Roller with suction air openings for machine for processing and / or processing sheets, and machine for processing and / or processing sheet-like substrates using such roller

Abstract

The invention relates to a drum (26; 26 ') for a machine (01) for processing and / or processing sheets. 17; 152; 152; 12) comprising a holding mechanism (33) on the circumference, in which the drum (26; 17; 152; 152; 12) of a substrate sheet (02) to be fed, with its front end being accommodated by the holding mechanism, and when the drum (26; 17; 152; 152; 12) is held or can be held during rotation in a rotational angle range between the receptacle of the substrate sheet (02) and the downstream feed-out thereof, and the drum has a rotary passage (123), which comprises: a rotary passage (123) which is connected to the drum (26; 17; 152; 152; 12), which rotor is arranged in a rotationally fixed manner on the end side between the end-side drive drum (26; 17; 152; 152; 12) or is arranged on a lateral shaft end of a shaft (32) of the drum (26; 12) or on an end-side drum journal (128), and a stator (126) which does not rotate depending on the operating situation, 17; 152; 152; 12) or a group of suction openings (42) on the circumference of the drum (26; 17; 152; 152; 12) can be subjected to a low pressure during the passage of an effective rotational angle phase about its axis of rotation (R), and wherein the rotational feedthrough (123) can be adjusted with respect to the size of a passage angle sector ([Delta] [phi]), which determines the size of the effective rotational angle phase, and / or with respect to the position of the passage angle sector ([Delta] [phi]), which determines the position of the effective rotational angle phase.

Description

Technical Field

[0001] The invention relates to a drum of a machine for processing and / or treating single sheets of paper having suction air openings according to the preamble of claim 1 or 15 and to a machine for processing and / or treating single sheet-like substrates using such a drum. Background Art

[0002] DE 10 2018 212 429 B4 discloses a printing press having a screen printing unit and a device for aligning magnetic or magnetizable particles contained in a printing ink or lacquer, wherein the device has a cylinder having a plurality of elements that induce a magnetic field on the circumference, which are arranged in a plurality of axially adjustable annular elements. The annular elements have suction air openings at the level of the cylinder envelope ends, which are used to hold the fed individual sheets and are connected or can be connected to a low-pressure line or a low-pressure source via a rotating feedthrough.

[0003] DE112012006348B4 relates to a combined printing press and in particular discloses a magnet cylinder having suction openings on the circumference of a rotating cylinder outer body, the suction openings being loaded with suction air from an air chamber located inside and covering a certain angular range when the angular range is swept during rotation. The air chamber is bounded by two partition strips fixedly mounted on an inner shaft and extending in the axial direction.

[0004] DE102012220401B4 discloses a conveying drum for conveying printed sheets, which has an inner tube and an outer tube coaxially arranged on the inner tube and rotatably arranged on the inner tube, and the outer tube is provided with suction openings on the circumference. An intermediate tube that can be displaced relative to the inner tube at a limited rotation angle is arranged coaxially with the torsion-proof inner tube and between the inner tube and the rotatable outer tube, wherein the intermediate tube surrounds the shell surface of the inner tube with its inner wall. The intermediate tube has at least one groove in the circumferential direction, which extends along only a part of the circumference of the inner tube or the intermediate tube, and by twisting the intermediate tube, its position in the circumferential direction is changed, thereby changing the position of the angular range for the suction air to pass through.

[0005] DE 1917795 A relates to a conveying device for sheet-like objects operated by suction air, in which a roller shell provided with radial channels is rotatably supported in the manner of a rotary valve on an inner stator, which has a suction line in its interior which is permanently connected to a suction air source.

[0006] DE 10 2014 001 969 B4 relates to a device for changing the format of a sheet transport drum, which device has an outer sleeve with a pneumatic nozzle channel and an inner sleeve with a cover segment for covering the nozzle channel according to the format. Summary of the invention

[0007] The object of the invention is to provide a cylinder for sheet-forming and / or processing machines having suction air openings and a machine for processing and / or treating sheet-shaped substrates using such a cylinder.

[0008] According to the invention, this object is achieved by the features of claims 1 and 15 , respectively.

[0009] Advantages that can be achieved with the invention include, for example, that the transport of individual sheets on the drum can be carried out particularly precisely and / or safely, in particular without the possibility of uncontrolled movement of the individual sheets. This is achieved by suction towards the drum in at least one angular phase.

[0010] It is particularly advantageous that the sheet transport, in particular the receiving from and / or the handing over to other sheet feed mechanisms, can be optimized. This can be achieved in particular by making it possible to change the rotational phase angle at least within certain limits in terms of its position and / or size about the rotation axis of the drum by means of activated suction openings, i.e. by means of applied negative pressure.

[0011] The rotary leadthrough, which can be arranged in a rotationally fixed manner, preferably at the end on the shaft of the drive drum or on the drum journal at the end, makes complex drum mounting and / or adjustment mechanisms unnecessary and / or allows retrofitting of existing drums.

[0012] According to the invention, the drum of the machine for processing and / or treating single sheets of paper comprises a holding mechanism on the circumference, the substrate single sheet to be fed on the drum is held by the holding mechanism at its front end and is held or can be held while the drum rotates within the angular range between the holding portion for the substrate single sheet and its downstream delivery portion, and the drum has a rotating through-portion, through which the suction openings arranged on the circumference of the drum can be loaded with low pressure while the drum passes through an effective and / or defined angular phase, in particular when low pressure is loaded on the inlet side and / or a suction air source is connected, wherein the rotating through-portion is adjustable at least with respect to the size of the angular sector that determines the size of the effective angular phase and / or with respect to the position of the angular sector that determines the position of the effective angular phase.

[0013] With regard to high precision and / or good adjustability in the processing and / or treatment of substrates, in particular in the generation of optically variable elements, advantageous are solutions having an angular phase that is variable in position and / or size or a passage angle sector that is variable in position and / or size, in combination with a clamping device for fixing the annular element, also described below, and / or with an embodiment of the magnetic and suction elements as a structural unit and / or with the movability of individual or all magnetic elements in the axial and / or circumferential direction, also described below, and / or with a clamping device for clamping the magnetic element or the structural unit, also described below.

[0014] In a preferred embodiment, the drum is designed as a magnet drum and comprises a plurality of, for example, n×m (where n, m∈ N) magnet elements in a matrix-like manner in its outer circumferential region, the magnet elements being arranged in rows extending parallel to the axis and in columns extending in the circumferential direction, and the drum comprising a suction element with suction openings pointing outward. In an advantageous refinement, a plurality or all of the magnet elements in the columns extending in the circumferential direction are arranged at or on corresponding, open or closed, annular support elements received on the drum shaft, wherein the annular support element comprises a plurality of chambers one behind the other viewed in the circumferential direction, which chambers are each independently connected to the rotor of the rotating through-hole via corresponding pipeline paths on the one hand and to at least one group of circumferentially open suction openings on the other hand.

[0015] According to the invention, a machine for processing and / or treating, in particular single-sheet substrates comprises: a substrate reservoir, for example in the case of a starting substrate which may be in web form, for example comprising a cross-cutter, at least one printing mechanism, by means of which a substrate guided through the machine on a transport path is printed in a matrix-like manner on at least a first side and / or can be printed with m columns and / or n rows of printed sheets, a product receiving section, by means of which the processed substrates can be brought together in an aggregate, and at least one transport roller arranged in the substrate path between the substrate reservoir and the product receiving section, the transport roller being constructed in the above-described manner with a suction opening and a rotating through-section which is connected to the suction opening by a pipeline.

[0016] Further details and implementation variants can be derived from the exemplary embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Exemplary embodiments of the invention are shown in the drawings and are described in more detail below.

[0018] in:

[0019] Figure 1 An embodiment of a machine for producing optically variable picture elements on a substrate is shown;

[0020] Figure 2 Schematic diagram showing a substrate printed with an optically variable coating medium in a printing element, wherein a) the state in which the magnetic or magnetizable particles have not yet been oriented is shown, and b) the state after the imaged portions have been aligned, here exemplified in the form of the number "1";

[0021] Figure 3 A schematic diagram showing a printing and downstream alignment process using an imaging printing cylinder and a cylinder with a magnetic element, showing by way of example a substrate sheet widening in a trapezoidal manner at the rear end;

[0022] Figure 4 An embodiment of a magnet drum is shown in perspective view;

[0023] Figure 5 A separate view of a carrier element is shown which is provided with, for example, a plurality of magnet elements one behind the other in the circumferential direction;

[0024] Figure 6 A cross-sectional view of a carrier element equipped with a magnetic element is shown, but with Figure 5 Compared to is a narrower implementation;

[0025] Figure 7 Show according to Figure 4 A partial view of a longitudinal section of a drum;

[0026] Figure 8 An embodiment of a valve for selectively opening and closing a suction air opening is shown;

[0027] Fig. 9 An embodiment of an active unit comprising a magnet element and a suction element is shown in a less complex embodiment;

[0028] Fig.10 Show according to Fig. 9 A top view of the active unit, but without the magnet and the housing;

[0029] Fig.11 shows a section through an exemplary embodiment of an active unit comprising a magnet element and a suction element, wherein the suction element has a recognizable adjustment mechanism for axial adjustment of the magnet element;

[0030] Fig.12 A sectional view of an exemplary embodiment of an active unit comprising a magnetic element and a suction element, the active unit having a recognizable adjustment mechanism for adjusting the magnetic element in the circumferential direction;

[0031] Fig.13 A perspective view showing an assembly aid for installing or removing and / or positioning an action unit;

[0032] Fig.14 Shown with Fig.13 A perspective view of an active unit of an installed assembly aid arranged on a ring element;

[0033] Fig.15 A perspective view showing the inner body of a drum equipped with 6 annular elements;

[0034] Fig.16 A sectional view of a drum having a drum inner body, a ring-segment-shaped support element arranged on the drum inner body, and, for example, ten active units arranged on the support element;

[0035] Fig.17 an enlarged partial view showing a fixing device for a load-bearing element;

[0036] Fig.18 showing details of the fixing means for the load-bearing element;

[0037] Fig.19 A perspective view of a front connection element for a drum with a rotating lead-through for a stator that does not rotate in operation;

[0038] Fig. 20 Show according to Fig.19 The part of the rotating through-portion that does not rotate according to the operation situation has a shaft extending outwardly;

[0039] Fig.21 Show Fig. 20 An enlarged section of a stator of a rotating feedthrough designed in two parts;

[0040] Fig. 22 A perspective side view of a connection element with a rotary leadthrough for a drum having an adjustment mechanism for adjusting a stator is shown. DETAILED DESCRIPTION

[0041] A machine 01, in particular a security machine 01, for example a printing press 01, in particular a security printing press 01, preferably for producing optically variable image elements 03 on a substrate 02, for example a web-shaped or sheet-shaped printing material 02, which is capable of processing and / or processing a web-shaped or in particular sheet-shaped substrate 02, comprises, for example: a coating device 04, for example a printing mechanism 04, by means of which an optically variable coating medium 06, for example an optically variable printing ink 06 or a lacquer 06, can be applied to at least a first side of the substrate 02, for example a printing material 02, over the entire surface or in partial areas in the form of printed image elements 08; and a device 07 for aligning particles P contained in the optically variable coating medium 06 applied to the substrate 02 and responsible for generating the optical variability (see, for example, Figure 1). The device 07 will also be referred to below as an alignment device 07 or, because the alignment device realizes the imaging of an optically variable pattern or motif by aligning the particles P in a defined manner, also referred to as an imaging alignment device 07. For example, a coating medium 06 containing particles P is applied to a printing material 02 and a picture element 03 is obtained by subsequently imaging the previously randomly oriented particles P, for example in Figure 2 This is schematically shown in FIG. 1 using the number “1”. In this case, a) represents a state in which the coating medium 06 has been applied and is still oriented randomly, for example, and b) represents a state in which image-wise alignment has already taken place.

[0042] The printed elements 08 consisting of the variable coating medium 06 applied to the substrate 02 by the coating device 04 before processing by the alignment device 07 can correspond in size and position to the optically variable elements 03 to be produced or can be larger than these elements and, if necessary, even extend over the surface of multiple printed sheets 09. In the case of larger printed elements 08, for example, the optically variable elements 03 are not produced by alignment over the entire surface coated with the optically variable coating medium 06.

[0043] As particles P responsible for generating the optical variability, magnetic or magnetizable non-spherical particles P, for example pigment particles P, also referred to below as magnetic flakes, are contained in the coating medium 06 , for example printing ink 06 or lacquer 06 .

