EP0529376B1 - Dispositif pour régler les vis de zone d'encrage des encriers dans une machine d'impression - Google Patents

Dispositif pour régler les vis de zone d'encrage des encriers dans une machine d'impression Download PDF

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Publication number
EP0529376B1
EP0529376B1 EP92113534A EP92113534A EP0529376B1 EP 0529376 B1 EP0529376 B1 EP 0529376B1 EP 92113534 A EP92113534 A EP 92113534A EP 92113534 A EP92113534 A EP 92113534A EP 0529376 B1 EP0529376 B1 EP 0529376B1
Authority
EP
European Patent Office
Prior art keywords
ink
ink fountain
control means
control device
fountain
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 - Lifetime
Application number
EP92113534A
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German (de)
English (en)
Other versions
EP0529376A1 (fr
Inventor
Michael R. Rancourt
Stephen P. Fraczek
Gabriel P. Picache
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
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0529376A1 publication Critical patent/EP0529376A1/fr
Application granted granted Critical
Publication of EP0529376B1 publication Critical patent/EP0529376B1/fr
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
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/045—Remote control of the duct keys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0009—Central control units

Definitions

  • the present invention relates to a device for adjusting the ink fountain keys of the ink fountains in a printing press according to the preamble of claim 1.
  • a printing press control system is known from EP 0 419 811, in which each printing group contains a separate printing group control device for controlling the register setting, the dampening solution application, the ink fountain keys, etc., and the individual printing group control devices are connected in series to a central control device .
  • GB-A-2 024 457 describes a control system for printing presses in which processors for the inking unit control, register setting, dampening unit control, etc. are connected to a central control device via a serial bus.
  • the device according to GB-A-2 024 457 only has a single processor (ink processor), which both adjusts the Ink fountain keys as well as the speed of the ink fountain rollers of all ink fountains of the entire press controls.
  • a special series network is known from US Pat. No. 4,667,323, which is designed as a "token passing network".
  • a total of four different electronic control devices are required to operate the network at a single node.
  • EP 0 160 167 shows a printing press control system in which each of the printing units contains its own microprocessor which controls all control processes (forms, impressions, linear register, etc.) and in which all processors are connected to a central control device via a serial network are.
  • the invention relates to a control system for checking a number of ink fountains with ink fountain keys in a printing press.
  • the invention can be applied to printing presses of various designs.
  • the following description represents the present invention only in connection with a multi-color lithographic printing machine.
  • the 1 has a lithographic Multi-color printing machine 10 a number of printing units 20, 30, 40 and 50. Although four printing units are shown, it goes without saying that the number of printing units operated can be different.
  • the printing units 20, 30, 40, 50 each have a pair of ink fountains, as is known from the prior art.
  • Each printing unit includes an upper and lower plate cylinder (not shown) and one with each interacting upper and lower blanket cylinders (not shown). Each printing unit prints on a side of a material web transported by the machine 10 assigned to it. A color box for the color application is assigned to each upper and lower plate cylinder. As is well known in the art, ink is transferred from an ink fountain to the associated plate cylinder as the latter rotates. The print image on the plate is transferred to the blanket cylinder, from where it is in turn transferred to the assigned side of the material web moved by this printing unit.
  • the printing unit 20 has an upper ink fountain 25 and a lower ink fountain 26.
  • the printing unit 30 has an upper ink fountain 35 and a lower ink fountain 36.
  • the printing unit 40 has an upper ink fountain 45 and a lower ink fountain 46.
  • the printing unit 50 has an upper fountain Ink fountain 55 and a lower ink fountain 56.
  • the ink fountain 25 has an ink fountain roller 21 which extends laterally across the printing unit 20.
  • a structured ink knife 22 is located next to the ink fountain roller 21 and extends laterally across the ink fountain roller 21.
  • a gap 23 for the ink film is formed between the outer peripheral surface 23 of the ink fountain roller 21 and the lower edge 27 of the ink knife 22.
  • This gap 23 is shown here for illustration in an exaggerated dimension.
  • the gap 23 is adjustable in many places in the lateral direction along the ink fountain roller 21, which is a position-related control of the ink fountain 25 on the associated printing cylinder (not shown) allowed in the ink supplied to the printing unit 20.
  • the ink knife 22 and ink fountain roller 21 form a color reservoir 28 in a manner well known in the printing art. Ink is supplied from the ink reservoir through the gap formed between the peripheral surface 24 of the ink fountain roller 21 and the lower edge 27 of the ink knife, to thereby produce a controlled thickness of the ink film on the ink fountain roller.
  • a number of adjustment devices 60 for dosing the ink flow are effectively attached to the side of the ink fountain 25.
  • Each of the adjustment devices 60 presses against an assigned point on the ink knife 22 and in this way controls or regulates the width of the gap 23 between the ink fountain roller 21 and the ink knife 22 at such assigned points on the ink knife 22.
  • Each of the adjustment devices 60 has an ink zone screw 61, which contacts a fixed part of the frame of the ink fountain 25 by screwing.
  • the ink fountain key has a pointed part which presses against the assigned part of the ink knife 22.
  • the width of the gap 23 between the ink knife 22 and the ink fountain roller 21 can be regulated by screwing the ink fountain head screw into or out of the frame of the ink fountain.
  • the ink zone screw 61 is driven by a servomotor 62 which acts in two directions. The motor 62 axially moves the ink fountain key 61 in and out.
  • a potentiometer 63 is operatively connected to an ink zone screw 61 assigned to it.
  • the impedance of the potentiometer is functionally related to the Position of the ink fountain key 61.
  • the potentiometer 63 thus serves to determine the position of the ink fountain key 61 and to monitor the width of the gap 23 in the area assigned to the ink fountain key on the ink knife.
  • Each printing unit has an ink fountain control device assigned to it.
  • the printing unit 20 (FIG. 1) has an ink fountain control device 70.
  • the printing unit 30 has an ink fountain control device 74.
  • the printing unit 40 has an ink fountain control device 78.
  • the printing unit 50 has an ink fountain control device 82.
  • the electrical connections between the ink fountain control 70 and the ink fountain 25 are described herein with the understanding that the electrical connections between the other ink fountain controls and their associated ink fountains are the same.
  • the ink fountain control device 70 is connected via a line 65 to the ink fountain key actuator 62 and via a line 64 to the potentiometer 63.
