EP1782962A1 - Rouleau avec un manchon élastique comprenant un élément tubulaire - Google Patents

Rouleau avec un manchon élastique comprenant un élément tubulaire Download PDF

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Publication number
EP1782962A1
EP1782962A1 EP05405623A EP05405623A EP1782962A1 EP 1782962 A1 EP1782962 A1 EP 1782962A1 EP 05405623 A EP05405623 A EP 05405623A EP 05405623 A EP05405623 A EP 05405623A EP 1782962 A1 EP1782962 A1 EP 1782962A1
Authority
EP
European Patent Office
Prior art keywords
tubular element
roller
elastic
layer
roller 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.)
Granted
Application number
EP05405623A
Other languages
German (de)
English (en)
Other versions
EP1782962B1 (fr
Inventor
Peter Gertsch
Robert Imhof
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.)
Gimaco Ingenieur AG fur Maschinenbau
Original Assignee
Gimaco Ingenieur AG fur Maschinenbau
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36095814&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1782962(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gimaco Ingenieur AG fur Maschinenbau filed Critical Gimaco Ingenieur AG fur Maschinenbau
Priority to EP05405623A priority Critical patent/EP1782962B1/fr
Priority to AT05405623T priority patent/ATE409594T1/de
Priority to DE502005005561T priority patent/DE502005005561D1/de
Publication of EP1782962A1 publication Critical patent/EP1782962A1/fr
Application granted granted Critical
Publication of EP1782962B1 publication Critical patent/EP1782962B1/fr
Revoked 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
    • B41F13/193—Transfer cylinders; Offset cylinders

