EP0578161B1 - Elément d'impression pour rotative d'impression avec plusieurs chariots porte-cylindre - Google Patents

Elément d'impression pour rotative d'impression avec plusieurs chariots porte-cylindre Download PDF

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Publication number
EP0578161B1
EP0578161B1 EP93110692A EP93110692A EP0578161B1 EP 0578161 B1 EP0578161 B1 EP 0578161B1 EP 93110692 A EP93110692 A EP 93110692A EP 93110692 A EP93110692 A EP 93110692A EP 0578161 B1 EP0578161 B1 EP 0578161B1
Authority
EP
European Patent Office
Prior art keywords
printing
carriage
printing element
cylinder
slide
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
EP93110692A
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German (de)
English (en)
Other versions
EP0578161A1 (fr
Inventor
Mario Forno
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.)
Officine Meccaniche Giovanni Cerutti SpA
Original Assignee
Officine Meccaniche Giovanni Cerutti SpA
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 Officine Meccaniche Giovanni Cerutti SpA filed Critical Officine Meccaniche Giovanni Cerutti SpA
Publication of EP0578161A1 publication Critical patent/EP0578161A1/fr
Application granted granted Critical
Publication of EP0578161B1 publication Critical patent/EP0578161B1/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
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/18—Auxiliary devices for exchanging forme cylinders

