DE102011081449B4 - Web printing machine with a roller of a roller set for guiding a strand - Google Patents

Abstract

Web printing machine with at least one printing unit (01), a superstructure (08), a folding superstructure (16) and a downstream processing stage (29), and with a roller (12; 14; 18; 23; 24; 26; 27) in at least one Section of a strand path for guiding a single or multilayer strand (19; 21) between the at least one printing unit (01) and the further processing stage (29), the roller (12; 14; 18; 23; 24; 26; 27) in Its longitudinal extent is arranged perpendicular to the direction of movement of the incoming strand (19; 21), characterized in that the roller (12; 14; 18; 23; 24; 26; 27) as roller (12; 14; 18; 23; 24; 26; 27) of a roller set, comprising - a roller base body (34) which is designed so that on its outer peripheral surface (37) a number m (m ∈ ℕ, m> 1) of first elements (36) can be detached in a non-destructive manner in the peripheral direction can be attached, - a first set with at least m first elements (36) - and at least at least one second set which can be exchanged for the first set and has at least m first elements (36), the first elements (36) of the first and second sets differing in terms of their surface condition and / or their profile for the exchange due to production requirements.

Description

The invention relates to a web printing machine with a roller of a roller set for guiding a strand according to the preamble of claim 1.

Through the DE 10 2004 020 301 B3 a deflecting roller is known in a superstructure of a folder of a rotary printing press, the roller having a corrugated profile on the circumference, which is formed by a flat material stretched over two circular disks.

The DE 41 00 078 A1 relates to a deflecting rod in a turning bar system for deflecting a film web, the film web running obliquely over the roller. In order that the film web guided at an angle over the roller can describe the helical transport path, protruding elements are provided on the surface of the roller, which are freely movable in the axial direction.

Through the DE 10 2009 001 606 A1 a web guide roller is known, on the outer surface of which a plurality of brushes spaced apart in the circumferential direction is provided. In one embodiment of the roller, the brushes are arranged on a sleeve element which is pushed onto a base body and is detachably fastened.

In the DE 10 2007 039 487 A1 web guide rollers for guiding multilayer web strands are disclosed which have a corrugated, tooth-shaped or polygonal outer circumferential line. Such a web guide roller is arranged in a superstructure between the printing unit and the formers.

The DE 44 07 828 A1 discloses a roller of a textile treatment machine, preferably a cloth washing machine, the outer surface of which is made of wood. In order to make them simple and cost-saving to manufacture and repair, the surface is formed by longitudinal strips, which are positively and releasably arranged on a support body. The DE 198 46 338 A1 discloses a washing or flexing roller with a wooden covering, as is used in a washing or flexing machine for cloth treatment.

Through the DE 10 2009 030 829 A1 discloses a roller for centering, spreading and / or straightening a textile web, which is arched and which has elastic, axially movable connecting bands on its surface.

The DE 10 2004 033 912 A1 relates to an offset printing of a web-fed rotary printing press with a transfer cylinder, on the circumference of which blankets are to be detachably attached.

Through the DE 31 51 283 C1 discloses a strand guide in a folder, in the strand guide path of which a pair of guide rollers are arranged, which are to be set up by attaching a bar to one of the rollers to form a punching tool.

In the DE 31 46 208 A1 discloses a guide roller in the strand path of a folder, which can be equipped with an embossing stamp.

The invention has for its object to provide a web printing machine with a roller of a roller set for guiding a strand.

The object is achieved by the features of claim 1.

The advantages that can be achieved with the invention are, in particular, that the detachable design of the elevations and / or depressions effective for the strand transport on a roller of a roller set enables simple and inexpensive replacement. This enables an optimal adaptation to the special requirements in individual cases to be carried out without having to keep complete rolls of various types available. Roller sets with at least two sets of elements are particularly advantageous in connection with wear-related replacement and / or adaptations to changing requirements.

In the advantageous embodiment with first and second elements for the elevations or depressions on a roller of a roller set, the conveying behavior of the roller can be influenced directly via the configuration of the first elements, and indirectly via the configuration of the second elements and their relative strength to the first elements and thus be set.

It is also advantageous that - without having to replace the entire roller of a roller set - a different conveying behavior can be achieved by elements with different surface designs, for example via the outer profile design and / or a variation in the surface roughness.

