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EP0619185B1 - Dispositif pour fabriquer un manchon, en particulier une plaque d'impression en forme de manchon à surface continue - Google Patents

Dispositif pour fabriquer un manchon, en particulier une plaque d'impression en forme de manchon à surface continue Download PDF

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Publication number
EP0619185B1
EP0619185B1 EP94105131A EP94105131A EP0619185B1 EP 0619185 B1 EP0619185 B1 EP 0619185B1 EP 94105131 A EP94105131 A EP 94105131A EP 94105131 A EP94105131 A EP 94105131A EP 0619185 B1 EP0619185 B1 EP 0619185B1
Authority
EP
European Patent Office
Prior art keywords
plate
cylinder
bars
retaining
bar
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
EP94105131A
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German (de)
English (en)
Other versions
EP0619185A1 (fr
Inventor
Eduard Dr. Hoffmann
Johann Winterholler
Wolfgang Prem
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0619185A1 publication Critical patent/EP0619185A1/fr
Application granted granted Critical
Publication of EP0619185B1 publication Critical patent/EP0619185B1/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
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes

Definitions

  • the invention relates to a device for producing a sleeve, in particular a sleeve-shaped printing form, with a coherent circumferential surface from a plate with a fitting hole system.
  • the older German patent application P 41 40 768 discloses a sleeve-shaped offset printing form which has a coherent, channel-free circumferential surface, so that it can be pushed onto the forme cylinder and can be positioned there in the working position in a friction-locked manner and in register.
  • the sleeve was made from a commercially available, cut pressure plate made of a metallic material, the plate edges being connected to one another from the start and end of the print, e.g. were welded that, apart from a connecting seam, the sleeve has an uninterrupted peripheral surface.
  • the pressure plate is provided with a fitting hole system, so that it can be clamped into a welding device in the correct position and welded along the longitudinal seam.
  • Each holder 1, 2, 3 has one or more lifting elements 4, which are distributed along each holder 1, 2, 3 and are designed as electrical holding magnets.
  • brackets 1, 2, 3, which can be carried out in accordance with the plate size used, can be carried out in a known manner, which is therefore not shown, by mounting the brackets 1, 2, 3 on rails and fixing them at desired locations are.
  • Two of the brackets 1, 2 are spaced apart according to the length of the plate and each hold a retaining bar 5, 6 in the starting position by the lifting elements 4 designed as holding magnets interacting with soft iron cores 7 arranged on the bars 5, 6.
  • a sliding table 8 is provided, on which the plate 9 to be formed (dashed) can be inserted.
  • both strips 5, 6 can be lowered onto the plate 9 and the plate edges to be connected by means of a pin register 10 of the strips 5, 6 and the fitting hole system of the plate 9 on the strips in register 5, 6 fixable.
  • the arrangement of the pins 10 on the strips 5, 6 is designed so that the pressure plate 9 provided with a correspondingly punched perforation can be fixed in register. All holes are located within the plate edges so that after the plate 9 has been bent, the holes lie outside the printing surface.
  • One bar 5 has the sliding table 8 as an abutment, while the other bar 6 engages the plate edge protruding beyond the sliding table 8. Below this edge, a rotatably mounted cylinder is provided as a counter bearing for this plate edge.
  • the lowerable bar 6 together with the plate edge fixed to it can be positioned on the cylinder 11 by means of holding magnets 12. These holding magnets 12 are either attached to the bar 6 (in the present example on both sides of the bar 6) and interact with correspondingly placed soft iron cores 13 on the cylinder 11, or vice versa.
  • the transversely displaceable bar 5 is designed as a slide and can be pulled along the table 8 and again by means of at least one endless transport chain 14, which is guided over cam rollers 15 and is supported by chain guides, not shown, in a sliding guide, not shown can be brought into their starting position.
  • displaceable bar 5 is resiliently mounted on both sides in U-shaped rails and this suspension limits the stroke of the bar 5 in the direction of movement of the lifting elements 4 of the holder 1, 3.
  • the transport chain 14 can also be guided in these rails in the way via the sliding table 8.
  • the endless transport chain 14 and also the transversely displaceable bar 5 can be guided over the cylinder 11 while maintaining a distance therefrom by at least the length of the pins 10, so that the cylinder 11 can be passed over without contact.
  • an extendable and retractable backdrop 16 is provided.
  • This can be a plurality of individual extendable segments or inflatable regions distributed along the cylinder 11 on the circumference of the cylinder 11.
  • the cylinder 11 can be provided within certain limits with a circumference that is somewhat larger than the plate length to be processed.
