EP0990520B1 - Méthode et dispositif de prévention de collision dans machines d'impression - Google Patents

Méthode et dispositif de prévention de collision dans machines d'impression Download PDF

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Publication number
EP0990520B1
EP0990520B1 EP98116398A EP98116398A EP0990520B1 EP 0990520 B1 EP0990520 B1 EP 0990520B1 EP 98116398 A EP98116398 A EP 98116398A EP 98116398 A EP98116398 A EP 98116398A EP 0990520 B1 EP0990520 B1 EP 0990520B1
Authority
EP
European Patent Office
Prior art keywords
rotation
rotation element
drive
torque
actuating
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
EP98116398A
Other languages
German (de)
English (en)
Other versions
EP0990520A1 (fr
Inventor
Manfred Terstegen
Wilfried Dr. Kolbe
Klaus Schirrich
Bodo Steinmeier
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.)
Fischer and Krecke GmbH and Co KG
Original Assignee
Fischer and Krecke GmbH and Co 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 Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to DE59802253T priority Critical patent/DE59802253D1/de
Priority to EP98116398A priority patent/EP0990520B1/fr
Priority to ES98116398T priority patent/ES2166580T3/es
Priority to US09/376,257 priority patent/US6220162B1/en
Priority to JP11239740A priority patent/JP2000071426A/ja
Publication of EP0990520A1 publication Critical patent/EP0990520A1/fr
Application granted granted Critical
Publication of EP0990520B1 publication Critical patent/EP0990520B1/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
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/14—Automatic control of tripping devices by feelers, photoelectric devices, pneumatic devices, or other detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/20—Safety devices preventing damage

Definitions

  • the invention relates to a method and a device for collision monitoring in printing machines.
  • printing presses have a number of rotationally drivable rotary bodies on, each with the help of an associated actuator in one are movable to the direction perpendicular to the axis of rotation.
  • each inking unit comprises two such a rotating body, namely a printing cylinder and an application roller.
  • the application roller rolls on the printing cylinder, and the printing cylinder in turn rolls on the impression cylinder performed printing material, so that the printing ink from the applicator roller on the printing parts of the clichés of the printing cylinder is transmitted and then a corresponding print image is generated.
  • This collision monitoring is carried out in conventional printing presses by monitoring the drive torque of the actuators. If the Rotating body hits an obstacle during the adjustment process, so increased the drive torque transmitted by the actuator, and if this drive torque exceeds a certain threshold value this is an indication that a collision has occurred and the actuator is stopped.
  • the actuator for example a spindle drive
  • the actuator generally has large gear ratio, so that even with a relative small torque of the drive motor generates a high actuating force. Conversely, this means that the increase in resistance at a Collision counteracts the actuating movement, only to a proportionate leads to a slight increase in the transmitted torque.
  • the collision monitoring system is therefore relatively sluggish and inaccurate.
  • the sensitivity increases in that the threshold value is reduced at which the actuator is stopped, however, this threshold value must always be chosen so large that the not inconsiderable frictional forces that can be overcome at the actuating movement occur.
  • the object of the invention is therefore a more sensitive collision monitoring to enable.
  • the solution according to the invention is particularly advantageous in printing machines with single drive, for which the rotary drive of each rotary body separate drive motor is available. In this case it is for synchronization the synchronization of the rotating body anyway on each rotary drive Angular increment or torque sensor available, which is then also for the Collision monitoring can be used, so that a structural simplification of the collision monitoring system is reached.
  • a collision monitoring device based on the principle described above is the subject of claim 3.
  • the printing machine shown in FIG. 1 for example a flexographic printing machine, has a frame with two side parts 10, between which one Impression cylinder 12 is mounted. There is a console on each side part 10 14 set on which an inking unit 16 is mounted. In practice you can several inking units can be arranged on the same impression cylinder 12.
  • the inking unit 16 comprises an impression cylinder 18 and an application roller 20 with an associated chamber doctor blade 22.
  • the impression cylinder 18 and the application roller 20 are rotatably supported in bearing blocks 24 and 26, which in the direction the double arrows A and B slidably on the top of the console 14 are arranged.
  • Figure 1 shows the printing press in a state in which the impression cylinder 18 from the impression cylinder 12 and the application roller 20 is turned off by the pressure cylinder 18.
  • the Printing cylinder 18 placed on the impression cylinder 12 and the application roller 20 is placed on the pressure cylinder 18.
  • each of the bearing blocks 24, 26 is a spindle drive with a Servomotor 28 and 30 and a drive spindle 32 and 34 assigned.
  • the Spindle drives are each mounted on the console 14.
  • the inking unit 16 also includes two separate Drive motors 36 for the impression cylinder 18 and the application roller 20.
  • These drive motors 36 are on the drive side of the printing press (above in Figure 2) each directly on the shaft of the associated rotating body 18 or 20 arranged so that each rotational body through the associated drive motor 36 can be driven in rotation (single drive). The synchronization the rotating body is electronically controlled in a known manner.
  • Each of the drive motors 36 has an integrated torque transmitter T. which provides a torque signal to a controller 38, such as is indicated by arrows in Figure 2.
  • the control unit 38 transmits Control signals, in particular switch-on and switch-off signals, to the servomotors 28 and 30.
  • Control signals in particular switch-on and switch-off signals, to the servomotors 28 and 30.
  • Control signals In the drawing are only the control signals for the Actuators on the drive side symbolized by arrows. It goes without saying however, that corresponding control signals also the servomotors on the opposite Side of the machine frame are fed.
  • the pressure cylinder 18 is adjusted transversely to its axis of rotation, so during the adjustment process collision monitoring is carried out as follows.
  • the pressure cylinder 18 with the help of the drive motor 36 in slow rotation offset. That generated by the drive motor 36 Torque is monitored using the integrated torque sensor T. and continuously reported to the control device 38. If the Printing cylinder 18 with its circumference, for example on the impression cylinder 12 or abuts the applicator roller 20, the rotational movement is braked, and the detected drive torque increases accordingly. As soon as this drive torque exceeds an adjustable threshold value, the control device 38 transmits a switch-off signal to the servomotors 28, and the actuating movement is stopped before it is due to the collision damage can occur.
  • the pressure of the pressure roller 20 collision monitoring carried out. If the pressure cylinder 18 and the application roller 20 are adjusted simultaneously, the control device 28 collision monitoring for both rotating bodies simultaneously. The slow rotation of the printing cylinder 18 and the application roller 20 takes place in this case in the same direction of rotation, so that the rotation is braked and a correspondingly higher drive torque is generated when the The pressure cylinder 18 and the application roller touch each other with their circumference.
  • the doctor blade 22 is in a known manner with the help of a not shown Setting mechanism can be switched off from the application roller 20. During the setting process the chambered doctor blade is expediently put down from the application roller, so that the rotation of the applicator roller is not caused by touching the Chamber doctor blade is braked.
  • the drive motors 36 instead of the torque sensor T an integrated angle increment sensor ⁇ on.
  • the collision is based on the decrease in angular velocity detected when the impression cylinder or the application roller is braked by colliding with the obstacle.
  • the rotating body during the adjustment process is permanently driven. Because the impression cylinder and the application roller low-friction bearings in rolling bearings, it is sufficient to the rotating body rotate before the start of the adjustment process and then during of the actuating process to expire, so that the collision is based on a irregular decrease in angular velocity can be determined.

