EP1930163A2 - Device for drawing at least one material strip or at least one web strand into a folding unit - Google Patents

Abstract

Device for drawing a material strip (01) and/or a strand with several material strips into a folding device comprises a guiding rail (09) guided along a folding funnel (08) having a shape-variable guiding rail section (58) on the funnel. Independent claims are also included for the following: (1) Method for drawing a material strip and/or a strand with several material strips into a folding device using the above device. Preferred Features: The shape-variable guiding rail section can be varied in length and can be twisted or bent. The shape-variable guiding rail section has a shape-variable support strand which supports a number of guiding elements defining a guide for a holding part.

Description

The invention relates to a device for drawing at least one material web or at least one web strand into a folding apparatus according to the preamble of claim 1.

A folder such. B. off WO 00/56652 A1 Known comprises a superstructure, in which merged from one or more printing units paper webs combined, possibly longitudinally cut and placed over each other, at least one former, on each of which in the superstructure of one or more paper webs merged web track is folded longitudinally, and a Cross-cutting device in which the längsgefalzte web is broken down into individual products. Frequently, the cross-cutting device is realized by a rotating knife cylinder, the blades cooperate for cutting the web track with an abutment on a gripper or folding blade. The grippers of this cylinder retain the products singulated by the cross-cutter on the surface of the cylinder and convey them to a transfer nip between the folding blade cylinder and a jaw cylinder where a folding blade extends out of the folding blade cylinder to move the product held thereon along a transverse centerline into a jaw to introduce the jaw cylinder and so fold across.

To retract a paper web into a press is out EP 05 53 740 B1 known to use a holding part in the form of a rail-guided link chain piece to which the obliquely torn off leading end of the recovering web is attached. The rail runs next to the intended path of the web through the printing press to the superstructure of a folder.

There will be the train, as in the already mentioned WO 00/56652 A1 taken over, by a traction means in the form of two sting occupied belt, the spikes of which impart the web at their lateral edges and pull on an insertion roller at the upper edge of the former and the former itself.

By independent traction means are provided on the former of the guide rail and the holding member guided thereon, it is achieved that the former can each be moved in adaptation to the width of the webs to be processed so that a web folded thereon occurs exactly in the center of the cross-cutting device. This is important for a trouble-free functioning of the cross-cutting device and especially the subsequent transverse folding device.

The DE 42 10 190 A1 discloses a cutting device with integrated switch, which is arranged between draw rollers and folding cylinders.

The DE 101 28 821 A1 shows a device for merging paper webs during retraction.

The US 31 25 335 A discloses a device for drawing webs of material by means of tapes.

The EP 06 73 764 A1 discloses a device for drawing-in of printing substrate webs via turning bars, wherein partial printing substrate webs are pulled in by draw-in tips which are fastened to guide rail-running side-bow chains.

From the WO 2004/056686 A1 a former assembly is known, in which the or the former through at least one actuator to adapt to different web widths is or are transverse to the direction of the web.

From the WO 98/50234 A1 is known a variable length guide rail piece for use as a retractor for a paper web roller chain.

The post-published DE 10 2004 022 541 A1 shows an apparatus for drawing a web along a Längsfalztrichters.

The DE 33 12 038 A1 discloses a device for drawing material webs in rotary printing machines by means of a Einziehbandes. In this case, the returning part of the Einziehbandes compared to the retracting part is guided on another track.

The post-published WO 2005/092614 A2 describes a device for drawing a material web in a folding apparatus with a former, a cross-cutting device and a guide rail. The device has a capping device.

The invention has for its object to provide a device for drawing at least one web or at least one web strand in a folder.

The object is achieved by the features of claim 1.

The achievable with the present invention consist in particular that now even when using different widths of the web, in which the position of the former must be adjusted to ensure proper operation of the folder, the subsequent to the former terminus of the guide rail due to the formvariable guide rail section, which is variable in length and bendable, in particular, does not have to be adjusted by hand to the changed position at every change in position of the former by the operating personnel.

So far, in the case of a fixed mounting of the guide rail without formvariable guide rail section then when the former or this supporting frame should be moved, the guide rail following the formers separated, whereby a further gouging the web was no longer possible. Rather, the funnel frame had to be moved back to its zero position for each retraction process.

In the case of the present invention, the guide rail course adapts automatically on account of the shape-variable guide rail section. The Einziehvorgang a material web is thus possible in any funnel position. The shape variable guide rail section compensates for both an angular offset of the guide rail in the direction of the machine center and a longitudinal displacement of the guide rail in the running direction of the material web, so that can be retracted in any position.

Due to the fact that the variable-shape guide rail section in a preferred embodiment of the invention on the one hand from a variable-shape carrier strand and on the other hand composed of a carrier strand held guide elements, it is on the one hand possible to obtain the shape variability of the guide rail portion exclusively on the basis of the carrier strand and the guide elements other material, in particular to produce a relatively stiff material such as metal. On the other hand, it is possible to manufacture the guide elements of guide rails in a known manner, in particular, to use cut-to-length sections of the parts of the rest otherwise used in the machine, non-variable shape guide rails.

The shape-variable carrier strand may be, for example, a homogeneous strand of suitable, to some extent elastically deformable plastic or of a rubber material, whereby in particular the curving of the guide device can be achieved, to some extent also a length variability.

In a particularly preferred embodiment of the invention, it is provided that the guide strand comprises a plurality of seen in the longitudinal direction of the support strand substantially successively arranged support elements, adjacent support elements are coupled to each other in particular distance variable, which can advantageously be realized by adjacent support elements engage with play with each other ,

Such a design of the invention allows a particularly high dimensional variability of the carrier strand and thus of the variable-shape guide rail portion and in particular a high length variability, which is determined primarily by the sum of the game between the adjacent support elements.

