WO1980001795A1 - Device for changing rollers - Google Patents

Device for changing rollers Download PDF

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Publication number
WO1980001795A1
WO1980001795A1 PCT/DE1980/000017 DE8000017W WO8001795A1 WO 1980001795 A1 WO1980001795 A1 WO 1980001795A1 DE 8000017 W DE8000017 W DE 8000017W WO 8001795 A1 WO8001795 A1 WO 8001795A1
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WO
WIPO (PCT)
Prior art keywords
web
roll
sheet
cross
cross cutter
Prior art date
Application number
PCT/DE1980/000017
Other languages
German (de)
French (fr)
Inventor
J Marass
Original Assignee
Spiess Gmbh G
J Marass
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Spiess Gmbh G, J Marass filed Critical Spiess Gmbh G
Publication of WO1980001795A1 publication Critical patent/WO1980001795A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/38—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
    • B26D1/385—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/14—Accumulating surplus web for advancing to machine while changing the web roll

Definitions

  • the invention relates to a roll-sheet unit with a cross cutter to which web material that can be unwound from a roll can be fed, which can be fed in the form of sheets cut from it in the cross cutter to a sheet processing machine, in particular a sheet printing machine.
  • the invention is therefore based on the object, while avoiding the disadvantages of the known arrangements, of creating a roll-sheet unit of the type mentioned at the outset, which operates with a flying roll change, without sheets having a thickening in the area of the printed image.
  • This object is achieved in a surprisingly simple manner according to the invention in that, in addition to the cross cutter cutting the web into sheets, a further cross cutter is provided, by means of which a joint between the outgoing web and a web to be glued to it can be produced in order to accomplish a flying roll change, and that the length of the path between the two cross cutters is adjustable. Due to the inventive adjustability of the length of the web between the two cross cutters, the interface of the first cross cutter can easily be placed in such a way that the unavoidable thickening in the area of the joint between the two webs after an arc cut is in an arch area that is not printed. Usually this is the case in the area of the sheet edges. The length of the path is therefore expediently easy to set depending on the format size processed in each case.
  • the length of the path In many cases, it can prove to be expedient to set the length of the path exactly to a multiple of the processed format size.
  • the arc cut of the first cross cutter lies exactly at the same point as the cut made by the second cross cutter to produce a butt joint.
  • the thickening in the area of the joint is therefore severed so that one half in the area of a sheet trailing edge and the other half in the area of a sheet leading edge, or, if the sheets cut from the sheet are further processed in the direction perpendicular to the sheet path, in the area the left or right edge of the sheet and thus in the area of the usually unprinted edge.
  • the drawing contains a schematic representation of a roll-sheet unit according to the invention with a paper storage adjustable capacity.
  • the outlined at 1 frame of the roll-sheet unit shown in the drawing voltage is provided with a roll carrier 2 for receiving the sheet cutter in the cross cutter 3 of the type indicated at 5 to be processed cardboard roll 7 or 8.