Landscapes

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

Claims (6)

  1. Procédé pour la surveillance des collisions dans une machine à imprimer avec au moins un corps de révolution (18 ; 20) entraíné en rotation et un moyen de positionnement (28 ; 30) pour déplacer le corps de révolution dans une direction perpendiculaire à l'axe de rotation, caractérisé en ce qu'on fait tourner le corps de révolution (18 ; 20) durant le mouvement de positionnement et on surveille la vitesse de rotation et/ou le couple d'entraínement pour le mouvement de rotation.
  2. Procédé selon la revendication 1, pour des machines à imprimer à deux corps de révolution (18, 20) qui peuvent se heurter l'un l'autre, caractérisé en ce qu'on fait tourner les deux corps de révolution (18 ; 20) dans le même sens de rotation durant le mouvement de positionnement lorsque les moyens de positionnement (28, 30) sont actionnés simultanément pour les deux corps de révolution.
  3. Dispositif pour la surveillance des collisions dans une machine à imprimer avec au moins un corps de révolution (18 ; 20) entraíné en rotation et un moyen de positionnement (28 ; 30) pour déplacer le corps de révolution dans une direction perpendiculaire à l'axe de rotation, caractérisé en ce qu'un transmetteur de couple (T) et/ou un transmetteur d'incréments angulaires (Ω) sont prévus pour capter le couple d'entraínement et/ou la vitesse de rotation du corps de révolution (18 ; 20), et en ce qu'un dispositif de commande (38) est agencé pour détecter une collision du corps de révolution avec un autre élément structurel à l'aide du signal du transmetteur de couple ou du transmetteur d'incréments angulaires et pour immobiliser ensuite le moyen de positionnement (28 ; 30).
  4. Dispositif selon la revendication 3, caractérisé en ce que le corps de révolution entraíné en rotation est un cylindre d'impression (18).
  5. Dispositif selon la revendication 3, caractérisé en ce que le corps de révolution entraíné en rotation est un rouleau applicateur (20).
  6. Dispositif selon l'une des revendications 3 à 5, caractérisé en ce que les corps de révolution (18, 20) sont entraínés individuellement, chacun par un moteur d'entraínement associé (36).
EP98116398A 1998-08-29 1998-08-29 Méthode et dispositif de prévention de collision dans machines d'impression Expired - Lifetime EP0990520B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59802253T DE59802253D1 (de) 1998-08-29 1998-08-29 Verfahren und Vorrichtung zur Kollisionsüberwachung in Druckmaschinen
EP98116398A EP0990520B1 (fr) 1998-08-29 1998-08-29 Méthode et dispositif de prévention de collision dans machines d'impression
ES98116398T ES2166580T3 (es) 1998-08-29 1998-08-29 Procedimiento y dispositivo para la prevencion de colisiones en maquinas de imprimir.
US09/376,257 US6220162B1 (en) 1998-08-29 1999-08-18 Method and apparatus for detecting collisions in printing machines
JP11239740A JP2000071426A (ja) 1998-08-29 1999-08-26 印刷機内の衝突検知のための装置および方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98116398A EP0990520B1 (fr) 1998-08-29 1998-08-29 Méthode et dispositif de prévention de collision dans machines d'impression

