EP0437813A2 - Dispositif de régulation du margeur d'une machine de traitement de feuilles, notamment d'une imprimeuse - Google Patents

Dispositif de régulation du margeur d'une machine de traitement de feuilles, notamment d'une imprimeuse Download PDF

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Publication number
EP0437813A2
EP0437813A2 EP90125188A EP90125188A EP0437813A2 EP 0437813 A2 EP0437813 A2 EP 0437813A2 EP 90125188 A EP90125188 A EP 90125188A EP 90125188 A EP90125188 A EP 90125188A EP 0437813 A2 EP0437813 A2 EP 0437813A2
Authority
EP
European Patent Office
Prior art keywords
sheet
angular positions
computing
control
scanner
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
EP90125188A
Other languages
German (de)
English (en)
Other versions
EP0437813A3 (en
EP0437813B1 (fr
Inventor
Dieter Hauck
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
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT90125188T priority Critical patent/ATE96121T1/de
Publication of EP0437813A2 publication Critical patent/EP0437813A2/fr
Publication of EP0437813A3 publication Critical patent/EP0437813A3/de
Application granted granted Critical
Publication of EP0437813B1 publication Critical patent/EP0437813B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/08—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to incorrect front register
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/20—Controlling associated apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B65H2511/212—Rotary position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/82—Sound; Noise

