EP0533042B1 - Device for threading webs in rotary web printing machines - Google Patents

Device for threading webs in rotary web printing machines Download PDF

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Publication number
EP0533042B1
EP0533042B1 EP92115395A EP92115395A EP0533042B1 EP 0533042 B1 EP0533042 B1 EP 0533042B1 EP 92115395 A EP92115395 A EP 92115395A EP 92115395 A EP92115395 A EP 92115395A EP 0533042 B1 EP0533042 B1 EP 0533042B1
Authority
EP
European Patent Office
Prior art keywords
roller
threading
web
belt
guided
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92115395A
Other languages
German (de)
French (fr)
Other versions
EP0533042A1 (en
Inventor
Hans Mamberer
Johann Winterholler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0533042A1 publication Critical patent/EP0533042A1/en
Application granted granted Critical
Publication of EP0533042B1 publication Critical patent/EP0533042B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/03—Threading webs into printing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/32—Arrangements for turning or reversing webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/52—Auxiliary process performed during handling process for starting
    • B65H2301/522—Threading web into machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for drawing webs in web-fed rotary printing presses with an endless belt system guided on the feed path, to which the web to be drawn is fastened.
  • the device is expensive due to the need for two bands.
  • the construction of the two belts also requires cost-intensive design effort. This has to be done outside the web area of the web to be turned. In this area, the turning bars carry expensive wheels and brackets.
  • a second one is required, which cuts the partial web to be drawn in wider for the duration of the drawing-in process, so that it reaches the drawing-in belts guided outside the web area.
  • the invention has for its object to provide a device for pulling webs in web-fed rotary printing presses with an endless belt system guided on the feed path, to which the web to be drawn in is fastened, which can be produced at low cost.
  • the object is achieved in that a pull-in tape in the form of a hook tape is guided on the pull-in path and the beginning of the web carries a loop tape or vice versa.
  • the device works with only one endless feed belt and does not require a second longitudinal cutting device. The beginning of the web is solidified by the loop tape.
  • Fig. 1 shows the area of a printing press as it can be found between printing units, not shown, and folder, not shown.
  • a printed web 1 is cut longitudinally here and the partial webs 2; 3 are fed one on top of the other via the funnel salts 4 to the folder.
  • a longitudinal cutting device 5 contains a cutting roller 6, which carries a cutting ring 8 in a cutting groove 7. The latter works together with a cutting knife 9 (Fig. 3).
  • a roller 11 is rotatably mounted with respect to the roller jacket 10 and receives the feed belt 13 in a groove 12.
  • the feed belt 13 is located slightly lower than the roll surface, so that the feed belt 13, which is stationary after the pulling-in process, does not rub on the web surface.
  • the feed belt 13 is guided over paper guide rollers 14, the roller jacket 15 of which is rotatable on bushings 16; 17 supports, which in turn are slidably arranged on the guide roller axis 18 (Fig. 4).
  • the bushing 17 carries a roller 19 which receives the feed belt 13.
  • a working cylinder 20 mounted in the frame is articulated on the bushing 17.
  • a motor z. B. a magnet can also be used.