Definitions

  • the present invention relates to an elastic covering roller comprising a solid core, the two ends of which are provided with bearing elements cooperating with machine-rack-fixed bearing elements, which solid core is provided with at least one elastic layer to which at least one elastic layer at least one essentially elastic, non-compressible layer is mounted
  • Such rolls are used in many mechanized production processes. Such rolls are used for example in the graphic industry as smoothing, transport and pressure rollers and printing presses as inking and dampening rollers, as transfer and applicator rollers.
  • This heating also has a negative impact on the elastic lining of the roller, this is softer, which can affect the quality of the products to be produced, also reduces the life.
  • the elastic coating consists of several layers.
  • the outer layer is usually harder than the underlying coverings, thereby the roller is more resistant to mechanical and chemical influences.
  • the softer inner layer can be made of a porous one Material, such as foam, exist, whereby the entire surface of the roller is compressible. This means an improvement, but the foam layers are very sensitive, a precise concentricity is only partially feasible.
  • the hardness of the roller is predetermined and can not be changed.
  • the object of the invention is therefore to provide a roller with which the abovementioned disadvantages are avoided and with which additionally the possibility is obtained to be able to optimally adapt the properties of the elastic covering to the respective production conditions as required.
  • the solution of this object is achieved in that the at least one elastic layer is at least one tubular element which is at least one layer and surface applied to the fixed core and firmly connected to this, the inner cavity can be filled with a compressible medium and on which tubular Element outside the at least one substantially elastic, non-compressible layer is mounted.
  • the elastic qualities, in particular the compressibility can be optimally adapted to the existing production conditions.
  • the at least one tubular element is equipped with a connecting piece, via which the compressible medium can be fed into the inner cavity.
  • the pressure of the compressible medium in the cavity of the tubular element can be adapted to other production conditions via this connection piece.
  • a further advantageous embodiment of the invention is that the cross-sectional shape of the at least one tubular element is formed substantially as a rectangle.
  • this tubular element can be optimally connected to the solid core or the layer of the roller adjacent to the inside of this tubular element, for example by gluing, since a flat surface is present.
  • This advantage also results on the outside of this tubular element, with the single-layer and two-dimensional laying on the core of the tubular element is thus obtained on the outside a substantially smooth surface on which the adjoining layer can optimally fasten and optionally attach, for example, by gluing.
  • a further advantageous embodiment of the invention is that the at least one tubular element is wound helically onto the fixed core of the roll, whereby a simple production method is achieved and whereby the pressure distribution is optimal.
  • a single tubular element is applied over the entire length of the roller. This gives identical conditions over the entire length of the roll with regard to the compressibility and hardness of the roll.
  • a further advantageous embodiment of the invention is that the connecting piece, via which the compressible medium in the inner cavity can be fed or discharged, is arranged in the axis of a bearing element and is connected to the tubular element. This gives the possibility that the properties of this roll during operation to continuously changing production conditions are continuously adaptable by the pressure in the tubular member is increased or decreased.
  • a connecting piece is attached to the two-sided end regions of the tubular element wound onto the roller.
  • each tubular element of NBR or HNBR is formed with a hardness of about 70 ° Shore, which has proven to be an optimal material for many applications.
  • the compressible medium which can be filled into the cavities of the tubular elements is air. This makes it possible that the air can be easily discharged into the environment to reduce the pressure within the tubular elements.
  • FIG. 1 shows the one end region of the roll 1 according to the invention.
  • This roller 1 is equipped at both ends with bearing elements 2, consisting of a bearing pin 3, which is rotatably mounted in machine frame fixed bearing elements 10.
  • bearing elements 2 consisting of a bearing pin 3, which is rotatably mounted in machine frame fixed bearing elements 10.
  • a flange 4 is mounted on which flange 4, a hollow cylindrical roller body 5 is placed. This placed on the flange 4 hollow cylindrical roller body 5 forms the fixed core 6 of the roller 1.
  • the front side of the roller body 5 is completed with a cover 7.
  • a tubular element 9 is helically wound on the outer surface 8 of the hollow cylindrical roller body 5 and thus on the core 6 .
  • This tubular element 9 has in the present embodiment, a rectangular cross-section, as will be described later in detail.
  • This tubular element 9 is wound on the roller body 5, that the lateral cheeks 11 of this tubular element abut each other. This creates on the outside a compact surface 12, which has no bumps.
  • tubular element 9 can also be applied differently to the roller body 5, for example, this tubular element 9 can also be arranged in a zigzag side by side in the longitudinal direction.
  • a further layer 13 is applied, which may for example be composed of several layers, which are superimposed and interconnected, wherein the outermost layer is a substantially elastic, non-compressible layer 14.
  • the elastic, non-compressible layer 14 could be applied to the compact surface 12 formed by the helically wound tubular element 9.
  • the end 15 of the helically wound tubular element 9 is in the space between the cover 7 and Flange 4 out, as can be seen from Figure 2.
  • This end 15 of the tubular element 9 can be closed, for example, after the inner cavity 16 of this tubular element 9 has been brought to a predetermined pressure with a compressible medium.
  • This compressible medium may be, for example, air. Depending on how compressible this roller must be, you can work with higher or lower pressure.
  • such rolls can be used for a variety of applications, for example in the graphic industry as a smoothing, transport and pressure roller and in printing machines as inking and dampening rollers, as transfer and applicator rollers.
  • Such rolls are usually employed on hard rolls, so that the surface of this roll is slightly deformed when this roll is pressed against the hard roll.
  • FIGS. 5 a 5 d cross sections of the tubular element 9 are shown, wherein all the embodiments shown here have bent side walls 23. With these folded-in lateral side walls 23, mutual interference of the turns of this tubular element mounted on the roller body is practically ruled out, and an optimal pressure distribution against the inner and outer surface of the tubular element is obtained.
  • the outer surfaces 8 of all these examples shown here are flat, which simplifies the application of further layers.
  • the tubular element 9 may be provided with a continuous foot 24, as shown in Fig. 5a, which may be made wider or narrower depending on the application. Depending on the desired hardness of the roller 1 narrower or wider tubular elements 9 can be used, the wall thickness can also be selected accordingly.
  • FIG. 5a the wall thickness can also be selected accordingly.
  • FIG. 5 c shows a tubular element whose side facing the roller side is provided with an inwardly pointing recess 26. This counteracts a bulging of the outer surface 8 when the tubular element 9 is under pressure.
  • Fig. 5d shows a tubular element whose side walls each have two Einknickungen. This ensures that the outer surface 8 of the tubular element 9, when it is under pressure, can forward this in an optimal manner to the outside.
  • tubular element 9 other cross-sectional shapes of the tubular element 9 are conceivable, this could for example be circular.
  • the surface of the fixed core 6 could be provided with a helical profiling, in which the tubular element 9 could be inserted and connected, whereby an optimal connection could be achieved.
  • On the outside could be placed on the tubular member 6, an intermediate layer which would be elastic in the circumferential direction and hardly elastic in the longitudinal direction, to compensate for the respective bulges of the tubular element.
  • a preferred material from which these tubular elements 9 can be made is NBR or HNBR, which have been found to be particularly suitable, and which have a hardness of about 70 ° Shore.
  • NBR or HNBR which have been found to be particularly suitable, and which have a hardness of about 70 ° Shore.
  • HNBR high-density polyethylene
  • a different material or a different hardness can be used, it is also conceivable that other cross-sectional shapes are used.
  • the embodiment described above is formed with a single tubular element 9. It would also be conceivable to arrange a plurality of tubular elements next to each other, one would then have the opportunity to be able to select and adjust the hardness of the roller zone by zone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP05405623A 2005-11-07 2005-11-07 Rouleau avec un manchon élastique comprenant un élément tubulaire Revoked EP1782962B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05405623A EP1782962B1 (fr) 2005-11-07 2005-11-07 Rouleau avec un manchon élastique comprenant un élément tubulaire
AT05405623T ATE409594T1 (de) 2005-11-07 2005-11-07 Walze mit einem schlauchförmiges element aufweisenden elastischen belag
DE502005005561T DE502005005561D1 (de) 2005-11-07 2005-11-07 Walze mit einem schlauchförmiges Element aufweisenden elastischen Belag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05405623A EP1782962B1 (fr) 2005-11-07 2005-11-07 Rouleau avec un manchon élastique comprenant un élément tubulaire

Publications (2)

Publication Number Publication Date
EP1782962A1 true EP1782962A1 (fr) 2007-05-09
EP1782962B1 EP1782962B1 (fr) 2008-10-01

Family

ID=36095814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05405623A Revoked EP1782962B1 (fr) 2005-11-07 2005-11-07 Rouleau avec un manchon élastique comprenant un élément tubulaire

Country Status (3)

Country Link
EP (1) EP1782962B1 (fr)
AT (1) ATE409594T1 (fr)
DE (1) DE502005005561D1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429048A (en) * 1989-10-05 1995-07-04 Gaffney; John M. Offset lithographic printing press
US6283027B1 (en) * 1993-12-21 2001-09-04 Heidelberger Druckmaschinen Ag Varying profile cylinder blanket
DE10020209A1 (de) * 2000-04-25 2001-11-15 Roland Man Druckmasch Drucktuch für den Druck von Wellkarton

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429048A (en) * 1989-10-05 1995-07-04 Gaffney; John M. Offset lithographic printing press
US6283027B1 (en) * 1993-12-21 2001-09-04 Heidelberger Druckmaschinen Ag Varying profile cylinder blanket
DE10020209A1 (de) * 2000-04-25 2001-11-15 Roland Man Druckmasch Drucktuch für den Druck von Wellkarton

Also Published As

Publication number Publication date
DE502005005561D1 (de) 2008-11-13
ATE409594T1 (de) 2008-10-15
EP1782962B1 (fr) 2008-10-01

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