Due to several elements that can be installed independently of each other, a roller does not have to be accessible from the front, nor does it have to be removed.

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

• 1 eine schematische Darstellung für ein Beispiel einer Rollendruckmaschine;
• 2 ein Beispiel für die Ausführung eines Falzüberbaus in Form eines Trichteraufbaus;
• 3 ein erstes Ausführungsbeispiel für die Ausführung einer Walze in einer ersten Variante mit polygonaler Außenumfangsfläche des Walzengrundkörpers;
• 4 eine Querschnittdarstellung für die Walze aus 3;
• 5 eine Variante für die Ausbildung eines Walzengrundkörpers mit kreisförmiger Außenumfangsfläche;
• 6 eine Variante für die Ausbildung eines Walzengrundkörpers mit durch plane Flächenabschnitte unterbrochener kreisförmiger Außenumfangsfläche;
• 7 ein weiteres Ausführungsbeispiel für die Ausführung der Walze mit sich auf der Außenumfangsfläche direkt aneinander anschließenden Elementen;
• 8 eine exemplarisch dargestellt Ausführungsvariante für die Befestigung von Elementen auf der Außenumfangsfläche;
• 9 ein Ausführungsbeispiel für die Ausführung der Walze mit sich auf der Außenumfangsfläche abwechselnden ersten und zweiten Elementen.;
• 10 eine Querschnittdarstellung gemäß dem Beispiel aus 9.

Show it:

• 1 a schematic representation of an example of a web printing press;
• 2 an example of the execution of a fold superstructure in the form of a funnel structure;
• 3 a first embodiment for the execution of a roller in a first variant with a polygonal outer peripheral surface of the roller base body;
• 4 a cross-sectional view for the roller 3 ;
• 5 a variant for the formation of a roller body with a circular outer peripheral surface;
• 6 a variant for the formation of a roller body with a circular outer peripheral surface interrupted by flat surface sections;
• 7 a further embodiment for the execution of the roller with directly adjoining elements on the outer peripheral surface;
• 8th an exemplary embodiment shown for the attachment of elements on the outer peripheral surface;
• 9 an embodiment for the execution of the roller with alternating first and second elements on the outer peripheral surface .;
• 10 a cross-sectional view according to the example 9 ,

A web printing machine, in particular web-fed rotary printing machine, has at least one printing unit 01 on, through which a z. B. from a reel changer 06 developed path 02 ; 03 can be printed on one or both sides with printed images.

The at least one printing unit 01 is in the preferred embodiment of a printing press designed as a newspaper printing press one of several one above the other in a so-called printing tower 04 arranged printing units 01 through which the train 02 ; 03 , e.g. B. a paper web 02 ; 03 from an uncoated newspaper, can be printed on both sides in multiple colors. In the design of the printing press as a newspaper printing press, there are advantageously a number of such printing towers 04 for printing on multiple webs 02 ; 03 provided side by side, z. B. several lanes 02 ; 03 or more from these tracks 02 ; 03 partial webs obtained by longitudinal section 02.1 ; 02.2 ; 03.1 ; 03.2 can be combined into multilayer strands for subsequent processing.

The printing units 01 of the printing tower 04 or the printing towers 04 are z. B. n-page width, with n ∈ ℕ, n> 1. This designation characterizes the printing units 01 or the pressure tower 04 or the printing press with regard to its nominal width, based on the page width of a standard production specified for the printing press, for example at least two-sided, in particular four, possibly five or particularly six-sided, based on a standard newspaper product to be produced with the printing press. In addition, deviating special productions with different page widths can be provided.

That through the Duck Tower 04 guided and printed, especially n-page width, web 02 ; 03 is downstream of the last one by train 02 ; 03 interacting printing unit 01 , ie the last printing point, for example via at least one roller 07 , e.g. B. pull roller 07 a pulling device, in a superstructure 08 guided. In one embodiment of the printing press, e.g. B. with multiple-width printing units, ie a width for printing on the web 02 ; 03 side by side with more than two, e.g. B. with four or even six, printed pages, can be in the superstructure 08 a slitter 09 and at least one turning deck 11 be provided, with the slitter 09 the multi-wide web 02 ; 03 in broad sections 02.1 ; 02.2 ; 03.1 ; 03.2 , in short partial lanes 02.1 ; 02.2 ; 03.1 ; 03.2 , can be cut, and if necessary by the at least one, for. B. two turning bars having turning deck 11 a partial web 02.1 ; 02.2 ; 03.1 ; 03.2 laterally offset, for example over another partial web 02.1 ; 02.2 ; 03.1 ; 03.2 , can be performed.

