EP0114393A1 - Procédé et dispositif pour l'alimentation exacte de feuilles dans des machines à traiter des feuilles - Google Patents

Procédé et dispositif pour l'alimentation exacte de feuilles dans des machines à traiter des feuilles Download PDF

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Publication number
EP0114393A1
EP0114393A1 EP83113058A EP83113058A EP0114393A1 EP 0114393 A1 EP0114393 A1 EP 0114393A1 EP 83113058 A EP83113058 A EP 83113058A EP 83113058 A EP83113058 A EP 83113058A EP 0114393 A1 EP0114393 A1 EP 0114393A1
Authority
EP
European Patent Office
Prior art keywords
sheet
scanning device
edge
sheets
alignment
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
EP83113058A
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German (de)
English (en)
Other versions
EP0114393B1 (fr
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
Original Assignee
Heidelberger Druckmaschinen AG
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
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0114393A1 publication Critical patent/EP0114393A1/fr
Application granted granted Critical
Publication of EP0114393B1 publication Critical patent/EP0114393B1/fr
Expired legal-status Critical Current

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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 fitting sheets to sheet-processing machines, in which the sheets are aligned with the aid of a scanning device and in which the sheet is moved essentially perpendicularly to the sheet edge to be aligned by an aligning device.
  • the scanning device consists of at least one transmitter 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.
  • DE-OS 30 33 780 A1 describes a method for controlling the arrival of sheets at the inlet of printing presses.
  • 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 thus known to monitor the arrival of the individual sheets at the landing point by means of electro-optical scanning means to determine whether they are within predetermined time intervals, ie within a predetermined angle of rotation range of a machine roller. It the machine is switched off automatically when the sheet arrival falls outside the tolerance range.
  • the time available for aligning a sheet also depends on the scaling of the sheets that are to be brought into contact.
  • the side alignment of a sheet must always be done so quickly and in time that the same can be done with the subsequent sheet 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 GB 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 made on the sheet, and then digital correction pulses corresponding to the position differences are transmitted to the actuators. It is disadvantageous that any positional deviation of the sheet from the desired position necessitates a measurement and a dependent adjustment of the sheet transport means, which also has relatively large masses.
  • the sheet edge to be aligned passes the measuring zone of the scanning device during sheet conveying and thereby releases it, whereby a signal is generated, after which, depending on the signal generated, the sheet is moved a predetermined distance into the precisely fitting position.
  • 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.
  • a particularly favorable embodiment of the invention is that during the scale-like sheet conveyance to the printing unit, the aligning device moves the sheet transversely to the conveying direction and the side edge of the first sheet of a scale passes the measuring zone of the scanning device, and that after recognizing the side edge of the first sheet, the sheet is moved a predetermined distance, which remains constant with each sheet, transversely to the sheet transport direction into the exact position. Because of the flowing alignment process and the release of the scanning device by the alignment movement, the arc distance in the scale can be kept very small, which contributes to increasing the conveying capacity.
  • the method according to the invention can be further developed insofar as the scanning device is covered by the front edge of the sheet which is fed in the form of a scale, and at the same time a leading edge control is carried out by this covering with the aid of this scanning device, which is provided for the side edge alignment. In this way, both front and side edge alignment can be achieved in a simple manner.
  • One embodiment of the invention is that the sheet edge initially covers the scanning device by the aligning 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 passes twice with the edge of 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 direction of conveyance with the shortest possible alignment distance can then be extended if the sheets are allowed to Scale before the initiation of the alignment movement 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 towards 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.
  • At the end of the slanted one Feed table 2 are arranged front marks 11 which can be folded down.
  • 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 solid position of the sheet 14 consequently shows its precisely aligned position.
  • 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 scales are fed 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 in FIG. 2 in that all the arches 13 of the scale, viewed in the direction of 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 together 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 laterally guided over the sensors 9 after the leading edge alignment and then conveyed back into the exact position of the sheet 14.
  • the measuring line 12 and thus the position of the sensors 9 can be changed by means of a device, not shown.
  • the scanning device can be set to different sheet formats, for example. 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 triggered digital control electronics connected to this sensor 9. If the radiation 26 is interrupted by an incoming arc, ie there is an arc between the sensor 9 and the measuring slot 8, 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 l . It retains its value until time t 1 , since the measuring line 12 is covered by the sheet 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 12 is released again by the alignment movement, which takes place 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 amplifying the signal from the operational amplifier 27, which also serves as a comparator.
  • the amplified signal passes through a bandpass filter 28 to a rectifier 29.
  • the rectified useful signal is now triggered with the aid of the trigger 30 and fed to the suction box 5 via a gate 31 for executing the movement of the arc.