[0044] The machine 01 is preferably used for producing printed sheets 09, for example securities 09, in particular banknotes 09. This includes in particular the production of intermediate securities, for example the production of a printing material 02 in the form of a web-like or sheet-like printing material section 02, in particular a printing material sheet 02, with a printed image of a plurality of securities 09. The substrate 02 can be formed, for example, from a paper based on cellulose or preferably on a cotton fiber base or containing at least cellulose or cotton fibers, from a synthetic material polymer or from a mixed product of the above materials. The substrate can be present in the above-mentioned coating device 04 before coating or can already be coated, the substrate can be unprinted or can already be printed once or multiple times in one or more upstream processes or mechanically processed in another way. On a printing material section 02 formed by a longitudinal section of a web-like substrate 02 or by individual sheets of a sheet-like substrate 02, a plurality of printed sheets 09, for example banknotes 09 to be produced or printed images thereof, can preferably be arranged in a matrix-like manner in rows extending transversely to the transport direction T adjacent to one another and in columns extending in the transport direction T, or can be arranged during the processing of the substrate 02 (for example during Figure 2 and Figure 3 ).

[0045] The machine 01 designed as a printing machine 01 can in principle comprise one or more printing units 04 of any desired printing method. However, in the embodiment shown here, for the sake of simplicity, the machine comprises a printing unit 04, in particular a printing unit 04 operating according to a flexographic printing method or preferably according to a screen printing method, by means of which an optically variable coating medium 06 is applied or can be applied to a first side of a printing material 02. By means of the printing method mentioned, in particular the screen printing method, for example, greater layer thicknesses can be applied compared to other printing methods. The expression "first side" of the substrate 02 or the printing material 02 is optional and is used to indicate the side of the printing material 02 on which the optically variable coating medium 06 to be processed is applied downstream by the alignment device 07 or has been applied or can be applied.

[0046] In the illustrated and preferred embodiment, the printing press 01 comprises a substrate reservoir 13, preferably designed as a sheet feeder 13, wherein the substrate 02, for example, designed as a sheet of paper-like printing material 02, is conveyed or can be conveyed, if necessary, via another printing or processing unit to at least one printing mechanism 04, for example a flexographic printing mechanism or preferably a screen printing mechanism 04, which applies an optically variable coating medium 06, and which forms a printing area 11 for printing, for example, a first side of the printing material 02 between a printing mechanism cylinder 14, in particular a plate cylinder 14, for example a screen printing cylinder 14, and a common cylinder, for example an impression cylinder 17 (see, for example, Figure 1 ).

[0047] Preferably, the printing unit 04 comprises a plate cylinder 14 as an imaging cylinder, which has a plurality of, in particular similar and / or identical, imaging printing elements 18, also referred to below as printing motifs 18, or in particular similar and / or identical groups of imaging printing elements 18 or printing motifs 18 arranged on the circumference, which are arranged over a circumferential length corresponding to the length of the printed image, for example in a plurality of, for example four to eight, in particular five to seven, for example six, columns spaced apart from one another transversely to the transport direction T, and over a cylinder width corresponding to the width of the printed image in a plurality of rows spaced apart from one another in the transport direction T. In the case of a printing unit 04 operating according to flexographic printing, these printing motifs 18 are designed in the form of relief reliefs and in the preferred case of a printing unit 04 operating according to screen printing, in the form of an offset stencil.

[0048] The printing material 02 of the alignment device 07 can be transported by the printing unit 04 to which the optically variable coating medium 06 is applied via a feed mechanism, for example one or more feed mechanisms 12 designed as transport rollers 12. In the case of a web-shaped printing material 02, the feed mechanism can be formed by one or more positively driven and / or non-driven rollers.

[0049] After passing through the alignment device 07 described in detail below, the printing material 02 can be fed directly or via other feeding mechanisms, such as another other transport roller, such as the second feeding device 21, and fed via the second feeding device 21 to a product receiving section 22 for receiving the printing material 02 processed and / or handled in the machine 01, and in the case of sheet-shaped printing materials 02, to a stacking delivery device 22. For the preferred case of sheet-shaped printing materials 02, a mechanism for feeding individual sheets, such as one or more transport rollers or transport drums, or a feeding device 21, such as a gripper revolving feeder 21, as shown here, is provided as a feeding mechanism, by which the individual sheets 02 of the printing material are transferred from the transport path sections of the alignment device 07 via one or more additional transport rollers as necessary and are, for example, fed to a stacking delivery device 22.

[0050] On the transport path away from the alignment device 07, there is at least one drying device, such as a radiation dryer 23, with one or more dryers 23 directed toward the first side of the printing material 02, and optionally a cooling device (not shown), such as a cooling roller. In a modified embodiment, an inspection device, such as a sensor device 153, such as a camera 153, especially a line scan camera 153, which cooperates with a cylinder 152, such as a transport cylinder 152, especially an inspection cylinder 152, is arranged on the transport path between the alignment device 07 and the stacking delivery device 22.

[0051] In an advantageous refinement, the printing mechanism 04 and the alignment device 07 can be, for example, in the form of a module, structurally combined to form a device 16 for generating optically variable image elements. For example, such a printing mechanism can be arranged in a multiple ID in the machine 01 one after the other in a refinement. In an advantageous embodiment in the form of a module, the device 16 is inserted or can be inserted into the transport path of the machine 01 with interfaces on the input side and the output side of the corresponding interfaces of the feed system continuing upstream and downstream.

[0052] The alignment device 07 explained in greater detail below is in principle arbitrary in its design, design variants or configuration, but is preferably provided or can be provided in the above-described machine 01 or printing press 01 .

[0053] An alignment device 07 for forming optically variable elements 03, for example for forming optically variable effects in an optically variable coating medium 06 previously applied to a substrate 02, in particular a printing material 02, for example in the form of printed elements 08, comprises a defined transport path, along which the substrate 02 to be fed by the alignment device 07 is or can be effectively connected to an alignment device 26 in a defined manner from an entrance area, wherein in the entrance area the substrate 02 to be processed and having the optically variable coating medium 06 on its first side is conveyed or can be conveyed, and the alignment device 26 comprises as an active element 24 an element 24 providing a magnetic field, referred to as a magnetic element 24, preferably effectively connected in the following manner: the magnetic element 24 of the alignment device 26 for imaging alignment and the printing material 02 printed with a printing ink 06 containing particles P move synchronously with each other at least on a section of the transport path. Here, the alignment device 26 is designed as a magnetically active cylinder 26 , abbreviated as a magnet cylinder 26 , which has an arrangement of magnet elements 24 on the circumference and by which the printing material 02 is guided or fed from an entry region to an exit region of the alignment device 07 .

[0054] The magnet element 24 can be formed directly by a single-piece or multi-piece magnet 27 itself, or can preferably include one or more magnets 27 arranged on a holder 28, for example on a base 28 or therein, preferably detachably. Here, a magnet 27 is generally understood to be a magnetically effective device, which permanently or switchably generates a sufficiently strong magnetic field, at least toward one side of the conveying path, in particular for aligning the particles contained in the coating medium 06 on the substrate 02 guided thereon as described here. Here, the magnet 27 can be formed by one or more permanent magnets with or without a gravure, by an electromagnet, or by a combination of one or more permanent magnets and / or one or more electromagnets. Regardless of whether it is a single magnet or a combination of multiple magnets (for example permanent magnets and / or electromagnets), unless otherwise explicitly stated, the term magnet 27 is also understood below to refer to multiple magnets 27 that are assigned to the same magnet element 24 and form a magnet unit as a whole. Below the magnetic element 24, embodiments with a plurality of single-piece or multi-piece magnets 27 which are contained by the magnetic element 24 and are spaced apart from one another are also to be included, as can be used, for example, in the case where corresponding magnetic fields are to be applied to the same printed sheet 09 at two different locations. Here, such a magnet 27 or an arrangement of a plurality of magnets 27 of the same magnetic element 24 can be accommodated in a housing 38 of the magnetic element 24, which can be arranged, for example, separately from the holder 28, in or on the holder 28.

[0055] In principle, two such magnet drums 26 can also be provided in the transport path, which are arranged on the same side or on different sides of the substrate 02 to be fed along the transport path.

[0056] In a preferred embodiment, the alignment device 07 is a drying and / or curing device 19, such as a radiation dryer 19, in particular a UV radiation dryer 19, referred to as a UV dryer 19, which is preferably designed as a UV-LED dryer 19 and / or is directed to a position in the conveying path so that the substrate 02 cooperates with the magnet roller 26.

[0057] The magnet roller 26 is preferably arranged on the second side of the substrate 02 to be fed in the transport path of the substrate so that the magnet roller with its first side, which is coated with the optically variable coating medium 06 in particular in the upstream line, points outward when passing through the magnet roller 26, in particular when being transported on the magnet roller 26.

[0058] The magnet drum 26 comprises a one-piece or preferably multi-piece drum body 29, on which the magnet elements 24 are preferably arranged detachably. The one-piece or preferably multi-piece drum body 29 is rotatably supported or can be supported in a frame. The term drum body 29 is intended to include closed structures, i.e., with a more or less closed drum shell surface, as well as open structures, i.e., scaffolding or frame-like components, such as, for example, Figure 4 Example shown.

[0059] The magnet roller 26 has a plurality of magnet elements 24 in the area facing the substrate path, for example in the area of ​​the outer circumference, in particular in the area of ​​the outer cylindrical envelope surface of the roller body 29, which are used to orient at least a portion of the magnetic or magnetizable particles P of the coating medium 06 applied to the passing printing material 02.

[0060] In particular, for the preferred and shown case in which there are multiple printed sheets 09 per substrate segment, for example, for each printing material or substrate single sheet 02, a plurality of columns or groups, particularly m (m ∈ N > 1) corresponding to the number of columns on the printing material segment 02, and a plurality of n (n ∈ N > 1) axially extending rows, particularly n corresponding to the number of rows of printed sheets 09 on the printing material segment 02 to be processed, are provided on the drum body 29 as viewed in the axial direction, or as viewed in the conveying direction T of the substrate 02 and / or in the circumferential direction of the drum 26, and the magnetic elements 24 are arranged in columns or groups one after another or in a matrix, i.e., n×m, i.e., n times m (where n, m∈N) magnetic elements 24 are provided in a matrix on the outer circumference. The magnet elements are preferably arranged such that for each column or group, the same number n of magnet elements 24 is arranged on the circumference and arranged in rows extending parallel to the axis and / or in particular arranged in such a way that when they are spread out on the substrate 02, they correspond to the pattern of the elements 03 with applied magnetic fields on the substrate 02, provided that the substrate position in the transport direction T and the angular position of the drum are correctly registered. The arrangement in rows or columns should also be understood to mean a corresponding grid or matrix-like arrangement corresponding to the following situation, that is, these arrangements are slightly offset from each other in the direction parallel to the axis, if necessary, in part for the purpose of correction or adjustment. The n magnet elements 24 arranged one after another in a column or group are then arranged one after another in the circumferential direction, for example, at least in such a way that these magnet elements at least overlap when rolling along the circumference of the circle and / or are in the same column of printed sheets 09 of the substrate 02 to be processed, even if they may be slightly offset from each other for the purpose of correction or adjustment. The slight mutual offset that may exist in the circumferential direction also applies to the axis-parallel arrangement.

[0061] By guiding the substrate 02 on a magnet roller 26 designed in this way, wherein, for example, the first substrate surface points outward during transport on the first roller 26, alignment or orientation of the particles P in the area of ​​the image elements 03 arranged on the printed sheet 09 can be achieved with the aid of the magnet elements 24, here for example through the substrate 02.

[0062] Here, the number m of columns or groups is, for example, four to eight, in particular five and seven, for example six, and / or the number n of magnet elements 24 in a column or group is, for example, two to twelve, advantageously five to ten. The magnet drum 26 or its drum body 29 is preferably designed such that: the number m of columns or groups and / or the number n of magnet elements 24 arranged one behind the other in a row or column can be varied, for example within the limits mentioned above, to adapt it to different requirements.

[0063] Preferably, the magnetic element 24 is preferably arranged detachably together with the corresponding retaining member 28 or on the retaining member or can be arranged on the drum 26, so that the magnetic element can be arranged at a defined position on the circumference of the drum 26 in the assembled state and can preferably be completely removed from the drum 26 and / or can be positioned on the circumference of the drum 26 in the axial and / or circumferential direction.