The, from z. B. one or more printing towers 04 originating, orbits 02 ; 03 or partial webs 02.1 ; 02.2 ; 03.1 ; 03.2 are then over at least one roller 13 ; 14 on a fold superstructure 16 , e.g. B. on a funnel structure 16 with one or more formers 17 or on one as a magazine structure ( 16 ) with a plurality of foldable magazine superstructure 16 , guided.

Multiple lanes 02 ; 03 or partial webs 02.1 ; 02.2 ; 03.1 ; 03.2 can in one version of the superstructure 08 even before entering the rebate superstructure 16 , e.g. B. before emergence on a funnel structure 16 directly upstream roller 12 ; 18 , e.g. B. a particularly positively driven hopper roller 12 and / or an in particular positively driven hopper inlet roller 18 or a roller 18 a multi-roll, for example two-roll, funnel inlet, can be combined. This is in 1 exemplary for the partial web 02.2 shown, the z. B. on a roller 13 with the partial web 02.1 summarized, and then for example together with at least the partial web 02.1 in a multi-layer strand in this case 19 z. B. on another roller 14 the fold superstructure 16 is forwarded. Here, at least one roller 13 ; 14 of the superstructure 08 from a multi-layer strand 19 some embraced. At this point, a “multilayer strand 19” thus comprises a bundle of a plurality of webs which are guided one on top of the other but are not interconnected 02 ; 03 or partial webs 02.1 ; 02.2 ; 03.1 ; 03.2 ,

In another version of the superstructure 08 become webs 02 ; 03 or partial webs 02.1 ; 02.2 ; 03.1 ; 03.2 for example, separate from the entrance area of the rebate superstructure 16 (e.g. dashed in 1 for partial web 02.2 ) and only in the entrance area of the rebate superstructure 16 , e.g. B. on the or a hopper inlet roller 18 the as a funnel structure 16 trained folding superstructure 16 , or only in the rebate superstructure 16 itself, e.g. B. on the magazine turning rods of the fold superstructure designed as a magazine structure 16 downstream roller, to multilayer strands 21 summarized and / or shaped, e.g. B. longitudinally folded.

The one as a funnel structure 16 trained fold superstructure 16 has one or more formers 17 , advantageously at least two, e.g. B. at least two juxtaposed and / or at least two superimposed former 17 , on. In a preferred embodiment, it has at least two folding formers arranged next to one another 17 on. From the respective former 17 at least one strand path leads over rollers 22 , e.g. B. folding rollers 22 and one or more, for example partially wrapped, rollers 23 ; 24 ; 26 ; 27 , e.g. B. motor-driven and / or only by friction with the strand 21 driven pulling and / or deflecting rollers 23 ; 24 ; 26 ; 27 , to an entrance 28 , e.g. B. a pulling device 28 one the rebate superstructure 16 downstream processing level 29 , e.g. B. one as a cross folder 29 with integrated or upstream cross-cutting device or as a plano boom with cross-cutting device, further processing stage, here, for example, as a pulling device 28 trained entrance 28 For example, in the case of pre-arrangement, the functional level of the processing stage 29 is struck. For example, a web running into the funnel inlet 02 ; 03 or partial web 02.1 ; 02.2 ; 03.1 ; 03.2 over the former 17 guided and folded lengthways or, if necessary, by means of a slitter 31 (shown in dashed lines) previously made funnel middle cut two halves one above the other. The resulting multilayer strand 21 z. B. by folding rollers 22 and for example via at least one as a positively driven pull roller 23 (or pair of pull rollers). In the further course, the respective strand 21 or a single or multi-layer sub-strand divided therefrom over, for example, non-driven rollers 24 , e.g. B. unpowered deflecting rollers 24 , and other positively driven rollers 26 , e.g. B. positively driven deflection rollers 26 , downstream rollers 27 , e.g. B. positively driven deflection rollers 27 are fed where several of these multilayer strands 21 to the rebate superstructure 16 leaving overall strand 40 be summarized. In the example, examples are positively driven, a multi-layer strand 19 ; 21 leading rollers 12 ; 18 ; 23 ; 26 ; 27 Marked out in gray. A forced drive means a motorized rotary drive, the roller in question 12 ; 18 ; 23 ; 26 ; 27 can have its own drive motor or in the drive system with one or more other positively driven rollers 12 ; 18 ; 23 ; 26 ; 27 can stand. The positively driven roller 12 ; 18 ; 23 ; 26 ; 27 has face, z. B. on an end face of a roller body 34 (see below), a cone 35 on which rotates in the printing press or the folding superstructure 16 is stored, and via which it can be driven or driven in rotation. Even the friction-driven rollers 14 ; 24 can a rotatably mounted pin 35 have, but can be rotatably mounted in another embodiment on a shaft fixed to the frame.

