EP0904934B1 - Dispositif et procédé d'entraínement des machines d'impression avec plussieurs moteurs indépendents - Google Patents

Dispositif et procédé d'entraínement des machines d'impression avec plussieurs moteurs indépendents Download PDF

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Publication number
EP0904934B1
EP0904934B1 EP98112249A EP98112249A EP0904934B1 EP 0904934 B1 EP0904934 B1 EP 0904934B1 EP 98112249 A EP98112249 A EP 98112249A EP 98112249 A EP98112249 A EP 98112249A EP 0904934 B1 EP0904934 B1 EP 0904934B1
Authority
EP
European Patent Office
Prior art keywords
printing
transfer unit
transfer
printing unit
groups
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
EP98112249A
Other languages
German (de)
English (en)
Other versions
EP0904934A1 (fr
Inventor
Klaus Hartmann
Michael Krüger
Bernhard Wagensommer
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
Publication of EP0904934A1 publication Critical patent/EP0904934A1/fr
Application granted granted Critical
Publication of EP0904934B1 publication Critical patent/EP0904934B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B41F13/004—Electric or hydraulic features of drives
    • B41F13/0045—Electric driving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • 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

Definitions

  • the object of the invention is to propose a device and a method, which improves the disadvantages known from the prior art.
  • An advantage of the invention is that the separately driven transfer station Machine is decoupled on the one hand and remains easily controllable on the other hand.
  • the remaining groups of printing units in front of and behind the separation are each means conventional gear train connected and each with a drive.
  • the lined up printing units have a favorable Vibration behavior. That means the resonance frequency of the printing unit groups is still that way high that there is still no vibration excitation at maximum production speed.
  • the regulation of these drives does not have to be coordinated so precisely with one another to achieve phase-accurate paper transfer. That is, a phase shift can be caused by the Transfer station are balanced. This means there are no quick control interventions in the drive the printing units in front of and behind the transfer station necessary, which causes control vibrations can be avoided and the press delivers good printing results.
  • the one now occurring Phase shift of the separated printing units is controlled by a control of the transfer station balanced. This means that the transfer station takes the sheet of paper from the one in front Printing group on phase-synchronized, corrects the phase position during the rotary movement for handover to the printing group behind and hand over the sheet phase-synchronized to the printing group behind.
  • the rapid control of the transfer station is possible because the mass of the transfer station is small and no mechanical effect on the groups of printing units in front and behind is exercised.
  • motors can be used because of the low Load torque also have favorable control properties.
  • Drives are particularly suitable for this, which are attached directly to the shaft of the transfer station.
  • the transfer station is implemented, for example, by a transfer cylinder or transferter. It is known from the prior art to design the transfer cylinder as one-turn is called the development (sheet plus channel) of the impression cylinder and the transfer cylinder identical. Furthermore, it is known the transfer cylinder as a so-called storage drum to be carried out by the same half-or three-speed and thus the double or has three times the circumference of the printing cylinder. At most, the scope of the Transfer cylinder with the circumference of the printing cylinder in an integer ratio.
  • the integer ratio is not mandatory necessary.
  • two and a half times the size of the Transfer cylinder has the advantage that the angle of rotation range, in the phase correction can be made is larger. It is also conceivable that through the channel caused space between two arcs to use for phase correction.
  • the transfer station rotates with the sheet after it has been picked up Circumferential speed like all cylinders in front. This ensures that the Sheet experiences no relative movement to its transport medium and therefore the risk of Lubrication is not given. If the sheet is outside the printing nip or outside the contact surface of the printing unit, it can accelerate or be delayed until an exact alignment of the phase of the transfer cylinder with the phase of the subsequent printing unit groups. The rotation of the transfer station is accordingly not continuously, but modulated depending on the diameter and phase correction.
