EP0999015A2 - Endless cutting apparatus with an integrated blade assembly for rotary printing devices - Google Patents

Abstract

The cutting device has first and second rotating components (20, 27) in which cutting elements (29) are integrated. The rotating components form a cutting region (3) between them. Support bodies (23, 26) are fitted in this region. The second rotating component (27) is of the belt-driven type with a multilaminar structure to receive the cutting elements.

Description

The present invention relates to a web cutting device with an integrated Knife arrangement in a web-fed rotary printing press, according to the preamble of Claim 1.

US 5,107,733 discloses an apparatus for cutting and transporting a Paper web in a folder of a printing press. This device includes a A pair of knife cylinders, through which the web is cut into sections, and one Transport device that transports the web sections away from the knife cylinders. The first knife cylinder has at least one set of grooved strips and the second Knife cylinder has at least one cutting knife, which in the gap between the Knife cylinders hit the anvil of the first knife cylinder and thus the itself cuts through the gap moving web. On the first and the second Knife cylinders each have a large number of strips. The stripes are on the knife cylinders arranged so that they have a temporary reinforcing profile Emboss on each newly formed front part of the web when the stripes go through move the cylinder gap. Located on the first and second knife cylinders each have at least one smoothing surface on the knife cylinders is arranged that the temporary reinforcing profile again from the front part of the Web is removed when the smoothing surface moves through the cylinder gap. At This known solution is the knife arrangement in one of the two knife cylinders molded grooves integrated.

US 5,186,444 relates to a method and an apparatus that a precise web run in a folder through holes punched in the direction of the paper width. The method includes the step of punching one out of the other Web parts shaped layered structure along respective strips of the web parts, a plurality of tongue-like elements on the surfaces of the web parts get caught and protrude from the holes that are simultaneously in the web parts are punched so that the layered web parts on the respective Holding strips of the same together; for the implementation of this procedure is a Device provided. In this known solution, too Cutting knife assemblies assigned to a pair of knife cylinders and on itself the surface of the respective knife cylinder laterally extending recesses integrated.

There is a need to improve cutting performance. This can be done by a Hold down the incoming material web before and after the cutting process become. Several attempts have been made to improve cutting performance Use of other materials, through a better geometry of the device and to improve higher cutting dynamics. It has also tried electrostatic adhesion apply and wave the signatures to give them a corresponding stiffness to lend.

Accordingly, it is an object of the present invention to provide an apparatus create with which the signatures are created and transported be held down from the cutting area in an effective manner so that during the entire transport process of the web / signatures by a folder Rotary printing machine controlled guidance of the same takes place.

According to the present invention, an apparatus for cutting a Material web has a first rotating component and a second rotating component Component with a cutting knife integrated therein, the circumferential Components form a cutting area between them. They are support bodies provided that are assigned to the rotating components in the cutting area.

According to a preferred embodiment of the invention, the first is rotating Component is a conveyor belt that runs in an endless loop. The second circulating component preferably also circulates in an endless loop and has a layered structure, which is described in more detail below. As a support for the first and the second rotating component are advantageously deflecting rollers arranged within the endless loops around which the revolving Moving components. The second circumferential component has openings which integrated into the layered structure during a cutting process Cutting knife protrudes and cuts off a signature.

An advantage of the present invention is the elimination of relative movements of the signatures cut off from the incoming web; so no kicking Relative movements between the cut signatures and / or the Transport straps more open, so that the cut signatures in a precise Position transported to further downstream transport facilities become. Since a supporting body is assigned to the rotating components, the are with the first component interacting cutting knife during a cutting process supported so that a precise lateral section of the web can take place and thus a high quality signature is created.

The first and the second rotating component preferably each have one multi-part structure. The first rotating component is preferred belt-shaped and has a variety of rubber parts, the lateral Cutouts in the belt are inserted. The second rotating component can be made consist of a belt construction, which has a carrier layer with a smooth surface has, which contacts a rotating support body, or a support layer with a serrated surface, the circumferential surface of the support body during a cutting operation contacted. This carrier layer comprises a reinforcing element, which is in Longitudinal direction of the carrier layer, i.e. H. parallel to the transport direction of the signature extends. Such a reinforcing element can consist of a cord or fibers, e.g. B. from Kevlar fibers are made.