[0064] For the above-described matrix-like arrangement, the magnet elements 24 can be arranged and supported on or in the drum body 29 in such a way that the magnet elements 24 can be variably supported on or in the drum body with respect to their axial position relative to the single-piece or multi-piece drum body 29 relative to other magnet elements 24 of the same column or group of magnet elements 24. This can be achieved, for example, via axially extending guides on the circumference of the drum body 29, in which the relevant magnet elements 24 are indirectly or directly supported or on which they can be moved into different axial positions. In principle, such guides can be provided individually for each magnet element 24 in a row (see, for example, according to Fig.11 ), but if necessary, multiple or all magnet elements 24 in the same row can also be continuously arranged. In this case, the guide portion can be arranged on the above-mentioned axially extending bearing element, which carries all magnet elements 24 in the same row.

[0065] In an advantageous embodiment, the magnet elements 24 of the respective row or preferably of the respective column, if necessary in addition to the independent axial and / or circumferentially distributed positionability of individual or all magnet elements 24 of the row or column explained in more detail below, can be varied as a whole and independently of the adjacent rows or columns in the case of rows with respect to their position in the circumferential direction and in the case of the columns presented here with respect to their axial position on the magnet drum 26 or on the drum body 29 as a group. In the case of rows that are grouped into groups, which is not shown here, in particular, the magnet elements 24 of a plurality of, preferably all rows, are grouped into groups that can be positioned together in the circumferential direction, for example, on axially extending support elements. In the preferred case of columns that are grouped into groups, in particular, a plurality of columns, advantageously at least two of the at least three columns that are closest to the end face, and advantageously all columns as a group, are supported axially movably in or on the magnet element carrier 29, in particular the drum body 29, in the following manner.

[0066] In the preferred case of a grouped column, the magnetic elements 24 can be arranged or capable of being arranged indirectly or directly on a plurality of, for example, a number m of, for example, four to eight, in particular five to seven, for example six, for example, axially spaced from one another and preferably partially or preferably entirely positionable in the axial direction on a drum inner body 32, in particular an axially extending drum shaft 32, referred to as shaft 32, for example, a support element 31, wherein in or on the annular element 31, there are respectively a plurality of, for example, two to twelve, advantageously five to ten, magnetic elements 24 arranged or capable of being arranged one after another in the circumferential direction and preferably at least partially or entirely positionable in the circumferential direction (see, for example Figure 4 and Figure 5 ).

[0067] In the case of a web-like substrate 02, the magnet drum 26 can be designed without any holding means acting on the substrate 02 and, for example, with an annular element 31 that is closed in the circumferential direction. For the preferred case of a sheet-like substrate 02, holding means 33 are preferably provided on the circumference of the drum 26, for example, grippers 33 of so-called tensioning strips, on which the substrate sheet 02 to be fed is received by the grippers at its front end and is or can be held within a certain rotation angle range during the rotation of the drum 26. In this case, the magnet drum 26 designed in this way simultaneously serves to transport the substrate 02. In this case, the annular element 31 is, for example, provided on the circumference of the drum 26. Figure 4 and Figure 5 As can be seen in the figure, it is interrupted in the circumferential direction in order to accommodate the holding means 33. Therefore, here, unless otherwise specified, "ring-shaped" support elements or "ring-shaped elements" also include non-closed, that is, ring-segment-shaped elements. Figure 5 In the case of fixing means, if necessary, such as, for example, according to Figures 15 to 18 The embodiments are described in detail and can also be used for Figures 1 to 14 The embodiments in FIG. 1 are not shown in detail.

[0068] In a particularly advantageous embodiment of the magnet drum 26, a separate structural unit 36 ​​is provided for a plurality of or all magnet elements 24, which is positioned or capable of being positioned on the drum body 29 or therein in a matrix of rows and columns in the manner described above, and is also referred to below as an action unit 36, in particular a magnet unit 36, which comprises at least one magnet element 24 and at least one suction element 34, respectively.

[0069] In a particularly preferred embodiment of the device 07 for aligning magnetic or magnetizable particles P, among a plurality of, preferably all m columns of magnet elements 24, a plurality of, in particular all magnet elements 24 arranged one after the other, together with at least one corresponding suction element 34 are assembled in a corresponding structural unit 36 ​​as an action unit 36 ​​and can therefore be positioned as a whole and separately independently of all other such action units 36 and / or can be separated from the drum 26.

[0070] The action units 36 each comprise a magnet element carrier 37, on or in which the magnet element 24 is arranged on its outwardly pointing side. The at least one suction element 34 can be integrated into the magnet element carrier 37 as part of the magnet element carrier 37 or can be arranged as a separate part on the magnet element carrier. Preferably, viewed in the axial direction of the drum 26, the action unit 36 ​​comprises at least one suction element 34 on both sides of the magnet element 24. The respective suction element 34 comprises a plurality of suction openings 42 in a surface pointing outward, i.e. to the outside of the drum 26 and / or at the height of the drum envelope surface, which are arranged, for example, in a suction air channel 39 in the covering suction element 34 (see, for example Fig.11 ) is preferably detachably fastened over the suction channel 39. A channel structure (not visible in the figures) leads from the respective suction air channel 39 through the action unit 36 ​​to a line connection 43 on the bottom side, which is formed, for example, by at least one recess 43 open toward the drum interior in the bottom of the action unit 36 ​​facing the drum interior (see, for example Fig.11 Through at least one recess 43 or a line connection 43 formed thereby and assigned to the active unit 36 ​​, air can be sucked in from a suction opening 42 connected via the channel structure and the suction air channel 39 .

[0071] The action unit 36 ​​can be arranged or can be arranged in a matrix-like manner, in an embodiment not shown, indirectly or directly, on a cylindrical shell surface 44 of the axially extending drum inner body 32, in particular the shaft 32. The drum inner body or the shaft, for example, has a suction air opening 46 pointing radially outward as a pipeline interface 46 for guiding suction air on a longitudinal section that indirectly or directly supports the magnet element 24, and the suction air opening is connected to a channel 48, for example, a suction air channel 48, which extends axially in the shaft 32 and is to be loaded with suction air from at least one drum end, for example, via a radial through-hole 47, for example, a hole 47.

[0072] In the case where the action units 36 are arranged or can be arranged directly, i.e. not indirectly, in a matrix-like manner on the above-mentioned shell surface 44 of the axially extending drum inner body 32 or shaft 32, the action units 36 are positioned on the shell surface 44 in such a way that the free cross section of the line connection 43 on the bottom of the action unit 36, here for example the above-mentioned recess 43 in the bottom of the corresponding action unit 36, overlaps with at least one line connection 43 formed by the suction air opening 46 in the shaft 32. In this case, the above-mentioned recess 43, for example, forms a chamber 43 delimited on the bottom side by the shell surface 44, wherein the wall surrounding the recess 43 on all sides in the foot area of ​​the action unit 36 ​​together with the opposite area of ​​the shell surface 44 of the shaft 32 forms a sealing surface surrounding the sealing chamber 43. In this embodiment, air is sucked in from the suction opening 42 in the associated suction element 34 via the suction air channel 39 and the channel structure, via the line connection 43 of the active unit 36, which is formed, for example, by a recess 43, and at least one suction air opening 46 of the drum inner body 32, as well as the suction air channel 48. For such an embodiment, suitable fastening means, for example in the form of a clamping connection or a screw connection, are provided, by means of which the corresponding active unit 36 ​​can be fastened to the shell surface 44.

[0073] However, in the particularly advantageous embodiment shown here, the action unit 36 ​​is not arranged or can be arranged directly on the section of the drum inner body 32 or the shaft 32 having the suction air opening 46, but a plurality or preferably all of the action units 36 provided for the corresponding columns are arranged as a group or can be arranged on the above-mentioned, in particular annular supporting elements 31, such as the annular element 31, wherein advantageously at least the supporting elements 31 furthest outward on both sides, but preferably all supporting elements 31 carrying the corresponding groups or columns of action units 36 can be varied in their axial position on the drum inner body 32 or the shaft 32.

[0074] The preferably annular support element 31 or annular element 31 has, on the side facing inwards, i.e., pointing towards the drum inner body 32 or the shaft 32 in the assembled state, and on the side facing outwards, a line connection 49; 51 assigned to the relevant support element 31, and a channel structure connecting one or more inner line connections 49 to one or more outer line connections 51 for conducting the suction air. Here, on the inner side, as line connection 49, for example, in a wall 52 facing the drum interior, a recess 49 is provided, which is connected to a line via one or more channels 53 extending in the annular element 31, respectively, with a through-hole 54, for example a hole 54, which leads through the support element 31 to the outer line connection 51 and extends radially, for example. The opening of the individual holes 54 is also guided on the outside into a recess 51, for example, forming an outer line connection 51, in a wall 56 of the support element 31 facing outwards.

[0075] In particular with regard to the variant explained in detail below in which the suction opening 42 is subjected to a low pressure only during a defined rotation angle phase, the annular element 31 can include segmented line connections between one or more inner line connections 49 and one or more outer line connections 51, in particular in respectively opposite circumferential segments, so that the application of a low pressure to one or more inner line connections 49 in a segment 45 only results in a low pressure being present at one or more outer line connections 51 corresponding to the same segment 45, in particular independently of the application of one or more inner line connections 49 of another or adjacent segment 45. For this purpose, a direct line connection between the inner and outer line connections 49, 51 can be provided, or, for example, a direct line connection between the inner and outer line connections 49, 51 can be provided. Figure 5 As shown in FIG. 4 , chambers 55 corresponding to the segments 45 are provided, which are separated from each other by walls extending between the outer wall 56 and the inner wall 52 of the annular element 31. Here, the segments 45 or chambers 55 formed in this way can extend in smaller or larger segments in the circumferential direction according to the desired classification scheme, and / or include one or more inner and / or outer pipeline interfaces 49; 51 arranged one after another in the circumferential direction. Then, the loading with low pressure or suction air in the determined segment 45 causes the corresponding angular segment Δ on the circumference of the drum 26 to be x Suction is carried out through the suction opening 42.

[0076] The ring element 31 is or is positioned, for example, in particular on the shell surface 44 in such a way that the free cross section of the corresponding line connection 49, here for example the above-mentioned recess 49, on the inner side of the ring element 31 overlaps with the at least one suction air opening 46 in the shaft 32 or the drum inner body 32. Here, the above-mentioned recess 49 forms, for example, a chamber 49 delimited by the shell surface 44 on the bottom side, and the surface of the inwardly directed wall 52 of the ring element 31, which is located outside the recess 49, together with the opposite region of the shell surface 44, forms a sealing surface for sealing the chamber 49. In a similar manner, for example, the active unit 36 ​​is positioned, in particular, on the outwardly directed side of the ring element 31 in such a way that the line connection 43 at the bottom of the active unit 36, here for example the above-mentioned free cross section of the recess 43 in the bottom of the relevant active unit 36, overlaps with at least one external line connection 51 on the outwardly directed side of the ring element 31. Here, the recess 43 forms a chamber 43 which is delimited, for example, on the bottom side by an outer wall 56, wherein the wall surrounding the recess 43 all around in the foot region of the action unit 36 ​​together with the opposite region of the wall 56 of the support element 31 forms a sealing surface of the sealing chamber 43. In this embodiment, air is drawn from the suction opening 42 in the relevant suction element 34 via the suction air channel 39 and the channel structure, via the line connection 43; 51 formed, for example, by overlapping recesses 43 and 51, the channel structure of the ring element 31, the line connection 49 formed, for example, by the recess 49 on the inner side of the ring and at least one suction air opening 46 and the suction air channel 48, and, for example, via the rotary perforation, from a suction air source located outside the drum 26. A suction air source is to be understood as any type of air pressure drop which, via a corresponding line connection to the suction opening 42, achieves a pressure lower than the ambient pressure, i.e. a negative pressure at the relevant suction opening 42. This can be, for example, a vacuum pump or, if necessary, a container charged with negative pressure.

[0077] The corresponding pattern of the suction air openings 46 or pipe interfaces 46 on the drum inner body 32 and the position and shape of the corresponding (multiple) pipe interfaces 43 or (multiple) recesses 43 in the bottom area of ​​the acting unit 36 ​​associated with the above-mentioned first variant (without the supporting element 31) are preferably coordinated with each other, so that the continuous positioning of the two suction air openings 46 spaced apart in the circumferential direction of the acting unit 36 ​​is achieved within at least one adjustment range on the shaft 32 in the following manner: in the first variant, in each position within the relevant adjustment range, at least one of the suction air openings 46 or pipe interfaces 46 is completely covered by the lower side of the acting unit 36, while at the same time, the opening cross-section of at least one suction air opening 46 or pipe interface 46 at least partially overlaps with the pipe interface 43 or recess 43 on the bottom side of the acting unit 36.