With regard to the fold structure 16 is called the "multilayer strand 21 “Thus one strand, for example 21 of several arranged on each other, but not connected to each other, for. B. funnel-cut layers, one strand 21 which after the longitudinal folding of at least one web 02 ; 03 or partial web 02.1 ; 02.2 ; 03.1 ; 03.2 at least two layers of a same longitudinally folded web arranged on top of one another and connected on a fold back 02 ; 03 or partial web 02.1 ; 02.2 ; 03.1 ; 03.2 has, as well as a strand 21 , which several by longitudinal folding several on top of one another on a same former 17 guided tracks 02 ; 03 or partial web 02.1 ; 02.2 ; 03.1 ; 03.2 generated, connected in pairs on the fold back or unconnected due to a funnel center cut layers. The multi-layer strand can also 21 as a mixture of the layers mentioned, e.g. B. with both unconnected individual layers and layers connected to the fold back, be formed.

In principle, however, one or more can be placed before the fold superstructure 16 or before it enters the superstructure 08 combined multi-layer strands 19 a multi-layer strand 21 or several multilayer strands 21 of the rebate superstructure 16 represent, or such a strand 19 or such strands 19 can in the rebate superstructure 16 to one or more even stronger multi-layer strands 21 be brought together.

When wrapping or partially wrapping a roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 through a perpendicular to the roller axis R , ie to an axis of rotation R the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 , on the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 accumulating multilayer strand 19 ; 21 caused - especially with strands 21 with a higher number of layers, such as four or more layers - the different path between one with the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 directly interacting inner, and a more external, z. B. outermost layer, to problems that affect, among other things, the formation of folds and in the worst case even by breaking a web or one or more layers. To counteract this problem, rollers with a corrugated surface have been proposed, which, for. B. offer space in the depressions for a temporary evasion of inner layers.

In the solution proposed here for guiding a multi-layer in particular, perpendicular to the roller axis R on the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 ascending strand 19 ; 21 , points the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 on its lateral surface 37 viewed in cross-section, an outer circumferential line deviating from a circular line, with a lowering in the circumferential direction 32 spaced surveys 33 on. The surveys 33 are preferably dimensionally stable, ie with respect to the strand to be guided 19 ; 21 unyielding, educated. The roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 has a roller base for this purpose 34 on which, in the circumferential direction, a plurality of (for example at least six, preferably at least ten) first, in particular dimensionally stable elements 36 , e.g. B. conveyor bars 36 , such on its outer peripheral surface 37 , e.g. B. lateral surface 37 , are fixable or fixable, that they are also non-destructive from the outer peripheral surface 37 of the roller body 34 are solvable. When assembled, they form the first elements 36 each by at least one peripheral section 38 their outer surface 39 the surveys 33 on the circumference of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 out. In the example, the outer surfaces describe 39 of the elements 36 essentially a circular segment line with respect to the roller axis over its entire length in the circumferential direction R , so that the peripheral section forming the elevation 38 over the length of the element 36 extends in the circumferential direction.