Definitions

  • the above invention relates to a printing element for a rotary printing press which is equipped with a plurality of carriages, each carriage accommodating a printing cylinder.
  • a printing element for a rotary printing press which is equipped with a plurality of carriages, each carriage accommodating a printing cylinder.
  • Such a device is described for example in the document FR-A-2637222.
  • this object is achieved by a pressure element which receives a plurality of printing cylinder receiving carriages in the working position and is characterized in that the pressure roller, with which the paper web is pressed against a printing cylinder which is rotating, is received at each end by a movable carriage which, in its position is adjustable in a vertical plane and that each carriage is received by a carriage which is adjustable in its position along horizontal guide rails which are connected to the side parts of the pressure element.
  • the second pressure cylinder carriage for the prepares the following printing process in such a way that the second printing cylinder is already set in rotary motion in order to achieve the rotary speed necessary for future production.
  • the ink application device is processed and the doctor device is adjusted.
  • the pressing roller which can be moved in a vertical plane, is lifted, and at the same time the carriage moves horizontally, which picks up the pressing roller until it is above it Printing cylinder of the second carriage is located. This is followed by a carriage travel in order to press the paper web again against the second printing cylinder which is available for the new printing process by the pressure roller.
  • the first receiving carriage of the printing cylinder which is no longer in use, can be moved out of the printing element and replaced by a third receiving carriage for a printing cylinder, which is already equipped for printing a subsequent edition.
  • the pressure element which is identified overall by 1, has a recess 2 in the lower part which accommodates trolleys 4 and 5, which are equipped with rollers 6 and 7, using precision guides.
  • Each carriage is equipped with a printing cylinder 8 or 9, as well as with an ink application device 10 or 11 and a doctor device 12 or 13.
  • parallel guide rails are provided on both side parts of the pressure element 1, above the recess 2 for receiving the carriages 4 and 5 of the pressure cylinders 8, 9, which are identified overall by 30.
  • the guide rails 30 are arranged horizontally and receive a movable carriage 31 which is operatively connected to a precision drive spindle 32, advantageously a ball screw, in order to enable the carriage 31 to be moved and positioned with high accuracy.
  • the spindle 32 is driven by a motor 33, advantageously a controllable direct current motor.
  • the carriage 31 could also be moved with the aid of one or more piston-cylinder units, which for this purpose are operatively connected to the movable carriage and the frame of the machine. In this case, the exact position of the carriage 31 is accomplished with the aid of stops, stops which are advantageously adjustable in their position.
  • a dancer roll 1 is also provided, which is pivotally mounted in order to compensate for the train on which the paper web 39 is set during the movement of the carriage 31 along the guide rails 30.
  • Each carriage 31 has vertically arranged slide rails 34 and 35, which form precise parallel guides for a carriage 36 which receives a pressure roller 40 and rollers 37 and 38 for guiding the paper web 39.
  • the paper web 39 is pressed in a known manner against the assigned printing cylinder or 9.
  • the upper part of the carriage 31 receives a drive motor 41, advantageously a controllable motor which drives a threaded spindle 43 via an angular drive 42, which is operatively connected to the body of the carriage 36.
  • a drive motor 41 advantageously a controllable motor which drives a threaded spindle 43 via an angular drive 42, which is operatively connected to the body of the carriage 36.
  • the threaded spindle 43 is connected, with the interposition of a connecting piece 44, to a piston-cylinder unit 45, by means of which the slide 36 can be quickly set into a lifting or lowering movement.
  • Each side part of the pressure element designated 1 is advantageously connected to a horizontally arranged bar 46 on which stop means 47 and 48 or electrical limit switches are arranged, which serve as stops to determine the working position of the slide 31 and its movement stroke in the horizontal direction.
  • stop means 47 and 48 or electrical limit switches are arranged, which serve as stops to determine the working position of the slide 31 and its movement stroke in the horizontal direction.
  • FIG. 1 While in FIG. 1 the opening 2 of the printing element 1 is occupied by two cylinder receiving carriages 4 and 5, it can be seen from FIG. 3 that the opening 2 of the printing element is occupied only by a second printing cylinder receiving carriage 4; the first impression cylinder carriage 5 has already been extended.
  • the pressure roller 40 presses the paper web 39 onto the printing cylinder 8, and a new printing cylinder receiving carriage can be inserted into the free space 2, which carriage has already been prepared for the subsequent printing process outside the printing element 1.
  • FIG. 4 shows the device according to the invention with its essential components in longitudinal section along the line IV-IV of FIG. 2.
  • a side part of the pressure element 1 can be seen.
  • the movable slide 31 is arranged inside the pressure element 1 and can be moved along the parallel guides 30 with the aid of the spindle 32.
  • the carriage receives a controllable motor 41, which rotates the shaft 43 via an angular drive 42.
  • a lengthening rod 49 branches off from the angular drive 42 and is suitable for also driving a spindle 43 which is arranged on the second side part (not shown) of the pressure element 1.
  • the threaded spindle 43 is operatively connected by a connecting piece 44 to a piston-cylinder unit 45, and this is connected to a support 36, which is slidably arranged in the vertical direction between two parallel guide strips 34, 35.
  • the carriage 36 receives rotatably mounted rollers 37, 38 which serve to guide the paper web 39, the paper web being pressed by the pressure roller 40 against one of the two pressure cylinders 8 and 9 which are used for production.
  • the operation of the device according to the invention is as follows: When carriage 4 and 5 retracted into a pressure element 1 for receiving the pressure cylinders 8 and 9, the pressure roller is located, for example, above the first cylinder 9, which at this moment represents the working cylinder.
  • the pressure roller 40 presses the paper web 39 in motion against the printing cylinder 9.
  • the printing cylinder 8 represents a replacement cylinder which is in the waiting position and has been prepared for a subsequent printing operation.
  • the piston-cylinder unit 45 is actuated and the pressure roller 40 is raised from the printing cylinder 9 underneath, as a result of which the paper web 39 in motion is lifted off the printing cylinder 9.
  • the paper web continues its movement and, by actuating the motor 41 and by using the angular drive 42 and the drive spindle 43, the carriage is raised with the pressure roller 40, which is moved into a position 40 'in which it becomes possible to move the carriage 31 quickly along the guides 30 by actuating the ball screw 32 via the motor 33. This is until the pressure roller 40 is exactly above the second printing cylinder 8, which has in the meantime been raised to the nominal speed and the inking unit has already been prepared for the following printing process.
  • the squeegee device of the cylinder was already set and the cylinder 8 has already been rotated. In this position, which is determined by the associated end stop 48, as shown in FIG. 1, the carriage 36 and the pressure roller 40 are lowered again, which is brought into operative connection with the cylinder 8 or 8 'of the carriage 9 .
  • the printing process can be resumed after a very short time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (7)

