EP0142874B1 - Cylindre d'impression avec dispositif de fixation des clichés en creux, pour rotatives - Google Patents

Cylindre d'impression avec dispositif de fixation des clichés en creux, pour rotatives Download PDF

Info

Publication number
EP0142874B1
EP0142874B1 EP84201435A EP84201435A EP0142874B1 EP 0142874 B1 EP0142874 B1 EP 0142874B1 EP 84201435 A EP84201435 A EP 84201435A EP 84201435 A EP84201435 A EP 84201435A EP 0142874 B1 EP0142874 B1 EP 0142874B1
Authority
EP
European Patent Office
Prior art keywords
groove
plate
tightening
plate cylinder
cylinder
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
Application number
EP84201435A
Other languages
German (de)
English (en)
Other versions
EP0142874A1 (fr
Inventor
Albrecht Josef Germann
Hartmut Karl Sauer
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.)
KBA Notasys SA
Original Assignee
De la Rue Giori SA
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 De la Rue Giori SA filed Critical De la Rue Giori SA
Priority to AT84201435T priority Critical patent/ATE33791T1/de
Publication of EP0142874A1 publication Critical patent/EP0142874A1/fr
Application granted granted Critical
Publication of EP0142874B1 publication Critical patent/EP0142874B1/fr
Expired legal-status Critical Current

Links

Images

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
    • B41F27/1243—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 pivotal or swivelling motion, e.g. by means of a rocking lever