  • Each spiral bushing 23; 24 has a helical groove 25 in which the pull-in belt 13 is guided (FIG. 5). Eliminating the spiral bushings 23; 24, the spiral groove can also directly in the jacket of the turning bars 21; 22 incorporated.
  • the feed belt 13 leads further to a deflection roller 26 and from there via turning bars 27; 28 and a belt roller 29 back to the cutting roller 6.
  • a sensor 30 and a spray nozzle 31 are arranged, and on the deflection roller 26 there is a scraper 32.
  • the deflection roller 26 is pivotable and is in drive connection with a motor 33 .
  • the turning bars 27; 28 have spiral grooves.
  • the web 1 to be drawn in is provided with a tip 34 which is glued with a loop tape 35.
  • the web 1 is drawn in by the printing press with a drawing device, for example a chain 36 with a driver 37.
  • a drawing device for example a chain 36 with a driver 37.
  • the web 1 is cut lengthways.
  • the resulting part web 3 is drawn in further by the chain 36, the loop band 35 of the part web 2 enters into an adhesive connection with the hooks of the drawing band 13. This happens automatically when passing through the cutting roller 6 as a result of the wrapping of the tensile force components on the cutting roller 6 and thus on the this guided pull-in belt 13 directed compressive force.
  • the pull-in belt 13 is driven by the motor 33 at the pull-in speeds during the pulling-in process.
  • the partial web 2 is first pulled over the guide rollers 14.
  • the working cylinders 20 are reversed, thereby axially displacing the roll shells of the paper guide rolls 14, as a result of which the rolls 19 together with the feed belt 13 are brought out of the web guide area. Thanks to the displaceability, as far as is functionally possible, there is no need to constructively lower the drawing-in belt 13 in the rollers 19, and the partial web 2 has an uninterrupted support on the roller jackets 15 over its entire width when the printing machine is in operation.
  • FIG. 1 A further variant of the guidance of the feed belt 13 in the area of a longitudinal cutting device 38 is shown in FIG.
  • a guide tongue 42 which projects into grooves in the roller 39.
  • the tape roll 40 is placed against the pressure roller 41.
  • the web 1 guided over the cutting roller 39 is cut lengthwise into the partial webs 2 and 3 by means of a cutting knife 43.
  • the partial web 3 is pulled in further (in an analogous manner as in FIG. 2), the partial web 2 with the participation of the guide tongue 42 between the tape roll 40 and the pressure roller 41.
  • the pull-in tape 13 designed as a hook tape enters into an adhesive connection with the loop tape glued under the tip of the partial web 2.
  • the further retraction takes place as in the exemplary embodiment described above.
  • the tape roll 40 is pivoted back into the position shown in dashed lines.
  • the feed belt 13 is therefore not in the web area of the slitter during printing.
  • the beginning of the web was provided with a loop band and the pull-in band was designed as a hook band.
  • the pull-in tape can also be guided around other turning bar arrangements using the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Rotary Presses (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Einziehen von Bahnen in Rollenrotationsdruckmaschinen mit einem endlosen, auf dem Einziehweg geführten Bändersystem, an dem die einzuziehende Bahn befestigt ist.The invention relates to a device for drawing webs in web-fed rotary printing presses with an endless belt system guided on the feed path, to which the web to be drawn is fastened.