The conveyor bars extending in the axial direction 36 can each be in one piece over the effective length of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 continuously, or in one variant each by several in the longitudinal direction of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 element or strip sections arranged next to one another can be formed, in which case a group of strip sections in the assembled state is a conveyor strip 36 form.

In a structurally simple version (see e.g. 3 to 6 ) the sinks 32 be formed by the first elements 36 in the assembled state in the circumferential direction of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 spaced from each other on the outer peripheral surface 37 are arranged, the sinks 32 through free surface sections 42 the outer peripheral surface 37 of the roller body 34 between two first elements 36 are formed.

The outer circumferential or outer surface 37 of the roller body 34 can be viewed in an advantageous embodiment in a cross-section perpendicular to the axial direction, a profile, for. B. polygonal profile, one, in particular regular, polygons, with on outwardly facing surface sections 41 ( 42 ) at least the first elements when assembled 36 are arranged. The roller body 34 facing surfaces of the elements 36 (46) can then be formed with a flat surface. In a first embodiment variant, the polygonal profile can be produced by milling a previously cylindrical base body to produce the flat surface sections 41 ( 42 ) on the roller body 34 , and in a second variant by a sheet metal construction, for. B. by a corresponding to the required, here z. B. plan area sections 41 ; 42 curved and facing z. B. welded sheet.

In a reverse version of this (see e.g. 5 ) can the outer circumferential or lateral surface 37 of the roller body 34 circular, e.g. B. as an outer peripheral surface 37 be formed of a cylindrical base body, the roller base body 34 facing surfaces of the elements 36 (46) then concave, in particular with one towards the outer peripheral surface 37 corresponding radius of curvature are formed. On the cylindrical outer peripheral surface 37 are then, for example, no surface sections that actually stand out due to the geometry 41 ; 42 , but only by the intended or actual arrangement of the elements 36 ( 46 ) “Area sections.” 41 ; 42 " educated.

In a mixed variant (see e.g. 6 ) can be the first elements 36 receiving surface sections 41 flat, and the free surface sections 42 be designed as a segment of a circle. In this embodiment, for example, only one compared to the first example (e.g. 4 ) half the number of millings on the formerly cylindrical base body. Flat and circular segment-like surface sections alternate here 41 ; 42 on the circumference of the roller body 34 from.

In an embodiment variant (see e.g. 7 ) are on the - cylindrical or polygonal - outer peripheral surface 37 a plurality of the same kind of elements 36 arranged directly next to one another in the assembled state in the circumferential direction. The course of the surveys 33 and sinks 32 on the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 This results from a highest point in each case deviating from a segment of a circle segment, in each case at least one with respect to the resulting roller radius, and a shape of the elements which has a different lower point 36 , Each of the elements 36 thus has an elevated peripheral portion 38 and at least one area of reduced height, which then, e.g. B. together with an area of an adjacent element 36 , as a depression 32 is effective.

In one embodiment variant, not shown, several surveys can 33 and sinks 32 circumferentially on the same element 36 be arranged, in which case one versus the number of surveys 33 less number of elements 36 in the circumferential direction of the roller body 34 are to be arranged.

Finally, in a variant of a roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 all dimensionally stable elevations with intervening depressions can be arranged on a single element, which, for example, is wound as a finite element around the circumference of the roller base body and magnetically or mechanically fastened to or on this, or is drawn over the roller base body as a sleeve-shaped element and is at least secured against rotation or will. In this variant, the one mentioned below for the roller set is to be used with the proviso that, in addition to the roller base body, at least two interchangeable sleeve-like elements are provided, which are used in the same way for wear-related replacement, or for adaptation to requirements with a different profile or with a different height Elevations and / or sinks are formed.