Definitions

  • the invention relates to a device for regulating the sheet system in sheet-processing machines, in particular printing machines.
  • the sheets are lifted individually from a stack of sheets in the machine cycle and transported over the conveyor belts and timing rollers to the front stops of the feed table.
  • the grippers of the register feed drum take the sheets from standstill and accelerate them to machine speed.
  • the precisely fitting transfer of the sheets presupposes that the sheets arrive at the front stops at a predetermined angular position of the printing press and / or that the front sheet edges are aligned perpendicular to the sheet conveying direction. If these two conditions are not met, in extreme cases the sheets will not be picked up at all or unevenly over the gripper contact surfaces, which can lead to paper jams in the feeder area or to sheet losses in the machine. Both cases trigger a feeder or machine stop.
  • Deviations from the specified, optimal number of sheet arrival are process-related and cannot be avoided.
  • the arrival of the sheets is delayed with increasing machine speed.
  • the sheet arrival at constant machine speed depends on the paper weight: light paper arrives later at the front stops with the same setting than cardboard.
  • the skew of the sheets increases with increasing machine speed because the times for the alignment of the sheet leading edges along the front stops getting shorter and shorter. Incorrect settings in the feeder area can then no longer be corrected by the sluggishness of the sheets.
  • DE-OS 22 02 851 describes a device for automatic pressure adjustment in sheet-guiding machines, in particular in printing machines with an overlapped sheet inlet.
  • paper-scanning light marks are attached to the feed table.
  • angle encoders are arranged on a shaft of the machine, which actuate switches in predetermined angle ranges by means of cam disks. This machine-synchronous time or angle control determines three sampling intervals for the light marks per machine rotation, which are used to identify early, late and good sheets. The registration of early, late and inclined sheets triggers an immediate machine stop.
  • EP-PS 0 047 413 describes a method and a device for controlling the arrival of sheets of flexible material at the inlet of sheet-processing machines, in particular printing presses, the arrival of the sheet at a contact point by means of a tactile means within a predetermined time interval or is determined within a predetermined angle of rotation range.
  • a second, shorter time range is defined within this time range (good range).
  • the printer Since the printer has no information about any tendency changes in the sheet feeder, the entire printing process still depends to a large extent on the skill of the respective printer.
  • the invention has for its object to provide a device that detects the arrival of the sheet at the inlet of a printing press and / or the inclined position of a sheet and calculates and makes corrections in the event of a deviation from predetermined target values.
  • a scanner is arranged in the middle of the feed table, that an angle encoder is attached to a shaft of a cylinder of the printing press and that a computing / control device assigns the scanning signals of the scanner to the respective angular positions of the angle encoder, these angular positions with compares stored target values, calculates adjustment data in the event of deviations to correct the arrival of the sheet, and sends this adjustment data to an adjustment device.
  • At least one scanner is arranged symmetrically to the center of the feed table.
  • the scanning signals are assigned to the corresponding angular positions of the angle encoder. The fact that the scanner can be used simultaneously to control the arrival of the sheet and the sheet feeder is particularly advantageous.
  • the computing / control device determines the angular positions assigned to the scanning signals of the scanner and, in the event of a deviation of the angular positions, calculates the corresponding adjustment data for an inclined position of the following sheets and sends them to a control device.
  • the mean value of the angular positions is determined by the computing / regulating device. This mean value is used for the control as the actual value for the optimal number of sheet arrival times.
  • the invention can be further developed in such a way that centrally arranged scanners and symmetrically arranged scanners can optionally be switched on or off. For example, there is no need to detect the inclined position of the carton if the machine speed is not too high.
  • the computing / control device for corresponding adjustment data for deviations of the measured or calculated angular positions from the stored angular positions a phase adjustment of the arc is calculated and supplied to a corresponding actuating device.
  • a further embodiment of the invention provides that an absolute encoder or an incremental encoder which is connected to a counter is used as the angle encoder. Thanks to an angular resolution that can be freely selected within a wide range and corresponds to the dimensioning of the individual angular increments, the angular position of the machine when the sheet arrives can be determined very precisely.
  • Constant control of the angular position of the printing machine which can be determined with great accuracy, when the sheet arrives at the predetermined target value could have a negative effect on the printing process and thus on the printing quality.
  • the reason for this is that, statistically speaking, so-called "outliers" occur in the "normal” printing process, the cause of which is not due to incorrect settings of the mechanical parts of the sheet feeder.
  • a response of the regulation must be suppressed in the case of these "outliers", since, due to the inertia of the mechanical adjustment parts, there is otherwise the danger that waste is printed after a regulation on the missing sheet.
  • the computing / control device calculates an average value from a large number of measurements of the angular positions assigned to the scanning signals of the scanner, and that the computing / regulating device compares this value with the predetermined angular position setpoint.
  • the computing / regulating device only initiate the regulation to the predefined setpoint value when the angular positions determined by the scanning signals of the scanner exceed a predefined tolerance range. With this tolerance range it is, for example, the empirically determined scatter of the measured values around the statistical mean.
  • the statistical evaluation has the further advantage that tendency changes regarding the arch system are recognizable and distinguishable from “outliers” that occur from time to time. While the computing / regulating device should not respond to "outliers", tendencies changes in the production run which occur when the sheet arrival is originally optimally adjusted and are caused, for example, by the wear of mechanical parts, must be corrected. The fact that an objective measure of the quality or the uniformity of the sheet travel is available via the statistical evaluation of the number of sheet arrival is also extremely favorable. On the basis of experimentally determined comparison values, there is also the possibility of errors occurring in the sheet feed system, e.g. B. attributable to wear on the suction cups or incorrect setting of suction or blowing air nozzles. It is envisaged that such error messages will be shown to the printer on the display of the control panel.
  • the operating personnel are given the option of manually specifying the setpoint and / or the tolerance range of the angular position when the bow arrives optimally. This gives the printer the opportunity to use his or her experience in the printing process.
  • deviations that exceed the tolerance range around the setpoint are signaled acoustically and / or displayed optically on the central information display.
  • a further configuration of the invention aims to automate the printing process in the start-up phase.
  • the printer enters the paper weight on the central information display of the control device.
  • the computing / control device assigns this specification of the paper weight to the correspondingly stored, experimentally determined, optimal start settings of the investor.
  • the automatic adjustment of the feeder phase position which is dependent on the paper weight, ensures trouble-free start-up of the sheet travel and ensures from the start of the printing process that printing is carried out with high quality.
  • Fig. 1 shows the schematic representation of a printing press 1 with two printing units 2, a feeder 3 and a delivery 4. From a suction head, not shown in FIG. 1, the sheets are individually lifted from the sheet stack 5 and are scaly over the feed table 6 and transported to the front stops 8 of the printing press 1.
  • the gripper system of the register feed drum 7 detects the leading edge of the sheet and accelerates the sheet from standstill to machine speed.
  • An angle encoder 9 is attached to the shaft of the register application drum 7.
  • the computing / control device 14 assigns the scanning signals of the scanners 10a, 10b, which signal the arrival of the sheet, to the respective angular positions of the printing press 1 determined by the angle encoder 9. Adjustment data for the inclined and phase adjustment of the sheets in the application area of the printing press 1 are then determined in the computing / control device 14 from the difference between the measured and predetermined angular positions.
  • the computing / control device 14 is connected to the control panel 11.
  • the central information display 12 which shows the printer the calculated adjustment data.
  • the keyboard 13 enables the printer to intervene in the control loop and to make the necessary presettings and corrections manually.
  • FIG. 2 shows a schematic view of a top view of the application area and the first printing unit 2 of a printing press 1.
  • An angle encoder 9 is located on a shaft in the first printing unit 2.
  • Scanners 10a, 10b on the operator side and on the drive side are arranged symmetrically to the center of the feed table 6 in the region of the front stops 8.
  • the phase is adjusted by means of the servomotor 15, which changes the sheet feed by deflecting the feeder drive chain.
  • the inclination of the sheet position is achieved via the servomotor 16, which changes the relative position of the suction cups of the suction head to one another.
  • Fig. 3 shows the structure of the sheet arrival control on the feeder 3 a printing machine 1.
  • 17 is intended ⁇ of predetermined, optimum sheet arrival number of degrees and the difference gemesser sheet arrival ⁇ number of degrees is formed.
  • the control deviation ⁇ is applied to a disturbance variable at 18.
  • the compensation circuit 19 is a feedforward control, which takes into account the dependence of the number of degrees of arrival on the machine speed. The functional relationship between the two variables is known.
  • An occurring speed change ⁇ is fed to the compensation circuit 19.
  • the change in the number of arcs of arrival which is linked to the change in speed, is determined via the compensation characteristic curve and is applied to the control deviation at 18.
  • the compensation of known interference influences which is superior to the computing / regulating device 14, offers the advantage that these disturbances are corrected before they become effective on the feeder. This results in a much more constant sheet guidance in the feeder area.
  • the computer 20 determines adjustment data for the servomotors 15, 16 in accordance with the remaining control deviation ⁇ after the disturbance variable compensation.
  • the possibility is provided to choose between manual (II) and automatic adjustment (I) of the servomotors by means of a switch.
  • a control circuit 22 for positioning the servomotors is subordinate to the computing / control device 14.
  • 24 is a computer card that calculates the exact positioning of the servomotor 25.
  • the difference between the calculated actual and target positions of the servomotor is formed and the control loop 22 is closed.
  • Block 26 represents the feeder of the machine as a controlled system.
  • the scanning signals of the scanners 10a, 10b are assigned the respective numerical angular positions determined by the angle transmitter 9.
  • the corresponding number of arches is averaged over a large number of arches.
  • the smoothed signals are added and at 32 the mean value of these smoothed signals is formed. This mean value is supplied to the computing / regulating device 14 as the actual angular position value ⁇ ist .
  • the scanning signals are forwarded via lines 33 and 34 for output to the central information display 12 of the control panel 11.