Eine derartige Einziehvorrichtung zeigt die US-PS 4,063,505. Das endlose Bändersystem beteht aus einem Ober- und einem Unterband, und zwischen beiden wird die einzuziehende Bahn geklemmt. Hierzu werden Ober- und Unterband formschlüssig oder magnetisch zusammengehalten. Mit der Vorrichtung kann eine nach dem Längsschneiden entstehende Teilbahn über Wendestangen eingezogen werden.Such a pull-in device is shown in US Pat. No. 4,063,505. The endless belt system consists of an upper and a lower belt, and the web to be drawn is clamped between the two. For this purpose, the upper and lower straps are held together positively or magnetically. With the device, a partial web that arises after the longitudinal cutting can be drawn in via turning bars.

Die Vorrichtung ist durch das Erfordernis zweier Bänder teuer. Kostenerhöhenden konstruktiven Aufwand erfordert auch die Führung der beiden Bänder. Diese hat außerhalb des Bahnbereiches der zu wendenden Bahn zu erfolgen. In diesem Bereich tragen die Wendestangen teure Röllchen samt Halterungen. Weiterhin macht sich zusätzlich zur Längsschneidevorrichtung noch eine zweite erforderlich, die die einzuziehende Teilbahn für die Dauer des Einziehvorganges breiter schneidet, damit diese an die außerhalb des Bahnbereiches geführten Einziehbänder heranreicht.The device is expensive due to the need for two bands. The construction of the two belts also requires cost-intensive design effort. This has to be done outside the web area of the web to be turned. In this area, the turning bars carry expensive wheels and brackets. Furthermore, in addition to the longitudinal cutting device, a second one is required, which cuts the partial web to be drawn in wider for the duration of the drawing-in process, so that it reaches the drawing-in belts guided outside the web area.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Einziehen von Bahnen in Rollenrotationsdruckmaschinen mit einem endlosen, auf dem Einziehweg geführten Bändersystem, an dem die einzuziehende Bahn befestigt ist, zu schaffen, die kostengünstig erstellbar ist. Außerdem soll auch das Einziehen einer Teilbahn über Wendestangen mit geringem Aufwand ermöglicht werden. Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß auf dem Einziehweg ein Einziehband in Form eines Hakenbandes geführt wird und der Bahnanfang ein Schlaufenband trägt oder umgekehrt. Die Vorrichtung arbeitet mit nur einem endlosen Einziehband und erfordert keine zweite Längsschneideeinrichtung. Der Bahnanfang wird günstig durch das hinterklebte Schlaufenband verfestigt.The invention has for its object to provide a device for pulling webs in web-fed rotary printing presses with an endless belt system guided on the feed path, to which the web to be drawn in is fastened, which can be produced at low cost. In addition, it should also be possible to pull in a partial web via turning bars with little effort. According to the invention, the object is achieved in that a pull-in tape in the form of a hook tape is guided on the pull-in path and the beginning of the web carries a loop tape or vice versa. The device works with only one endless feed belt and does not require a second longitudinal cutting device. The beginning of the web is solidified by the loop tape.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous refinements of the invention result from the subclaims.

Die Erfindung soll nachfolgend an einem Ausführungsbeispiel näher erläutert werden. In den zugehörigen Zeichnungen zeigt:

Fig. 1
eine Einziehvorrichtung in der Ansicht;
Fig. 2
die Draufsicht auf den Einziehweg von Fig. 1;
Fig. 3
die Ansicht Z aus Fig. 1;
Fig. 4
eine Leitwalze gemäß Ansicht Y aus Fig. 2;
Fig. 5
die Einzelheit X aus Fig. 2, ohne Einziehband dargestellt;
Fig. 6
eine analoge Variante zu Fig. 3 in der Seitenansicht.
The invention will be explained in more detail using an exemplary embodiment. In the accompanying drawings:
Fig. 1
a retractor in the view;
Fig. 2
the top view of the retraction path of Fig. 1;
Fig. 3
the view Z from Fig. 1;
Fig. 4
a guide roller according to view Y from FIG. 2;
Fig. 5
the detail X from Figure 2, shown without a feed belt.
Fig. 6
an analog variant of Fig. 3 in side view.

Fig. 1 zeigt den Bereich einer Druckmaschine, wie er zwischen nicht dargestellten Druckwerken und nicht dargestelltem Falzapparat angetroffen werden kann. Eine bedruckte Bahn 1 wird hier längsgeschnitten und die entstehenden Teilbahnen 2; 3 werden aufeinanderliegend über die Trichteralze 4 dem Falzapparat zugeführt. Eine Längsschneideeinrichtung 5 enthält eine Schneidwalze 6, die in einer Schneidnut 7 einen Schneidring 8 trägt. Letzterer arbeitet mit einem Schneidmesser 9 zusammen (Fig. 3). Neben der Schneidnut 7 ist gegenüber dem Walzenmantel 10 drehbar eine Rolle 11 gelagert, die in einer Nut 12 das Einziehband 13 aufnimmt. Dabei liegt das Einziehband 13 geringfügig tiefer als die Walzenoberfläche, damit das nach dem Einziehvorgang stillstehende Einziehband 13 nicht auf der Bahnoberfläche schleift.Fig. 1 shows the area of a printing press as it can be found between printing units, not shown, and folder, not shown. A printed web 1 is cut longitudinally here and the partial webs 2; 3 are fed one on top of the other via the funnel salts 4 to the folder. A longitudinal cutting device 5 contains a cutting roller 6, which carries a cutting ring 8 in a cutting groove 7. The latter works together with a cutting knife 9 (Fig. 3). In addition to the cutting groove 7, a roller 11 is rotatably mounted with respect to the roller jacket 10 and receives the feed belt 13 in a groove 12. The feed belt 13 is located slightly lower than the roll surface, so that the feed belt 13, which is stationary after the pulling-in process, does not rub on the web surface.

