EP3221243B1 - Cylindre de contact - Google Patents

Cylindre de contact Download PDF

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Publication number
EP3221243B1
EP3221243B1 EP15798364.4A EP15798364A EP3221243B1 EP 3221243 B1 EP3221243 B1 EP 3221243B1 EP 15798364 A EP15798364 A EP 15798364A EP 3221243 B1 EP3221243 B1 EP 3221243B1
Authority
EP
European Patent Office
Prior art keywords
surface layer
segments
web
areas
roll
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.)
Active
Application number
EP15798364.4A
Other languages
German (de)
English (en)
Other versions
EP3221243A1 (fr
Inventor
David FINNEMORE
Alexander WULFERT
Frank Hoffmann
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 EP3221243A1 publication Critical patent/EP3221243A1/fr
Application granted granted Critical
Publication of EP3221243B1 publication Critical patent/EP3221243B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2401/00—Materials used for the handling apparatus or parts thereof; Properties thereof
    • B65H2401/10—Materials
    • B65H2401/11—Polymer compositions
    • B65H2401/112—Fibre reinforced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/132—Details of longitudinal profile arrangement of segments along axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/53—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties
    • B65H2404/532—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties with particular durometer
    • B65H2404/5322—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties with particular durometer surface with different hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/135—Surface texture; e.g. roughness

