EP1334940B1 - Longitudinal folding device - Google Patents

Description

The invention relates to longitudinal folding devices according to the preamble of claim 1.

EP 04 77 769 B1 is a gluing device, for. B. a cross gluing device known.

From US 51 69 082 A a device has become known with which a plurality of U-shaped incisions in two superimposed paper webs be that both paper webs get caught.

DE-AS 12 73 483 shows a method and a device for tongue stitching several sheets of writing and copy paper laid one on top of the other.

Thread stitching devices are e.g. B. by DE 195 23 812 A1 and DE 19 31 337 C. known.

Blocking several paper webs by means of electrostatic charge is e.g. B. by the DE 31 17 419 A1 and WO 98/43904 have become known.

The US 58 27 166 A shows a device for connecting two Cigarette paper webs (so-called "cold welding") by means of a knurling device.

DE 22 41 127 C describes a device for pulling material webs in Web-fed rotary printing machines have become known. It’s going to be a finite feeder, z. B. used in the form of a draw chain. The pull chain has a side Hanging device for a paper web start. The length of the chain is like this chosen that they are approximately the maximum of the paper web in a printing unit continuous route corresponds. Several electromotive, to each other Synchronized drives act simultaneously on the feed chain around them along one To move leadership. Switchable points allow changing the direction of the feed chain. Storage tubes are used to store the feed chain.

A stapler for stapling multiple sheets of paper outside a folder is made known by DE 11 89 562.

EP 05 33 042 A1 shows a roller for guiding paper webs with an annular groove for a traction device.

The post-published WO 00/10808 discloses a reinforcement part for a Infeed tip of a paper web with skewers penetrating the paper web.

The CH-PS 34 22 41 describes a permanent transport device for finite sheets of paper.

DE 196 12 924A1 is a device for automatically feeding a Known at the beginning of a paper web, in which the paper web by means of endless, driven conveyor belts is guided over turning bars or a former.

WO 99/47446 and EP 04 15 077 A1 disclose devices for longitudinal folding with paper deflecting agents.

DE 27 54 179 A discloses a longitudinal folding device in which the sides of the Paper web can be electrostatically charged by means of rollers to prevent fluttering avoid.

The invention has for its object to provide a longitudinal folding device.

The object is achieved by the features of claim 1.

The advantages that can be achieved with the invention are, in particular, that the Paper web feed z. B. over the former and beyond it, through the gap between the former folding rollers into a downstream unit, such as pull rollers, Cross folding units, etc. can be done. Retraction times can be minimized considerably. When used for pulling in via a longitudinal folding funnel, this can manual insertion of the paper webs or a strand into the z. B. funnel folding rollers already made to rotate can be avoided.

In addition, no special feed tip is necessary.

Embodiments of the inventions are shown in the drawing and are in described the following in more detail:

Fig. 1

eine Vorderansicht eines Falztrichters mit angetriebenen bandförmigen oder zahnriemenförmigen Zugmitteln, die entlang eines Trichtereinlaufbleches bewegt werden, an den Trichterflanken umgelenkt und schließlich entlang der Trichterflankenbleche bewegt werden, bevor sie vor den Trichterfalzwalzen in das Innere des Längsfalztrichters geführt werden;

Fig. 2

eine Seitenansicht nach Fig. 1, jedoch ohne Seitengestelle mit schematischer Darstellung des Antriebes eines endlosen oder endlichen Zugmittels mit Spießen im Zusammenwirken mit einer Eindrückeinrichtung zum Eindrücken der Papierbahnen bzw. eines verblockten Stranges auf die Spieße;

Fig. 3

einen Querschnitt III-III durch eine Führung eines bandförmigen Zugmittels in Form eines Bandes oder Zahnriemens nach Fig. 1, Schnitt um 90° gedreht;

Fig. 4

einen Längsschnitt IV-IV durch die Führung des Zugmittels in Form eines Bandes oder Zahnriemens nach Fig. 3;

Fig. 5

eine Seitenansicht eines bandförmigen bzw. zahnriemenförmigen Zugmittels in Form eines Bandes oder Zahnriemens mit einer Mehrzahl von Spießen;

Fig. 6

eine Draufsicht auf das Zugmittel nach Fig. 5;

Fig. 7

ein Beispiel einer Andrückrolle einer Eindrückeinrichtung im Schnitt;

Fig. 8

eine Seitenansicht eines endlichen oder endlosen Zugmittels in Form einer Rollenkette mit Spießen;

Fig. 9

eine Draufsicht auf das Zugmittel nach Fig. 8;

Fig. 10

eine Stirnansicht auf das Zugmittel nach Fig. 8;

Fig. 11

eine Darstellung einer an einer Unterseite eines Einlaufbleches befestigten Führung (im Schnitt) mit einem Rollenkettenglied mit an ihm befestigten Spieß und einem Abstützblock zur Abstützung der Spieße während des Aufnadelns von Papierbahnen bzw. einem Strang;

Fig. 12

eine perspektivische Darstellung mehrerer, je einen Spieß aufweisende Zugmittelglieder in einer Führung;

Fig. 13

einen Längsfalztrichter mit maschinell angetriebenen Trichterfalzwalzen, angetriebener Einführungswalze, einem Gleitblech zur Führung von Papierbahnen bzw. eines verblockten Stranges, Trichterflankenblechen und zu ihnen beabstandete Papierleiteinrichtungen; eines entlang der Mittellinie des Gleitbleches, der Einführungswalze, des Längsfalztrichters geführten endlichen oder endlosen Zugmittels. Aus einem Längsschlitz im Gleitblech, Trichtereinlaufblech und einer Nut der Einführungswalze herausragende Spieße Auf die Spieße aufgenadelte Papierbahnen bzw. ein verblockter Strang, mit der Darstellung von elektrischen Isolatoren zur Verwendung bei elektrostatischer Verblockung der einzelnen Papierbahnen zu einem verblockten Strang und wahlweise zusätzliche Einrichtung;

Fig. 14

schematische Darstellung von Einrichtungen zur Verblockung mehrerer Papierbahnen zu einem verblockten Strang unter Anwendung von rotierenden, walzenförmigen Ladeelektroden zur elektrostatischen Verblockung. Des weiteren eine alternative Einrichtung zum stoffschlüssigen Verblocken unter Anwendung von Klebemitteln zum stoffschlüssigen Verbinden mehrerer Papierbahnen zu einem verblockten Strang. Außerdem ist eine fakultativ verwendbare Einrichtung zum Erzeugen von mechanischen Schwingungen (Vibrationen) der Leiteinrichtung für die Papierbahnen bzw. den verblockten Strang am Längsfalztrichter;

Fig. 15

eine Vorrichtung zum stoffschlüssigen Verbinden zweier aufeinanderliegender Papierbahnen mittels Rändelung;

Fig. 16

eine schematische Darstellung eines Antriebes für eine Hammer-Rolle (Rändelrolle);

Fig. 17

einen Schnitt XVII -XVII durch Fig. 16;

Fig. 18

eine Zungenhefteinrichtung in schematischer Darstellung, zur Erzeugung eines formschlüssig verblockten Papierbahnstranges aus einer Mehrzahl von Papierbahnen;

Fig. 19

eine Hefteinrichtung mit Metallklammem in schematischer Darstellung zur Erzeugung eines formschlüssig verblockten Stranges aus mehreren Papierbahnen;

Fig. 20

eine Fadensiegeleinrichtung in schematischer Darstellung zur Erzeugung einer formschlüssigen Verbindung von mehreren Papierbahnen zu einem verblockten Strang;

Fig. 21

eine auf ein Trichtereinlaufblech zu- und wegbewegbare langgestreckte Führung, vorgesehen zum Rundumlauf eines endlosen oder eines oder mehrerer endlicher angetriebener Zugmittel, deren Spieße im Bereich des Trichtereinlaufbleches auf dieses zu gerichtet sind, zur Verwendung zum Transport von auf dem Trichtereinlaufblech ankommenden einzelnen oder mehreren Papierbahnen oder eines verblockten Stranges;

Fig. 22

eine Einrichtung in schematischer Darstellung, zum Antrieb und Führung von endlichen Zugmitteln mit Spießen, die zumindest zeitweise in den Laufpfad von zuzuführenden Papierbahnen bzw. eines verblockten Stranges durch einen Längsschlitz eines Führungsbleches hindurch hineinragen (Arbeitsführung) und diese aufnadeln, mit einer zusätzlichen, rundum laufenden Speichereinrichtung für das endlose Zugmittel, wobei die Arbeitsführung und die Speicherführung mittels steuerbarer Weichen miteinander verbindbar oder probierbar sind;

Fig. 23

eine Einrichtung zur Erzeugung einer Klemmpressung zwischen mehreren aufeinanderliegenden Papierbahnen und einem Zugmittel und/oder zum Aufdrücken der aufeinanderliegende Papierbahnen auf Spieße und einen Zugmittelantrieb für endliche und endlose Zugmittel mit oder ohne Spieße;

Fig. 24

eine unterhalb eines Laufbleches angeordnete Führung für endlose oder endliche Zugmittel mit oder ohne Spieße auf einem Führungsträger. Der Führungsträger ist in und entgegen das Laufblech so bewegbar, daß bei Anwendung eines Zugmittels ohne Spieße das Zugmittel selbst oder bei Anwendung eines Zugmittels mit Spießen die Spieße durch einen Längsschlitz im Laufblech hindurch in eine Position oberhalb der Gleitfläche des Laufbleches, d. h. in den Laufpfad der Papierbahnen bzw. des Stranges bringbar angeordnet sind;

Fig. 25

an einem Zugmittel befestigte, heb- und senkbare Spieße;

Fig. 26

an einem Zugmittel schwenkbar (kippbar) befestigte Spieße in aufrechter Stellung;

Fig. 27

einen Schnitt XVII - XVII in Fig. 26;

Fig. 28

an einem Zugmittel schwenkbar (kippbar) befestigte Spieße, die in Einziehrichtung umgeschwenkt (umgekippt) sind;

Fig. 29

einen Schnitt in XXIX - XXIX in Fig. 27;

Fig. 30

eine unterhalb eines Laufbleches angeordnete, feste langgestreckte Führung, vorgesehen zum Rundumlauf eines endlosen oder eines oder mehrerer angetriebener Zugmittel mit verschwenkbaren Spießen und einer Einrichtung zum "Verschwenken/Kippen" und Wiederaufrichten der verschwenkten/umgekippten Spieße;

Fig. 31

eine Einrichtung zum "Verschwenken (Umkippen)" und "Wiederaufrichten" der Spieße in Arbeitsstellung, "Verschwenken (Umkippen)" der Spieße, wobei die Einrichtung in den Rücklaufpfad einwirkt;

Fig. 32

die Einrichtung nach Fig. 31, jedoch in Arbeitsstellung "Wiederaufrichten";

Fig. 33

eine in axialer Richtung teilbare und auf einen Durchlaß stellbare Walze (Einführungswalze oder Trichterfalzwalze).

Show it:

Fig. 1

a front view of a former with driven band-shaped or toothed belt-shaped traction means, which are moved along a hopper inlet plate, deflected at the former flanks and finally moved along the former flank plates before they are guided in front of the former folding rollers into the interior of the longitudinal former;

Fig. 2

a side view of Figure 1, but without side frames with a schematic representation of the drive of an endless or finite traction means with skewers in cooperation with an impression device for pressing the paper webs or a blocked strand on the skewers.

Fig. 3

a cross section III-III through a guide of a band-shaped traction means in the form of a band or toothed belt according to Figure 1, section rotated by 90 °.

Fig. 4

a longitudinal section IV-IV through the guide of the traction means in the form of a belt or toothed belt according to Fig. 3;

Fig. 5

a side view of a band-shaped or toothed belt-shaped traction means in the form of a band or toothed belt with a plurality of skewers;

Fig. 6

a plan view of the traction device according to Fig. 5;

Fig. 7

an example of a pressure roller of a pressing device in section;

Fig. 8

a side view of a finite or endless traction means in the form of a roller chain with skewers;

Fig. 9

a plan view of the traction device according to Fig. 8;

Fig. 10

an end view of the traction device according to Fig. 8;

Fig. 11

a representation of a guide attached to an underside of an inlet plate (in section) with a roller chain link with a skewer attached to it and a support block for supporting the skewers during the needling of paper webs or a strand;

Fig. 12

a perspective view of several, each having a spit traction elements in a guide;

Fig. 13

a longitudinal folding former with mechanically driven former folding rollers, driven introduction roller, a sliding plate for guiding paper webs or a blocked strand, former flank plates and paper guide devices spaced from them; a finite or endless traction means guided along the center line of the sliding plate, the insertion roller, the longitudinal folding hopper. Skewers protruding from a longitudinal slot in the sliding plate, funnel inlet plate and a groove of the insertion roller.

Fig. 14

schematic representation of devices for blocking several paper webs to a blocked strand using rotating, roller-shaped charging electrodes for electrostatic blocking. Furthermore, an alternative device for cohesive blocking using adhesives for cohesively connecting a plurality of paper webs to form a blocked strand. In addition, an optionally usable device for generating mechanical oscillations (vibrations) of the guide device for the paper webs or the blocked strand on the longitudinal folding former;

Fig. 15

a device for materially connecting two superimposed paper webs by means of knurling;

Fig. 16

a schematic representation of a drive for a hammer roller (knurled roller);

Fig. 17

a section XVII -XVII through Fig. 16;

Fig. 18

a tongue stitching device in a schematic representation, for producing a positively interlocked paper web strand from a plurality of paper webs;

Fig. 19

a stapling device with metal clips in a schematic representation to produce a form-locked block of several paper webs;

Fig. 20

a thread sealing device in a schematic representation to produce a positive connection of several paper webs to a blocked strand;

Fig. 21

an elongated guide that can be moved towards and away from a funnel infeed plate, provided for the rotation of an endless or one or more finely driven traction means, the spikes of which in the area of the funnel infeed plate are directed towards the latter, for use for transporting individual or several paper webs arriving on the funnel infeed plate or a blocked strand;

Fig. 22

a device in a schematic representation, for driving and guiding finite traction means with skewers, which at least temporarily protrude into the path of paper webs to be fed or a blocked strand through a longitudinal slot of a guide plate (work guide) and pin it on, with an additional, all-round running Storage device for the endless traction means, the work management and the storage management being connectable or testable with one another by means of controllable switches;

Fig. 23

a device for generating a clamping pressure between a plurality of superimposed paper webs and a traction means and / or for pressing the superimposed paper webs onto skewers and a traction drive for finite and endless traction means with or without skewers;

Fig. 24

a guide arranged below a running plate for endless or finite traction means with or without skewers on a guide carrier. The guide beam is movable in and against the running plate so that when using a traction device without skewers the traction device itself or when using a traction device with skewers, the skewers through a longitudinal slot in the running plate into a position above the sliding surface of the running plate, ie in the running path of the Paper webs or the strand are arranged bringable;

Fig. 25

skewers attached to a traction device that can be raised and lowered;

Fig. 26

skewers attached to a traction device in an upright position;

Fig. 27

a section XVII - XVII in Fig. 26;

Fig. 28

skewers attached to a traction mechanism which are pivoted (tilted) in the direction of retraction;

Fig. 29

a section in XXIX - XXIX in Fig. 27;

Fig. 30

a fixed, elongated guide arranged underneath a running plate, provided for rotating an endless or one or more driven traction means with pivotable spikes and a device for "pivoting / tilting" and straightening the pivoted / tilted spikes;

Fig. 31

a device for "swiveling (tipping over)" and "re-erecting" the skewers in the working position, "swiveling (tipping over)" the skewers, the device acting in the return path;

Fig. 32

31, but in the "re-erection" working position;

Fig. 33

a roller that can be split in the axial direction and that can be set on a passage (insertion roller or funnel folding roller).

