EP1900525A2 - Dispositif destiné au montage d'une plaque d'impression sur un cylindre porte-plaque d'une machine d'impression - Google Patents

Dispositif destiné au montage d'une plaque d'impression sur un cylindre porte-plaque d'une machine d'impression Download PDF

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Publication number
EP1900525A2
EP1900525A2 EP07110036A EP07110036A EP1900525A2 EP 1900525 A2 EP1900525 A2 EP 1900525A2 EP 07110036 A EP07110036 A EP 07110036A EP 07110036 A EP07110036 A EP 07110036A EP 1900525 A2 EP1900525 A2 EP 1900525A2
Authority
EP
European Patent Office
Prior art keywords
printing
cylinder
forme
printing plate
plate
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.)
Withdrawn
Application number
EP07110036A
Other languages
German (de)
English (en)
Inventor
Wolfgang Zink
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
Original Assignee
Koenig and Bauer 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
Priority claimed from DE2002138106 external-priority patent/DE10238106A1/de
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Priority claimed from EP03790680A external-priority patent/EP1530514B1/fr
Publication of EP1900525A2 publication Critical patent/EP1900525A2/fr
Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/60—Devices for transferring printing plates

Definitions

  • the EP 1 084 837 A1 describes a device for holding and conveying a printing forme.
  • the device has translational conveying devices which convey a printing forme to be mounted on a forme cylinder or a printing forme to be removed from a forme cylinder. While the device is tilted from a rest position to its operating position for changing a printing form about an axis of rotation, a hook pivots only due to its own weight in the space in which the printing plate is mounted and secures the printing forme at its trailing beveled end against accidental falling out this room.
  • the invention has for its object to provide a device for mounting a printing forme on a forme cylinder of a printing press, wherein the printing forme form cylinder with structurally simple means can be fed.
  • the back of the support surface 02 is a work surface which, in the case where the elevator 01 is formed as a printing forme 01, is provided with a printed image or at least can be provided with a printed image.
  • the elevator 01 has two opposite ends 03; 04 preferably each with angled Einhotbringeln 13; 14, wherein the ends 03; 04 limit the bearing surface 02 and wherein the suspension legs 13; 14 each preferably extend entirely or at least partially across the width B of the elevator 01.
  • the support surface 02 of the elevator 01 is flexible at least along the length L and at a mounting of the elevator 01 on a lateral surface 07 of a cylinder 06 a Printing machine of the curvature of the cylinder 06 adaptable (Fig. 2).
  • the length L of the support surface 02 thus extends in the direction of the circumference of the cylinder 06, whereas the width B of the support surface 02 extends in the axial direction of the cylinder 06.
  • the measure of the width B varies within certain, predetermined tolerance limits, since the original width B of the elevator 01 is reduced by a trimming on at least one of the longitudinal sides of the elevator 01 in order, for. B. to adjust the position of a printed image on the work surface of the elevator 01 to a certain distance to at least one of the longitudinal sides of the elevator 01.
  • the tolerance limits are z. B. in the range of fractions of a millimeter to a few millimeters.
  • the width B of one elevator 01 may differ from other similar lifts 01 used on the same cylinder 06 within the allowable tolerance limits.
  • the opening angle ⁇ 1; ⁇ 1 usually lie between 30 ° and 140 °.
  • the opening angle ⁇ 1 is assigned to the leading end 03 of the elevator 01, it is preferably executed at an acute angle, in particular it is 45 °.
  • the opening angle ⁇ 1 at the trailing end 04 of the elevator 01 is often preferably greater than 80 ° or obtuse-angled, in particular it is 85 ° or 135 °.
  • the folded suspension leg 13 at the leading end 03 of the elevator 01 is thus at this front edge 16 of the opening 09 preferably positively suspended, because the opening angle ⁇ 1 at the leading end 03 of the elevator 01 is preferably adapted to the opening angle ⁇ 2. In the same way, it behaves at the trailing end 04 of the elevator 01.
  • an opening angle ⁇ 2 which is either between 80 ° and 95 °, preferably 90 °, or between 120 ° and 150 °, preferably 135 °.
  • the bent suspension leg 14 at the trailing end 04 of the elevator 01 is thus preferably positively clamped at this rear edge 17 of the opening 09, because the opening angle ⁇ 1 at the trailing end 04 of the elevator 01 is at least approximately adapted to the opening angle ⁇ 2.
  • the holding means 21 In the channel 08 are z. B. at least one preferably pivotally mounted holding means 21 and a preferably biased spring element 22 is arranged, wherein the spring element 22, the holding means 21 z. B. presses against the folded suspension leg 14 at the trailing end 04, which is hooked to the opening 09 at its rear edge 17, whereby the suspension leg 14 held at the trailing end 04 at the extending from the rear edge 17 to the channel 08 toward wall 19 becomes.