[0078] In connection with the second variant (including the support element 31), the corresponding pattern of the suction air openings 46 or the pipe connections 46 on the drum inner body 32 and the position and shape of the matching (multiple) pipe connections 49 or (multiple) recesses 49 on the inner side of the support element 31 and the position and shape of the matching pipe connections 51; 43 or recesses 51; 43 on the outer side of the support element 31 on the one hand and on the bottom area of ​​the action unit 36 ​​on the other hand are preferably coordinated with each other so that: the continuous positioning of the action unit 36 ​​in the circumferential direction according to the second variant over the adjustment range of at least two pipe connections 51 or recesses 51 on the outer side of the support element 31 is achieved in such a way that at least one pipe connection 51 or recess 51 on the outer side of the support element 31 is completely covered by the lower side of the action unit 36, while at the same time the opening cross section of at least one pipe connection 51 or recess 51 on the outer side of the support element 31 at least partially overlaps with the pipe connection 43 or recess 43 on the bottom side of the action unit 36.

[0079] In connection with the variable positioning, in a particularly advantageous development, the line connections 46; 51 are provided in the axial direction of the drum inner body 32 and / or in the circumferential direction on the support element 31 at more locations than are required for a single specific operating configuration. However, in order to prevent false air from being sucked in through the line connections 46; 51 that are not covered by the action unit 36 ​​or the annular element 31, a closing device 57; 58 is provided, by means of which the feed-effecting passages 47; 54 of the line connections 46; 51 that are not covered by the action unit 36 ​​or the support element 31 can be selectively closed on the drum inner body 32 and / or on the outer circumference of the support element 31. In the simplest case, this can be a plug that is inserted into the relevant passage 47; 54 for closing and can be removed from the passage again if necessary.

[0080] Preferably, a closing mechanism 57; 58, for example designed as a valve 57; 58, is provided in the through-holes 47 and 54 to be selectively closed, wherein the closing mechanism is moved or can be moved into a closed position in the through-holes 47 or 54 which is not or only partially directly covered by the action unit 36 ​​or the supporting element 31, while at least some of the through-holes 47 or 54 are moved or can be moved into a conducting position by the pipeline interfaces 46; 51 which are completely covered by the action unit 36 ​​or the supporting element 31.

[0081] A preferred embodiment of such a closing device 57; 58 is in the form of a valve 57; 58, which can be selectively brought into the conducting position or the closed position without being moved out or inserted. In an advantageous embodiment, the through-port 47; 54, which is designed in particular as a hole 47; 54, is connected to the channels 48 and 53 of the drum inner body 32 or the support element 31 on the suction side only in the clear cross section. The valve 57; 58 is formed, for example, in a particularly advantageous embodiment by a sleeve 57; 58, which has a recess 61 in a side wall 62 on one side, which in the rotational position representing the conducting position opens the path to the channel 48; 53 connected on the suction side in the drum inner body 32 or in the support element 31, while in a different rotational position, the recess is interrupted by the sleeve wall from the connection with the relevant channel 47; 54. In an advantageous embodiment, the sleeve-shaped valve 57; 58, for example, at least in the section further outward in the assembled state, has an operating interface 63 that can be engaged with a tool 59, via which the valve 57; 58 can be rotated between a conducting position and a closed position by means of a corresponding tool 59, in particular without having to be removed. For example, a polygonal key 59 and an inner circumferential section 63 in the sleeve 57; 58 designed as an inner polygon 63 are used as the corresponding tool interface pair 59, 63.

[0082] In the improvement of the roller 26, a support element 66 is arranged between each two rows or groups of structural units or active units 36, and the support element has a support surface 67; 68 at the height of the roller envelope end, which is used to support the substrate 02 fed through the roller 26. Here, the support surface 67 can be an outwardly directed cylindrical surface 67 of an annular support disk 64, or an outwardly directed surface 68 of a support plate 71 arranged on a support disk 69 made of synthetic material or metal. Here, the term "circular" or "annular" should also include a support disk 69 that is not completely closed in the circumference, that is, a circular ring segment.

[0083] In a particularly advantageous embodiment for fixing the magnet element 24 on the drum 26, several or all of a group of magnet elements 24 are supported on a common annular supporting element 31 and can be positioned on the supporting element 31 in the circumferential direction, and the magnet element 24 or the magnet element carrier 37 supporting the magnet element 24 has at least one clamping element 72; 73, for example a clamping rod 72; 73, on both sides as viewed in the axial direction, and the ends of the clamping elements effective for clamping are respectively engaged below and extend in the circumferential direction on the corresponding end faces of the annular supporting element 31 in the assembled state and point inwardly, that is, with their surface normals pointing to the interior of the drum and / or prevent the magnet element 24 or the magnet element carrier 37 from moving out radially by cooperating with the clamping elements 72; 73 located in the clamping position. In this case, the stop surface 74; 77 is, in a particularly advantageous embodiment, an inwardly directed surface of a groove 76; 78 extending in the circumferential direction at the end in the carrier element 31, into which the clamping element 72; 73 engages with its effective, for example claw- or clamp-like, end. In addition to stop surfaces 74; 77 or grooves 76; 78 extending in the circumferential direction, stop surfaces 74; 77 or grooves 76; 78 preferably extending over the entire circumference or, as shown, through the relevant arc segments, also include stop surfaces 74; 77 or grooves 76; 78 that are interrupted if necessary and continue in a plurality of arc segments. However, the latter would limit the variability of the positioning in the circumferential direction. In addition to surfaces pointing strictly radially inwards, surfaces pointing "inwards" here also refer to surfaces that are inclined thereto, whose surface vectors converge into the interior of the drum, but preferably as circumferential surfaces, point to the drum axis at the same point for each end face and provide a stop against radial displacement for the clamping elements 72; 73. In an advantageous embodiment variant, in particular in order to increase the stability of the support, there are two clamping elements 72; 73 spaced apart in the circumferential direction on each side or clamping elements 72; 73 with two claws that cooperate with the carrier element 31 at a distance from each other.

[0084] Although the clamping element 72; 73 can in principle also be designed as a single-arm lever 72; 73, it is preferably implemented in the form of a two-arm lever 72; 73 which is pivotable about an axis 81, for example a pivot axis 81, supported on the magnet element 24 or its holder 28 or the structural unit 36 ​​comprising the magnet element 24, the lever arm of the lever closer to the center of the drum having a component, for example a claw-like or clamp-like component, cooperating with the stop surface 74; 77, and the lever arm located further outward is used for actuation. Preferably, the clamping element 72; 73 is prestressed in a self-securing manner, for example by a spring element 79, in particular a compression spring 79, which acts between the lever 72; 73, in particular the lever arm located further outward, and the magnet element 24 or the holder 28 or the structural unit 36 ​​in such a way that in the rest state, that is, without actuation, the clamping element is in the clamping position and holds the magnet element 24 or the holder 38 or the structural unit 36 ​​on the carrier element 31. The described fastening device, together with the assembly aid 97 explained in more detail below, offers certain advantages.

[0085] The above-described type of fixing with fixing means 72; 73, 74, 77 is in principle independent of, but advantageously related to, the upper structural unit 36, in particular the action unit 36 ​​and / or the suction air guide or supply and / or the axial movability of the individual magnet elements 24 implemented below and / or the movability of the individual magnet elements 24 implemented below in the circumferential direction. By means of the clamping elements 72; 73, the connection can be disconnected from the outside without having to remove the relevant magnet element 24. By means of the adjustability following one another, the disconnection can take place to the extent that the relevant magnet element 24 can be positioned in the circumferential direction against any friction forces that may still be present, but without the risk of, for example, tipping over, slipping or falling.

[0086] In e.g. Fig.11 , Fig.12 and Fig.14 An optionally provided line 84 is shown or indicated on a part of FIG. 8 , which provides a signal and / or electric energy to the motor in the case where the magnet 27 in the magnet element 24 is designed to be rotatable by the motor.

[0087] As already combined above Figure 2 and Figure 3As described, the corresponding columns of imaged printed material extending in the circumferential direction of the cylinder 14 relate to printed sheets 09 of the same column which are arranged or can be arranged one after the other on the substrate 02. These printed sheets 09 are ideally arranged in a straight line with one another in the transport direction T and have a uniform width. In cases differing from this, for example if the substrate 02, which may have been previously printed with a pattern of the printed sheet 09, undergoes a trapezoidal deformation in an upstream process or due to other mechanical or physical stresses, the geometry thus changed can be overcome by correspondingly changing the arrangement of the printed material 18 on the plate cylinder 14. The printed materials 18 of the individual columns are then, for example, not strictly arranged in a straight line with one another in the circumferential direction, but are, for example, partially located on a spiral line which is slightly inclined to the circumferential line (for example, for better perception). Figure 3 ). In this case, the width of the printed sheet 09 on the substrate 02 increases, for example, from the front end of a substrate segment or a substrate sheet to the rear end 02 or, for example, at the beginning of the printing press 01, when a corresponding backfeed is carried out, and vice versa if necessary. However, there may also be other reasons for the relative positional deviation between the axial position of the individual magnetic elements 24 and the target position, thereby influencing the effect of this deviation on the substrate 02, for example, the axial positioning of the magnetic elements 24 on the cylinder 26 or the like is also slightly incorrect.

[0088] In principle, independently of the arrangement of the magnet elements 24 in the above-mentioned structural unit 36 ​​and / or the embodiment of the above-mentioned fixing device and / or the adjustability in the circumferential direction, but preferably in connection with one or more of the above-mentioned advantageous embodiments, in a particularly advantageous embodiment, at least in a plurality, preferably in all rows or groups of magnet elements 24 extending in the circumferential direction, at least one magnet element 24 is respectively supported directly or indirectly on the drum body 29 of the magnet drum 26, at least axially adjustable or movable, independently of at least one other magnet element 24 in the same row or group. Preferably, a plurality, advantageously at least all, except one, and particularly advantageously all magnet elements 24 of the same group are supported axially movable independently of the other magnet elements 24 of the group, and / or a plurality, advantageously all, except one or all magnet elements 24 of at least two end sides, in particular all rows or groups of at least three rows or groups are supported independently of the other magnet elements 24 of the corresponding row. As a result, random or systematic relative offsets of the above-mentioned individual magnet elements 24 can be readjusted or corrected in the axial position. In particular, in connection with the above-mentioned indirect support scheme of the magnet element 24 on the magnet element carrier 37, the magnet element carrier is directly or indirectly arranged on the drum body 29 via the above-mentioned supporting element 31, and such axially adjustable magnet element 24 can preferably be axially adjusted relative to the latter on the relevant magnet element carrier 37.

[0089] In a particularly advantageous embodiment of a roller 26 having n×m magnet elements 24 arranged in a matrix, at least two or all of the magnet elements 24 arranged one after the other in the same column are supported on or at the above-mentioned common supporting element 31 and can be changed together with the supporting element and independently of the adjacent group with respect to their axial position in or on the roller 26. Furthermore, at least two or preferably all of these or preferably each column magnet elements 24 are supported on corresponding magnet element carriers 37 which can be positioned independently of each other in the circumferential direction on the common supporting element 31 and / or can be separated from the supporting element 31 and are axially adjustable on the relevant magnet element carriers 37 within an adjustment range of, for example, a total of at least 1 mm, preferably at least 2 mm.

[0090] In this embodiment, the axially movable magnet 27 or the retaining element 28 is carried indirectly via an associated magnet element carrier 37, which carries the corresponding, at least axially movable magnet element 24 and is preferably itself positionable variably in the circumferential direction on the ring element 31.

[0091] In a simple and less complex embodiment (see e.g. Fig.10 ), the corresponding magnet element 24 or the holder 28 is fixed in or on the magnet element carrier 37 or its holder 28 by means of a fixing means 83, for example a screw 83, in such a way that after at least partial loosening of the fixing, for example by at least partially loosening the screw 83 using a corresponding tool, the magnet element 24 or the holder 28 is separated to such an extent that it is axially movable at least within the relevant adjustment range on the magnet element carrier 37. The fixing means 83, for example, designed as a screw 83, can be achieved, for example, by a recess designed as an elongated hole 82 in the bottom region of the holder 28 that accommodates the magnet element 24 after the magnet element 24 is removed.

[0092] However, in contrast to a purely manual and / or tool-free movement, for example, the axial displacement or adjustment of the magnet element 24 or the holder 28 comprised thereby is preferably performed via a mechanical adjustment mechanism 86 , 87 , 89 , in particular including a transmission.