  1. Elément d'impression (1) pour une rotative à imprimer, pour la réception de plusieurs chariots (4, 5) pour le logement de cylindres d'impression (8, 9) qui sont arrangés dans leur position de travail, le rouleau de pression (40) par lequel la bande de papier (39) est pressée contre un cylindre d'impression tournant (8, 9), étant reçu à chaque extrémité par un coulisseau déplaçable (36) et le coulisseau (36) est déplaçable, de façon ajustable, dans un plan vertical, caractérisé en ce que le coulisseau (36) est reçu par un chariot (31) qui est mobile sur des guidages horizontaux (30) et est ajustable en position et que les guidages (30) sont en liaison avec des parties latérales de l'élément d'impression (1).
  2. Elément d'impression pour une rotative à imprimer, selon la revendication 1, caractérisé en ce que chaque partie latérale de l'élément d'impression (1) est équipé de guidages parallèles horizontaux (30), qui reçoivent un chariot (31) qui est relié à une broche d'entraînement (32) susceptible d'être entraînée par l'intermédiaire d'un moteur pouvant être commandé (33).
  3. Elément d'impression pour une rotative à imprimer selon la revendication 1, caractérisé en ce que chaque chariot (31) est équipé de baguettes de guidage (34, 35) disposées verticalement, qui constituent un guidage de précision pour un coulisseau (36) qui reçoit des rouleaux ou galets (38, 39) pour un guidage de la bande de papier (39), et qu'entre les rouleaux de guidage (37, 38) est prévu un rouleau d'application ou de pression (40) qui applique la bande de papier (39) contre le cylindre d'impression (8, 9) mis en place pour le processus d'impression.
  4. Elément d'impression pour une rotative à imprimer selon la revendication 1, caractérisé en ce que le chariot (31) comprend un moteur d'entraînement (41) susceptible d'être commandé, qui agit sur une broche filetée (43) reliée opérativement au coulisseau (36).
  5. Elément d'impression pour une rotative à imprimer selon la revendication 1, caractérisé en ce que la broche d'entraînement (43) est reliée opérativement à une unité à vérin à piston (45), par l'intermédiaire d'une pièce de liaison rotative (44), qui est opérativement reliée au coulisseau (36).
  6. Elément d'impression pour une rotative à imprimer selon la revendication 1, caractérisé en ce que chaque partie latérale de l'élément d'impression (1) est pourvue d'une baguette (46) disposée horizontalement et qui comprend des butées (47, 48) réglables en position, qui servent de butées pour le coulisseau (36), pour déterminer la position de travail exacte du cylindre d'impression (40).
  7. Elément d'impression pour une rotative à imprimer selon la revendication 1, caractérisé en ce que la bande de papier (39) est guidée à l'entrée de l'élément d'impression (1) par un rouleau (100) et qu'au rouleau (100) est associé un rouleau oscillant (101) monté pivotant.
EP93110692A 1992-07-10 1993-07-05 Elément d'impression pour rotative d'impression avec plusieurs chariots porte-cylindre Expired - Lifetime EP0578161B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI921684A IT1255333B (it) 1992-07-10 1992-07-10 Elemento stampa per una macchina rotativa, munito di piu' carrelli supportanti un cilindro stampa
ITMI921684 1992-07-10

Publications (2)

Publication Number Publication Date
EP0578161A1 EP0578161A1 (fr) 1994-01-12
EP0578161B1 true EP0578161B1 (fr) 1996-03-06

Family

ID=11363652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110692A Expired - Lifetime EP0578161B1 (fr) 1992-07-10 1993-07-05 Elément d'impression pour rotative d'impression avec plusieurs chariots porte-cylindre

Country Status (5)

Country Link
US (1) US5347926A (fr)
EP (1) EP0578161B1 (fr)
JP (1) JPH06155705A (fr)
DE (1) DE59301772D1 (fr)
IT (1) IT1255333B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE507819C2 (sv) * 1994-02-09 1998-07-20 Tetra Laval Holdings & Finance Tryckverk för en rotationstryckpress med i en separat ram vertikalt och roterbart anordnade cylindrar
US5816152A (en) * 1997-09-02 1998-10-06 Delaware Capital Formation, Inc. Reconfigurable printing press
DE10008215B4 (de) * 2000-02-23 2013-03-28 Manroland Web Systems Gmbh Druckwerk für eine Rotationsdruckmaschine mit Kreuzschlitten
AU4604800A (en) * 2000-05-17 2001-11-26 Mag-Tech S.R.L. Automatic device for replacing printing cartridges in a gravure printing machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647613A (fr) * 1900-01-01
US2790384A (en) * 1953-05-14 1957-04-30 Druckmaschinenwerk Victoria Ve Making-ready machines
FR1596546A (fr) * 1968-08-02 1970-06-22
US3625145A (en) * 1969-06-05 1971-12-07 Bobst Champlain Inc Cylinder cart for exchanging cylinders on the fly
FR2527519A1 (fr) * 1982-05-25 1983-12-02 Chambon Machines Appareil d'impression offset a format variable
IT1204804B (it) * 1986-02-17 1989-03-10 Cerutti Spa Off Mec Unita' di stampa supplementare del tipo flessografiche
DE3733375A1 (de) * 1987-10-02 1989-04-13 Metronic Geraetebau Flexo-druckeinheit
JPH0215564A (ja) * 1988-07-01 1990-01-19 Nkk Corp 固体電解質型燃料電池の電極部材および固体電解質型燃料電池
IT1225200B (it) * 1988-10-05 1990-11-02 Schiavi Cesare Costr Mec Macchina rotativa rotocalco perfezionata

Also Published As

Publication number Publication date
US5347926A (en) 1994-09-20
JPH06155705A (ja) 1994-06-03
EP0578161A1 (fr) 1994-01-12
DE59301772D1 (de) 1996-04-11
ITMI921684A1 (it) 1994-01-10
IT1255333B (it) 1995-10-31
ITMI921684A0 (it) 1992-07-10

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