Definitions

  • the invention relates to a forme cylinder for clamping printing plates set up for web printing machines according to the preamble of claim 1.
  • Such a forme cylinder is known from US-A-2 837 025.
  • a pair of separate wedge bolts are used, which are mounted axially aligned parallel to the forme cylinder axis in a bore of the forme cylinder body and each have a wedge surface, and a pair of wedge blocks cooperating with these wedge surfaces.
  • These wedge blocks have rounded surfaces on the side facing away from the wedge bolts, which abut seat surfaces of the tensioning strip.
  • their ends are provided with a thread onto which a nut is screwed.
  • the two wedge bolts By tightening both nuts, the two wedge bolts are shifted inwards against each other, whereby a clamping force is exerted on the clamping bar by means of the cooperating wedge surfaces, which tilts into its clamping position.
  • the requirement to produce a clamping force that is uniform over the entire width of the printing plate can only be met unsatisfactorily.
  • the printing plates intended for this known forme cylinder have specially rounded plate ends, which, lying directly on top of one another, are clamped between the rounded, lower end of the clamping bar and the likewise rounded bottom of the groove.
  • the width of the circumferential gap, which forms the mouth of the groove on the cylinder surface is smaller than the thickness of the upper region of the clamping bar in the vicinity of this circumferential gap, so that at least one, the circumferential gap and the upper region the groove-delimiting wall of the cylinder body is undercut, which affects the stability of the cylinder body en diaser position.
  • the fastening device In another known forme cylinder for engraving printing machines (DE-A-2 105 633), the fastening device consists of two straight, displaceably mounted clamping bars on which the two ends of a flexible engraving pressure plate are clamped by means of clamp screws, and of clamping screws with which the clamping bars are used for clamping the Pressure plate can be moved.
  • This arrangement requires relatively wide grooves in the form cylinder for accommodating the tensioning strips and the tensioning screws and is therefore not well suited for web-fed printing presses in which the interruptions formed by the grooves of the cylinder jacket covered with pressure plates should be as small as possible.
  • Another known fastening device for flexible pressure plates (DE-B-1 939 358) also has two displaceable tensioning bars for clamping the two pressure plate ends, while the tensioning device consists of hydraulic pistons guided in recesses in the tensioning bars, which are supported on a groove boundary wall.
  • This fastening device also requires a very wide groove in the forme cylinder.
  • a more simply constructed device for fastening printing plates to a forme cylinder is also known (US Pat. No. 2,209,127).
  • This device consists only of a holding part screwed in the middle of the groove on the groove bottom with a radially oriented T-shaped profile.
  • the plate ends protruding at approximately a right angle and protruding into the groove are bent in a V-shape, and for fastening the free V-legs to be pointed towards one another are simply pushed under the head of the T-shaped profile on both sides, so that the edges of the plate ends on the underside of this Head.
  • the invention has for its object to provide a form cylinder intended for web printing with plate fastening device, which requires only a small amount of space in the circumferential direction of the form cylinder and therefore only requires a groove of minimal width in the radius of the cylinder body, so that the cylinder body has the necessary fastness to the strong ones , maintains the compressive forces required in the steel engraving process.
  • the fastening device should have a simple structure and be designed in such a way that it is easier to handle and that the correct clamping of stiff nickel plates, as are preferably used for engraving, is made possible in the first place becomes.
  • both the preferably wedge-shaped clamping bar and the clamping piece can be made quite narrow and therefore the groove only has to have a relatively small width, so that the stability of the forme cylinder body in the region of the groove is only insignificantly impaired and that the clamping of the two plate ends and the clamping of the pressure plate, which is uniform over the entire width of the plate, takes place hydraulically by means of pistons arranged in a space-saving manner in the wall of the groove.
  • the forme cylinder according to the invention thus optimally fulfills the requirement important for web printing, according to which the circumferential gaps should be as narrow as possible, and allows the clamping of engraving pressure plates, in particular the very rigid nickel plates, using strong clamping forces.