  • the retaining strips 5, 6 are lowered from the starting position onto the plate edges and the plate edges are fixed to the strips 5, 6 by means of the fitting hole system and pin register 10, the strip 6 by the electrical elements attached on both sides Holding magnets 12 non-positively connected to the cylinder 11, both strips 5, 6 detached from the holders 1, 2, the cylinder 11 is rotated through 360 °, so that the Sleeve shape 17 is generated while the strip 5 is pulled together with the plate edge fixed to it over the sliding table 8 and over the cylinder 11. If the rotation of the cylinder 11 is carried out, the bar 5, together with the plate edge fixed to it, is located below the third bracket 3 and can also be positioned on the cylinder 11 by means of the lifting elements 4 of this bracket 3, analogously to the other bar 6.
  • the cylinder 11 advantageously has a flattened shoulder 18 at these positioning points.
  • the positioning of the plate edges on the forme cylinder 11 can advantageously be supported in that the cylinder has register slots, into which the register pins 10 of the strips 5, 6 can engage through the plate edges.
  • the link 16 is now retracted or relieved of pressure and thus the circumference of the cylinder 11 is reduced, the one strip 5 can be moved against the other 6 until the plate edges come into contact and the plate edges can now be connected, or the welding process can take place.
  • FIGS. 3 and 4 A second exemplary embodiment is shown in FIGS. 3 and 4.
  • Two brackets 20, 21 are positioned in the same way as in the first exemplary embodiment in accordance with the plate size to be processed, and likewise the plate edges of the pressure plate 22 to be connected (dashed) by means of, as described in the first exemplary embodiment, the Pin register 23 and the fitting hole system on the two on the brackets 20, 21 by means of lifting elements 24 in the form of holding magnets and correspondingly attached soft iron cores 25 retaining strips 26, 27 can be fixed.
  • a rotatably mounted cylinder 28 Arranged underneath the one holder 21 is a rotatably mounted cylinder 28, which can also be moved transversely parallel to the plane in which the holders 20, 21 are arranged.
  • the cylinder 28 is mounted in a rail 29 and drive pinions 30, which act on the bearing axis 31 of the cylinder 28, roll on racks 32, so that a transverse and simultaneous circumferential movement is possible.
  • the cylinder 28 has a slightly smaller circumference than the shortest length of the plates 22 to be processed.
  • One of the strips 27 together with the plate edge fixed to it can be positioned on the cylinder 28 arranged below by means of the lifting elements 24 of its holder 21. Again, electric holding magnets 33 and soft iron cores 34 cooperating with them fix the strip 27 on the cylinder 28, while the holder 21 releases the strip 27, but the other strip 26, together with the plate edge attached to it, remains on its holder 20.
  • the cylinder 28 is now moved by means of a drive, the drive pinion 30 and racks 32 in the direction of the fixed bar 26. He makes a rotation through 360 °, drives under the plate 22 so that it encases it and the sleeve shape 35 is produced. After a complete rotation of the cylinder 28, the retaining strips 26, 27 face each other until the plate edges to be connected come into contact.
  • the second strip 26 together with the plate edge fixed to it can be positioned on the cylinder 28 by means of the lifting elements 24 of the holder 20 and the connection of the plate edges or the welding process can take place.
  • this cylinder 28 It is advantageous to also equip this cylinder 28 with a flattened shoulder 36 for positioning the plate edges.
  • FIGS. 5 and 6 show a further variant of a device according to the invention.
  • a lever element 45 which is rotatable about an axis 43 and can be moved transversely along a sliding guide 44 Retaining bar 42 is provided.
  • the two strips 41, 42 are spaced apart from one another in accordance with the length of the plate 40 to be processed (FIG. 6).
  • the plate 40 can be fixed in register on the strips 41, 42 by the already described pin register 48 of the strips 41, 42 and the fitting hole system of the plate 40.
  • the lever element 45 is now rotated and at the same time shifted transversely in the direction of the fixed bar 41.
  • the lever element 45 passes underneath the fixed bar 41 and the bar 42 sitting on it faces the fixed 41 after a full rotation, so that the plate edges are in contact and can be connected or welded.
  • Fig. 6 is also intended to indicate the course of movement of the plate edge rotated by 360 °.
  • the drive of the axis 43 of the lever element 45 can take place in an analogous manner by means of a drive, drive pinion and rack as in the cylinder 28 of the second exemplary embodiment.
  • the particular advantage of this variant is that the pressure surface side of the plate 40 hardly needs to be touched in the case of the sleeve shaping, since the strips 41, 42 hold the plate edges from the inside of the sleeve 46 (FIG. 5).
  • the retaining strips are designed as suction strips with integrated vacuum suction cups 47 (FIG. 5) distributed over the entire length and spaced a short distance apart, for holding the plate edges, since aluminum plates pretreated in offset printing are the most frequently used printing form.
  • the retaining strips can be designed as electrical magnetic holding strips for non-positive connection with the plate edges.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Claims (15)