Landscapes

  • Controlling Sheets Or Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Registering Or Overturning Sheets (AREA)
EP90125188A 1990-01-17 1990-12-21 Dispositif de régulation du margeur d'une machine de traitement de feuilles, notamment d'une imprimeuse Expired - Lifetime EP0437813B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90125188T ATE96121T1 (de) 1990-01-17 1990-12-21 Vorrichtung zur regelung der bogenanlage bei bogenverarbeitenden maschinen, insbesondere druckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4001120A DE4001120C2 (de) 1990-01-17 1990-01-17 Vorrichtung zur Regelung der Bogenankunft bei bogenverarbeitenden Maschinen, insbesondere Druckmaschinen
DE4001120 1990-01-17

Publications (3)

Publication Number Publication Date
EP0437813A2 true EP0437813A2 (fr) 1991-07-24
EP0437813A3 EP0437813A3 (en) 1991-10-23
EP0437813B1 EP0437813B1 (fr) 1993-10-20

Family

ID=6398197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125188A Expired - Lifetime EP0437813B1 (fr) 1990-01-17 1990-12-21 Dispositif de régulation du margeur d'une machine de traitement de feuilles, notamment d'une imprimeuse

Country Status (8)

Country Link
US (1) US5096183A (fr)
EP (1) EP0437813B1 (fr)
JP (1) JPH04350045A (fr)
CN (1) CN1018536B (fr)
AT (1) ATE96121T1 (fr)
AU (1) AU629085B2 (fr)
CA (1) CA2032037C (fr)
DE (2) DE4001120C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644139A1 (fr) * 1993-09-17 1995-03-22 MAN Roland Druckmaschinen AG Unité de marqeur de feuilles

Families Citing this family (22)