  • the time of takeover and the time of handover are not advantageous identical, but are placed so that in the meantime the possibility of First phase correction to the printing group and behind the transfer station then insists on the group of printing units located in front of the transfer station.
  • An additional advantage of the invention is that by adjusting the phase relationship Register corrections can be made.
  • a targeted phase shift when taking over and / or transfer can be used to make the paper edge larger in the gripper closure or becomes smaller, which allows the register to be adjusted.
  • the Transfer station takes the place of the previous turning drum.
  • the rear edge of the sheet is taken over and this is done when changing from Beautifully made on reverse printing and various settings for different formats must be done by simply changing the program at the push of a button. This means the downtimes when converting the machine when changing jobs significantly shortened.
  • the arrangement of the device according to the invention can be used wherever Printing unit groups or individual printing units lined up by a transferter become.
  • Another variant provides for the mechanical coupling between the printing unit groups to be left by means of a gear train and for a transfer station to be assigned a separate drive.
  • the transfer station can also be a single transfer cylinder.
  • the drive ensures that when a sheet is taken over from the printing group in front of it, an exact tooth flank system is produced for it.
  • this method is also a phase correction of the transfer station to the respective printing unit groups, but within smaller angular ranges.
  • a correspondingly exact tooth flank system is produced for these.
  • a corresponding solution is implemented using suitable sensors for measuring the differential angle or torque measuring systems.
  • the differential angle measurement can be carried out, for example, by means of two incremental encoders, which are each attached directly to the units involved in the sheet transfer. Within the limits of the elastic deformation of the gearwheels, a defined, regulated angular difference is in a proportional relationship to the transmitted torque.
  • the divided printing unit groups are regulated by their regulation in such a way that they act like separate machines without taking care that the torque flow in the transition area is rectified.
  • the intermediate transfer unit has the task of producing the tooth flank system in the right direction. Specifically, this means that in the case of sheet transfer from the printing group in front of it to the transfer station, a torque flow must be directed in the direction of the transfer station. If the situation so requires, this can be made possible by applying a braking torque to the transfer station by means of its drive.
  • printing unit group is not limited to a grouping of Printing units, but also includes a combination of printing unit and feeder or Printing unit and delivery. The same applies to paint shops or similar units that treat an arch inline.
  • Figure 1 shows a printing press 1 with a plurality of printing units arranged in series 2 or 3.
  • a sheet to be printed is fed by the feeder 4, through the printing units 2 and 3 to transported to the boom 5.
  • the printing units 2 and the feeder 4 are by a gear train connected to each other, which is represented by an arrow 6.
  • the drive of this Printing unit group 2 together with feeder 4 is carried out by a motor 7.
  • the printing units 3 together with the boom 5 are also connected to each other by a gear train, which is represented by an arrow 8.
  • the drive for this printing group 3 together with the boom 5 is accomplished by a motor.
  • a transfer station 10 Between the two Printing unit groups 2 and 3 is a transfer station 10, which is mechanically from the Wheel trains of both printing unit groups 2 and 3 is decoupled.
  • An arrow 11 indicates the function the transfer station 10 between the printing unit groups 2 and 3.
  • the transfer station 10 is represented by a transferter in the example. However, this can be any act sheet transport device.
  • the transfer station 10 is operated by a motor 12 driven, the angular position feedback takes place by an incremental encoder 12 '.
  • the The angular position of the other two motors 7, 9 takes place by means of incremental encoders 7 ', 9'. All Motors 7,9,12 are provided by according to the required power Power units 13, 13 ', 13 "supplied.
  • the control of the three motors 7, 9, 12 is implemented by a control device 14. their The task is to so the motors 7 and 9 according to a predetermined target speed regulate that predetermined angle difference between the two printing unit groups 2 and 3 is not is exceeded. The maximum difference depends on the dynamics of the drive system Transfer station 10 from. Furthermore, the task of the control device 14 is to Time of the sheet transfer, the transfer station 10 in exact phase agreement with the last sheet-guiding cylinder or drum of the printing group 2 in front and at the time of the sheet transfer the transfer station 10 in exact phase correspondence with the first sheet-guiding drum or cylinder of the subsequent printing group 3 bring to.
  • An input device 15 connected upstream of the control device 14 outputs the various Setpoints such as speed, moving to a certain angular position, Acceleration and braking function or the like before.
  • Fig. 2 shows a block diagram of the drive control.
  • a setpoint generator 20 provides one Angle setpoint phi Soll, a speed specification n Soll, and an acceleration setpoint a Soll. These values are each supplied to the drive control 21, 21 'and 21 "
  • Drive control 21 is assigned to a power unit 13, which supplies a motor 7.
  • the Motor 7 forms the drive for printing unit group 2.
  • the specification is made accordingly the values phi soll, n soll and a soll for the drive control 21 'which is connected to the power section 13 'is connected and together with the motor 9 the drive for the printing group 3 represents.
  • the transfer position 22 defines the angular position at which one Transfer of a sheet from printing group 2 to Transferter 10 takes place.
  • Through the Transfer position 23 is defined at which angular position a transfer from the transferter 10 to printing unit group 3.
  • the transfer positions are due to the mechanical Design specified, but can be determined by the sheet format in reverse printing become.
  • Fig. 4 shows a flow diagram showing the interaction of the transfer 10 with the Printer groups 2 and 3 shows.
  • An area is defined in which a regulation of the Position of the transfer 10 takes place on the position of the printing group 2 and a second Area in which regulation of the position of the transferter 10 to the position of the Printing group 3 takes place.
  • FIG. 5 shows a diagram which shows the speed curve of the transferter 10 over the Period of a sheet transport shows. That is, within this period the arc of the printing group 2 taken over, transported and then to printing group 3 passed. There are three different speed profiles through the Curves 30, 31, 32 shown.
  • Curve 30 shows a constant speed, which is caused by the fact that between there is no phase shift in printing unit groups 2 and 3.
  • the Transferter 10 has in this If the task has its speed exactly on the value of the two printing unit groups 2, 3 hold to ensure an angularly synchronous transfer of the sheet.
  • Curve 31 like curve 30, shows a constant speed curve up to time T 1 .
  • a transported sheet is still in contact with the drum or the cylinder, which is arranged in front of the transferter 10. If the transferter 10 were accelerated or braked during this period, the sheet could be smeared. Therefore, the transferter 10 moves within this critical angular range with the same peripheral speed as the last drum or the last cylinder of the printing unit group 2. From time T 1 , the sheet is completely on the transferter 10, so that the phase correction can be carried out.
  • there is an acceleration from T 1 ie the transferter 10 catches up with an existing differential angle with respect to the subsequent printing unit group 3.
  • Curve 31 describes the case where there is a positive differential angle from printing group 2 to printing group 3, ie printing group 3 is leading compared to printing group 2.
  • Curve 32 describes the opposite case, ie printing group 2 lags printing group 3. Therefore, between T 1 and T 2 there is first a deceleration of the transferter 10 and subsequently an acceleration between T 3 and T 4 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)

Claims (11)

  1. Dispositif de synchronisation d'au moins deux groupes d'unités d'impression (2, 3) formant une machine à imprimer des feuilles (1), chaque groupe d'unités d'impression (2, 3) étant entraíné à l'aide d'au moins un moteur d'entraínement (7, 9) séparé et un train de roue dentée, et entre les groupes d'unités d'impression (2, 3) étant disposé au moine chaque fois un poste de transfert (10) ayant un entraínement (12) réglable séparément, caractérisé en ce que des capteurs de mesure d'angle (7', 7", 9', 9", 12') sont prévue pour assurer la régulation du poste de transfert (10).
  2. Dispositif selon la revendication 1, caractérisé en ce que des capteurs devant surveiller le bord des feuilles sont prévus pour effectuer la régulation du poste de transfert (10).
  3. Dispositif selon la revendication 1. caractérisé en ce que le poste de transfert (10) est désaccouplé mécaniquement.
  4. Dispositif selon la revendication 1, caractérisé en ce que le poste de transfert (10) présente des cotés aplatis.
  5. Dispositif selon la revendication 4, caractérisé en ce que poste de transfert (10) est susceptible d'être placé en une position exempte de collision.
  6. Dispositif selon la revendication 1, caractérisé en ce que poste de transfert (10) est un transféreur.
  7. Dispositif selon la revendication 1, caractérisé en ce que poste de transfert (10) est un tambour de retournement.
  8. Dispositif selon la revendication 1, caractérisé en ce que poste de transfert (10) est couplé mécaniquement.
  9. Dispositif selon la revendication 8, caractérisé en ce que des capteurs de mesure de couple et de mesure d'angle (7', 7", 9', 9", 12') sont prévus pour assurer la régulation de l'appui des flancs de dent.
  10. Procédé de transfert synchrone de feuilles imprimées entre deux groupes d'unités d'impression (2, 3) entraínées à l'aide d'un entraínement séparé, au moyen d'un poste de transfert (10), caractérisé en ce qu'au moyen du poste de transfert (10), entre les deux groupes d'unités d'impression, d'abord est établie une synchronisation de phase par rapport au groupe d'unités d'impression (2) amont et, ensuite, une synchronisation de phase par rapport au groupe d'unités d'impression (3) aval.
  11. Procédé selon la revendication 10, caractérisé en ce que la synchronisation de phase est effectuée par un appui défini des flancs de dent, entre les roues dentées du groupe d'unités d'impression (2) amont et du poste de transfert, et ensuite, entre les roues dentées des groupes d'unités d'impression aval et du poste de transfert (10).
EP98112249A 1997-09-26 1998-07-02 Dispositif et procédé d'entraínement des machines d'impression avec plussieurs moteurs indépendents Expired - Lifetime EP0904934B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742461 1997-09-26
DE19742461A DE19742461C2 (de) 1997-09-26 1997-09-26 Vorrichtung zum Antrieb einer Bogendruckmaschine mit Mehrmotorenantrieb

Publications (2)

Publication Number Publication Date
EP0904934A1 EP0904934A1 (fr) 1999-03-31
EP0904934B1 true EP0904934B1 (fr) 2002-12-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98112249A Expired - Lifetime EP0904934B1 (fr) 1997-09-26 1998-07-02 Dispositif et procédé d'entraínement des machines d'impression avec plussieurs moteurs indépendents

Country Status (7)

Country Link
US (1) US6095043A (fr)
EP (1) EP0904934B1 (fr)
JP (1) JP4276719B2 (fr)
CN (1) CN1110414C (fr)
CZ (1) CZ293504B6 (fr)
DE (2) DE19742461C2 (fr)
RU (1) RU2233746C2 (fr)

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Publication number Priority date Publication date Assignee Title
DE102016209989A1 (de) 2016-06-07 2017-12-07 Heidelberger Druckmaschinen Ag Druckmaschine mit einzeln angetriebenen Zylindern
EP3254852A1 (fr) 2016-06-07 2017-12-13 Heidelberger Druckmaschinen AG Imprimante ayant des cylindres à entraînement individuel par moteur électrique
CN107672291A (zh) * 2016-06-07 2018-02-09 海德堡印刷机械股份公司 具有被单独驱动的滚筒的印刷机
CN107672291B (zh) * 2016-06-07 2020-10-16 海德堡印刷机械股份公司 具有被单独驱动的滚筒的印刷机

Also Published As

Publication number Publication date
CN1110414C (zh) 2003-06-04
RU2233746C2 (ru) 2004-08-10
DE59806698D1 (de) 2003-01-30
JP4276719B2 (ja) 2009-06-10
CZ293504B6 (cs) 2004-05-12
CN1212926A (zh) 1999-04-07
DE19742461A1 (de) 1999-04-08
EP0904934A1 (fr) 1999-03-31
JPH11157051A (ja) 1999-06-15
DE19742461C2 (de) 2001-05-10
CZ295798A3 (cs) 2000-04-12
US6095043A (en) 2000-08-01

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