  1. Dispositif pour fabriquer un manchon (17,35, 46), notamment une forme d'impression en forme de manchon, comportant une surface circonférentielle d'un seul tenant constituée par une plaque (9,22,40) possédant un système de trous d'ajustage, caractérisé en ce que pour les deux bords de la plaque, qui doivent être réunis, il est prévu respectivement une barrette de fixation (5,6;26,27;41,42), qui peut être amenée dans une position initiale et peut être montée le long du bord respectif de la plaque (9,22, 40), que les barrettes de fixation (5,6;26,27;41,42) possèdent un registre à tiges (10,23,48) qui est conçu de telle sorte que les tiges peuvent coopérer avec le système de trous d'ajustage de la plaque (9,22,40), qu'à au moins l'une des barrettes de fixation (26,27,42) sont associés des moyens (11,28,45) pour produire une rotation autour d'un axe parallèle à l'axe longitudinal de la barrette et que sous l'effet de cette rotation, les barrettes de fixation (5,6;26,27;41,42) peuvent être disposées réciproquement en vis-à-vis de telle sorte que, lors de la formation d'un manchon (17,35,46), les bords de la plaque, qui doivent être réunis et sont fixés aux barrettes (5,6; 26,27;41,42), viennent en contact et peuvent être réunis.
  2. Dispositif selon la revendication 1, caractérisé en ce que les barrettes de fixation (5,6) peuvent être fixées, en étant distantes les unes des autres dans la position initiale, approximativement dans un plan, sur des supports (1,2) pouvant être positionnés en fonction de la taille de la plaque, qu'au-dessous des barrettes est prévue une table coulissante (8) sur laquelle peut être insérée la plaque (9) devant être formée, que les deux barrettes de fixation (5,6) peuvent être abaissées sur la plaque (9) au moyen d'éléments de levage (4) situés sur les supports (1,2), et que les bords, devant être réunis, de la plaque peuvent être fixés, en étant alignés correctement au moyen du registre à tiges (10) et du système de trous d'ajustage, dans le cas d'un desserrage simultané à partir des supports (1,2), que l'une des barrettes de fixation (5) est déplaçable transversalement le long de la table coulissante (8) au moins sur la longueur de la plaque, que l'autre barrette de fixation (6) peut être positionnée, conjointement avec le bord de la plaque, qui est fixé sur cette barrette, sur un cylindre monté rotatif (11), de sorte que, lors d'une rotation complète du cylindre (11), la plaque (9) enveloppe ce cylindre et que les barrettes de fixation (5,6) servant à relier les bords de la plaque sont situées en vis-à-vis (figure 1) et que la seconde barrette (5) peut être positionnée, conjointement avec le bord de la plaque, qui est fixé à cette barrette, dans cette position sur le cylindre (11), à l'aide d'un troisième support (3).
  3. Dispositif selon la revendication 2, caractérisé en ce que la barrette de fixation (5), qui doit être déplacée par-dessus la table coulissante (8) est agencée sous la forme d'un chariot, que ce chariot peut être tiré au moyen d'une chaîne de transport sans fin (14), qui circule sur des galets de renvoi (15), dans un guide de glissement le long de la table (8) et peut être amené à nouveau dans sa position initiale (figure 1).
  4. Dispositif selon la revendication 2, caractérisé en ce que, dans le cas du cylindre (11), un diamètre modifiable au moyen d'une coulisse (16) est réglable.
  5. Dispositif selon les revendications 2 et 3, caractérisé en ce que le guide de chaîne de transport sans fin circule sur le cylindre (11) et conserve par rapport à ce dernier une distance égale au moins à la longueur des tiges (10).
  6. Dispositif selon les revendications 2 à 4, caractérisé en ce que la barrette de fixation (5) est supportée élastiquement des deux côtés dans des glissières.
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le cylindre (11) est monté d'une manière excentrique par rapport à son dispositif d'entraînement (19).
