EP1129847B1 - Entraínement pour cylindres d'une machine d'impression - Google Patents

Entraínement pour cylindres d'une machine d'impression Download PDF

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Publication number
EP1129847B1
EP1129847B1 EP00104629A EP00104629A EP1129847B1 EP 1129847 B1 EP1129847 B1 EP 1129847B1 EP 00104629 A EP00104629 A EP 00104629A EP 00104629 A EP00104629 A EP 00104629A EP 1129847 B1 EP1129847 B1 EP 1129847B1
Authority
EP
European Patent Office
Prior art keywords
rotor
stator
drive
cylinder
cylinders
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
EP00104629A
Other languages
German (de)
English (en)
Other versions
EP1129847A1 (fr
Inventor
Klaus Peters
Wilfried Kolbe
Ralf Bergmann
Klaus Schirrich
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.)
Rexroth Indramat GmbH
Original Assignee
Rexroth Indramat GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8168024&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1129847(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rexroth Indramat GmbH filed Critical Rexroth Indramat GmbH
Priority to DE50004719T priority Critical patent/DE50004719D1/de
Priority to AT00104629T priority patent/ATE256011T1/de
Priority to ES00104629T priority patent/ES2209702T3/es
Priority to EP00104629A priority patent/EP1129847B1/fr
Publication of EP1129847A1 publication Critical patent/EP1129847A1/fr
Application granted granted Critical
Publication of EP1129847B1 publication Critical patent/EP1129847B1/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
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2200/00—Printing processes
    • B41P2200/10—Relief printing
    • B41P2200/12—Flexographic printing
    • 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
    • B41P2213/11—Motors
    • B41P2213/124—Electric motors
    • B41P2213/128—Linear electric motors
    • 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 invention relates to an electric drive for a cylinder of a printing press, with a stator and one sitting on the axis of the cylinder Rotor.
  • the invention is concerned with a drive for a so-called Central cylinder of a printing press, for example the impression cylinder a flexographic printing machine that has a relatively large diameter and on the circumference there are several inking units.
  • each cylinder of the printing press has a its own drive motor, and the speeds and phase angles of the individual cylinders are electronically compared with each other.
  • the rotors of the drive motors at least for the printing cylinders and the inking rollers are then preferably directly on the axis of the cylinder in question or the rollers arranged.
  • the drive motor for the central cylinder can be arranged directly on the axis of this cylinder.
  • the object of the invention is therefore to provide an electric drive for a cylinder, in particular to create a central cylinder of a printing press, the delivers high torque and smooth running with small dimensions of the cylinder.
  • stator only extends over part of the circumference of the rotor and with this a linear drive forms.
  • linear drive denotes a drive concept in which the relative movement between the stator and rotor does not necessarily have to be a rotational movement, but also can be a straight or curvilinear translational movement.
  • the electromechanical Interaction between stator and rotor is one of them Linear actuator limited to a zone that is only part of the total length of the Stator or the "rotor" makes up. In the present case this interaction zone takes place only part of the total circumferential length of the rotor.
  • the rotor in the drive according to the invention continues to rotate off, but the length of the interaction zone is in proportion to the radius of curvature of the rotor so small that the rotor at all times only with part of its circumferential length through or on the stator Stator passes by and is quasi linear, approximately relative to the stator straight line movement.
  • the advantage of this drive system is that the dimensions of the stator can be much smaller than the effective diameter of the rotor. This makes it possible to save the drive overall on or in the machine frame to accommodate the printing press and yet, due to the large effective radius of the rotor, with comparatively small electromagnetic Forces to generate a high drive torque. This way the required drive torque during the start-up phase of the printing press for the central cylinder with a small motor with low power consumption generate, and due to the large effective radius of the rotor a sensitive control of the angular velocity of the cylinder and if necessary also allows precise control of the angular position of the same. Since no mechanical reduction gear is required, the drive can structurally simplified and the harmful influence of gear play or Gear errors in the transmission can be avoided.
  • the rotor can in its circumferential area interacting with the stator a ring of individually controllable windings or a ring of permanent magnets and in cooperation with the stator work on the principle of a stepper motor.
  • a structurally particularly simple Embodiment is simply by an electrically conductive rotor Disc formed, or it has in the region of its outer peripheral edge an electrically conductive ring, and the stator is used to generate a spatially modulated traveling field, which is induced in the rotor Eddy currents interact.
  • the azimuth angle of the cylinder e.g. B.
  • the windings of the stator can be on one side of the one that forms the rotor Washer arranged. However, they are preferably symmetrical on both Sides of this disc arranged so that the axial components of the between The electromagnetic forces acting on the rotor and stator cancel each other out and not to a distortion of the rotor or the axis of the cylinder or axial stress on the bearings.
  • an end of a central cylinder 10 is for example in a front view of an impression cylinder of a flexographic printing machine shown one has a relatively large diameter and rotatable with its axis 12 is mounted in the frame of the printing machine, not shown.
  • Central cylinders 10 are the pressure cylinders, not shown, in a known manner several inking units, each with separate electric drives feature.
  • the electric drive for the central cylinder 10 is in through a rotor 14 in in the form of a disc firmly seated on the axis 12 and by an associated Stator 16 formed.
  • the diameter of the rotor 14 is in the example shown only a little smaller than the diameter of the central cylinder 10.
  • the outer The circumferential area of the rotor 14 is made of an electrically conductive ring 18 Material formed which at the rotation of the rotor at a short distance passes the stator 16.
  • the stator 16 is formed by a ring segment which the curvature of the ring 18 follows, but only over a circumferential angle extends from 50 ° or less at the lower apex of the rotor 14. In this position can the stator 16 with the help of a console 20 comfortably on not shown Fix the frame of the printing machine.
  • the stator is formed by two ring segments that are arranged, for example, on the upper and lower vertex of the rotor.
  • the stator 16 is designed so that it engages disc-shaped rotor 14 in the manner of a fork, and winding packages 22 are arranged symmetrically on both sides of the rotor.
  • the winding packages 22 form a sequence of individually controllable in the circumferential direction of the ring 18
  • Electromagnets and are known by a linear drives known per se Control electronics controlled so that they are spatially, in the circumferential direction of the ring 18, generate a modulated magnetic traveling field, which moves in the tangential direction of the ring 18.
  • This hiking field 18 eddy currents are induced in the ring by magnetic interaction effect the drive of the rotor 14 with the traveling field.
  • the rotor 14 carries near its outer peripheral edge, in the shown Example immediately within the ring 18, but optionally also on the outer peripheral surface, a wreath of markings 24, which together with a stationary sensor 26, for example an optical or capacitive Sensor, a high-resolution angle increment encoder for detecting the angular position form the central cylinder 10.
  • the signals of this angular increment encoder are transmitted to a control unit 28 housed in the console 20 and serve to regulate the speed and, if necessary, for precise Adjustment of the angular position of the central cylinder 10.
  • these can Signals for controlling the drives for the cylinders of the inking units, not shown can be used according to the master / slave principle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Press Drives And Press Lines (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Claims (3)