Definitions

  • the invention relates to a winding device according to the preamble of claim 1 and a method according to the preamble of claim 10.
  • a contact roller of a winding device generally has the task of pressing a material web running onto a roll against it with a defined force so that the roll has a defined winding hardness after its completion.
  • the winding hardness is determined, among other things, by the amount of air wrapped between the individual layers. This amount of air can be influenced by means of the contact roller.
  • known contact rollers comprise a surface layer and which often extends over the entire contact roller in the axial direction and in the circumferential direction.
  • these surface layers have a certain thickness - seen in the radial direction. This surface layer often comprises an elastically deformable material.
  • the U.S. 5,934,603 discloses, as the closest prior art, contact rollers, each with an elevation on both sides. An undercut is provided in between, which means that this area has a smaller radial extent than the elevations.
  • the undercuts of different exemplary embodiments are shaped differently.
  • the JP 56 017 846 discloses a winding device with a winding bed, the winding resting on two support rollers. These support rollers are thickened at their ends, ie they comprise segments there whose surface properties differ from the other areas of the surface.
  • the U.S. 3,796,361 discloses a roller of a buckle folder. This roller is comparable to the platen roller of the JP 56 017 846 .
  • the U.S. 3,796,423 likewise shows a roller of a pocket folding device with elevations in sections. The object of the present invention is therefore to avoid such an edge build-up and to form laps with as constant a lap diameter as possible over the axial extent.
  • the winding device comprises a contact roller which is characterized in that at least two axially spaced and circumferential segments are provided in which the nature of the surface layer differs from the nature of the other areas of the surface layer, these segments with the Edges of the at least one material web are in contact and that the segments of the surface layer have a greater material hardness than the remaining areas of the surface layer, the edges of the material web being able to be pressed onto the roll with a higher pressure force than the other areas of the material web.
  • “Edges” mean the two side edges of a material web that are arranged parallel to one another and, starting from this, an area which extends up to 2 cm, in particular up to 1 cm, in the direction of the center of the film. The edges are formed by trimming, at least in the area where plastic films are wound up.
  • the surface layer is not formed homogeneously, but rather comprises segments, the nature of which differs from the nature of the surface layer outside of these segments. It is advantageous if the surface layer is designed to be homogeneous outside the segments. In the area of the segments, the texture is different. According to the invention it is further provided that the edges of the material web can be contacted by the segments described, the edges being pressed onto the roll with a higher pressure than the other areas of the film. In this way it is now possible to produce a significantly more homogeneous roll and to leave the material web undamaged, as tests have already shown.
  • the contact roller can comprise more than two such segments, since several laps can also be produced simultaneously using one contact roller.
  • several panels are wound. These arise from the fact that a material web is divided into several parallel material webs while continuously cutting out narrow material web strips, which are then wound onto several reels, the reels usually being arranged in alignment on a single winding shaft. In one In such a case, it is advantageous if one of the segments described is in contact with two adjacent edges of different material webs.
  • the segments of the surface layer at least partially have a greater material hardness than the remaining areas of the surface layer.
  • Material hardness here means a property inherent in the material.
  • the segments can be made at least partially from a different material than the other areas or have been treated differently during production or subsequently.
  • the surface layer - regardless of whether a different material was selected for the segments - be brought under pretension in the area of the segments, for example by the fact that the material is pressed in from the inside in the area of the segments. The material should be pressed in so far that it leaves the linear range of the modulus of elasticity when the contact roller is pressed against the roll.
  • the restoring force of the material is greater than in the other areas, so that the edges of the material web are pressed more strongly.
  • the segments have a larger outer surface diameter than the areas of the surface layer which are adjacent to the segments.
  • the above formulation includes that in the other areas of the surface layer the contact roller does not necessarily always have the same external diameter.
