EP0615841A1 - Machine d'impression - Google Patents

Machine d'impression Download PDF

Info

Publication number
EP0615841A1
EP0615841A1 EP94101516A EP94101516A EP0615841A1 EP 0615841 A1 EP0615841 A1 EP 0615841A1 EP 94101516 A EP94101516 A EP 94101516A EP 94101516 A EP94101516 A EP 94101516A EP 0615841 A1 EP0615841 A1 EP 0615841A1
Authority
EP
European Patent Office
Prior art keywords
drive
toothed belt
printing machine
rollers
anilox
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
EP94101516A
Other languages
German (de)
English (en)
Other versions
EP0615841B1 (fr
Inventor
Werner Jost-Enneking
Günter Rogge
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP0615841A1 publication Critical patent/EP0615841A1/fr
Application granted granted Critical
Publication of EP0615841B1 publication Critical patent/EP0615841B1/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
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/004—Driving means for ink rollers

Definitions

  • the invention relates to a printing press, preferably a flexographic printing press, with an impression cylinder and a plurality of printing units, in which the bearings of the format cylinders and the inking units with the anilox roller on guides of the printing frame can be moved radially or almost radially to the impression cylinder and in which the drive of the format cylinders and Anilox rollers are derived from a central drive, preferably a central wheel.
  • Flexographic printing machines of this type are known, for example, from DE-OS 29 41 521, 34 37 216, 37 42 129 and 40 01 735.
  • the impression cylinders as well as the format cylinders assigned to each impression cylinder and the anilox and immersion rollers of the inking units are driven by a first central wheel during normal printing operation, which meshes directly with the gears attached to the shaft journal of the impression cylinders, while the drives of the impression cylinders and the grid - and plunge rollers are derived from gear wheels wedged onto the other shaft journals.
  • a second central wheel which can be driven by a servo motor, which drives the meshing drive gearwheels of the anilox and plunger rollers via gears that are freely rotatable on the journal of the impression cylinder and format cylinder , wherein a coupling device is provided which switches the drive of the second central wheel to the servomotor when the machine is at a standstill.
  • the object of the invention is therefore to provide a more simply constructed continuous drive for the inking unit rollers and in particular the anilox rollers of printing machines, in particular flexographic printing machines.
  • this object is achieved in a printing machine of the type specified at the outset in that the anilox rollers are in drive connection with the central drive or central wheel via a freewheel, that a continuous drive is provided for the anilox rollers that can be moved away from the format cylinders is, which consists of a chain or a toothed belt driven by a servo motor, which or all the drive gears of the anilox rollers loop through deflection via deflection rollers, three of which are fixed to the frame and one each on the associated inking unit or anilox roller carriage in the manner that the strands of the toothed belt, which run on the radially outside of the anilox roller drive and run from these and the respective radially outer deflection loop-enclosing strands of the toothed belt run parallel to each other, and that the ink roller or anilox roller blocks are also on their guides can be moved parallel to the parallel runs of the toothed belt.
  • the anilox rollers can be moved in the direction of the impression cylinder and away from it for the purpose of exchanging format cylinders or in the event of interruptions in the printing operation, without any loosening of the toothed belt due to the parallel guidance of the strands of the toothed belt and the anilox roller blocks on the cogwheels driving the anilox rollers, because the parallel alignment of the splines of the timing belt always results in a length compensation.
  • the drive of the toothed belt is coupled to the central drive or the central wheel via a freewheel
  • the toothed belt can be driven easily by a continuous motor consisting of a servomotor when the machine is at a standstill.
  • the servomotor expediently also drives the toothed belt via a freewheel, so that during normal printing operation the freewheel motor does not have to be uncoupled or dragged along.
  • the anilox rollers are expediently driven by the central wheel via the toothed belt in that an intermediate gear meshes with the central wheel and a gear arranged on the drive shaft for the toothed belt.
  • the toothed belt driving the anilox rollers is driven by the central wheel, without the drive gear wheels of the format cylinders being parts in the drive chains for the anilox rollers.
  • the gear meshing with the intermediate gear is expediently provided with the freewheel.
  • the drive shaft for the toothed belt is provided with a further gearwheel provided with a freewheel, which is in drive connection with the servo motor.
  • the two freewheels are arranged on a common shaft that carries the drive gear for the toothed belt.