A particularly simple embodiment of the connection between the adjacent carrier elements results when the carrier elements engage with corresponding play in openings of the respective adjacent carrier element with play or, in an alternative embodiment, coupled with each other via oppositely directed, in particular hook-shaped coupling approaches are.

The assembly of the carrier strand from the individual carrier elements becomes particularly simple if the carrier elements formed, for example, as described above, can be brought into engagement with each other substantially perpendicularly to the longitudinal direction of the guide rail section. For easy assembly of the guide elements on the support strand or on the support elements, these are preferably designed to be pushed onto the support strand or the support elements and in a preferred development of the invention, it is provided that the guide elements support the support elements at least in the region of their coupling embrace, so that in this way the coupling or connection between two adjacent support members is secured by the associated guide element.

In order to adapt the folder to the processing of web strands of different widths and to be able to guide them centered by the crosscutting and Querfalzeinrichtung, as already mentioned above, the former is preferably displaceable parallel to the longitudinal axis of the cross cutting device. In order for the guide rail to be able to follow an adjustment movement of the former, a section of the guide rail lying in the running direction of the web strand in front of the former should be stretchable. In a preferred embodiment of the invention is therefore provided that not only in connection to the former, but also in front of the former, the guide rail has a formvariable guide rail section, in particular a variable length guide rail section. As a result, a displacement of the frame supporting the former is made possible without making an adjustment of the guide rail construction running to the former.

In order to ensure a proper orientation of the holding part in relation to the material web held by it when passing over the former, the guide rail is preferably twisted at the level of the former, preferably by about 90 °.

In another aspect, the guide rail may extend to a position located on the web of material between first and second trimming devices, wherein the first trimming device may be phase-correlated and the second trimming device may be emergency-operated; beyond this position, such tools for automatic retraction of the strand are no longer required after z. B. the white waste by means of the phase-correlated Kappvorrichtung the useful part of the web strand in the arranged below the phase-correlated Kappvorrichtung emergency stop Kappvorrichtung or the arranged below cutting device enters without requiring a guide through the guide rail.

An arranged in extension of the guide rail between the first and second Kappvorrichtung beyond the Forming hopper for holding holding parts allows it to retract several webs in a pull-in shortly successively without the holding part of a web would have to be moved back to its starting point to the guide rail for the To free hold part of another material web.

The memory may in particular be formed by a further guide rail section which extends, over a curved section, away from the material web in the lateral direction and is capable of accommodating a plurality, preferably a plurality of holding parts next to one another.

Optionally, the storage device may be preceded by a separating device for separating the holding parts from their respective material webs, so that the leading sections of the material webs entrained by the holding parts do not have to be accommodated in the store if there is insufficient space for this purpose.

The guide rail may preferably extend continuously from a reel changer of a printing unit upstream of the folder into the folding apparatus or up to the emergency stop-operated trimming device.

According to a further aspect, at least one return-guiding rail, which is different from the at least one guide rail, can be provided for returning retaining parts to the starting position. This has the significant advantage that it is possible at any time, regardless of the rest of the operation of the system, the holding parts on the at least one returning Guideway to their origin.

In addition, it may be expedient to switch between the guide rail and the returning guide rail memory for temporary recording or intermediate storage of holding parts.

Alternatively, it can be provided that is waived on its own returning guide rail and stored in memory holding parts are returned via the at least one guide rail over which they were also fed; However, in this structurally simpler embodiment, a return can only take place if the guide rails are free for this purpose.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Fig. 1

eine teilschematische Seitenansicht eines Teils einer Druckmaschine mit einer eine Führungsschiene umfassenden Vorrichtung zum Einziehen;

Fig. 2

eine teilschematische Vorderansicht der Druckmaschine gemäß Fig. 1;

Fig. 3

eine schematisierte Teilansicht gemäß Fig. 2, wobei jedoch die Führungsschiene nicht dargestellt ist;

Fig. 4

eine Detailansicht einer Führungsschiene und eines in der Führungsschiene geführten Halteteils für eine einzuziehende Materialbahn;

Fig. 5

eine perspektivische Darstellung eines kurzen Abschnitts eines ersten Ausführungsbeispiel eines formvariablen Führungsschienenabschnitts;

Fig. 6

eine Ansicht des Abschnitts gemäß Fig. 5 von oben;

Fig. 7

eine Ansicht des Abschnitts gemäß Fig. 5 von der Seite;

Fig. 8

eine Seitenansicht des Abschnitts gemäß Fig. 7;

Fig. 9

eine perspektivische Darstellung eines kurzen Abschnitts eines zweiten Ausführungsbeispiels eines formvariablen Führungsschienenabschnitts;

Fig. 10

eine perspektivische Ansicht eines Trägerelements und eines Führungselements des Führungsschienenabschnitts gemäß Fig. 9;

Fig. 11

eine Ansicht des Abschnitts gemäß Fig. 9 von oben;

Fig. 12

eine Ansicht des Abschnitts gemäß Fig. 9 von der Seite;

Fig. 13

eine Seitenansicht des Abschnitts gemäß Fig. 12;

Fig. 14

eine weitere Ausbildung des zweiten Ausführungsbeispiels in einer Ansicht von oben;

Fig. 15

die weitere Ausbildung gemäß Fig. 14 in Seitenansicht;

Fig. 16

eine Ansicht eines weiteren Ausführungsbeispiels eines formvariablen Führungsschienenabschnitts;

Fig. 17

eine vorteilhafte Ausführung einer Kette.

