EP0196443B1 - Cylindre d'impression en creux comportant un noyau et un manchon amovible - Google Patents

Cylindre d'impression en creux comportant un noyau et un manchon amovible Download PDF

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Publication number
EP0196443B1
EP0196443B1 EP19860102237 EP86102237A EP0196443B1 EP 0196443 B1 EP0196443 B1 EP 0196443B1 EP 19860102237 EP19860102237 EP 19860102237 EP 86102237 A EP86102237 A EP 86102237A EP 0196443 B1 EP0196443 B1 EP 0196443B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
printing cylinder
intaglio printing
core
cylinder according
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
EP19860102237
Other languages
German (de)
English (en)
Other versions
EP0196443A3 (en
EP0196443A2 (fr
Inventor
Karl Saueressig
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.)
Saueressig GmbH and Co KG
Original Assignee
Saueressig GmbH and Co 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
Priority claimed from DE3511530A external-priority patent/DE3511530C2/de
Application filed by Saueressig GmbH and Co KG filed Critical Saueressig GmbH and Co KG
Priority to AT86102237T priority Critical patent/ATE52965T1/de
Publication of EP0196443A2 publication Critical patent/EP0196443A2/fr
Priority claimed from EP87101690A external-priority patent/EP0278017A1/fr
Publication of EP0196443A3 publication Critical patent/EP0196443A3/de
Application granted granted Critical
Publication of EP0196443B1 publication Critical patent/EP0196443B1/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
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/16—Curved printing plates, especially cylinders
    • B41N1/22—Curved printing plates, especially cylinders made of other substances
    • 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 gravure cylinder, consisting of a core and a sleeve releasably connected thereto, the core being essentially solid and made of metal and provided with channels for guiding compressed air to its outer surface, and wherein the sleeve by means of a Compressed air generated air cushion can be pushed onto and removed from the core.
  • Gravure cylinders of the type mentioned are known per se to the person skilled in the art in the field of printing press technology from tests in the relevant industry. Their purpose is to simplify the handling of the printing cylinders and to reduce the cost of transportation, since the cores remain in the printing shop and only the sleeves without a core are transported back and forth between engraving and printing. Such a gravure cylinder is described in EP-A-0 009 360.
  • Such a gravure cylinder offers the advantage that the inside diameter of the sleeve can be enlarged to an extent sufficient for being pulled onto the core and pulled off the core, and that at the same time the outside diameter and the outside shape of the sleeve are completely constant and constant.
  • the sturdy sleeve ensures exact concentricity during the printing process and thus good print quality. Since the inner layer is only slightly elastic and slightly compressible, relative movements between the core and the sleeve can practically not occur with the pressure forces customary during printing. Due to the possible variation in the thickness of both the inner layer and the middle layer of the sleeve, sleeves with a wide variety of outer diameters or circumferences can be produced with the same inner diameter.
  • the number of core diameters required can thus be drastically reduced by a relatively wide gradation. Due to its inherent stability, the sleeve of the rotogravure cylinder according to the invention is largely protected against deformation and damage during handling and transport, without the need for expensive precautionary measures.
  • a preferred material for the inner layer of the sleeve is rubber, because on the one hand it is freely adjustable in the required elasticity and on the other hand it can be machined with sufficient accuracy.
