EP1732760B1 - Groupe d'impression de machine a imprimer, muni d'un rouleau presseur - Google Patents

Groupe d'impression de machine a imprimer, muni d'un rouleau presseur Download PDF

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Publication number
EP1732760B1
EP1732760B1 EP05715859A EP05715859A EP1732760B1 EP 1732760 B1 EP1732760 B1 EP 1732760B1 EP 05715859 A EP05715859 A EP 05715859A EP 05715859 A EP05715859 A EP 05715859A EP 1732760 B1 EP1732760 B1 EP 1732760B1
Authority
EP
European Patent Office
Prior art keywords
impression roller
shaft
printing unit
roller shaft
impression
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.)
Not-in-force
Application number
EP05715859A
Other languages
German (de)
English (en)
Other versions
EP1732760A1 (fr
Inventor
Herbert Lübke
Volker Schröder
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP1732760A1 publication Critical patent/EP1732760A1/fr
Application granted granted Critical
Publication of EP1732760B1 publication Critical patent/EP1732760B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • 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
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B41P2227/21—Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press

Definitions

  • the invention relates to a printing unit of a printing press with at least one impression roller according to the preamble of claim 1.
  • Such printing units are known. Such printing units are often designed so that the first end of a pressure roller can be exposed, so that a pressure roller sleeve can be pulled over this exposed end in the axial direction of the pressure roller mandrel. Subsequently, a new pressure roller sleeve, which carries for example a new print motif can be pushed over this end.
  • the patents DE 28 21 36 and US 1,329,325 show such printing works. In these patents, however, nothing is said about the handling of impression rollers.
  • Press rollers in printing units of printing machines, especially of gravure printing machines, are subject to wear and other influences and must therefore be interchangeable.
  • the impression rollers often consist of a stamping shaft on which a Presseurmantel can be pushed and pulled off again. In this way, the impression shaft can continue to be used, while only the Presseurmantel is changed.
  • the DE 40 08 501 A1 shows a printing unit that allows this.
  • this printing unit is the impression shaft stored in printing operation with their shaft journals in two folding bearings.
  • the first shaft journal of the impression roller is exposed by first below the second shaft journal is equipped with a horizontally extending support or slide rail equipped holding device. In this position, the support rail is fixed.
  • a supporting shell which simultaneously defines a vertical pivot axis acts from above.
  • the printing unit described has the disadvantage that employed before changing the presser tower shell at both ends of the impression roller roller support devices or the folding bearings must be removed in order to pivot the impression roller can. Therefore, the change of Pressurmantels is cumbersome and therefore time consuming.
  • Object of the present invention is therefore to propose a generic printing unit, in which the change of the Presseurmantels is less cumbersome.
  • the means for holding the impression roller in an exchange position are configured to hold the impression roller in a position in which the impression roller shaft is inclined against gravity.
  • the force of gravity exerts a torque on the impression roller, so that the impression roller during the exposure of a shaft journal or immediately thereafter with the exposed shaft journal in the direction of the force attracting him, so gravity moves.
  • This is, for example, a vertical lowering movement, which, however, may be superposed with a pivoting movement.
  • the means for holding are arranged so that they are not in contact with the impression shaft during the printing operation. However, they counteract the torque generated by gravity when they come into contact with the impression shaft.
  • the means for holding comprise a stop limiting the angle of inclination.
  • the chosen arrangement of the means for holding determines the angle of inclination that the impression roller shaft now occupies with respect to its previous position, for example the position in the printing operation.
  • the means for holding need not, as is the case in the prior art, first be brought into contact with the impression shaft before the first shaft journal is exposed. In the inclined position can now easily Presseurmantel of be deducted from the impeller shaft, since this process is facilitated due to the gravitational force on the Presseurmantel.
  • the stop can be made movable in order to choose the Absenkumble free. With the aid of a movable stopper, even the lowering and lifting movement can be carried out or supported. In a preferred embodiment of the invention, however, the stop is attached to the printing unit frame.
  • the means for holding the impression roller are adapted to hold the impression roller in at least two different positions, in which the impression roller shaft is inclined against gravity. In this way, the impression roller shaft can be brought into a different position after removal, in which the postponement of a new Presseurmantels is facilitated.
  • a lesser angle of inclination is set than for peeling in order not to have to work with too great a force against gravity.
  • the angle of inclination against gravity in the first position has a different sign than in the second position.
  • This measure facilitates in a particularly simple way changing the Presseurmantels, since now the action of gravity can be exploited on the Presseurmantel to its change.
  • the means for holding comprise a bearing on which the impression roller shaft is articulated or mounted with its second shaft journal.
  • the bearing is constructed so that with him the inclination of the impression shaft is vorappelbar.
  • the bearing may be convexly formed on its outer circumference and enclosed by a concave shaped bushing.
  • This socket is connected to the printing unit frame in a manner described below.