One or more paper webs 05; 06; 07; 12 or one of several Strands 08, 140 of paper webs run into a so-called web or strand feed device 111 a. It ends just before a former feed roller 16 and is long enough to accommodate incoming, drawn or pushed paper webs 05; 06; 06; 12 or a strand 08, 140 from the respective feed devices to be able to take over (Fig. 1, Fig. 2, Fig. 13).

The paper webs 05; 06; 07; 12 or strand 08; 140 become means by themselves known paper web drawing systems up to the web or strand feed device 111 moved in and then transported on. In the final stages of this The paper webs or strand of which they are each pulling process holding paper web start fastenings separated. Such, not shown separator consists z. B. from rotating upper and lower knife, between which the paper webs / strand are drawn. After disconnecting the The finite infeed chains in fixed guide rails to a depot.

The web or strand feed device 111 (FIG. 1) essentially consists of one left side frame 113 and a right side frame 114, between which z. B. a horizontally aligned or at an angle to the horizontal in the paper web running direction Alpha (z. B. 30 °) inclined side frame fixed sliding plate 11 is arranged. This Sliding plate 11 can have a closed sliding surface (upper surface), but also openwork, e.g. B. be designed lattice-shaped. Its job is to prevent the incoming paper webs 05; 06; 07; 12 or strand 08 falls down or those transported by one or more feed system (s), respectively individual webs to support until they z. B. from one in the side frames 113; 114 stored, driven combination roller or roller 03 and one with it in Roll contact standing, also in the side frames 113; 114 stored Pressure roller 04 or pressure roller 04 can be detected. At least that Combination roller / roller 03 is electromotive at a peripheral speed driven, which is the same or a little larger than that specified by the machine Web-threading. The union roller / roll 03 and the Pressure roller or pressure rollers 04 roll onto one another in a slot or slots from the sliding plate 11. The union roller 03 can easily over a sliding surface 126 of the sliding plate 11 protrude. However, the paper web feeding process can - in Paper web direction seen - also end behind the unification roller 03.

In the exemplary embodiments described (for example according to FIG. 1), the area begins Web or strand advance device 111 a middle running path 121 (if possible) and / or - if necessary - a left outer run path 122 and a right outer run path 123 for a finite or endless traction means 33; 34 and 124, respectively.

In the area of the sliding plate 11 is 33; 34; 124 at least one deflection or train wheel 37; 38 provided. This deflection or train wheels 37; 38 have theirs Rotation axis below the sliding plate 11 and protrude through slots in the sliding plate 11 through or they lie with their periphery below the upper sliding surface 126 or below the sliding plate 11. The deflection or tension wheels 37; 38 can be as pure Guide wheels but also as drive wheels for the traction means 33; 34; 124 can be designed. If they as train wheels 37; 38 serve, they are via gear or electromotive, position-controlled individual drives driven such that they each of them promotional traction means 33; 34; 124 synchronized with the preset paper web feed speed move. With each of the deflection or train wheels 37; Be 38 the / the traction means 33; 34; 124 deflected or transported or moved so that movement of the traction means 33; 34; 124 along the sliding plate 11 in the intended Paper web running direction in the direction of the funnel nose 24.

The finite or endless, driven traction means 33; 34; 124 point directly at them attached, needle-like skewers 35 directed towards the paper webs or the strand on (Fig. 3, 4, 5, 6, 8, 9, 10, 11, 12) and with them act deflection or tension wheels 37; 38 and pressure roller (s) 59; 60 together. The pressure rollers 59; 60 can each have their own Have speed and / or rotation angle adjustable electric motor 215 (Fig. 23). she can each by means of a pneumatic cylinder 64 fixed to the frame Sheath of the cooperating deflection or tension wheel 37; 38 switched on and off become. These pressure rollers 59; 60 are each with one for their entire Provide circumferentially extending groove 63, so that left and right of the groove 63 each have a pressure plate 75, 85 (FIG. 7). This puncture 63 has the Task, a damage-free passage of the skewers 35 through the area of her to ensure each assigned pressure roller 59. Next to the puncture provided left and right pressure plates 125; 130 press when passing the Paper webs 05; 06; 07; 12 or the strand 08, 140 him or her on the skewers 35 so that they are reliably needled. That is, the paper webs 05; 06; 07; 12 or more or the strand 08 are with the traction means or 33; 34; 124 over the Skewers 35 in a positive fit. Due to rough jackets of the pressure plates 125; 130 can on the web (s) or strand 08 additionally has a force for moving the webs forward or the strand in the direction of the web or strand feed device 112 by means of Friction are acted.

The pressure rollers 59; 60 can be made of hard material, e.g. B. ceramic, metal or consist of hard plastic. But you can also choose a softer one rubber-elastic material exist, or have such a jacket.

Viewed in the paper web running direction, the web or strand advance device 111 the web or strand feed device 112 is connected downstream. This web or strand feeder 112 has the task of one or more paper webs 05; 06; 07; 12 or the strand 08, 140 of a further processing device 116, e.g. B. one Feed the folder. Here, in the area of the web or strand feed device 112 provided further processing device, e.g. B. one on the paper webs or the longitudinal cutting device acting on the strand or a longitudinal folding device 18 provided, but need not be.

The web or strand feed device 112 consists essentially of a left one Side frame 117 and a right side frame 118, to which directly or indirectly to the Side frames 113; 114 of the web or strand feed device 111 are mounted. in the Embodiment (Fig. 1, Fig. 2, Fig. 13, Fig. 22) are in the two side frames 117; 118 stored driven insertion rollers 16, - z. B. in the form of a Hopper inlet roller 16 - provided. A drive of these funnel inlet rollers 16 can done electromotively by means of a speed or position-controlled drive motor 15. But it is also possible to use a different mechanical drive from the folder 116 ago or driven by another module. About an electromotive Control or regulation of the drive motor 15 are the peripheral speeds the hopper inlet roller 16 synchronized to the predetermined paper web speed or set in a preselectable ratio. With the hopper infeed roller (Insertion roller) 16 can interact with pulling rollers placed on it.

In the exemplary embodiment, a web or strand feed device 112 is a fixed on the side frame, at least in the direction of the side frames 117; 118 slidable Longitudinal folding former 18 is provided. The longitudinal folding former 18 each has a former plate 21, which on both sides by converging at an acute angle Funnel flanks 22; 23 is limited. At the funnel flanks 22; 23 closes one Funnel nose 24, which between driven funnel folding rollers 26; 27 ends.

The two, e.g. B. electromotively driven, funnel folding rollers 26; 27 are in each case a front and a rear bell cradle 28; 29 stored, which again in each case on a folder frame 31; 32 are arranged.

When using endless or finite traction means 33; 34; 124 are along the Movement or running path 17; 19; 121; 122; 123 one or more traction drives 85 provided. They each consist of e.g. B. from a speed and / or position controlled Electric motor 215 with one on the traction means 33; 34; 124 adapted drive wheel 37; 38 such as B. pinion, sprocket, etc. (Fig. 23). However, so-called three-phase current can also be used synchronous and / or asynchronous linear motors can be used. These linear motors can be provided with superimposed DC braking. The primary part with the Windings is fixed to the frame, while the secondary part, i.e. H. which moving part, the traction means 33; 34; 124 forms. It is then made of ferromagnetic Material or to a large extent carried out with this material.

The drive of the traction means 33; 34; 124 can also z. B. via gear from one Synchronous shaft of the paper guide or the downstream folder 116 take place.

Along each movement or running path 17; 19; 121; 122; 123 can one or several traction mechanism drives synchronized with one another of the type just described be provided. Otherwise, the endless traction means 33; 34; 124 by means of fixed guide rollers 43, 44; 47, 48; 49, 50 out. The guide rollers 44; 47 to 50 are each in profile on the side - z. B. the underside of the traction means 33; 34 - adapted to which they attack. You can e.g. B. as spiked wheels, gears, Sprockets, toothed belt pulleys or rollers with a guide groove, etc. executed his.

The movement or running paths 17; 19; 121; 122; 123 for the traction means 33; 34; 124 begin - seen against the direction of paper travel - at a sufficient distance in front of the Insertion roller 16, e.g. B. the hopper inlet roller 16; on the sliding plate 11, at one Path detection line 20. Below path detection line 20 is the line across the width of the sliding plate 11 to understand, in each case the path of movement of the paper webs or the strand 08, 140 on the sliding plate 11 from the trajectory of the Ends of the tips of the skewers 35 is cut. The over the longitudinal folding former 18 in the paper web 05 to 07 to be fed in the folder 116; 12 or strand 08, 140 z. B. up to the web detection line 20 or beyond either of the each of the paper web 05, 06, 07, etc. assigned to the paper feed means or in another way - e.g. B. by means of pinch rollers - over this web detection line 20 pushed away.

At the web detection line 20, the paper webs 05, 06, 07 etc. or the Strand 08, 140 from the spits 35 of the traction means 33; 34 pierce. For support of this process are each in the path of movement from the sliding plate 11 emerging tips of the needle-like skewers 35 one or more driven or non-driven pressure rollers 59; 60 provided. These roles 59; 60 can - like already described above - a coat z. B. from rubber-elastic or metallic Have material and where they interact with the skewers 35, respectively have the all-round groove 63 (Fig. 7). Through it a safe needling of the incoming paper webs 05, 06 etc. or of the strand 08, 140 on the skewers 35 and thus on the traction means 33; 34; 124 can be guaranteed without damage. It but can also rubber-elastic pressure rollers 59; 60 without all-round recess 63 be provided.

The skewers 35 for endless or finite traction means can each at least on their the paper webs 05; 06; 07 etc. or the strand 08, 140 facing free End 66 with a stripping-difficult device or stripping-prevention device 68 be provided. This can e.g. B. as a profile of the free end 66 of the skewers 35, z. B. be made barb-like. For this purpose, the free end 66 can be made up of a plurality of form-fitting truncated cones and an end cone exist (Fig. 8 to 12).

The free ends 68 can also be designed differently and an unwanted one Stripping the webs 05; 06; 07; 12 or the strand 08, 140 from the skewers 35 at least complicate. So z. B. the skewers 35 be unprofiled and with a Be coated material that has a very high coefficient of friction, for. B. is very coarse (e.g. coarse-grained corundum).

It is possible to use one or more, e.g. B. two paths 17; 19; 121; 122; 123 and thus a corresponding number of finite or infinite Traction means 33; 34; 124; 87th

If only a single path 121 is used, it preferably runs along the vertical center line 25 of the longitudinal folding former 18 to just before the former 24, then through an opening in the funnel inlet plate 21 around a deflection roller 30 behind the Hopper inlet plate 21. From there, path 121 leads over to the rear of the Funnel inlet plate 21 arranged fixed rail guides 80; 88; 89 (at finite traction means via guide and / or drive rollers, e.g. B. 47; 48; 49; 50) to finally to the web detection line 20.

When using several, e.g. B. two running in parallel synchronized side by side endless or finite traction means z. B. 33; 34; 124 their path, z. B. 17, 19 at a lateral distance c of several centimeters from the straight left Side edge 45 or straight right side edge 51 of the funnel inlet plate 21 away. From here, the path 17, 19 assigned to them leads around the lateral one Funnel flanks 22 and 23 around.

The normally existing side opening between the left and right flank of the funnel 22; 23 and the left-hand funnel folding roller 26 or right associated with it Funnel folding roller 27 can have a funnel-fixed left funnel flank plate 55 and a funnel-fixed right-hand funnel side plate 65 may be closed (the Funnel flank plates 55; 65 or differently designed covers of the side openings (e.g. bars, grids) are also advantageous when moving form-fitting, material-fitting or non-positively blocked strands 140 via the longitudinal folding former 18). at Use of funnel flank plates 55; 65 cross the moving endless traction means 33; 34 through an opening in them near each other respectively assigned funnel folding roller 27 and 28, and get into the interior of the Folding former 18. The path of the endless traction means finally leads over a number Guide rollers 43; 44; 47; 48; 49; 50 to the traction drive wheel 37 and finally to Path detection line 20 etc. etc. Endless band-shaped traction means 33, 34; 124 can are guided over grooves in a sliding surface 41 of the funnel plate 21. In this case is a sufficiently large part of the traction means 33; 34 designed without skewers 35. While of the pull-in process, the traction means 33; 34 in sync with the incoming Paper web or paper webs 05, 06, 07, 12 or strand 08, 140 are moved such that only the part of the endless traction means 33; 34, which has skewers 35, along the Funnel plate 21 or via the funnel cheeks 22; 23 moves. Then have them Paper webs 05 to 07, 12 or strand 08, 140 the driven funnel folding rollers 26; 27 reached and have been seized by them, the traction means 33; 34; 124 so moves that on the funnel plate 21 and the funnel flanks 22; 23 and the Funnel flank plates 55; 65 finally only the part of the traction means 33; 34; 124 is located that has no skewers 35.

Endless belt-shaped feed belts 33; 34; 124 are 36 over their upper run driven. For example, belt drive wheels 37; 38 provided that the circumference Have a plurality of driving pins 39 which, for. B. with holes in the traction means 33; 34; 124 cooperate to them over the hopper feed roller 16 and the top Funnel plate 21 to move. The funnel plate 21 has 41 in its upper sliding surface each endless traction means 33; 34; 124 a groove.

Endless traction means 33; 34; 124 can also be designed as a toothed belt with skewers 35 his. It is then also only on half the total length of the traction means 33; 34; 124 Transport skewers 35 are provided. Approximately 50% of its length is thus designed to be skewer-free.

Endless traction means 33; 34; 124 can e.g. B. from flexible strip material, for. B. from Plastic or perforated steel band (e.g. 0.2 mm thick) or consist of ropes.

Each belt drive wheel 37; 38 (with teeth or spikes) is driven by a position and speed-controlled drive motor 54; 56 driven. Each traction means 33; 34; 124 is in the area of its lower run 46 by a sensor 57; 58 queried to determine the position of the beginning of the spike-free area of each traction means 33; 34 to be determined.
In this way it can be controlled that the part of the traction means 33; 34; 124, which has skewers 35, is not in the region of the longitudinal folding former 18 after the end of the pulling-in process, that is to say during production.
In addition, the sensor query when paper webs 08; 09 controlled that a plurality of endless traction means 33; 34; 124 per longitudinal folding hopper 18 with respect to the skewer-free area are moved so that they are always offset from one another, e.g. B. the left or right traction means 33; 34; 124 is in positive engagement with the paper webs to be drawn in or the strand.

