Processing cylinder for the mechanical processing of web- or arc-shaped substrates, machine for processing and / or machining arc- or web-shaped substrates, and method for setting up a processing cylinder

Abstract

The invention relates to a processing cylinder for the mechanical processing of web- or arc-shaped substrates, comprising a cylindrical body which exerts a magnetic force on adjacent magnetic or magnetizable elements in the region of its periphery and carries one or more processing tools in the form of one or more lifts on its outer surface, which are releasably held by magnetic forces. The processing tool carries working elements for the mechanical processing of the substrate on its outer surface and has at least one metallic or metal-containing support layer made of or containing a ferromagnetic material. A friction-enhancing layer is arranged or incorporated between the metallic or metal-containing support layer and the metallic and / or magnetic outer surface of the magnetically active cylindrical body.The invention further relates to a machine for processing and / or manufacturing arc- or web-shaped substrates and a method for setting up a processing cylinder.

Description

[0001] The invention relates to a processing cylinder for the mechanical processing, preferably for embossing, of web- or arc-shaped substrates, a machine for processing and / or machining arc- or web-shaped substrates, and a method for setting up a processing cylinder according to the features of claim 1, 9 or 12.

[0002] In the production of products from planar substrates, e.g. arc- or web-shaped, these substrates are often subject to one or more mechanical, in particular shaping, processing steps, such as punching or embossing, whereby, for example, punching shapes the individual components with regard to their cutting lines and embossing creates a relief-like shape on a substrate surface.

[0003] Embossing is a common and, in this context, particularly relevant processing method for refining or designing substrates, such as for packaging, labels, wallpaper, or even for creating Braille. Embossing, especially blind embossing, involves creating raised and / or recessed areas in an otherwise flat surface to produce a specific pattern, motif, or lettering in the substrate using a die and a counter die. Besides flatbed embossing processes, rotary embossing processes are also known, in which two rotating processing cylinders, particularly embossing cylinders, form a processing gap for the embossing process.

[0004] In addition to embossing patterns applied over a large area of ​​a substrate – as is used, for example, in wallpaper embossing – embossing multiple units, i.e., several individual units on the same substrate, also results in non-contiguous embossing patterns that are applied side by side and / or one behind the other on the same substrate unit – as is used, for example, with small-format packaging blanks or labels. For the former, continuous processing tools, especially embossing tools, are used across the processing width and length of the respective processing cylinder; for the latter, several individual processing tools, especially embossing tools, may be used that are narrower than the processing width and / or shorter than the processing length.

[0005] The embossing tools are designed as detachable attachments, e.g., detachable embossing dies, which are detachably attached, or can be attached, to the cylindrical surface of the respective machining cylinder. The two machining cylinders of a machining unit carry, for example, corresponding embossing tools, which are defined, for instance, by one or more dies on one of the machining cylinders and by one or more male dies on the other.

[0006] For the variable configuration of a machining cylinder with machining tools, the design as a so-called magnetic cylinder is particularly advantageous; that is, a design with a magnetically active cylinder body which, when equipped with the corresponding machining tools, forms the configured machining cylinder. Here and in the following, a magnetic cylinder, or the underlying magnetically active cylinder body, is understood to mean at least all types of cylinders or drums that exert a magnetic force, in particular a magnetic attraction, on adjacent magnetic or magnetizable, preferably ferromagnetic, elements in the region of their periphery, especially on machining tools containing magnetic or magnetizable materials, such as embossing dies.Such a cylindrical body can be designed as a solid cylinder, as a cylinder with embedded magnetic segments, or as a carrier cylinder for magnetic segments or magnetic sheets arranged on it, which applies analogously to the drum design.

[0007] For example, EP 3 749 523 A2 discloses a method and a device for rotary embossing of a substrate. The embossing tool is mounted on a magnetic cylinder and aligned with a positioning aid. The embossing tool, designed as a die or male die, can be single-layered or multi-layered, with the single or innermost layer, i.e., the one facing the cylinder's outer surface, being made of a metal, in particular a magnetic metal material. In a multi-part embodiment, the outer layer of the male die, effective for embossing, can be made of plastic, in particular a photopolymer, rubber, or elastomer, and applied to the metallic substrate layer via an adhesive layer.