  • the control device 70 controls the servomotor 62 in accordance with a programmed command to position the ink fountain key and to control the gap 23 between the ink knife 22 and the ink fountain roller 21 in the region of this ink fountain bolt.
  • the potentiometer 63 gives a feedback signal to the ink fountain control device 70 corresponding to the position of the ink fountain key 61 and the width of the gap 23.
  • an operator console 100 which comprises a central control device 102 which communicates with each of the ink fountain control devices 70, 74, 78 and 82 in the manner described hereinafter.
  • the control panel 100 further includes one by the operator Touch-activated display field 104 (operator touch-screen display) and a sheet inspection area 106 as support for a printed sheet, which has an image printed by one or a combination of the printing units 20, 30, 40, 50.
  • the control panel 100 also includes a series of manually operated remote selection switches 108 for controlling the positions of the ink fountain keys in a selected ink fountain.
  • the row of switches 108 is divided into pairs. Each pair of switches is associated with a respective ink zone screw and a predetermined zone of the sheet inspection surface 106, which corresponds to a lateral position on the ink knife in each of the printing units.
  • the control panel 100 also includes a bar graph display panel 110 to assist the operator in adjusting the ink fountain keys to their desired positions.
  • the display panel 110 has a number of zones with rows of light emitting diodes ("LEDs").
  • the number of zones with LED rows corresponds to the number of ink zone screws and the number of switch pairs 108.
  • the number of ink zone screws assigned to each of the ink fountains is thirty-six, the number of switch pairs 108 thirty-six and the number of zones with LED rows in that Display panel 110 thirty six.
  • the display field 104 provides an operator input device for the control operation of the printing units 20, 30, 40, 50 including the selection of a color box and the selection of the ink fountain keys to be adjusted in this color box.
  • the display panel 104, the switches 108 and the display panel 110 are electrically connected to the central control device 102.
  • Information from the central control device 102 can be displayed to the operator on the display panel 104, and it is easy for the operator to send information to the central control device 102 simply by touching the Enter display field 104 in the corresponding positions determined by a system software program.
  • touch panels are well known in the art and are not described in detail here.
  • the central control device 102 is preferably a Model 286 PC AT computer.
  • the central control device 102 interacts with the display field 104 and generates a series of menus and / or graphic representations which are assigned to the individual printing units 20, 30, 40, 50.
  • An operator monitoring panel with a series of selector switches is located next to the display field 104 and is another input means for the operator to control the individual printing units.
  • Each ink fountain controller has an associated ink fountain data controller.
  • the ink fountain control device 70 is operatively connected to the ink fountain data control device 120.
  • the ink fountain controller 74 is operatively connected to the ink fountain data controller 122.
  • the ink fountain control device 78 is operatively connected to the ink fountain data control device 124.
  • the Ink fountain controller 82 is operatively connected to ink fountain data controller 126.
  • the data controller 116 is connected to each of the ink fountain data controllers 120, 122, 124 and 126 by a single pair of twisted wires 140. This pair of twisted wires 140 form a series line.
  • Each command sent from the central controller 102 includes a code that represents a destination control node or address.
  • Each of the ink fountain controllers has an associated, specific node address.
  • the ink fountain data controller receives a command via the serial line and processes the low current signal and passes the control information to the ink fountain controller in the form of a power signal. If the address in this message matches the address for this ink fountain controller, then this ink fountain monitor executes the motor positioning command on the corresponding ink fountain and sends a message back to the central controller 102 when the ink fountain screw motions are completed are.
  • Each of the ink fountain control devices has an associated memory operatively connected to it.
  • the ink fountain control device 70 is connected to a memory 150.
  • the ink fountain control device 74 is connected to a memory 152.
  • the ink fountain control device 78 is connected to a memory 156.
  • the ink fountain control device 82 is connected to a memory 158.
  • the program for operating the assigned ink fountain control device is stored in each of these assigned ink fountain memories.
  • the ink fountain controllers are preferably commercially available microcomputers of the type that have an analog-to-digital converter, a parallel connection, a series channel and input / output channels for switching the ink fountain key drive motors on and off.
  • the ink fountain control devices basically exercise control over the position of the ink zone screws assigned to them in the respective printing units in a closed control loop.
  • an ink fountain control device receives a positioning command, the motor is driven by it and thus the assigned ink fountain key is brought into the commanded position.
  • the ink fountain controller monitors the feedback potentiometer to ensure that the actual position of the ink fountain keys corresponds to the desired position. If this is the case, the ink fountain control device stops the ink fountain key drive motors.
  • Each of the ink fountain controllers can store subsequent commands in their associated memory even if it has not yet completed a current move command. The newly received command simply remains in the assigned memory until the ink fountain control device gets this information for controlling the ink fountain keys in the respective printing units.
  • the arrangement of the four ink fountain control devices and the central control device constitutes a distributed control system for controlling the operation of the printing machine 10.
  • a distributed control system as shown in Figure 1, provides a number of beneficial results. It is advantageous that the ink zone screws of a color box of a printing unit can be moved simultaneously with the ink zone screws of a color box of another printing unit. This advantage is based on the fact that the central control device can send an ink fountain key positioning command to a second ink fountain control device, while the adjustment of the ink fountain head screws of another ink fountain is still in progress due to a previously given command to the control device assigned to it.
  • the ink fountain keys of one ink fountain are adjusted while the ink fountain bolts of another ink fountain are adjusted, but not necessarily in phase.
  • the central control device gives a command
  • the responsible ink fountain control device takes over control of the actual ink fountain key movement, so that the central control device is free to give another command.
  • the speed at which the present system can operate depends solely on the speed at which an operator issues positioning commands. It is not necessary for the operator to wait until one positioning command has been fulfilled before entering another positioning command.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (6)