Auf dem weiteren Einziehweg wird das Einziehband 13 über Papierleitwalzen 14 geführt, deren Walzenmantel 15 drehbar auf Buchsen 16; 17 lagert, die ihrerseits verschiebbar auf der Leitwalzenachse 18 angeordnet sind (Fig. 4). Die Buchse 17 trägt neben dem Walzenmantel 15 und gegenüber diesem drehbar eine Rolle 19, die das Einziehband 13 aufnimmt. Weiterhin ist an der Buchse 17 ein im Gestell gelagerter Arbeitszylinder 20 angelenkt. Statt dessen könnte als Motor z. B. auch ein Magnet zum Einsatz kommen.On the further feed path, the feed belt 13 is guided over paper guide rollers 14, the roller jacket 15 of which is rotatable on bushings 16; 17 supports, which in turn are slidably arranged on the guide roller axis 18 (Fig. 4). In addition to the roller jacket 15 and rotatable relative to the latter, the bushing 17 carries a roller 19 which receives the feed belt 13. Furthermore, a working cylinder 20 mounted in the frame is articulated on the bushing 17. Instead, as a motor z. B. a magnet can also be used.

Das Einziehband 13 passiert weiterhin die Wendestangen 21; 22. Diese tragen hierzu außerhalb des Bahnführungsbereiches je eine Wendelbuchse 23; 24 (Fig. 2). Jede Wendelbuchse 23; 24 weist eine Wendelnut 25 auf, in der das Einziehband 13 geführt wird (Fig. 5). Unter Entfall der Wendelbuchsen 23; 24 kann die Wendelnut auch direkt im Mantel der Wendestangen 21; 22 eingearbeitet sein.The feed belt 13 continues to pass the turning bars 21; 22. For this purpose, each carry a spiral bushing 23 outside the web guiding area; 24 (Fig. 2). Each spiral bushing 23; 24 has a helical groove 25 in which the pull-in belt 13 is guided (FIG. 5). Eliminating the spiral bushings 23; 24, the spiral groove can also directly in the jacket of the turning bars 21; 22 incorporated.

Das Einziehband 13 führt weiter zu einer Umlenkrolle 26 und von da über Wendestangen 27; 28 und eine Bandrolle 29 zurück zur Schneidwalze 6. Im Bereich vor der Umlenkrolle 26 sind ein Sensor 30 und eine Sprühdüse 31 angeordnet, und an der Umlenkrolle 26 befindet sich ein Abstreifer 32. Die Umlenkrolle 26 ist schwenkbar und steht mit einem Motor 33 in Antriebsverbindung. Die Wendestangen 27; 28 weisen Wendelnuten auf.The feed belt 13 leads further to a deflection roller 26 and from there via turning bars 27; 28 and a belt roller 29 back to the cutting roller 6. In the area in front of the deflection roller 26, a sensor 30 and a spray nozzle 31 are arranged, and on the deflection roller 26 there is a scraper 32. The deflection roller 26 is pivotable and is in drive connection with a motor 33 . The turning bars 27; 28 have spiral grooves.