When using finite traction means 33; 34; 124; 87 in the field of Funnel flank plates 55; 65 are arranged by guides 88 so that only the Spits 35 through a slot in the funnel flank plates 55; 65 protrude through the needled paper webs or strand 140 in the direction Funnel folding roller 26; 27 to move. For pressing on the paper webs or the Strands 140 are funnel or frame-fixed pressing devices 173; 59; 60 intended. When using axially divisible and movable on "gap" Former fold rollers 232 (FIG. 33) and use of a finite traction means 33; 34; 124 with skewers 35, the pulling process can be done as far into the folder.

When feeding paper webs using finite or endless traction means or Retractable pulling devices (e.g. pushing or pulling a blocked one Strand) under frictional action or a strand 140 along the Funnel inlet plate 21 of the two funnel flank plates 55; 65 it can be very helpful be to provide a funnel guide 273.

The funnel guiding device 273 is made of an upper funnel cover plate 274. It lies opposite the funnel inlet plate 21 and is spaced apart from it and can be completely or partially cover. Cohesive with the funnel cover plate 274 or A left-hand 61 and a right-hand guide device 62 are positively connected. they are spaced apart from the funnel flank plates 55 or 65th

These control devices 61; 62 can e.g. B. from one or more rods; grid plate and consist of sheet metal closed surface. You are each at the Cross-sectional shape of the funnel flank plates 55 and 65 adapted.

The control devices 61; 62 start z. B. just above the top of the Funnel flank 22; 23 and each end shortly before the driven one assigned to it Funnel folding roller 26; 27th

The distance between the guide devices 61; 62 to the funnel flanks 22; 23 and the Funnel flank plates 55 and 65 is, for. B. chosen so large that skewers 35 in the room between funnel flank plates 55; 65 and the guide devices 61 can move, without the tips of the skewers 35 just not touching them. However, it can also an arrangement can be chosen in which the tips of the skewers 35 are the longitudinal grooves or Longitudinal slots in the guide plates of the lateral guide devices 61; 62 in vertical Cross direction. For this purpose, the lateral guide devices 61; 62 out one or more longitudinally aligned to each other in the paper web running direction spaced rods exist between which there are at least the tips of the skewers 35 move. This ensures that the impaled paper webs or Strand 08; 140 can not free themselves from the skewers 35.

The lateral guide devices 61; 62 are applicable to Paper web feeding devices over the longitudinal folding funnel 18, when using endless and finite traction means 33; 34; 124; 87. However, also with paper web retractors via the funnel 18, in which the individual via the funnel 18 in the folder 116 to be drawn in paper webs before entering the Funnel folding rollers 26; 27 cohesive (e.g. by gluing, parchment, Cold welding), form-fitting (e.g. by tacking, sewing, push-through perforation, Tongue stitching) or non-positive (e.g. electrostatic strand stitching) connected to each other, d. H. are "screwed up" with each other.

The device works using endless traction means 33; 34; 124 with skewers 35 as follows:
All drive motors 54; 56 are e.g. B. executed as frequency controlled three-phase motors. It can e.g. B. 4-10 drive motors per traction means 33; 34; 124 may be provided. They are controlled by the angle of rotation and speed and run synchronously with each other.

The drive motors 54; 56 drive the belt drive wheels 37; 38 at. At the beginning of the Feeding process starts when using several feed belts 33; 34; 124 one delayed by them. This ensures that always needles 35 at Arrival of the paper webs or strand 08; 140 in the web or strand feed device 111 (Fig. 1 to 4) picked up and moved by transport needles 35 become. The pressure rollers 59 for each traction means 33; 34; 124 are involved in this. Short before the first leading beginning of the paper web, the former folding rollers 26; 27 reached, is the paper web 05; in each case by means of a fork-shaped stripper 69; 06, 07 etc. or the strand 08, 140 lifted from the transport needles 35 and then through Push the funnel folding rollers 26; 27 fed.

Immediately after completion of the pull-in process - d. H. during production over the longitudinal folding funnel - all traction means z. B. 33; 34; 124; 87 so moved and finally stopped in the areas of web or strand advance equipment 111 and longitudinal folding former 18 none in the path of movement of the webs or of the strand protruding skewers 35 more, but only the part of the traction means 33; 34, the has no skewers 35. The skewers 35 are each located in the area of the lower strands 46 of the endless traction means 33; 34; 124. This ensures that the movement path the paper webs or strand 140 running in the direction of production unhindered can move over the former 18.

If tabloid production is envisaged, 18 each outer, finite or endless traction means 33; 34 each have a second, separately drivable assigned to inner, finite or endless traction means. The additional, "inner" second traction means are out of phase, but with the same Peripheral speed to the associated "outer", first traction means 33; 34 arranged drivable. This arrangement has the advantage that it is also slit Paper webs for the production of tabloid products are drawn in via the former 18 can be.

It is possible to use the endless traction means 33; 34 z. B. also as a rope, chain or toothed belt train.

The flexible traction means 33; 34; However, as already mentioned above, 124 can finally be designed. Then they are fixed in frame 88 (FIG. 22) or in the former Guides 80 moved and guided (Fig. 11, 12, 13, 21, 22; 24).

As finite traction means 33; 34; 124 are particularly suitable for driving chains, e.g. B. sleeve, Toothed or roller chains, but also toothed belts. (When using chains roller chains movable in a guide are particularly suitable. Such chains are e.g. B. through US 52 01 269 A, Fig. 1B, become known).

The rollers 70 of the chain-shaped traction means 33; 34; 124, e.g. B. roller chains (Fig. 8, 9, 10, 11, 12) are rotatably mounted on bolts 71. Are also on the bolt 71 left tab 81 and right tab 82 of a first fork 72 and the two Tabs 90; 95 a second fork 73 articulated. The tabs of the forks 72; 73 are so spaced from each other that they are in each case around the bolt 71 can be pivoted. The two tabs 81; 82 of the first fork 72 are with a first base piece 76 integrally, z. B. welded and the two tabs 90; 95 of the second fork 73 is positively connected to a second base piece 77. In each case, the two forks with pin 71 and roller 70 form a chain link 78; 83; 84th Immediately adjacent chain links 78; 83; 84 are each about their own opposite base pieces 77 and 76 pivotally, thrust and Transferring tensile forces, positively connected by means of a swivel joint 79. The Swivel joints 79 must have at least a mobility f = 2 (universal joint). Of course, joints 79 with the higher mobility f = 3 (e.g. ball joint) used.

Preferably on the outer tabs 90; 95 support bracket 86 for Attachment of skewers 35 attached, e.g. B. welded (Fig. 8, 9, 10, 11, 12). The However, support bracket 86 can also be materially bonded (e.g. spot-welded) to it associated tab 90; 95 be attached. The support bracket 86 can also as Folding the tab 90; 95 itself can be designed, as shown in FIGS. 8 to 12. However, the support bracket 86 with its spit 35 can also be on the outside Tabs 90; 95 pivotable in or against the direction of movement of the person carrying it Traction means 33; 34; 124 may be arranged to selectively raise the skewers or flip before z. B. in a preselectable area of the funnel inlet plate 21st or the longitudinal folding former 18 arrive (FIG. 24). For the same purpose too reach, it would be possible to only pivot the skewers 35 (Fig. 25) or lift to be arranged lowerable on the traction mechanism.

The way in which a positive connection is established Slide sheet 11 fed paper webs or a strand 140 with the needle-like Skewers 35 having traction means 33; 34; 124; 07 is finite or endless In principle, traction means the same. This is shown in Fig. 2. It is shown there that the incoming paper webs / strand 140 from the pairing Union roller 03 / pressure roller 04 are gripped and in the detection area the downstream, driven pairing of pressure roller 59, 60 / pulling wheels 37; 38 reach.

It is important that an inlet gusset from pressure rollers 59; 60 and along one Curvature against the pressure rollers 59; 60 incoming finite or endless Conveyor traction means 33; 34; 124; 87 arises. Arrives at the paper web or paper webs or a strand 08, 140 between the pressure rollers 59; 60 and the needle-like Skewers 35 having traction means 33; 34; 124; 87 so the web or the webs or the strand 140 through the pressure roller 59; 60 in the needle-like skewers 35 of the moving traction means 33; 34; 124; 87 pressed to the bottom. Strand 140 or the tracks are now on the traction means 33; 34; 124 needled, so with him positively connected. The traction device (s) pull or push the needled paper webs or strand 08, 140 over the longitudinal folding former 18 in the catch area of the funnel fold rollers 26 and 27 into it.

To the finite collection means 33; 34; 124; 87 to be able to move are 88 fixed to the frame or "endless" guides 80 fixed to the longitudinal fold hopper. Such guides 80; 88 are shown as an example in FIGS. 11, 12. You can in the form of a profile bar 89 be designed (known for example from US 53 96 982 A) (Fig. 1, 11, 12). The guides 80; 88 can e.g. B. be designed as a profile bar 89. This essentially consists of a C-shaped profile with a body 91 and at right angles to it extending, parallel lower leg 92 and upper leg 93. Both the lower leg 92 and the upper leg 93 have a lower one Longitudinal groove 94 and an upper longitudinal groove 96. Both longitudinal grooves 94; 96 serve on the one hand as Guide and also as a tread for the rollers 70 of the traction means 33; 34; 124; 87. The Base body 91 has a mounting surface 97 on its upper side.

In the exemplary embodiments, shown in FIGS. 13, 22, 30, is on an underside the sliding plate 11, the funnel plate 21, funnel flank plates 55; 65 each Leadership 88; 80 in the form of z. B. a profile strip 88; 89 (Fig. 11; 12) designed and attached that when moving the feed means 33; 34 in the form of z. B. one Timing belt or a feed roller chain 87 whose skewers 35 through the longitudinal slot 99 or 98 protrude therethrough, and the paper web or paper webs 05; 06; 07; 12 or can pierce strand 08 140 safely.

Finite as well as endless traction means 33; 34; 124; 87 with skewers 35 are both suitable when using non-interconnected paper webs as well as when using one Strand 140 blocked several paper webs.

As in Fig. 13 z. B. is shown, is in the funnel plate 21 along its longitudinal axis of symmetry a longitudinal slot 98. The longitudinal slot 98 begins immediately afterwards the periphery of the hopper inlet roller 16 or guide roller 16 and ends briefly in front of or in the funnel nose 24. The sliding plate 11 has in front of the funnel inlet roller 16 likewise one or more longitudinal slots 99 running in the paper web running direction Longitudinal slots 98; 99 z. B. along the longitudinal axis of symmetry of sliding plate 11 and Hopper plate 21 are required if only one or three traction means Skewers 35 are / are guided over the funnel plate 21 or over the sliding plate 11. The longitudinal slots 98; 99 are only slightly wider than the diameter of each Skewers 35. This avoids that the skewers 35 are guided laterally and not can tip over.

Analogous to the construction of the funnel plate 21, funnel flank plates 55; 65 can be designed if the paper webs 05; 06; 07; 12 or the strand 08; 140 needled along them by means of finite or endless traction means 33; 34; 124; 87 should be moved.

So that the traction means 33; 34; 124 directly from the area of the sliding plate 11 in the Area of the funnel plate 21 can reach the funnel inlet roller 16 happen. You must along imaginary extension of the guides of sliding plate 11 Funnel inlet plate 21 at this point is sufficiently wide and deep by a puncture 101 stabbed. In this way, a short area is also formed good guidance for the traction means 33; 34; 124, e.g. B. the feed roller chain / timing belt. The Puncture 101 can be graded, as shown in Fig. 23, so that, as with the 11 and 12, a tread 102, a left roller guide surface 103 and a right roller guide surface 104 for the rollers 70 of the traction means 33; 34; 124 available.

The hopper inlet roller 16 - but also any other roller, e.g. B. the former fold rollers 26; 27, which is a finite traction means 33; 32; 124, e.g. B. in the form of a roller chain, one Toothed belt "must let pass" - can be made in one piece with a z. B. annular passage 235 fixed width 240 or divided - d. H. optionally axially extendable - are executed (Fig. 33), so that a passage 235 with adjustable width 260 results. In this case a bale 245 of the roller 16, e.g. Legs Hopper inlet roller, divided into a left part 106 and a right part 107. they are are arranged axially displaceable on or in one another. At least one of the two Parts 106; 107 of the roller 16, or both, are axially displaceable and in their respective Positions arranged in a lockable manner. In the shown in Fig. 33 Embodiment of the divided hopper inlet roller 16 has the left Hopper infeed roller part 106 a long spline shaft or, protruding to the right -peg 108 on. The / the spline shaft - / - can z. B. as a serrated spigot or also be designed as a K-profile pin, etc. The splined shaft or spigot 108 of the the left part 106 of the funnel inlet roller 16 (pin part 106) dips into a bore 109 a sleeve part 107 of the roller 16. The outer surface of the bore 109 is like this Profiles that the / the spline shaft / / and the bore 109 a narrow sliding fit form. In the production operation, the pin part 106 and sleeve part 107 of the roller 16 are so far collapsed that enough space for immersing a rotating Cutting knife remains. In this position, the parts 106; 107 captured.

Pin part 106 and / or sleeve part 107 could each be attached to the side frame supporting clutch, e.g. B. a positive clutch, z. B. a claw clutch, be spaced so that at times a sufficiently wide Passage 260 for the finite feed means 33; 34; 124; 87 is formed.

It would also be possible to use one through both parts 106; 107 continuous splined shaft 108 apply. The splined shaft 108 would have both ends in a side frame rotatable and by means of z. B. a position-controlled motor drivable.

Through the use of the endless or finite traction means 33; 34; 124; 87 each having needle-like skewers 35, it is therefore advantageous possible one or more paper webs or one of several paper webs composite strand 140 over the longitudinal folding hopper 18 to at least in the driven former folding rollers 26; 27 without manual actuation take them with the gap adjusted accordingly. The funnel fold rollers 26; 27 then either pull / push the combined strand 140 into the Folder 116.

The movement of the paper webs or of the strand 140 over the longitudinal folding former 18 takes place in this embodiment by means of a positive connection - z. B. by needling on skewers 35 - the paper webs or a strand 140 with the Traction means 33; 34; 124; 87th

Such positively held on one or more driven traction devices 33; 34; 124; 87 the paper webs / strand 140 reach the "catch area" of spaced from funnel inlet plate 21 and funnel flank surfaces 55; 65 arranged, flat or rod-shaped upper 155; 165 and lateral guide devices 61; 62 (Fig. 1, 13). These control devices have the task of moving Paper webs or the strand 140 around the two funnel flanks 22; 23 of "Longitudinal deflecting funnel 18" and "deflect" him / her along the inner guide surfaces 75; 85 of the lateral paper guiding devices 61; 62 to lead until she / he finally at least in the feed area of the driven hopper folding rollers 26; 27 arrive. The side Guidance devices 61; For this reason, 62 end shortly before her mantle area respectively assigned hopper folding roller 26; 27th

The funnel fold rollers 26; 27 may have the same construction as that Insertion roller 16, d. H. they can be axially in the area of the movement paths Traction means 33; 34; 124 can be pushed apart. (Fig. 33). When using a finite feed means 33; 34; 124; 87 with skewers 35 and axially on "gap" funnel fold rollers 26; 27 it would be possible to pass the paper webs or strand 140 with positive locking with the skewers 35 the area of the funnel fold rollers 26; 27, e.g. B. up to the cross cutting unit of a cross folding unit to draw. The guides for the traction devices in front of and behind the inlet in Funnel folding rollers 26; 27 are automatically movable so that at axial collapsing funnel folding rollers 26; 27 (operating position) no malfunctions of the Run of strand 140 through the guides are possible.