[0008] Problems with magnetic fastening can arise, in particular, because a machining tool might unintentionally slip on the magnetically active cylinder body of the machining cylinder during operation, despite the magnetic holding forces. This would result in inaccurate embossing or even an emergency stop.

[0009] The invention is based on the objective of creating an improved processing cylinder for the mechanical processing, in particular embossing, of web- or arc-shaped substrates, a machine for processing and / or manufacturing arc- or web-shaped substrates, and a method for setting up a processing cylinder.

[0010] The problem is solved according to the invention by the features of claim 1, 9 or 12.

[0011] The invention is based on the idea of ​​counteracting the above problem by providing a measure to increase static friction between the metallic, in particular magnetic or magnetizable, inner surface of the mechanical machining tool and the outer surface of the magnetically effective cylinder body formed by metal and / or magnets, in particular a friction-, especially static friction-increasing, preferably non-metallic layer between the metallic inner surface of the machining tool and the metallic and / or magnetic outer surface of the machining cylinder.

[0012] The advantages achievable with the invention consist in particular in that it provides a measure against unintentional slippage of magnetically fixed machining tools without unduly weakening the magnetic holding force.

[0013] Unlike adhesives, which are often impossible or only removable from a cylinder surface without leaving residue after rework, the layer according to the invention leaves no traces and is nevertheless effective as an anti-slip layer.

[0014] A preferred machining cylinder for the mechanical processing of web- or arc-shaped substrates comprises a magnetically active cylindrical body that exerts a magnetic force, in particular an attractive force, on adjacent magnetic or magnetizable elements in the region of its periphery, and carries on its outer surface one or more machining tools in the form of one or more lifts, which are releasably held by magnetic forces. The machining tool carries working elements for mechanical processing on its outer surface and has at least one metallic or metal-containing support layer made of or containing a ferromagnetic material. A friction-enhancing layer is arranged or introduced between the metallic or metal-containing support layer and the metallic and / or magnetic outer surface of the magnetically active cylindrical body.

[0015] Preferably the layer is made of or comprises a plastic and / or is made of or comprises an elastomer and / or is made of or comprises an elastomer and / or is made of or has at least one photopolymer.

[0016] Further advantageous designs and developments of the processing cylinder and the coating can be found in the following descriptions and claims.

[0017] A machine for processing and / or manufacturing sheet- or web-shaped substrates comprises a processing unit for mechanically processing the substrate. This unit has a first and a second processing cylinder, between which a sheet- or web-shaped substrate can be guided to undergo mechanical processing. At least one of the two processing cylinders is configured as described above. In a particularly advantageous embodiment, one or more printing units are arranged upstream of the processing unit and / or a die-cutting unit for cutting individual blanks from the substrate is arranged downstream. A stripping unit can also be provided for removing the blanks, which may have been previously cut, or the surrounding remnants. This allows, for example, blanks that are printed once or multiple times, have an embossed surface, and may already be die-cut to be produced inline by a single machine.

[0018] When setting up a machining cylinder, a friction-enhancing layer is provided between the metallic or metal-containing carrier layer and the outer surface of the magnetically effective cylinder body, whereby this is applied before setup - by 3D printing or squeegee application - preferably as a coating on the inside of the machining tool or, if necessary, on a film to be inserted between the outer surface and the machining tool.

[0019] They show: Fig. 1 a schematic representation of a sheet-fed printing machine with a device for mechanical processing, in particular embossing, of substrates; Fig. 2 a processing machine for processing, in particular embossing, substrates; Fig. 3 a schematic representation in the form of an exploded view for the layer structure a) on a machining cylinder equipped with a machining tool designed as a die and b) on a machining cylinder equipped with a machining tool designed as a matrix in a first embodiment; Fig. 4 a schematic representation in the form of an exploded view for the layer structure a) on a machining cylinder equipped with a machining tool designed as a matrix and b) on a machining cylinder equipped with a machining tool designed as a matrix in a second version.

[0020] A processing unit 01 comprises a first processing cylinder 02 and a second processing cylinder 03 cooperating with it, between which a planar substrate S, e.g., web-shaped or preferably arc-shaped, can be guided to undergo mechanical processing. The processing unit 01, designed, for example, as an embossing unit 01, can be part of a self-contained machine solely concerned with mechanical processing and, in this case, has an inlet feed system 04 for the substrate S, which is not described in detail here. At least one processing tool 06; 07, assigned to the respective processing cylinder 02; 03, is detachably arranged or can be arranged on at least one, preferably both, of the processing cylinders 02; 03, e.g., embossing cylinder 02; 03, in the form of a lift 06; 07.Such machining tools 06; 07, which can be detachably arranged on a machining cylinder 02; 03, are often also referred to as so-called clichés.