  • the cross cutter 3 is fed from one of the rolls of material in the form of a paper web indicated at 4.
  • Pull rollers 6 can be provided to accomplish the required path feed.
  • a device designated as a whole by 9 is provided, which has a further cross cutter 10 to which the outgoing web 11 and which have been unwound from the processed roll 8 the web 12 which can be unwound from the new roll 7 and is to be adhered thereto is fed in the form of a double web.
  • the cross cutter 10 of the above-mentioned device for accomplishing a flying roll change cuts the double web when it is actuated, so that there is a joint between the rear end of the outgoing web 11 produced here and the front end of the web 12 to be glued to it produced here.
  • the ends of the webs 11 and 12 can be glued together in a slightly overlapping manner.
  • Another embodiment can be included exist to simply bridge the joint indicated at 13 by means of an adhesive strip 14. The aforementioned bridging of the joint 13, however, results in a certain thickening of the web in any case.
  • the length of the path is between the cross cutter 3 and the further cross cutter 10 adjustable.
  • a paper store designated as a whole as 15, is simply provided for this purpose, which is arranged between cross cutter 3 and cross cutter 10 and whose storage capacity is adjustable.
  • the store 15 is provided with rollers 16 which can be adjusted in their position, around which the paper web runs in a loop.
  • the rollers 16 can take over the function of so-called dancer rollers, which are arranged between two stationary rollers 17.
  • the rollers 16 can be arranged on slides, not shown here, which each run in a longitudinal guide of the frame 1 indicated at 18. Suitable detent elements can be provided for ascertaining the slides receiving the rollers 16.
  • the sheets indicated at 5 are to be delivered in a sheet feeder arranged at an angle to the plane of the drawing, that is to say to the direction of the web advance, in a sheet feeder arranged at an angle to the roller-sheet unit shown.
  • the cut edge generated in the area of the cross cutter 3 thus forms the left or right sheet edge, in the area of which there is normally an unprinted edge.
  • the storage capacity can expediently be set such that the length of the path between the two cross cutters 3 and 10 results in an exact multiple of the section or format size produced in the cross cutter 3.
  • the cut of the cross cutter 3 is therefore practically at the same point as the cut of the cross cutter 10, so that the thickening present in the region of the joint is practically severed, so that half is in the area of the right edge of a first sheet and the other half is in the area of the left edge of the subsequent sheet comes to rest, so that a relatively narrow unprinted edge is sufficient to accommodate the thickening.
  • the setting of the memory 15 can, however, also take place in such a way that the cross cutter 3 is cut immediately before the thickening. The thickening thus lies in the region of the front edge of a sheet leaving the cross cutter in the web running direction.
  • the rollers 16 are expediently adjusted before the intended roll change is initiated.
  • an empirically calibrated scale can expediently be provided in the area of the guides 18.
  • the rollers 16 can be adjusted individually or together. It is only important to ensure that the length of the path cannot be changed after the setting has been made.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