  • the arrangement is preferably such that the clamping bar and clamping piece are loosely inserted into the groove and are supported on the groove bottom, that the wedge-shaped clamping bar is rounded at its lower end resting on the groove bottom and with its tapered end almost to the circumference of the forme cylinder is sufficient, while the clamping piece is shorter and extends in the radial direction only up to part of the height of the groove boundary wall, and that the groove tapers radially outwards and forms a narrow gap on the cylinder circumference, the width of which is only so large, that the tapered end of the tensioning bar and the two plate ends protruding into this gap can be accommodated with sufficient play to tension the plate.
  • a tensioning support is preferably provided between the tensioning bar and the groove-delimiting wall having the hydraulic pistons, which after tensioning and clamping the pressure plate with the aid of screws accessible at the end faces of the forme cylinder Clamping of the clamping bar can be pressed radially outwards.
  • the cylinder openings with the pistons and all hydraulic feed lines are accommodated in an insert which is fastened in an adapted recess of the forme cylinder including the groove and the circumferential surface of which exactly complements the circumferential surface of the forme cylinder.
  • Figure 1 shows a forme cylinder 1 with its two partially indicated shaft journals 2 and 3 and two flanges 4 and 5 attached on both sides at the front, which are fastened by means of screws 4a and 5a ( Figures 5 and 6).
  • a heating and cooling system 26 to 29, indicated by dashed lines is installed, which will be described later.
  • the forme cylinder 1 is set up to carry two flexible pressure plates P and P 'and for this purpose has two diametrically opposite grooves 6 which are open towards the cylinder circumference and into which the plate ends PA and P'B, which are bent radially inwards, have or P'A and PB of one and the other pressure plate P or P 'intervene.
  • These are engraving printing plates, and the form cylinder 1 is intended for a web printing press, that is to say for printing on paper webs using the engraving printing process.
  • each of the grooves 6 the cross section of which tapers radially outward, there are the parts belonging to the plate fastening device, namely a tensioning strip 7, a tensioning support 8 and a clamping piece 9 (FIG. 4).
  • the tensioning bar 7 is a narrow part with a wedge-shaped cross section, the length of which approximately corresponds to the depth of the groove 6 and which is inserted loosely into the groove 6 without any fastening means.
  • the thick, rounded end of the clamping bar 7 lies against the groove bottom, and its tapered end extends almost to the envelope of the outer surface of the forme cylinder 1 and is therefore in the narrow circumferential gap which the groove 6, which tapers outwards, forms at its mouth on the cylinder circumference ( Figures 3 and 4).
  • the clamping bar 7 can be used small, given by the width dimension of the groove 6 a little tilted about an axis parallel to the cylinder axis, its rounded end rolls on the groove bottom and its outer tapered end moves in the circumferential direction of the forme cylinder 1 within the small circumferential gap.
  • the clamping piece 9 lies between the left side of the tensioning strip 7 in the illustration according to FIGS. 3 and 4 and the opposite groove boundary wall and is a narrow part which also lies loosely against the groove bottom and is only about half as long as the tensioning strip 7 and is therefore itself extends only up to half the height of the groove boundary wall.
  • the tensioning support 8 is arranged, the design of which is shown in FIGS. 7 and 8 and which, as will be described later, after tensioning the assembled pressure plates for the purpose of mechanically clamping the tensioning bar 7 while lifting off Groove bottom can be pressed radially outwards.
  • the other groove-boundary wall is formed by an insert 10 which is fastened in a correspondingly adapted recess 11 of the forme cylinder 1 which includes the groove 6.
  • a tensioning device for the tensioning bar 7 is accommodated so that it can be tilted accordingly for tensioning the pressure plate P 'it holds, in the illustration according to FIG. 4 counterclockwise.
  • the correspondingly machined peripheral surface of the insert 10 exactly complements the peripheral surface of the forme cylinder 1. Screws 12 (FIG.
  • each insert 10 in corresponding cylinder openings 16, which are evenly distributed over the axial length of the forme cylinder 1.