[0021] In an advantageous embodiment, in which at least one processing unit 01 is part of a sheet-processing and / or processing machine, in particular a sheet-fed printing machine with one or preferably several coating units 08, e.g. printing units 08, this includes the feeding system 04 for the substrate S to be fed, which is also referred to as feeder 04.

[0022] The term substrate S refers in particular to web- or sheet-shaped workpieces made of paper, cardboard, corrugated board, plastic, or the like, which are preferably printable or are printed. In the case of a sheet-shaped substrate S, it is present as a stack in the feeder 04 of the sheet-fed printing press and is separated by the feeder and fed, e.g., via an acceleration system, to the printing unit(s) 08 downstream of the feeder 04 and, if applicable, to further units, e.g., one or more coating units formed by coating units. For example, offset printing units 08 are provided as printing units 08. The at least one mechanical processing unit 01 is preferably located downstream of the printing units 08 and can be located upstream or downstream of a coating unit, if provided. In an advantageous embodiment, a die-cutting unit 09 can be located downstream of the embossing unit 01, by which, for example, individual blanks are die-cut from the flat substrate S.

[0023] In an alternative configuration to the sheet-feeding and / or processing machine, the machine comprising at least one mechanical processing unit 01 can also be designed as a web-feeding and / or processing machine, in particular as a rotary printing machine with one or more printing units and an in-side roll unwinder, at least up to the mechanical processing stage.

[0024] The two machining cylinders 02; 03 of the machining unit 01 are, for example, rotatably mounted at their ends in or on one- or multi-part frame walls 11. They can be mechanically coupled, for example, via gears 12; 13, and driven together by a main drive of the machine, e.g., via a so-called longitudinal shaft, or, for example, driven in pairs by a drive motor assigned solely to the machining unit 01 (not shown here). In an advantageous embodiment, the two machining cylinders 02; 03 can also be driven by individual drives. The first and / or the second machining cylinder 02; 03 can carry a machining tool 06; 07 on its cylindrical surface, extending across the working width and / or a section length, or—as exemplified in Fig. 2 indicated - several processing tools 06; 07 relating to the working tool can be positioned side by side and / or one behind the other across the working width and / or across the section length. The working width here refers to the width of the processing cylinder 02; 03 on which a substrate S can be processed or is processed by the appropriately equipped processing cylinder 02; 03, and the section length refers to the circumferential length over which uninterrupted processing of the substrate S can be carried out without repetition.

[0025] The at least one machining tool 06; 07 is held or is to be held on the cylinder body of the respective machining cylinder 02; 03 by magnetic forces. In particular, the respective machining tool 06; 07 is held on the circumference of the machining cylinder 02; 03 at least in the circumferential and / or axial direction exclusively by magnetic forces, i.e. without a positive locking or effective stop means that would oppose movement in the circumferential and / or axial direction.

[0026] For this purpose, the first and / or second machining cylinder 02; 03 is designed as a so-called magnetic cylinder with a magnetically effective cylinder body, i.e., with a cylinder body that exerts a magnetic force on adjacent magnetic or magnetizable components. The magnetically effective cylinder body of the machining cylinder 02; 03 can have a continuous metallic surface, e.g., made of magnetizable and / or ferromagnetic steel, in the area of ​​its outer surface intended for receiving machining tools 06; 07. On the inner surface of this surface, inside the cylinder, rows and / or slots of magnets that magnetize the outer surface are arranged. Alternatively, it can have a pattern of magnets around its circumference, which are arranged, for example, between axially and / or circumferentially extending metallic webs and are ground on their outwardly facing side to form an outer contour that continues or defines the cylindrical outer surface.In both cases, a smooth cylindrical surface is formed from a metallic or metal-containing and / or magnetic material, e.g., a respective metallic and / or magnetic alloy, whereby the surface is formed either as a continuous metallic surface, for example, made of steel, or heterogeneously by steel and magnetic surface components.