[0093] Although the adjusting means 86, 87, 89 which bring about the axial movement can be realized by any suitable means or transmission, in the illustrated and particularly advantageous case, these adjusting means include a transmission which converts a rotational movement, in particular of the magnet element 24 or of the holder 28 carrying the magnet element 24, in particular on the input side, into a linear movement, in particular an eccentric drive, which converts a rotational movement of the eccentric 86, which is formed, for example, by an eccentrically mounted shaft segment 86, into a linear movement, here extending in the axial direction, of a carriage 87 which indirectly or directly carries the magnet element 34 or its holder 28, which is indirectly or directly operatively connected to an eccentric housing-side active surface and is linearly displaceably supported in or on the magnet element carrier 37. The eccentric 86 is preferably actuated with its axis of rotation radially relative to the drum 26 and / or can be actuated indirectly or directly from the drum side pointing outward. For this purpose, for example, a shaft 89 surrounding the eccentric 86 or extending outwards thereof has an operating interface 88 in the region of its outwardly directed end, for example an inner polygon 88, which can be operated by means of a corresponding tool, here for example a polygonal key, in particular pivotable. As an alternative to an eccentric 86 arranged radially with respect to the axis of rotation, a tangential position or a position parallel to the tangent is also conceivable, where the eccentric can be operated from the side pointing in the circumferential direction or from the outside via an angular transmission, for example.

[0094] The axial adjustment range viewed from the center position is, for example, at least ±1.0 mm (ie, a total adjustment travel of at least 2 mm), preferably at least ±1.2 mm, for example ±1.5 mm.

[0095] In the above-described embodiment as an active unit 36 ​​comprising at least one suction element 34, in an embodiment variant, at least one suction element 34 can be axially moved together with the magnet element 24 on a magnet element carrier 37. Here, the corresponding suction air conduction can be provided, for example, by relatively movable sealing surfaces or flexible lines.

[0096] There may also be an offset in the transport direction T between the relative position of the individual magnet elements 24 in the circumferential direction of the drum 26 and the target position of the magnet elements' influence on the substrate 02, which may have various reasons, such as the limited feasibility of rough and / or manual pre-positioning on the drum body 29 or, in particular, on a supporting element 31 that is provided if necessary.

[0097] In principle, independently of the arrangement of the magnet elements 24 in the above-mentioned structural unit 36 ​​and / or independently of the embodiment from the above-mentioned fixing device and / or independently of the above-mentioned adjustability in the axial direction, but preferably in connection with one or more of the mentioned advantageous embodiments, in a particularly advantageous embodiment, at least in a plurality of, preferably in all, axially extending rows of magnet elements 24, at least one magnet element 24 is respectively supported independently of at least one other magnet element 24 of the same row, at least in the circumferential direction, indirectly or directly on the drum body 29 of the magnet drum 26, so as to be adjustable or movable. Preferably, in a plurality of rows, in particular all rows, a plurality of, advantageously all magnet elements 24 of the same row, advantageously at least with the exception of one, but particularly advantageously all magnet elements 24 are supported axially movably independently of the other magnet elements 24 of the row.

[0098] Alternatively or in addition, in a particularly advantageous embodiment of a drum 26 with magnet elements 24 arranged in a matrix-like manner, at least two magnet elements 24 arranged one behind the other in the same column are arranged on magnet element carriers 37 which are different from one another and can be positioned independently of one another in the circumferential direction on the drum 26 or wherein at least two, in particular all, magnet elements 24 arranged on the respective magnet element carriers 37 are supported adjustably in the circumferential direction relative to the magnet element carrier 37 carrying the magnet elements 24 within a total adjustment range of at least 1 mm, preferably at least 2 mm. This preferably applies to at least two or all magnet elements 24 of all columns.

[0099] In contrast to a purely manual and / or tool-free movement, for example, the displacement or positioning of the magnet element 24 or the holder 28 surrounded thereby in the circumferential direction is preferably effected via a mechanical adjusting mechanism 91 , 92 , 94 , in particular including a gear mechanism.

[0100] In this way, adjustment or adjustment movement in the circumferential direction should explicitly include, in addition to movement on a circular arc, movement along a linear movement path extending tangentially or parallel to the circumference within the relevant adjustment range. In this case, similar to the cylinder diameter, this is usually a very small relevant adjustment range, so that the linear adjustment path usually does not lead to unacceptably large imaging errors.

[0101] Although the adjustment means 91, 92, 94 that cause the circumferential movement can be realized by any suitable means or transmission, in the illustrated and particularly advantageous case, these adjustment means include a transmission that converts, for example, a rotary motion, especially on the input side, for example, indirectly or directly, into a linear motion, especially of the magnet element 24 or of the holder 28 that carries the magnet element 24, especially an eccentric drive, which causes, for example, an eccentric 91 formed by an eccentrically mounted shaft segment 91 to convert a rotary motion of an eccentric 91, for example, an eccentric 91 formed by an eccentrically mounted shaft segment 91, for example, into a linear motion of a support element 92 that indirectly or directly carries the magnet element 24 or its holder 28, for example, by indirectly or directly cooperating with an active surface on the eccentric housing side and supporting a slide 92 in or on the magnet element carrier 37 that can move linearly. In the above-mentioned sense, a linear motion is to be both a preferably linear motion based on work and also a motion on a circular arc. The eccentric 91 preferably extends with its axis of rotation radially relative to the drum 26 and / or can be operated from the drum side that points outward. For this purpose, for example, the shaft 94 surrounding the eccentric 91 or continuing outwards has an operating interface 93, for example an inner polygon 93, in its outwardly directed end region, which can be operated, in particular pivoted, by means of a corresponding tool, here for example a polygonal key. As an alternative to the eccentric 91 being arranged radially with respect to the axis of rotation, a tangential position or a position parallel to the tangent is also conceivable, wherein the eccentric can be operated from the outside, for example, from the side pointing in the circumferential direction or via an angular transmission.

[0102] The adjustment range in the circumferential direction viewed from the center is, for example, 100 μm at least ±1.0 mm (ie a total adjustment travel of at least 2 mm), preferably at least ±1.2 mm, for example ±1.5 mm.

[0103] In the above embodiment as an active unit 36 ​​comprising at least one suction element 34, in one embodiment variant, the at least one suction element 34 can be moved in the circumferential direction together with the magnet element 24 on the magnet element carrier 37. In this case, a corresponding suction air passage can be provided, for example by means of relatively movable sealing surfaces or flexible pipes.

[0104] For the axial and circumferential adjustability of the magnet element 24 on the corresponding magnet element carrier 37, the two slides 87; 92 can be arranged one on top of the other and / or stacked on top of each other indirectly or directly in the manner of a cross guide.

[0105] The axial and / or circumferential positioning of the associated magnetic elements 24 can be achieved in one of the above-described ways in a variant embodiment by means of a respective remotely controlled drive, such as an eccentric 86; 91, for example by driving an electric motor of a reduction gear.

[0106] In principle, independently of the above-mentioned adjustability of the magnet element 24 on the structural unit 36 ​​and / or in the axial direction and / or in the circumferential direction in the above-mentioned manner, but preferably in connection with one or more of the mentioned advantageous embodiments, the above-mentioned assembly aid 97 is provided, which can be placed on the magnet element 24 or the magnet element carrier 37 carrying the magnet element 24 or the structural unit 36 ​​comprising the magnet element 24 and by which the clamping seat or the clamping connection between the clamping element 72 and the support element 31 on both sides is made detachable. Preferably, the clamping by means of the assembly aid 97 or the drive mechanism 102 included in the assembly device 97 and in particular manually operable can be separated and opened not only to the extent that the magnet element 24 or the structural unit 36 ​​comprising the magnet element can be removed from the support element 31, but also in an intermediate position, in terms of the strength of the clamping or the degree of opening, to the extent that the magnet element 24 or the structural unit 36 ​​is not yet completely free, but can be positioned as a whole on the support element 31 in the circumferential direction. The degree of opening can be adjusted in this case so that there is still a contact-like contact between the clamping elements 72; 73, but positioning can be achieved when any small friction forces that may still be present are overcome. For this purpose, the operating arm 98 can be positioned by the drive mechanism 102 preferably continuously over an adjustment stroke between a clamping position in which the clamping elements 72; 73 generate a full clamping force on the carrier element 31 and a position in which the clamping is separated to such an extent that the magnet element 24 or the magnet element carrier 37 carrying the magnet element can be removed from the carrier element 31.

[0107] In order to enable simple operation from the outside of the drum and / or in particular also to enable such a limited opening, the assembly auxiliary mechanism 97, in addition to a base 104 that can be placed on the relevant magnetic element 24 or on the relevant structural unit 36, also includes an operating arm 98 on two end faces 98, which extends radially to the two end faces of the magnetic element 24 or the structural unit 36 ​​and is or can be effectively connected to the clamping element 72; 73 on the or corresponding end side to operate the clamping element. Furthermore, the assembly aid 97 comprises the above-mentioned drive mechanism 102, in particular the adjustment drive 102, by means of which the operating arm 98 can be moved into a first position, in which the operating arm 98, for example, overcomes the above-mentioned spring force to such an extent that the clamping element 72; 73 is opened, so that the magnet element 24 or the structural unit 36 ​​can be mounted on the carrier element 31 or can be completely separated from the carrier element 31, until a second position in which the clamping element 72; 73 generates a full clamping force on the carrier element 31, without the operating arm 98 yet absorbing a force opposing the clamping force. Preferably, all positions in between can be adjusted by the drive.

[0108] In the above-described configuration of the clamping element 72; 73 as a two-arm lever 72; 73, the actuating arm 98 is respectively connected indirectly or directly to the lever arm located closer and is moved toward each other, i.e., in each case toward the support element 31, by the drive mechanism 102 to open the clamping connection and can be moved away from each other again to close the clamping connection. In the above-described case of two clamping elements 72; 73 arranged adjacent to each other, these clamping elements are connected to each other, for example, by a coupling element 96 connecting the two lever arms located further outward to each other, for example, a coupling shaft 96 supported in the two lever arms located further outward, which coupling element corresponding to the respective actuating arm 98 also serves as a point of action, for example. In the case of the respective clamping element 72; 73, the respective actuating arm 98 can act indirectly or directly on the lever arm located further outward of the respective clamping element 72; 73.

[0109] In principle, any drive means can be considered as a drive mechanism 102, by which two opposing operating arms 98 can be moved toward and away from each other in the above-mentioned sense. However, a drive mechanism with a self-locking transmission is preferred here, as is provided, for example, by a threaded drive. Therefore, the drive mechanism 102, for example, comprises a first part 99, for example, a first part 99, which carries the operating arm 98 on one side, and a drive device part 99, for example, a second sleeve 101, which is supported in a torsionally fixed manner but axially movable relative to the first part 99 and carries the operating arm 98 on the other side, and a threaded drive device formed internally, by which the parts carrying the operating arm 98 can be separated or moved closer to each other via an internal thread on the other part of the two parts 99; 101 of the drive mechanism 102, which is not shown on the one hand and can be twisted by a manual operating interface 103, such as a rotating handle 103.

[0110] In the embodiment of the magnet drum 26 with variable, in particular annular, support elements 31 in their axial position, these axially positionable support elements or annular elements 31 can in principle be fixed in any manner that enables a releasable connection and an axial relative movement between the respective support element 31 and the drum inner body 32. In particular, a connection is particularly advantageous in which, in the region of the pair of line connections for conducting suction air from the line structure 46 on the shaft 32 and the matching line connections 49 on the inwardly directed wall 52 of the annular element 31, these line connections 46; 49 are surrounded by the connection piece and pressed together so that these line connections form a sealing surface that is as closed as possible to prevent suction air from penetrating.

[0111] In principle, independently of the arrangement of the magnet element 24 in the above-mentioned structural unit 36 ​​and / or independently of the above-mentioned adjustability in the axial direction and / or the above-mentioned adjustability in the circumferential direction and / or independently of the above-mentioned clamping direction for clamping the magnet element 24 or the holder 29 or the structural unit 36, but preferably in conjunction with one or more of the mentioned advantageous embodiments, in a preferred embodiment for fixing the ring element 31, a clamping device is provided for the fixing, by means of which the carrier element or the ring element 31 can be clamped to the drum inner body 32, in particular designed as a shaft 32, in such a way that the above-mentioned sealing surface can be formed. In this regard, it is helpful to design the ring element 31 in the form of ring segments, i.e., not completely closed on the circumference, so that the inner diameter of the ring element 31 in the range of the segment angle is slightly larger, for example by 2 to 50 μm, in particular by 5 to 20 μm, than the outer diameter of the drum inner body 32, which is designed as the shaft 32 in the corresponding circumferential range.