  • the material of the inner layer of the sleeve is non-porous and that recesses are provided on the outside of the material which allow an increase in the inner diameter of the inner layer.
  • the number, shape, depth and position of the recesses allow the degree of compressibility of the inner layer and thus the degree of enlargeability of the inner diameter of the sleeve to be precisely determined.
  • the arrangement of the recesses on the outside of the inner layer results in an advantageously smooth inner surface of the sleeve, which makes it easier to pull on and off and protects the inner layer from damage.
  • a Shore hardness between 70 and 110 is preferred between 85 and 90.
  • an enlargement of the inner diameter of about 0.1 mm can be achieved, which makes it easy to pull open and Pulling off the sleeve is sufficient.
  • the sleeve could not be pulled off the core with a pulling force of 1500 kp, as was shown in tests.
  • a particularly favorable and advantageous shape of the cutouts on the outside of the inner layer of the sleeve is formed by at least one spiral-shaped, flat groove.
  • This shape offers a particularly high shear stability of the inner layer, since the outside thereof is not divided into separate segments, but rather has a shape that is continuous in the circumferential direction.
  • these recesses e.g. are relatively easy and precise to produce on a lathe.
  • the roundness and concentricity of the sleeve it is provided that at least the inner layer of the sleeve including the recess is made on a nut core with the diameter of the core receiving the sleeve for the printing process.
  • the thickness of the inner layer of the sleeve can be changed.
  • the thickness of the inner layer of the sleeve is preferably between 3 and 30 mm. In this thickness range, both an adequate enlargement of the inner diameter and a sufficient stability and accuracy of the printing cylinder are guaranteed.
  • a preferred material for the middle layer of the sleeve which is responsible for generating the required stability, is glass fiber reinforced plastic. This material has a relatively low weight and offers very high mechanical stability and resilience even with low wall thicknesses, e.g. is known from boat building. To further increase stability, additional reinforcement, preferably made of metal mesh or fabric, can be incorporated into the material.
  • a nickel layer of low thickness is applied 'appropriate to the outside.
  • the application is preferably carried out by electroless nickel plating.
  • the following copper layer can then be generated galvanically, for example.
  • Another material which can advantageously be used for the middle layer of the sleeve is metal, here preferably aluminum or steel. With this, an even higher stability and rigidity of the sleeve can be achieved, but this is associated with a higher weight of the sleeve. Which material is ultimately used in a specific case depends on the needs and requirements of the user and the size of the printing cylinder.
  • a variation in the thickness of the middle layer of the sleeve can also be used to produce different outer diameters of the sleeve with a constant core diameter.
  • the thickness of the middle layer of the sleeve is preferably between 3 and 50 mm. On the one hand, this range of thickness allows a very wide gradation of the core diameter and, on the other hand, ensures sufficient rigidity of the sleeve without the weight of the sleeve becoming too high for easy handling.
  • a ring of electrically conductive material is arranged on the end face of the sleeve in the area of the inner and middle layer, the inside diameter of which is slightly larger than that of the inner layer and its outer diameter corresponds approximately to the outer diameter of the middle layer.
  • These rings can be used to conduct current during the electroplating in a known manner.
  • the end of the copper layer around the edges can also be applied to the outer surface of the rings, which improves the durability of the copper layer on the remaining part of the sleeve and thus the service life of the printing cylinder.