  • the surface layer has different roughness on its outer surface, the roughness of the segments having a different value than the roughness of the remaining areas. It is of particular advantage if the roughness of the segments is smaller than the roughness of the other areas.
  • the outer surface of the segments is therefore smoother, which means that air cushions are created in these areas that are thicker or stronger than in the other areas. This ensures that the edge areas are pressed against the roll with greater force than the other areas.
  • the surface layer has a convex shape.
  • a cambered shape means that the surface layer and thus the entire contact roller has a smaller outer diameter at its outer edges than the other areas. When viewed from the side, the contact roller therefore has a concave shape.
  • the contact roller comprises a base body and at least one sleeve concentrically surrounding this base body, which sleeve comprises one or more layers.
  • the outermost layer comprises the surface layer.
  • the base body comprises at least one fiber-reinforced plastic.
  • the fibers can be glass fibers and / or carbon fibers.
  • the sleeve concentrically surrounding the base body can be displaced relative to it.
  • a particularly simple interchangeability of the sleeves can thus be achieved.
  • the base body can then be held at one end for the change process, while the sleeve can be pulled off or pushed on via the other, free end.
  • the base body can be mounted with a removable bearing in the winding operation, so that there is then a stable and stable mounting.
  • the base body and the sleeve can be connected to one another in a non-positive manner.
  • the non-positive connection takes place at least between parts of the outer surface of the base body and parts of the inner surface of the sleeve.
  • the inner surface of the sleeve can comprise an elastic material which is stretched by compressed air emerging from - preferably radially directed - air outlet openings of the base body. The inside diameter of the sleeve is enlarged, so that the sleeve can be pulled off and pushed on easily is made possible.
  • the base body can be equipped with expansion elements, which can be varied in their outer diameter, for example by having cavities under the outer surface that can be pressurized, such as hydraulic fluid, can be acted upon. In this way the diameter of the outer surface is enlarged at least in partial areas and the sleeve is held in a clamping manner.
  • the invention also relates to a method for winding up a material web, with at least one material web being pressed against at least one rotating roll with a contact roller, the contact roller comprising a surface layer.
  • the contact roller comprising a surface layer.
  • at least two axially spaced and circumferential segments of the contact roller in which the nature of the surface layer differs from the nature of the other areas of the surface, are in contact or in contact with the edges of the at least one material web and that the segments of the surface layer have a greater material hardness than the other areas of the surface layer, the edges of the material web being pressed against the roll with a higher pressure than the other areas of the material web .
  • Fig. 1 shows a contact roller 1 according to the invention, which presses a material web 2 running over it, preferably a plastic film web, onto a roll 3.
  • Both the contact roller 1 and the roll 3 are rotatably mounted relative to the machine frame 5 via pins and / or shafts 4.
  • the journals and / or shafts 4 of the roll 3 can also be displaceable relative to the machine frame in order to be continuously removed from the contact roller 1 as the roll diameter increases.
  • the contact roller 1 comprises two segments 6, 7, which have been provided with hatching for clarity. Subregions of these segments 6, 7 are in contact with edge regions 9, 10 of the material web 2
  • the edge region of the material web can be viewed as the region which extends up to 2 cm, preferably up to 1 cm, from the edges 11, 12 in the direction of the material web center 13.
  • the segments 6, 7 are part of the surface layer of the contact roller and differ in their properties in the most varied of ways from the remaining areas 8 (also - depending on the position - referred to as intermediate area or outer area) of the surface layer, as will be explained in more detail below with reference to further figures is explained.
  • Fig. 2 shows a compared to Figure 1 Similar embodiment, however, in the transport direction z of the material web 2 upstream of the contact roller 1, separating knives 20 are arranged, which divide the material web into several separate material webs 21, the so-called benefits, with removal of a trim strip (not shown). As a result of this procedure, the panels are each spaced apart from one another, so that they do not touch one another and thus damage one another. The number of cutting knives that can be introduced into the web path is variable, and thus also the number of separated material webs 21.
  • the individual material webs 21 are each pressed against the roll 23 by the contact roller 1, the contact roller comprises a segment 26 for each edge area of an individual material web 21, although an individual segment can also be in contact with adjacent edge areas of two material webs running directly next to one another.