The application of a finite traction means 33; 34; 124 in rail-like guide 80; 88; 89; 94; 96 therefore also makes it possible in the intended movement path of the traction means 33; 34; 124 existing "Hindemisse", e.g. B. 16 to go through by a fixed or adjustable passage 235 is provided.

It is advantageous here that the rail-like guide 80; 88; 89; 94; 96 shortly before Obstacle "- for example an insertion roller 16 or a funnel folding roller 26; 27 - in the amount of Let passage 235 end and then immediately after the "obstacle" to continue again. The "obstacle" can therefore be passed.

However, it may be necessary after or after the drawing-in process has ended the "obstacle" z. B. part of the rail-like guide 80; 88; 94; 96 from the intended movement path removed or moved partially out in some other way becomes. I.e. The running path is "cleared" on a section of the rail-like Guide. This is e.g. B. very useful if the movement path of the traction means 30; 33; 124 is provided within the bale length (e.g. half the bale length). The location of the Movement paths z. B. half the length of the bale would be advantageous in that a good and safely pulling a strand 140 through the gap between the Funnel folding rollers 26; 27 is made possible. Under production conditions it would be a fixed However, guidance over a certain length is an obstacle, because the running strand 140 could touch rail-like guidance.

There are possibilities of "clearing" z. B. a complete temporary removal or Swiveling or bending over a portion of the rail-like guide and / or after the "obstacle". In this context, it would also be advantageous z. B. also the ends just before or after the "obstacle" telescopically or to attach to a quadrangle.

It is also possible to form a strand 140 from a first longitudinal folding former 18 Strand of a z. B. to perform second longitudinal folding funnel and "hang up" on it and then the two superimposed strands z. B. a cross cutter and then fed to a cross folder or other units.

As already mentioned above, one or more can be provided per funnel inlet plate 21 endless or finite traction means 33; 34; 124; 87 with needle-like skewers 35 be provided side by side. Endless as well as finite traction means 33; 34; 124; 87 along the lateral funnel flank plates 55; 65 may be provided. at Use of in guide rails 80; 89; 88 guided, finite traction means with needle-like skewers 35, these guides 80; 89; 88 at the bottom of the Funnel inlet plate 21 or on the inside of the funnel flank plates 55; 65 appropriate. The guides 80; 89; 88 are attached so that the skewers 35 through Slots in the mentioned sheets 21; 55; 65 protrude through sufficient length can. If the traction means 33; 34; 124 not by the scope of the Funnel folding rollers 26; 27 should lead or none at times in the axial direction separable funnel folding rollers 26; 27 to form a "passage" for the finite traction devices are to be used, those from the funnel flank plates 55; 65 protruding skewers 35 of the traction means (endless or finite) near the Immerse the funnel nose into the interior of the longitudinal folding funnel 18.

So it is also with a "diving" of the skewers 35 in the interior of the Longitudinal folding funnel 18 ensures that the needled paper web or webs or Strand 140 continues in the direction of the rotating funnel folding rollers 26; 27 transported become.

The device just described thus also makes it possible to use individual devices, not with one another connected webs at least into the rotating funnel folding rollers 26; 27 move in, which they then seize and transport.

Another possibility is to have several paper webs or a strand 140 over one Longitudinal folding former 18 to be drawn in at least until the former folding rollers 26; 27 grab, is seen within the scope of the invention in that the direction Hopper insertion roller 16 individually arriving paper webs to form a strand 140 connected, d. H. be "blocked" and then moved over the funnel.

Such "blocking" can be carried out as a positive connection. Form-fitting connection options of several paper webs to one another "blocked" strand 140 would be z. B. stapling using staples (Fig. 19), "tackers", Tongue stitching (Fig. 18), thread stitching (Fig. 20) and of course also pressing on the Tracks or the strand 140 on skewers 35 on movable traction means such. B. Bands or chains (Fig. 3, 4; 5; 6; 8; 9; 10; 11; 12), ropes, timing belts. But that too Sewing the paper webs together to form a "blocked" strand 140 would be possible.

Another way to connect multiple paper webs together, i.e. H. to block, could be done by a material connection. Here is z. B. especially the application of a continuous or interrupted one Contact adhesive track or spraying contact adhesive (glue) (Fig. 14) on the Back of the paper webs with subsequent pressing between two Rolling z. B. 03; 04. But also z. B. knurling under high pressure (cold welding), as shown in Fig. 15; 16 and 17, one way would be one cohesive connection or blocking.

It would also be possible to connect several paper webs by means of a non-positive connection to join together to form a strand 140, d. H. to "block". For example, this would be possible through the so-called electrostatic blocking by charging the paper webs with z. B. a high-voltage DC voltage of several thousand volts. facilities 13 and 14 are shown for this purpose.

The first method is characterized by "not needling" each other connected paper webs. The principle of the second method is a plurality of paper webs at the latest in the area of the beginning of the funnel flanks 22; 23 one Longitudinal folding funnel 18 form-fitting and / or material-fitting and / or non-positively to a "blocked" strand 140 and block it in this State in or only in the direction of the funnel folding rollers 26; 27 to pull or to slide. When feeding in paper webs connected to each other in this way (= "blocked strand 140") are the side of the funnel flank plates 25; 65 spaced lateral guides 61; 62 significant. The blocked, "spread" strand 140 reaches z. B. along the Funnel inlet plate 21 first in the area of the beginning of the funnel flanks 22; 23 (Fig. 13, Fig. 1). With its further movement in the direction of the funnel nose 24, the bumps blocked strand 140 against the inner surfaces of the side guide in the form of the lateral guide devices 61; 62nd

The lateral guide devices 61; 62 are spaced apart (e.g. 5 cm) each Funnel flank plates 55; 65 versus. At the top they go over into the left 155 or right cover plate 165. They cover a wider strip (approx. 10 to 20 cm wide) of the funnel inlet plate 21 each along the funnel flanks 22; 23 starting in the area of the insertion roller 16 and ending almost at the broad end the funnel nose 24. You have a distance - z. B. between 5 to 10 cm - from Hopper inlet plate 21 to the paper web or strand 140 unhindered in the or through the gap between the funnel folding roller 26; 27 to lead. Left and right Funnel flank plate 55; 65 are from the vicinity of the wide end of the funnel nose 24 connected so that they form a continuous funnel cover plate 274 from there. The lateral guide devices 61; 62 form together with the funnel flank plates 55; 65 and the funnel cover plate 274, the funnel guiding device 273 (FIG. 13).

Now meets the beginning of a skewer 35 of a traction device 33; 34; 124 needled Paper web or a blocked strand 140 or otherwise pushed Line 140 in the introduction area of the cover plates 155; 165, it will be between Inside of the cover plates 155; 165 and the funnel inlet plate 21 moves. The top Cover plates 155; 165 prevent the blocked strand 140 or the Able to clean up stacked paper webs. The railways or the blocked strand 140 now bump laterally as it moves forward on the inner surface of the in the direction of the funnel folding rollers 26; 27 extending Guidance devices 61; 62 and is thus around the funnel flanks 22; 23 around down in the direction of the funnel fold rollers 26; 27 deflected. By further pushing movement the paper webs or the blocked strand 140 at least get into the Catch area of the rotating funnel folding rollers 26; 27. These funnel infeed rollers 26; 27 can either be in the rebate distance, but also further be apart.

Then they will only be announced after arrival or shortly before arrival Paper webs or the blocked strand 140 between the hopper inlet rollers 26; 27 set to fold distance and then take over the pull of the paper webs or blocked strand 140. When this state is reached z. B. at Application of endless band-shaped traction means this continues until it moves there are no longer any skewers in the area of the longitudinal folding former 18. Using a finite traction means, e.g. B. a feed chain or a toothed belt with skewers, the guidance of which is provided below the funnel inlet plate 21, this is made the area in which later the paper webs or strand 140 with higher Speed will run out, so that the relevant area is "skewer free" is. Another possibility would be to spit 35 before it enters the area of the Funnel inlet plate 21 or in other areas in which the strand 140 or the Paper webs will move during production to fold, retract or the like. that they do not move into the paper webs or strands moving over them can stab more. The entire guide can also be taken from the hopper inlet plate be lifted off.

1. Die band-, ketten-, seilförmigen oder sonstig gestalteten Zugmittel 33; 34; 124 in endlicher oder endloser Form weisen Spieße 35 (Fig. 5 bis 12) auf.

2. Die einzelnen Papierbahnen 05; 06; 07; 137; 138; 127; 133; 134; 139 werden mittels Heftklammern in Längsheftung miteinander zu einem Strang 140 verbunden (Fig. 19), d. h. verblockt. Hierzu ist im Bereich des Gleitbleches 11 jedoch noch vor der Einführungswalze 16 ein oberer angetriebener Klammerschließzylinder 199 mit einem Klammerschließer 200 und ein mit ihm zusammenwirkender angetriebener unterer Heftzylinder 201 vorgesehen. An einer gestellfesten Traverse ist eine Drahtführung 202 auf den Heftzylinder 201 vorgesehen. Im Zusammenwirken von einer Klammerformscheibe 204 und der Drahtzuführung 202 wird eine Klammer gebildet, die der Heftzylinder 201 mitnimmt. Schließlich durchsticht sie die Papierbahnen und wird vom Klammerschließer 200 geschlossen. Hierdurch werden die einzelnen Papierbahnen zu einem Strang 140 verblockt. Es können mehrere Hefteinrichtungen 198; 80 über die Papierbahnbreite nebeneinander vorgesehen sein.

3. Durch sog. Zungenheften (Fig. 18). Hierbei sind im Bereich des Gleitbleches 11 eine oder mehrere Zungenhefteinrichtungen 206 vorgesehen. Diese Zungenhefteinrichtung 206 besteht im wesentlichen aus einem oberen angetriebenen Stanzstempelzylinder 208 und einem mit ihm zusammenwirkenden unteren angetriebenen Matrizenzylinder 207. Der Stanzstempelzylinder 208 weist eine Mehrzahl von Stanzstempeln 11 auf, die fest sind. Diese Stanzstempel 211 wirken mit Matrizenausnehmungen im Matrizenzylinder 207 zusammen. Der Zungenhefteinrichtung 206 werden eine Mehrzahl von Papierbahnen zugeführt. In diese aufeinanderliegenden Papierbahnen erfolgt ein gemeinsamer dreiseitiger Einschnitt mittels der Stanzstempel 211 im Zusammenwirken mit der Matrizenausnehmung 209. Die so erzeugte "Zunge" 212 in den Papierbahnen sind in Strang- bzw. Bahnlaufrichtung frei, während sie in ihrem Basisteil nach unten abgeknickt werden können. Die Zungen 212 werden so in die Matrizenausnehmung 209 hineingedrückt, daß sie diese Knickung mindestens so lange beibehalten, bis sie nachfolgend zwischen zwei beabstandete Platten, die oberhalb der Papierbahnen angeordnete, gestellfeste Führungsplatte 214 und die unterhalb der Papierbahnen angeordnete Führungsplatte 213, gelangen. Zwischen der Umbiegplatte 213 und der Führungsplatte 214 werden die eingestanzten Zungen 212 um ihr Fußende um ca. 180° dauerhaft umgebogen und verhaken somit miteinander. Dieses tritt insbesondere dann ein, wenn die Zungen 212 eine Kleeblattform aufweisen.

4. Z. B. Fadenheftung (Fig. 20) Eine Fadenhefteinrichtung, z. B. eine Fadensiegeleinrichtung 178 ist z. B. im Bereich des Gleitbleches 11 vor der Einführungswalze 16 angeordnet. Die an sich bekannte Fadensiegeleinrichtung 178 ist teilweise oberhalb und teilweise im Gleitblech 11 angeordnet. Die im Ausführungsbeispiel ist der Nadelantrieb 179 unterhalb des Gleitbleches 11 angeordnet. Der Nadelantrieb erfolgt synchron zur Geschwindigkeit der einlaufenden Papierbahnen 05; 06; 07; 137; 138; 139; 141; 142 oder auch eines einlaufenden, schon zusammengefügten Stranges 08. Eine derartige Einrichtung ist in der DE 195 23 812 A1 beschrieben. Auf einem rotierenden Träger sind eine Mehrzahl von heb- und senkbaren Nadelpaarträgern 180; 181 mit jeweils zwei Heftnadeln 182 angebracht. In das Gleitblech 11 sind in regelmäßigen Abständen in einem Bereich, in dem eine Heißversiegelung möglich ist, eine Mehrzahl von gestellfesten unteren Haltern 183 vorgesehen. Diese Halter 183 weisen jeweils Bohrungen 180; 185 auf, die in Abstand und Durchmesser auf die Heftnadeln des Nadelträgers 181 angepaßt sind. Oberhalb jeweils der Bohrungen 180; 185 der unteren gestellfesten Halter 183 ist in entsprechendem Abstand davon zwei in Papierbahnlaufrichtung hintereinander angeordnete gestellfeste Gegenhalter 184 vorgesehen. Die gestellfesten Gegenhalter 184 haben links und rechts Ausnehmungen, in welche die linke bzw. die rechte Heftnadel 182 gefahren werden können. In Papierbahnlaufrichtung beabstandet vom zweiten Gegenhalter 184 ist im entsprechenden Abstand zu dem Gleitblech 11 bzw. dem Halter 83 eine beheizbare Heißsiegeleinrichtung 187 vorgesehen. Im Laufe des Fadensiegelprozesses drücken zwei Heftnadeln 182 beide Enden eines Fadenstückes 190 durch die Papierbahnen nach oben hindurch , so daß eine fadenheißversiegelbare Fadenklammer stehend mit der Bahn zur Heißsiegeleinrichtung 187 bewegt wird. Dort läuft der vorauslaufende Schenkel der heißversiegelbaren Fadenklammer 186 gegen eine Schräge der heißen Heißsiegeleinrichtung an und der erste Schenkel wird entgegen der Bahnlaufrichtung umgebogen. Ihm folgt der nachlaufende Schenkel der Fadenklammer 186, der ebenfalls entgegen der Laufrichtung so umgebogen wird, daß er auf der obersten Papierbahn zu liegen kommt. Durch diesen Vorgang, der in beliebigen Abständen wiederholt werden kann, werden die Papierbahnen miteinander zu einem "verblockten Strang 140" verblockt.

A selection of devices is described below with which a form-fitting connection of the individual paper webs to a strand is possible, the form-fitting connection using the exemplary embodiments described below at the latest in the area of the beginning of the funnel flanks 22; 23 should take place:

1. The band, chain, rope or other designed traction means 33; 34; 124 in finite or endless form have skewers 35 (FIGS. 5 to 12).