Show it:

Fig. 1

a partial schematic side view of a portion of a printing machine with a guide rail comprehensive device for feeding;

Fig. 2

a partially schematic front view of the printing machine according to Fig. 1 ;

Fig. 3

a schematic partial view according to Fig. 2 however, the guide rail is not shown;

Fig. 4

a detailed view of a guide rail and guided in the guide rail holding part for a material web to be collected;

Fig. 5

a perspective view of a short portion of a first Embodiment of a variable-shape guide rail section;

Fig. 6

a view of the section according to Fig. 5 from above;

Fig. 7

a view of the section according to Fig. 5 of the page;

Fig. 8

a side view of the section according to Fig. 7 ;

Fig. 9

a perspective view of a short portion of a second embodiment of a variable-shape guide rail portion;

Fig. 10

a perspective view of a support member and a guide member of the guide rail section according to Fig. 9 ;

Fig. 11

a view of the section according to Fig. 9 from above;

Fig. 12

a view of the section according to Fig. 9 of the page;

Fig. 13

a side view of the section according to Fig. 12 ;

Fig. 14

a further embodiment of the second embodiment in a view from above;

Fig. 15

the further education according to Fig. 14 in side view;

Fig. 16

a view of another embodiment of a variable-shape guide rail portion;

Fig. 17

an advantageous embodiment of a chain.

It is going on first Fig. 1 and 2 Referenced. Coming from a printing unit, not shown, in the representation of Fig. 1 from the bottom right coming web 01, z. B. Paper web 01 reaches a superstructure 03 of a folder. The superstructure 03 comprises a longitudinal cutter 04 for disassembling the incoming paper web 01 into a plurality of juxtaposed partial webs, a turning table 06, in which the sub-webs of the paper web 01 and possibly further, unillustrated paper webs rearranged, transversely to the direction (from right to left in Fig. 1 ) and / or turned and then superimposed. From the turning table 06, the path of the paper web 01 extends over an arrangement of compensating rollers 07 for web length compensation and traction control to a former 08.

Forming hopper 08 and compensating rollers 07 are in a common frame 02 in the lateral direction of the Fig. 1 moveable, as in Fig. 1 indicated by the double arrow A, and further, the former 08 on the frame 02 transverse to the longitudinal direction of the incoming paper web 01 be adjustable, as shown in Fig.2 indicated by the double arrow B.

From the exit of the former 11, the paper web 01 travels downwardly substantially downwards through a first capping device 11 and a second capping device 12 and then through a cross-cutting device 24 and a cross-folding device of per se known construction, not to be explained more precisely here. To guide the paper web 01 between the former 08 and cross-cutting device 24 are train groups 26; 27; 28 provided.

Along the path of the paper web 01 along a guide rail 09, which extends in the illustration Fig. 1 for the most part coincides with the paper web 01, but in fact substantially next to the paper web 01 at a predetermined distance is arranged. The guide rail 09 is used in the manner described in more detail below for drawing a paper web 01 through the machine into the folder. The drawing-in process is preferably carried out by the printing units associated with the web path (not shown) while they are not printing.

The guide rail 09 extends, as in particular also from Fig. 2 recognizable along the former 08 and into the area between the first Kappvorrichtung 11 and the second Kappvorrichtung 12, from where it is led out via a curved guide rail portion 13 laterally out of contact with a cross member 14 and there to form one or more loops Memory 16 for the below to be explained, guided in the guide rail 09 holding parts defined at which the leading end of a paper web 01 is fixed during retraction. The guide rail 09 preferably extends without interruption of a non-illustrated reel changer of the folder upstream, in the Fig. 1 not shown printing unit to the above-explained position.

At the entrance of the memory 16 adjacent to the curved guide rail portion 13, a separating device, not shown, may be arranged, which releases the head portion of each passing paper web 01 of its holding part. The trackless track beyond the separator falls down freely next to the folder and is thus ejected.

At the latest, after all holding parts have been released from their respective paper webs 01, work is begun to return them to their respective starting locations. In order to ensure that exactly one holding part is returned to each starting point, corresponding points, not shown, are provided, the position of which is automatically controlled in order to return each holding part to a starting point intended for it.

To return the holding parts to their starting position on the respective roll changer, it is possible to return them in the same way as they have taken when drawing in the respective paper web 01 in the reverse direction.

According to an alternative solution, an additional return guide rail is provided, via which the holding parts are returned to their original position.
Such, not shown in the figures, the returning guide rail may, for example, connect to the end of the memory 16, so that the holding parts are quasi circulated. If such an additional, returning guide rail is provided, it would also be possible to dispense with a memory 16 after it allows retaining parts to be returned at any time irrespective of the respective operating state of the machine.

The end of the guide rail 09 is, as already mentioned above, arranged between the first capping device 11, which may in particular be a phase-correlated capping device 11, and the second capping device 12, which may be an emergency stop-operated capping device 12, as hereinafter particularly with reference on Fig. 3 is explained in more detail.

The material web 01, in particular paper web 01, carries a recurring after a certain repetition length L _B processing pattern, eg. B. a printed image. In the further processing stage comprising the folding apparatus F, the material webs 02 or a web 05 comprising the repetitive processing pattern are cut from one or more such material webs 02 into product sections 17. The folding apparatus F can, as shown, in particular a transport cylinder 38, for example, designed as a cylinder 28 gripper cylinder 38 with grippers 39 and knives 41 and a cooperating with this and a folding gap 42 defining jaw cylinder 43 include. The transport cylinder 38 acts with a cylinder 44, z. B. knife cylinder 44 together, the knife 45 carries, causing the Cross-cutting device 24 is formed.