[0112] In the case of the already explained cylinder 26 with the magnet elements 24 arranged in a row, a plurality or all of the magnet elements 24 of the row are arranged as a corresponding group on a corresponding support element 31. The corresponding support element 31 is here specifically designed as a ring segment-shaped, i.e., a ring-shaped support element 31 which is interrupted in a certain circumferential segment or intermediate angle and has a front and a rear end 106; 107 with respect to the production rotation direction D. Here, the production rotation direction D is defined, for example, by the arrangement of the tensioning strips already mentioned above, which have a gripper 33 at the front end 106 of the ring element 31 in the shape of a ring segment, which is opened and closed during operation to accommodate the substrate sheet 02. Located at the front end 106 of the segment-shaped part. The corresponding support element 31 is detachably arranged on the cylinder inner body 32 surrounded by the cylinder 26 and can be changed in its axial position in the separated state. In order to fix the support element 31 at a desired position on the drum inner body 32, a tensioning device 108 is provided on the drum inner body 32 in the region between the front and rear ends 106, 107 of the ring-segment-shaped support element 31 when the support element 31 is mounted on the drum inner body 32, and the two ends 106, 107 spaced apart in the circumferential direction can be loaded with forces directed toward each other in the circumferential direction by the clamping device through the adjusting mechanism 109 included by the tensioning device 108. As a result, the ring element 31 in the form of a ring segment is pressed sealingly against the shell surface of the shaft 32 by a possibly slightly elastic deformation, so that the above-mentioned sealing surface can be realized.

[0113] In this case, the tensioning device 108 is in particular joined to the two ends 106 ; 107 of the support element 31 and can be varied in the circumferential direction by means of an adjustment mechanism 109 comprised by the tensioning device 108 with respect to its length effective for the connection on both sides.

[0114] Preferably, the tensioning device 108 comprises a tensioning strip 111 which is arranged on the circumference of the drum inner body 32 in the region between the front and rear ends 106; 107 of the support element 31 and is fixed at least on one side against relative movement in the circumferential direction relative to the drum inner body 32. Preferably, however, the tensioning strip 111 and the drum inner body 32 are fixed against twisting in the circumferential direction by a stop pair which is effective in both rotational directions. This fixing can be achieved, for example, by a corresponding offset of the inner circumference of the annular element 31 and the outer circumference of the drum inner body 32, which acts as a stop pair. However, in the advantageous embodiment shown here, this relative anti-twist device is provided by a so-called mating element 112, usually also called a key 112, which is anchored, for example, in the shell surface of the drum inner body 32 and fits exactly with a recess, in particular a groove, in the tensioning strip 111, and vice versa. Here, the advantage of the mating element 112 with a correspondingly matching recess is that the drum inner body 32 can be easily radially equipped with the tensioning strip 111. In addition to the anti-twist protection, fastening means (not shown) can be provided, for example screws, by means of which the tensioning strips 111 can be fixed radially to the drum inner body 32 .

[0115] Preferably, in the relaxed state, i.e., the powerless state, of the tensioning device 108, directly or after the above-mentioned fixing mechanism is released, when the supporting element 31 still remains on the drum inner body 32, the tensioning strip 111 can be removed from the drum inner body 32, or when the annular element 31 is already positioned on the drum inner body 32, the tensioning strip can be inserted into the drum inner body 32 in the interruption area.

[0116] In an advantageous embodiment, the tensioning device 108 engages at one of the ends 107; 106, preferably at the rear end 107, and at the other end, preferably at the front end 106, statically, i.e. in a fixed relative circumferential position between the tensioning strip 111 and the respective end 107; 106, and the spacing, i.e. the variable relative circumferential position between the tensioning strip 111 and the respective other end 106; 107, can be varied by means of an adjustment mechanism 109. This means that, for example, by means of an adjustment, the engagement point and thus also the respective end 106; 107 can be moved closer to the tensioning strip 111 or, for example, by means of an elastic restoring force in the annular element 31 can be returned to the starting position again.

[0117] For the static connection, a positive fit effective in the circumferential direction is provided, for example, by means of an active stop pair between the respective end 107, 106 and the tensioning strip 111. The stop pair 106, 107 is formed, for example, by the opposite faces of a hook-shaped projection on the tensioning strip 111 and a hook-shaped projection 117 engaging in the opposite direction therein, for example, an active suspension edge 117, on the end 107 of the ring element 31.

[0118] In a preferred embodiment, the engagement position of the adjustment mechanism 109 on the relevant end 106; 107 is observed in the circumferential direction, along a straight line or at least at a position where a tangent on the circumference of the drum inner body 32 extends parallel to the adjustment direction of the adjustment mechanism 109 with a deviation of no more than 5°. This makes it possible that the end 106; 107 pulled by the adjustment mechanism 109 is loaded with force in principle in the tangential direction within the small adjustment range that exists, thereby eliminating radial deformation that may occur due to the direction of the force deviating from the tangent.

[0119] Although it can also be realized in another way in principle, the adjustment mechanism 109 can be formed directly in the end region of the ring element 31, preferably by means of threaded drives 113, 114 supported on the tensioning strip 111 and, for example, manually operable, such as a threaded rod 113, in particular a screw 113, which is rotatably mounted in the tensioning strip 111, and a corresponding thread 114, such as a threaded sleeve 114, or preferably in a tensioning mechanism 116 which engages on the ring element 31 and can be changed in position by means of the threaded drives 113, 114 in the adjustment direction of the threaded drives 113, 114, wherein the tensioning mechanism 116 is designed and arranged to match the relevant end 106 by means of stop faces acting in the circumferential direction. The stop pair is formed, for example, by the opposing faces of the tensioning mechanism 116 designed as a pulling strip 116 and a hook-shaped projection 118 accommodating the tensioning strip 116, for example as a suspension edge 118 on the ring element 31.

[0120] In an advantageous improvement, when viewed from a cross section extending perpendicularly to the drum axis, the tensioning strip 116 is at least partially sunken into a corresponding recess 122 or multiple recesses 122 in the tensioning strip 111 in shape and cross-section, thereby ensuring the movement of the tensioning strip 116 along the adjustment direction guided by the recess 122.

[0121] In principle, for each annular element 31 to be fixed, a corresponding tensioning strip 111 and / or a corresponding assigned tensioning device 116 can be provided. However, in a preferred embodiment, viewed in the axial direction of the drum 26, tensioning strips 111 are provided on a plurality of or all supporting elements 31 arranged on the drum inner body 32, and / or tensioning devices 116 extending in the axial direction of the drum 26 on a plurality of or all supporting elements 31 arranged on the drum inner body 32. In this case, a fixed number or spatial allocation of a plurality of adjusting devices 109 or screw drives 113, 114 assigned to one annular element 31 is no longer necessary. In this case, regardless of the number and position of the annular elements 31, a fixing device can be obtained, and a continuous or possibly partial tensioning device 108 cooperates with the annular element to clamp the tensioning device. In particular, one of the above would also be a tensioning device 108 without a tensioning strip 116 , namely due to the adjustment mechanism 109 engaging directly in the ring element 31 which is not well suited for continuous positioning work, since the possible positions depend on the hole spacing of the threaded rod 113 .

[0122] The tensioning strip 111 can be arranged and designed in such a way that the tensioning strip simultaneously forms the bottom support of a one-piece or multi-piece tensioning strip. Here, for example, a bearing 121 carrying a gripper shaft 119 is arranged on the tensioning strip 111 forming the bottom support.

[0123] In a preferred embodiment, such a roller 26 is a component of the above-mentioned machine 01 and / or is particularly advantageously associated with one or more schemes for the adjustability of the individual magnet elements 24 on the corresponding magnet element carrier 37 in the axial and / or circumferential direction and / or for the formation of the above-mentioned action unit 36 ​​with the corresponding magnet elements or suction elements 24; 34 and / or for the clamping of the individual magnet elements 24 or their retaining members 28 or magnet element carriers 37 on the annular element 31.

[0124] In principle, independently of the arrangement of the magnet element 24 in the above-mentioned structural unit 36 ​​and / or independently of the adjustability in the axial direction and / or independently of the adjustability in the circumferential direction and / or independently of the clamping device for clamping the magnet element 24 or the retaining member 29 or the structural unit 36 ​​and / or independently of the above-mentioned scheme for fixing the annular element 31 with a tensioning device, but preferably in combination with one or more of the mentioned advantageous embodiments, in a preferred embodiment, the drum 26, in particular the magnet drum 26, is implemented with a suction opening 42 and a corresponding pipeline connection connected to a suction air source or an air pressure drop, so that the suction opening 42 is connected to the suction air source or the air pressure drop only when passing through or sweeping a defined or definable angular phase, i.e. a defined or definable angular range around the rotation axis of the drum 26 that is less than 360°, and this angular range or this angular phase is preferably variable in its position and / or size in the circumferential direction. Here, a pipeline interface 123, in particular a rotating through-hole 123, is provided, and when a low pressure is applied to the input side, the part or a portion of the suction opening 42 arranged on the circumference of the drum body 26 can be loaded with low pressure at a rotational phase through the drum 26, for example, also referred to as an effective rotational phase due to the application of low pressure, wherein the rotating through-hole 123 is preferably adjustable in an angular sector Δφ, also referred to as a through angle sector Δφ, for determining the position and / or size of the effective rotational phase for the passage of suction air.

[0125] Here, the suction openings 42 are arranged in individual segments Δ on the circumference of the drum 26, for example in a circumference covering at least half of the drum circumference or at least in a circumference segment. x , i.e. a partial segment of the circumference or said circumferential segment (see e.g. Figure 5 ) is arranged in the following manner: the suction openings 42 or the suction openings 42 groups are advantageously arranged in a plurality of segments Δ following one another in the circumferential direction of the drum 26 x At least one of the following, for example an angular segment or an annular segment Δ x , can be independent of the adjacent segments Δ in the circumferential direction x The low pressure or suction air can be brought in or out of the pipeline connection with the suction air source or the air pressure drop. For this purpose, the angular segments Δ that can be loaded separately from each other in the drum 26 x For example, the vacuum or suction air can be applied via the individual line paths. This can be achieved, for example, by means of a structure for conducting the suction air which is segmented accordingly in the circumferential direction, for example, in an advantageous embodiment, by means of individual segments 45 for segmented conduction of the suction air, for example, in the above-described design, by means of groups of suction openings which open into the individual chambers 55.

[0126] For conducting the suction air, the suction opening 42 or the group of suction openings is connected in pipelines via corresponding lines, channels and / or chambers in the drum 07 to the above-mentioned rotary perforation 123, which has a part 124 fixed relative to the drum and rotating together, for example a rotor 124, also referred to below as the rotary perforation 123, and a part 126 fixed relative to the frame, depending on the operating situation, for example a stator 126, also referred to below as the rotary perforation 123. In the assembled state, the stator cooperates with the rotor 124 to conduct the suction air within an angular sector Δφ, in particular in relation to the position about the axis of rotation of the rotor 124 or the drum 26, and is connected in pipelines on its suction side, i.e. downstream of the suction-side outlet of the rotary perforation, to a suction air source in the above-described manner or can be connected in pipelines to the suction air source.

[0127] In this case, viewed in the circumferential direction of the drum 07, a plurality or all of the angular segments Δ x The suction openings 42 or groups of suction openings 42 are connected to the rotating part 124 of the rotary perforation 123, which is particularly designed as a multi-channel part, and corresponding openings, such as channel openings, of the passage openings 127 of the rotor 124, for example, by means of corresponding segments 45 for conduction, in sections, through separate pipeline paths, and can thus be acted upon by suction air in sections, separated from each other, through the corresponding channel openings 127 and the associated pipeline paths. The channel openings 127 are preferably arranged off-center, in particular concentrically around the axis of rotation of the drum 26 or an axis coinciding with the axis of rotation of the drum 26, and, viewed in the circumferential direction, are arranged in angular segments Δ corresponding to the sequence and / or number. x Or corresponding segments 45 are provided with the same order and / or number.