[0027] In principle, the machining tools 06; 07 arranged on the first and second machining cylinders 02; 03 can be identical, particularly with regard to their shaping effect on the substrate S. Alternatively, only one of the two machining cylinders 02, 03 could be equipped with at least one machining tool 06; 07 that shapes the substrate S, while the other machining cylinder 03; 02 has a smooth, i.e., unstructured, surface in the area of ​​its effective outer circumference – e.g., directly on its cylindrical surface or on an outer surface of a lift mounted on it – which merely serves as a support for the machining tool 06; 07.

[0028] Preferably, the machining tools 06 and 07 arranged on the first and second machining cylinders 02 and 03 are designed to be complementary to each other with respect to their respective working elements 16 and 17. For example, a first machining cylinder 02 and 03 carries a first type of machining tool 06 in the form of a die 06, and the other machining cylinder 03 and 02 carries a second type of machining tool 07 in the form of a male die 07, or vice versa. In the case of embossing, the embossing tool 07 formed by the male die 07 comprises, as working elements 17, embossing elements 17 in the form of projections 17 emerging from a base surface. The die 06, as the complementary embossing tool 06, comprises, as working elements 16, embossing elements 16 in the form of recesses 16 corresponding to the projections 16.

[0029] The configuration described here and below, based on the preferred embodiment of an embossing unit or a machining unit 01 designed as an embossing unit 01, is also applicable in principle to machining cylinders used in other mechanical machining applications, such as blanking or punching, provided that machining tools in the form of lifts, which are detachably held or to be held by magnetic forces on machining cylinders, in particular on magnetically effective cylinder bodies encompassed by them, are also used there. Corresponding machining tools 06; 07 can, for example, be formed by a punch having cutting edges as working elements on the one hand and a flat counter surface or a die designed with corresponding cutting grooves as working elements on the other. In particular, these can each be punching tools – not shown here – of a possibly stand-alone or integrated unit.The inline machine shall be equipped with a stamping unit 09 with appropriately designed and corresponding stamping elements. The introduction of creasing lines, i.e., creasing, by appropriately designed processing tools 06; 07, which are to be attached to the respective processing cylinders 02; 03 in the manner described above, shall also be included in a broader sense under the term embossing with correspondingly linear embossing elements 16; 17.

[0030] In the case of a processing unit 01, in particular an embossing unit 01, which processes an arc-shaped substrate S, one of the processing cylinders 03 preferably acts simultaneously as a transport cylinder and is equipped with an arc-holding system, e.g., a clamping gripper system or a suction gripper system, to receive arc-shaped substrate S coming from upstream and to convey it between the two processing cylinders 02 and 03. Preferably, such a processing cylinder 03, acting as a transport cylinder, carries one or more processing tools 07 in the form of one or more dies 07, and the other processing cylinder 02 carries one or more processing tools 06 in the form of one or more matrices 06.

[0031] The machining tool 06; 07, which is held by magnetic force on the respective machining cylinder 02; 03 or on its magnetically effective cylinder body, comprises at least one support layer 14, e.g., a support plate 14, made of a metallic or metal-containing material, in particular a ferromagnetic material or a material mix or structure containing such a ferromagnetic material. This metallic or metal-containing support layer 14 provides the machining tool 06; 07 with, for example, dimensional stability and / or can already be shell-shaped with a radius of curvature suitable for contact with the cylinder's outer surface. The metallic or metal-containing support layer 14 carries on its outwardly facing side – indirectly or directly – the machining elements 16; 17, in the case of a male die 07 for embossing, the projections 17, and in the case of a female die 06, the corresponding recesses 16.The active elements 16; 17 can be placed directly in or on the outwardly facing surface of the metallic or metal-containing carrier layer 14 - for example by mechanical processing such as lasers or milling, by chemical.

[0032] The functional elements 16 and 17 can be formed by etching processes or by injection molding the substrate 14 under high pressure. Alternatively, they can also be formed by material deposition using additive manufacturing processes, such as stereolithography, laser beam melting, electron beam melting, fused deposition modeling, 3D printing, or thermal transfer sintering, on the outer surface of the metallic or metal-containing substrate 14. Alternatively, the relevant functional elements 16 and 17 can also be provided indirectly on an outwardly facing side of a functional layer applied directly or indirectly to the outer surface of the metallic or metal-containing substrate 14.