2. The individual paper webs 05; 06; 07; 137; 138; 127; 133; 134; 139 are stapled together to form a strand 140 (FIG. 19), that is to say blocked, by means of staples. For this purpose, however, an upper driven staple closing cylinder 199 with a staple closer 200 and a driven lower stapling cylinder 201 cooperating with it are provided in front of the insertion roller 16 in the region of the sliding plate 11. A wire guide 202 is provided on the stapling cylinder 201 on a cross-member fixed to the frame. In the interaction of a clamp shape disc 204 and the wire feed 202, a clamp is formed, which the stapling cylinder 201 takes with it. Finally, it pierces the paper webs and is closed by the clamp closer 200. As a result, the individual paper webs are blocked into a strand 140. A plurality of stapling devices 198; 80 can be provided side by side over the width of the paper web.

3. Through so-called tongue stitching (Fig. 18). Here, one or more tongue stitching devices 206 are provided in the area of the sliding plate 11. This tongue-stitching device 206 essentially consists of an upper driven punch cylinder 208 and a lower driven die cylinder 207 interacting with it. The punch cylinder 208 has a plurality of punch dies 11 which are fixed. These punch stamps 211 interact with die cutouts in the die cylinder 207. A plurality of paper webs are fed to the tongue stapler 206. A common three-sided incision is made in these superimposed paper webs by means of the punch 211 in cooperation with the die recess 209. The “tongue” 212 thus produced in the paper webs is free in the direction of the strand or web, while they can be bent downward in their base part. The tongues 212 are pressed into the die recess 209 in such a way that they maintain this kink at least until they subsequently reach between two spaced plates, the guide plate 214 which is fixed to the frame and is arranged above the paper webs, and the guide plate 213 arranged below the paper webs. Between the bending plate 213 and the guide plate 214, the punched-in tongues 212 are permanently bent around their foot end by approximately 180 ° and thus hook together. This occurs in particular when the tongues 212 have a cloverleaf shape.

4. For example thread stitching (Fig. 20) a thread stitching device, for. B. a thread sealing device 178 is such. B. in the region of the sliding plate 11 in front of the insertion roller 16. The thread sealing device 178 known per se is arranged partly above and partly in the sliding plate 11. The needle drive 179 in the exemplary embodiment is arranged below the sliding plate 11. The needle drive takes place synchronously with the speed of the incoming paper webs 05; 06; 07; 137; 138; 139; 141; 142 or also an incoming, already assembled strand 08. Such a device is described in DE 195 23 812 A1. A plurality of lifting and lowering needle pair carriers 180; 181 attached with two stitching needles 182 each. A plurality of lower holders 183 fixed to the frame are provided in the sliding plate 11 at regular intervals in an area in which heat sealing is possible. These holders 183 each have bores 180; 185, which are adapted in spacing and diameter to the stitching needles of the needle carrier 181. Above each of the bores 180; 185 of the lower frame-fixed holders 183 are provided at a corresponding distance therefrom two frame-fixed counter-holders 184 arranged one behind the other in the paper web running direction. The counterholders 184 fixed to the frame have recesses on the left and right, into which the left and right stapling needles 182 can be inserted. A heatable heat sealing device 187 is provided at a corresponding distance from the slide plate 11 or the holder 83 in the paper web running direction at a distance from the second counter holder 184. In the course of the thread sealing process, two stitching needles 182 push both ends of a thread piece 190 upward through the paper webs, so that a thread heat sealable thread clamp is moved upright with the web to the heat sealing device 187. There, the leading leg of the heat-sealable thread clamp 186 runs against an incline of the hot heat-sealing device and the first leg is bent against the direction of web travel. This is followed by the trailing leg of the thread clamp 186, which is also bent against the direction of travel so that it comes to rest on the top paper web. As a result of this process, which can be repeated at arbitrary intervals, the paper webs are blocked together to form a “blocked strand 140”.

Other positive locking options:

The blocking options mentioned above are only given as an example. Of course, other methods could also be used, such as. B. a Sew the individual paper webs together for the purpose of blocking the Paper webs to a blocked strand 140. Such methods are e.g. B. at Sewing together of paper web bags became known.

1. Durch Aufbringen eines Leimauftrages (z. B. Kontaktklebers) (Fig. 14) auf die miteinander zu verblockenden Papierbahnen 05; 142; 141; 139; 06; 07; 137; 138 wird eine formschlüssige Verbindung der einzelnen Papierbahnen zu einem verblockten Strang 140 erreicht. Hierbei wird über Leimauftrageinrichtungen 188; 189; 191; 192; 193; 194; 196; 197 auf jeweils die Rückseite der Papierbahnen ein Leimauftrag, z. B. eine Leimspur oder ein Leimsprühauftrag aufgetragen. Der Leimauftrag ist so gewählt, daß beim späteren Zusammenführen der Papierbahnen unter Druck jeweils eine Papierbahn mit der nächstfolgenden zusammengeklebt wird. Die einzelnen Papierbahnen werden über Papiereinzieheinrichtungen 127; 133; 134; 139; 138; 137; 129; und 128 an den Leimauftrageinrichtungen 188; 189; 191; 192; 193; 194; 196; 197 vorbeigeführt und erhalten dort ihren Leimauftrag, bevor sie über die ihnen jeweils zugeordneten oberen Einlauf-Umlenkrollen 143 mit den dazugehörigen Papierleitwalzen und/oder die unteren Einlauf-Umlenkrollen 144 einer Vereinigungsklemmstelle, bestehend aus zwei Walzen, z. B. den Walzen 03 und 04 zugeführt werden. Die Walzen 03 und 04 üben auf die nun übereinanderliegenden Papierbahnen einen Druck aus, so daß sie ausreichend zu einem verblockten Strang 140 werden. Die Walzen 03; 04 sind als angetriebene Walzen vorgesehen und sie können zusätzlich zu ihrer Funktion des Aufeinanderpressens der Papierbahnen eine Transportfunktion des verblockten Stranges 140 in Richtung Einführungswalze 16 und weiter über den Längsfalztrichter 18 und schließlich bis in die Trichterfalzwalzen 26; 27 verwendet werden.

2. Es kann eine stoffschlüssige Verbindung der einzelnen Papierbahnen mittels Rändeln (Kaltverschweißen) angewendet werden (Fig. 15). In der Fig. 15 ist eine Einrichtung dargestellt, die sich zum stoffschlüssigen Verbinden von jeweils zwei Papierbahnen zu einem verblockten Strang 140 eignet. Hierzu ist eine angetriebene untere Amboßwalze 161 vorgesehen, die mit einer angetriebenen Hammer-Rolle 162 zusammenwirkt. Amboßwalze 161 und Hammer-Rolle 162 sind so angeordnet, daß sie in einem Querschlitz des Gleitbleches 11 miteinander in Berührung gebracht werden können. Die Amboßwalze 161 weist einen gehärteten Mantel auf und ist glatt. Die Hammer-Rolle 162 ist relativ schmal und weist eine gehärtete, gerändelte Oberfläche auf. Sie ist an einer vorderen Schlagstange 167 und einer hinteren Schlagstange 168 antreibbar gelagert. Die Schlagstangen 167; 168 sind heb- und senkbar in einer Führung 163 gelagert. Hierzu dient ein steuerbarer Arbeitszylinder 164. Mittels pneumatischen Schlagwerkes 164 (z. B. eines pneumatischen Arbeitszylinders) wird die Hammer-Rolle 162 schlagartig gegen jeweils zwei auf der Amboßwalze 161 befindliche Papierbahnen geschlagen. Es werden Kräfte von 200 Kilopond pro 50 mm Hammer-Rollenbreite erreicht. Die Rändelungen 169, wie sie im Querschnitt in Fig. 15 gezeigt sind, wirken derart auf die zwischen Amboßwalze 161 und Hammer-Rolle 162 befindlichen beiden Papierbahnen ein, daß sie dauerhaft miteinander nach Art eines Kaltverschweißens verbunden sind. Diese Methode des Kaltverschweißens von zwei Materialbahnen wird z. B. bei der Herstellung von Kaffeefiltern angewandt. In der Fig. 16 ist der Antrieb der Hammer-Rolle 162 dargestellt.

A selection of devices is described below, with which a material connection of the individual paper webs to a blocked strand 140 z. B. is possible:

1. By applying a glue application (eg contact adhesive) (FIG. 14) to the paper webs 05; 142; 141; 139; 06; 07; 137; 138 a positive connection of the individual paper webs to a blocked strand 140 is achieved. Here, glue application devices 188; 189; 191; 192; 193; 194; 196; 197 a glue application, for. B. applied a glue trail or a glue spray application. The glue application is selected so that when the paper webs are later brought together under pressure, one paper web is glued together with the next one. The individual paper webs are fed via paper feed devices 127; 133; 134; 139; 138; 137; 129; and 128 on the glue applicators 188; 189; 191; 192; 193; 194; 196; 197 passed by and receive their glue application there before they are assigned to the respective upper inlet deflection rollers 143 with the associated paper guide rollers and / or the lower inlet deflection rollers 144 of a union nip consisting of two rollers, e.g. B. the rollers 03 and 04 are supplied. The rollers 03 and 04 exert pressure on the paper webs, which are now superimposed, so that they become a blocked strand 140 sufficiently. The rollers 03; 04 are provided as driven rollers and they can, in addition to their function of pressing the paper webs together, a transport function of the blocked strand 140 in the direction of the introduction roller 16 and further over the longitudinal folding former 18 and finally into the former folding rollers 26; 27 can be used.

2. A material connection of the individual paper webs by means of knurling (cold welding) can be used (Fig. 15). FIG. 15 shows a device which is suitable for integrally connecting two paper webs to form a blocked strand 140. For this purpose, a driven lower anvil roller 161 is provided, which interacts with a driven hammer roller 162. Anvil roller 161 and hammer roller 162 are arranged so that they can be brought into contact with each other in a transverse slot of the sliding plate 11. The anvil roll 161 has a hardened jacket and is smooth. Hammer roller 162 is relatively narrow and has a hardened, knurled surface. It is drivably mounted on a front impact bar 167 and a rear impact bar 168. The bumpers 167; 168 can be raised and lowered in a guide 163. A controllable working cylinder 164 is used for this purpose. By means of pneumatic striking mechanism 164 (for example a pneumatic working cylinder), the hammer roll 162 is suddenly hit against two paper webs located on the anvil roller 161. Forces of 200 kilopond per 50 mm hammer roll width are achieved. Knurls 169, as shown in cross section in FIG. 15, act on the two paper webs located between anvil roll 161 and hammer roll 162 in such a way that they are permanently connected to one another in the manner of cold welding. This method of cold welding two webs of material is used e.g. B. applied in the manufacture of coffee filters. 16, the drive of the hammer roller 162 is shown.

1. Mittels an sich bekannter Papiereinziehvorrichtungen 127; 133; 134; 139; 128; 129; 131; 132, die über ihnen speziell zugewiesene Einlauf-Umlenkrollen 143; 144 geführt werden, werden die an sie angehängten Papierbahnen 05; 142; 141; 08; 06; 07; 137 und 138 über den Einlauf-Umlenkrollen 143; 144 zugeordnete (nicht dargestellte) Papierleitwalzen eingezogen (Fig. 14). Die Rotationsachsen der zusammengehörigen Papierleitwalzen und der Einlauf-Umlenkrollen fallen jeweils zusammen. Das Einziehen der Papierbahnen geht soweit, daß sie durch einen Einlaufspalt zwischen zwei übereinander angeordneten walzenförmigen, mit Spannung beaufschlagbaren, voneinander beabstandeten Ladeelektroden 145 und 150 hindurchgezogen werden. Die Papierbahnen werden kurz nach Passieren dieses Einlaufspaltes von den o. g., ihnen jeweils zugeordneten Papiereinziehvorrichtungen freigegeben. Die einzelnen Papierbahneinziehvorrichtungen werden in ca. Höhe der Verbindungslinie zwischen beiden Rotationszentren der Ladeelektroden 145; 150 mittels ihnen jeweils zugeordneten Umlenkrollen 146 bzw. 147 umgelenkt. Hierbei sind jeweils mehrere, d. h. der Anzahl der Papiereinziehvorrichtungen entsprechende Anzahl von oberen Auslenkrollen 146 bzw. unteren Auslauf-Umlenkrollen 147 vorgesehen. Die Ladeelektroden 145 und 150 werden jeweils synchronisiert zur Einzieh-Bahngeschwindigkeit angetrieben (Fig. 14). Sie sind elektrisch isoliert gegen die sie lagernden Seitengestelle und haben einen einstellbaren Abstand zueinander, der nicht Null sein kann. Die walzenförmige Ladeelektrode 145 mit der positiven Hochspannungs-Gleichspannung und die Ladeelektrode 150 ist z. B. mit negativer Gleichspannungs-Hochspannung beaufschlagt. Positive und negative Gleichspannungs-Hochspannung werden mittels eines Gleichspannungs-Hochspannungserzeugers 149 erzeugt. Er hat eine positive Hochspannungs-Anschlußleitung 151 für die positive Spannung und eine negative Hochspannungs-Anschlußleitung 152 für die negative Spannung. Die Anschlüsse 151; 152 sind mit den Anschlüssen der Ladeelektroden(-walze) 145 bzw. Ladeelektroden(-walze) 150 verbunden. Durch die Beaufschlagung der beiden Ladeelektroden 145 und 150 mit einer Hochspannungs-Gleichspannung werden die sich unter Pressung im Einlaufspalt zwischen diesen beiden Walzen 145; 150 befindlichen Papierbahnen elektrostatisch zu einem Strang 140 "verblockt". Der so verblockte Strang 140 wird von den Walzen 145; 150 zu - z. B. mittels angetriebener, gegen die Seitengestelle elektrisch isoliert gelagerter - angetriebenen Walzen - z. B. einer Vereinigungswalze 03 und der mit ihr zusammenwirkenden Andrückwalze 04 - befördert. Diese Walzen 03; 04 pressen den Strang 140 zwischen sich ein (die Walzen 03 und 04 können natürlich auch entsprechend an Hochspannungs-Gleichstromquelle 149 angeschlossen werden). Die Transportwalzen 03; 04, mit dem zwischen ihnen eingepreßten verblockte Strang 140 können ihn über den Falztrichter 18 in die rotierenden Trichterfalzwalzen 26; 27 schieben. Zum Transport des elektrostatisch verblockten Stranges 140 können jedoch zusätzlich auch Zugmittel 33; 34; 17; 87; 144 mit den Spießen 35 verwendet werden. Zum Aufdrücken des Stranges 140 können - wie in Fig. 2 für das endlose Zugmittel dargestellt ist - auch angetriebene, eingeschnittene Andrückrollen 59; 60 vorgesehen sein. Sie drücken den verblockten Strang 140 vor oder nach seinem elektrostatischen Verblocken in die Spieße 35 eines endlichen oder endlosen Zugmittels - z. B. einer Kette, wie sie in den Fig. 11, 8; 9 und 10 dargestellt ist - die ihn so festhalten.