  • an adjusting means 23 is provided in the channel 08, which pivots the holding means 21 against the force of the spring element 22 during its actuation.
  • the holding device therefore consists essentially of the holding means 21, the spring element 22 and the adjusting means 23rd
  • the elevator 01 is fed with its trailing end 04 from a fixed to the cylinder 06 spatial direction.
  • the elevator 01 is therefore stabilized during the assembly process by the contact line 27 of its attached to the leading end 03 Einpatinlegeels 13 with the lateral surface 07 of the cylinder 06 and by its support on the edge 26 of the support member 24 and by a positional fixation 28 of the trailing end 04.
  • the support member 24 may, for. B. be a rolling element 24, the z. B. to the cylinder 06 is adjustable. In this case, the support element 24 is preferably arranged close to the cylinder 06.
  • FIG. 6 or 9 another rolling element 47 or 62 (FIG. 6 or 9) may be provided, which will be discussed later, wherein the supporting element 24 may then be arranged elsewhere and not adjacently to the cylinder 06 needs to be.
  • the task of Support element 24 can then z. B. to generate in the elevator 01 a bending stress.
  • the leading end 03 of the elevator 01 can also be brought so against the cylinder 06, that this end 03 after its contact with the lateral surface 07 of the cylinder 06 at an acute angle ⁇ with an imaginary, in a contact point 29 on the lateral surface 07 of the Cylinder 06 lying second tangent T2 of the lateral surface 07 of the cylinder 06 turns away (representation of the elevator 01 in Fig. 4 with a solid line).
  • the thus performed bending of the leading end 03 of the elevator 01 should, however, only be so strong that the suspension leg 13 attached there still rests securely against the lateral surface 07 of the cylinder 06.
  • the support member 24 are employed on the elevator 01, whereby the elevator 01 is held with its leading end 03 close to the lateral surface 07 of the cylinder 06.
  • FIG. 5 An apparatus for carrying out the aforementioned method will now be described by way of example an commercial web offset printing machine with z. B. a standing rubber-against-rubber printing in 4-cylinder design with horizontal guidance of a printing material 46, preferably a paper web 46 are explained (Fig. 5).
  • z. B five or six pressure points for different inks provided.
  • at least the forme cylinders 31; 33 are the same in their dimensions and in their construction.
  • the forme cylinder 31 can be assigned a printing forme 36 and the forme cylinder 33 for a printing forme 37, the printing forme 36; 37 z. B. a circumference of the forme cylinder 31; 33 corresponding length L and one of the length of the respective bale of the forme cylinder 31; 33 corresponding width B have.
  • At the leading end 03 of the printing plate 36; 37 is the opening angle ⁇ 1 between the folded suspension legs 13 and the extended length L of the printing plate 36; 37 preferably 45 °.
  • a change of one or more printing plates 36; 37 can be made remotely controlled by running paper web 46 from one of the printing press associated control station.
  • one of a certain ink, z. B. black associated printing form 36; 37 interchangeable without having to stop the printing process as a whole.
  • magazines 38; 39 are the shafts 41; 43 and 42, respectively; 44 for receiving a used or new printing plate 36; 37 each advantageously arranged parallel to each other, ie they are usually stacked on top of each other. It can be z.
  • the shafts 41; 43 and 42, respectively; 44 are preferably in a housing, wherein the housing has an opening o38; o39, parallel to the bale of the respective forme cylinder 31; 33 alignable and by a printing plate 36; 37, the forme cylinder 31; 33 can be fed or from this into the slot 41; 43 is insertable.
  • the openings o38; o39 the printing form magazines 38; 39 with respect to the respective opening 09 in the form of cylinders 31; 33 at a much smaller distance a38; a39 to the forme cylinder 31; 33 introduced as the length L of the printing plates 36; 37 is.
  • a movably arranged printing form magazine 38; 39 is in its working position in front of a forme cylinder 31; 33 at its distance a38; a39 and its orientation to the forme cylinder 31; 33 fixed by a lock 83 (FIG. 5).
  • the lock 83 may, for. B. done by a taper bolt 83, the z. B. with respect to the forme cylinder 31; 33 is stationary and in an opening in the housing of the printing forme magazine 38; 39 engages and a to the forme cylinder 31; 33 z. B. pivoted-up printing plate magazine 38; 39 with its openings o38; o39 with respect to the bale of the forme cylinder 31; 33 centered.