Die einzuziehende Bahn 1 ist mit einer Spitze 34 versehen, die mit einem Schlaufenband 35 hinterklebt ist. Die Bahn 1 wird durch die Druckmaschine mit einer Einziehvorrichtung, beispielsweise eine Kette 36 mit einem Mitnehmer 37, eingezogen. Beim Passieren der Schneidwalze 6 wird die Bahn 1 längsgeschnitten. Während die entstehende Teilbahn 3 von der Kette 36 weiter eingezogen wird, geht das Schlaufenband 35 der Teilbahn 2 mit den Häkchen des Einziehbandes 13 eine Haftverbindung ein. Dies geschieht selbständig beim Passieren der Schneidwalze 6 infolge der bei der Umschlingung aus den Zugkraftkomponenten auf die Schneidwalze 6 und damit auf das um diese geführte Einziehband 13 gerichteten Druckkraft. Das Einziehband 13 wird während des Einziehvorganges vom Motor 33 mit Einziehgeschwindigkeiten angetrieben. Es zieht die Teilbahn 2 zunächst über die Leitwalzen 14. Diese werden mittels der Arbeitszylinder 20 axial so positioniert, daß sich ihre das Einziehband 13 führenden Rollen 19 auf der aus dem Bahnführungsbereich heraustretenden Bahn des Einziehbandes 13 befinden. Sodann wird die Teilbahn 2 über die Wendestangen 21; 22 zur Umlenkrolle 26 eingezogen. Diese nimmt während des Einziehens die gezeichnete Stellung ein. Das Ankommen der Teilbahn 2 signalisiert der Sensor 30, worauf mittels der Sprühdüse 31 Leim auf den Bahnanfang gesprüht wird und dieser beim Passieren der Umlenkrolle 26 an der Unterseite der Teilbahn 3 festklebt. Mit dem Abstreifer 32 wird anschließend die Teilbahn 2 vom Einziehband 13 abgezogen. Mit der Beendigung des Einziehvorganges wird der Motor 33 abgeschaltet und die Umlenkrolle 26 in die gestrichelt gezeichnete Lage abgeschwenkt. Weiterhin werden die Arbeitszylinder 20 umgesteuert und dadurch die Walzenmäntel der Papierleitwalzen 14 axial verschoben, wodurch die Rollen 19 samt dem Einziehband 13 aus dem Bahnführungsbereich gebracht werden. Dank der Verschiebbarkeit erübrigt sich, soweit funktionell möglich, ein konstruktives Tieferlegen des Einziehbandes 13 in den Rollen 19, und die Teilbahn 2 hat beim Betrieb der Druckmaschine über ihre ganze Breite eine ununterbrochene Auflage auf den Walzenmänteln 15.The web 1 to be drawn in is provided with a tip 34 which is glued with a loop tape 35. The web 1 is drawn in by the printing press with a drawing device, for example a chain 36 with a driver 37. When passing the cutting roller 6, the web 1 is cut lengthways. While the resulting part web 3 is drawn in further by the chain 36, the loop band 35 of the part web 2 enters into an adhesive connection with the hooks of the drawing band 13. This happens automatically when passing through the cutting roller 6 as a result of the wrapping of the tensile force components on the cutting roller 6 and thus on the this guided pull-in belt 13 directed compressive force. The pull-in belt 13 is driven by the motor 33 at the pull-in speeds during the pulling-in process. The partial web 2 is first pulled over the guide rollers 14. These are positioned axially by means of the working cylinders 20 so that their rollers 19 guiding the feed belt 13 are located on the web of the feed belt 13 emerging from the web guide area. Then the partial web 2 on the turning bars 21; 22 retracted to the pulley 26. This takes the drawn position during the drawing. The arrival of the partial web 2 is signaled by the sensor 30, whereupon glue is sprayed onto the beginning of the web by means of the spray nozzle 31 and sticks to the underside of the partial web 3 when it passes the deflection roller 26. The partial web 2 is then pulled off the feed belt 13 with the stripper 32. When the pulling-in process ends, the motor 33 is switched off and the deflection roller 26 is pivoted into the position shown in dashed lines. Furthermore, the working cylinders 20 are reversed, thereby axially displacing the roll shells of the paper guide rolls 14, as a result of which the rolls 19 together with the feed belt 13 are brought out of the web guide area. Thanks to the displaceability, as far as is functionally possible, there is no need to constructively lower the drawing-in belt 13 in the rollers 19, and the partial web 2 has an uninterrupted support on the roller jackets 15 over its entire width when the printing machine is in operation.