A web unrolled from a roller (7, 8) is cut out into sheets in a transverse cutter (3) which are then supplied to a sheet using machine. To provide a continuous or roller change during the operation without forming in the sheets thicker locations which would affect the printing, a second transverse cutter (10) is arranged beside the first cutter (3) which allows to butt joint a tail end (11) of a web and a head end of the following web (12). The length of the web extending between the two cutters is adjustable.

Description

Rolle-Bogeneinheit Roll-arch unit
Die Erfindung betrifft eine Rolle-Bogeneinheit mit einem QuerSchneider, dem von einer Rolle abwickelbares Bahnmaterial zuführbar ist, das in Form von im Querschneider hiervon heruntergeschnittenen Bogen einer Bogenverarbeitungsmaschine, insbesondere einer Bogendruckmaschine, zuführbar ist.The invention relates to a roll-sheet unit with a cross cutter to which web material that can be unwound from a roll can be fed, which can be fed in the form of sheets cut from it in the cross cutter to a sheet processing machine, in particular a sheet printing machine.
Eine Anordnung dieser Art ist aus der DE-PS 20 10 467 bekannt. Bei dieser bekannten Anordnung sind jedoch Betriebsunterbrechungen im Falle eines Rollenwechsels nicht vermeidbar, da ein sogenannter fliegender Rollenwechsel nicht möglich ist. Der Grund dafür, warum ein sogenannter fliegender Rollenwechsel bei Anordnungen eingangs erwähnter Art bisher nicht ins Auge gefaßt wurde, ist darin zu sehen, daß beim Ankleben des hinteren Endes der auslaufenden Bahn an das vordere Ende der hiran anschließenden Bahn, sei es nun durch Überlappung der beiden Bahnen im Bereich der Stoßkante oder durch Verwendung eines die Stoßkante überbrückenden Klebstreifens, eine Verdickung entsteht, die zu Schwierigkeiten in der nachfolgenden Bogenverarbeitungsmaschine führen kann. So ist beispielsweise das Gummituch einer Bogen-Offset¬An arrangement of this type is known from DE-PS 20 10 467. In this known arrangement, however, interruptions in operation in the event of a roll change cannot be avoided since a so-called flying roll change is not possible. The reason why a So-called flying roll change in arrangements of the type mentioned above has not previously been considered, can be seen in the fact that when the rear end of the outgoing web is glued to the front end of the hiran adjoining web, whether by overlapping the two webs in the region of the abutting edge or by using an adhesive strip bridging the abutting edge, a thickening arises which can lead to difficulties in the subsequent sheet processing machine. For example, the blanket is a sheet offset
Druckmaschine höchst empfindlich und kann beim Durchgang von Verdickungen vorstehend umrissener Art beschädigt werden. Rollendruckmaschinen, bei denen ein fliegender Rollenwechsel bereits praktiziert wird, sind gegen Verdickungen der genannten Art unempfindlich. Hieraus konnte demnach auch keine Lehre zur Bewerkstelligung eines fliegenden Rollenwechεels bei Anordnungen eingangs erwähnter Art entnommen werden.Printing machine extremely sensitive and can be damaged when passing through thickenings of the type outlined above. Web presses, in which a flying roll change is already practiced, are insensitive to thickening of the type mentioned. Accordingly, no teaching on the accomplishment of a flying role change in arrangements of the type mentioned at the outset could be derived from this.
Der Erfindung liegt daher die Aufgabe zugrunde, unter Vermeidung der Nachteile der bekannten Anordnungen eine Rolle-Bogeneinheit eingangs erwähnter Art zu schaffen, die mit fliegendem Rollenwechsel arbeitet, ohne daß sich Bogen mit im Bereich des Druckbilds vorhandener Verdickung ergeben.The invention is therefore based on the object, while avoiding the disadvantages of the known arrangements, of creating a roll-sheet unit of the type mentioned at the outset, which operates with a flying roll change, without sheets having a thickening in the area of the printed image.
