EP0598791B1 - Dispositif pour le serrage et l'ajustement de plaques d'impression flexibles sur des cylindres porte-plaque de presses rotatives - Google Patents

Dispositif pour le serrage et l'ajustement de plaques d'impression flexibles sur des cylindres porte-plaque de presses rotatives Download PDF

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Publication number
EP0598791B1
EP0598791B1 EP92917117A EP92917117A EP0598791B1 EP 0598791 B1 EP0598791 B1 EP 0598791B1 EP 92917117 A EP92917117 A EP 92917117A EP 92917117 A EP92917117 A EP 92917117A EP 0598791 B1 EP0598791 B1 EP 0598791B1
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EP
European Patent Office
Prior art keywords
channel
tensioning
rail
cylinder
movement
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
EP92917117A
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German (de)
English (en)
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EP0598791A1 (fr
Inventor
Jürgen Alfred Stiel
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.)
Koenig and Bauer AG
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Koenig and Bauer Albert AG
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Publication date
Application filed by Koenig and Bauer Albert AG filed Critical Koenig and Bauer Albert AG
Publication of EP0598791A1 publication Critical patent/EP0598791A1/fr
Application granted granted Critical
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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
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1231—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially tangential to support surface

Definitions

  • the invention relates to a device for tensioning and adjusting flexible printing plates on plate cylinders of rotary printing presses according to the preamble of claims 1 and 2.
  • a device for register-holding clamping of printing plates in printing presses in which a clamping rail has wedge planes arranged in mirror image.
  • Link wedge planes of link blocks arranged on an adjusting spindle with opposite thread can be set against these wedge planes, so that the tensioning rail is tensioned parallel to the cylinder axis.
  • a disadvantage of this device is that the channel just to accommodate these actuators effective in the plate clamping direction must have a certain width.
  • Another disadvantage is that a large number of lever arrangements are used and an adjustment of the pressure plate is not possible due to the parallel guidance of scissor arms.
  • the invention has for its object to provide a device for remote clamping and remotely actuated, also one-piece adjustment of flexible printing plates on plate cylinders of sheet-fed rotary printing presses, in which the space required for the device for generating the force for the clamping movement is small.
  • the arrangement of two drives in particular has made it possible to tension and adjust the pressure plate by simply linearly deflecting a pressure plate end.
  • a pivoting or diagonal adjustment of the pressure plate is also possible if the second quick release device for Holding and tensioning the pressure plate leading edge is provided with a drive according to the invention.
  • FIG. 1 shows a longitudinal section through the channel of the plate cylinder with the device according to the invention.
  • the section runs along the line CD according to FIG. 4.
  • the associated FIG. 1 shows this section.
  • the parts shown in FIG. 4 are present twice in mirror-image form per cylinder. This is illustrated by a perpendicular center line 37.
  • the plate cylinder 1 has an axially extending channel 2 on its surface; 3, which in each case in its length from the end faces 4; 6 of the plate cylinder 1 and bases 7; 8 is limited. Between the bases 7; 8 there is a channel pit 9, which is opposite the channels 2; 3 is located lower to accommodate the drive of the device.
  • the base 7 ends in a slope 11 running in the direction of the channel pit 9, while a surface 12 of the base 8 runs horizontally.
  • a pressure bar 13 extending in the axial direction is arranged in a recess between the upper channel side wall 14 and the lower channel side wall 16.
  • the pressure bar 13 has on the side facing the channel pit 9 two wedge-shaped shoulders 17; 18, which are in direct connection with the slope 11 of the base 7 and indirectly with the horizontal surface 12 of the base 8.