A device is described below with which it is possible to achieve the non-positive connection of the individual paper webs to a blocked strand 140 (FIGS. 13, 14):

1. Using known paper feed devices 127; 133; 134; 139; 128; 129; 131; 132, the inlet deflection rollers 143; 144 are performed, the paper webs 05; 142; 141; 08; 06; 07; 137 and 138 over the inlet deflection rollers 143; 144 associated paper guide rollers (not shown) are drawn in (FIG. 14). The axes of rotation of the associated paper guide rollers and the inlet guide rollers coincide. The drawing in of the paper webs goes so far that they are pulled through an inlet gap between two superposed roller-shaped, voltage-charged, spaced-apart charging electrodes 145 and 150. Shortly after passing through this inlet gap, the paper webs are released by the above-mentioned paper feed devices assigned to them. The individual paper web retraction devices are at approximately the height of the connecting line between the two centers of rotation of the charging electrodes 145; 150 deflected by means of deflection rollers 146 and 147 respectively assigned to them. In this case, a plurality of upper deflection rollers 146 or lower outlet deflection rollers 147 are provided in each case, that is to say the number of paper drawing-in devices. The charging electrodes 145 and 150 are each driven in synchronization with the web speed (FIG. 14). They are electrically insulated from the side frames that support them and have an adjustable distance from each other that cannot be zero. The roller-shaped charging electrode 145 with the positive high-voltage direct voltage and the charging electrode 150 is, for. B. applied with negative DC voltage high voltage. Positive and negative direct voltage high voltages are generated by means of a direct voltage high voltage generator 149. It has a positive high voltage lead 151 for the positive voltage and a negative high voltage lead 152 for the negative voltage. The connections 151; 152 are connected to the connections of the charging electrodes (roller) 145 or charging electrodes (roller) 150. By applying a high-voltage direct voltage to the two charging electrodes 145 and 150, the pressure between the two rollers 145; 150 located paper webs "blocked" electrostatically to a strand 140. The strand 140 blocked in this way is removed from the rollers 145; 150 to - e.g. B. by means of driven, electrically insulated against the side frames - driven rollers - z. B. a union roller 03 and the cooperating pressure roller 04 - transported. These rollers 03; 04 press the strand 140 between them (the rollers 03 and 04 can of course also be connected accordingly to high-voltage direct current source 149). The transport rollers 03; 04, with the interlocked strand 140 pressed in between them, it can be fed via the former 18 into the rotating former fold rollers 26; 27 slide. To transport the electrostatically blocked strand 140, traction means 33; 34; 17; 87; 144 can be used with the skewers 35. For pressing the strand 140 - as shown in FIG. 2 for the endless traction means - driven, cut-in pressure rollers 59; 60 may be provided. You press the blocked strand 140 before or after its electrostatic blocking in the skewers 35 of a finite or endless traction means - e.g. B. a chain, as shown in Figs. 11, 8; 9 and 10 is shown - which hold him so.

All parts of the longitudinal folder, such as the insertion roller 16, the Funnel inlet plate 21, the funnel nose 24, the driven funnel folding rollers 26; 27 as well as the two funnel flank plates 55 and 65; and also those at a distance from the Funnel flank plates 55 and 65 arranged on the side guide devices 61 and 62 etc. are electrically isolated from the metallic side frames 117; 118 of Folders 116 stored.

As already mentioned, the longitudinal folding former 18 can also be provided with a former guiding device 273 Guidance devices 61; 62 and interacting funnel flank plates 55; 65, a funnel cover plate 274, etc. When using a electrostatic blocking they are all appropriate to the DC high voltage source 149 connected. In this case it goes without saying that the charges of the control devices 61; 62 and the funnel flank plates 55; 65 accordingly on the loads of the top or bottom paper web of the blocked Paper web strand 140 are adapted to have no counterproductive effects produce.

As described above, several paper webs can be non-positively, cohesively or positively with one another, at least temporarily, into one strand 140 can be "blocked". The minimum requirement for such "blocking" is that the superimposed paper webs are held together so that you orderly superimposition is not lifted for a sufficient period of time or it can not be far apart, so that the positive, material or frictional connection is lifted between them. It is therefore desirable that the Paper webs lying on top of each other only together in the paper web running direction can move. This common movement in the direction of the paper web can - how executed - by means of traction means running into the longitudinal folding former 18, the skewers 35 exhibit. It is Z. B. possible to arrange the traction device so that their skewers 35 from a longitudinal slot 98 along the former inlet plate 21 in the Path of movement of the paper webs or the blocked strand 140 at times protrude.

The interlocked (interlocked) in form-locking, material-locking or force-locking, paper webs or strand 140 needled onto the skewers 35 are thus in the direction on the rotating former fold rollers 26; 27 transported until they finally either be detected by these or through the gap between the two former folding rollers 26; 27 through, "needled" on the skewers 35 of the traction means of these be transported further. When the funnel folding rollers 26; 27 (i.e. with a large gap between them), the Funnel folding rollers 26; 27 do not necessarily turn. This is a first way to to move the paper webs or strand 140.

Of course, care must be taken to ensure that as soon as the drawing-in process has ended the skewers 35 the path of movement of the strand 140 over the funnel inlet plate 21 have left.

Another possibility is e.g. B. upstream of the longitudinal folding former 18, driven transport rollers 03; 04 between which the paper web or Paper webs or the blocked strand 140 - regardless of which method - is pressed. Using a positive connection, d. H. frictional paper webs or strand 140 are pushed in the direction of the longitudinal folding former 18 until they finally over the funnel inlet plate 21 between the rotating Funnel folding rollers 26; 27 arrive. They take it and then take care of you further transport of the paper web / webs or strand 140. Of the rotating Funnel folding rollers 26; 27 finally the paper web / webs or strand 140 comes in the folder 116, the z. B. the cutting rollers and finally the Cross-fold cylinder group and possibly downstream longitudinal folding devices.

But now again to the funnel guiding device 273 (FIG. 13):
Its control devices 61; 62 not only cover the funnel flank plates 55; 65, but also preferably above the hopper inlet plate 21 laterally over a certain width at a sufficient distance so as not to disturb the possibility of movement of the strand 140 or the paper webs. These overlapping parts are referred to and shown in the context of this description as the top right cover plate 165 and top left cover plate 155 (FIG. 13). The cover plates 155; 165 preferably begin above the introduction roller 16 and they are raised slightly upward, so that a kind of inlet funnel is formed for the incoming paper webs or strand 140. The paper web or webs or strand 140 reach the entrance area of the cover plates 155 by pushing or pulling; 165. Their internal spacing across the funnel sheet width is selected such that it is sufficiently larger than the maximum width of the paper webs to be processed plus the possible lateral course (plus / minus 10 cm) to the left and right of their ideal entry path. Finally, the paper webs or the strand 140 come in the area of the cover plates 155; 165 at. Since the entire paper guide device 61; 62 to the hopper inlet rollers 26; 27 tapers towards the end, the paper web / webs or the strand 140 with its side surfaces laterally abuts the guide device 61; 62 on. The fact that the upper cover plates 155; 165 prevent the paper web / webs or strand 140 from being able to deflect upwards, they are moved over the funnel flanks 22; 23 of the longitudinal folding former 18 are deflected and finally reach the space between the guide devices 61; 62 and the inner funnel flank plates 55; 65. The paper web / webs or strand 140 cross this intermediate space until finally their beginning in the inlet nip of the rotating funnel folding rollers 26; 27 arrives and is seized by them and transported on.

Below are exemplary embodiments of the arrangement of the guides for the Traction means described with skewers (Fig. 21, Fig. 22) with which it is possible to use skewers 35 needled paper webs / webs or a blocked strand 140 over the To pull or push the longitudinal folding former 18 with or without the funnel guiding device 273, until he finally in the inlet nip of the driven former folding rollers 26; 27 arrives and from the former fold rollers 26; 27 is seized and transported on. The traction means which are used for this purpose can be band-shaped, chain-shaped, rope-shaped or be designed like a toothed belt.

One possibility is e.g. B., the guides on the underside of the funnel inlet plates 21 to attach and the skewers 35 through a longitudinal slot 89 up in the Path of movement of the paper web or strand 140 on the hopper inlet plate 21 protrude (Fig. 22). The guidance is then an endless one. H. the traction device could be moved around in it.

The other option is to have an endless guide to the types just mentioned Arrange traction means above the funnel inlet plate 21 and so the traction means move their skewers 35 into the longitudinal slot from above the funnel inlet plate 89 protruding and moved in this up to near the funnel nose 24 and then moved upward (Fig. 21).

The skewers 35 of the traction means thus engage in a gap or groove in the top Funnel inlet plate 21 a (Fig. 21). For this purpose, a guide rail carrier 220, for. B. made of aluminum sheet. The guide rail carrier 220 extends z. B. along the center line of the longitudinal folding former 18 at right angles to Hopper inlet plate 21. Around the entire circumference of the narrow side of the Guide rail support 220 is a guide 80 in the form of a profile bar 89 as Guide 80 arranged for the traction device. The individual profile strips or guides 80 are arranged so that there is an all-round running track along the circumference of the guide rail carrier results. The guide 80 can be designed as shown in Fig. 11 is shown. In this case, one is particularly suitable as a traction device Roller chain 87, as shown in Figs. 8, 9, 10 and 11. However, it would also be a Timing belt suitable as a traction device. The traction means, consisting, for. B. from one Timing belts or a feed roller chain 87 can be endless or finite. at Use of a traction device of finite length is a few centimeters (e.g. 5 cm) shorter than the length of the raceway in the longitudinal groove 94 of the guide.

To drive the feed means are a plurality of synchronously running speed and position-controlled electric motors 85 are provided, via their pinions in engage the chain links or the teeth of the toothed belt. The drives are of course also to the paper web speed at which the paper webs or the blocked strand 140 via the funnel inlet plate 21 during the pulling-in process to be transported, synchronized. The skewers 35 of the traction means are aligned that they point in the direction of the funnel inlet plate 21 and from the Leadership 80; 89 protrude. The drive motors drive during the pulling-in process 85 the feed means with their skewers 35 continuously, so that skewers 35 continuously from the beginning of the longitudinal folding hopper 21 to practically the end thereof near or within the area of the funnel nose 24 move.

The guide rail carrier 220 with its guide 80; 89 and the traction device can to the funnel inlet plate 21 using suitable means, e.g. B. by means of a fixed frame Rocker arm or by means of retractable and extendable guide rods 221; 222, one of which End is attached to the guide rail support 220, on and off. The Guide rods 221; 222 are each in guide blocks 223 and 224 fixed to the frame guided. The second ends of the guide rods 221 and 222 are each one Piston rod of an adjusting means 218; 219 connected. As an adjusting means z. B. pneumatic or hydraulic 2-way valves can be provided. Of course another possibility of the drive would also be conceivable, for. B. about electromotive Drive via racks.

The contact pressure that the guide rail carrier 220 via the guide 80; 89 on that Hopper inlet plate 21 and thus on the paper webs moving on it or exerting the blocked strand 140 can be done continuously via variable pressure of the fluid can be set. Before and during the pulling process of the paper webs or The guide rail carrier 220 can extend strand 140 over the funnel inlet plate 21 and thus the guide 80; 89 at a preset distance from the funnel inlet plate 21 are brought. The guide rail support 220 is therefore on that Funnel inlet plate 21 can be moved back and forth from it. This makes it optional possible, the skewers 35 of the moving feed means continuously into the paper web or to allow the blocked strand 140 to penetrate or not and thus in the move positive engagement towards the funnel nose 24 or not. There arrived, the skewers 35 leave the paper web or the upward Strand 140 because the direction of movement of the skewers is in a different direction, such as that of the paper web or strand 140. Taking the paper web or the Stranges 140 in the returning trajectory of the moving traction device with the Skewers 35 are prevented by wipers. To serve as a scraper, z. B. the two cover plates 155; 165 near the exit point of the skewers 35 from the Paper webs or the blocked strand 140 (e.g. near the wide end of the Funnel nose 24) be brought together so closely that excessive lifting of the Paper webs or the strand 140 not perpendicular to the funnel inlet plate 21 it is possible.

A first meeting of the skewers 35 with the paper web to be drawn in or Stranges 140 can e.g. B. take place on the insertion roller 16 (Fig. 21). Here is along the path of movement of the skewers 35 through the jacket of the insertion roller 16 an annular recess 101 (FIG. 23) is provided on this.

To avoid the traction device, e.g. B. the roller chain, during the Preventing the needling down is for everyone in the description Chain or toothed belt-shaped traction means described in the area of the first The tips of the skewers 35 meet with the paper webs or the strand 140 in the guide rail (as shown in FIG. 11) on the guide 80; 89 supporting support block 120 is provided. It prevents that critical moment of puncturing the paper webs or strand 140 a excessive lateral tilting movement of the traction means, e.g. B. the roller chain 87 takes place.

At the end of the pull-in process, a corresponding electr. control the actuating means 218; 219 so acted that the guide rail support 220 in one is brought so large distance to the funnel inlet plate 21, so that certainly none Possibility more that the skewers 35 in contact with the paper webs or the strand 140 can come.

In the case of longitudinal folding former 18, in which skewers 35 penetrating the paper webs or the blocked strand from above are not desired or not possible (FIG. 22), a device 171; 225 is provided, which allows the skewers 35 to pierce from below onto the paper webs or the blocked strand 140 guided over the hopper inlet plate 21 (FIGS. 22, 24). In principle, these devices exist 171; 225 from an "endless path"94; 102 in guides 80; 88; 89, which allows a traction means 33; 34; 124 with skewers 35, e.g. B. in the form of a roller chain 87 or a toothed belt, in this guide 80; 88; 89 can be moved "all around", so that skewers 35 are continuously brought into the path of movement of the paper webs or strand 140 on the funnel inlet plate 21, which then penetrate (impale) paper webs or strand 140 and thus form-fit them up to hold on to her diving away. The traction means 33; 34; 124 with skewers 35 can be endless or finite. To drive it are a plurality of z. B. electromotive drives 85 are provided. They exist e.g. B. each from a motor 205 with a cantilevered pinion 210 or sprocket. At z. B. Using a roller chain 87 this runs on the sprocket 210 so that its teeth engage between two rollers. With finite traction means 33; 34; 87, the distance between two drives 85, which are arranged directly one after the other and act on the traction means - as seen along the running path - is shorter than the length of the traction means.
Preferably, even when using a finite traction means, e.g. B. a roller chain 87 or toothed belt, the length of the traction means be almost as long (z. B. 5 cm shorter) than the length of the closed, endless running path, ie the working path 110 (Fig. 22) or the working path 110 plus storage path 115 (FIG. 24). This ensures that despite a finite traction means, if desired, there are always skewers protruding from the hopper inlet plate 21 and the paper webs or strand 140 fed to the longitudinal folding hopper 18 can be continuously impaled on skewers 35. If the pulling-in process is now finished, care is taken to ensure that there are no more skewers 35 in the part of the working path 110 which makes up the path of movement of the paper webs or strand 140 along the funnel inlet plate 21. To achieve this, z. B. the finite traction means 33; 34; 124 with its skewers 35 wholly or partially removed from the work path 110 in which the traction means moves during the pulling-in process and fed to a storage path 115 (FIG. 22).

Paths 110; 115; 135; In the exemplary embodiment according to FIG. 22, 230 each run in fixed to the frame or inside of guides 80; 89 in the form of profile strips 88, the 11 and 12, for example.