  • the taper bolt 83 is preferably designed such that during its engagement in the housing of the printing forme magazine 38; 39 does not occur a self-locking effect, but its bevel only for positioning the printing forme magazine 38; 39 is used. It is advantageous, the forme cylinder 31; 33 page register moderate in a predefined position relative to the printing plate magazine 38; 39 to bring him to z. B. with respect to the page register to zero, before there is an exchange of a printing plate 36; 37 between the forme cylinder 31; 33 and the printing form magazine 38; 39 is coming.
  • the second, above the paper web 46 arranged, which can be arranged on the forme cylinder 33 printing forme magazine 39 two parallel superimposed shafts 42; 44, namely, a lower shaft 42 for receiving a printing plate 37 to be removed and an upper shaft 44 for providing a new printing plate 37.
  • Both shafts 42; 44 are spaced only slightly from each other in the printing forme magazine 39.
  • the printing plate 37 which is located in the one slot 42, from a located in the other slot 44 printing plate 37 of the same printing forme magazine 39 z. B. 30 to 40 mm apart, preferably less, whereby a very flat construction of the printing forme magazine 39 is achieved, which is very advantageous.
  • the holding element 48 is latched at the trailing end 04 of the printing plate 37 with the impact on the stop 52.
  • the holding element 48 may, for. B. wedge-shaped and directed with the wedge tip to the opening of the shaft 42, so that the trailing end 04 of the printing plate 37 during the conveying movement through the forme cylinder 33, the holding member 48 against a force acting on the printing plate 37 force, z. B. the weight of the support member 48 or standing with the holding member 48 in operative connection spring force, first raises until the folded suspension leg 14 engages the trailing end 04 behind the support member 48, after which the support member 48 lowers back to its original position.
  • the printing forme 37 to be mounted is preferably inserted into the upper shaft 44 of the printing forme magazine 39 by a side which is easily accessible during the printing process. Thereafter, the assembly of the new printing plate 37 on the forme cylinder 33, which must be free for this printing plate 37, that is unoccupied, from one of the printing machine associated electrical control, preferably a control station can be set in motion.
  • a control station Preferably triggered by a remote control signal from the control station, a second, the upper shaft 44 for providing the new printing plate 37 associated conveyor 54 is set in motion to advance the new printing plate 37 from the shaft 44 of the printing forme magazine 39 in the direction of the forme cylinder 33 (Fig. 7).
  • the second conveyor 54 may, for. B.
  • the forme cylinder 33 is rotated to such an extent that the folded-in leg 03 of the printing forme 37 can be set up in the production direction P of the forme cylinder 33 at a distance a09 behind the rear edge 16 of the opening 09 on the lateral surface of the forme cylinder 33 , wherein the distance a09 is less than a curve piece of the length of a quarter, in particular one-eighth of the circumference of the cylinder 06.
  • the distance a09 is significantly smaller than the length of the circumference of the rolling element 62.
  • a preferred embodiment provides that the am leading end 03 folded support legs 13 of the printing forme 37 is placed at a distance a09 of 5 mm to 10 mm behind the opening 09.
  • the friction body 71; 72 and their abutments 73; 74 are in the shafts 43; 44 preferably perpendicular to the conveying direction of the printing plates 36; 37 arranged so that they by their on the printing plates 36; 37 applied contact pressure the respective printing plate 36; 37 as with jaws hold in a defined manner, while the respective printing forme 36; 37 from the rotating form cylinder 31; 33 on the respective form cylinder 31; 33 is raised. Due to the fact that the new printing forme 36; 37 against the friction body 71; 72 and abutment 73; 74 applied contact pressure on the respective forme cylinder 31; 33 is wound, is the printing plate 36; 37 tightened on the forme cylinder 31; 33 on.
  • the friction body 71; 72 a friction surface 76; 77, which is preferably smooth and of lower hardness than the surface of the printing plates 36; 37, the friction surface 76; 77 faces.
  • the friction bodies 71; 72 of a reversibly deformable hollow body, for. B. from a with a pressure medium, z. B. compressed air hose, wherein the hose made of an elastomer material, for. B.
  • the preferably formed as a hollow body friction body 71; 72 with the pressure medium enlarge the hollow body their volume and practice on an adjacent printing plate 36; 37 a surface pressure, wherein the printing forme 36; 37 back of one of the preferably made of plastic abutment 73; 74 is supported.
  • the intensity of the surface pressure is preferably controllable by the pressure medium. Since the elastomeric material of the friction body 71; 72 and the plastic of the abutment 73; 74 have a lower hardness than the preferably made of a metallic material, in particular of an aluminum alloy printing plates 36; 37, damage to the printing plates 36; 37 is not to be feared when the printing plates 36; 37 at existing surface pressure from the shaft 43; 44 are pulled.