In the cross-cutting device 24 of the folding apparatus F, the strand 05 is cut into product sections 17 to match the recurring repeat length L _B. For the repeat length L _B suitable cut is the cross-cutting device 24 and a processing pattern applying, not shown aggregate, for. B. printing unit, synchronized in their power stroke and a distance of the web (s) from the unit to the section optionally additionally by a longitudinal register means, not shown, adjustable to an integer multiple of the repeat length L _B. The synchronization can be done electronically by a common drive motor motor via mechanical coupling or preferably mechanically mechanically independent of each other by drive motors driven unit and cross-cutting device 24 via a so-called. Virtual master axis when driving unit and cross cutting device 24. The virtual master axis is shown here as part of a schematic in Fig. 3 identified machine control 18 understood. On the basis of specifications relating to the production speed, it can generate angular setpoint values Φ purely synthetically and to all drives of assemblies to be synchronized and, for example, to a drive M driving the cross-cutting device 24. The angular position command values Φ of the leading axis and thus the other drives can be synchronized via the leading axis Position of the folder F and the cross cutter 24 follow.

In the path of the strand 05 between the processing pattern applying unit and the cross-cutting device 24, the capping device 12 for spontaneously capping the strand 05, for example due to an emergency stop, arranged. This capping device 12 is designed to penetrate the strand 05 with a short reaction time to a corresponding command and at the same time auszuleiten in an advantageous development of the strand path to the folder F out. For this purpose, basically any Kappvorrichtung 12 may be provided, in which a knife 31 in the Strangweg into or out of Strangweg is movable out.

In the embodiment ( Fig. 3 ), the cutting device 12, a knife 31 which is pivotally mounted on an axis 36, and is movable by pivoting in the strand path in or out of the strand path out. A pivoting of the axis 36 and thus of the blade 31 via an eccentric to the axis by a pressure medium operated adjusting means 32 hinged lever 37. The adjusting means 32 is in this case via a control device 35 and an actuator 35, for example, designed as a valve for the pressure medium, due to a Signal N (example for emergency stop) operated. This signal N may come from the machine controller 18 or, for a short duration, directly from error detecting sensors. In an advantageous embodiment, the Kappvorrichtung 12 a guide 33, z. B. a Ausleitzunge 33, which acts in the active state of the blade 31 with this together, obstructs the operational strand path and the strand 05 out of the way to the folder F exits. Furthermore, the capping device 12 may have a bracket 34, which can be pivoted together with the blade 31, which supports the guiding of the strand beginning in the direction of the folding apparatus 12 when the blade 31 is deactivated.

If there is a fault during operation of the machine, with a further shrinkage of the strand 05 (or the webs 01) is to be prevented in the folder F, z. B. the machine stopped and the strand 05 is capped by the capping device 12. In Fig. 3 this is indicated by the force acting on the actuator 35 signal N. This caps ("emergency caps") takes place spontaneously and without regard to a designated for the operational section section or cutting line S. During braking of the system now the strand 05 is discharged laterally. As in Fig. 3 shown in an operating state shortly after the first caps, so-called emergency caps, the cut usually does not coincide with the planned intersection between two Wiederhollängen L _B , but there remains a remainder R (with a length less than L _B ) on the strand 05 to the Start of next repeat length L _B.

If the strand R having the remainder R 05 were then fed to the folding apparatus F, then in the transverse cutting device 24 - as a result of the synchronization with the repeat length L _B - the remainder R is cut off as a first operational cut which, however, due to its shortened length, does not come from the gripper 39 is receivable. If the risk of a renewed disturbance caused thereby is to be avoided, then the remainder R would have to be removed from the folder F in a complex manner.

In order to avoid this, in addition to the capping device 12, the capping device 11 which can be controlled in accordance with the register is arranged. In this case, register-compliant caps are to be understood as meaning a capping of the strand 05 (or of material webs 01) at an operative cutting line S provided for the cut between two consecutive repeat lengths L _B. Thus, when the generated in this way, coincident with the operational cutting line S edge of the new Strangganfanges in the cross cutter 24 this edge coincides with the moving forwardly of the strand 05 synchronously moving blade 45 in the effective cutting gap 46.

In the embodiment of Fig. 3 the capping device 11 has a capping element 47 or knife 47, which extends perpendicular to the longitudinal extent of the strand 05 and parallel to the plane of the strand 05 and is guided movably perpendicular to the plane of the strand 05 on a linear travel. A displacement of the cap member 47 and thus the knife 47 is z. B. via a pressure medium-operated adjusting means 48, z. Example, a hydraulic or pneumatic cylinder 48 with piston and plunger whose movement via a motion transmission mechanism 49, which may be a pivot lever mechanism 49 in particular, in the linear movement of the cap member 47 can be transferred. In the case of the described embodiment, the adjusting movement of the adjusting means 48, ie of the piston or plunger, perpendicular to the adjusting movement of the cap member 47, whereby the Motion transmission mechanism 49 or pivot lever mechanism 49 is required, on the other hand, however, a space-saving arrangement is created.

In an advantageous development, the cap member 47 or knife 47 acts with this opposite another cap element 50 and an abutment 50, z. B. designed as a counter knife 50 or cutting bar 50, together, wherein the two cap elements 47; 50 form a cutting groove when interacting. This counter-knife 50 is preferably arranged fixed on the other side of the strand 05, but could also be movable, in particular linearly movable or else movable instead of the first cap member 47 or knife 47.

Actuation of the capping device 11 is phase-correlated to the cross-cutting device 24. The register-correct triggering of the capping device 11 for later operational cut, ie the triggering at the right moment to the advancing strand 05, takes place on the basis of a signal to the operational cross-cutting device 24 (z ., the folding apparatus F) status information I, in particular phase information I (in short: signal I). In a transverse cutting device 24 based on rotating blades 45, this phase information I represents an angle information I of the knife cylinder 44 driven synchronously with the strand 05 Fig. 3 illustrated, the phase information I can advantageously directly on the knife cylinder 44 by a corresponding detection system 40, z. B. one with a knife with the cylinder 44 rotatably connected initiator cooperating sensor can be obtained. This initiator then stands, for example, in a fixed, exactly selected angular reference for register-compatible caps with the capping device 11, so that due to a pulse during the passage of the initiator on the sensor, the capping is carried out by the capping device 11.