Die Lösung dieser Aufgabe gelingt gemäß der Erfindung in überraschend einfacher Weise dadurch, daß neben dem die Bahn in Bogen zerschneidenden Querεchneider ein weiterer Querschneider vorgesehen ist, mittels dessen zur Bewerkstelligung eines fliegenden Rollenwechsels eine Stoßstelle zwischen der auslaufenden Bahn und einer hieran anzuklebenden Bahn herstellbar ist, und daß die Länge des Bahnverlaufs zwischen den beiden Querschneidern einstellbar ist. Durch die erfindungsgemäße Einstellbarkeit der Länge des Bahnverlaufs zwischen den beiden Querschneidern läßt sich die Schnittstelle des ersten QuerSchneiders ohne weiteres so legen, daß die im Bereich der Stoßstelle zwischen den beiden Bahnen nicht vermeidbare Verdickung nach erfolgtem Bogenschnitt in einem Bogenbereich liegt, der nicht bedruckt wird. Normalerweise ist dies im Bereich der Bogenränder der Fall. Die Länge des Bahnverlaufs ist daher zweckmäßig einfach in Abhängigkeit von der jeweils verarbeiteten Formatgröße einzustellen.This object is achieved in a surprisingly simple manner according to the invention in that, in addition to the cross cutter cutting the web into sheets, a further cross cutter is provided, by means of which a joint between the outgoing web and a web to be glued to it can be produced in order to accomplish a flying roll change, and that the length of the path between the two cross cutters is adjustable. Due to the inventive adjustability of the length of the web between the two cross cutters, the interface of the first cross cutter can easily be placed in such a way that the unavoidable thickening in the area of the joint between the two webs after an arc cut is in an arch area that is not printed. Usually this is the case in the area of the sheet edges. The length of the path is therefore expediently easy to set depending on the format size processed in each case.
Vielfach kann es sich dabei als zweckmäßig erweisen, die Länge des Bahnverlaufs genau auf ein Vielfaches der verarbeiteten Formatgröße einzustellen. Bei einer derartigen Einstellung liegt der Bogenschnitt des ersten QuerSchneiders genau an derselben Stelle wie der vom zweiten Querschneider ausgeführte Schnitt zur Herstellung einer Stoßstelle. Die im Bereich der Stoßstelle vorhandene Verdickung wird daher genau durchtrennt, so daß die eine Hälfte im Bereich einer Bogenhinterkante und die andere Hälfte im Bereich einer Bogenvorderkante, bzw., sofern die von der Bahn heruntergeschnittenen Bogen in zum Bahnverlauf senkrechter Richtung weiterverarbeitet werden, im Bereich der linken bzw. rechten Bogenkante und damit im Bereich des in der Regel vorhandenen unbedruckten Rands liegt.In many cases, it can prove to be expedient to set the length of the path exactly to a multiple of the processed format size. With such a setting, the arc cut of the first cross cutter lies exactly at the same point as the cut made by the second cross cutter to produce a butt joint. The thickening in the area of the joint is therefore severed so that one half in the area of a sheet trailing edge and the other half in the area of a sheet leading edge, or, if the sheets cut from the sheet are further processed in the direction perpendicular to the sheet path, in the area the left or right edge of the sheet and thus in the area of the usually unprinted edge.
Der mit den erfindungsgemäßen Maßnahmen erzielbare Hauptvorteil ist daher insbesondere darin zu sehen, daß die beim fliegenden Rollenwechsel sich ergebende Verdickung durch Einstellung der Bahnlänge in einen unbedruckten Randbereich verlegbar ist, so daß sie nicht mit dem Gummituch in Berührung kommt und daher auch keine Beschädigung des Gummituchs entstehen kann. Weitere zweckmäßige Fortbildungen und vorteilhafte Ausgestaltungen der er findungsgemäßen Maßnahmen ergeben sich aus der nachstehenden Beschreibung eines Ausführungsbeispiels anhand der Zeichnung in Verbindung mit den restlichen Ansprüchen.The main advantage that can be achieved with the measures according to the invention is therefore to be seen in particular in the fact that the thickening resulting from the flying roll change can be moved into an unprinted edge region by adjusting the length of the web, so that it does not come into contact with the rubber blanket and therefore does not damage the rubber blanket can arise. Further useful training and advantageous refinements of the Measures according to the invention result from the following description of an exemplary embodiment with reference to the drawing in conjunction with the remaining claims.
Die Zeichnung enthält eine schematische Darstellung einer erfindungsgemäßen Rolle-Bogeneinheit mit einem Papierspeicher einstellbarer Kapazität.The drawing contains a schematic representation of a roll-sheet unit according to the invention with a paper storage adjustable capacity.