  • the core has, on its outer surface, circumferential flat grooves extending from the ends of the channels for guiding the compressed air. This ensures a uniform distribution of the compressed air and thus the forces generated by it on the inside of the sleeve. Forces of force on the sleeve, which lead to a deviation from the desired exact cylinder shape, are avoided.
  • the number of channels or bores to be introduced into the core for guiding the compressed air to the outside of the core can be reduced in a cost-saving manner.
  • FIG. 1 A preferred exemplary embodiment of the invention is explained in more detail below with reference to a drawing.
  • the only figure of the drawing shows a gravure cylinder according to the present invention in longitudinal section with the sleeve partially removed from the core.
  • the illustrated embodiment of the intaglio cylinder essentially consists of a core 2 and a sleeve 3 surrounding it.
  • the core 2 has the shape of a cylinder with front axle stubs 21 for mounting the printing cylinder during the printing process.
  • the core 2 which is otherwise made of solid metal, generally steel, has a central air duct 22 and a number of this air channels 23 leading radially outwards to the outer surface 25 of the core 2.
  • the central air duct 22 is led outwards on one side and is provided with a connecting piece 26 in the region of the end face of the one axle stub 21.
  • a compressed air hose 4 can be connected to this connecting piece 26 by means of a suitable coupling 41.
  • the sleeve 3 consists essentially of three layers, namely an inner layer 31, a middle layer 33 and an outer layer 34, which are each arranged concentrically to the axis of rotation of the printing cylinder 1.
  • the inner layer 31 of the sleeve 3 consists of an elastic rubber material and has on its outside recesses 32 in the form of grooves running in the circumferential direction.
  • the inside 36 of the inner layer 31, on the other hand, has a smooth surface.
  • the middle layer 33 in the illustrated embodiment consists of a rigid material, here in the exemplary embodiment glass fiber reinforced plastic.
  • a circumferential metal ring 35 which is connected to the two layers 31 and 33, for example by gluing, is arranged on the end face of the inner layer 31 and the middle layer 33.
  • the rings 35 serve to transmit the electrical current required for the galvanic application of the outer layer 34.
  • the outer layer 34 is - as is usual with gravure cylinders - a copper layer. This is also applied to the rings 35 on the end faces 34 'around the edges.
  • the copper layer forming the outer layer 34 preferably has a thickness such that the edges in the region of the end faces 34 'can be rounded off in a sufficient manner.
  • a nickel layer (not shown) can be applied between the middle layer 33 and the outer layer 34 to enable galvanic copper plating before the galvanization.
  • the inner layer 31 and the middle layer 33 are preferably connected to one another by gluing, leaving the cutouts 32 free.
  • the central air channel 22 is supplied with compressed air via the hose 4, which reaches the outside 25 of the core 2 via the radially extending channels 23.
  • circumferential flat grooves 24 are arranged on the outside 25 of the core 2, through which the compressed air is distributed uniformly over the circumference of the core 2.
  • the gap between the outside 25 of the core 2 and the inside 36 of the sleeve is shown exaggeratedly large; in practice, a gap of 0.1 mm or less is sufficient to be able to move the sleeve 3 relative to the core 2 with little effort.
  • the inside 36 of the sleeve 3 lies intimately on the outside 25 of the core 2, whereby a sufficiently firm and dimensionally stable connection between the core 2 and the sleeve 3 is produced.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Printing Plates And Materials Therefor (AREA)