The second circumferential belt construction consisting of several layers comprises preferably a mounting groove for the cutting knife, which acts as a T-shaped slot or a laterally extending groove for the knife base of the cutting knife can be. The mounting groove can be used to hold the knife base either on the Carrier layer or below it to be arranged for secure attachment to ensure the cutting elements or the cutting knife. On the carrier layer An elastic, preferably volume-compressible layer can be arranged yields when it comes into contact with an opposite surface, so that the second Belt construction protrudes integrated cutting knife.

The cutting knife can be equipped with a resilient base, which is a protruding movement of the knife tip allows when the knife base with the Surface of the second support body, which in the endless loop of the second orbiting Belt construction is integrated, comes into contact.

The features of the present invention will become apparent in the following description preferred embodiments in connection with the accompanying, below listed drawings explained in more detail.

Fig. 1

eine bekannte Ausführungsform eines Schneidzylinderpaares, bei dem der Nutenzylinder Nutenleisten aufweist;

Fig. 2

einen Transportriemen, der mit Gummiteilen versehen ist;

Fig. 3a

einen Schneidbereich, der von zwei sich stromabwärts bewegenden Riemen bestimmt wird, die jeweils von einem Stützkörper gestützt werden;

Fig. 3b

eine vergrößerte Darstellung des Schneidbereichs der Fig. 3a;

Fig. 4

die jeweiligen endlosen Schleifen, in welchen sich die in Fig. 3a und 3b gezeigten Riemen bewegen;

Fig. 5a

eine erste Ausführungsform eines Schneidmessers, das in einem T-förmigen Schlitz einer Trägerschicht einer Riemenkonstruktion eingebettet ist;

Fig. 5b

ein Schneidmesser, das eine Einkerbung aufweist, durch die sich ein Verstärkungselement erstreckt, das auf einer Trägerschicht der Riemenkonstruktion angebracht ist;

Fig. 5c

einen Querschnitt der Schneidmesseranordnung gemäß Fig. 5b;

Fig. 6a

die Anordnung des Schneidmessers in einer sich in der Trägerschicht der erfindungsgemäßen Riemenkonstruktion erstreckenden seitlichen Nut;

Fig. 6b

die Position des Schneidmessers in der seitlich verlaufenden Nut der Trägerschicht der erfindungsgemäßen Riemenkonstruktion während des Schneidvorgangs;

Fig. 7

eine weitere Ausführungsform einer Integration eines Schneidmessers in eine umlaufende Riemenkonstruktion.

Show it:

Fig. 1

a known embodiment of a pair of cutting cylinders, in which the groove cylinder has groove strips;

Fig. 2

a conveyor belt which is provided with rubber parts;

Fig. 3a

a cutting area defined by two belts moving downstream, each of which is supported by a support body;

Fig. 3b

an enlarged view of the cutting area of Fig. 3a;

Fig. 4

the respective endless loops in which the belts shown in Figures 3a and 3b move;

Fig. 5a

a first embodiment of a cutting knife, which is embedded in a T-shaped slot of a carrier layer of a belt construction;

Fig. 5b

a cutting knife having a notch through which a reinforcing member extends which is attached to a support layer of the belt structure;

Fig. 5c

a cross section of the cutting knife assembly of FIG. 5b;

Fig. 6a

the arrangement of the cutting knife in a lateral groove extending in the carrier layer of the belt construction according to the invention;

Fig. 6b

the position of the cutting knife in the laterally extending groove of the carrier layer of the belt construction according to the invention during the cutting process;

Fig. 7

a further embodiment of an integration of a cutting knife in a circumferential belt construction.

Fig. 1 shows a known cutting cylinder arrangement with a knife cylinder 8 and a grooved cylinder 4 having grooved strips 6, 7. an incoming material web 1 is by a pair of pull rollers 2, which one above the groove cylinder 4 and a knife cylinder 8 existing cutting cylinder pair are arranged in one Cutting area 3 promoted. The knife cylinder 8 comprises a first knife arrangement 12 and a second knife assembly 13. Between the first and the second Knife arrangement 12, 13 are preferably respective envelopes 10 on the Scope 9 of the knife cylinder 8 attached. The first and the second Knife assembly 12 and 13 face each other, so that in a complete Rotation of the knife cylinder 8 two signatures from the incoming material web 1 be cut off. The groove cylinder 4 preferably has two rectangular ones Grooved strips 6, 7, which are opposite each other and each with the first and second knife assembly 12 and 13 of the knife cylinder 8 cooperate. The in Cutting area 3 of signatures 15 cut off from the incoming material web 1 are conveyed into a left and a right transport device 16 and 18. Both Transport devices 16, 18 are each a rotating transport belt 17 assigned to the material web 1 entering the cutting area 3 to continuously transport cut off signatures.