Publications (2)

Publication Number Publication Date
EP0990520A1 EP0990520A1 (fr) 2000-04-05
EP0990520B1 true EP0990520B1 (fr) 2001-11-28

Family

ID=8232541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98116398A Expired - Lifetime EP0990520B1 (fr) 1998-08-29 1998-08-29 Méthode et dispositif de prévention de collision dans machines d'impression

Country Status (5)

Country Link
US (1) US6220162B1 (fr)
EP (1) EP0990520B1 (fr)
JP (1) JP2000071426A (fr)
DE (1) DE59802253D1 (fr)
ES (1) ES2166580T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2191998T3 (es) * 1999-07-09 2003-09-16 Gallus Ferd Ruesch Ag Dispositivo de ajuste de la distancia para las herramientas de mecanismos de impresion.
DE10223666B4 (de) 2002-05-28 2006-06-14 Windmöller & Hölscher Kg Farbwerksaufbau bei Flexodruckmaschinen
DE10304109A1 (de) * 2003-01-31 2004-08-19 Windmöller & Hölscher Kg Druckwerk einer Druckmaschine
DK1683633T3 (da) * 2005-01-24 2011-12-05 Gallus Ferd Rueesch Ag Dybtrykværk til påtrykning af en påtrykningsstofbane i en trykkemaskine
DE102005003206A1 (de) * 2005-01-24 2006-07-27 Gallus Ferd. Rüesch AG Tiefdruckwerk zum Bedrucken einer Bedruckstoffbahn in einer Druckmaschine
DE102006003013B4 (de) * 2005-06-17 2011-03-03 Koenig & Bauer Aktiengesellschaft Flexodruckmaschine
DE102006041126A1 (de) * 2006-09-01 2008-03-06 Man Roland Druckmaschinen Ag Druckmaschine und Verfahren zum Betreiben einer Druckmaschine
DE102009025053A1 (de) * 2009-06-10 2010-12-16 Windmöller & Hölscher Kg Vorrichtung und Verfahren zum gegenseitigen Anstellen zumindest zweier Zylinder einer Druckmaschine
ES2395184B1 (es) * 2011-08-12 2013-11-28 Comexi Group Industries, Sau Método de ajuste de presiones en una impresora flexográfica y máquina flexográfica para su implementación.
ES2395183B1 (es) * 2011-08-12 2013-11-28 Comexi Group Industries, Sau Método para ajuste de presiones en una máquina impresora flexográfica y máquina impresora flexográfica para su implementación.
CN111873607B (zh) * 2020-07-31 2021-11-09 河北万杰机械科技股份有限公司 一种印刷复制用油墨涂覆设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1200910B (it) * 1985-12-19 1989-01-27 Graphic Machine Service Srl Macchina flessografica
DE4001735A1 (de) * 1990-01-22 1991-07-25 Windmoeller & Hoelscher Vorrichtung zum verfahren von wellen lagernden lagerboecken
DE4013106C1 (fr) * 1990-04-25 1991-12-12 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
CH683606A5 (fr) * 1990-04-26 1994-04-15 Bobst Sa Dispositif avec vérin à précontrainte de contrôle de la pression de travail entre deux cylindres rotatifs coatifs dans une machine de traitement de matière en bande.
JP3501844B2 (ja) * 1994-05-06 2004-03-02 株式会社小森コーポレーション 胴着脱装置
DE19720952C2 (de) * 1997-05-17 2001-02-01 Roland Man Druckmasch Schwenkbarer, durch einen elektrischen Einzelantrieb angetriebener Zylinder

Also Published As

Publication number Publication date
EP0990520A1 (fr) 2000-04-05
JP2000071426A (ja) 2000-03-07
ES2166580T3 (es) 2002-04-16
US6220162B1 (en) 2001-04-24
DE59802253D1 (de) 2002-01-10

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