The direction of movement of the traction means 33; 34; 124 in his leadership 80; 88; 89 takes place on its side facing the funnel inlet plate 21 in the production direction. In the In the vicinity of the funnel nose 24, the working path 110 makes a deflection in the direction Funnel affairs. A guide bend 227 near the funnel nose serves this purpose (FIG. 22; FIG. 24). From here, the return path of the work path 110 runs a distance straight ahead until it deflects over a guide bend 228 distant from the funnel nose experienced and in the forward path of the path 110 along the Funnel inlet plate 21 opens (Fig. 22; Fig. 24). In the embodiment according to 22 falls on its course from the funnel-shaped guide bend 227 to Beginning of the funnel nose distant arc 228 the return path 135 of the Working path 110 with the forward path 230 of a storage path 115 for example together.

The advancement path 230 exits near the funnel nose distant arc 228 of the storage path 115 the common path and leads over an upper arch 229 of the storage path in a straight line, the return path 235 of the Storage path 115; 135; 230. The end of the return path 235 ends in a lower bend 231. This is by means of a remote switchable lower switch 105 the common path 115; 135; 230 connected. In the upper part of the common path 115; 135; 230 is a remote switchable switch 100 arranged. Its task is to find a finite means of traction from the common path 115; 135; 230 either on the right in work path 110 or on the left in Redirect storage path 115 (FIG. 22).

The switchable upper switch 100 has the task of the traction device with its skewers 35 from the return path 135 of the working path 110; 135; 230 in the remaining part of the To store storage path 115. During this infiltration process, the Switch 100 switched so that it redirects the incoming beginning of Traction means safely prevented in the bow 228 of the working path 110 distant from the funnel nose. The storage path 115 now runs in a guide as seen from this switch 100, which extends from the switch 100 via an upper curve 229 over a straight section up to a lower arch 231. From the lower arch 231 through the electrically remote switchable Switch 105 - which either opens the way or blocks it - in the common one Path 115; 135; 230 blocks the turnout 105, the traction device cannot move out of the Storage path 115 in the common partial path 240 of the paths 115; 135; 230 arrive.

On the other hand, only when the storage path 115 is blocked by the lower switch 105, the traction device can run from the return path 135 of the leading working path 110 into the common partial path 240 of the working path 110. The length of the storage path 115 including the common partial path 240 is somewhat longer than the entire length of the traction device.
A plurality of traction mechanism drives 85 are provided along the partial path 240 - which is a leading part of the storage path 115 when the switch is appropriately set - (FIG. 22, FIG. 23).

24 shows a further device 171 for transporting superimposed ones Paper webs or a "blocked" strand 140 over the sliding surface 41 and if necessary via left and right funnel flank plate 55; 65 of the longitudinal folding former 18 is shown and is briefly described below.

It becomes the guide rail support 225 already described above with the guides 88; 89 with the endless or finite traction means 33; 34; 124 provided. He is arranged below the funnel inlet plate 21. The guide 88; 89 is endless performed; d. H. it is all-round movement of the traction means 33; 34; 124 along the Outline of the guide rail support 225 possible. The guide rail support 225 is Movable back and forth on the funnel inlet plate 21. in the Embodiment are two linear guides, each consisting of one on the Guide rail support 225 attached guide rod 221; 222, one each funnel-fixed guide block 223; 224, one adjusting means 218; 219, e.g. B. a 2-way valve, the piston rod with the associated guide rod 22 is positively connected, provided.

A plurality of traction mechanism drives 85 are provided on the guide rail support 225 Moving the traction means 33; 34; 124 provided, the drive wheels 210 from below, z. B. in positive engagement, on the traction means 33; 34; 124 act and move them.

The funnel inlet plate 21 has 171 for transporting devices superimposed paper webs or a blocked strand 140 a Longitudinal slot 98; 99th

It is slightly longer than the upper straight part 172 of the guide 88; 89 which of the Underside of the funnel inlet plate 21 is directly opposite. Its width is then z. B. somewhat wider (e.g. 3 mm) than the width of the straight part 172 of the guide 88; 89 if the guide 88; 89 each in or even through the longitudinal slot 88; 89 moved through shall be.

The longitudinal slot 98; 99 can of course be narrower (approx. 5 mm wider than the diameter the skewers 35), if only the skewers 35 in the longitudinal slot 98; 99 have to be moved through.

The actuating means 218 can be actuated accordingly Guide rail support 226 along its entire length from a longitudinal folding hopper Rest position in a working position close to the longitudinal fold funnel and held there and vice versa.

In the rest position, the guide rail support 225 is so far from the bottom of the Funnel inlet plate 21 removes the extreme ends of the tips of the upright standing skewers 35 at least in the interior of the longitudinal slots 98; 99 ends. As a result, the sliding surface 41 or other surfaces on which the device 171 is provided, free from the sharp tips of the skewers 35. The paper webs respectively blocked strand 140 can therefore not be damaged, although the traction means 33; 34; 124 with upright spits 35 in the longitudinal slot 98; 99 can be moved.

If the guide rail support 225 is in its "working position", the spikes 35 protrude finally in the greatest "working length" from the longitudinal slot 98; 99 out and can be stacked paper webs or a blocked strand 140 impale.

The impaling is facilitated by a pressure device 173 with driven, lifting and lowering pressure rollers 59; 60 with all-round groove 63 (FIG. 7; FIG. 23). They are so far moved in the working position against the sliding plate 11 or the sliding surface 41 of the funnel inlet plate 21 that they do not just touch the plates 11 or 21, z. B. Keep 1 mm distance.
The pressing device 173 should be provided at a short distance from the exit location 174, from which the skewers 35 on their way out of the longitudinal slot 98; 99 stick out. The pressure rollers 59; 60 push the incoming paper webs or strand 140 into the skewers 35 until they have overcome the part 68 on them, which prevents the "impaled" paper webs or strand 140 from lifting off slightly from the skewers 35.

In this form fit, the paper webs or strand 140 are pulled by the traction means 33; 34; 124 towards funnel folding roller 26; 27 moves.

This just described device 171 of FIG. 24 can also be used with traction means 33; 34; 124 are operated that have no skewers 35.
The traction means 33; 34; In this case 124 preferably has a blunt or structured transport surface 176 facing the paper webs or strand 140. It can be finite or endless and can be made from e.g. B. consist of a toothed belt, belt or V-belt.
The transport surface 176 should have the highest possible coefficient of friction against paper. To drive the traction means 33; 34; 124, at least one, but preferably a plurality, of traction mechanism drives 85 are provided on the guide rail support 225 (FIG. 23, lower part), the drive wheels 37; 38; 210 each simultaneously form the counter bearing for those against the traction means 33; 34; 124 pressing device (s) 173 arranged and disengageable (FIG. 2; FIG. 23, upper part).

In its working position, the guide rail support 225 is so far in the direction of the sheet 21 or 11 has been moved that the spitless traction means 33; 34; 124 - perpendicular to his Seen longitudinal axis 177 - upwards from the longitudinal slot 98; 99 stands out.

The device 171 can be adjusted so that the traction means 33; 34; 124 with one Fraction or all of its thickness from the longitudinal slot 98; 99 protrudes upwards (Fig. 23, lower part).

From above - at least in the area of the highest point of the drive wheels 37; 38; 210 - presses one, e.g. B. rotating pressure device 173 with presettable force against the upper, structured surface 176 of the traction means 33; 34; 124. As pressure device 173 are particularly rotatable, z. B. motorized pressure rollers 59; 60, with or without all-round recess 63.

If the paper webs or a strand 140 now reach between pressure element 59; 60 and moving traction means 33; 34; 124 (Fig. 23), so / is by means of frictional engagement (Frictional engagement) the paper webs or strand 140 are clamped between them and, if necessary, with the interposition of one or more additional pressure devices 173 until at least in the "gripping area" of the funnel folding rollers 26; 27 pushed.

In the described embodiments according to FIGS. 21 and 24, the traction means 33; 34; 124 with erected spikes 35 attached to the guide rail support 225, the in z. B. straight guides 223; 224 are arranged to be reciprocable. It would be however, different types of drives are possible to the / the guide rail support 225 To move the funnel inlet plate 21 or the sliding plate 11 back and forth. So would be B. the storage of the guide rail support 225 on the funnel or frame by means of stored swingarms possible.

a) die am Zugmittel 33; 34; 124 direkt oder indirekt befestigten Spieße 35 sind heb- und senkbar angeordnet (Fig. 25);

b) die am Zugmittel 33; 34; 124 direkt oder indirekt befestigten Spieße 35 sind selbst in Bezug auf das Zugmittel bewegbar oder beweglich angeordnet. Die Spieße 35 können in Bezug auf die Zugmittelbewegungsrichtung bzw. die Zugmittellängsachse 177 des sie tragenden Zugmittels senkrecht oder schräg nach oben und nach unten, aber auch nach rechts oder links (seitlich) bewegbar, z. B. auch umbiegbar, angeordnet sein. Es ist insbesondere aber auch möglich, die Spieße 35 oder Teile der Spieße 35 am Zugmittel 33; 34; 124 in und/oder entgegen Zugmittelbewegungsrichtung schwenkund/oder kippbar oder umbiegbar anzuordnen.

An arrangement is also applicable in which the guide rail supports 225 are arranged so that they cannot move. It is necessary here that the ends of the skewers 35 cannot be predetermined in the path of movement of the paper webs lying on top of one another or of the blocked strand 140. For this purpose, e.g. B. proposed the following solutions:

a) on the traction means 33; 34; 124 directly or indirectly attached skewers 35 can be raised and lowered (Fig. 25);

b) the on the traction means 33; 34; 124 directly or indirectly attached skewers 35 are movable or moveable even with respect to the traction means. The skewers 35 can be moved vertically or obliquely upwards and downwards, but also to the right or left (laterally), e.g. B. also bendable. In particular, however, it is also possible for the skewers 35 or parts of the skewers 35 on the traction means 33; 34; 124 to be pivoted and / or tilted or bent in and / or counter to the direction of movement of the traction device.

The measures described in a) and b) ensure that the ends the skewers 35 can be preselected either in the path of the paper webs or the strand Protrude 140 or not.

An example of a device for lifting and lowering 233 on the traction means 33; 34; 124 attached skewers 35 is shown in FIG. 25. The finite or endless traction means 33; 34; In this example, 124 is e.g. B. executed as a roller chain 87. It is Z. B. in Fig. 8, 9, 10, 11 and 12 are shown and described. In contrast to the one described there, not movable arrangement of the skewers 35 on the traction means 33; 34; However, they are at 124 this embodiment (FIG. 25) - preferably perpendicular to the longitudinal axis 177 - arranged to be raised and lowered. Here, the smooth shaft 234 in bores 236; 237 of a U-shaped holder 238 slidably mounted. At the lower end of shaft 234 is one, e.g. B. U-shaped, bearing 239 for a rotatable roller 241 against rotation attached. Between the lower leg of the holder 238 and the bearing 239 is on the Shaft 234 a spring 242, e.g. B. compression spring, clamped. It has the task of Drive 241 of the skewers 35, e.g. B. the roller 241, against a control surface 243 a To press curve carrier 244 if there is no positive guidance by positive locking of the Rollers 241 is provided.

In the exemplary embodiment according to FIG. 25, the curve carrier consists of one around it Spindle 244 rotatable in the longitudinal axis. Its cross section has the shape of a circular section (Segment). Both the area along the chord and length of the spindle 244 is stretched (area over the tendon 246), as is the area from the bow of the The circular section and length of the spindle 244 (area above the arc 247) serve as Control surfaces. If the control roller 241 runs on a low control radius, i. H. on the "area over the chord "246, the skewers 35 are each over the force of their compression spring 242 withdrawn so far that none of the skewers 35 any longer from the longitudinal slot 98 protrudes (Fig. 25).

If the spindle 244 is turned clockwise or counterclockwise, the control rollers run 241 on the "area above the arch" 247, ie on a large steering radius. This has to Consequence that skewers 35 protrude from the longitudinal slot 98 in full working length.

Instead of the spindles 244 z. B. lifting / lowering rails with control surfaces 243 may be provided.

As already mentioned briefly under b) above, there are other ways to tip the At times, do not skew the path of movement of the paper webs or the strand 140 along a sheet 11; 21; 55; 65 to get.

One possibility for this is shown in FIGS. 26 to 32.

Here, the skewers 35 in the longitudinal axis direction 177 of the traction means 33; 34; 124; 87 arranged tiltable (swiveling).

As traction means 33; 34; 124 is e.g. B. uses a roller chain 87. The one on the fork 73 rotationally fixed support bracket 86 is on its in the direction of movement of the traction means, z. B. a roller chain 87, side face a hinge 254 with a Mobility f = 1 provided. There is a two-armed pivot lever 248 on this limited pivoting. A first (right) 249 and a second (left) lever arm 251 of the pivot lever 248 each end in a downward S-shaped first 252 and second locking spring 253. In the swivel range of the swivel lever 248 is on a tab 90 of the fork 73 a cantilevered locking pin 256 intended. It has the task of pivoting the end position in the direction of transport of the skewers 35 and at the same time as a hinge pin for the right (first) Serve locking spring 252 (Fig. 28, Fig. 29).

The left (second) locking spring 253 only comes when the skewers 35 are fully erected to the effect. In this case, the left (second) lever arm 251 lies on the support bracket 86 and at the same time the left (second) locking spring 253 engages against the Direction of movement of the traction device (roller chain 87) side surface of the Support angle 86. As a result, the skewers 35, supported on the support angle 86, in held upright position and can not against the retraction direction 255 of the Tip the traction mechanism (roller chain 87) in the working path 110 (Fig. 26, Fig. 27).

The movement of the traction means 33; 34; 124 - e.g. B. a roller chain 87 - with the upright standing skewers 35 in the pull-in direction (forward direction) 255 along the working path 110 is shown in FIGS. 26 and 27. The skewers 35 protrude during the pulling-in process through the longitudinal slot 98 of the sheet 11 and 21 into the movement path of the paper webs or strand 140 to be transported. In the two figures there is a Part of the guide along the work path 110 (see Fig. 30, 22, 21) shown.

In Fig. 28; 29 are the traction means moving in the drawing-in direction 255 (forward direction) 87 with skewers 35 "tipped over" in the pulling-in direction 255. Here they are pivoted at least so far that their pointed ends within the longitudinal slot 98; 99 of sheet 11; 21 ends. In this position they are pulled by the traction device (roller chain 87) moved in the work path 110.

31; 32 is an embodiment of a device for pivoting and / or raising 257 of skewers 35. Their effect is based on the fact that optionally exerted a force in or against the direction of movement of the skewers 35 can be. For this purpose, e.g. B. bristles and / or fins 258 on the jacket in the scope a disk 259 attached. The disk 259 is clockwise and counterclockwise - by means of z. B. an electric motor 261 - driven and stored in an adjusting device 264. The adjusting device 264 serves to place the bristles or lamella 258 in the running path 135, e.g. B. or the return path of the traction device, here the roller chain 87 remove again. The adjusting device 264 can e.g. B. as funnel-proof Eccentric adjustment be carried out, the motor 261 on the eccentric and the Disk 259 is rotatably mounted in a bore of the eccentric. 31, 32 schematically illustrated embodiment are motor 261 and disk 259 in one Bearing mounted in the free end 266 of a rocker 263. A second end 267 of the Swing arm 263 is rotatably mounted on a pin 268 fixed to the frame or funnel.