[0033] In the following and in the schematic figures Fig. 3 and Fig. 4 does not differentiate between the case where the active elements 16; 17 are provided directly in or on the carrier layer 14, or in or on an additional functional layer applied directly or indirectly to the carrier layer 14.

[0034] To prevent slippage of the machining tools 06; 07 held by magnetic force on the metallic or metal-containing outer surface of the cylinder body encompassed by the respective machining cylinder 02; 03, it is or will be - fundamentally independent of the aboveThe manner in which the active elements 16; 17 are applied to the outside of the metallic or metal-containing carrier layer 14 - a friction-enhancing measure is provided between the side of the metallic or metal-containing, in particular ferromagnetic, carrier layer 14 of the mechanical processing tool 06; 07 facing the outer surface and the metallic and / or magnetic outer surface of the magnetically effective cylinder body, in particular a friction-enhancing, preferably non-metallic layer 18 is arranged or introduced between the metallic inner surface of the processing tool 06; 07, in particular embossing tool 06; 07, and the metallic and / or magnetic outer surface of the cylinder body encompassed by the processing cylinder 02; 03, in particular embossing cylinder 02; 03.

[0035] The friction-enhancing layer 18 preferably has a thickness of no more than 1,000 µm (one thousand micrometers), preferably no more than 500 µm. Preferably, it is at least 25 µm. Such a small thickness is sufficient, on the one hand, to accommodate the smallest irregularities in the metallic and / or magnetic surface and thereby maximize the contact area with the cylinder shell. On the other hand, it is not so large as to significantly weaken the magnetic forces between the surface of the magnetically active machining cylinder 02; 03 and the metallic or metal-containing carrier layer 14 of the machining tool 06; 07. If both types of machining tools 06; 07 are arranged or are to be arranged on the cylinder body of the respective machining cylinder 02; 03 via such a layer 18, the layers 18 for the two machining tools 06; 07 approximately equally strong, i.e.formed with a maximum tolerance of 10%, preferably no more than 5% of the potentially larger layer thickness.

[0036] Layer 18 is formed from a plastic – e.g., a rubber-like material – in particular an elastomer, or from a material mix or structure containing plastic, in particular an elastomer, as a component. Preferably, layer 18 is formed as a polymer layer 18, in particular by a photopolymer, or at least comprises one.

[0037] To ensure good adaptation to any unevenness that may be present, the material - especially at least on the side of layer 18 facing the cylindrical surface - preferably has a modulus of elasticity of less than 1.0 GPa, preferably less than 0.1 GPa, under normal conditions (20° C, 101325 Pa).

[0038] Instead of or preferably in addition to the above-mentioned properties of layer 18 and / or properties of the material, the material forming layer 18 – at least on the side facing the cylinder shell – is such that, under normal conditions, the material pairing of the material with a dry ground steel surface of a roughness Ra of 0.8 to 0.9 µm, in a planar arrangement at a surface pressure of 5 N / mm² 2 determined to have a coefficient of static friction µ of at least 0.3, preferably at least 0.5.

[0039] In a preferred embodiment, the layer 18 is applied directly or indirectly to the inner side of the support layer 14 facing the cylindrical surface – in particular by forming a material bond with the support layer 14 (see e.g. Fig. 3) is preferably applied as a liquid or at least flowable material and is subsequently dried or cured. Application in liquid or flowable form allows the material to penetrate even the smallest irregularities and therefore ensures good adhesion. Depending on the material, curing or drying can occur, for example, solely through exposure time without any drying agents or with agents that support or initiate the drying process. In a preferred embodiment of layer 18, which consists of or comprises a photopolymer, in particular a photopolymer resin, drying or curing is carried out, for example, by irradiation with electromagnetic radiation, in particular by UV irradiation.

[0040] In an advantageous method for providing a processing tool 06; 07 coated on its inner surface with layer 18, the layer 18 is applied to the inner surface in liquid or flowable form as a coating 18 and smoothed to the desired thickness using a doctor blade. If the layer 18 is formed by or encompassed by a photopolymer, drying or curing is subsequently carried out by means of irradiation. Otherwise, drying or curing can also be achieved by evaporation of the solvent, e.g., by waiting and / or thermally assisted drying.