In dashed line illustrated embodiment, the phase information I also from the Leading axis of the machine control 18 are derived, since their phase position with the phase angle of the folder F, in particular the cross cutter 24, correlates in a defined manner.

The signal of the phase information I, as angle information 1 or as a singular pulse during the passage of an initiator, is processed in a control device 56 and triggers the register-compliant caps by the capping device 11. In the case of a singular pulse which is already phase-correlated, the control device 56 can be designed as a simple actuator 56, for example as a valve for pressurizing medium. If the phase information 1 merely represents information about instantaneous angular positions, then the control device 56 has means for determining (eg, input means) a defined desired position and for evaluating the phase information I obtained in this regard.

In the following, the guide rail 09 or the differently configured guide rail sections used in this connection will be explained in more detail.

The guide rail 09 used substantially over the entire guide path has, as in FIG Fig. 4 shown, a total of a U-shaped or C-shaped cross-section, in whose groove 23, in particular longitudinal groove 23 each have a chain piece 51 is guided. The chain piece 51 is constructed of alternating one- or two-segmented members 52; 53, of which at least one carries out of the groove 23 extending arm 19. In Fig. 4 two adjacent links 53 common carry an arm 19. Chain piece 51 and arm 19 are hereinafter also referred to as holding part 51, 19. A hook at the end of the arm 19 is provided to fasten, with the aid of a loop wrapped around it, the leading end 54 of a paper web 01 to be newly collected or a draw-in tip connected to the leading end 54.

The single-segment members 52 are elastic in itself, z. B. by one piece from a elastic material are made, or by a (in the Fig. 4 not shown) elastic center piece of spring steel or the like, and thus allow a twisting of the chain piece 51 about an axis parallel to the longitudinal direction of the guide rail 09 axis and a bend of the chain piece 51 about an axis perpendicular to the plane of the paper web 01 axis.

On the guide rail 09 motors (not shown) are mounted at regular intervals, each carrying a sprocket, which by a gap in the side of the guide rail 09 in the groove 23 and possibly between the members 52; 53 engages a located at the location of the sprocket chain piece 51. The length of the chain piece 51 is chosen slightly larger than the distance between two successive sprockets along the guide rail 09, so that it is ensured that when the chain piece 51 is conveyed along the guide rail 09, always at least one sprocket with the chain piece 51 is engaged and this drives. Thus, it is sufficient to retract a paper web 01, the leading end 54 to be secured respectively to the protruding from the groove 23 arm 19 of a chain piece 51 and then move the chain piece 51 along the guide rail 09 in motion to feed the paper web 01.

The guide rail 09 described above is twisted in the region of the former 08. At a funnel inlet roller 10 (see. Fig. 1 The paper web 01 or the web 05 composed of several paper webs 01 is deflected and reaches the sloping downwardly tapered surface of the former. As the web 05 is pulled over the side edges of the former 08, its orientation changes; from one to the level of Fig. 1 In a substantially vertical orientation upstream of the hopper inlet roll 10 is a to the plane of the Fig. 2 essentially vertical orientation. In order to be able to guide the paper web 01 over this orientation change, the guide rail 09 in a section following the funnel inlet roller 10 is as off Fig. 2 recognizable by 90 ° twisted.

After passing through the hopper inlet roller 10, the groove 23 of the guide rail 09 (see. Fig. 4 ) First, the hopper inlet roller 10, and the arm 19 of a holding part 51, 19 protrudes from the groove 23 to the funnel inlet roller 10 ago. When the twisted portion is passed, the orientation of the chain piece 51 is rotated by 90 °. The twisting ensures that the paper webs 01 are still guided exactly even after they have passed through the former.

After, as already stated above, to be processed with the folder F paper webs 01 different width, it is important for trouble-free operation that these webs 01 through the cross-cutting device 24 and the subsequent Querfalzeinrichtung exactly centered. For this is already in connection with above Fig. 1 and 2 mentioned displaceability of the former 08 in one of the axes of the cylinder 38; 44 or the cutting direction of the cross cutter 24 parallel direction required. To make this possible, the guide rail 09 is on the one hand in a region 57 (see Fig. 1 ) telescopically extendable or otherwise suitably variable in length between the reversing corner 06 and the compensating rollers 07 and following the former 08, in the area 58 indicated by the dot-and-dash circle 58, which is variable in shape, ie in particular length-variable and flexible, in any position, which can take the former 08, a smooth passage of the holding parts 51, 19 through the machine to the memory 16 to allow. These shape-variable regions 57; 58 are each of form variable guide rail sections 57; 58 formed, which are turned on in the guide rail 09 and will be described in more detail below.

First, the embodiment according to Fig. 5 to 8 Referenced. It should be noted that in the 6 and 7 shown middle guide element 101 in Fig. 5 only for the purpose of clarification of the illustration is not shown.

The shape-variable guide rail section 58 comprises a plurality of Guide elements 101, which are supported in the longitudinal direction one behind the other on a support strand 102, in particular fastened and together form a U-shaped or C-shaped rail for the intake device, not shown here, in particular roller chain.

The guide elements 101 have a known cross section, as he in particular Fig. 8 becomes clear and, moreover, preferably corresponds to the cross section of the guide rails 09 used in the machine, which are not dimensionally variable, fixed to the frame. The guide elements 101 embodied as profiled strips 101 or profiled strip pieces 101 have a rectangular outer cross section and can be made of metal, in particular of aluminum, but also of a fiber-reinforced plastic or of a composite material.