  • the pistons 15 provided with 0-rings 15a come out of the groove-delimiting wall of the insert 10 when they are pressurized and push against the clamping bar 7, which is pressed to the left in the illustration according to FIG. 4 with strong force in this way, so that it is pivoted accordingly.
  • the tensioning support 8 is provided in the area of the pistons with recesses 8a (FIG. 7) which freely penetrate the pistons.
  • All cylinder openings 16 of each insert 10 are connected via individual feed lines 17 to a common feed line 18, which runs in the axial direction and runs in the axial direction of the forme cylinder 1, which leads to a closable inlet 19 located on one end face of the forme cylinder 1 (FIG. 6 ) that can be connected to an external hydraulic pressure source.
  • the feed lines 17 and 18 and the inlet 19 are all accommodated in or on the insert 10, the ends of which protrude on the end faces of the forme cylinder 1 and are accessible on the flanges 4 and 5.
  • the inner ends of the individual supply lines 17 on the side of the common line 18 facing away from the cylinder openings 16 are closed by grub screws 20.
  • the entire hydraulic system forming the tensioning device, together with its supply lines, is therefore accommodated in the insert 10 and is therefore easy to manufacture and assemble.
  • the described fastening device of the forme plate 1 prepared for the mounting of printing plates assumes the position shown in FIG. 3, in which the pistons 15 (FIG. 4) are retracted into the interior of the groove boundary wall, the tensioning support 8 rests on the groove bottom and before the printing plates are placed on it
  • Tensioning bar 7 rests with its tapered end on the outer end of the groove boundary wall of the insert 10.
  • the corresponding bent plate ends are inserted into the groove 6 when the pressure plates are placed on the circumference of the forme cylinder 1 in such a way that the plate end PA of the pressure plate P into the slot between the clamping piece 9 and the adjacent groove boundary wall and the end P'B of the pressure plate P 'between the clamping piece 9 and the clamping bar 7 ( Figure 4).
  • the side of the clamping piece 9 facing the adjacent groove boundary wall is stepped in this way formed such that the radially outer section, which extends over most of the length of this clamping piece 9, is offset by approximately the thickness of the pressure plate, forming a clamping surface 9b, while the inner section 9a abuts the groove boundary wall.
  • the clamping surface 9b is angled somewhat at about half the height, forming an edge.
  • the groove boundary wall opposite the clamping surface 9b has a correspondingly angled shape, so that an essentially parallel slot is formed between the clamping surface 9b and the groove boundary wall, into which the plate end PA is inserted up to the aforementioned edge, i.e. by the depth of the outer, non-angled clamping surface section .
  • the forme cylinder 1 rolls in the direction of the arrow in FIG. 4 on the counter-pressure cylinder, not shown, under strong pressure.
  • the boundary edge A of the forme cylinder 1 at the rear boundary of the circumferential gap seen in the direction of rotation represents the location of the start of printing, while after a cylinder rotation the other boundary edge E of the insert 10 represents the location of each print end.
  • Both boundary edges A and E are very slightly rounded, preferably with a small radius between 1.4 and 1.8 mm, in particular 1.6 mm, the rounding of the front boundary edge E being supplemented by the correspondingly rounded tapered end of the tensioning strip 7, that was worked on together with this boundary edge.
  • the angle at the boundary edge A is somewhat less than 90 ° and is preferably approximately 75 °.
  • the angle at the other boundary edge E between the contact surface of the clamping bar 7 and the adjacent peripheral section of the forme cylinder 1 is greater than 90 ° and is preferably approximately 105 °.
  • the configuration described above is particularly favorable, on the one hand, for tensioning the printing plates and, on the other hand, for maintaining the printing plates in a stable position during operation of the web printing machine, in particular under the effect of the strong pressure forces of the impression cylinder.
  • the pressure plates are tensioned by connecting the hydraulic system in each of the inserts 10 to an external pressure source and thus applying a predeterminable force to all the pistons 15.
  • the tensioning bar 7 is pivoted counterclockwise by the pistons 15 accordingly in accordance with FIG. 4, the tapered end of the tensioning bar 7 being lifted from the groove boundary wall of the insert 10 by a small distance, as is illustrated in FIG. 4. This process naturally takes place when, as in the example under consideration, the forme cylinder is set up to accommodate several printing plates, at all fastening and clamping points at the same time.