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  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP07110036A 2002-08-21 2003-08-06 Dispositif destiné au montage d'une plaque d'impression sur un cylindre porte-plaque d'une machine d'impression Withdrawn EP1900525A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002138106 DE10238106A1 (de) 2002-08-21 2002-08-21 Verfahren und Vorrichtung zum Montieren eines Aufzugs auf einen Zylinder einer Druckmaschine
EP03790680A EP1530514B1 (fr) 2002-08-21 2003-08-06 Procede permettant de monter un habillage sur le cylindre d'une machine a imprimer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP03790680A Division EP1530514B1 (fr) 2002-08-21 2003-08-06 Procede permettant de monter un habillage sur le cylindre d'une machine a imprimer

Publications (1)

Publication Number Publication Date
EP1900525A2 true EP1900525A2 (fr) 2008-03-19

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ID=39079547

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07110036A Withdrawn EP1900525A2 (fr) 2002-08-21 2003-08-06 Dispositif destiné au montage d'une plaque d'impression sur un cylindre porte-plaque d'une machine d'impression
EP07109982A Withdrawn EP1900524A2 (fr) 2002-08-21 2003-08-06 Procédé destiné au montage d'une plaque d'impression sur un cylindre porte-plaque d'une machine d'impression

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07109982A Withdrawn EP1900524A2 (fr) 2002-08-21 2003-08-06 Procédé destiné au montage d'une plaque d'impression sur un cylindre porte-plaque d'une machine d'impression

Country Status (1)

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EP (2) EP1900525A2 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3940795A1 (de) 1989-12-09 1991-06-13 Koenig & Bauer Ag Verfahren und einrichtung zum automatischen zufuehren bzw. abfuehren einer druckplatte
DE3940796A1 (de) 1989-12-09 1991-06-13 Koenig & Bauer Ag Verfahren und einrichtung zum automatischen wechseln einer druckplatte
EP0678382A1 (fr) 1994-04-18 1995-10-25 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour remplacer la plaque d'impression pour des machines d'impression rotatives
EP0678383A1 (fr) 1994-04-18 1995-10-25 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour échanger les plaques d'impression dans des machines d'impression rotatives
EP0734859A1 (fr) 1995-03-31 1996-10-02 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour changer des plaques d'impression
EP0734860A1 (fr) 1995-03-31 1996-10-02 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour changer des plaques d'impression
DE19934271A1 (de) 1998-11-13 2000-05-25 Heidelberger Druckmasch Ag Verschwenkbare Druckformwechseleinrichtung
EP1084837A1 (fr) 1999-09-17 2001-03-21 Komori Corporation Dispositif pour le serrage d'une plaque d'impression

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3940795A1 (de) 1989-12-09 1991-06-13 Koenig & Bauer Ag Verfahren und einrichtung zum automatischen zufuehren bzw. abfuehren einer druckplatte
DE3940796A1 (de) 1989-12-09 1991-06-13 Koenig & Bauer Ag Verfahren und einrichtung zum automatischen wechseln einer druckplatte
EP0678382A1 (fr) 1994-04-18 1995-10-25 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour remplacer la plaque d'impression pour des machines d'impression rotatives
EP0678383A1 (fr) 1994-04-18 1995-10-25 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour échanger les plaques d'impression dans des machines d'impression rotatives
EP0734859A1 (fr) 1995-03-31 1996-10-02 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour changer des plaques d'impression
EP0734860A1 (fr) 1995-03-31 1996-10-02 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour changer des plaques d'impression
DE19934271A1 (de) 1998-11-13 2000-05-25 Heidelberger Druckmasch Ag Verschwenkbare Druckformwechseleinrichtung
EP1084837A1 (fr) 1999-09-17 2001-03-21 Komori Corporation Dispositif pour le serrage d'une plaque d'impression

Also Published As

Publication number Publication date
EP1900524A2 (fr) 2008-03-19

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