Between both ends 266, 267 of the rocker 263, one engages on the funnel or Frame supporting actuating unit 269, which has the task of closing the rocker 263 in this way pivot that the bristles or lamellae 258 optionally in and out of Running path, e.g. B. the return path 135 of the returning skewers 35 are moved can. Actuator 269 is e.g. B. designed as a 2-way valve.

Do the directions of movement 271 of the traction means 87 - and thus those of the skewers 35 - and the direction of rotation 272 of the disk 259 with the bristles or fins 258 in the same direction (as shown in Fig. 31), the skewers 35 are overturned.

The z. B. vertically hanging skewers 35 to overturn them by the traction means 87 pulled into the effective area of the rotating bristles or lamellae 258 and arrive between them. Since the peripheral speed of the bristles or lamellae 258 is greater than the speed of movement of the skewers 35, the skewers 35 are opposed to the Direction of rotation 272 of the bristles or lamellae 258 is pivoted, i. H. the skewers 35 tip over. This pivoting process of the skewers 35 is stopped when the first locking spring 252 with the first lever arm 249 on the locking pin 256 strikes or has embraced him and thus clings to him.

In this upturned position of the skewers 35 on the traction device, they will continue along the Return path 135 and the work path 110 transported.

Are in work path 110, d. H. along the movement path of the to be fed Paper webs or the strand 140, only overturned skewers 35 are present the feeder stopped. To determine the position of the skewers 35 (upright or overturned) is z. B. at the beginning and end of the work path 110, one sensor each provided that their signals a corresponding electrical. Feed evaluation device.

Shall the overturned skewers 35 on their way to work path 110 again be erected, so that z. B. done in the manner shown in Fig. 32 is.

The traction device, here the roller chain 87, moves with the folded or overturned Skewers 35 along z. B. the return path 135.

The device for pivoting and / or raising 257 the skewers 35 is like this employed that the bristles or lamellae 258 in the return path 135 of the overturned Stick the skewers 35 in. The rotation device of the bristles or lamellae 258 is opposite to the direction of movement of the traction means 33; 34; 124; 87. The The peripheral speed of the bristles or lamellae 258 can be greater, equal or less - also be zero - as the speed of movement of the traction device with the Skewers 35 to be set up in the return path 135.

The device 257 is set up in such a way that the enveloping circle of the bristles / lamellae 258 is several Millimeters (e.g. 5mm) in the path of movement of the outer ends of the pivoted Skewers 35 immersed (Fig. 32).

Due to the resistance that the bristles / fins 258 to the tips of the skewers 35 oppose, a force is exerted on the moving skewers 35, so is dimensioned to pivot the skewers 35 about the pivot joint 254 and into the desired, set up z. B. Bring perpendicular position. I.e. the skewers 35, which the Bristles / fins 258 have passed are in the "working position" (Fig. 32, left part).

If the skewers 35 are no longer toppled over or are no longer erected, the Device 257 turned off so that no bristles / fins 258 in the Penetrate the path of movement 135 of the tips of the skewers 35.

The bristles / lamellae 258 can be coated with an abrasive, e.g. B. corundum. This allows the tips of the skewers 35 to "pass" the bristles / lamellae 258 can be easily sharpened. The device 257 can thus additionally as Sharpening device for the tips of the skewers 35 are used.

To improve the sliding and to facilitate the guiding of the paper webs or the blocked strand 140 along the inner surfaces of the guide plates 61; 62; 155; 165; 274 of the funnel guiding device 273, the inner surfaces can be air-blown. For this purpose, all or part of the guide plates 61; 62; 155; 165; 274 with one Plurality of the space between opposite guide plates, e.g. B. 62-65, 61-55 (FIG. 21) and / or funnel running plate 21 directed blowing nozzles, e.g. B. Flat nozzles should be provided. This also applies to the space between the Guide plates and sliding plate 11. Your blowing direction is z. B. in the feed direction of Paper web or strand 140 aligned. The blow nozzles have blow holes and on them adjacent, obliquely in the direction of the inner surface of the guide plates 61; 62; 155; 165; 274 have lowered guide surfaces delimited by an arcuate transition. The guiding surfaces have radial, an opening angle (beta) between 20 ° to 50 ° enclosing edges. The distance between the blowing nozzles is by a division t established. The ratio of this division t to the width BL of the blast air jet in one Distance from the blow opening is one to two, i.e. H. t / BL = 1 to 2.

Blow nozzles are preferably used, which according to the "hydrodynamic Paradox "work.

Another method and device for improving sliding and Facilitation of guiding the paper webs or the blocked strand 140 along the inner surfaces of the guide plates 61; 62; 155; 165; 274 of the hopper paper guide 273 may be used instead of or in addition to that described above Be blown with compressed air. It consists of selected individual or all guide plates 61; 62; 155; 165; 274 with mechanical vibrations act so that they vibrate. For this purpose they are a complete funnel-paper guide 273 or as one or more cohesively or form-fittingly connected guide plates by means of vibration elements 276 directly or indirectly, e.g. B. via insulators 148 on the side frame 117; 118 attached. The Vibration elements 276 can e.g. B. as elastic fasteners or Connecting joints can be designed. Rubber spring elements are particularly suitable, which are designed as so-called rubber-metal elements. To generate the vibrations the selected guide plates or the entire funnel guiding device 273 is a Vibrator 277 or knocker 277 provided, which are each on the side frame 118 or Support 117 and the selected guide plates or the whole Funnel guide device 273 are coupled to transmit vibrations.

Low-frequency or higher-frequency vibrators (vibration frequency, e.g. from 375 to 47000 vibrations per minute). Under "low frequency" are up to 1500 vibrations / minute and under "higher frequency" vibrations are larger 3000 vibrations / minute to understand. The vibrators 277 can adjust the Set the unbalance to the desired unbalance or vibration range, or the Frequency can be constant, but also changeable.

Suitable vibrators are: external electric vibrators, compressed air turbovibrators, Pneumatic ball vibrators, compressed air roller vibrators, compressed air turbine vibrators, Imbalance vibrators with pneumatic and hydraulic Motor drive, compressed air piston vibrators and compressed air interval knocker.

The vibrator 277 is preferably only switched on during the pulling-in process.

LIST OF REFERENCE NUMBERS

01

side frame

02

side frame

03

association roller

04

pressure roller

05

Paper web, third

06

Paper web, second

07

Paper web, first

08

strand

09

outlet pocket

10

enema

11

sliding

12

paper web

13

Electric motor (26)

14

Electric motor (27)

15

drive motor

16

introduction roller

17

recovery path

18

longitudinal former

19

recovery path

20

Webs detection line

21

Funnel inlet plate (18)

22

Funnel flank (21)

23

Funnel flank (21)

24

Funnel nose (18)

25

Center line, vertical

26

Funnel folding roller (18)

27

Funnel folding roller (18)

28

Funnel folding roller block (26; 27)

29

Funnel folding roller block (26; 27)

30

Deflection roller (23; 34)

31

Folder frame, first

32

Folder frame, second

33

Traction means, left (18)

34

Right-hand traction device (18)

35

Skewer, needle-like

36

Obertrum (33; 34)

37

Deflection or pull wheel (33)

38

Deflection or pull wheel (34)

39

Driving pin (33; 34)

40

path

41

Sliding surface (21)

42

Groove (41)

43

Guide rollers (33)

44

Guide rollers (34)

45

Side edge, left

46

Lower run (33; 34)

47

Guide and / or drive roller (33)

48

Guide and / or drive roller (34)

49

Guide and / or drive roller (33)

50

Guide and / or drive roller (34)

51

Side edge, right

52

Hole (33; 34)

53

Foot (35)

54

Drive motor (37)

55

Funnel flank plate, left

56

Drive motor (38)

57

Sensor (33)

58

Sensor (34)

59

Pressure roller (37; 38)

60

Pressure roller (35)

61

Guide device, left (33)

62

Right guidance device (34)

63

Puncture (59)

64

working cylinder

65

Funnel flank plate, right

66

Free end (35)

67

Lever linkage (59)

68

Wiping Difficulty / Wiping Prevention Device

69

scraper

70

castors

71

bolt

72

Fork, narrow (78)

73

Fork, wide (78)

74

Base piece, left

75

Inner guide surface (61)

76

Base piece, narrow (72)

77

Base piece, wide (73)

78

Chain link, first

79

swivel

80

Guide, fixed to the longitudinal fold

81

Tabs, narrow

82

Tabs, wide

83

Chain link, second

84

Chain link, third

85

traction mechanism

86

Support bracket (35)

87

Feeder roller chain

88

Guide, fixed to the frame / funnel-proof

89

Molding

90

Right tab (73)

91

Body (89)

92

Thigh, lower

93

Thigh, upper

94

Longitudinal groove, lower

95

Left tab (73)

96

Longitudinal groove, upper

97

mounting surface

98

Longitudinal slot (21)

99

Longitudinal slot (11)

100

Soft, first, reversible

101

Puncture (16)

102

Tread (89; 16)

103

Roller guide surface, left (89; 16)

104

Roller guide surface, right (89; 16)

105

Soft, second, reversible

106

Pin part (16)

107

Sleeve part (16)

108

Splined shaft / journal (106)

109

drilling

110

Working path for traction devices (33; 34; 87; 124)

111

Web or strand feed device

112

Web or strand feed device

113

Side frame, left (111)

114

Right side frame (111)

115

storage path

116

folding

117

Side frame, left (112)

118

Right side frame (112)

119

Sliding plate (1112)

120

support block

121

Walking path, medium

122

Walking path, left, outer

123

Walking path, right, outer

124

Traction means, medium

125

Pressure plate, left (59; 60)

126

Sliding surface (11)

127

Paper web feeder, first

128

Paper web feeder, second

129

Paper web feeder, third

130

Pressure disc, right (59; 60)

131

Paper web feeding device ,, fourth

132

Paper web feeder, fifth

133

Paper web feeder, sixth

134

Paper web feeder, seventh

135

Return path for traction devices (33; 34; 87; 124)

136

Paper web feeder, eighth

137

Paper web, fourth

138

Paper web, fifth

139

Paper web, sixth

140

Strand, blocked

141

Paper web, seventh

142

Paper web, eighth

143

Inlet pulleys, upper

144

Inlet pulleys, lower

145

Charging electrode, cylindrical, positive

146

Outlet deflection rollers, upper

147

Outlet pulleys, lower

148

Insulators, electr.

149

High voltage generator

150

Charging electrode, cylindrical, negative

151

High voltage connection line, positive

152

High voltage connection line, negative

153

Spiked roller, driven

154

spur

155

Cover plate, upper, left

156

pivoting lever

157

Axle, fixed to the frame

158

working cylinder

159

Stop, fixed to the frame

160

Rändelungseinrichtung

161

Anvil roller, driven

162

Hammer roller, driven

163

Leadership (167; 168)

164

Striking mechanism, pneumatic

165

Cover plate, upper, right

166

Drive motor (162)

167

Bumper, front

168

Rear bumper

169

knurling

170

Guide surface (62)

171

Device for transporting paper webs or a blocked strand

172

Part, straight (88; 89)

173

pressing device

174

exit location

175

-

176

Transport area (33; 34; 124)

177

Longitudinal axis (33; 84; 124)

178

Thread-sealing device

179

needle drive

180

drilling

181

needle carrier

182

basting pin

183

Holder, lower, fixed to the frame

184

Bracket, fixed to the frame

185

drilling

186

thread clips

187

Heat sealer

188

Glue application device, first

189

Glue application device, second

190

-

191

Glue application device, third

192

Glue application device, fourth

193

Glue application device, fifth

194

Glue application device, sixth

195

-

196

Glue application device, seventh

197

Glue application device, eighth

198

stapler

199

Clip lock cylinder

200

staple closer

201

stitching cylinder

202

wire feed

203

guide tongue

204

Clip shaping disk

205

Traction drive motor (85; 210)

206

Tongue stapler

207

die cylinder

208

Punch cylinder

209

Matrizenausnehmung

210

Sprocket, sprocket (85)

211

punch

212

Tongue, punched out

213

Umbieg plate

214

guide plate

215

Motor (59)

216

Leading edge (213)

217

Traction device guide and drive device

218

Actuator (2-way valve), first

219

Actuator (2-way valve), second

220

Guide rail support (above the funnel 18)

221

Guide rods, first

222

Guide rods, second

223

Guide blocks, first

224

Guide blocks, second

225

Guide rail support (below the funnel 18)

226

deflecting

227

Arch, close to the funnel

228

Bow, funnel nose away

229

Arch, upper, storage path

230

Forward motion path for traction devices (33; 34; 87)

231

Arch, lower, storage path

232

Roller, axially separable

233

Device for lifting and lowering skewers

234

Smooth shaft (35)

235

Passage (16; 26; 232)

236

drilling

237

drilling

238

U-shaped holder

239

Storage, U-shaped (241)

240

Width, fixed (235)

241

Roller, steering roller / drive for skewers (35)

242

Spring, compression spring

243

Control surface (244)

244

spindle

245

Bale (16; 26; 27)

246

"Area over the tendon" (244)

247

"Area over the arch" (244)

248

Swing lever, two-armed

249

Lever arm, first

250

Axis of rotation (16; 26; 27)

251

Lever arm, second

252

Locking spring, first

253

Locking spring, second

254

Swivel / mobility f = 1

255

Feed direction / feed direction

256

locking pin

257

Device for pivoting and / or erecting

258

Bristles, fins (259)

259

disc

260

Adjustable width (235)

261

engine

262

End, free

263

wing

264

positioning device

265

-

266

Free end (263)

267

End, second (263)

268

Spigot, fixed to the frame / funnel-proof

269

actuator

270

-

271

Direction of movement (87)

272

Direction of rotation (259; 258)

273

Funnel paper guide

274

Funnel cover plate

275

-

276

Shock mounts

277

Vibrator; knocker

278

-

279

-

280

-

a

Distance (39; 39)

b

distance

c

distance

B

Production direction (06; 11; 12)

⊕

High voltage connection, positive

⊖

High voltage connection, negative

Claims (3)

1. Arrangement for longitudinal folding (18) having at least two funnel flanking lips (22, 23) and a paper diverting arrangement (165; 155; 61; 62) enclosing them in the form of a shell, characterised in that, to improve the sliding movement of webs of paper, the paper diverting arrangement (165; 155; 61; 62) as a whole, or parts thereof, are connected to one or more vibrators or tappers (277).
2. Arrangement for longitudinal folding (18) according to claim 1, characterised in that the paper diverting arrangement (165; 155; 61; 62) or parts thereof are fastened to a machine frame (118) via anti-vibration elements (276).
3. Arrangement for longitudinal folding (18) according to claim 1, characterised in that initial electric vibrators, or compressed-air turbo-vibrators, or compressed-air ball vibrators, or compressed-air roller vibrators, or compressed-air turbine vibrators, or imbalance vibrators driven by pneumatic or hydraulic or electric motors, or compressed-air piston vibrators, or compressed-air set-interval tappers are provided.

Images