  • the format cylinder gears can mesh directly with the gear, so that the format cylinders can be easily replaced.
  • the flexographic printing press is basically of a known type, as is known, for example, from DE-OS 29 41 521, 34 37 216, 37 42 129 and 40 01 735, to which reference is made for a more detailed explanation.
  • the flexographic printing machine shown in the drawing has a frame in which a common impression cylinder 1 is mounted for all printing units. Furthermore, the printing machine frame is provided on both sides with consoles, for example from DE-OS 29 41 521, which are provided with guides for the carriage carrying the format cylinder blocks, these format cylinder slides in turn being provided with guides for the inking block.
  • the flexographic printing machine shown in the drawing only has one anilox roller 2, which is provided with an ink chamber doctor blade in a known and therefore not described manner.
  • Each printing unit consists of a format cylinder 6, which is mounted in a format cylinder block and can be moved on a format cylinder slide, only the format cylinders 6 being indicated in the drawing.
  • the inking unit slides are slidably mounted on the format cylinder slides in linear guides, on which the anilox rollers 2 are mounted in corresponding anilox roller blocks.
  • a deflection wheel 7 for the toothed belt 4 is freely rotatably mounted on each inking unit carriage.
  • the deflection wheel 7 can thus be moved together with the anilox roller 2 without this changing their relative position to one another.
  • Deflection wheels 8 to 14 for the toothed belt 4 are mounted in the frame laterally offset to the inside of the impression cylinder 1.
  • freely rotatable deflection wheels 15 for the toothed belt 4 are mounted in the frame 3.
  • the deflecting wheels 7, 15 each assigned to a printing unit as well as the format roller 6 and the anilox roller 2 each have the same reference numerals.
  • the toothed belt 4 is an endless toothed belt which is driven by the toothed belt drive wheel 18 by the servomotor 20 provided with a gear 19. In the area of the drive wheel 18, the toothed belt is guided over the deflection wheels 21, 22 fixed to the frame, so that it surrounds the drive wheel 18 in a loop-like manner.
  • the toothed belt 4 is in each case guided in a loop-like manner via the drive toothed wheels 24 of the anilox rollers 2 in the manner shown in FIG. 1.
  • the strands 25 running from the inner frame-fixed deflection wheels 8 to 14 onto the deflection wheels 7 and the strands 26 of the toothed belt 4 running from the frame-fixed deflection wheels 15 to the inner frame-fixed deflection wheels 10 are parallel to one another. Furthermore, the runs 27, which run from the drive toothed wheels 24 of the anilox rollers 2 to the outer deflection wheels 15 fixed to the frame, are parallel to the runs 25, 26. Finally, the anilox rollers 2 can also be moved on the anilox roller carriages on tracks 28 which lead to the runs 25 , 26, 27 of the drive belt 4 are parallel.
  • This type of reeving of the toothed belt 4 does not change its length when the anilox rollers 2 are moved, because the changes in length of the strands 25, 27 always correspond to each other when the anilox roller 2 is moved, so that the changing lengths of the strands are fully compensated of the timing belt 4 occurs.
  • the inner frame-fixed deflection wheels 9, 10, 11, 12, 13 are each assigned two printing units, so that the number of deflection wheels can be avoided.
  • a drive shaft 31 is mounted in the upper frame attachment 30 of the printing press frame, on which the drive wheel 18 for the toothed belt 4 is fixed by a feather key 32.
  • the gear 34 is also placed over a freewheel 33, which meshes via an intermediate gear 35 with the central gear 36 connected to the impression cylinder 1.
  • a gear 38 which meshes with the drive gear 39 of the gear servo motor 19, 20, is placed on the shaft 31 via a further freewheel 37.
  • the toothed belt 4 is therefore driven by the central wheel 6 via the toothed wheel 34 provided with the freewheel 33, which rotates the shaft 31 provided with the drive wheel 18.
  • the servomotor 20 When the machine is at a standstill, the servomotor 20 is switched on, so that the toothed belt 4 is driven at a lower speed via the pinion 39 and the gearwheel 38 provided with the freewheel 37.
  • the format cylinders 6 are driven via the format cylinder drive gearwheels 40 which mesh directly with the central wheel 6.
  • the format cylinder 6 can therefore be replaced without the drive for the anilox rollers having to be set up again.
EP94101516A 1993-03-17 1994-02-02 Machine d'impression Expired - Lifetime EP0615841B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4308492 1993-03-17
DE4308492A DE4308492A1 (de) 1993-03-17 1993-03-17 Druckmaschine

Publications (2)

Publication Number Publication Date
EP0615841A1 true EP0615841A1 (fr) 1994-09-21
EP0615841B1 EP0615841B1 (fr) 1996-05-01

Family

ID=6483040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94101516A Expired - Lifetime EP0615841B1 (fr) 1993-03-17 1994-02-02 Machine d'impression

Country Status (6)