  • both plate ends which engage in each of the grooves 6, are clamped together at the same time between the clamping bar 7 and the clamping piece 9 or clamping piece 9 and the adjacent groove boundary wall.
  • the tensioning and the fastening of both plate ends in each groove thus takes place simultaneously by a single process, namely the actuation of the pistons 15 and the resulting pivoting of the clamping bars 7. Since their tapered end practically extends to the height of the cylinder jacket and lengthens when pivoting moves the envelope of this lateral surface, the pressure plate in question is stretched without deforming, only in the circumferential direction, but not under deformation over an edge or rounded base.
  • the hydraulically operating tensioning device ensures a force that acts uniformly on the pressure plate, the device allows perfect and strong tensioning, so that, above all, rigid nickel plates can be clamped properly.
  • the attachment 21 in question protrudes into an adapted recess 23 in the side wall of the insert 10, the ends of which likewise protrude on the end faces of the forme cylinder 1.
  • a screw 24 is screwed into each of the two threaded bores 22, which according to FIG. 5 finds space together with the projection 21 in the mentioned recess 23 of the insert 10 and the head thereof through a bore 25 made in the extension of the screw 24, which is on the outer circumference of the insert 10 opens, is accessible for screwing.
  • the tensioning support 8 In order to press the tensioning support 8 radially outwards after tensioning the pressure plates for the purpose of clamping the tensioning bar 7, the screws 24, which are supported on the bottom of the recesses 23, only to be sufficiently tightened.
  • the radially outer edge of the tensioning support 8 is rounded on the side facing the tensioning bar 7.
  • the tensioning support 8 is in its raised clamping position. The pressure acting on the pistons 15 can then be switched off and the hydraulic system can be separated from the external pressure source.
  • the fastening and tensioning device described requires a groove 6 of only a small width and, in particular, only a narrow circumferential gap at the mouth of the groove, the width of which is only dimensioned so large that the tapered end of the tensioning strip 7 and the two plate ends projecting into this circumferential gap are used for clamping the plates have adequate play; As particularly illustrated in FIG. 4, the width of the peripheral gap need only be approximately four to five times the printing plate thickness. This means that the circumference of the forme cylinder can be optimally used for the printing plates and the plate mounting gap that is undesirable in web-fed printing machines is reduced to a minimum. As a result, the mechanical strength of the forme cylinder against deflection and pressure is also fully retained in the area of the two plate ends, even under the very high pressures required in the engraving process, which are typically 5000-6000 N per cm line load.
  • the forme cylinder according to the invention can of course also be set up to accommodate more than two pressure plates and be equipped with a corresponding number of grooves and fastening devices: but it can also carry only a single pressure plate, in which case only a single groove is provided for the two plate ends .
  • the forme cylinder is also equipped with an internal heating and cooling system, which allows heating or cooling with a circulating heating or cooling medium as soon as the printing plates are clamped.
  • axially parallel lines 26 (FIGS. 1 and 5) are provided in the cylinder body in the vicinity of the cylinder jacket and are evenly distributed over the circumferential area.
  • adjacent lines 26 are mutually connected in pairs by parallel connecting channels 27 (FIGS. 2 and 5) such that the lines 26 form a continuous heating and cooling coil in each cylinder half delimited by the two grooves 6 .
  • Via radial lines 28 (FIGS. 1 and 5) the beginning and end of each heating and cooling coil are connected to a coaxial line 29 (FIGS. 1 and 2) which runs in the shaft journal 3 and which connects the heating or coolant supply line, for example in the inner channel, and contains the return line, for example in the radially outer channel.
  • the forme cylinder described is particularly suitable for working with an impression cylinder, which is described in older Swiss patent application No. 258/83 by the same applicant and which carries a rubber blanket which is fastened in a groove of very small width.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Plates And Materials Therefor (AREA)