Claims (14)

1. Cylindre d'impression en creux comportant un noyau (2) et un manchon amovible (3) relié à ce dernier, le noyau étant sensiblement massif et composé de métal et comportant des canaux (22, 23) pour le guidage d'air comprimé vers sa surface extérieure, et le manchon pouvant être appliqué sur le noyau ou en être écarté à l'aide d'un matelas d'air qui peut être créé par de l'air comprimé,
caractérisé en ce que le manchon (3) se compose d'au moins trois couches concentriques (31, 33, 34),
en ce que la couche intérieure (31) se compose d'une matière de faible élasticité et est faiblement compressible,
en ce que la couche centrale (33) se compose d'une matière rigide et stable en soi,
en ce que la couche interne et/ou la couche médiane (31, 33) peuvent respectivement varier en épaisseur, et en ce que la couche extérieure (34) est un film de cuivre.
2. Cylindre d'impression en creux selon la revendication 1, caractérisé en ce que la couche intérieure (31) du manchon (3) est en caoutchouc.
3. Cylindre d'impression en creux selon la revendication 1 ou 2, caractérisé en ce que la matière de la couche intérieure (31) du manchon (3) est exempte de pores et en ce que des évidements (32) permettant une augmentation du diamètre intérieur de la couche intérieure (31) sont ménagés sur le côté extérieur de la matière.
4. Cylindre d'impression en creux selon l'une des revendications 1 à 3, caractérisé en ce que le caoutchouc qui constitue la couche intérieure (31) du manchon (3) possède une dureté Shore comprise entre 70 et 110, de préférence entre 85 et 90.
5. Cylindre d'impression en creux selon l'une des revendications 1 à 4, caractérisé en ce que les évidements (32) situés sur le côté extérieur de la couche intérieure (31) du manchon (3) sont constitués d'au moins une rainure plate de tracé hélicoïdal.
6. Cylindre d'impression en creux selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins la couche intérieure (31) du manchon (3) y compris l'évidement (32) est fabriquée sur un noyau-mère présentant le diamètre du noyau (2) qui accepte le manchon (3) pour le precessus de compression.
7. Cylindre d'impression en creux selon l'une des revendications 1 à 6, caractérisé en ce que l'épaisseur de la couche intérieure (31) du manchon (3) est de 3 à 30 mm.
8. Cylindre d'impression en creux selon la revendication 1, caractérisé en ce que la couche médiane (33) du manchon (3) est constituée d'une matière plastique armée de fibre de verre.
9. Cylindre d'impression en creux selon l'une des revendications 1 à 8, caractérisé en ce que la couche médiane (33) du manchon (3) présente une armure, de préférence en grille ou en tamis métallique.
10. Cylindre d'impression en creux selon l'une des revendications 1, 8 et 9, caractérisé en ce qu'une couche de nickel de faible épaisseur est appliquée sur le côté extérieur de la couche médiane (33) du manchon (3).
11. Cylindre d'impression en creux selon la revendication 1, caractérisé en ce que la couche médiane (33) du manchon (3) est en métal, de préférence en aluminium ou en aiter.
12. Cylindre d'impression en creux selon l'une des revendications 1, et 8 à 11, caractérisé en ce que l'épaisseur de la couche médiane (33) du manchon (3) est comprise entre 3 et 50 mm.
13. Cylindre d'impression en creux selon l'une des revendications 1 à 12, caractérisé en ce qu'un anneau (35) en matière électriquement conductrice, dont le diamètre est un peu plus grand que celui de la couche intérieure (31) et dont le diamètre extérieur correspond à peu près au diamètre extérieur de la couche médiane (33), est appliqué sur le manchon (3) sur chacun des côtés frontaux dans la zone de la couche intérieure et de la couche médiane (31, 33).
14. Cylindre d'impression en creux selon l'une des revendications 1 à 13, caractérisé en ce que le noyau (2) présente, sur sa surface extérieure (25), des rainures plates périphériques (24) partant des extrémités des canaux (23) pour l'amenée de l'air comprimé.
EP19860102237 1985-03-29 1986-02-20 Cylindre d'impression en creux comportant un noyau et un manchon amovible Expired - Lifetime EP0196443B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102237T ATE52965T1 (de) 1985-03-29 1986-02-20 Tiefdruckzylinder, bestehend aus einem kern und einer loesbar mit diesem verbundenen huelse.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3511530A DE3511530C2 (de) 1985-03-29 1985-03-29 Tiefdruckzylinder
DE3511530 1985-03-29
EP87101690A EP0278017A1 (fr) 1987-02-07 1987-02-07 Cylindre d'impression en creuse comportant un noyau et un manchon amovible

Publications (3)

Publication Number Publication Date
EP0196443A2 EP0196443A2 (fr) 1986-10-08
EP0196443A3 EP0196443A3 (en) 1987-12-02
EP0196443B1 true EP0196443B1 (fr) 1990-05-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860102237 Expired - Lifetime EP0196443B1 (fr) 1985-03-29 1986-02-20 Cylindre d'impression en creux comportant un noyau et un manchon amovible

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EP (1) EP0196443B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4341262A1 (de) * 1993-01-22 1994-07-28 Heidelberger Druckmasch Ag Vorrichtung für die Reduzierung von Materialausbuchtungen auf einer rohrförmigen Druckhülse
US7316183B2 (en) 2002-09-06 2008-01-08 Polywest Kunststofftechnik Saueressig & Partner Gmbh & Co. Kg Sleeve with multiple layer structure for printing presses and method for its manufacture
DE10345562B4 (de) * 2003-10-01 2014-09-04 Sächsische Walzengravur GmbH Einweghülse zum lösbaren Befestigen entweder auf einer Trägerwalze oder auf einer Adapterhülse der Trägerwalze zum Drucken, Lackieren und Beschichten