Country Link
US (1) US5413038A (fr)
EP (1) EP0615841B1 (fr)
JP (1) JP2801852B2 (fr)
CA (1) CA2119342A1 (fr)
DE (2) DE4308492A1 (fr)
ES (1) ES2086241T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611048A1 (de) * 1996-03-20 1997-09-25 Windmoeller & Hoelscher Druckmaschine, vorzugsweise Flexodruckmaschine
DE19651816A1 (de) * 1996-12-13 1998-06-25 Roland Man Druckmasch Antriebsvorrichtung für eine Walze eines Farbbehälters
DE10143871C1 (de) * 2001-09-07 2003-03-13 Roland Man Druckmasch Farbwerk für eine Druckmaschine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627478C2 (de) * 1996-07-08 1998-04-23 Windmoeller & Hoelscher Druckmaschine
DE19716943A1 (de) * 1997-04-22 1998-11-05 Windmoeller & Hoelscher Verfahren zur Steuerung der Drehzahl der Druckzylinder einer Druckmaschine
IT1314383B1 (it) † 2000-02-18 2002-12-13 Uteco S P A Roto Flexo & Conve Macchina da stampa rotativa flessografica a piu' colori
DK176859B1 (da) * 2003-04-01 2010-01-04 Tresu Anlaeg As Trykværk, trykmaskine med sådan trykværk, værktöj til brug i trykmaskinen samt fremgangsmåde til brug af trykværket for trykning med flexofarver og lak
EP1728628A1 (fr) * 2005-06-01 2006-12-06 Kba-Giori S.A. Machine d'impression typographique à entraînements indépendants
DE102015108126A1 (de) * 2015-05-22 2016-11-24 Windmöller & Hölscher Kg Druckmaschine sowie Verfahren zur Anstellung mehrerer Farbwerke einer Druckmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742317C (de) * 1940-04-13 1943-11-27 Windmoeller & Hoelscher Mehrfarben-Anilin-Druckmaschine
US2836115A (en) * 1955-05-24 1958-05-27 Donald J Page Rotary web aniline press
GB2111912A (en) * 1981-12-22 1983-07-13 Windmoeller & Hoelscher Flexographic printing press
GB2143474A (en) * 1983-06-06 1985-02-13 Cruiser Newspaper Components I Printing machine
DE3742129A1 (de) * 1987-12-11 1989-06-22 Windmoeller & Hoelscher Druckmaschine
EP0498012A1 (fr) * 1991-02-07 1992-08-12 FISCHER & KRECKE GMBH & CO. KG Machine d'impression flexographique avec engrenage auxiliaire pour changement de voie d'entraînement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1519544A (en) * 1921-07-22 1924-12-16 Niagara Paper Mills Multicolor-printing press
US3791294A (en) * 1972-01-17 1974-02-12 Gloucester Eng Co Inc Printing press
DE2941521C2 (de) * 1979-10-12 1982-11-25 Windmöller & Hölscher, 4540 Lengerich Verfahren zum Austauschen der Formzylinder einer Flexodruckmaschine
DE3437216A1 (de) * 1984-10-10 1986-04-10 Windmöller & Hölscher, 4540 Lengerich Flexodruckmaschine mit mehreren farbwerken und formzylindern
DE4001735A1 (de) * 1990-01-22 1991-07-25 Windmoeller & Hoelscher Vorrichtung zum verfahren von wellen lagernden lagerboecken

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742317C (de) * 1940-04-13 1943-11-27 Windmoeller & Hoelscher Mehrfarben-Anilin-Druckmaschine
US2836115A (en) * 1955-05-24 1958-05-27 Donald J Page Rotary web aniline press
GB2111912A (en) * 1981-12-22 1983-07-13 Windmoeller & Hoelscher Flexographic printing press
GB2143474A (en) * 1983-06-06 1985-02-13 Cruiser Newspaper Components I Printing machine
DE3742129A1 (de) * 1987-12-11 1989-06-22 Windmoeller & Hoelscher Druckmaschine
EP0498012A1 (fr) * 1991-02-07 1992-08-12 FISCHER & KRECKE GMBH & CO. KG Machine d'impression flexographique avec engrenage auxiliaire pour changement de voie d'entraînement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611048A1 (de) * 1996-03-20 1997-09-25 Windmoeller & Hoelscher Druckmaschine, vorzugsweise Flexodruckmaschine
US5787811A (en) * 1996-03-20 1998-08-04 Windmoller & Holscher Flexographic printing press
DE19651816A1 (de) * 1996-12-13 1998-06-25 Roland Man Druckmasch Antriebsvorrichtung für eine Walze eines Farbbehälters
DE19651816C2 (de) * 1996-12-13 1999-10-28 Roland Man Druckmasch Antriebsvorrichtung für eine Walze eines Farbbehälters
DE10143871C1 (de) * 2001-09-07 2003-03-13 Roland Man Druckmasch Farbwerk für eine Druckmaschine

Also Published As

Publication number Publication date
JPH071721A (ja) 1995-01-06
DE59400238D1 (de) 1996-06-05
EP0615841B1 (fr) 1996-05-01
ES2086241T3 (es) 1996-06-16
CA2119342A1 (fr) 1994-09-18
DE4308492A1 (de) 1994-09-22
JP2801852B2 (ja) 1998-09-21
US5413038A (en) 1995-05-09

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