  • the slope 11 extends at an angle ⁇ to the horizontal, which corresponds to the angle ⁇ of the wedge-shaped shoulder 17.
  • the amount of the angle can be between 5 o and 30 o .
  • Flat needle cages 21 can be arranged on the surfaces which are operatively connected to one another to reduce the friction.
  • the angle ⁇ of the wedge-shaped shoulder 18 corresponds to the angle ⁇ of the wedge 19.
  • the wedge 19 has a threaded bore in the axial direction and can be moved on a threaded spindle 22 in the axis-parallel direction E, since the threaded spindle 22 on the one hand has a stop 23 on the end face 6 of the plate cylinder 1 is supported and on the other hand is rotatably connected to a gear 24.
  • the gear 24 meshes with a gear 26, which in turn is connected to a motor 28 in a rotationally fixed manner via a shaft 27.
  • the motor 28 is attached to the channel pit 9.
  • the pressure bar 13 has on its side facing away from the channel side wall 16, starting approximately from the last third of its end remote from the channel, a bevel 29 which runs in the direction of the upper channel side wall 14 and which has a projection 31, for. B. a dome-shaped end 31 or a counter slope of an adjusting screw 32 is operatively connected.
  • a known clamping rail 34 of a quick-action clamping device is arranged on the clamping rail 33. Between tensioning rail 33 and clamping rail 34 is one Pressure plate 36 held.
  • the tensioning rail 33 is supported with its side pointing in the direction of the center line 37 by means of springs 35 on a partition 39 running parallel to the center line 37.
  • the center line 37 runs through the axis of rotation 35 of the plate cylinder 1.
  • a pressure plate 36 is held in a clamping device, not shown in FIG. 4, but arranged in mirror image fashion beyond the center line 37, applied to the outer surface of the plate cylinder 1 and between the tensioning rail 33 and the clamping rail 34 by a not described, but z. B. according to DE 36 04 071 C2 known mechanism.
  • the motor 28, which is designed as a DC motor with torque limitation and positioning device, drives via the transmission 27; 26; 24; 22; 23; 6 on the internally threaded wedge 19 which, depending on the direction of rotation of the motor 28, can be moved in the axis-parallel direction E.
  • the pressure bar 13 experiences an up and down movement in radial or approximately radial direction F, at most by a distance h.
  • the pressure bar 13 is against its bevel 29 against the dome-shaped end 31 of the set screw 32 is pressed. This results in a movement of the tensioning rail 33 in the direction of a secant 45 to the plate cylinder 1, which the cylinder channel 2; 3 cuts.
  • the secant 45 extends at an angle ⁇ to the radially movable pressure bar 13.
  • the angle ⁇ is preferably 90 ° , but can be between 45 ° and 95 ° .
  • the secant 45 runs in the upper third i of the total depth of the cylinder channel 2; 3.
  • the pressure plate 36 is tensioned. When the pressure plate 36 is tensioned, there is not only a radial movement of the pressure bar 13, but also a compensating axial movement in the direction K until the preset current consumption of the motor 28 is reached and the motor 28 switches off.
  • the maximum distances to be covered h; i of the wedge surfaces 17; 18 and 29 of the pressure bar 13 can be the same.
  • the force is transmitted directly to the tensioning rail 33 as a compressive force without a bending moment.
  • the force is applied not far from the pressure plate 36, almost on the upper channel side wall 14.
  • a pneumatic motor can also be used as the motor 28.
  • the reset is carried out as a result of the reversal of the direction of rotation of the motor 28 and is facilitated by the action of the springs 38.
  • low demands are placed on the manufacturing tolerances; a simple drive is required.
  • the drive energy, commands and pulses are transmitted to the rotating cylinder 1 without contact.
  • both electric motors of 40 W each can be supplied with power.
  • a data stream is transmitted to query sensors or to control motors.
  • a stable DC power supply is available for the motors arranged in cylinder 1, regardless of the instantaneous angle of rotation.
  • Such a non-contact power transmission system is e.g. B. offered by Mesa Systemtechnik GmbH in Constance.