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Publication number Priority date Publication date Assignee Title
DE4137979B4 (de) * 1991-11-19 2004-05-06 Heidelberger Druckmaschinen Ag Antrieb für eine Druckmaschine mit mindestens zwei mechanisch voneinander entkoppelten Druckwerken
DE4140051C2 (de) * 1991-12-05 1996-11-07 Leuze Electronic Gmbh & Co Einrichtung zum Überwachen der Ankunft von Bogen am Einlaß bogenverarbeitender Maschinen
DE4322744C2 (de) † 1993-07-08 1998-08-27 Baumueller Nuernberg Gmbh Elektrisches Antriebssystem und Positionierverfahren zur synchronen Verstellung mehrerer dreh- und/oder verschwenkbarer Funktionsteile in Geräten und Maschinen, Antriebsanordnung mit einem Winkellagegeber und Druckmaschine
DE4333071C1 (de) * 1993-09-29 1995-02-09 Roland Man Druckmasch Verfahren und Vorrichtung zur Steuerung des Bogeneinlaufes beim Anfahren einer bogenverarbeitenden Druckmaschine
DE4448000B4 (de) * 1994-01-27 2012-09-06 Heidelberger Druckmaschinen Ag Vorrichtung zum Fördern von Bogen im Anlegerbereich einer Bogen verarbeitenden Maschine
JP3478629B2 (ja) * 1994-01-27 2003-12-15 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 紙葉処理機械の給紙領域において紙葉を搬送する装置および電動モータの速度制御方法
DE19508041C2 (de) * 1995-03-07 1999-05-20 Brehmer Buchbindereimaschinen Vorrichtung zur Synchronisation der Zuführung von Bogen
JP3127982B2 (ja) * 1995-04-26 2001-01-29 リョービ株式会社 印刷機の異常紙検出装置
DE19640963A1 (de) * 1996-10-04 1998-04-16 Wolfgang Heiber Verfahren und Vorrichtung zur Vereinzelung von gestapelten Zuschnitten
DE10320759B4 (de) * 2002-06-10 2013-03-14 Heidelberger Druckmaschinen Ag Transportsystem mit Gebern zur Lageerfassung in einer bedruckstoffverarbeitenden Maschine
DE10234629A1 (de) * 2002-07-29 2004-02-19 Nexpress Solutions Llc Verfahren und Vorrichtung zur Bereitstellung von Bögen in einer Druckmaschine
DE10334230B4 (de) 2002-08-06 2018-05-03 Heidelberger Druckmaschinen Ag Vorrichtung zur Korrektur der Lage eines Druckbildes auf einem Bogen einer Bogen-Druckmaschine
JP4786138B2 (ja) * 2003-09-26 2011-10-05 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 被印刷体枚葉紙を処理する機械
DE10356810A1 (de) * 2003-12-05 2005-07-07 Nexpress Solutions Llc Verfahren zum Zuführen von Bögen in einer Druckmaschine
DE10360168A1 (de) * 2003-12-20 2005-07-21 Rexroth Indramat Gmbh Verfahren und Vorrichtung zur Korrektur der Lageabweichung eines Transportgutes
CN100381337C (zh) * 2005-12-31 2008-04-16 锦州春光包装机械有限公司 液体灌装机对版调整方法及调整装置
DE102007009674A1 (de) 2007-02-28 2008-09-04 Koenig & Bauer Aktiengesellschaft Vorrichtung zum Erkennen der Lage eines Bogens auf dem Anlagetisch einer Bogendruckmaschine
DE102007009676A1 (de) 2007-02-28 2008-09-04 Koenig & Bauer Aktiengesellschaft Vorrichtung zum Ausrichten eines Bogens auf dem Anlagetisch einer Bogendruckmaschine
DE102009041227A1 (de) * 2008-09-22 2010-04-01 Heidelberger Druckmaschinen Ag Optimierte Registerregelung in Bogendruckmaschinen
DE102011006113A1 (de) * 2011-03-25 2012-09-27 Kba-Metalprint Gmbh Vorrichtung zum Auftragen zumindest eines Mediums auf zumindest ein Substrat und ein Verfahren zum reproduzierbaren Festlegen einer Drehwinkellage zumindest eines ersten Zylinders einer Vorrichtung
DE102022110168B3 (de) 2022-04-27 2023-05-17 Heidelberger Druckmaschinen Aktiengesellschaft Funktionsüberwachung von Transportbändern in der Druckmaschine
DE102023135280B3 (de) 2023-12-15 2025-01-16 Koenig & Bauer Ag Verfahren zum Betreiben einer bogenverarbeitenden Maschine

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DE2202851A1 (de) 1972-01-21 1973-08-02 Weitmann & Konrad Vorrichtung zur automatischen druckanstellung bei bogenfuehrenden druckmaschinen
EP0047413A1 (fr) 1980-09-09 1982-03-17 Weitmann & Konrad GmbH & Co. KG Procédé et dispositif pour commander l'arrivée de feuilles en matériau flexible avançant séparément

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EP0047413A1 (fr) 1980-09-09 1982-03-17 Weitmann & Konrad GmbH & Co. KG Procédé et dispositif pour commander l'arrivée de feuilles en matériau flexible avançant séparément

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644139A1 (fr) * 1993-09-17 1995-03-22 MAN Roland Druckmaschinen AG Unité de marqeur de feuilles

Also Published As

Publication number Publication date
US5096183A (en) 1992-03-17
DE4001120C2 (de) 1994-05-26
AU6869291A (en) 1991-07-18
CA2032037C (fr) 1995-05-09
ATE96121T1 (de) 1993-11-15
AU629085B2 (en) 1992-09-24
EP0437813A3 (en) 1991-10-23
DE4001120A1 (de) 1991-07-18
CN1053408A (zh) 1991-07-31
CN1018536B (zh) 1992-10-07
JPH04350045A (ja) 1992-12-04
EP0437813B1 (fr) 1993-10-20
DE59003158D1 (de) 1993-11-25

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