  • the segments are provided and suitable for pressing the edge areas of the material web onto the roll with a greater force than the other areas of the contact roller.
  • the Fig. 3 shows a section through a contact roller 1 according to the invention.
  • the contact roller 1 comprises a roller core 31 and a surface layer 32, which in the present example covers the entire axial extension of the roller core.
  • the segments 36 are incorporated into the surface layer, which in the radial direction can also comprise individual layers of different, identical or similar materials.
  • the segments 36 each include a central segment 37 and to the right and left of it edge segments 38.
  • the outer surface 39 has a larger outer diameter than the outer surface 40 of the remaining areas 41.
  • the edge segments 38 each form a transition between the two aforementioned outer diameters, so that the radial force acting on the web of material through the contact roller does not change abruptly as a function of the axial position, but has a transition.
  • the surface layer 32 consists of several parts, the remaining areas 41 not being contiguous but being interrupted by the segments 36, which are preferably of annular design.
  • a central segment 37 and the edge segments assigned to it can be designed in one piece, but also in several pieces.
  • the outer surfaces of the edge segments, which run at an angle with respect to the axis of the contact roller, can be produced, for example, by a shaping manufacturing process. If the material of the segments is a plastic or a rubber, for example, this can be produced by means of a casting mold. Mechanical processing is also available for later shaping after the segment has been created.
  • the segments 36 can also be used as expansion tensioning elements, as shown in FIG Figure 6 be explained, designed. The advantage here is that the outside diameter can be adjusted variably.
  • the Fig. 4 now shows an alternative embodiment in which compared to FIG Figure 3 no multi-part surface layer 41 is provided. Rather is a continuous surface layer 42 is provided.
  • the segments 43 can now simply be applied to the surface layer 42. Like it in the Figure 4 As shown in more detail, the segments can also be arranged within circumferential grooves made in the surface layer 42. These grooves can be produced, for example, by machining, for example by milling.
  • the segments 43 can, in particular if they are not arranged in grooves, be displaceable in the axial direction of the contact roller relative to the surface layer.
  • the contact roller according to the invention can thus be adapted very easily to the width of the material web and / or the number of panels.
  • a further embodiment of a contact roller according to the invention is shown.
  • the segments 51 are not distinguished by geometrical configurations that differ from the other areas 52, but by different material properties, in particular with regard to the modulus of elasticity.
  • the segment 51 can again consist of a central segment 53 and edge segments 54, the central segment having a higher modulus of elasticity than that of the other areas 52.
  • the edge segments 54 advantageously have elasticity modules that lie between those of the central segment 54 and the other areas 52, to create a transition, as related to the Figure 4 has been described in relation to the different diameters.
  • the embodiment of the Figure 5 offers the great advantage that in the area of the segments, due to the greater hardness of the material, the latter provides a greater pressing force than the material of the remaining areas 52, so that the edges of the material web can be subjected to a greater force during winding, but without the outer diameter in the Area of the segments compared to that of the other areas must be larger. Nevertheless, the embodiments of Figures 3 or 4 with the embodiment of Figure 5 combine advantageously.
  • the Figure 6 shows a further, advantageous embodiment in which - viewed in the radial direction of the contact roller - at least one expansion tensioning element 63 is provided below the outer surface, advantageously at the boundary between the roller core 61 and the surface layer 62.
  • An expansion tensioning element comprises an outer surface 64 which can be changed in shape and which is in contact with the material of the surface layer.
  • the expansion tensioning element can be part of the roller core or the surface layer. It can also be designed as a separate component, which is pushed onto the roller core or applied in some other way before the surface layer is applied.
  • the expansion tensioning element is advantageously designed in the form of a ring, so that a rotational symmetry results, which causes a uniform influence on the surface layer - seen in the circumferential direction.
  • the expansion tensioning element includes a cavity 65 to which a pressurized fluid can be applied.
  • This fluid can be a gas, a liquid or some other flowable or pourable material.
  • An incompressible fluid such as a so-called hydraulic fluid, is particularly advantageous here.
  • a line 66 for example in the form of a tube, can be provided.
  • a closure is provided which is displaceable relative to the line.