Eine weitere Variante der Führung des Einziehbandes 13 im Bereich einer Längsschneideeinrichtung 38 zeigt Fig. 6. Hier ist in Bahnlaufrichtung nach der als Schneidwalze 39 ausgebildeten Papierleitwalze eine Bandrolle 40 angeordnet, die gegen eine Andrückrolle 41 schwenkbar ist. Zwischen der Schneidwalze 39 und der Bandrolle 40 befindet sich eine Leitzunge 42, die in Nuten der Walze 39 hineinragt. Während des Papiereinziehens ist die Bandrolle 40 an die Andrückrolle 41 angestellt. Die über die Schneidwalze 39 geführte Bahn 1 wird mittels eines Schneidmessers 43 in die Teilbahnen 2 und 3 längsgeschnitten. Beim weiteren Einziehen der Teilbahn 3 (in analoger Weise wie in Fig. 2) wird die Teilbahn 2 unter Mitwirkung der Leitzunge 42 zwischen die Bandrolle 40 und die Andrückrolle 41 geführt. Unter der Kraftwirkung zwischen diesen beiden Rollen geht das als Hakenband ausgeführte Einziehband 13 mit dem unter die Spitze der Teilbahn 2 geklebten Schlaufenband eine Haftverbindung ein. Das weitere Einziehen erfolgt wie im oben beschriebenen Ausführungsbeispiel. Nach dem Einziehen wird die Bandrolle 40 wieder in die gestrichelt gezeichnete Stellung zurückgeschwenkt. Das Einziehband 13 befindet sich dadurch im Druckbetrieb nicht im Bahnbereich der Längsschneideeinrichtung.A further variant of the guidance of the feed belt 13 in the area of a longitudinal cutting device 38 is shown in FIG. Between the cutting roller 39 and the belt roll 40 there is a guide tongue 42 which projects into grooves in the roller 39. During the paper feeding, the tape roll 40 is placed against the pressure roller 41. The web 1 guided over the cutting roller 39 is cut lengthwise into the partial webs 2 and 3 by means of a cutting knife 43. When the partial web 3 is pulled in further (in an analogous manner as in FIG. 2), the partial web 2 with the participation of the guide tongue 42 between the tape roll 40 and the pressure roller 41. Under the action of force between these two rollers, the pull-in tape 13 designed as a hook tape enters into an adhesive connection with the loop tape glued under the tip of the partial web 2. The further retraction takes place as in the exemplary embodiment described above. After pulling in, the tape roll 40 is pivoted back into the position shown in dashed lines. The feed belt 13 is therefore not in the web area of the slitter during printing.

Im Ausführungsbeispiel wurde der Bahnanfang mit einem Schlaufenband versehen und das Einziehband als Hakenband ausgeführt. Ebenfalls unter den Schutzumfang des Patentes fallend kann in der Umkehrung dessen der Bahnanfang mit einem Hakenband hinterklebt und das Einziehband als Schlaufenband ausgeführt sein. Ebenso kann unter Benutzung der Erfindung das Einziehband auch um andere Wendestangenanordnungen geführt werden.In the exemplary embodiment, the beginning of the web was provided with a loop band and the pull-in band was designed as a hook band. Likewise falling under the scope of protection of the patent, the reverse of which the beginning of the web can be glued with a hook tape and the pull-in tape can be designed as a loop tape. Likewise, the pull-in tape can also be guided around other turning bar arrangements using the invention.

