Publication date Assignee Title
DE4116409A1 (de) * 1991-05-18 1992-11-19 Roland Man Druckmasch Seitenmarken- und ueberziehkontrolle einer rotations-bogendruckmaschine

Also Published As

Publication number Publication date
CA1225671A (en) 1987-08-18
NO156285C (no) 1987-08-26
ZA839164B (en) 1984-07-25
EP0114393A1 (de) 1984-08-01
US4613125A (en) 1986-09-23
DK606083A (da) 1984-07-21
MX158294A (es) 1989-01-20
AT393104B (de) 1991-08-26
AU567133B2 (en) 1987-11-12
NO156285B (no) 1987-05-18
JPS59142147A (ja) 1984-08-15
DK606083D0 (da) 1983-12-29
NO840190L (no) 1984-07-23
AU2211983A (en) 1984-07-26
ATA424783A (de) 1991-01-15
DE3301722A1 (de) 1984-07-26
DE3367196D1 (en) 1986-12-04
DE3301722C2 (de) 1985-03-07
ES8501340A1 (es) 1984-12-01
BR8400226A (pt) 1984-08-28
ES528046A0 (es) 1984-12-01

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