The one or more surveys 33 having elements 36 (46) or element sections are form-fitting and, when assembled, are preferably relatively immovable with the roller base body 34 connected or connectable. When assembled, they are rigid in the radial direction, ie they are guided by a strand 19 ; 21 not deformable, and define for the guided strand 19 ; 21 a fixed roll radius. In an advantageous embodiment, the attachment is carried out by a screw connection, z. B. a screw 43 from an outside of the element in question 36 ( 46 ) through this into a corresponding hole 44 , e.g. B. tapped hole, in the roller body 34 intervenes. In an alternative version (see example e.g. 8th ) the form fit - regardless of the above-mentioned patterns and / or surface designs - also by corresponding component parts, e.g. B. in the manner of a tongue and groove connection or dovetail connection, be produced by, for example, one on the element 36 (46) arranged fitting 49 in a correspondingly designed groove 51 in the roller body 34 intervenes. The groove 51 can be axially on the roller body 34 run with the elements 36 ( 46 ) are to be inserted by an axial movement. In addition, a fuse, e.g. B. a locking pin or a locking screw can be provided, through which the element 36 ( 46 ) can also be fixed in the axial direction after insertion. The attachment is based on the other variants of the surface shaping (polygonal, circular), and in the same way on attachment of second elements ( 46 , see below).

In a variant that deviates from this, the elements can 36 ( 46 ) cohesive, e.g. B. by gluing with the outer peripheral surface 37 be connected. To loosen the elements 36 ( 46 ) without damaging the outer peripheral surface 37 To ensure, an adhesive connection is advantageous in this case, for example, double-sided adhesive strips. Possibly. on the outer peripheral surface 37 and / or on the elements 36 ( 46 ) Remaining adhesive residues can be removed and removed by appropriate means.

In a particularly advantageous embodiment, there are between the first elements 36 second, from first elements 36 different second elements 46 , e.g. B. base strips 46 , non-destructively detachable on the roller body 34 fixed or fixable, which in the assembled state each by at least one peripheral portion 48 their outer surface 47 viewed in the circumferential direction, the depressions 32 on the outer circumference of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 train (see e.g. 9 and 10 ). In the example is the second element 46 z. B. lower over its entire length in the circumferential direction than the first element 36 so that the valley 32 forming peripheral portion 48 extends over the entire length in the circumferential direction. The iVm the variants regarding the polygonal or cylindrical design of the outer peripheral surface 37 or lateral surface 37 (see e.g. 4 and 5 ) together with the corresponding design of the roller base 34 facing surface of the elements 36 ; 46 apply accordingly, with between the first elements 36 now second elements 46 are to be used with the design of their inner surfaces corresponding to the design variant. Also the above-mentioned explanations for fastening the first elements 36 are corresponding to the attachment of the second elements 46 apply.

The first and second elements 36 ; 46 differ in their effective height, ie in the assembled state in the height of their radial to the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 considered the outermost point. For example, they differ from each other in their greatest strength in the radial direction and / or in their profile. One of the highest places of the assembled first elements 36 connecting circular line lies further out than one of the highest points of the second elements 46 connecting circular line.

At least the first - and if available z. B. the second - elements 36 ; 46 are preferably made of a macroscopically non-deformable material, for example a hard, e.g. B. relentless plastic, ceramic, a metal or a combination thereof, so formed (at least through the first elements 36 ) for the strand to be conveyed 19 ; 21 results in a fixed effective roller outer radius.

Regardless of the design of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 with second or without second elements 46 can the outside surface 39 , at least in the area of the effective survey 33 forming peripheral portion 38 , with a roughness generated mechanically or by coating, e.g. B. with a roughness of Rz ≥ 80 microns, in particular Rz ≥ 100 microns, are formed. This is particularly advantageous i. V. m. positively driven and / or designed as tension rollers 12 ; 18 ; 23 ; 26 ; 27 ,

The roller is particularly advantageous 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 in the manner of a roller set with the first elements for holding a number of m (with m ∈ ℕ, m> 1, for example: m ≥ 6, preferably m ≥ 10) 36 trained roller body 34 executed, wherein at least a first set of m elements 36 and a second set of m first elements 36 is provided.

One version of the roller set is the execution of the first elements 36 of the first sentence different from the execution of the first elements 36 of the second sentence. For example, the first items 36 of the first and the second sentence for the exchange due to production requirements in their surface condition, in particular in the roughness, and / or in their profile, in particular in their height and / or length of a peripheral section 38 constant maximum radius'. The profile and / or the surface quality and / or the height of the first element 36 can influence the funding behavior. For different conditions or requirements, the same or at least the same basic roller body can then be used 34 the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 be optimally adapted to the conditions.