[0128] The rotary passage 123 is preferably arranged with its part 124 fixed to the drum in a rotationally fixed manner at the end on a drum journal 128 formed by a lateral shaft end 128 of the shaft 32 or in another way, in particular laterally to the drum end and / or outside the drum shell. In this case, the passage opening 127 can in principle be arranged on the circumference of the rotor 124 and cooperate with a recess on the inner circumference of the stator 126 surrounding the rotor 124, or vice versa. However, in the embodiment shown here and preferred, the passage opening 127 is arranged on the end and in the above-described manner on the rotor 124 eccentrically and in particular concentrically with the axis, and cooperates at the end with one or more eccentrically arranged recesses 129 of the stator 126 for the conduction of the suction air or the vacuum. The stator is connected or connectable to a suction air source or an air pressure drop via corresponding line paths on the suction side and is arranged eccentrically in such a way that the stator can be at least partially aligned with the angular segment Δ to be acted upon by the suction air by relative twisting of the rotor 124 and the stator 126 about the axis of rotation of the drum 26 or the axis of the drum 26 coinciding with the axis. x Each passage opening 127 of the segment 45 at least partially overlaps. When a passage opening 127 at least partially overlaps one or more recesses 129, in the relevant angular segment Δ x Or in the corresponding segment 45 , the suction opening 42 is or can be loaded with suction air or low pressure.

[0129] In a preferred embodiment, the non-rotatable stator 126 is adjustable in its rotational position about the axis of rotation of the drum 26 or an axis coinciding therewith, depending on the operating situation, so that one or more recesses 129 cooperating with the passage opening 127 for the conduction can be varied about the axis of rotation. If a recess 129 or a group of recesses 129 extending on a circular arc segment on the stator 126 is now opposite a group of passage openings 127 arranged eccentrically on the rotor 124 and arranged so as to overlap in the above-described manner by relative operation, then by rotating the stator 126, the angular position in which the passage opening 127 enters the covering area with the recess 129 or recesses 129 can be changed. In this form of the stator 126 or the rotary lead-through 123 comprising such a stator 126, the angular position resulting from the overlap also changes to the same extent when the stator 126 rotates. By adjusting the angular position of one or more recesses 129 cooperating with the passage opening 127 for conduction by means of the rotating stator 126, an angular segment Δ through which suction air or low pressure can be applied is formed. xOr, under the premise of a corresponding arrangement of the segments 45 in sequence and / or quantity, the position of the rotation axis of the drum 26 can be changed through the angular sector Δφ and thus also the above-mentioned effective rotational angle phase, in which the suction opening 42 is connected to a suction air source or an air pressure drop through a pipeline when the drum 26 rotates during the passage.

[0130] In a particularly advantageous embodiment, in which the sheet-feeding of, for example, the substrate sheet 02 to be conveyed can be further improved, the stator 126 is designed in multiple parts or in multiple pieces, so that the free cross section of the suction air through the recess 129 or recesses 129 is changed by a relative rotational movement between a first stator part 131, which for example comprises one or more recesses 129, and a second stator part 132, which for example closes a variable part of the recess 129 or recesses 129 to prevent the suction air from passing, depending on the relative rotational position with respect to the first stator part 131. The relative rotational movement is preferably achieved by twisting the second stator part 132, for example about a rotational axis parallel to the rotational axis of the drum 26, in particular aligned with the rotational axis.

[0131] The rotating through-hole 124 is designed in this multi-piece, in particular two-part embodiment in such a way that the positioning of the two stator components 131; 132 enables the start of the effective rotational angle phase, i.e. the rotational angle at which suction starts when the drum 26 rotates, and the end of the effective rotational angle phase, i.e. the rotational angle at which suction ends when the drum 26 rotates, to be selected or adjusted independently of each other within at least one corresponding adjustment range.

[0132] In the first variant shown and preferred (see for example Figures 19 to 21), the first stator part 131 comprises a recess 129 which preferably extends in the circumferential direction over at least a part of its length in the manner of a ring segment and, viewed in the axial direction, is arranged adjacent to the rotor 124 in such a way that the passage opening 127 of the rotor 124 and, in particular, the end-side opening of the ring segment-shaped recess 129 are at least partially directly opposite each other in a corresponding appropriate relative position. In this embodiment variant, the second stator part 132 arranged on the side of the first stator part 131 facing away from the rotor 124 comprises a cover element 133, for example a variable part or a part 124 designed as a ring segment, which is arranged, for example, in a closed circular ring and covers the recess 129 on the side facing away from the rotor depending on the rotational position; and a locking element 134 arranged on one side of the cover element 133 as viewed in the rotational direction, which locks into the ring-segment-shaped recess 129 or at least its ring-segment-shaped segment in a complementary manner perpendicular to the longitudinal direction of the ring segment relative to the cross-sectional contour of the recess 129, so that the locking element prevents the free passage of the suction air in the recess 129 between the covered part and the free part of the recess 129. Embodiments should also be included in this regard, in which, for example due to existing tolerances, a residual amount still passes or can pass. According to the relative rotational position between the first and second stator parts 131; 132, the variable part of the recess 129 is covered on the suction side to prevent the suction air from passing in the axial direction, and the suction air is prevented from passing significantly from the covered part of the recess 129 by the locking element 134 engaging in the recess 129 in the above-mentioned manner. Therefore, the suction air passes through the stator 126 and then through the rotating perforation 123 at least to a large extent only in the covered area of ​​the free recess 129. In addition to the above-mentioned change in the position of the above-mentioned rotational phase around the rotation axis of the drum 26 (within which the suction opening 42 or the segment 45 based thereon is connected to the suction air source or the air pressure drop during the passage when the drum 26 rotates), the size of the passage angular sector can also be changed by the relative rotation of the first and second stator parts 131; 132, and thus the above-mentioned effective passage angular sector can be changed in the circumferential direction.

[0133] In an alternative embodiment variant not shown here, the second stator part 132 with the cover element 133 is arranged directly adjacent to the rotor 124, and the first stator part 131 is arranged on its side facing away from the rotor 124, and as the cover element 133, for example, a ring segment 133 or a disk sector 133 arranged in a ring is provided, but since the cover element 133 is arranged on the side of the rotor 124, the above-mentioned locking element 134 can be omitted.

[0134] In order to adjust the stator 126 or, in the case of a two-part design, the first stator part 131 with at least one recess 129, an adjustment mechanism 136, 141 is provided, for example an adjustment shaft 136, for example in the form of a hollow shaft 136 or a sleeve 136, which is connected to the stator 126 or the first stator part 131 in a rotationally fixed manner, and an adjustment lever 141 is provided, for example, by means of which the adjustment shaft 136 can be pivoted. By pivoting the stator 126 or the first stator part 131, the angular position of the at least one recess 129 can be changed in the above-described manner, and thus the position or effective rotational angle phase through the angular sector Δφ in which the opening is loaded with low pressure or suction air when the drum 26 rotates. In order to improve the reproducibility, for example, a pointer 148 connected to the adjustment lever 141 can be provided, which pointer cooperates with a scale 149 fixed relative to the frame. In the case of a one-piece stator 126, the suction air can be passed, for example, via an actuating shaft 139 designed as a hollow shaft 136. To prevent unintentional adjustment, a clamping element 144, for example in the form of a threaded joint, can be provided, by which the adjusting rod 141 can be optionally fastened against displacement.

[0135] If the stator 126 comprises two stator parts 131, 132 as described above, then further adjustment means 137, 139, for example a further operating shaft 137 connected to the second stator part 132, for example a hollow shaft or slotted shaft 137 for the conduction of the suction-side outlet of the rotary passage 123 formed by the stator 126 and the associated rotor 124, which extends, for example, in the above-mentioned hollow shaft 136, and for example a further adjustment lever 139 are provided, by which, for example, the adjustment shaft 137 can be pivoted. By pivoting the second stator part 132 while the first stator part 131 remains stationary, in the above-described manner, the size of the recess 129 for the cross section through which it is opened can be varied in the circumferential direction, and thus the size of the passage angle sector Δφ of the rotary passage 123 or the effective rotational angle phase, in which the opening is acted upon by the low pressure or suction air when the drum 26 rotates. In order to improve the reproducibility, for example, a pointer 146 may be provided which is connected to the adjusting rod 139 via a sleeve or rod 146 and cooperates with a scale 147 fixed relative to the frame. In order to prevent an unintentional displacement of the adjusting rod 139, a clamping element 143, for example in the form of a threaded joint, may be provided, by which the adjusting rod 141 can be optionally fastened against displacement.

[0136] Between the two adjusting shafts 136; 137, a sleeve fixed relative to the frame can be provided to support the adjusting shaft.

[0137] The suction air is conducted to a pipeline connection in the rotating through-hole 123, for example the associated adjusting shaft 136; 137 is connected in its end region, for example via an air chamber, to a suction air pipeline 142 which in turn is connected to a suction air source or an air pressure drop.

[0138] In the assembled state, the drum 26 is accommodated, for example, in one or more bearing shells 151, which are rotatably supported in the side frame via radial bearings (not visible here), wherein the rotor 124 (see, for example, Figure 4 or Fig.15 ) and the stator 126 (see e.g. Fig.19 or Fig. 20 ) cooperate on the end side in the above-mentioned manner to conduct the suction air.

[0139] The above-mentioned embodiment of the roller 26 with suction openings 42 or a group of suction openings 42 is connected to the suction air source or air pressure drop in a pipeline only during the passage or sweep of the above-mentioned effective angular phase, i.e., a limited or definable angular range of less than 360° around the rotation axis of the roller 26, wherein the angular sector Δφ or the effective angular phase can preferably be varied in the circumferential direction in terms of its position and / or size. Although the above preferred embodiment of the roller 26 as a magnet roller 26 has been explained, other rollers 12; 17; 153, in particular a roller 12; 17; 153 that is effective as a transport roller 12; 17; 153 and, for example, has a holding device 33 for clamping a substrate single sheet 02 on the circumference, can also be used in other particularly advantageous embodiments for a machine 01 for processing and / or handling single sheets of paper, in particular a security machine 01, such as a printing press 01 or in particular a security printing press 01, as long as it can be converted without contradiction.

[0140] Here, the machine 01 can be implemented with a magnet cylinder 26 designed in the above-described manner, for example, in the above-described manner. However, in addition or alternatively thereto, the transport cylinder 17 acting as an impression cylinder 17 in the case of a sheet-like substrate 02 and / or the cylinder 152 acting as a transport cylinder 152 and cooperating with the above-described sensor device 153, for example a camera 153, in particular a line scan camera 153, for example a check cylinder 152 can be designed according to the above-described embodiment with a suction opening 42 or a group of suction openings 42, which are connected to a suction air source or an air pressure drop line only during the passage or sweep through the above-described effective rotational angle phase, i.e., a defined or definable angular range of less than 360° around the rotational axis of the cylinder 26, wherein the rotational angle phase is preferably variable in its position and / or size in the circumferential direction in the manner described in the above-described example using the magnet cylinder 26. All of these rollers 26; 17; 152 have in common that they are components of a device which acts on or checks a substrate sheet 02 and which requires particularly secure placement and an optimized sheet transport performance.

[0141] In principle, the adjustability of the effective rotational angle phase in terms of position and / or size, based on an optimizable transport behavior, can also be advantageous for pure transport cylinders 12 which do not have to perform any other functions besides transporting the substrate sheets.

[0142] In a particularly advantageous development, such a rotary perforation 123 is provided for each end face of the drum 26; 17; 152; 12, so that, for example, in the effective rotational angle phase, the associated suction opening 42 or group of suction openings 42 can be charged or can be charged with low pressure from both sides. In this case, the chamber 55 can be charged from both sides or can be divided in the axial direction and charged with low pressure individually.