  8. Dispositif selon la revendication 1, caractérisé en ce que les barrettes de fixation (26,27) peuvent être fixées à distance l'une de l'autre, dans la position initiale, approximativement dans un plan horizontal, sur des supports (20,21) pouvant être positionnés en fonction de la taille de la plaque, que les bords de la plaque, qui doivent être réunis, sont serrés sur les barrettes fixées (26,27), d'une manière alignée correctement au moyen du registre à tiges (23) et du système de trous d'ajustage, que l'une des barrettes (26) peut être positionnée au moyen d'éléments de levage (25) sur son support (21), conjointement avec le bord de la plaque, qui est serré sur ce support, sur un cylindre monté rotatif (28), moyennant un desserrage simultané du support (21), tandis que l'autre barrette (26) subsiste, conjointement avec le bord de la plaque, qui est serré contre elle, sur son support (20), que le cylindre (28) est déplaçable au-dessous du et parallèlement au plan, dans lequel les barrettes (26,27) sont disposées dans la position initiale de sorte que, lors d'une rotation complète du cylindre (28), ce dernier passe au-dessous de la plaque (22), qui entoure le cylindre, les barrettes de fixation (26,27) servant à réunir les bords de la plaque sont disposées en vis-à-vis (figure 3), le cylindre (28) étant dans cette position, la seconde barrette (26) peut être positionnée, conjointement avec le bord de la plaque, qui est fixé à cette barrette, sur le cylindre (28).
  9. Dispositif selon la revendication 8, caractérisé en ce que le cylindre (28) possède une circonférence d'une longueur légèrement inférieure à la longueur respective de la plaque à traiter (22).
  10. Dispositif selon les revendications 8 et 9, caractérisé en ce que le signal (28) peut être déplacé au moyen d'un pignon d'entraînement (30) et d'une crémaillère (32), tout en tournant simultanément.
  11. Dispositif selon les revendications 8 à 10, caractérisé en ce que le cylindre (28) est monté d'une manière excentrique par rapport à son dispositif d'entraînement (31).
  12. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les cylindres (11,28) possèdent un épaulement aplati (18,36) pour le positionnement des bords de la plaque.
  13. Dispositif selon la revendication 1, caractérisé en ce que pour les bords, devant être réunis, de la plaque, il est prévu une barrette de fixation (40) montée fixe et une barrette de fixation (42) qui prend appui sur un élément de levier (45) monté de manière à être rotatif et déplaçable transversalement, et les bords de la plaque peuvent être positionnés sur les barrettes (41,42) de telle sorte que, lors d'une rotation complète et d'une translation transversale simultanée (figure 6) de l'élément de levier (45) en direction de la barrette fixe (42), les barrettes (41,42) sont situées en vis-à-vis tout en formant un manchon (46) servant à relier les bords de la plaque, les barrettes (41,42) retenant de façon fixe les bords de la plaque à partir de l'intérieur du manchon (46) (figure 5).
  14. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les barrettes de fixation (5,6;26,27;41,42) sont agencées sous la forme de barrettes d'aspiration dans lesquelles sont intégrés des dispositifs intégrés d'aspiration à dépression (47), qui sont répartis à une faible distance sur toute sa longueur.
  15. Dispositif selon l'une des revendications précédentes, caractérisé en ce que dans le cas de l'utilisation de plaques aimantables, les barrettes de fixation (5,6;26,27;41,42) sont réalisées sous la forme de barrettes à aimants adhérents pour la liaison de force avec les bords de la plaque.
EP94105131A 1993-04-03 1994-03-31 Dispositif pour fabriquer un manchon, en particulier une plaque d'impression en forme de manchon à surface continue Expired - Lifetime EP0619185B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4311078A DE4311078C1 (de) 1993-04-03 1993-04-03 Vorrichtung zur Erzeugung einer Hülse, insbesondere einer hülsenförmigen Druckform, mit zusammenhängender Umfangsfläche
DE4311078 1993-04-03