[0041] In a preferred manner for providing a machining tool 06; 07 provided on the inside with layer 18, the layer forming layer 18 is or is formed, e.g., in the form of a coating 18, and preferably by photopolymer, in particular photopolymer resin, e.g., a 3D printing material from Tango. ® -series by Stratasys ® , formed or containing such material, e.g., over the entire surface - preferably in liquid or at least flowable form - for example in the form of a filament, in a 3D printing process, in particular in a 3D Polyjet process, applied to the inside, i.e., the side of the machining tool 06; 07 or its support layer 14 facing the cylindrical surface in the equipped state, and subsequently - e.g., immediately after application - dried or hardened by irradiation, in particular UV irradiation.

[0042] The printing of the inner surface can be achieved, for example, by fixing the self-supporting carrier layer 14 or carrier plate 14 – which may already have the active elements 16; 17 or a functional layer supporting the active elements 16; 17 on its outer surface – in a 3D printer and printing and drying it there in the manner described above. The mounting can be achieved on a magnetic holder, which holds the metallic or metal-containing carrier plate 14 from its outer surface.

[0043] The machining tool 06; 07, thus provided and having the friction-enhancing layer 18, is then brought to the desired position on the cylindrical surface of the magnetically effective cylinder body of the machining cylinder 02; 03 during the setup of the machining cylinder 02; 03 - if necessary using a positioning aid - and held there by magnetic force.

[0044] The material forming layer 18 can, in principle, be applied directly to the substrate layer 14, regardless of the method of application. However, a primer promoting the metal / plastic bond can also be applied to the metallic surface of the substrate layer 14 or between the adhesion-enhancing layer 18 and the substrate layer 14.

[0045] Alternatively, the layer 18 can be formed as a film or applied to a film 19, e.g., a plastic film 19, and during the setup process, it can be inserted as such or together with the film 19 between the processing tool 06; 07 and the outer surface of the magnetically effective cylinder body of the processing cylinder 02; 03 in question (see e.g. Fig.4) Alternatively, the produced or coated film 19 can be applied to the inside of the machining tool 06; 07 – in particular with its uncoated side – before the cylinder body is loaded, using, for example, an adhesive, in a material-bonded manner. In both cases, the layer 18 – e.g., on a non-adhesive or poorly adhesive substrate – can be formed into a film itself using a squeegee or a 3D printer from a material mentioned above, or it can be formed on a film 19 in the form of a coating 18. Reference symbol list 01 Machining unit, embossing unit 02 Machining cylinders, embossing cylinders 03 Machining cylinders, embossing cylinders 04 Feeding system, feeder 05 - 06 Machining tool, lift, die, embossing tool 07 Machining tool, lift, die, embossing tool 08 Coating plant, printing plant, offset printing plant 09 Stamping Plant 10 - 11 Frame wall 12 gear 13 gear 14 Carrier layer, carrier plate 15 - 16 Active element, embossing element, recesses 17 Active element, embossing element, elevation 18-layer polymer layer coating 19 Foil, plastic film S substrate QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 3 749 523 A2

[0007]

Claims

[1] Machining cylinder (02; 03) for the mechanical machining of web- or arc-shaped substrates (S) with a cylindrical body which exerts a magnetic force on adjacent magnetic or magnetizable elements in the region of its periphery and carries on its outer surface one or more machining tools (06; 07) in the form of one or more lifts (06; 07) which are held detachably by magnetic forces, wherein the machining tool (06; 07) carries on its outer surface working elements (16; 17) for the mechanical machining of the substrate (S) and has at least one metallic or metal-containing support layer (14) made of or with a ferromagnetic material, characterized by , that a friction-enhancing layer (18) is arranged or introduced between the metallic or metal-containing support layer (14) and the metallic and / or magnetic outer surface of the magnetically effective cylindrical body. [2] Machining cylinder according to claim 1, characterized by , that the layer (18) is formed from a plastic or from a material mix or structure containing plastic as a component and / or is formed by an elastomer or comprises an elastomer and / or is formed as a polymer layer (18) and / or by a photopolymer or at least has one. [3] Machining cylinder according to claim 1 or 2, characterized by , that the material forming the layer (18) at least on the side facing the cylindrical body's outer surface, in the material pairing with a dry ground steel surface of a roughness Ra of 0.8 to 0.9 µm, in a planar arrangement at a surface pressure of 5 N / mm 2 Determined under normal conditions (20°C, 101325 Pa), it has a coefficient of static friction µ of at least 0.