Such a second set can be obtained, for example, from the supplier or manufacturer of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 or printing press, or if necessary also be held directly on site in the printing press or printing shop. It can also be provided that the manufacturer of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 or the printing press a plurality of different sets of elements 36 (46) offers, one of the sets being used in the printing press, depending on customer requirements or production requirements.

In a second version of the roller set, the elements correspond 36 of the second sentence for wear-related replacement that of the first sentence before it is used. Such a second set can then be obtained, for example, from the supplier or manufacturer of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 or printing press, or, in particular, be held on site in the printing press or printing shop as an exchange set.

Likewise - for the formation of the roller 12 ; 14 ; 18 ; 23 ; 24 ; 26 ; 27 with first and second elements 36 ; 46 - Two sets of second elements in one version 46 be provided. Here, too, in a first embodiment variant of the roller set, the execution of the second elements 46 of the first sentence different from the execution of the second elements 46 of the second sentence. For example, the second elements 46 of the first and the second sentence for the exchange due to production requirements in their profile, in particular in their height and / or the course of the outer surface 47 differ. The course and / or the height of the second element 47 can influence the leadership behavior of z. T. in the valley 32 immersed inner layers and / or in interaction with the height of the first elements 36 on their funding behavior. to have. In an alternative embodiment, the formation of a first and second set of second elements 46 the above in connection with the wear-related replacement also applies to the second elements 46 apply.

A roller designed as described above is particularly advantageous 23 ; 24 ; 26 ; 27 or a corresponding roller set because of the multi-layer strands present there 21 , e.g. B. funnel strands 21 , for or in the strand path of the rebate superstructure 16 intended. Instead or in addition, however, a roller designed as described above can be used 12 ; 14 ; 18 or a corresponding roller set in the superstructure 08 or in the entrance area of the rebate superstructure 16 be advantageous, in particular if a multi-layer strand is present in at least one production situation 19 is to be expected. This is the case, for example, for printing presses with a larger number, e.g. B. at least three, on the same fold superstructure 16 producing printing towers 04 and / or for printing machines of a multiple width, e.g. B. four- or six-sided, whose superstructure a plurality, for. B. at least two, reversible decks 11 having.

LIST OF REFERENCE NUMBERS

01

printing unit

02

Web, paper web

03

Web, paper web

04

printing tower

05

-

06

reelstands

07

Roller, pull roller

08

superstructure

09

Slitter

10

-

11

turning deck

12

Roller, hopper roller, positively driven

13

roller

14

roller

15

-

16

Folded superstructure, funnel construction

17

formers

18

Roller, hopper inlet roller, positively driven

19

Strand, multilayer

20

-

21

Strand, multi-layer, funnel strand

22

Roller, folding rollers

23

Roller, positively driven, pull roller

24

Roller, deflection roller, not driven

25

-

26

Roller, deflection roller, positively driven

27

Roller, deflection roller, positively driven

28

Entrance, pulling device

29

Postpress stage, cross folder

30

-

31

Slitter (funnel center cut)

32

depression

33

survey

34

Roller body

35

spigot

36

Element, first, conveyor bar

37

Outer peripheral surface, outer surface

38

Circumferential section ( 36 )

39

Outer surface ( 36 )

40

total strand

41

Surface section ( 34 )

42

Surface section ( 34 )

43

screw

44

drilling

45

-

46

Element, second, base bar

47

Outer surface ( 46 )

48

Circumferential section ( 46 )

49

fitting

50

-

51

groove

02.1

Railway, partial railway

02.2

Railway, partial railway

03.1

Railway, partial railway

03.2

Railway, partial railway

R

Roller axis, axis of rotation

Claims (15)