Publications (2)

Publication Number Publication Date
EP0619185A1 EP0619185A1 (fr) 1994-10-12
EP0619185B1 true EP0619185B1 (fr) 1995-11-22

Family

ID=6484727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105131A Expired - Lifetime EP0619185B1 (fr) 1993-04-03 1994-03-31 Dispositif pour fabriquer un manchon, en particulier une plaque d'impression en forme de manchon à surface continue

Country Status (5)

Country Link
US (1) US5557960A (fr)
EP (1) EP0619185B1 (fr)
JP (1) JPH0775744B2 (fr)
CA (1) CA2121922C (fr)
DE (2) DE4311078C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432814A1 (de) 1994-09-15 1996-03-28 Roland Man Druckmasch Trägerhülse für Druck- und Übertragungsformen
US5699740A (en) * 1996-06-17 1997-12-23 Creo Products Inc. Method of loading metal printing plates on a vacuum drum
DE19710901C1 (de) * 1997-03-15 1998-08-13 Roland Man Druckmasch Vorrichtung zur Erzeugung einer hülsenförmigen Druckform
DE10049283A1 (de) * 2000-10-05 2002-04-11 Hueck Folien Gmbh & Co Kg Verfahren und Vorrichtung zur Herstellung einer zylindrischen Prägeform
DE10116609A1 (de) 2001-04-03 2002-11-07 Roland Man Druckmasch Vorrichtung zur Erzeugung einer hülsenförmigen Druckform
DE10260445A1 (de) * 2002-12-21 2004-07-08 Man Roland Druckmaschinen Ag Vorrichtung zur Erzeugung einer hülsenförmigen Druckform
DE102004051041B3 (de) 2004-10-20 2006-03-02 Windmöller & Hölscher Kg Druckplattenzylinder

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958361A (en) * 1957-03-01 1960-11-01 Porter Co Inc H K Apparatus for stretch bending metal strip material
US3773594A (en) * 1972-05-05 1973-11-20 Midland Ross Corp Machinery and process for assembling a printing machine belt
US3937052A (en) * 1975-01-29 1976-02-10 Mosstype Corporation Machine for rolling and curving printing plates
JPS5874357A (ja) * 1981-10-30 1983-05-04 Dainippon Printing Co Ltd グラビア印刷版の製造方法
US4674165A (en) * 1983-06-09 1987-06-23 Spaeth Walter Method for manufacturing rounded parts, such as motor vehicle consisting of wheel rims
AT378701B (de) * 1983-10-04 1985-09-25 Haemmerle Ag Einrichtung zur handhabung von blechtafeln
GB2179890A (en) * 1985-08-29 1987-03-18 Wilson Engraving Inc Pin register system in production of printing plates
JPS63171227A (ja) * 1987-01-09 1988-07-15 Honda Motor Co Ltd トランスフアプレスマシンにおけるハンドリングバ−の搬出方法及びその装置
US4922742A (en) * 1988-11-03 1990-05-08 Westinghouse Electric Corp. Apparatus for precision forming of sheet metal parts
DE4140768C2 (de) * 1991-12-11 1994-08-18 Roland Man Druckmasch Offset-Druckform

Also Published As

Publication number Publication date
EP0619185A1 (fr) 1994-10-12
JPH0775744B2 (ja) 1995-08-16
CA2121922A1 (fr) 1994-10-04
US5557960A (en) 1996-09-24
CA2121922C (fr) 2000-09-26
DE59400048D1 (de) 1996-01-04
JPH0716679A (ja) 1995-01-20
DE4311078C1 (de) 1994-05-26

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