  • FIG. 2 shows a second embodiment variant of the device.
  • the differences of this embodiment variant from that according to FIG. 1 consist in the fact that a second wedge 19 'formed on one side is provided which is supported against a base 8' with a horizontal surface.
  • a threaded spindle 22 ' is overhung, provided with an opposite thread and connects the wedges 19; 19 'with each other.
  • FIG. 3 shows a third embodiment variant of the device for tensioning and adjusting flexible pressure plates.
  • a second drive 28 '; 27 '; 26 '; 24 '; 22 ''; 23 ' is provided, which is arranged in mirror image to that shown in FIG. 1.
  • a second wedge 19 ' is also required, which is supported on a base 8' with a horizontal surface.
  • the pressure bar 13 ' is on its towards the end faces 4; 6 of the plate cylinder 1 facing ends again with curves 41.
  • This arrangement with two separate drives makes it possible to initially operate these motors parallel to tensioning and compensating the pressure plate and to carry out a subsequent adjustment by applying a setpoint, for example, to a motor.
  • the pressure bar 13 ′′ has a semicircular bearing surface 40 pointing in the direction of the channel pit 9 on a third wedge 19 ′′ formed on one side, which accordingly has a semicircular groove when viewed in cross section.
  • the side of the pressure bar 13 ′′ opposite the said side has a bevel 29 ′ at its end which runs from the side remote from the channel side wall to the lower channel side wall 16 and corresponds approximately to the path i.
  • This bevel 29 ' is operatively connected to an opposite bevel 31' and runs between the upper and lower channel side wall 14; 16 and runs approximately parallel to the jacket of the plate cylinder 1.
  • the function is as follows.
  • the drive with one or more motors 28 according to FIGS. 1 to 3 is switched on and the wedge 19 '' is set in motion.
  • the pressure bar 13 ′′ experiences a radial movement in the direction F and comes into contact with the bevel 29 ′ to the bevel 31 ′ of the channel side wall.
  • the pressure bar 13 ′′ comes into operative connection at point 42 with the tensioning rail 33 ′, which moves in the tensioning direction of the pressure plate 36.
  • the bearing surface 40 of the pressure bar 13 ′′ which is semicircular in cross section, carries out a slight movement in the direction of M in its bearing seat.
  • This embodiment variant can be used as an alternative to that shown in FIG. 4.
  • the pressure screws 32 can in the axial direction just like the springs 38 several times, for. H. four times, arranged side by side.
  • the set screws 32 are used for fine adjustment when clamping the plates and can be adjusted via the adjustment body 43.
  • the adjusting body 43 are firmly connected to the set screws 32 and can be circumferentially inserted with a cylindrical body to be inserted in the radial direction, e.g. B. a pen to be moved. This is particularly the case in the embodiment variant shown in FIG. 3 by means of two separate drives via motors 28; 28 'an advantage.
  • FIG. 6 to 9 show embodiment variants for drives according to FIG. 3 for generating a radial movement F of the pressure bar 13 '.
  • a motor 28 ' mounted in the channel pit 9 and a drive 24'; connected to a threaded spindle 52; 26 '; 27 'moves the pressure bar 13' directly in the radial direction F by the threaded spindle 22 'with the fixed gear 24' located thereon being rotatable in a threaded hole 44 arranged in the radial direction F in the channel 2.
  • the drive is provided as in FIG. 3, with the special feature that the pressure bar 13 ′ on its side facing the channel base 2
  • Each side has a nose 46 which cooperates with the one-sided wedge surface of the wedge 19 '.
  • a shaft 27 'driven by a motor in the channel 2 is shown, on which an eccentric disc 47 is fixedly arranged and which, due to its rotation in the direction N, causes the pressure bar 13' to move in the radial direction F with the special feature that that the direction of the eccentric disc 47 is perpendicular to the direction of rotation of the plate cylinder 1.
  • a motor 28 ' is arranged in the channel pit 9, which is connected via a gear 27', 26 ', 24' to a spindle 48 on which an eccentric disk 47 is arranged in a rotationally fixed manner.
  • the spindle 48 ' is on both sides of the eccentric 47 on the channel base 2 via bearing bushes 49; 51 stored.