2 shows a first embodiment of a cutting device according to the invention shown, which comprises a conveyor belt, the function of a slot bar or one with the knife arrangement 12, 13 interacting anvil element or rubber part takes over. In this figure, a conventional knife cylinder 8 is also shown, the one moving along the surface 23.1 of a support body 23 Transport belt 20 cooperates. The knife cylinder 8 is with two Knife arrangements 12, 13 equipped and its surface is with two enveloping or Covered parts of the jacket, which are arranged opposite one another. The Knife arrangements 12, 13 each comprise knife bars 22, between which each a knife is attached which cooperates with the transport belt 20 in the manner that the rubber parts 20.1 of the conveyor belt 20 function during the cutting process a grooved strip. The path of movement of the material web is determined by Transport belt 20 determines that in the area above the knife cylinder 8 with Hold down bands 19 cooperate. Below the knife cylinder 8 is one further transport device 24 arranged, the cut signatures 15 to transported for further processing. The knife cylinder 8 comprises cams 41, each are rotatably mounted about an axis of rotation 40. The cams 41 have one Cam surface 42 with a contact part 43. The cams 41 are with Spring elements 44 connected. In the stage shown in Fig. 2, the Contact part 43 of the cam 41, the rear edge of the signature 15 after this from the Material web 1 was cut off. The contact part 43 holds the rear edge of the respective signature 15 in contact with the surface of the conveyor belt 20. Die Cams 41 can be, for example, magnetic coils, pneumatic or hydraulic Cylinders, cams or electric motors activated and by the spring elements 44 be withdrawn into the inside of the knife cylinder 8.

A belt 24 rotating in an endless loop is passed over a deflecting roller 25 guided. The cut signatures 15 are between the belt 24 and the Transport belt 20, which bridges the above-mentioned signature cutting area 3, seized.

Fig. 3a shows a further embodiment of the present invention, in which the Cutting area 3 is formed between two belts 20, 27 moving downstream and the straps 20, 27 by a first and a second support body 23, 26 be supported. This embodiment according to the invention offers the essentials Advantage that an incoming material web 1 between two receiving surfaces can be held down so that no relative movement between the incoming Track 1 and the support bodies 23, 26 is possible. The same applies to the part of the Movement paths downstream of the cutting area 3. The cut ones Signatures 15 are between the surfaces of the two belts 20, 27 added. Within each orbital path the belt 20, 27 is preferred each a support body 23, 26, z. B. a roller or a cylinder with a smooth Surface provided that the respective circumferential during the cutting process Belts 20, 27 are supported within the cutting area 3.

3b shows the cutting area 3 according to the present invention in an enlarged view Scale. The circulating belts 20, 27 are passed through within the cutting area 3 the respective surfaces 23.1 and 26.1 of the respective rotating support bodies 23 and 26 supported. The respective smooth surfaces 23.1, 26.1 serve as elements that one Generate cutting pressure, d. H. it only becomes a force during a lateral cutting process exerted on the respective circulating belts 20, 27. Move both belts 20, 27 each in the direction indicated by an arrow 31. Furthermore, the of the first support body 23 supported and moving in the direction 31 Transport belt 20 have lateral recesses 21, in which as groove strips Acting rubber parts 20.1 are integrated. These rubber parts 20.1 can be separated from one another be spaced, as shown in Fig. 3b. Alternatively, a continuous one Rubber layer may be attached to the conveyor belt 20, which when activating the in the belt construction 27 attached cutting knife 29 serves as a grooved strip. The Belt construction 27 shown in Fig. 3b has one of several layers existing structure in which there is an opening 28 for receiving the Cutting knife 29 is located. The cutting knife 29 is, for example, in a T shape formed, one part of which is received in a groove of the belt construction 27. The knife base 30 received in the groove preferably has resilient elasticity Properties that activate and deactivate the knife tip 30.3. With the Reference numeral 30.2 indicates the inactive position of the knife base 30 in which this is not supported by the surface 26.1 of the second support body 26. In at this stage shown in dashed lines, the knife tip 30.3 does not jump out the opening 28 and thus does not cut a signature 15 from the incoming Material web 1 from. In an activated one designated with reference number 30.1 State of the knife base 30, the knife tip 30.3 cuts a signature 15 from the incoming material web 1. At this stage, the knife base 30 of the Surface 26.1 of the second support body 26 is supported, or out of the opening 28 urged to cut lane 1. With the further downstream movement of the Belt construction 27 then moves the knife base 30 again back to its inactive position 30.2, in which the knife tip 30.3 preferably remains completely within its opening 28.