Each guide element 101 has a guide section 103 for guiding the retraction device, not shown, and a fastening section 104 for fastening the guide element 101 to the carrier strand 102. The attachment portion 104 is formed in the case of the embodiment of a hollow profile section 104. The inner cross section of the hollow profile section 104 is substantially rectangular. In the assembled functional state, the fastening section 104 or hollow profile section 104 surrounds the carrier strand 102 completely or the carrier strand 102 is guided or received in the hollow profile sections 104 of the carrier elements 101.

The adjoining the attachment portion 104 guide portion 103 has a one-sided substantially open, U- or C-shaped cross-section. The opening of the guide section 103 extends in the direction away from the fastening section 104. The guide section 103 comprises two legs 106 which extend at right angles away from the hollow profile section 104, on the opposite inner side of which a respective groove 107 is formed, the opposing grooves 107 forming a raceway for define the roles of a roller chain.

The carrier strand 102 is formed variable in shape, d. H. in particular variable in length and / or twistable and / or bendable. Suitable form variability may be imparted to the carrier strand 102, for example, by choice of a suitable material, in particular an elastically deformable material, primarily a suitable plastic material or rubber material. This makes it possible in particular to achieve sufficient twistability and bendability in practice.

In order to be able to demonstrate sufficient length variability, the carrier strand 102 is formed from a plurality or plurality of in the longitudinal direction L of the guide rail portion 58 successively arranged support members 108 which cooperate like a limb, wherein adjacent support members 108 are coupled to each other in the longitudinal direction L distance variable, in particular mesh with game. The individual carrier elements 108 can thus be pushed together or pulled apart relative to each other, so that in this way the length of the carrier strand 102 can be changed.

Each carrier element 108 is associated with a guide element 101, d. H. in each case a guide element 101 is attached to a carrier element 108 in each case. The length of the guide elements 101 is preferably selected in dependence on the length of the support elements 108 so that the guide elements 101 lie against one another with their end faces taking advantage of the existing clearance when the support strand 102 is pushed completely together. The sum of the lengths of the guide elements 101 thus corresponds to the minimum length of the carrier strand 102 assigned to these guide elements 101, and the maximum length is obtained by adding the sum of the play of the associated carrier elements 108.

The individual carrier elements 108 are approximately plate-shaped and basically have a cross-section which corresponds to the inner cross-section of the hollow profile sections 104 of the guide elements 101 corresponds to such that a displacement of the support elements 108 within the hollow profile sections 104 is possible. In the case of the present embodiment, the cross section of the carrier elements 108 in adaptation to the inner cross section of the hollow profile sections 104 is substantially rectangular.

Successive carrier elements 108 are coupled to one another with variable spacing, in particular consecutive or adjacent carrier elements 108 intermesh with one another with play. For this purpose, each plate-shaped support member 108 at its one end a centrally, d. H. arranged symmetrically to the longitudinal direction L C-shaped opening 109 with a rectangular inner cross-section and at its other end also a center, d. H. symmetrical to the longitudinal direction L arranged T-shaped projection 111. The T-shaped projection 111 of each support member 108 engages with the C-shaped opening 109 of the respective adjacent support member 108 with play in such a way that adjacent support members 108 in the longitudinal direction L relative to each other are displaceable.

The width of the opening 109 measured transversely to the longitudinal direction L corresponds to the width of the transverse leg 112 of the T-shaped projection 111, the length of the opening 109 measured in the longitudinal direction L is greater than the thickness of the transverse leg 112, whereby said play between the support elements 108 created becomes. Each opening 109 is bounded towards the end of the respective carrier element 108 by two limbs 113, 114 facing one another, between which the longitudinal limb 116 of the T-shaped lug 111 is guided and whose mutual spacing corresponds to the thickness of the longitudinal limb 116.

The carrier elements 108 are shown in the illustration Fig. 6 in a direction perpendicular to the plane zusammenfügbar. Guiding elements 101 are then pushed over the hollow profile section 104 onto the assembled carrier elements 108 and onto a respective carrier element 108 in the manner described below attached. As is clear from the figures, the guide elements 101 surround the support elements 108 at least partially in the region of their coupling or connection, ie in the region of the opening 109 and the transverse leg 112 of the projection 111, whereby this connection is secured against loosening.

As a means 117 for fixing a guide member 101 to a support member 108 in the case of the embodiment, a locking element 117, in particular a bolt 117 is provided which is guided through bores 118 and 119 in the support member 108 and in the mounting portion 104 of the guide member 101 and in this Position positively and / or non-positively fixable. In particular, the bolt 117 as a threaded bolt 117 and a bore 119 in the mounting portion 104 or a bore 118 in the support member 108 as a threaded bore 118; 119 be formed.

The embodiment according to Fig. 8 to 15 differs from the embodiment described above only by the below described different configuration or shaping of the connection between the support members 108. Incidentally, reference is made to the above description.

In the second embodiment, the plate-like support members 108 at their ends on opposite sides of L-shaped or angular recesses 121; 122, which are formed so that at both ends of a support member 108 on respective opposite sides hook-shaped coupling lugs 123; 124 are formed, which are opposite or aligned with each other, wherein the coupling lug 123 of a support member 108 cooperates with the coupling lug 124 of the adjacent support member 108 with play.

Said game between the support members 108 is provided by the fact that the thickness of the transverse to the longitudinal direction L, at the end of the respective Coupling approach 123 and 124 formed hook portion 126 and 127 is less than the measured length L in the length of the respective hook portion 126; 127 cooperating leg 128; 129 of the recess 121 and 122, respectively.