Claims (10)

1. Cylindre porte-plaques (1) agencé pour la fixation de plaques d'impression taille-douce pour machines d'impression à la bobine, comprenant au moins une rainure (6) ouverte en direction de la périphérie du cylindre et un dispositif de fixation disposé dans cette rainure pour la fixation des deux extrémités des plaques (PA et P'B) engagées dans la rainure et dans lequel le dispositif de fixation comprend une tringle-tendeur (7) commune aux deux extrémités (PA, P'B) de la plaque et un dispositif de tension (15, 16) agissant sur l'un des côtés de la tringle-tendeur (7), la tringle-tendeur (7) présentant dans la direction radiale du cylindre porte-plaques (1) une dimension plus grande que dans le sens circonférenciel et étant basculable autour d'un axe parallèle à l'axe du cylindre, caractérisé en ce qu'entre la tringle-tendeur (7) et la paroi de la rainure située en face du dispositif de serrage (15, 16) est disposée une pièce de serrage (9) des deux côtés de laquelle sont formées des fentes dirigées approximativement radialement pour l'introduction des deux extrémités des plaques coudées approximativement radialement, et que le dispositif de tension est constitué de plusieurs pistons hydrauliques (15) dont les alésages (16) sont formés dans la paroi correspondante de la rainure, les extrémités des plaques (PA, P'B) étant simultanément pincées, d'une part, entre la pièce de serrage et la tringle-tendeur, et, d'autre part, entre la pièce de serrage et la paroi voisine de la rainure, par le basculement de la tringle-tendeur, lors de l'actionnement du dispositif de tension, la plaque d'impression (P) étant simultanément tendue.
2. Cylindre porte-plaques selon la revendication 1, caractérisé en ce que la tringle-tendeur (7) et la pièce de serrage (9) sont constituées par des pièces logées librement dans la rainure (6) et s'appuyant sur le fond de la rainure et que la tringle-tendeur (7) est en forme de coin, que son bord reposant sur le fond de la rainure est arrondi et qu'elle atteint approximativement l'enveloppe cylindrique du cylindre porte-plaques par son extrémité amincie, tandis que la pièce de serrage (9) est plus courte et ne s'étend radialement que jusqu'à une partie de la hauteur de la paroi voisine de la rainure, et en ce que la rainure (6) va en se rétrécissant vers l'extérieur et forme une fente étroite à la surface du cylindre, fente dont la largeur est juste suffisante pour que le bord aminci de la tringle-tendeur, (7) et les deux extrémités de la plaque d'impression engagée dans cette rainure trouvent place dans la fente avec un jeu suffisant pour la tension de la plaque (P).
3. Cylindre porte-plaques selon la revendication 2, caractérisé en ce que la face latérale de la tringle-tendeur (7) destinée à s'appuyer contre l'extrémité postérieure (P'B) de la plaque engagée dans la rainure (6) est adaptée, au moins dans sa partie située radialement à l'extérieur, à la courbure de la plaque d'impression et forme, avec l'extrémité de la surface du cylindre (1) limitée par la fente, l'arête-limite antérieure (E) de la fente - considérée dans le sens de rotation du cylindre porte-plaques en fonctionnementet définit un angle d'arete supérieur à 90°, de préférence environ 105°, tandis que la paroi de la rainure située du côté de la pièce de serrage constitue avec la surface du cylindre l'arête-limite postérieure (A) de la fente dont l'angle est inférieur à 90°, de préférence environ 75°.
4. Cylindre porte-plaques selon la revendication 3, caractérisé en ce que les deux arêtes-limites (A, E) de la rainure présentent un arrondi de petit rayon, de préférence 1,4 à 1,8 mm et que l'arrondi de l'arête-limite antérieure (E) est complété par le bord aminci de la tringle-tendeur (7) usinée en même temps que ladite arête-limite (E).
5. Cylindre porte-plaques selon l'une des revendications 1 à 4, caractérisé en ce que le côté de la pièce de serrage (9) en regard de la paroi de la rainure est étagé, sa partie intérieure (9a) étant en contact avec la paroi de la rainure, tandis que sa partie extérieure (9b) est en retrait d'environ l'épaisseur de la plaque d'impression de manière à former une fente avec la paroi de la rainure, la profondeur avec laquelle l'extrémité (PA) de la plaque d'impression pénètre dans ladite fente étant inférieure à la profondeur de cette fente.
6. Cylindre porte-plaques selon l'une des revendications 1 à 5, caractérisé en ce que l'une des faces de la tringle-tendeur (7), respectivement de la pièce de serrage (9) serrant chacune les deux extremités de la plaque est un peu coudée en formant une arête.
7. Cylindre porte-plaques selon l'une des revendications 1 à 6, caractérisé en ce qu'une cale (8) est disposée entre la tringle-tendeur (7) et la paroi de la rainure contenant les pistons (15), cette cale pouvant être déplacée radialement vers l'extérieur au moyen d'un dispositif de traction, de préférence des vis (24), après serrage et tension de la plaque d'impression de manière à maintenir la tringle-tendeur (7) dans sa position de tension, pour maintenir la plaque d'impression sous tension après la déconnexion de la pression hydraulique, le dispositif de traction (24) étant disposé aux faces frontales du cylindre porte-plaques et agissant sur des saillies (21) de la cale (8).
8. Cylindre porte-plaques selon l'une des revendications 1 à 7, caractérisé en ce que les alésages (16) des pistons, ainsi que les conduits hydrauliques, sont ménagés dans une pièce rapportée (10) logée dans un dégagement (11) du cylindre porte-plaques (1) incluant la rainure (6) et dont la face extérieure complète exactement la surface périphérique du cylindre porte-plaques (1
9. Cylindre porte-plaques selon la revendication 8, caractérisé en ce que la pièce rapportée (10) est fixée au moyen de vis (12) engagées dans des ouvertures (13) traversant le corps du cylindre porte-plaques et débouchant sur la surface du cylindre, ces ouvertures étant fermées par un bouchon (14) présentant une surface extérieure adaptée exactement à la surface périphérique du cylindre, après serrage des vis.
. 10. Cylindre porte-plaques selon l'une des revendications 1 à 9, caractérisé en ce qu'il est équipé d'un système de chauffage et de refroidissement (26 à 29).
EP84201435A 1983-11-14 1984-10-08 Cylindre d'impression avec dispositif de fixation des clichés en creux, pour rotatives Expired EP0142874B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84201435T ATE33791T1 (de) 1983-11-14 1984-10-08 Zum aufspannen von stichdruckplatten eingerichteter formzylinder fuer rollendruckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH611183 1983-11-14
CH6111/83 1983-11-14