The conveyor belt 20 and the belt structure 27 are driven such that they circulate synchronously to one another and, during a cutting process, a knife tip 30.3 strikes a rubber part 20.1.

4 shows the respective endless loops along which the transport belt 20 and continuously rotate the belt structure 27. The running material web 1 is gripped by a pair of pull rollers 2 and between the conveyor belt 20 and the Belt construction 27 transported. The two along the endless loop revolving belts 20, 27 are each supported by a plurality of deflecting rollers 32, 33 led. The conveyor belt 20 can, for. B. separately from the Belt construction 27 are driven and for the latter can also be a individual drive can be provided. The two support bodies 23 and 26 can each driven by the drive of the transport belt 20 or the belt construction 27 will or can have their own drive. Preferably extend the Transport belt 20 and the belt structure 27 over the maximum width of the material web to be processed 1. The arrangement according to FIG. 4 of the present Invention is preferably integrated in a folder which, for. B. one Web-fed rotary printing press is assigned.

5a shows a further embodiment of an integration of the knife into the Belt construction of the present invention, in which the knife 29 in a Carrier layer of the belt structure 27 is embedded or mounted. This Embodiment of the invention provides the multi-layered structure of the Belt construction 27 on an enlarged scale. The incoming Material web 1 is between the surface of the conveyor belt 20 and the top one Layer of the belt construction 27 detected. The embodiment of a Belt construction 27 has a carrier layer 27.4 with a plurality of one another teeth or tooth-like projections. Is over the backing 27.4 a layer of compressible material 27.5 arranged with the incoming Material web 1 or comes into contact with the cut-off signature 15. The Carrier layer 27.4 has a T-shaped opening 27.3 in which the cutting knife 29 is included with its knife base 30.

Furthermore, the carrier layer 27.4 is preferably provided with a reinforcing element 27.2 provided, which is substantially in the longitudinal direction of the belt structure 27th extends. This reinforcing element 27.2 can be made of a cord or fibers, e.g. B. Kevlar fibers or another suitable material. In the T-shaped The cutting knife 29 is embedded in the opening 27.3 of the carrier layer 27.4. The in Fig. 5a Knife tip 30.3 shown is not in the position shown there in one Cutting position and is therefore almost completely from the compressible layer 27.5 surround.

5b shows a further embodiment of the integration of a knife 29 into a Carrier layer 27.4 and in a reinforcing element 27.2. The belt construction 27 comprises a compressible upper contacting the incoming material web 1 Layer 27.5 and a further carrier layer 27.4, which are preferably a multiplicity of Has teeth 27.1 to the movement of the belt structure 27 around deflection rollers to facilitate a smaller diameter. In the row of teeth at the bottom a recess is provided in the carrier layer 27.4 (FIG. 5b), in which the Knife base 30 of the cutting knife 29 is received. The cutting knife 29 has a notch or opening through which the above mentioned Reinforcing element 27.2 extends to the cutting knife 29 on the To fasten the belt construction. The cutting area of the blade of the cutting knife 29 extends through both layers, i.e. H. through the carrier layer 27.4 and the compressible layer 27.5. In the stage of the Cutting process, the respective knife tip 30.3 is not in one Cutting position, but in a transport position to part of the incoming To let material web 1 pass.

FIG. 5c shows a cross section of the cutting knife arrangement according to FIG. 5b. The end a cord or fibers formed reinforcing element 27.2 extends through the Notch or opening 27.6 of the cutting knife 29 therethrough. In Fig. 5c comes the Knife tip 30.3 of the cutting knife 29 does not match the surface of the one to be cut Material web 1 in contact and rather remains completely from the respective Layers 27.4, 27.5 of the belt construction 27 surround.

6a shows an embodiment of a cutting knife according to the invention, in which the cutting knife 29 with its base 30 in a laterally extending groove 27.2 Carrier layer 27.4 is added. The compressible is on the carrier layer 27.4 Layer 27.5 arranged, which secures the knife base 30 on the carrier layer 27.4.