Furthermore, the hook-shaped coupling lugs 123; 124 formed so that the free ends of the hook portions 126; 127 on the respective longitudinal web 131; 132 of the respective coupling approach 123 and 124 support, which contributes to the stability of the carrier strand 102.

Incidentally, the hook portion 127 and the associated leg 128 of the recess 121 is wider than the hook portion 126 and the associated leg 129 of the recess 122, which is achieved even in the case of maximum extension of the support strand 102, in which the individual guide elements 101 maximum are spaced and the gap between adjacent guide elements 101 thus reaches its maximum size, cf. z. B. Fig. 7 , both cooperating coupling parts 123; 124 in both associated guide elements 101 and their hollow profile sections 104; 104 are guided, which also contributes to the stability of the carrier strand.

According to FIGS. 14 and 15 the carrier strand 102 is connected at its two ends to a guide element 133 or 134, whose cross-section corresponds to that of the guide elements 101, but which is longer than the guide elements 101. The guide elements 133; 134 are connected to the guide rails 09. In the specific case, the length variability can be, for example, 3 mm per coupling, ie in the case of the example shown, a total of 15 mm.

The further shape-variable guide rail section 57 is in Fig. 16 shown in more detail. This guide rail portion 57 is formed variable in length or telescopically extendable and designed substantially as in the above-mentioned WO 98/50234 A1 is disclosed; For details, therefore, reference is made to this document expressly referred to.

The guide rail section 57 also has a C-shaped or U-shaped inner cross section and comprises sections 61; 62, which engage relative to each other slidably into one another and always maintain a positive guidance of the roller chain.

It is understood that in the area 57 instead of a length-variable guide rail portion 57, a shape-variable guide rail portion 58 could be used. Also, if necessary form variable guide rail sections 57; 58 are also used elsewhere.

An advantageous embodiment of the in the guide rail 09 and the guide rail portions 57; 58 led chain 51 is in Fig. 17 shown. The chain 51 has respective rollers mounted on bolts 22, wherein the bolts 22 are connected by means of tabs. Thus, the chain 51 can not only perform a pivoting movement about the longitudinal axes of the bolt 22, z. B. the holes in the tabs slightly larger than the diameter of the pin 22, so that the chain 51 is transversely to the running direction or in the longitudinal axis direction of the bolt 22 curvable. In the curved state, this results in a maximum radius of curvature R51 of 1,000 mm or, preferably, less than 600 mm, particularly preferably less than 500 mm.

It is also possible, the bolt 22 in its longitudinal direction with different diameters, in particular crowned execute.

It should be noted that in order to process a plurality of webs bundled, the superstructure of the folding apparatus preferably has a plurality of paths, on each of which at least one material web 01 through the superstructure 03 and to the Cross-cutting device 24 is feasible, and that then unite in a manner not shown several rail pieces that run along each of these paths, before the cross-cutting device 24 with the guide rail 09 unite.

01

Materialbahn, Papierbahn

02

Gestell

03

Oberbau

04

Längsschneider

05

Strang

06

Wendedeck

07

Ausgleichswalze

08

Falztrichter

09

Führungsschiene

10

Trichtereinlaufwalze

11

Kappvorrichtung, erste

12

Kappvorrichtung, zweite

13

Führungsschienenabschnitt, gekrümmt

14

Traverse

15

-

16

Speicher, Führungsschienenabschnitt

17

Produktabschnitt

18

Maschinensteuerung

19

Arm

20

-

21

Abschnitt, verdrillt

22

Bolzen

23

Nut, Längsnut

24

Querschneideinrichtung

25

-

26

Zuggruppe

27

Zuggruppe

28

Zuggruppe

29

-

30

-

31

Messer

32

Stellmittel

33

Führung, Ausleitzunge

34

Bügel

35

Steuereinrichtung, Stellglied

36

Achse

37

Hebel

38

Zylinder, Greiferzylinder, Transportzylinder

39

Greifer

40

Detektionssystem

41

Messer

42

Falzspalt

43

Falzklappenzylinder

44

Zylinder, Messerzylinder

45

Messer

46

Schneidspalt

47

Kappelement, Messer

48

Stellmittel, Hydraulikzylinder, Pneumatikzylinder

49

Bewegungsübertragungsmechanismus, Schwenkhebelmechanismus

50

Kappelement, Widerlager, Gegenmesser, Schneidleiste

51

Kettenstück

52

Glied, einsegmentig

53

Glied, zweisegmentig

54

Ende, führendes

55

-

56

Steuereinrichtung, Stellglied

57

Bereich, Führungsschienenabschnitt, formvariabel

58

Kreis, Bereich, Führungsschienenabschnitt, formvariabel

59

-

60

-

61

Teilstück

62

Teilstück

63 bis 99 -

100 -

101

Führungselemente, Profilleiste, Profilleistenstück

102

Trägerstrang

103

Führungsabschnitt

104

Befestigungsabschnitt, Hohlprofilabschnitt

105

-

106

Schenkel

107

Nut

108

Trägerelement

109

Öffnung (108)

110

-

111

Ansatz (108)

112

Querschenkel (111)

113

Schenkel (109)

114

Schenkel (109)

115

-

116

Längsschenkel (111)

117

Mittel zum Fixieren, Verriegelungselement, Bolzen, Schraubbolzen

118

Bohrung, Gewindebohrung

119

Bohrung, Gewindebohrung

120

-

121

Ausnehmung (108)

122

Ausnehmung (108)

123

Kopplungsansatz (108)

124

Kopplungsansatz (108)

125

-

126

Hakenteil (123)

127

Hakenteil (124)