  • the closure can be a screw that is rotated relative to an internal thread of the line 66.
  • the outer surface With increasing pressure - as described - the outer surface is moved outwards.
  • the material of the segment is compressed and / or also moved further outwards.
  • the material is pretensioned so that the contact roller 1 with these segments can apply an increased force to the edge areas of the material web. This also applies if, as in the second case, the outer diameter of the segment is also increased.
  • the materials can advantageously have a greater, the same or even a smaller modulus of elasticity than the material of the other regions.
  • the segments 76 are designed to be gas-permeable.
  • the segments 76 can be provided with through holes, for example bores.
  • at least parts of the segments can also consist of porous, preferably microporous material. The material preferably has pore sizes in the range from 10 to 100 micrometers.
  • a circumferential gas channel 73 which is connected to gas lines 74 can be provided on the inside of the surface layer. These gas lines 74 lead to the outside via a rotary leadthrough 75, where the gas lines are connected to a gas supply.
  • the gas supply is also preferably set up and designed so that there is a pressure difference in the range from 20 mbar to 1 bar between the gas and the environment. Compressed air is preferably used as the gas.
  • the gas now passes through the segments to the outer surface, where an air film is formed between the segments and the edges of the material web, so that there is a higher pressing force in the area of the material web edges compared to the other areas.
  • the Figure 8 shows an embodiment of the invention that is independent of the specific configuration of the segments, in which the Surface layer comprehensive sleeve 82 is displaceable along the arrow 83 relative to the contact roller core. This serves to replace the sleeve 82 with another one which has, for example, a different configuration and / or a different arrangement of the segments, so that the contact roller can be adapted to the requirements with regard to the components of the material web and / or their dimensions. Further details on the design of this variant of the invention have already been given above in the introductory description.
  • the Figure 9 shows a contact roller 91 according to the invention, which can be used for the different widths of the material web.
  • the contact roller 91 comprises different segments 92 which are arranged at different distances from one another.
  • One area of application for this as well as for all other exemplary embodiments according to the invention is the formation of wraps with so-called stretch film, which was produced in particular using the cast film process (more here later).
  • a stretch film is characterized by the fact that it comprises one of the following material combinations: PE-LD, PE-LLD, mPE-LLD, PP.
  • PE means polyethylene
  • LD means low density
  • LLD means linear low density
  • mPE means polyethylene made with metallocene catalysts
  • PP means polypropylene.
  • the film thicknesses are up to 50 micrometers, in particular up to 30 micrometers.
  • the extensibility (changes in length in one direction) of these films is at least 150%, in particular at least 250%.
  • the surfaces of these stretch films are strongly adhesive to sticky.
  • Such stretch films are usually wound into rolls with a width of 50 cm, but also into rolls with a width of 25 cm, since these are standard widths which are matched to various automatic packaging machines. Of course, other, in particular larger, web widths are also possible, such as 45 cm, 75 cm and 100 cm.
  • the segments of the contact roller are now distributed in such a way that they - apart from single-use laps - can also form two-use laps 93.
  • four benefits 94 can also be formed without having to replace the contact roller, further segments 94 being provided which However, even when two panels are formed, they can remain on the contact roller, since they have no - neither positive nor negative - influence on the roll.
  • Further segments can be provided in order to be able to process further widths and / or numbers of uses.
  • the Figure 10 now schematically represents the essential elements of a cast film system 100, as it can preferably be used for producing the stretch films already described above.
  • the nozzle head 101 is acted upon by — usually several different — plasticized plastic flows via extruders, which are not shown. After these plastic streams have been brought together and distributed across the width, which is the task of the nozzle head, the melt emerges from the latter and is applied as a melt curtain to the cooling roller 102, which rotates in the direction of arrow 103. After a certain dwell time, the plastic compound, which has meanwhile cooled down and is therefore now forming a film web 104, is removed from the cooling roller 102 by means of the roller 105.
  • the film web 104 is now fed to the winding device 107 via further rollers 106.
  • this winding device there is a contact roller 1 according to the invention, over which the film web 104 is guided and with which it is pressed against the roll 108 and wound onto it.