Das bei 1 umrißhaft angedeutete Gestell der in der Zeich nung dargestellten Rolle-Bogeneinheit ist mit einem Rollenträger 2 zur Aufnahme der im Querschneider 3 zu Bogen der bei 5 angedeuteten Art zu verarbeitenden Kartonrolle 7 bzw. 8 versehen. Dem QuerSchneider 3 wird von jeweils einer der Rollen abgewickeltes Material in Form einer bei 4 angedeuteten Papierbahn zugeführt. Zur Bewerkstelligung des erforderlichen Bahnvorschubs können Zugrollen 6 vorgesehen sein. Zur Bewerkstelligung eines fliegenden Rollenwechsels beim Wechsel von der bei 8 angedeuteten abgearbeiteten Rolle auf die bei 7 angedeutete neue Rolle ist eine als Ganzes mit 9 bezeichnete Vorrichtung vorgesehen, die einen weiteren QuerSchneider 10 aufweist, dem die von der abgearbeiteten Rolle 8 abgewikkelte auslaufende Bahn 11 und die von der neuen Rolle 7 abgewickelbare, hieran anzuklebende Bahn 12 in Form einer Doppelbahn zugeführt wird. Der Querschneider 10 der genannten Vorrichtung zur Bewerkstelligung eines fliegenden Rollenwechsels durchtrennt bei seiner Betätigung die Doppelbahn, so daß sich eine Stoßstelle zwischen dem hierbei hergestellten hinteren Ende der auslaufenden Bahn 11 und dem hierbei hergestellten vorderen Ende der hieran anzuklebenden Bahn 12 ergibt. Zur Überbrückung der Stoßstelle können die genannten Enden der Bahnen 11 und 12 einfach leicht überlappt miteinander verklebt werden. Eine andere Ausführungsform kann darin bestehen, die bei 13 angedeutete Stoßstelle einfach mittels eines Klebstreifens 14 zu überbrücken. Die genannte Überbrückung der Stoßstelle 13 ergibt jedoch in jedem Fall eine gewisse Verdickung der Bahn.The outlined at 1 frame of the roll-sheet unit shown in the drawing voltage is provided with a roll carrier 2 for receiving the sheet cutter in the cross cutter 3 of the type indicated at 5 to be processed cardboard roll 7 or 8. The cross cutter 3 is fed from one of the rolls of material in the form of a paper web indicated at 4. Pull rollers 6 can be provided to accomplish the required path feed. To accomplish a flying roll change when changing from the processed roll indicated at 8 to the new roll indicated at 7, a device designated as a whole by 9 is provided, which has a further cross cutter 10 to which the outgoing web 11 and which have been unwound from the processed roll 8 the web 12 which can be unwound from the new roll 7 and is to be adhered thereto is fed in the form of a double web. The cross cutter 10 of the above-mentioned device for accomplishing a flying roll change cuts the double web when it is actuated, so that there is a joint between the rear end of the outgoing web 11 produced here and the front end of the web 12 to be glued to it produced here. To bridge the joint, the ends of the webs 11 and 12 can be glued together in a slightly overlapping manner. Another embodiment can be included exist to simply bridge the joint indicated at 13 by means of an adhesive strip 14. The aforementioned bridging of the joint 13, however, results in a certain thickening of the web in any case.
Um zu vermeiden, daß diese Verdickung innerhalb des auf den Bogen 5 anzubringenden Druckbilds liegt und damit beim Durchgang durch die der dargestellten Rolle-Bogeneinheit etwa nachgeordnete Offset-Druckmaschine das Gummituch beschädigt, ist die Länge des Bahnverlaufs zwisehen dem Querschneider 3 und dem weiteren Querschneider 10 einstellbar. Im dargestellten Ausführungsbeispiel ist hierzu einfach ein als Ganzes mit 15 bezeichneter Papierspeicher vorgesehen, der zwischen Querschneider 3 und Querschneider 10 angeordnet ist und dessen Speicherkapazität einstellbar ist. Hierzu ist der Speicher 15 mit in ihrer Lage einstellbaren Walzen 16 versehen, um welche die Papierbahn schleifenartig herumläuft. Bei normalem Betrieb können die Walzen 16 die Funktion sogenannter Tänzerwalzen übernehmen, die zwischen jeweils zwei stationär angeordneten Walzen 17 angeordnet sind. Die Walzen 16 können auf hier nicht näher dargestellten Schlitten angeordnet sein, welche jeweils in einer bei 18 angedeuteten Längsführung des Gestells 1 laufen. Zur Feststellung der die Walzen 16 aufnehmenden Schlitten können geeignete Rastelemente vorgesehen sein.In order to avoid that this thickening lies within the print image to be applied to the sheet 5 and thus damage the rubber blanket when it passes through the offset printing press which is approximately arranged downstream of the roll-sheet unit shown, the length of the path is between the cross cutter 3 and the further cross cutter 10 adjustable. In the exemplary embodiment shown, a paper store, designated as a whole as 15, is simply provided for this purpose, which is arranged between cross cutter 3 and cross cutter 10 and whose storage capacity is adjustable. For this purpose, the store 15 is provided with rollers 16 which can be adjusted in their position, around which the paper web runs in a loop. In normal operation, the rollers 16 can take over the function of so-called dancer rollers, which are arranged between two stationary rollers 17. The rollers 16 can be arranged on slides, not shown here, which each run in a longitudinal guide of the frame 1 indicated at 18. Suitable detent elements can be provided for ascertaining the slides receiving the rollers 16.