  • the means for holding the impression roller in an exchange position on the impression shaft between the second shaft journal and the working position of the Presseurmantels attack is to be understood as meaning the axial position which the press mantle occupies during the printing operation.
  • the end of the mover shaft is to be understood as a shaft journal.
  • the impression roller shaft can be acted upon by means of a force which effects the inclination of the impression roller shaft.
  • the lifting and lowering device can be brought into engagement with a bearing, which surrounds the impression shaft in the region of the first shaft journal. With this lifting and lowering device, the shaft journal and thus the impression shaft can be moved.
  • the raised position is at the same time the operating position in which the impression roller can be brought into contact with the printing material and employed on the forme cylinder.
  • the lifting and lowering takes place relative to the component of the printing unit to which the lifting and lowering device is attached. This may be the printing unit frame or another component which is connected to the printing frame, be.
  • the holding device with which the second shaft journal of the impression roller shaft is held, and the lifting and lowering device, with which the first shaft journal can be raised and lowered, are each connected to a support plate, the so-called pressure former plates. which are displaceable relative to the printing unit frame.
  • the holding device then consists for example of a attached to the one Presseurplatte support bracket which carries the socket, in which in turn is the camp. But the socket can also be attached directly to the Presseurplatte. Due to the displaceability of the Presseurplatten relative to the printing unit frame of the impression roller can be raised so that it is no longer in contact with the substrate. This is a prerequisite to be able to change the Presseurmantel under continuous operation, so when the substrate is passed through the printing unit on the guide rollers.
  • Fig. 1 shows a printing unit 1 according to the invention, from the printing unit frame, the front side frame is not shown for reasons of clarity, so that the rear side frame 2 is visible.
  • the guide rollers 3, 4, 5 are rotatably mounted in the printing unit frame.
  • the substrate 6 is passed through the printing unit 1.
  • the substrate 6 is additionally guided over the impression roller 7.
  • the impression roller 7 is employed against the forme cylinder 8.
  • This form cylinder 8 takes ink from a color reservoir
  • the impression roller 7 is vertically displaceable relative to the printing unit frame.
  • the impression roller 7 with Presseurplatten 9 of which only the front is visible connected.
  • these Presseurplatten 9 slides 10 are mounted, which include attached to the side frames 2 rails 11, so that a linear mobility is ensured.
  • the displacement itself is effected by a lifting drive 13, which acts on the pull rod 12.
  • the lifting drive 13 facing away from the end of the tie rod 12 is connected to the Presseurplatte 9.
  • the linear actuator can be for example a known per se spindle drive or a piston-cylinder unit: Also, other forms of linear actuators can be used at this point.
  • a lifting and lowering device 14 In the printing operation of the impression roller 7 is held immobile by a lifting and lowering device 14 relative to the Presseurplatte 9.
  • the operation of this lifting and lowering device 14 is effected by a piston-cylinder unit 15 which is rotatably mounted on the Presseurplatte 9.
  • the piston-cylinder unit 15 acts on the first leg of a U-shaped lever 16, which is mounted rotatably in the center approximately on the impression roller plate 9.
  • a connecting piece 17 is articulated.
  • the other end of the connecting piece 17 is rotatably connected to a linear lever 18.
  • This linear lever 18 is rotatably mounted approximately centrally on the Presseurplatte 9.
  • the free end 19 of the linear lever 8 is angled so that it can take under the bearing 21, which is applied to the impression roller shaft 20, and can hold the impression roller 7 so immovable relative to the Presseurplatte 9.
  • the bearing 21 is clamped between the free end 19 of the linear lever 18 and a recess 23 of the Presseurplatte 9.
  • the impression roller plates 9 are first raised via the tie rods 12 and the lifting drives 13 into a predetermined change position so that the impression roller 7 is no longer in contact with the printing material 6. Subsequently, the piston-cylinder unit 15 is actuated. About the lever mechanism, the free end 19 of the linear lever 18 is pivoted from the bearing 21 downwards, so that in the Fig. 1 visible end of impression roller 7 slowly lowers. The free end 19 is additionally provided with a hook 29, which prevents the exposed end of the impression roller 7 from slipping down along the free end 19 and thus descends uncontrolled or obliquely. A substantially vertical lowering is ensured in this way.
  • the Fig. 3 shows the view III-III of Fig. 2 , of the printing unit 1.
  • both side frames 2 and both Presseurplatten 9 are shown or visible.
  • the representation of the guide rollers 3, 4, 5 and the printing material 6 was omitted.
  • Each Presseurplatte 9 is assigned its own pull rod 12 and its own lifting drive 13, but both Presseurplatten 9 are connected for the purpose of synchronization with a crossbar 24. As a result, a uniform pressure of the impression roller 7 is ensured in the direction of the forme cylinder 8 in the printing operation.
  • the free end 19 of the linear lever 18 does not include the bearing 21 of the impression roller 7, so that this first, left side in this Fig., End of the impression roller 7 is slightly lowered.
  • the bearing 25, in which the second end of the impression roller shaft 20 is mounted tiltably equipped.
  • the bearing 25 is surrounded by a bush 28, wherein the bush 28 is connected to the Presseurplatte 9.
  • the impeller shaft 20 penetrates with its shaft journal 26 not only the bearing 25, but also the Presseurplatte 9 and the side frame 2.
  • a stop 27 is attached. On this stop 27, the shaft journal 26 is supported.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Pens And Brushes (AREA)
  • Printing Methods (AREA)
  • Impact Printers (AREA)