R51

Krümmungsradius

A

Doppelpfeil

B

Doppelpfeil

F

Falzapparat

I

Phaseninformation, Winkelinformation, Statusinformation, Signal

L

Längsrichtung

M

Antrieb

N

Signal, Notstopp

R

Rest

S

Schnittlinie

L_B

Wiederhollänge

Φ

Winkellagesollwerte

LIST OF REFERENCE NUMBERS

01

Material web, paper web

02

frame

03

superstructure

04

slitter

05

strand

06

turning deck

07

compensation roll

08

formers

09

guide rail

10

Former inlet roller

11

Capping device, first

12

Capping device, second

13

Guide rail section, curved

14

traverse

15

-

16

Storage, guide rail section

17

product section

18

machine control

19

poor

20

-

21

Section, twisted

22

bolt

23

Groove, longitudinal groove

24

Cross-cutting device

25

-

26

traction group

27

traction group

28

traction group

29

-

30

-

31

knife

32

actuating means

33

Guidance, diversion

34

hanger

35

Control device, actuator

36

axis

37

lever

38

Cylinder, gripper cylinder, transport cylinder

39

grab

40

detection system

41

knife

42

folding gap

43

jaw cylinder

44

Cylinder, knife cylinder

45

knife

46

cutting gap

47

Capping element, knife

48

Adjusting means, hydraulic cylinders, pneumatic cylinders

49

Motion transmission mechanism, pivot lever mechanism

50

Capping element, abutment, counter knife, cutting bar

51

piece of chain

52

Limb, single-segmented

53

Limb, two-segmented

54

End, leading

55

-

56

Control device, actuator

57

Area, guide rail section, shape variable

58

Circle, area, guide rail section, shape variable

59

-

60

-

61

section

62

section

63 to 99 -

100 -

101

Guide elements, profile strip, profile strip piece

102

carrier strand

103

guide section

104

Attachment section, hollow profile section

105

-

106

leg

107

groove

108

support element

109

Opening (108)

110

-

111

Approach (108)

112

Transverse leg (111)

113

Thighs (109)

114

Thighs (109)

115

-

116

Longitudinal leg (111)

117

Means for fixing, locking element, bolts, bolts

118

Bore, threaded hole

119

Bore, threaded hole

120

-

121

Recess (108)

122

Recess (108)

123

Coupling approach (108)

124

Coupling approach (108)

125

-

126

Hook part (123)

127

Hook part (124)

R51

radius of curvature

A

double arrow

B

double arrow

F

folding

I

Phase information, angle information, status information, signal

L

longitudinal direction

M

drive

N

Signal, emergency stop

R

rest

S

intersection

L _B

repeat length

Φ

Angular position setpoints

Claims (19)

Apparatus for drawing at least one material web (01) and / or at least one strand having a plurality of material webs into a folding apparatus with a superstructure (03), at least one former (08), a cross cutting device (24) for separating in the superstructure (03) and on the former (08) folded material webs (01) in individual products, and at least one guide rail (09) to which a holding part (51, 19), to which a leading end (54) at least one material web (01) can be fastened, attached a path of this material web (01) through the superstructure (03) is displaceably guided, characterized in that at least one of the at least one guide rail (09) different return guide rail for returning retaining parts (51, 19) is provided in a starting position that between the guide rail (09) and the returning guide rail, a memory (16) for receiving holding parts (51, 19) is arranged. Apparatus according to claim 1, characterized in that the chain is transversely to the transport direction curvable. Apparatus according to claim 1, characterized in that the returning guide rail extends to a reel changer of the folder upstream printing unit. Device according to one of claims 1 to 3, characterized in that the guide rail (09), the returning guide rail and possibly the intermediate memory (16) are formed by a continuous rail or a continuous rail system. Device according to one of claims 1 to 4, characterized in that the Memory (16) has a separating device for separating the holding parts (19, 51) of their respective material webs (01) is upstream. Device according to one of claims 1 to 5, characterized in that the former (08) in the cutting direction of the cross-cutting device (24) is displaceable. Device according to one of claims 1 to 6, characterized in that the guide rail (09) in the amount of the former (08) is twisted. Device according to one of claims 1 to 7, characterized in that the guide rail (09) in front of the former (08) in the running direction of the web (01) stretchable guide rail portion (57). Device according to one of claims 1 to 8, characterized in that the guide rail (09) between the first capping means (11) and the second capping means (12) has a curved portion (13) and at the entrance of the second capping means (12) passes , Apparatus according to claim 5 and 9, characterized in that the separating device on the guide rail (09) between the curved portion (13) and the memory (16) is arranged. Device according to one of the preceding claims, characterized in that the guide rail (09) extends continuously from a roll changer of a printing unit upstream of the folder to behind the former (08) or the first capping device (11). Apparatus according to claim 2, characterized in that the chain is transverse to the transport direction curvable. Apparatus according to claim 12, characterized in that the chain has rollers with longitudinal axes and that the virtual extension of the longitudinal axes in a curved state intersect at a point, so that the chain has a radius of curvature (R51) smaller than 1000 mm. Apparatus according to claim 13, characterized in that the radius of curvature (R51) is less than 600 mm. Device according to one of the preceding claims, characterized in that at least one guide rail (09) is guided laterally along the former (08). Device according to one of the preceding claims, characterized in that at least one guide rail (09) is guided along at least one inclined at an acute angle to the transport direction side of the former (08). Device according to claim 11, characterized in that at least two reel changers are arranged and a guide rail of each roll changer (09) extends. Device according to one of the preceding claims, characterized in that the guide rail (09) spaced from the former (08) is arranged. Device according to one of the preceding claims, characterized in that at least one guide rail (09) with respect to a plan view of the former (08) extends approximately parallel to a side edge of the former (08).

Images