The support layer 27.4 is penetrated by the reinforcing element 27.2 and has a toothed shape 27.1, as previously described. In the in Fig. 6a The stage of the cutting process shown is the cutting knife 29 and its Knife tip 30.3 completely embedded in the layers 27.4, 27.5.

In Fig. 6b, the knife assembly, which is in a laterally extending groove Carrier layer of the belt construction according to the invention is attached during a Shown cutting process.

As the incoming material web 1 moves in the direction 31, it becomes between the surfaces of the conveyor belt 20 and the compressible layer 27.5 the belt construction 27 detected. When the conveyor belt 20 contacts the Surface 23.1 of the support body 23, the transport belt 20 against the Belt construction 27 pressed and thus its compressible layer 27.5 pressed together. Consequently, what is arranged in the carrier layer 27.4 penetrates Cutting knife 29 the incoming material web 1 and cuts one of these Signature 15 from. The knife tip 30.3 of the cutting knife 29 contacts the Surface of the conveyor belt 20, either integrated into this rubber parts or has a rubber coating, both of which are not shown in detail in FIG. 6b. During the cutting process, the compressible layer 27.5 deforms, so that the Knife blade of the cutting knife 29 is exposed. Although not shown in Fig. 6b is the belt structure 27 during a cutting process by the flat Supported surface 261 of the second support body 26. Since the conveyor belt 20 and move the belt structure 27 in parallel in the direction 31, keep the clipped signatures 15 their position with respect to the surfaces of the Transport belt 20 and the belt construction 27 at. The cutting knife 29 is here received in a laterally extending groove, but it can also be in a T-shaped Integrated opening or over notches or elongated holes with which the length extending reinforcing element 27.2.

According to a further embodiment of the invention, in a method for Cutting the material web 1, a cutting process in that a Knife base 30 by contact with the smooth peripheral surface 23.1 of a first Support body 23 is activated, the knife base 30 deforms in the manner that the knife tip 30.3 moves out of the belt construction 27 and the incoming material web 1 pierces to a signature 15 of the material web 1st to cut off.

According to a further embodiment of the method according to the invention for Cutting a material web becomes that which supports the incoming material web 1 Transport belt 20 pressed against the belt construction 27. In the event that Belt construction 27 surrounding the cutting part of the cutting knife 29 Compressible layer 27.5, this layer 27.5 is compressed so that the Knife tip 30.3 protrudes from the layer and when in contact with the Transport belt 20 cuts off a signature 15 from an incoming material web 1.

7 shows a further embodiment of the integration of a knife 29 into a All-round belt construction in which a metal belt 34, similar to that in FIG. 4 described belt construction 27, rotates in an endless loop. The Metal belt 34 includes a surface portion 35 on which blocks 36, e.g. B. in a welding process. The knife 29, the blade 30.3 the signatures cuts from a material web 1 is attached between the blocks 36. The Blocks 36 are assigned to the side edges of the metal belt 34, which extends over a Width 39 extends. The knife 29 is by means of screws 37 and nuts 38 on the Blocks 36 attached to easily replace the knife 29 on the Allow metal belt 34. In addition to the replaceable knife 29 according to FIG. 7 one compressible layer 27.5 extends to the next on the metal belt 34 arranged interchangeable knife 29. For illustration purposes the right side of the compressible layer 27.5 at a distance from the replaceable one Knife 29 drawn.

LIST OF REFERENCES

1

Material web

2nd

Pull rollers

3rd

Cutting area

4th

Groove cylinder

6

first grooved ledge

7

second grooved ledge

8th

Knife cylinder

9

Circumference of the knife cylinder 8

10th

Envelopes on the circumference 9 of the knife cylinder 8

12th

first knife arrangement of the knife cylinder 8

13

second knife arrangement of the knife cylinder 8

15

clipped signatures

16

left transport device

17th

Conveyor belts

18th

right transport device

19th

Hold-down straps

20th

Conveyor belts

20.1

Rubber parts of the conveyor belt 20

21

lateral recesses in the transport belt 20

22

Knife bar of knife assemblies 12, 13

23

Support body

23.1

Surface of the support body 23

24th

further transport equipment

25th

Deflection roller

26

Support body

26.1

Surface of the support body 26

27

Belt construction

27.1

Teeth of the base layer 27.4

27.2

Reinforcing element

27.3

T-shaped opening in the carrier layer 27.4

April 27

Carrier layer

May 27

compressible layer

27.6

Notch / opening

27.7

laterally extending groove of the carrier layer 27.4

28

openings

29

Cutting elements / cutting knives

30th

Knife base

30.1

activated state of the knife base 30

30.2

Position of the knife base 30

30.3

Knife tip / knife handle

31

Directional arrow

32

Deflection roller

33

Deflection roller

34

Metal strap

35

Surface part of the metal belt 34

36

blocks

37

Screws

38

Nuts

39

width

40

Axis of rotation

41

cam

42

Cam surface

43

Contact part of the cam 41

44

Spring elements

Claims (25)