Landscapes

  • Winding Of Webs (AREA)

Claims (10)

  1. Dispositif de bobinage pour l'enroulement d'au moins une bande de matériau sur une bobine en rotation, de préférence pour l'enroulement d'au moins une bande de film de matière plastique, comprenant un rouleau de contact (1) pour la compression d'au moins une bande de matériau (2), de préférence une bande de film de matière plastique, contre au moins une bobine en rotation (3), le rouleau de contact (1) comprenant une couche superficielle,
    caractérisé en ce que
    au moins deux segments (6, 7, 26, 36, 43, 50, 76, 92), distants dans la direction axiale et circulant dans la direction circonférentielle, sont prévus, dans lesquels la texture de la couche superficielle se distingue de la texture des autres zones (41, 52) de la couche superficielle, dans lequel au moins des parties de ces segments sont en contact avec les bords (9, 10) de l'au moins une bande de matériau (2) et en ce que les segments (6, 7, 26, 36, 43, 50, 76, 92) de la couche superficielle présentent une dureté de matériau supérieure à celle des autres zones (41, 52) de la couche superficielle, dans lequel les bords (9, 10) de la bande de matériau (2) peuvent être appuyés contre la bobine (3) avec une force de pression supérieure aux autres zones de la bande de matériau.
  2. Dispositif de bobinage selon la revendication précédente,
    caractérisé en ce que
    les segments (6, 7, 26, 36, 43, 50, 76, 92) présentent un diamètre de surface extérieure supérieur aux zones (41, 52) de la couche superficielle, qui sont adjacentes au segment.
  3. Dispositif de bobinage selon l'une des revendications précédentes,
    caractérisé en ce que
    la couche superficielle présente des rugosités différentes sur la surface extérieure, dans lequel la rugosité des segments (6, 7) présente une valeur différente de la rugosité des autres zones (41, 52).
  4. Dispositif de bobinage selon la revendication précédente,
    caractérisé en ce que
    la rugosité des segments (6, 7, 26, 36, 43, 50, 76, 92) est plus faible que la rugosité des autres zones (41, 52).
  5. Dispositif de bobinage selon l'une des revendications précédentes,
    caractérisé en ce que
    la couche superficielle présente une forme bombée.
  6. Dispositif de bobinage selon l'une des revendications précédentes,
    caractérisé en ce que
    le rouleau de contact (1) comprend un corps de base ainsi qu'au moins un manchon entourant de manière concentrique ce corps de base, qui comprend une ou plusieurs couches, dans lequel la couche la plus externe comprend la couche superficielle.
  7. Dispositif de bobinage selon la revendication précédente,
    caractérisé en ce que
    le corps de base comprend au moins une matière plastique renforcée partiellement par des fibres de carbone et/ou des fibres de verre.
  8. Dispositif de bobinage selon l'une des deux revendications précédentes,
    caractérisé en ce que
    le manchon entourant de manière concentrique le corps de base peut être coulissé par rapport au corps de base.
  9. Dispositif de bobinage selon l'une des trois revendications précédentes,
    caractérisé en ce que
    le manchon entourant de manière concentrique le corps de base peut être relié par force avec le corps de base.
  10. Procédé d'enroulement d'au moins une bande de matériau (2), dans lequel, avec un rouleau de contact (1, 91), au moins une bande de matériau est comprimée contre au moins une bobine (3) en rotation, dans lequel le rouleau de contact (1, 91) comprend une couche superficielle,
    caractérisé en ce que
    au moins deux segments (6, 7, 26, 36, 43, 50, 76, 92), distants dans la direction axiale et circulant dans la direction circonférentielle, du rouleau de contact (1, 91), dans lesquels la texture de la couche superficielle se distingue de la texture des autres zones de la couche superficielle, sont en contact ou sont amenés en contact avec les bords (11, 12) de l'au moins une bande de matériau et en ce que les segments de la couche superficielle présentent une dureté de matériau supérieure aux autres zones (41, 52) de la couche superficielle, dans lequel les bords (6, 7, 26, 36, 43, 50, 76, 92) de la bande de matériau sont comprimés contre la bobine avec une force de pression supérieure aux autres zones (41, 52) de la bande de matériau.
EP15798364.4A 2014-11-20 2015-11-16 Cylindre de contact Active EP3221243B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014223758.0A DE102014223758A1 (de) 2014-11-20 2014-11-20 Kontaktwalze
PCT/EP2015/076700 WO2016079059A1 (fr) 2014-11-20 2015-11-16 Cylindre de contact

Publications (2)

Publication Number Publication Date
EP3221243A1 EP3221243A1 (fr) 2017-09-27
EP3221243B1 true EP3221243B1 (fr) 2020-10-07

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EP15798364.4A Active EP3221243B1 (fr) 2014-11-20 2015-11-16 Cylindre de contact

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Country Link
US (1) US10301133B2 (fr)
EP (1) EP3221243B1 (fr)
DE (1) DE102014223758A1 (fr)
WO (1) WO2016079059A1 (fr)

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DE102016123893A1 (de) 2016-12-08 2018-06-14 Immatics Biotechnologies Gmbh T-Zellrezeptoren mit verbesserter Bindung
WO2019209534A1 (fr) * 2018-04-24 2019-10-31 Applied Materials, Inc. Tour à air à zones multiples pour le transport d'un substrat flexible
EP3892441A1 (fr) 2020-04-07 2021-10-13 Entex Rust & Mitschke GmbH La mise à niveau d'une installation d'extrudeuse

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EP3221243A1 (fr) 2017-09-27
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DE102014223758A1 (de) 2016-05-25
US20170327334A1 (en) 2017-11-16

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