Claims (9)

  1. Device for threading webs in web-fed rotary printing machines having an endless belt system guided on the threading path on which is secured the web to be threaded, characterized in that a threading belt (13) in the form of a hooked belt is guided on the threading path, and the beginning of the web carries a looped belt (35) or vice versa.
  2. Device according to claim 1, characterized in that the threading belt (13) is guided from the region of a longitudinal cutting device (5; 38) by means of turning bars (21; 22) to another partial web (3) and guided back over a guide roller (26) and turning devices.
  3. Device according to claim 2, characterized in that a guide roller is constructed as a cutting roller (6) with a cutting groove (7), and the threading belt (13) is guided next to the latter with respect to the guide roller surface, lying deeper in a groove (12), on a roller (11) mounted rotatably with respect to the roller casing (10).
  4. Device according to claim 2, characterized in that arranged after the longitudinal cutting device (38) are a belt roller (40), pivotable against a press roller (41) by means of which the threading belt (13) is guided, and a guide tongue (42).
  5. Device according to claim 2, characterized in that the threading belt (13) is guided on the turning bars (21; 22) respectively in a helical groove which is arranged next to the web-guiding region of the turning bar (21; 22).
  6. Device according to claim 5, characterized in that a helical bushing (23; 24) is arranged on each turning bar (21; 22) next to the web-guiding region and carries a helical groove (25) receiving the threading belt (13).
  7. Device according to claim 2, characterized in that paper guide rollers (14) arranged on the threading path respectively have a roller casing (15) which is mounted rotatably on bushings (16; 17) which in turn are arranged movably on the guide roller axis (18), a bushing (17) next to the roller casing (15) in a roller (19) mounted rotatably with respect to the casing receives the threading belt (13), and a motor mounted fixedly in the frame engages on a bushing (17).
  8. Device according to claim 2, characterised in that the guide roller (26) is pivotable towards the other partial web (3) and in the threading direction in front of the guide roller (26) a sensor (30) and a spray nozzle (31) are arranged and behind the guide roller (26) a stripper (32).
  9. Device according to claim 2, characterised in that the guide roller (26) is in drive connection with a motor (33).
EP92115395A 1991-09-14 1992-09-09 Device for threading webs in rotary web printing machines Expired - Lifetime EP0533042B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4130678A DE4130678C2 (en) 1991-09-14 1991-09-14 Device for feeding webs in web-fed rotary printing machines
DE4130678 1991-09-14

Publications (2)

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EP0533042A1 EP0533042A1 (en) 1993-03-24
EP0533042B1 true EP0533042B1 (en) 1996-02-07

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EP92115395A Expired - Lifetime EP0533042B1 (en) 1991-09-14 1992-09-09 Device for threading webs in rotary web printing machines

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DE19837361A1 (en) 1998-08-18 2000-02-24 Koenig & Bauer Ag Device for drawing printing webs into rotary printing machine has reinforcement part connected with positive locking to end of web and coupled to intake member
US7066368B1 (en) 1999-03-19 2006-06-27 Koenig & Bauer Aktiengesellschaft Paper web draw-in device for a web-fed printing press
JP3075408B1 (en) * 1999-08-16 2000-08-14 株式会社東京機械製作所 Automatic paper threading device for turn bar
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DE10152524C1 (en) 2001-10-24 2003-03-13 Koenig & Bauer Ag Pulling-in tip, for fixing to the beginning of a material web to be pulled in, has at least two sections transverse to transporting direction
US20070235923A1 (en) * 2006-04-05 2007-10-11 Keller James J Sheet feeder, feed roller system and method
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DE102013113289A1 (en) * 2013-12-02 2015-06-03 Khs Gmbh Device and method for cutting a web material in partial webs and spreading the partial webs
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CN108082985A (en) * 2018-01-31 2018-05-29 浙江唐艺织物整理有限公司 A kind of the automatic of fabric post-treatment equipment wears cloth apparatus
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CA2077958C (en) 1996-09-17
US5255602A (en) 1993-10-26
DE59205288D1 (en) 1996-03-21
CA2077958A1 (en) 1993-03-15
JPH05220926A (en) 1993-08-31
DE4130678A1 (en) 1993-03-18
EP0533042A1 (en) 1993-03-24
DE4130678C2 (en) 1995-03-16

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