Publications (2)

Publication Number Publication Date
EP0142874A1 EP0142874A1 (fr) 1985-05-29
EP0142874B1 true EP0142874B1 (fr) 1988-04-27

Family

ID=4304440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201435A Expired EP0142874B1 (fr) 1983-11-14 1984-10-08 Cylindre d'impression avec dispositif de fixation des clichés en creux, pour rotatives

Country Status (9)

Country Link
US (1) US4598642A (fr)
EP (1) EP0142874B1 (fr)
JP (1) JPS60116447A (fr)
AT (1) ATE33791T1 (fr)
AU (1) AU560116B2 (fr)
CA (1) CA1227373A (fr)
DD (1) DD228493A5 (fr)
DE (1) DE3470688D1 (fr)
SU (1) SU1366046A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028875B3 (de) * 2007-06-22 2008-08-21 Koenig & Bauer Aktiengesellschaft Zylinder einer Rotationsdruckmaschine mit einer Vorrichtung zum Halten mindestens eines Aufzugs auf dem Zylinder

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3516682A1 (de) * 1985-05-09 1986-11-13 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum parallelen spannen von druckplatten auf dem plattenzylinder von druckmaschinen
DE3616425A1 (de) * 1986-05-15 1987-11-19 Basf Ag Vorrichtung zum spannen von druckplatten
DE3626243A1 (de) * 1986-08-02 1988-02-04 Koenig & Bauer Ag Druckplattenbefestigungs- und spannvorrichtung
DE3731039A1 (de) * 1987-09-16 1989-03-30 Koenig & Bauer Ag Einrichtung zum klemmen biegsamer druckplatten auf dem plattenzylinder einer rotationsdruckmaschine
CA2038809C (fr) * 1990-04-24 1998-12-08 Albert Gevis Methode et appareil de montage de plaque d'impression a gorge etroite
US5107763A (en) * 1990-04-24 1992-04-28 Rockwell International Corporation Narrow gap plate mounting apparatus and method
US5335046A (en) * 1993-02-22 1994-08-02 Intergraph Corporation Clamping mechanism for use on a rotatable plotter drum
FR2709091B1 (fr) * 1993-08-20 1995-11-10 Heidelberg Harris Sa Dispositif à lame interchangeable pour maintenir une plaque d'impression sur un cylindre porte-plaque dans une imprimante rotative, et outil de démontage de la lame.
US5687647A (en) * 1996-04-26 1997-11-18 Heidelberger Druckmaschinen Ag Plate cylinder with fixed tensioning plate mounting device
WO2001026902A1 (fr) * 1999-10-08 2001-04-19 Koenig & Bauer Aktiengesellschaft Cylindre de presse rotative
EP1393925A1 (fr) 2002-09-02 2004-03-03 Kba-Giori S.A. Plaque d'impression taille-douce
DE102004042342B4 (de) * 2004-09-01 2008-02-14 Maschinenfabrik Wifag Spanneinrichtung für einen Spannkanal eines Zylinderkörpers, Druckformzylinder und Verfahren zur Herstellung
US8122826B2 (en) * 2008-04-28 2012-02-28 Goss International Americas, Inc. Infinitely variable cut off printing press

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052361A (fr) *
US1643145A (en) * 1925-08-28 1927-09-20 Winkler Carl Plate cylinder for rotary intaglio printing
US2056991A (en) * 1934-03-13 1936-10-13 Hoe & Co R Printing cylinder
US2900904A (en) * 1953-06-08 1959-08-25 Hantscho George Printing press rollers
US2837025A (en) * 1956-05-08 1958-06-03 American Can Co Clamping and tensioning device
US2965025A (en) * 1959-04-02 1960-12-20 Cottrell Company Printing plate lockup for wrap around plates
NL6511614A (fr) * 1964-10-26 1966-04-27
US3382799A (en) * 1966-07-29 1968-05-14 Cottrell Company Plate lockup means for offset or wraparound printing presses
DE6930610U (de) * 1968-08-01 1973-09-13 Nebiolo Spa Zylinder zum festen anbringen von blattfoermigen teilen, insbesondere formzylinder von rotationsdruckmaschinen zum tragen von biegsamen druckformen.
US3608487A (en) * 1969-08-27 1971-09-28 Harris Intertype Corp Flexible plate clamping assembly including inwardly bowed spring and movable jaw
US3715981A (en) * 1970-06-29 1973-02-13 Hamilton Tool Co Fluid actuator and lock for printing plate cylinders
US4292104A (en) * 1979-09-13 1981-09-29 Corning Glass Works Decalcomania manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028875B3 (de) * 2007-06-22 2008-08-21 Koenig & Bauer Aktiengesellschaft Zylinder einer Rotationsdruckmaschine mit einer Vorrichtung zum Halten mindestens eines Aufzugs auf dem Zylinder