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0278017A1 (fr) * 1987-02-07 1988-08-17 Saueressig Gmbh & Co. Cylindre d'impression en creuse comportant un noyau et un manchon amovible
ES2022212B3 (es) * 1987-06-19 1991-12-01 Saueressig Gmbh + Co Cilindro de huecograbado consistiendo en un nucleo y un manguito soltable unido con dicho nucleo
FR2684924B1 (fr) * 1991-12-11 1994-03-04 Jean Francille Manchon porte-cliches pour cylindre d'impression flexographique.
ATE171673T1 (de) 1994-05-19 1998-10-15 Jean Francille Verfahren zur herstellung einer hülse für eine druckmaschine, und damit erzeugte hülse
DE4432816A1 (de) * 1994-09-15 1996-03-21 Roland Man Druckmasch Druckwalze für den kanallosen Druck
US5906149A (en) * 1995-11-30 1999-05-25 Montenegro Criado; Manuel Anvil for rotary slotting and cutting machines
EP0818285B1 (fr) * 1995-11-30 2002-01-30 Manuel Montenegro Criado Enclume pour machines rotatives a rainurer et a decouper
US5840386A (en) * 1996-02-22 1998-11-24 Praxair S.T. Technology, Inc. Sleeve for a liquid transfer roll and method for producing it
DE19918432A1 (de) 1999-04-23 2000-10-26 Saueressig Gmbh & Co Dehnschicht aus kompressiblem Material
DE10039744B4 (de) * 2000-08-16 2008-06-05 Hueck Folien Gesellschaft M.B.H. Spannzylinder zur Aufnahme und Befestigung einer zylindrischen Prägeform mit einer strukturierten Oberfläche
FR2815572B1 (fr) * 2000-10-24 2003-06-27 Jean Francille Manchon d'impression a montage par expansion radiale
US6905119B2 (en) * 2002-06-19 2005-06-14 Hewlett-Packard Development Company, L.P. Pressurized roller
DE502005009727D1 (de) * 2005-07-18 2010-07-22 Hueck Folien Gmbh Druckzylinder mit abnehmbarer Prägeform
LU91741B1 (de) * 2010-09-24 2012-03-26 Euro Composites Mehrschichtige expandierbare Hülse für einen Druckmaschinenzylinder insbesondere für Flexodruck
US8871431B2 (en) 2011-08-08 2014-10-28 Timothy Gotsick Laminated flexographic printing sleeves and methods of making the same
CN107351519B (zh) * 2017-08-22 2019-11-12 赣州彩盛印刷有限公司 一种凹版印刷机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015268A (en) * 1958-04-04 1962-01-02 Russell U Garrett Laminated printing plate and process for making same
IN146438B (fr) * 1976-01-08 1979-06-02 Strachan & Henshaw Ltd
DE2966610D1 (en) * 1978-09-13 1984-03-08 Drg Uk Ltd Manufacture of printing sleeves
IT8268063A0 (it) * 1982-09-02 1982-09-02 Saiag Spa Rullo gommato per macchine strappatrici di fibre tessili e simili applicazioni

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4341262A1 (de) * 1993-01-22 1994-07-28 Heidelberger Druckmasch Ag Vorrichtung für die Reduzierung von Materialausbuchtungen auf einer rohrförmigen Druckhülse
DE4341262C2 (de) * 1993-01-22 1999-04-08 Heidelberger Druckmasch Ag Vorrichtung für die Reduzierung von Materialausbuchtungen auf einer rohrförmigen Druckhülse
US7316183B2 (en) 2002-09-06 2008-01-08 Polywest Kunststofftechnik Saueressig & Partner Gmbh & Co. Kg Sleeve with multiple layer structure for printing presses and method for its manufacture
DE10241800B4 (de) * 2002-09-06 2014-04-30 Polywest Kunststofftechnik Saueressig & Partner Gmbh & Co. Kg Hülse mit mehrschichtigem Aufbau für Druckmaschinen und Verfahren zu ihrer Herstellung
DE10345562B4 (de) * 2003-10-01 2014-09-04 Sächsische Walzengravur GmbH Einweghülse zum lösbaren Befestigen entweder auf einer Trägerwalze oder auf einer Adapterhülse der Trägerwalze zum Drucken, Lackieren und Beschichten

Also Published As

Publication number Publication date
EP0196443A3 (en) 1987-12-02
EP0196443A2 (fr) 1986-10-08

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