Claims (11)

  1. Groupe d'impression (1) d'une presse à imprimer,
    - qui comporte au moins un cylindre presseur (7), qui possède une enveloppe (22) qui, en cours de service du cylindre presseur (7), est fixée sur un arbre (20) de celui-ci au moyen de deux tourillons (26) du côté extrémité,
    - dans lequel (1), en vue de remplacer l'enveloppe (22) du cylindre presseur, au moins l'un des deux tourillons (26) de l'arbre (20) du cylindre presseur peut être dégagé, et
    - lequel (1) comporte des moyens de retenue (25, 27, 28) destinés à maintenir ledit au moins un cylindre presseur (7) dans au moins une position de remplacement de l'enveloppe (22) du cylindre presseur,
    caractérisé
    - en ce que les moyens de retenue (25, 27, 28), destinés à maintenir le cylindre presseur (7) dans une position de remplacement, sont conçus de telle sorte qu'ils maintiennent le cylindre presseur (7) dans une position dans laquelle l'arbre (20) du cylindre presseur est incliné dans le sens opposé à la force de gravité, et
    - en ce que les moyens de retenue (25, 27, 28), destinés à maintenir le cylindre presseur (7) dans une position de remplacement, comportent une butée (27), qui limite l'angle d'inclinaison de l'arbre (20) du cylindre presseur.
  2. Groupe d'impression selon la revendication précédente, caractérisé en ce que les moyens de retenue (25, 27, 28), destinés à maintenir le cylindre presseur (7) dans une position de remplacement, sont aptes à maintenir le cylindre presseur (7) dans au moins deux positions différentes, dans lesquelles l'arbre (22) du cylindre presseur est incliné dans le sens opposé à la force de gravité.
  3. Groupe d'impression selon la revendication précédente, caractérisé
    - en ce que les moyens de retenue (25, 27, 28), destinés à maintenir le cylindre presseur (7) dans une position de remplacement, sont aptes à maintenir le cylindre presseur (7) dans au moins deux positions différentes, dans lesquelles l'arbre (20) du cylindre presseur est incliné dans le sens opposé à la force de gravité,
    - sachant que l'angle d'inclinaison dans le sens opposé à la force de gravité possède dans la première position un signe différent de celui dans la deuxième position.
  4. Groupe d'impression selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de retenue (25, 27, 28) destinés à maintenir le cylindre presseur (7) dans une position de remplacement,
    - comportent un palier (25),
    - sur lequel (25) l'arbre (20) du cylindre presseur est articulé ou monté avec son deuxième tourillon (26), et
    - avec lequel (25), l'inclinaison de l'arbre (20) peut être effectuée
    - de telle sorte que la position verticale du premier tourillon de l'arbre (20) du cylindre presseur peut être modifiée.
  5. Groupe d'impression (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de retenue (25, 27, 28), destinés à maintenir le cylindre presseur (7) dans une position de remplacement, entrent en contact avec l'arbre (20) du cylindre presseur.
  6. Groupe d'impression (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de retenue (25, 27, 28), destinés à maintenir le cylindre presseur (7) dans une position de remplacement, entrent en contact avec l'arbre (20) du cylindre presseur entre le deuxième tourillon (26) et la position de travail de l'enveloppe (22) du cylindre presseur.
  7. Groupe d'impression (1) d'une presse à imprimer selon l'une quelconque des revendications 4 à 7, caractérisé en ce que l'arbre (20) du cylindre presseur peut être sollicité par un dispositif de levage et d'abaissement (14) avec une force qui induit l'inclinaison de l'arbre (20) du cylindre presseur.
  8. Groupe d'impression (1) d'une presse à imprimer selon la revendication précédente, caractérisé en ce que l'arbre (20) du cylindre presseur et le dispositif de levage et d'abaissement (14) sont disposés l'un par rapport à l'autre dans le groupe d'impression (1), de telle sorte que la force qui induit l'inclinaison de l'arbre (20) du cylindre presseur, entre en contact dans la zone d'extrémité de l'arbre (20), dans laquelle se situe le premier tourillon.
  9. Groupe d'impression (1) d'une presse à imprimer selon la revendication précédente, caractérisé en ce que le dispositif de levage et d'abaissement (14) est un mécanisme à levier (16, 17, 18, 19) actionné par voie pneumatique.
  10. Groupe d'impression (1) d'une presse à imprimer selon une ou plusieurs des revendications précédentes, caractérisé en ce que le dispositif de retenue (28), par lequel est maintenu le deuxième tourillon (26) de l'arbre (20) du cylindre presseur, et le dispositif de levage et d'abaissement (14), par lequel le premier tourillon (26) peut être relevé et abaissé, sont reliés chacun à au moins une plaque de support (9), lesquelles peuvent être déplacées en translation par rapport aux bâtis latéraux (2) du cadre du groupe d'impression.
  11. Procédé de remplacement d'une enveloppe (22) d'un cylindre presseur (7), emmanchée sur un arbre (20) du cylindre presseur, dans un groupe d'impression (1) d'une presse à imprimer, le premier tourillon de l'arbre (20) du cylindre presseur étant dégagé pendant que le deuxième tourillon (26) de l'arbre (20) du cylindre presseur est maintenu par des moyens de retenue (25, 27, 28),
    caractérisé
    - en ce que le premier tourillon est abaissé au moyen d'un dispositif de levage et d'abaissement (14),
    - en ce que le dispositif de levage et d'abaissement (14) peut être séparé du premier tourillon en vue du remplacement de l'enveloppe (22) du cylindre presseur, et
    - en ce que, pendant le remplacement de l'enveloppe du cylindre presseur, l'arbre (20) du cylindre presseur dans le sens opposé à la force de gravité, et
    - en ce que l'angle d'inclinaison de l'arbre (20) du cylindre presseur est limité par une butée lorsque le cylindre presseur (7) est situé dans une position de remplacement.
EP05715859A 2004-03-25 2005-02-07 Groupe d'impression de machine a imprimer, muni d'un rouleau presseur Not-in-force EP1732760B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004015180A DE102004015180B4 (de) 2004-03-25 2004-03-25 Druckwerk einer Druckmaschine mit Presseur
PCT/EP2005/002466 WO2005092616A1 (fr) 2004-03-25 2005-02-07 Groupe d'impression de machine a imprimer, muni d'un rouleau presseur