Web printing machine with at least one printing unit (01), a superstructure (08), a folding superstructure (16) and a downstream processing stage (29), and with a roller (12; 14; 18; 23; 24; 26; 27) in at least one Section of a strand path for guiding a single-layer or multilayer strand (19; 21) between the at least one printing unit (01) and the further processing stage (29), the roller (12; 14; 18; 23; 24; 26; 27) in its longitudinal extent is arranged perpendicular to the direction of movement of the incoming strand (19; 21), characterized in that the roller (12; 14; 18; 23; 24; 26; 27) as roller (12; 14; 18; 23; 24; 26; 27) of a roller set, comprising - a roller base body (34), which is designed so that a number m (m ∈ ℕ, m> 1) of the first elements (36) can be released in a non-destructive manner on its outer circumferential surface (37) can be attached, a first set with at least m first elements (36) - and at least one interchangeable second set with at least m first elements (36), the first elements (36) of the first and the second set being intended for exchange based on production requirements differentiate in their surface quality and / or in their profile. Web press after Claim 1 , characterized in that the first elements (36) of the first and second sets of the roller set for replacement due to production requirements differ in their roughness and / or in their height and / or length of a circumferential section of constant maximum radius. Web press after Claim 1 or 2 , characterized in that the roller base body (34) is designed to detachably detachably on its outer peripheral surface (37) in the circumferential direction a number m (m Umfangs ℕ, m> 1) of second elements (46), and that the roller set - a first one Set with at least m second elements (46) - and at least one interchangeable second set with at least m second elements (46). Web printing machine according to one or more of the Claims 1 to 3 , characterized by the formation of the roller (12; 14; 18; 23; 24; 26; 27) of the roller set as a roller (12; 14; 18; 23; 24; 26; 27) for guiding a roller perpendicular to a roller axis (R ) on the roller (12; 14; 18; 23; 24; 26; 27) strand (19; 21) in the web printing machine, the outer peripheral surface (37) of the roller (12; 14; 18; 23; 24; 26; 27) viewed in cross-section has an outer circumferential line deviating from a circular line with elevations (33) spaced apart from one another in the circumferential direction by depressions (32), the plurality of first elements (36) in each case in the assembled state at least one peripheral section (38) of its outer surface (39) forms the elevations (33) on the peripheral line of the roller (12; 14; 18; 23; 24; 26; 27). Web press after Claim 4 , characterized in that the first elements (36) are arranged in the assembled state spaced apart from one another in the circumferential direction on the lateral surface (37). Web press after Claim 4 or 5 , characterized in that the depressions (32) are formed by free sections of the lateral surface (37) between two first elements (36). Web press after Claim 4 or 5 , characterized in that second elements (46) other than first elements (36) can be detachably and non-destructively fixed to the roller base body (34), which in the assembled state in each case viewed through at least one peripheral section (48) of its outer surface (47) in the peripheral direction ( 32) on the outer circumferential line of the roller (12; 14; 18; 23; 24; 26; 27). Web press after Claim 4 , characterized in that the first elements (36) directly adjoin one another in the circumferential direction in the assembled state, the course of the elevations (33) and depressions (32) on the roller (12; 14; 18; 23; 24; 26; 27) is given by a shape of the directly adjoining elements (36) which deviates in the circumferential direction from a segment of a circle segment and in each case has at least one highest and related to the resulting roller radius and a different lower position. Web printing machine according to one or more of the Claims 4 to 8th , characterized in that the first elements (36) have a rough surface, in particular a roughness with Rz 80 80 µm, at least in the peripheral section (38) of the outer surface (39) forming the elevations (33). Web printing machine according to one or more of the Claims 4 to 9 , characterized in that the elements (36; 46) can be connected to the roller base body (34) in a form-fitting manner, in particular by a screw connection (43, 44) or a form-fitting connection of corresponding component parts. Web printing machine according to one or more of the Claims 4 to 10 , characterized in that a lateral surface (37) of the roller base body (34), viewed in cross section, has a profile of a, in particular regular, polygon, on the outwardly facing surface sections (41; 42) of which the elements (36; 46) are arranged. Web printing machine according to one or more of the Claims 4 to 11 , characterized in that the first elements (36) each have in the circumferential direction at least one highest circumferential section (38) in the assembled state, which in the assembled state forms a constant effective roller radius at least over this circumferential section (38). Web press after Claim 7 , characterized in that the first and second elements (36; 46) in their radial Differentiate in the direction of greatest strength and / or in their profile. Web press according to one of the Claims 1 to 13 , characterized in that the roller (23; 24; 26; 27) is arranged in the strand path of a multi-layer former strand (21) between a folding former (17) and the further processing stage (29), which is designed in particular as a transverse folding apparatus (19). Web press after Claim 14 , characterized in that the roller (23; 24; 26; 27) is designed as a positively driven roller (23; 26; 27).

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