3. [4] Machining cylinder according to claim 1, 2 or 3, characterized by, that the material forming the layer (18) at least on the side facing the lateral surface of the cylindrical body has an elastic modulus of less than 1.0 GPa under normal conditions (20° C, 101325 Pa). [5] Machining cylinder according to claim 1, 2, 3 or 4, characterized by , that the material forming the layer (18) is applied and / or arranged on the side of the support layer (14) facing the lateral surface of the cylindrical body. [6] Machining cylinder according to claim 1, 2, 3 or 4, characterized by , that the layer (18) itself forms a film or is applied to a film (19) which, in the assembled state of the processing tool (06; 07), is arranged between the cylindrical surface and the carrier layer (14) or is applied and / or arranged in a materially bonded manner on the side of the carrier layer (14) facing the cylindrical surface of the cylinder body. [7] Machining cylinder according to claim 5 or 6, characterized by, that the layer (18) is formed as a material print of a 3D printer and / or as a liquid or flowable material layer applied and dried. [8] Machining cylinder according to claim 1, 2, 3, 4, 5 or 6, characterized by , that the processing cylinder (02; 03) is designed as an embossing cylinder (02; 03) and that at least one processing tool (06; 07) is formed by an embossing tool (06; 07) designed as a die (06) or patrix (07). [9] Machine for processing and / or machining of arc- or web-shaped substrate (S) with a machining unit (01) for mechanically machining the substrate (S), which has a first and a second machining cylinder (02; 03) between which a web- or arc-shaped substrate (S) can be passed in order to subject it to mechanical machining during the passage, characterized bythe embodiment of at least one of the two processing cylinders (02; 03) according to a processing cylinder (02; 03) according to one of claims 1 to 8. [10] Machine according to claim 9, characterized by , that the processing unit (01) is preceded by one or more printing units (08) and / or a punching unit (10) for punching out individual blanks from the substrate (S) and / or a stripping unit for stripping out punched blanks or remnants is subordinate. [11] Machine according to claim 9 or 10, characterized by, that both the first and the second machining cylinder (02; 03) according to a machining cylinder (02; 03) according to claims 1 to 8 is designed with the provision that one of the two machining cylinders (03; 02) carries on its magnetically effective cylinder body a first type of machining tool (07) in the form of a die (07) or a punch and the other of the two machining cylinders (02; 03) carries on its magnetically effective cylinder body a second type of machining tool (06) in the form of a die (06) or a flat counter surface. [12] Method for equipping a machining cylinder (02; 03), in particular for equipping a machining cylinder (02; 03) according to any one of claims 1 to 8, wherein the machining cylinder (02; 03) comprises a magnetically effective cylinder body which exerts a magnetic force on adjacent magnetic or magnetizable elements in the region of its periphery and is equipped for an upcoming operation in the region of its outer surface with at least one machining tool (06; 07) which has a metallic or metal-containing support layer (14) made of or with a ferromagnetic material and is thereby held on the magnetically effective cylinder body by magnetic forces, characterized by , that a friction-enhancing layer (18) is provided between the metallic or metal-containing support layer (14) and the outer surface of the magnetically effective cylindrical body. [13] Method according to claim 12, characterized by, that the layer (18) is applied to the inside, i.e. to the side facing the cylindrical surface, of the machining tool (06; 07) in the form of a filament by a 3D printer or by a squeegee before the magnetically effective cylindrical body is fitted with the machining tool (06; 07). [14] Method according to claim 12, characterized by, that the layer (18) is applied to a film (19) in the form of a filament by a 3D printer or by a squeegee before the magnetically effective cylinder body is fitted with the processing tool (06; 07), and before the cylinder body is fitted with the processing tool (06; 07) the film (19) provided with the layer (18) is applied to the inside, i.e. the side facing the cylindrical surface, of the processing tool (06; 07) in a material-bonded manner or is introduced between the cylindrical surface of the magnetically effective cylinder body and the inside, i.e. the side facing the cylindrical surface, of the processing tool (06; 07) when the magnetically effective cylinder body is fitted. [15] Method according to claim 12, 13 or 14, characterized by, that the layer (18) is formed from a plastic or a plastic-comprising material and / or from an elastomer or an elastomer-comprising material and / or from a polymer or a polymer-comprising material and / or from a photopolymer or a photopolymer-comprising material.

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