Publications (2)

Publication Number Publication Date
EP1732760A1 EP1732760A1 (fr) 2006-12-20
EP1732760B1 true EP1732760B1 (fr) 2010-06-02

Family

ID=34961917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05715859A Not-in-force EP1732760B1 (fr) 2004-03-25 2005-02-07 Groupe d'impression de machine a imprimer, muni d'un rouleau presseur

Country Status (4)

Country Link
EP (1) EP1732760B1 (fr)
AT (1) ATE469762T1 (fr)
DE (2) DE102004015180B4 (fr)
WO (1) WO2005092616A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006041314B4 (de) * 2006-09-01 2008-10-02 Windmöller & Hölscher Kg Druckwerk einer Tiefdruckmaschine
CN113183623A (zh) * 2021-04-29 2021-07-30 无锡光群雷射科技有限公司 快速换版装置及换版方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE282136C (fr) *
US1329325A (en) * 1918-04-04 1920-01-27 George W Mascord Printing-machine
DE3543704A1 (de) * 1985-12-11 1987-06-19 Md Papierfabrik Pasing Nicolau Vorrichtung und verfahren zum bedrucken einer bahn
IT1226463B (it) * 1988-07-27 1991-01-16 Sted Eng Srl Aggancio rapido per la sostituzione di rulli
DE4008501A1 (de) * 1989-12-18 1991-06-20 Windmoeller & Hoelscher Druckmaschine mit presseurs mit austauschbaren huelsenfoermigen presseurmaenteln
DE4005890A1 (de) * 1990-02-24 1991-09-05 Bielomatik Leuze & Co Klischeehuelsen-montagevorrichtung
US6186068B1 (en) * 1999-05-18 2001-02-13 Creo Srl Method for holding printing sleeves in an imaging device
DE50200595D1 (de) * 2002-02-26 2004-08-12 Rsd Technik Gmbh Gravier- oder Druckmaschine

Also Published As

Publication number Publication date
DE102004015180A1 (de) 2005-10-20
DE102004015180B4 (de) 2008-10-02
WO2005092616A1 (fr) 2005-10-06
ATE469762T1 (de) 2010-06-15
EP1732760A1 (fr) 2006-12-20
DE502005009679D1 (de) 2010-07-15

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