Im dargestellten Ausführungsbeispiel sollen die bei 5 angedeuteten Bogen in zur Zeichenebene, d.h. zur Bahnvorlaufrichtung senkrechter Richtung in einen winklig zur dargestellten Rollen-Bogeneinheit angeordneten Bogenanleger abgegeben werden. Die im Bereich des Querschneiders 3 erzeugte Schnittkante bildet somit die jeweils linke bzw. rechte Bogenkante, in deren Bereich normalerweise ein unbedruckter Rand vorhanden ist. In Fällen dieser Art kann die Einstellung der Speicherkapazität zweckmäßig so erfolgen, daß die Länge des Bahnverlaufs zwischen den beiden Querschneidem 3 und 10 genau ein ganzes Vielfaches der im Querschneider 3 hergestellten Abschnitts bzw. Formatgröße ergibt. Der Schnitt des Querschneiders 3 liegt daher praktisch an derselben Stelle wie der Schnitt des Querschneiders 10, so daß die im Bereich der Stoßstelle vorhandene Verdickung praktisch durchtrennt wird, womit die eine Hälfte im Bereich des rechten Rands eines ersten Bogens und die andere Hälfte im Bereich des linken Rands des jeweils nachfolgenden Bogens zu liegen kommt, so daß auch noch ein verhältnismäßig schmaler unbedruckter Rand ausreicht, die genannte Verdickung aufzunehmen. Die Einstellung des Speichers 15 kann aber auch so erfolgen, daß der Schnitt des Querschneiders 3 unmittelbar vor der Verdickung erfolgt. Hierbei liegt somit die Verdickung im Bereich des vorderen Rands eines den Querschneider in Bahnlaufrichtung verlassenden Bogens. Dies kann sich unter Umständen dann als zweckmäßig erweisen, wenn die Bogen 5 in Bahnlaufrichtung weiterverarbeitet werden, so daß die am vorderen Bogenrand sich befindende Verdickung praktisch den Bereich umfaßt, in welchem der Bogen beim Bedrucken in der Druckmaschine von den Greifern gehalten wird und damit ebenfalls unbedruckt bleibt.In the exemplary embodiment shown, the sheets indicated at 5 are to be delivered in a sheet feeder arranged at an angle to the plane of the drawing, that is to say to the direction of the web advance, in a sheet feeder arranged at an angle to the roller-sheet unit shown. The cut edge generated in the area of the cross cutter 3 thus forms the left or right sheet edge, in the area of which there is normally an unprinted edge. In In cases of this type, the storage capacity can expediently be set such that the length of the path between the two cross cutters 3 and 10 results in an exact multiple of the section or format size produced in the cross cutter 3. The cut of the cross cutter 3 is therefore practically at the same point as the cut of the cross cutter 10, so that the thickening present in the region of the joint is practically severed, so that half is in the area of the right edge of a first sheet and the other half is in the area of the left edge of the subsequent sheet comes to rest, so that a relatively narrow unprinted edge is sufficient to accommodate the thickening. The setting of the memory 15 can, however, also take place in such a way that the cross cutter 3 is cut immediately before the thickening. The thickening thus lies in the region of the front edge of a sheet leaving the cross cutter in the web running direction. This may prove to be useful if the sheets 5 are further processed in the direction of web travel, so that the thickening located at the front edge of the sheet practically encompasses the area in which the sheet is held by the grippers during printing in the printing machine and thus also remains unprinted.
Die Einstellung der Walzen 16 erfolgt zweckmäßig vor Einleitung des beabsichtigten Rollenwechsels. Zweckmäßig kann hierzu im Bereich der Führungen 18 eine empirisch geeichte Skala vorgesehen sein. Die Rollen 16 können dabei einzeln oder gemeinsam verstellt werden. Es ist lediglich darauf zu achten, daß die Länge des Bahnverlaufs nach erfolgter Einstellung nicht mehr veränderbar ist. The rollers 16 are expediently adjusted before the intended roll change is initiated. For this purpose, an empirically calibrated scale can expediently be provided in the area of the guides 18. The rollers 16 can be adjusted individually or together. It is only important to ensure that the length of the path cannot be changed after the setting has been made.