  1. Entraínement électrique pour cylindre (10) de rotative avec un stator (16) et un rotor (14) reposant sur l'axe (12) du cylindre, caractérisé par le fait que le stator (16) ne s'avance que sur une partie de la périphérie du rotor (14) et constitue un entraínement linéaire avec ce dernier.
  2. Entraínement selon la revendication 1 caractérisé par le fait que le rotor (14) est constitué d'un matériau conducteur au moins dans une zone annulaire (18) près de son rebord périphérique extérieur et que le stator (16) présente des blocs d'enroulements (22) afin de générer un champ d'ondes progressives se déplaçant dans le sens tangentiel du rotor, champ qui induit des courants actifs dans l'anneau (18) du rotor.
  3. Entraínement selon la revendication 1 ou 2 caractérisé par le fait que le stator (16) entoure le rebord du rotor (14) comme une fourche et présente des blocs d'enroulements (22) des deux côtés du rotor.
EP00104629A 2000-03-03 2000-03-03 Entraínement pour cylindres d'une machine d'impression Expired - Lifetime EP1129847B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE50004719T DE50004719D1 (de) 2000-03-03 2000-03-03 Antrieb für Zylinder einer Druckmaschine
AT00104629T ATE256011T1 (de) 2000-03-03 2000-03-03 Antrieb für zylinder einer druckmaschine
ES00104629T ES2209702T3 (es) 2000-03-03 2000-03-03 Accionamiento para cilindros de una maquina de imprenta.
EP00104629A EP1129847B1 (fr) 2000-03-03 2000-03-03 Entraínement pour cylindres d'une machine d'impression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00104629A EP1129847B1 (fr) 2000-03-03 2000-03-03 Entraínement pour cylindres d'une machine d'impression

Publications (2)

Publication Number Publication Date
EP1129847A1 EP1129847A1 (fr) 2001-09-05
EP1129847B1 true EP1129847B1 (fr) 2003-12-10

Family

ID=8168024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00104629A Expired - Lifetime EP1129847B1 (fr) 2000-03-03 2000-03-03 Entraínement pour cylindres d'une machine d'impression

Country Status (4)

Country Link
EP (1) EP1129847B1 (fr)
AT (1) ATE256011T1 (fr)
DE (1) DE50004719D1 (fr)
ES (1) ES2209702T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2073362A2 (fr) 2007-12-22 2009-06-24 Robert Bosch GmbH Entraînement linéaire pour mouvements de rotation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1019554C2 (nl) * 2001-12-12 2003-06-13 Skf Ab Magnetisch aangedreven excentrische cilinder-lagereenheid.
DE102005047661B4 (de) * 2005-06-23 2008-07-10 Koenig & Bauer Aktiengesellschaft Antrieb eines rotierenden Bauteils einer Druckmaschine
DE102006013590A1 (de) * 2006-03-22 2007-09-27 Siemens Ag Elektrische Maschine insbesondere ein Generator
DE102006013636B4 (de) * 2006-03-22 2012-02-09 Siemens Ag Druckmaschine bzw. elektrische Maschine für eine Druckmaschine
EP1980394A2 (fr) 2007-04-13 2008-10-15 Koenig & Bauer Aktiengesellschaft Corps tournant rotatif d'une presse
DE102007017941B4 (de) * 2007-04-13 2013-01-03 Koenig & Bauer Aktiengesellschaft Rotierend angetriebener Drehkörper einer Druckmaschine
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3447090A1 (de) * 1984-12-22 1986-06-26 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Verfahren und einrichtung zur bremsenkontrolle eines bewegungsueberwachten und -gesteuerten antriebsmotors in einer druckmaschine
DE9218057U1 (de) * 1992-04-21 1993-06-03 Albert-Frankenthal Ag, 6710 Frankenthal Rollenrotationsdruckmaschine - Druckwerk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2073362A2 (fr) 2007-12-22 2009-06-24 Robert Bosch GmbH Entraînement linéaire pour mouvements de rotation
DE102007062385A1 (de) 2007-12-22 2009-06-25 Robert Bosch Gmbh Linearantrieb für Rotationsbewegungen

Also Published As

Publication number Publication date
ATE256011T1 (de) 2003-12-15
ES2209702T3 (es) 2004-07-01
DE50004719D1 (de) 2004-01-22
EP1129847A1 (fr) 2001-09-05

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