Landscapes

  • Registering Or Overturning Sheets (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP83113058A 1983-01-20 1983-12-23 Procédé et dispositif pour l'alimentation exacte de feuilles dans des machines à traiter des feuilles Expired EP0114393B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=6188695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83113058A Expired EP0114393B1 (fr) 1983-01-20 1983-12-23 Procédé et dispositif pour l'alimentation exacte de feuilles dans des machines à traiter des feuilles

Country Status (13)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2603265A1 (fr) * 1986-09-02 1988-03-04 Carnaud Emballage Sa Procede de controle de positionnement d'objets plats et machine de traitement de tels objets mettant en oeuvre ce procede
EP0532343A1 (fr) * 1991-09-11 1993-03-17 Xerox Corporation Appareil pour transport de feuilles avec alignement latéral de feuilles

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE4116409C2 (de) * 1991-05-18 1995-01-05 Roland Man Druckmasch Seitenmarken- und Überziehkontrolle einer Rotations-Bogendruckmaschine
DE4201886C1 (fr) * 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
DE10148365A1 (de) * 2001-09-29 2003-04-17 Koenig & Bauer Ag Verfahren und Vorrichtung zum lagegenauen Zuführen von Bogen
DE10148367A1 (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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046602A1 (fr) * 1970-09-22 1972-06-08 Koenig & Bauer Schnellpressfab
GB1323868A (en) 1971-09-23 1973-07-18 Polygraph Leipzig Rotary printing machines
DE2517875A1 (de) * 1975-04-23 1976-10-28 Maschf Augsburg Nuernberg Ag Kontrollvorrichtung in der anlage von bogenverarbeitenden maschinen
DE2604379A1 (de) * 1976-02-05 1977-08-11 Roland Offsetmaschf Verfahren und vorrichtung zum ausrichten von bogen
GB1542016A (en) * 1976-04-19 1979-03-14 Polygraph Leipzig Kom Veb Process and apparatus for the alignment and feeding of sheets
DE3033780A1 (de) 1980-09-09 1982-04-22 Weitmann & Konrad GmbH & Co KG, 7022 Leinfelden-Echterdingen Verfahren und vorrichtung zum steuern der ankunft einzeln vorgeschobener bogen aus biegsamem material
DE2322194C2 (de) 1972-05-25 1982-10-21 Svecia Silkscreen Maskiner AB, 14502 Norsborg Einrichtung zum Anlegen eines Bogens

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3741357A (en) * 1971-11-11 1973-06-26 Ibm Position controlling system
US3979115A (en) * 1975-04-21 1976-09-07 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Sheet lock for feed table in printing press
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
US4052054A (en) * 1976-03-23 1977-10-04 International Business Machines Corporation Sequential load dual document feed
DD126168A1 (fr) * 1976-04-19 1977-06-22
DE2744925C2 (de) * 1977-10-06 1986-06-12 Koenig & Bauer AG, 8700 Würzburg Einrichtung auf einer Stopptrommel für eine Bogenrotationsdruckmaschine
JPS57185158A (en) * 1981-05-09 1982-11-15 Ricoh Co Ltd Ink jet recorder
JPS57185153A (en) * 1981-05-09 1982-11-15 Dainippon Printing Co Ltd Divider for defective paper at side gauge in sheet printer
US4455018A (en) * 1981-05-11 1984-06-19 International Business Machines Corporation Document feeder electronic registration gate

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046602A1 (fr) * 1970-09-22 1972-06-08 Koenig & Bauer Schnellpressfab
GB1323868A (en) 1971-09-23 1973-07-18 Polygraph Leipzig Rotary printing machines
DE2322194C2 (de) 1972-05-25 1982-10-21 Svecia Silkscreen Maskiner AB, 14502 Norsborg Einrichtung zum Anlegen eines Bogens
DE2517875A1 (de) * 1975-04-23 1976-10-28 Maschf Augsburg Nuernberg Ag Kontrollvorrichtung in der anlage von bogenverarbeitenden maschinen
DE2604379A1 (de) * 1976-02-05 1977-08-11 Roland Offsetmaschf Verfahren und vorrichtung zum ausrichten von bogen
GB1542016A (en) * 1976-04-19 1979-03-14 Polygraph Leipzig Kom Veb Process and apparatus for the alignment and feeding of sheets
DE3033780A1 (de) 1980-09-09 1982-04-22 Weitmann & Konrad GmbH & Co KG, 7022 Leinfelden-Echterdingen Verfahren und vorrichtung zum steuern der ankunft einzeln vorgeschobener bogen aus biegsamem material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2603265A1 (fr) * 1986-09-02 1988-03-04 Carnaud Emballage Sa Procede de controle de positionnement d'objets plats et machine de traitement de tels objets mettant en oeuvre ce procede
EP0259210A1 (fr) * 1986-09-02 1988-03-09 Cmb Packaging S.A. Machine de traitement d'objets plats
EP0532343A1 (fr) * 1991-09-11 1993-03-17 Xerox Corporation Appareil pour transport de feuilles avec alignement latéral de feuilles

Also Published As

Publication number Publication date
AU2211983A (en) 1984-07-26
ATA424783A (de) 1991-01-15
NO156285B (no) 1987-05-18
NO840190L (no) 1984-07-23
BR8400226A (pt) 1984-08-28
DE3301722A1 (de) 1984-07-26
DE3301722C2 (de) 1985-03-07
MX158294A (es) 1989-01-20
US4613125A (en) 1986-09-23
ZA839164B (en) 1984-07-25
CA1225671A (fr) 1987-08-18
ES8501340A1 (es) 1984-12-01
DK606083A (da) 1984-07-21
AU567133B2 (en) 1987-11-12
EP0114393B1 (fr) 1986-10-29
DK606083D0 (da) 1983-12-29
NO156285C (no) 1987-08-26
DE3367196D1 (en) 1986-12-04
JPS59142147A (ja) 1984-08-15
ES528046A0 (es) 1984-12-01
AT393104B (de) 1991-08-26

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