Claims

A n s p r ü c h e Expectations
1) Rolle-Bogeneinheit mit einem Querschneider, dem von einer Rolle abwickelbares Bahnmaterial zuführbar ist, das in Form von im Querschneider hiervon heruntergeschnittenen Bogen einer Bogenverarbeitungsmaschine, insbesondere einer Bogendruckmaschine, zuführbar ist, dadurch gekennzeichnet, daß ein weiterer Querschneider (10) vorgesehen ist, mittelε dessen zur Bewerkstelligung eines fliegenden Rollenwechsels eine Stoßstelle zwischen der auslaufenden Bahn (11) und einer hieran anzuklebenden Bahn (12) herstellbar ist, und daß die Länge des Bahnverlaufε zwischen den beiden Querschneidern (3, 10) einstellbar ist.1) Roll-sheet unit with a cross cutter, to which web material that can be unwound from a roll can be fed, which can be fed in the form of sheets cut off in the cross cutter from a sheet processing machine, in particular a sheet printing machine, characterized in that a further cross cutter (10) is provided, by means of which a joint between the outgoing web (11) and a web (12) to be glued to it can be produced to accomplish a flying roll change, and that the length of the web course between the two cross cutters (3, 10) is adjustable.
2) Rolle-Bogeneinheit nach Anspruch 1, dadurch gekennzeichnet, daß die Länge des Bahnverlaufs zwischen den beiden Querschneidern (3, 10) in Abhängigkeit von der im Querschneider (3) erzeugten Formatgröße einstellbar ist.2) Roll-sheet unit according to claim 1, characterized in that the length of the path between the two cross cutters (3, 10) depending on the format size generated in the cross cutter (3) is adjustable.
3) Rolle-Bogeneinheit nach Anspruch 2, dadurch gekennzeichnet, daß die Länge des Bahnverlaufε zwischen den Querschneidern (3, 10) auf ein ganzes Vielfaches der im Querschneider (3) erzeugten Formatgröße einstellbar ist.3) Roll-sheet unit according to claim 2, characterized in that the length of the path course between the cross cutters (3, 10) is adjustable to a whole multiple of the format size generated in the cross cutter (3).
4) Rolle-Bogeneinheit nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im Bereich des Bahnverlaufs zwischen den Querschneidern4) Roll-sheet unit according to at least one of the preceding claims, characterized in that in the region of the path between the cross cutters
(3, 10) ein Speicher (15) einstellbarer Kapazität vorgesehen ist.(3, 10) a memory (15) adjustable capacity is provided.
5) Rolle-Bogeneinheit nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Länge des Bahnverlaufε zwischen den Querschneidern (3, 10) mittels mindestens einer in ihrer Lage einstellbaren, von der Bahn (4) umschlungenen Walze (16) einstellbar ist. 5) Roll-sheet unit according to at least one of the preceding claims, characterized in that the length of the path course between the cross cutters (3, 10) can be adjusted by means of at least one roller (16) which is adjustable in its position and is wrapped by the web (4).
PCT/DE1980/000017 1979-02-21 1980-02-20 Device for changing rollers WO1980001795A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2906567 1979-02-21
DE19792906567 DE2906567C2 (en) 1979-02-21 1979-02-21 Device for feeding a material web unwound from a roll to a processing machine

Publications (1)

Publication Number Publication Date
WO1980001795A1 true WO1980001795A1 (en) 1980-09-04

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ID=6063454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1980/000017 WO1980001795A1 (en) 1979-02-21 1980-02-20 Device for changing rollers

Country Status (6)

Country Link
JP (1) JPS56500213A (en)
DD (1) DD149200A1 (en)
DE (1) DE2906567C2 (en)
GB (1) GB2053161B (en)
SE (1) SE8007385L (en)
WO (1) WO1980001795A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8611722D0 (en) * 1986-05-14 1986-06-25 Drg Uk Ltd Processing paper & other webs
DE10351305A1 (en) * 2003-10-31 2005-05-25 Man Roland Druckmaschinen Ag Combined printing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE516619C (en) * 1929-02-11 1931-01-24 Anciens Etablissements L Chamb Method for setting a paper web
DE1123898B (en) * 1956-07-26 1962-02-15 Champlain Company Inc Device for connecting butt joint ends of the web

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912329B1 (en) * 1970-02-17 1974-03-23
FR2272933A1 (en) * 1974-05-29 1975-12-26 Bodenan Robert Method of joining two bands of e.g. paper - uses rolls to move bands together cut, apply adhesive tape and move apart
US3995791A (en) * 1975-07-09 1976-12-07 Package Machinery Company Continuous web supply system
IT1060326B (en) * 1976-04-27 1982-07-10 Carle E Montanari Spa DEVICE TO ENSURE THE CONTINUITY OF THE WRAPPING MATERIAL IN THE REEL OF THE WRAPPING MACHINES

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE516619C (en) * 1929-02-11 1931-01-24 Anciens Etablissements L Chamb Method for setting a paper web
DE1123898B (en) * 1956-07-26 1962-02-15 Champlain Company Inc Device for connecting butt joint ends of the web

Also Published As

Publication number Publication date
DE2906567C2 (en) 1983-03-10
DE2906567A1 (en) 1980-08-28
DD149200A1 (en) 1981-07-01
GB2053161A (en) 1981-02-04
JPS56500213A (en) 1981-02-26
GB2053161B (en) 1983-01-26
SE8007385L (en) 1980-10-21

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