  1. Dispositif de réglage de vis de zones d'encrage (61) de plusieurs encriers d'une machine à imprimer, comprenant des dispositifs (60) de réglage de vis de zones d'encrage à l'aide desquels, lors de leur mise en service, des vis sélectionnées (61) de zones d'encrage de l'un, associé, des encriers (25, 26, 35, 36, 45, 46, 55, 56) sont déplacées, ainsi que plusieurs dispositifs (70, 74, 78, 82) de commande d'encrier, chaque encrier (25, 26, 35, 36, 45, 46, 55, 56) étant associé à un dispositif de commande d'encrier et chaque dispositif de commande d'encrier commandant les dispositifs (60) de réglage de vis de zones d'encrage de l'encrier associé, ainsi qu'un dispositif central de commande (102) qui est relié de manière commandée à chacun des dispositifs de commande d'encrier (70, 74, 78, 82) pour le réglage simultané de vis de zones d'encrage (61) de plusieurs encriers,
       caractérisé
       en ce que le dispositif central de commande (102) comprend un dispositif central de contrôle de la transmission des données (116) pour la génération de signaux d'instruction sous forme sérielle,
       en ce que des dispositifs de contrôle de la transmission de données aux encriers (120, 122, 124, 126) sont prévus pour la réception et la transmission des signaux d'instruction en série, générés par le dispositif central de contrôle de la transmission de données (116), aux dispositifs de commande des encriers (70, 74, 78, 82) et
       en ce que les dispositifs de contrôle de la transmission de données aux encriers (120, 122, 124, 126) sont connectés au dispositif central de contrôle de la transmission de données (116) par un conducteur en série auquel exclusivement les dispositifs de contrôle de la transmission de données aux encriers (120, 122, 124, 126) sont raccordés.
  2. Dispositif selon la revendication 1,
       caractérisé
       en ce que le conducteur en série est formé d'une unique paire de fils torsadés (140).
  3. Dispositif selon la revendication 1 ou 2,
       caractérisé
       en ce que chacun des dispositifs de commande des encriers (70, 74, 78, 82) comprend un dispositif associé de contrôle de la transmission des données à l'encrier (120, 122, 124, 126).
  4. Dispositif selon l'une des revendications 1 à 3,
       caractérisé
       en ce que le dispositif central de commande (102) comprend des dispositifs (120, 122, 124, 126) d'envoi d'un code d'adresse avec le signal d'instruction.
  5. Dispositif selon la revendication 4,
       caractérisé
       en ce que chacun des dispositifs de commande d'encrier (70, 74, 78, 82) comporte une adresse qui lui est affectée et en ce que le dispositif de contrôle de la transmission de données aux encriers (120, 122, 124, 126) qui est associé au dispositif de commande d'encrier (70, 74, 78, 82) ne répond qu'aux signaux d'instruction qui contiennent un code affecté d'adresse correspondant à l'adresse du dispositif de commande d'encrier.
  6. Dispositif selon l'une des revendications précédentes,
       caractérisé
       en ce que chacun des dispositifs de réglage de vis de zones d'encrage (60) comprend un dispositif détecteur (63) de quittance de la position de la vis correspondante de zone d'encrage (61).
EP92113534A 1991-08-30 1992-08-08 Dispositif pour régler les vis de zone d'encrage des encriers dans une machine d'impression Expired - Lifetime EP0529376B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75340291A 1991-08-30 1991-08-30
US753402 1991-08-30