Abstract

Un dispositif pour le serrage et l'ajustement de plaques d'impression flexibles (36) sur des cylindres porte-plaque (1) de presses rotatives permet d'obtenir un serrage automatique et un ajustement partiel des plaques d'impression (36), tout en maintenant une faible largeur de canal et des pertes de transmission peu élevées. Selon l'invention, une barre de pression (13) est déplaçable dans le sens radial par des moyens de positionnement (19, 22, 24, 26, 28), déclenchant ainsi via des surfaces coniques (17, 18) et une sécante (45) coupant dans un angle β d'environ 90 °C le canal de cylindre, un mouvement de serrage et d'ajustement du rail de serrage (33) de la plaque.

Claims (9)

  1. Dispositif de serrage de plaques d'impression flexibles sur des cylindres porte-plaque de presses rotatives avec une glissière de serrage et de mise sous tension disposée dans un canal courant parallèlement à l'axe, agissant à peu près tangentiellement par rapport à la surface d'enveloppe du cylindre et saisissant les extrémités des plaques d'impression, caractérisé en ce qu'une bande de pressage (13) s'étendant en direction axiale est déplaçable en direction radiale (F) à une des ses extrémités, tournée vers un axe de rotation (31), du cylindre porte-plaque (1), à l'aide de moyens de réglage (22, 23, 19, 24, 26, 27, 28; 22'',23', 19', 24', 26', 27', 28' ; 19, 22' 24, 26, 27, 28, 19'; 23', 22'', 19', 24', 26', 27', 28', 46, 28', 27', 26', 24', 52, 44; 27', 47; 28', 27', 26', 24', 48, 51, 47) se trouvant au fond (2; 3; 9) du canal, en ce que la bande de pressage (13) est reliée fonctionnellement par rapport au cylindre porte-plaque (1) à sa deuxième extrémité tournée vers la périphérie du cylindre porte-plaque (1), par l'intermédiaire d'une glissière de mise sous tension (33) présentant un creusement (29') avec une saillie (31) sur une sécante (45) coupant le canal de cylindre (4; 6) et s'étendant sous un angle (β) par rapport à la direction radiale de déplacement (F), de sorte que la glissière de mise sous tension (33) effectue un mouvement de mise sous tension et un mouvement d'ajustement (G).
  2. Dispositif de serrage de plaques d'impression flexibles sur des cylindres porte-plaque de presses rotatives avec une glissière de serrage et de mise sous tension disposée dans un canal courant parallèlement à l'axe, agissant à peu près tangentiellement par rapport à la surface d'enveloppe du cylindre et saisissant les extrémités des plaques d'impression, caractérisé en ce qu'une bande de pressage (13'') s'étendent en direction radiale est déplaçable d'abord en direction radiale (F) à une première des ses extrémités tournée vers un axe de rotation (35), à l'aide d'un moyen de réglage (22, 23, 19, 24, 26, 27, 28; 22'', 23', 19', 24', 26', 27', 28' ; 19, 22' 24, 26, 27, 28, 19'; 23', 22'', 19', 24', 26', 27', 28', 46, 28', 27', 26', 24', 52, 44; 27', 47; 28', 27', 26', 24', 48, 51, 47) se trouvant dans le fond (2; 3; 9) du canal, en ce que la bande de pressage (13'') coopère avec un creusement (29') se trouvant sur sa deuxième extrémité tournée vers la périphérie, sur un creusement conjugué (31'') s'étendent entre une paroi latérale de canal supérieur et inférieur (14; 16), de sorte que la bande de pressage (13'') effectue un mouvement de pivotement (M) de faible ampleur en direction d'une sécante (45) courant sous un angle (β) par rapport à la direction de déplacement radiale (F) et coupant le canal de cylindre (4; 6), de sorte que la glissière de mise sous tension (33) produise un mouvement de serrage et d'ajustement.
  3. Dispositif selon les revendications 1 et 2, caractérisé en ce que la sécante (45) s'étend dans le tiers supérieur (i), limitrophe à la périphérie du cylindre porte-plaque (1), de la profondeur totale du cylindre de canal (2; 3).
  4. Dispositif selon les revendications 1 à 3, caractérisé en ce que l'angle (β) fait entre la bande de pressage (13; 13'; 13'') déplaçable en direction radiale (F) et la sécante (45) courant dans la direction de mise sous tension de plaques (G) est compris entre 45° et 95°, en faisant de préférence 90°.
  5. Dispositif selon la revendication 1, caractérisé en ce que les saillies (31) sont réalisées sous forme d'extrémités, en forme de calottes, de vis de réglage (32) d'une glissière de mise sous tension (33).
  6. Dispositif selon la revendication 1, caractérisé en ce que les saillies (31) sont réalisées sous forme de surfaces conjuguées disposées sur la glissière de mise sous tension (33).
  7. Dispositif selon les revendications 1 à 6, caractérisé en ce que les moyens de réglage disposés dans le fond de canal (2; 3; 9) sont réalisés, en vue de produire la direction de déplacement radial (F), sous forme de disque excentrique (47) ou de broche de réglage (52) sur l'extrémité inférieure, tournée dans la direction du fond de canal (9), de la bande de pressage (13; 13'; 13'').
  8. Dispositif selon les revendications 1 à 6, caractérisé en ce que les moyens de réglage disposés dans le fond de canal (2; 3; 9), en vue de produire la direction de déplacement radial (F) sont réalisés, sur l'extrémité inférieure, tournée dans la direction du fond de canal (9), de la bande de pressage (13; 13'; 13'') sous forme de décrochements (17; 18) cunéiformes courant sous un angle (α) par rapport à l'horizontale et disposés sur la bande de pressage (13; 13'; 13''), décrochements déplaçables contre une pente conjuguée (11) courant également sous un angle (α) ou contre des éléments cunéiformes conjugués (19; 19'; 19'') réalisés sur une face et déplaçables dans la direction (E) parallèle à l'axe au moyen d'entraînements (22; 24; 26; 27; 28).
  9. Dispositif selon les revendications 1 à 8, caractérisé en ce que les moyens de réglage agissant sur l'extrémité inférieure tournée dans la direction du fond de canal (9) sont constituées au moins d'un entraînement (22; 24; 26; 27; 28).
EP92917117A 1991-08-16 1992-08-14 Dispositif pour le serrage et l'ajustement de plaques d'impression flexibles sur des cylindres porte-plaque de presses rotatives Expired - Lifetime EP0598791B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4127232 1991-08-16
DE4127232 1991-08-16
DE4226565A DE4226565A1 (de) 1991-08-16 1992-08-12 Einrichtung zum spannen und justieren von biegsamen druckplatten auf plattenzylindern von rotationsdruckmaschinen
DE4226565 1992-08-12
PCT/DE1992/000684 WO1993003925A1 (fr) 1991-08-16 1992-08-14 Dispositif pour le serrage et l'ajustement de plaques d'impression flexibles sur des cylindres porte-plaque de presses rotatives

Publications (2)

Publication Number Publication Date
EP0598791A1 EP0598791A1 (fr) 1994-06-01
EP0598791B1 true EP0598791B1 (fr) 1996-03-06

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EP92917117A Expired - Lifetime EP0598791B1 (fr) 1991-08-16 1992-08-14 Dispositif pour le serrage et l'ajustement de plaques d'impression flexibles sur des cylindres porte-plaque de presses rotatives

Country Status (5)

Country Link
US (1) US5398609A (fr)
EP (1) EP0598791B1 (fr)
JP (1) JPH06504741A (fr)
DE (3) DE4226565A1 (fr)
WO (1) WO1993003925A1 (fr)

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JP5638166B2 (ja) 2011-06-30 2014-12-10 ケーニツヒ ウント バウエル アクチエンゲゼルシヤフトＫｏｅｎｉｇ ＆ Ｂａｕｅｒ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ 版胴と版胴に配置された少なくとも１枚の刷版とを備える装置
EP2726293B1 (fr) * 2011-06-30 2015-08-26 Koenig & Bauer Aktiengesellschaft Procédé de montage et d'alignement d'une plaque d'impression sur un cylindre porte-plaque d'une presse d'impression offset multicolore
CN103608181B (zh) 2011-06-30 2015-04-22 柯尼格及包尔公开股份有限公司 用于将印板布置到印板滚筒上的方法
DE102012202078B3 (de) * 2012-02-13 2013-02-28 Koenig & Bauer Aktiengesellschaft Zylinder einer Rotationsdruckmaschine
DE102012202076B3 (de) * 2012-02-13 2013-04-25 Koenig & Bauer Aktiengesellschaft Zylinder einer Rotationsdruckmaschine
DE102012207101B4 (de) 2012-04-27 2016-06-23 Koenig & Bauer Ag Plattenzylinder
DE102012207106B4 (de) 2012-04-27 2015-04-02 Koenig & Bauer Aktiengesellschaft Plattenzylinder
DE102012207109B3 (de) * 2012-04-27 2013-05-02 Koenig & Bauer Aktiengesellschaft Verfahren zum Anordnen einer Druckform auf einen Plattenzylinder
DE102012207111B3 (de) * 2012-04-27 2013-05-02 Koenig & Bauer Aktiengesellschaft Verfahren zum Anordnen einer Druckform auf einen Plattenzylinder
DE102012214585B4 (de) 2012-08-16 2014-09-04 Koenig & Bauer Aktiengesellschaft Verfahren zum registerhaltigen Anordnen jeweils zumindest einer Druckplatte auf zumindest zwei Plattenzylindern einer Druckmaschine und ein System zur Registerregelung
DE102012214587B4 (de) 2012-08-16 2014-05-22 Koenig & Bauer Aktiengesellschaft Verfahren zum Anordnen jeweils zumindest einer Druckplatte auf zumindest zwei Plattenzylindern
DE102012220736B4 (de) 2012-11-14 2017-01-05 Koenig & Bauer Ag Sicherheitseinrichtung eines Plattenzylinders einer Druckmaschine und ein Verfahren zur Sicherung eines Plattenzylinders einer Druckmaschine
DE102015216153A1 (de) 2015-08-25 2017-03-02 Bayerische Motoren Werke Aktiengesellschaft Verbesserter Hochspannungsschalter

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DE3936446A1 (de) * 1989-11-02 1991-05-08 Miller Johannisberg Druckmasch Plattenzylinder einer druckmaschine
DE4137948A1 (de) * 1990-11-19 1992-05-21 Sumitomo Heavy Industries Druckplatten-spannvorrichtung fuer eine druckmaschine
US5189958A (en) * 1991-04-05 1993-03-02 A. B. Dick Company Plate clamping system for a duplicating machine

Also Published As

Publication number Publication date
US5398609A (en) 1995-03-21
DE4226565A1 (de) 1993-02-18
DE9210964U1 (fr) 1992-11-12
WO1993003925A1 (fr) 1993-03-04
DE59205623D1 (de) 1996-04-11
JPH06504741A (ja) 1994-06-02
EP0598791A1 (fr) 1994-06-01

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