Device for cutting a material web, with a first endlessly rotating component (20) and a second endlessly rotating component (27) with a cutting knife (29) integrated therein, the rotating components (20, 27) forming a cutting area (3) between them , in which the material web (1) is guided through the components (20, 27),
featured
by means of first and second support bodies (23, 26) arranged in the cutting area (3), which are arranged with respect to the first and second endlessly rotating components (20, 27) in such a way that the cutting knife (27) integrated in the second rotating component (27) 29) when passing through the support body (23, 26) is actuated by this and cuts the material web (1). Device according to claim 1,
characterized,
that the first rotating component is a conveyor belt (20) which rotates in an endless loop. Device according to one of the preceding claims,
characterized,
that the second rotating component is a belt construction (27) which rotates in an endless loop. Device according to claim 3,
characterized,
that the belt construction (27) has a multi-layer structure in which the cutting knife (29) is integrated. Device according to one of the preceding claims,
characterized,
that the first support body (23) is arranged within the first endlessly rotating component (20). Device according to one of claims 3 to 5,
characterized,
that the second support body (26) is arranged within the belt construction (27) rotating in an endless loop. Device according to one of the preceding claims,
characterized,
that the second circumferential component (27) has an opening (28) for each cutting knife (29). Device according to one of the preceding claims,
characterized,
that the first rotating component (20) has a multi-part structure. Device according to claim 8,
characterized,
that the first circumferential component is a belt (20) which contains a plurality of laterally extending rubber parts (20.1). Device according to one of claims 4 to 9,
characterized,
that the belt construction (27) has a carrier layer (27.4). Apparatus according to claim 10,
characterized,
that the carrier layer (27.4) has a substantially flat surface which contacts the surface (26.1) of the second support body (26). Apparatus according to claim 10,
characterized,
that the carrier layer (27.4) has a tooth-shaped surface (27.1) facing the surface (26.1) of the second support body (26). Apparatus according to claim 10,
characterized,
that the carrier layer (27.4) has a reinforcing element (27.2). Device according to claim 13,
characterized,
that the reinforcing element (27.2) extends essentially in the longitudinal direction of the carrier layer (27.4). Device according to claim 13 or 14,
characterized,
that the reinforcing element (27.2) is a cord. Device according to claim 13 or 14,
characterized,
that the reinforcing element (27.2) consists of or contains fibers. Device according to claim 16,
characterized,
that the fibers consist of Kevlar fibers. Device according to one of claims 10 to 17,
characterized,
that the carrier layer (27.4) has a fastening groove for the cutting knife (29). Device according to claim 18,
characterized,
that the fastening groove is a T-shaped slot which surrounds a knife base (30) of the cutting knife (29). Device according to one of claims 13 to 19,
characterized,
that the cutting knife (29) is fastened to the carrier layer (27.4) by the reinforcing element (27.2). Device according to claim 20,
characterized,
that the reinforcing element (27.2) extends through a notch of the cutting knife (29) embedded in the carrier layer (27.4). Device according to one of the preceding claims,
characterized,
that the cutting knife (29) has a resilient knife base (30). Device according to claim 22,
characterized,
that the resilient knife base (30) is activated when it hits the surface (26.1) of the second piece body (26). A method of cutting a web of material, comprising the following steps: Moving a first component in an endless loop; Moving a second component with a cutting knife integrated therein in an endless loop; Detecting a web of material between the first and second components, the second component having a multi-layer structure; and Compression of a layer of the second component when passing through a support body in such a way that the cutting knife separates a signature from the material web. A method of cutting a web of material, comprising the following steps: Moving a first component in an endless loop; Moving a second component with an integrated cutting knife having a knife base in an endless loop; Detecting a material web between the first and the second component and guiding the first and second components with the material web detected between them through a support region formed between a first and a second support body, in such a way that the knife base when a surface of the second support body comes into contact with a Force is applied by which the cutting knife is activated and the tip of the cutting knife cuts through the material web.

Images