Publications (2)

Publication Number Publication Date
EP0529376A1 EP0529376A1 (fr) 1993-03-03
EP0529376B1 true EP0529376B1 (fr) 1996-11-27

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Application Number Title Priority Date Filing Date
EP92113534A Expired - Lifetime EP0529376B1 (fr) 1991-08-30 1992-08-08 Dispositif pour régler les vis de zone d'encrage des encriers dans une machine d'impression

Country Status (6)

Country Link
EP (1) EP0529376B1 (fr)
JP (1) JPH05246015A (fr)
CN (1) CN1034484C (fr)
AT (1) ATE145587T1 (fr)
CA (1) CA2071461C (fr)
DE (1) DE59207576D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10055583B4 (de) * 1999-12-09 2014-06-18 Heidelberger Druckmaschinen Ag Verfahren zur Planung und Ablaufsteuerung von Produktionsabläufen
US6412412B1 (en) * 2000-03-24 2002-07-02 Heidelberger Druckmaschinen Ag Device and method for controlling ink keys
DE10330579C5 (de) * 2002-07-19 2016-12-22 Heidelberger Druckmaschinen Ag Vorrichtung zum Regeln der Weite des Farbspaltes bei einer Druckmaschine
JP5449055B2 (ja) * 2010-06-24 2014-03-19 東洋電機製造株式会社 インキキー開度調整装置
CN113002203A (zh) * 2021-02-07 2021-06-22 福建省祥盛彩印包装有限公司 一种多色胶印的印刷工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2024457A (en) * 1978-06-07 1980-01-09 Harris Corp Printing press make ready and control system
EP0160167A1 (fr) * 1984-02-21 1985-11-06 Didde Graphic Systems Corporation Procédé et appareil de commande électronique distribuée d'une presse à imprimer
US4667323A (en) * 1985-09-03 1987-05-19 Allen-Bradley Company, Inc. Industrialized token passing network

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677211A5 (fr) * 1988-05-31 1991-04-30 Bobst Sa
US5079738A (en) * 1989-09-29 1992-01-07 Rockwell International Corporation Processor interconnect network for printing press system forming a star network

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2024457A (en) * 1978-06-07 1980-01-09 Harris Corp Printing press make ready and control system
EP0160167A1 (fr) * 1984-02-21 1985-11-06 Didde Graphic Systems Corporation Procédé et appareil de commande électronique distribuée d'une presse à imprimer
US4667323A (en) * 1985-09-03 1987-05-19 Allen-Bradley Company, Inc. Industrialized token passing network

Also Published As

Publication number Publication date
CA2071461C (fr) 1997-08-19
ATE145587T1 (de) 1996-12-15
DE59207576D1 (de) 1997-01-09
CA2071461A1 (fr) 1993-03-01
EP0529376A1 (fr) 1993-03-03
JPH05246015A (ja) 1993-09-24
CN1034484C (zh) 1997-04-09
CN1072886A (zh) 1993-06-09

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