[0143] Reference numerals list

[0144] 01Machinery, securities machines, printing machines, securities printing machines

[0145] 02Base material, printing material, printing material segment, printing material sheet, base material sheet

[0146] 03 Element

[0147] 04Coating device, printing mechanism, flexographic printing mechanism, screen printing mechanism

[0148] 05-

[0149] 06Coating media, printing inks, paints

[0150] 07Device for aligning magnetic particles in graphic elements, aligning device

[0151] 08 Printing Elements

[0152] 09Printed sheets, securities, banknotes

[0153] 10-

[0154] 11 Printing area

[0155] 12 Feeding device, conveyor roller

[0156] 13 substrate storage, sheet feeder

[0157] 14Printing mechanism cylinders, plate cylinders, screen printing cylinders

[0158] 15-

[0159] 16. Device for generating optically variable image elements

[0160] 17 rollers, impression rollers, transfer rollers

[0161] 18 Printing elements and printing themes

[0162] 19 Drying and / or curing devices, radiation dryers, UV-radiation dryers, UV-dryers, UV-LED dryers

[0163] 20-

[0164] 21 Feeding device, gripper rotary feeder, chain gripper system

[0165] 22Product storage unit, stacking and paper collection device

[0166] 23Dryer, radiation dryer

[0167] 24Action elements, components, magnetic elements

[0168] 25-

[0169] 26 Alignment device, roller, magnet roller

[0170] 27 Magnets

[0171] 28 holder, base

[0172] 29 roller body

[0173] 30-

[0174] 31 Load-bearing elements, annular elements

[0175] 32 roller inner body, roller shaft, shaft

[0176] 33 Holding mechanism, gripper

[0177] 34 suction element

[0178] 35-

[0179] 36Structural unit, action unit, magnet unit

[0180] 37Magnetic element carrier

[0181] 38 Shell

[0182] 39 Suction air channel

[0183] 40-

[0184] 41 Cover element

[0185] 42 suction opening

[0186] 43 Pipeline interface, recess, chamber

[0187] 44 shell surface (belongs to 32)

[0188] 45 segments

[0189] 46 Pipeline interface, suction air opening (belongs to 32)

[0190] 47Through-hole, drilling

[0191] 48 channels, air suction channel

[0192] 49 Pipeline interface, notch

[0193] 50-

[0194] 51 Pipeline interface, notch

[0195] 52 walls

[0196] 53 channels

[0197] 54Through-through, drilling

[0198] 55 Chamber

[0199] 56 walls

[0200] 57 Closing mechanism, valve, sleeve

[0201] 58 Closure mechanism, valve, sleeve

[0202] 59 tools, polygonal wrench

[0203] 60-

[0204] 61 recess

[0205] 62 Wall

[0206] 63 operation interface, inner polygon, inner circumference segment

[0207] 64 support plate

[0208] 65-

[0209] 66 Support elements

[0210] 67 Support surface, surface

[0211] 68 support surface

[0212] 69 support plate 70

[0214] 71 support plate

[0215] 72 Clamping elements, clamping rods, rods

[0216] 73 Clamping elements, clamping rods, rods

[0217] 74 stop surface

[0218] 75-

[0219] 76 slots

[0220] 77 stop surface

[0221] 78 slots

[0222] 79 Spring element, compression spring

[0223] 80-

[0224] 81 axis, pivot axis

[0225] 82 Long Hole

[0226] 83Fixing mechanism, screws

[0227] 84 pipeline

[0228] 85-

[0229] 86 eccentric wheel, shaft segmentation

[0230] 87 Slide seat, bearing element

[0231] 88 operation interface, inner polygon

[0232] 89 axis

[0233] 90-

[0234] 91 eccentric wheel, shaft segmentation

[0235] 92 Slide seat, bearing element

[0236] 93 operation interface, inner polygon

[0237] 94 axis

[0238] 95-

[0239] 96Connecting parts, connecting shaft

[0240] 97 Assembly auxiliary mechanism

[0241] 98 operating arm

[0242] 99First component, socket

[0243] 100-

[0244] 101 Second component, socket

[0245] 102 Driving mechanism, adjusting driving device

[0246] 103 operation interface, rotating handle

[0247] 104 base

[0248] 105-

[0249] 106 at the front end (belongs to 31)

[0250] 107 at the rear end (belongs to 31)

[0251] 108 tensioning device

[0252] 109 Adjustment mechanism

[0253] 110-

[0254] 111 Tensioning slats

[0255] 112Matching components, key

[0256] 113 threaded rod, screw

[0257] 114 thread, thread socket 115

[0259] 116 tensioning mechanism, traction slats

[0260] 117 extension, hook edge

[0261] 118 extension, hook edge

[0262] 119 gripper shaft

[0263] 120-

[0264] 121 bearings

[0265] 122 notch, recess

[0266] 123 pipeline interface, rotating through part

[0267] 124 first component (belongs to 123), rotor

[0268] 125-

[0269] 126 Second component (belonging to 123), stator

[0270] 127 channel opening

[0271] 128 shaft end, roller journal

[0272] 129 recess

[0273] 130-

[0274] 131 first stator component (belongs to 126)

[0275] 132 Second stator component (belongs to 126)

[0276] 133 Cover element, ring segment, disk sector

[0277] 134 locking element 135

[0279] 136 Adjustment shaft, hollow shaft, socket

[0280] 137 Adjustment shaft, hollow shaft, slotted shaft

[0281] 138-

[0282] 139 Adjustment rod

[0283] 140-

[0284] 141 Adjustment rod

[0285] 142 Suction air line

[0286] 143 Clamping element

[0287] 144 Clamping element

[0288] 145-

[0289] 146 pointers

[0290] 147 scale

[0291] 148 pointers

[0292] 149 scale

[0293] 150-

[0294] 151 bearing shell

[0295] 152 roller, conveyor roller, inspection roller

[0296] 153Sensor devices, cameras, line scan cameras

[0297] Δx Segment, Ring Segment, Angular Segment (x=1, 2, 3, …)

[0298] D Production rotation direction

[0299] P particles, pigment particles

[0300] RRotation axis

[0301] TTransmission direction

[0302] Δφ angular sector, through angular sector

Claims

1. A drum (26; 17; 152; 12) of a machine (01) for processing and / or treating sheets of paper, the drum comprising a holding device (33) on the circumference, by which a substrate sheet of paper (02) to be fed on the drum (26; 17; 152; 12) is received at its front end and is held or can be held during the rotation of the drum (26; 17; 152; 12) within the range of the rotation angle between the receiving portion for the substrate sheet of paper (02) and its downstream delivery portion, and the drum having a rotating through-hole (123), which comprises: A rotor (124) rotating together with a drum (26; 17; 152; 12), the rotor being arranged at the end side in a rotationally fixed manner on the shaft end of the shaft (32) of the drive drum (26; 17; 152; 12) or on the drum journal (128) at the end side; and a stator (126) which does not rotate depending on the operating conditions, wherein, via the rotating aperture (123), suction openings (42) or a group of suction openings (42) arranged on the circumference of the drum (26; 17; 152; 12) can be loaded with a low pressure during the passage of the drum (26; 17; 152; 12) through an effective rotational angle phase about its axis of rotation (R), characterized in that the rotating aperture (123) can be adjusted with respect to the size of a passage angle sector (Δφ) determining the size of the effective rotational angle phase and / or with respect to the position of a passage angle sector (Δφ) determining the position of the effective rotational angle phase.

2. The drum according to claim 1, characterized in that: The rotary passage (123) is designed as a multi-channel on the side of the rotor (124), wherein line connections protruding from channel openings (127) of the multi-channel rotor (124) on the drum side lead to different suction openings (42) or groups of suction openings (42) arranged one behind the other in the circumferential direction.

3. The drum according to claim 2, characterized in that: The stator (126) comprises a recess (129) or a group of recesses (129) for guiding suction air through, which recess or group of recesses overlaps with a changing part of a passage opening (127) of the rotor (124) depending on the rotational position of the rotor (124) rotating together with the drum (26).

4. The drum according to claim 2 or 3, characterized in that: The stator (126) is designed with a recess (129) or a group of recesses (129) for conducting suction air in such a way that during rotation of the drum (26; 17; 152; 12) and a rotor (124) of a rotating passage (123) rotating together with the drum, only that part of the passage opening (127) which is connected to the suction opening (42) or a group of suction openings (42) via a corresponding pipeline path always remains in pipeline connection with the free cross section of the recess (129) or the group of recesses (129) of the stator (126), and the suction opening or the group of suction openings is within an angular phase of the drum (26; 17; 152; 12) about its rotation axis (R) which is less than 360°.

5. The drum according to claim 3 or 4, characterized in that: The stator (126) having a recess (129) or a group of recesses (129) is capable of pivoting about the rotation axis (R) of the drum (26) or about an axis coinciding with the rotation axis in order to change the position of the angular sector (Δφ) and thus the position of the defined rotational angle phase and / or to change the position of the channel opening (127) overlapping with the recess (129) or the group of recesses (129) and the suction opening (42) or the group of suction openings (42) connected to the channel opening pipeline.

6. The drum according to claim 1, 2, 3, 4 or 5, characterized in that The stator (126) is designed as a multi-part stator (126) having a first stator part and a second stator part (131; 132), wherein the first stator part and the second stator part are both adjustable in their rotational position relative to each other and relative to the rotational axis around the rotational axis of the drum (26; 17; 152; 12) or around an axis coinciding with the rotational axis.

7. The drum according to claim 6, characterized in that The position and size of the angular sector (Δφ) for determining the size and position of the effective rotational angle phase and / or the start and end of the effective rotational angle phase can be selected or adjusted within at least one corresponding adjustment range by positioning the two stator parts (131; 132) relative to each other and in their corresponding angular positions around the rotation axis or around an axis coinciding with the rotation axis.

8. The drum according to claim 3, 4, 5, 6 or 7, characterized in that The stator (126) is designed as a multi-part stator (126), which has a first stator part (131) including a recess (129) or a group of recesses (129) and a second stator part (132) including a cover element (133), wherein the first stator part and the second stator part (131, 132) are arranged so as to be variable in terms of their relative rotational position in order to change the size of the angular sector (Δφ) and thus the size of the defined rotational phase and / or to change the size of the free channel cross section through the recess (129) and thus change the ratio of the channel opening (127) that overlaps with the recess (129).

9. The drum according to claim 8, characterized in that The second stator component (132) is pivotable relative to the first stator component (131) and / or comprises a locking element (134) engaging in a recess of the first stator component (131), the locking element separating a portion of the recess (129) not covered by the cover element (133) from a covered portion of the recess (129).

10. The drum according to claim 6, 7, 8 or 9, characterized in that The second stator component (132) can be pivoted relative to the first stator component (131) and / or around the rotation axis (R) of the drum (26) or around an axis coinciding with the rotation axis by means of an adjusting mechanism (137, 139), and / or the first stator component (131) can be pivoted around the rotation axis (R) of the drum (26) or around an axis coinciding with the rotation axis and / or relative to the second stator component (132) by means of an adjusting mechanism (136, 141).

11. The drum according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, characterized in that The stator (126) can be pivoted about the rotation axis (R) of the drum (26) or about an axis coinciding with the rotation axis by means of an adjusting mechanism (136, 141).

12. The drum according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or 11, characterized in that The drum is designed as a magnet drum (26) which has n×m (where n, m∈N) magnet elements (24) arranged in a matrix in its outer circumferential region, the magnet elements being arranged in rows extending parallel to the axis and in columns extending in the circumferential direction.

13. The drum according to claim 12, characterized in that A plurality of or all of the magnet elements (24) in a row extending in the circumferential direction are arranged at or on a corresponding, open or closed, annular support element (31) accommodated on a drum shaft (32), wherein the annular support element (31) comprises a plurality of chambers (55) in a posteriorly successive manner as viewed in the circumferential direction, the plurality of chambers being independently connected to a rotor (124) of a rotating through-hole (123) and to at least one group of circumferentially open suction openings (42) via corresponding pipeline paths.

14. The drum according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13, characterized in that In the shaft (32) carrying the roller (26; 17; 152; 12) or in the roller journal (128) at the end, a plurality of channels (48) leading into the interior of the roller are provided, which channels are connected to the channel openings (127) at the end of the rotor (124) by pipelines.

15. A machine (01) for processing and / or treating a substrate (02) in the form of a single sheet, comprising: A substrate reservoir (13); at least one printing unit (04), by means of which a substrate (02) guided through the machine (01) on a transport path is printed in a matrix-like manner at least on a first side and / or can be printed with a number of m columns and a number of n rows of printed sheets (09); a product receiving portion (22), by means of which the processed substrates (02) can be collected in an assembly; and at least one transport roller (26; 17; 152; 12) arranged in the substrate path between the substrate reservoir (13) and the product receiving portion (22), characterized in that the transport roller (26; 17; 152; 12) is implemented according to any one of the rollers (26; 17; 152; 12) according to claims 1 to 14.

16. The machine according to claim 15, characterized in that A transport roller (26) implemented according to any one of claims 1 to 15 is arranged in a substrate path, the transport roller being designed as a magnet roller of an alignment device (07) for aligning magnetic or magnetizable particles (P) arranged between a printing unit (04) and a product container (22), the magnet roller comprising n×m (where n, m∈N) magnet elements (24) arranged in a matrix in the area of ​​its outer circumference, the magnet elements being arranged in rows extending parallel to an axis and in columns extending in a circumferential direction.

17. A machine according to claim 15 or 16, characterised in that A transfer cylinder (17) according to any one of claims 1 to 15 is arranged in a substrate path, which serves as an impression cylinder (17) of a printing unit (04) and serves as a support for a printing unit cylinder (14) and forms a printing position (11) together with the printing unit cylinder.

18. A machine according to claim 15, 16 or 17, characterised in that A transport roller (152) implemented as a roller (152) according to any one of claims 1 to 15 is arranged in a substrate path, which serves as an inspection roller (152) to provide a base for the fed substrate (02) and, as a component of an inspection device, cooperates with a sensor device (153) directed toward the substrate path.

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