Also Published As

Publication number Publication date
ATE33791T1 (de) 1988-05-15
DE3470688D1 (en) 1988-06-01
AU3471884A (en) 1985-05-23
CA1227373A (fr) 1987-09-29
JPS60116447A (ja) 1985-06-22
JPH0154196B2 (fr) 1989-11-17
SU1366046A3 (ru) 1988-01-07
AU560116B2 (en) 1987-03-26
US4598642A (en) 1986-07-08
EP0142874A1 (fr) 1985-05-29
DD228493A5 (de) 1985-10-16

Similar Documents

Publication Publication Date Title
DE2422696C2 (de) Druckwerk für ein- oder beidseitigen Druck mit mindestens vier Zylindern
EP0142874B1 (fr) Cylindre d'impression avec dispositif de fixation des clichés en creux, pour rotatives
DE4210316C2 (de) Klemm- und Spannvorrichtung für eine Druckplatte in einer Druckmaschine
EP0238804B1 (fr) Dispositif de fixation des clichés souples sur les cylindres de clichés dans les rotatives
DE3626243C2 (fr)
DE2804304C3 (de) Mit biegsamen Druckplatten versehener Formzylinder für Rotationstiefdruckmaschinen
DD216421A5 (de) Verfahren und vorrichtung zur befestigung und justierung einer druckplatte auf einem plattenzylinder einer rotationsdruckmaschine
DE2744371C3 (de) Vorrichtung zum Befestigen und Spannen von biegsamen Druckplatten
EP0201747A2 (fr) Dispositif pour tendre parallèlement les clichés sur le cylindre à cliché d'une machine à imprimer
DE4444062A1 (de) Verstellbare Ausrichtvorrichtung für Druckplatten
DE3315488A1 (de) Vorrichtung zum spannen von druckplatten
EP0755785B1 (fr) Dispositif de fixation d'une plaque avec réduction de la zône sans pression
DD295123A5 (de) Verfahren und vorrichtung zum befestigen von druckplatten auf dem plattenzylinder einer stichtiefdruckmaschine
DE2547481C3 (de) Vorrichtung zum Befestigen und Spannen von biegsamen Druckplatten
EP1276616A1 (fr) Dispositifs permettant de recouvrir un cylindre d'un habillage avec des elements de reperage
DE3401760A1 (de) Vorrichtung zum spannen von druckplatten
DE3115141C2 (de) Vorrichtung zum Diagonalverstellen eines Zylinders einer Druckmaschine, vorzugsweise des Plattenzylinders einer Bogenrotations-Offsetdruckmaschine
EP0316673B1 (fr) Dispositif pour tendre les clichés
WO2004065123A1 (fr) Presse rotative a bobines
DE4011303A1 (de) Vorrichtung zum befestigen eines gummituches auf einem gummizylinder einer offsetdruckmaschine
DE3807654A1 (de) Verfahren und vorrichtung zum wechseln und/oder (wieder-) anfahren von in baustuecken gelagerten walzen, rollen, scheren oder dgl.
DE19627034C2 (de) Einrichtung zum Betrieb eines Klischee-Zylinders
DE19801233A1 (de) Spannvorrichtung einer Platte für eine Druckmaschine
DE2143705A1 (de) Vorrichtung zum befestigen einer biegsamen druckplatte auf einem formzylinder einer rotationsdruckmaschine
CH641066A5 (en) Device for the fine blanking of a workpiece

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19851114

17Q First examination report despatched

Effective date: 19870113

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 33791

Country of ref document: AT

Date of ref document: 19880515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3470688

Country of ref document: DE

Date of ref document: 19880601

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 84201435.9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950901

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950919

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950929

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19951013

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19951017

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19951020

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19961008

Ref country code: AT

Effective date: 19961008

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19961009

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19961031

Ref country code: CH

Effective date: 19961031

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19961008

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19970630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970701

EUG Se: european patent has lapsed

Ref document number: 84201435.9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST