EP0363803B1 - Dispositif d'entraînement individuel pour unités d'impression - Google Patents

Dispositif d'entraînement individuel pour unités d'impression Download PDF

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Publication number
EP0363803B1
EP0363803B1 EP89118405A EP89118405A EP0363803B1 EP 0363803 B1 EP0363803 B1 EP 0363803B1 EP 89118405 A EP89118405 A EP 89118405A EP 89118405 A EP89118405 A EP 89118405A EP 0363803 B1 EP0363803 B1 EP 0363803B1
Authority
EP
European Patent Office
Prior art keywords
printing units
plates
plate
exchange
drums
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
EP89118405A
Other languages
German (de)
English (en)
Other versions
EP0363803A3 (en
EP0363803A2 (fr
Inventor
Yukikazu C/O Mihara Machinery Works Shoji
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP0363803A2 publication Critical patent/EP0363803A2/fr
Publication of EP0363803A3 publication Critical patent/EP0363803A3/en
Application granted granted Critical
Publication of EP0363803B1 publication Critical patent/EP0363803B1/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
    • B41F13/0008—Driving devices
    • 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
    • B41P2213/10—Constitutive elements of driving devices
    • B41P2213/20—Gearings
    • B41P2213/208—Harmonic drive

Definitions

  • the present invention relates to an individual driving system with the features of the preamble of claim 1 that is applicable to printing units in a printing machine.
  • the mount positions of plates 3 (3a, 3b, 3c and 3d) mounted on the plate drums 2 in the printing unit 1 are different depending upon diameters D of the plate drums 2 (2a, 2b, 2c and 2d) and an interval L between the printing units (between units 1a and 1b), even if the mount position of the plate 3a is located at a position convenient for exchange of a plate in a certain printing unit, for instance, in a first color printing unit 1a, the mount positions of the plates in the other printing units are not always located at position convenient for exchange of a plate. Accordingly, in the prior art in each printing unit, after the mount position of a plate has been brought to a position convenient for exchange of a plate, exchange of a plate would be effected.
  • color register since the color register of a practically printed pattern would involve a little error due to precision in mounting of a plate onto a plate drum, deviation of a pattern printed on a plate relative to a plate mount reference position, and the like, color registering is effected by providing a small-sized motor and thereby this error is corrected (hereinafter called "color register").
  • color register in place of a motor 13 in Fig. 1, a small-sized motor 31 is provided. Since this small-sized motor 31 and relevant parts thereof are identical to those shown in Fig. 4, they will be explained in connection to the preferred embodiment as will be described later.
  • EP-A-0 318 959 Another driving system for printing units of a rotary press is known from EP-A-0 318 959, which falls under Article 54(3) EPC.
  • This system comprises a plurality of printing units, a main shaft for driving all printing units and individual drive units with individual drive motors and electromagnetic brakes for individually driving the respective printing units. Switching over to the individual drive units for adjusting the positions of the plate drums of the printing units after exchange of plates is achieved by means of mechanical clutches.
  • an individual driving system for printing units of a printing machine comprising the features of claim 1.
  • differential reduction gears for instance, a harmonic drive (Fig. 4) consisting of a web generator F corresponding to a sun gear, circular splines D and S corresponding to sun orbits, and a flex spline P corresponding to a planetary gear, is used.
  • the motor is rotated at a high speed in order to calculate the positions where simultaneous exchange of plates is possible
  • the plates in the respective printing units quickly occupy the positions convenient for exchange of plates (preset positions).
  • the plate drums can be quickly returned to the positions where mechanical register is precisely established.
  • drives of first mode, second mode and third mode it becomes possible to drive the differential gears by the line shaft and firmly fix the web generator, to fix the line shaft and drive the web generator by the motor, and to drive the differential gears by the line shaft while driving the web generator by the motor.
  • the amount of rotation of the plate drums from the original positions (the mechanically registered positions) up to these simultaneous plate exchange positions, as well as the amount of return rotation of the plate drums after exchange of plates that corresponds to the above-mentioned amount of rotation, are counted.
  • reference numeral 2 designates a plate drum
  • numeral 3 designates a plate
  • numeral 4 designates a line shaft
  • numerals 5 and 6 respectively designate gears
  • numeral 7 designates differential reduction gears
  • numerals 8 and 9 respectively designate bevel gears
  • numerals 10, 11 and 12 designate gears
  • numeral 13 designates a high/low two-stage variable-speed reversible motor associated with a brake
  • numerals 14, 15, 18 and 19 designate gears
  • numeral 16 designates a fixed shaft (of the differential gears) connected to the motor 13 via the gears 14 and 15,
  • numeral 17 designates an output shaft (of the differential gears)
  • numeral 20 designates an electromagnetic clutch associated with a brake
  • numeral 21 designates a color registering potentiometer
  • numeral 22 designates a position detecting encoder
  • numeral 23 designates a blanket drum
  • reference character F designates a web generator of the differential gears 7
  • the line shaft 4 rotationally drives the gear 12 of the plate drum 2 through the gears 5 and 6, the differential gears 7, the bevel gears 8 and 9 and the gear 10, and via the gear 11 of the blanket drum 23.
  • the gear 14, the gear 15 meshed with this gear 14, and the web generator F of the differential gears 7 which are mounted at the axial end of the fixed shaft 16 having the gear 15 fixedly secured thereto, are rotated by the high/low two-stage variable-speed reversible motor 13 associated with a brake.
  • the color registering potentiometer 21 is rotated by the motor 13 through the gears 18 and 19 and the electromagnetic clutch 20 associated with a brake.
  • the brake Upon driving of mode 1 shown in Fig. 1, the brake acts upon the motor 13(31) and firmly fixes the motor. Accordingly, the web generator F of the differential gears holds a fixed state, hence rotation of the line shaft 4 is transmitted to the gears 5 and 6, and reduced in speed by the differential gears 7, and rotates the gear 12 via the bevel gears 8 and 9 and the gears 10 and 11.
  • an angular position of the plate drum in one revolution with respect to a given mechanical origin is detected by the encoder 22 provided on the plate drum or the blanket drum. While the electromagnetic clutch 20 takes the ON state, since the motor 13(31) is fixed, the potentiometer 21 would not operate (The above-mentioned is similar to the heretofore known driving system.).
  • a brake acts upon the line shaft 4, hence the line shaft 4 is fixed, the motor 13 rotates at a high speed, the electromagnetic clutch 20 takes the OFF state, and so, the color registering potentiometer 21 would not move.
  • the position detecting encoder 22 is fed with electric power, hence it counts the amount of rotation of the plate drum 2, and it transmits a signal representing the counted amount to a control device (not shown).
  • the high-speed rotation of the motor 13 is transmitted through the gears 14 and 15, the web generator F of the differential gears 7, the circular spline D supported via a bearing, the flex spline P, the circular spline S and the output shaft 17 to which the circular spline S is fixedly secured, and via the bevel gears 8 and 9 to the gear 12.
  • the mount positions of the plates 3 mounted on the plate drums 2 of the respective printing units would come to predetermined positions convenient for exchange of plates.
  • the plate drums 2 are returned to their mechanically registered relative positions before the exchange of the plates.
  • the motor 13 rotates at a high speed, and when the plate drum 2 has been rotated by the amount corresponding to the amount counted by the above-described position detecting encoder 22 through the same drive route as that upon the above-described simultaneous exchange of plates and thus returned to the original position, the rotation of the motor 13 is stopped. It is to be noted that control of the motor 13 so as to rotate normally when the counted amount exceeds 180 degrees but to rotate reversely when it is equal to or less than 180 degrees, is effected in the above-mentioned control device.
  • this mode 2 driving is an inherent drive mode of the present invention which was not found in the prior art.
  • the rotation of the line shaft 4 is transmitted to the gears 5 and 6, and is reduced in speed by the differential gears 7, and the gear 12 is rotated via the bevel gears 8 and 9 and the gears 10 and 11.
  • the motor 13 rotates at a low speed, and rotates the web generator F via the gears 14 and 15. Accordingly, adjustment of register can be effected slowly.
  • the color registering potentiometer 21 is rotated by the motor 13 through the gears 18 and 19 and the electromagnetic clutch 20 associated with a brake, and the amount of rotation is displayed on an indicator of the control device (in turns of a color register amount).
  • the electromagnetic clutch 20 associated with a brake has become an ON (engaged) state
  • the potentiometer 21 is braked by the brake of the clutch 20 so that it may not rotate too easily due to the rotation of the motor 13.

Landscapes

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

Claims (2)

  1. Dispositif d'entraînement individuel pour des unités d'impression (1) d'une machine d'impression, qui comprend:
    - des sources d'entraînement (13, 31) et des dispositifs de commande de position pour actionner de manière individuelle les unités d'impression (1) respectivement pourvues de tambours à plaques (2) et pour déplacer les positions de montage des plaques (3) montées sur les tambours à plaques (2) dans les unités d'impression respectives (1) vers des positions prédéterminées pour lesquelles on peut effectuer un changement simultané des plaques (3) dans les unités d'impression respectives (1),
    - des codeurs (22) de détection de position placés au niveau des tambours à plaques (2) ou des tambours à blanchets (23), pour détecter la quantité de rotation des tambours à plaques (2) ou des tambours à blanchets (23) pendant le déplacement vers les positions de changement des plaques (3) et, une fois terminé le changement des plaques (3), pour fournir cette information auxdites sources d'entraînement (13, 31) et dispositifs de commande de position afin d'actionner individuellement les unités d'impression pour qu'elles ramènent les tambours à plaques (2) vers les phases relatives, mécaniquement en coïncidence, des tambours à plaques (2) avant l'exécution dudit changement de plaques (3),
    caractérisé en ce qu'il y a des engrenages (7) de réduction différentiels qui relient l'arbre de transmission (4) aux unités d'impression (1) respectives et qui sont couplés auxdites sources d'entraînement (13, 31) respectives pour actionner individuellement lesdites unités d'impression (1), et
    en ce qu'un potentiomètre (21) de correspondance des couleurs est couplé, via un embrayage électromagnétique (20), à l'arbre de sortie de chacune desdites sources d'entraînement (13, 31) pour actionner individuellement les unités d'impression (1) respectives.
  2. Dispositif d'entraînement individuel pour des unités d'impression (1) selon la revendication 1, caractérisé en ce que lesdites sources d'entraînement (13, 31) destinées à actionner individuellement les unités d'impression (1) sont des moteurs d'entraînement individuels associés à des freins qui ont des vitesses réversibles et variables à deux niveaux, haut/bas.
EP89118405A 1988-10-13 1989-10-04 Dispositif d'entraînement individuel pour unités d'impression Expired - Lifetime EP0363803B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63255816A JPH02103145A (ja) 1988-10-13 1988-10-13 印刷ユニット単独駆動装置
JP255816/88 1988-10-13

Publications (3)

Publication Number Publication Date
EP0363803A2 EP0363803A2 (fr) 1990-04-18
EP0363803A3 EP0363803A3 (en) 1990-11-28
EP0363803B1 true EP0363803B1 (fr) 1994-08-10

Family

ID=17284024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118405A Expired - Lifetime EP0363803B1 (fr) 1988-10-13 1989-10-04 Dispositif d'entraînement individuel pour unités d'impression

Country Status (3)

Country Link
EP (1) EP0363803B1 (fr)
JP (1) JPH02103145A (fr)
DE (1) DE68917406T2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10125134A1 (de) * 2001-05-23 2002-12-05 Heidelberger Druckmasch Ag Verfahren zur Rüstzeitreduzierung bei automatisiertem Druckformwechsel
DE102004048315A1 (de) * 2004-10-05 2006-04-06 Man Roland Druckmaschinen Ag Druckeinheit einer Druckmaschine und Verfahren zur Durchführung eines Druckplattenwechsels an einem Formzylinder einer Druckeinheit

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017159A1 (de) * 1990-05-28 1991-12-05 Windmoeller & Hoelscher Druckmaschine
DE4223583B4 (de) * 1992-07-17 2005-02-24 Heidelberger Druckmaschinen Ag Verfahren zum Antreiben beim Plattenwechsel bei einer Bogendruckmaschine und Antrieb zur Durchführung des Verfahrens
DE4245061B4 (de) * 1992-07-17 2012-03-08 Heidelberger Druckmaschinen Ag Druckmaschine mit mehreren Plattenzylindern
DE4430693B4 (de) † 1994-08-30 2005-12-22 Man Roland Druckmaschinen Ag Antriebe für eine Rollenrotations-Offsetdruckmaschine
US6644184B1 (en) 1995-02-09 2003-11-11 Man Roland Druckmaschinen Ag Offset printing machine
DE10222002B4 (de) * 2002-05-17 2006-05-04 Koenig & Bauer Ag Verfahren und Vorrichtung zum Wechseln von Druckplatten
DE10222003A1 (de) * 2002-05-17 2003-12-04 Koenig & Bauer Ag Verfahren und Vorrichtung zum Wechseln von Druckplatten
JP4604277B2 (ja) * 2004-12-22 2011-01-05 三菱重工印刷紙工機械株式会社 印刷機の版排出時の版巻き込み防止方法及び装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318959A2 (fr) * 1987-12-01 1989-06-07 Mitsubishi Jukogyo Kabushiki Kaisha Système d'entraînement pour une presse rotative

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB501876A (en) * 1938-04-08 1939-03-07 Allan John Cline Driving mechanism for rotary printing presses
US4514819A (en) * 1982-06-04 1985-04-30 Harris Graphics Corporation Apparatus and method for measuring rotational position
GB2149149A (en) * 1983-10-28 1985-06-05 Rockwell Graphic Syst Printing press synchronization

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318959A2 (fr) * 1987-12-01 1989-06-07 Mitsubishi Jukogyo Kabushiki Kaisha Système d'entraînement pour une presse rotative

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10125134A1 (de) * 2001-05-23 2002-12-05 Heidelberger Druckmasch Ag Verfahren zur Rüstzeitreduzierung bei automatisiertem Druckformwechsel
DE102004048315A1 (de) * 2004-10-05 2006-04-06 Man Roland Druckmaschinen Ag Druckeinheit einer Druckmaschine und Verfahren zur Durchführung eines Druckplattenwechsels an einem Formzylinder einer Druckeinheit
US7497163B2 (en) 2004-10-05 2009-03-03 Man Roland Druckmaschinen Ag Printing unit of a printing press and method for carrying out a printing-plate change on a forme cylinder of a printing unit
CN1757510B (zh) * 2004-10-05 2010-09-29 曼罗兰公司 印刷机的印刷单元和在印版滚筒上更换印版的方法

Also Published As

Publication number Publication date
DE68917406T2 (de) 1995-01-05
EP0363803A3 (en) 1990-11-28
EP0363803A2 (fr) 1990-04-18
DE68917406D1 (de) 1994-09-15
JPH02103145A (ja) 1990-04-16

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