EP1155986B1 - Device for forming a stream of sheets partially overlapping each other - Google Patents

Device for forming a stream of sheets partially overlapping each other Download PDF

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Publication number
EP1155986B1
EP1155986B1 EP01110013A EP01110013A EP1155986B1 EP 1155986 B1 EP1155986 B1 EP 1155986B1 EP 01110013 A EP01110013 A EP 01110013A EP 01110013 A EP01110013 A EP 01110013A EP 1155986 B1 EP1155986 B1 EP 1155986B1
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EP
European Patent Office
Prior art keywords
roller
sheet
intermittently operated
actuating
conveying roller
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
EP01110013A
Other languages
German (de)
French (fr)
Other versions
EP1155986A2 (en
EP1155986A3 (en
Inventor
Bernd Ullrich
Franz Dipl.-Ing. Vogel
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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Publication date
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Publication of EP1155986A2 publication Critical patent/EP1155986A2/en
Publication of EP1155986A3 publication Critical patent/EP1155986A3/en
Application granted granted Critical
Publication of EP1155986B1 publication Critical patent/EP1155986B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/24—Feeding articles in overlapping streams, i.e. by separation of articles from a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
    • B65H2404/1442—Tripping arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • 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 forming a sheet flow of scaly partially overlapping arch, the one Sheet processing machine, especially a printing press, in Working cycle of the sheet processing machine can be fed, with a rotatable drivable conveyor roller and arranged above free rotatably mounted Taktrolle, between which occasionally arriving Arch detectable and together with the already formed arc current are goourbar, wherein to push a scattered incoming Arch under the already between the control roller and conveyor roller located last arc of the arc current, the clock role in the power stroke the sheet processing machine can be lifted off the conveyor roller as well can be driven lowered onto the conveyor roller, wherein the time of the lowering movement the clock role during a work cycle variably adjustable is.
  • From DE 26 29 347 A is an apparatus for forming a sheet flow known with a control arrangement in which the correct or incorrect placement of the control roller of a clock roller device of bows detected to arc of the arc current and according to the control arrangement a correction of the clock roller device takes place so long until it is set correctly.
  • From DE 197 55 519 A is a device for feeding single sheets to a downstream sheet processing machine with a Cycle roller known.
  • An advance or lag in the function of Stroke roll is uniform for all sheets of the arc current.
  • From DE 515 215 C is an adjusting device for clock rollers of sheet feeding devices known, in which by means of a screw the Time of the beginning of a promotion of the bow forward or backward is. This is then done for all arc of the arc current, the single-arc current is.
  • From DE 297 04 796 U is an apparatus for forming a sheet flow of scaly partially overlapping arch, the one Sheet processing machine, especially a printing press, in Working cycle of sheet-processing machine can be fed.
  • About one rotatably driven conveyor roller is a freely rotatably mounted Taktrolle arranged between which occasionally incoming bow detectable and knowerbar together with an already formed sheet stream are.
  • Taktrolle a freely rotatably mounted Taktrolle arranged between which occasionally incoming bow detectable and knowerbar together with an already formed sheet stream are.
  • the clock role in the working cycle of the arc processing machine can be lifted off the conveyor roller as well as on the Feed roller can be lowered driven.
  • the object of the invention is a device of the type mentioned to create a secure, accurate transport of all the bow's of the Arc current allows.
  • This object is achieved in that the time the lowering movement of the clock roller in the working cycle of a conveyor roller and Taktrolle role of the first arc of a bow current leading the time of lowering the clock speed in the power stroke of the first sheet following working cycles of the following sheets is adjustable.
  • the temporally different loading of the first sheet be compensated for a sheet flow over the next sheet.
  • the time of the lowering movement and / or the Lifting movement manually adjustable.
  • the adjusting device of a control unit is controllable, preferably a manually adjustable adjustment having.
  • the adjusting device is a control device that moves the clock roller approximately vertically, this supports the accuracy of the moment of lifting from the bow or putting on the bow.
  • the adjusting device can be a positioning cylinder have, in which a pneumatically actuated piston displaced is arranged, the piston rod at its from the actuating cylinder outstanding free end carries the freely rotatable control roller, preferably the piston, the clock roller on the conveyor roller lowered pneumatically can be acted upon.
  • the adjusting device having an actuating cylinder, in which a pneumatically acted upon Piston is slidably disposed, the piston rod on her off the actuating cylinder protruding end attached to a stationary holder is and wherein the displaceable on the piston rod actuating cylinder carries the freely rotatable control roller.
  • the adjusting device is at a parallel over the Conveyor roller arranged extending traverse.
  • the device shown in the figures shows a sheet stack 1, from by a suction head, not shown, the topmost sheet the sheet stack 1 is raised and with its leading edge in the conveying direction 2 on the in the power stroke also in the conveying direction 2 tending Sheet flap 3 a rotatably driven conveyor roller 4 is supplied becomes.
  • the conveyor roller 4 is both an adjusting device 5 for lifting and Lowering a freely rotatable clock roller 6 as well as a Doppelbogenabfühlvorraum 7 with an attachable to the conveyor roller 4 sensor roller 8 arranged.
  • the adjusting device 5 is at a parallel approximately above the conveyor roller 4 extending traverse 9 arranged while the Doppelbogenabfühlvorides 7 at a likewise approximately parallel over the conveyor roller 4 extending pivotally driven pivot shaft 10 is arranged is.
  • the adjusting device 5 has a holder 11, with which they on the traverse 9 is attached. On the holder 11 is a positioning cylinder 12 with his attached to the upper end.
  • the roller holder 15 is opposite to the guide rod 30 enclosing Compression spring 14, with one end on the holder 11 and with the other End is supported on the roller holder 15, on the conveyor roller 4 to spring-loaded.
  • roller holder 15 At the protruding from the lower end of the adjusting cylinder 12 end a piston rod 13, the roller holder 15 is fixed, which has an axis 16, on which the clock roller 6 is freely rotatably mounted.
  • the actuating cylinder 12 has an air connection 17 and at its upper end an air connection 28, from which a solenoid valve 18, a vacuum line 19 and a vacuum line 29 lead to a vacuum source 20.
  • the solenoid valve 18 is from a control unit 21 between a vacuum source 20 with the air connection 17 or the air connection 28 connecting position adjustable. With negative pressure of the air connection 28 the piston in the actuating cylinder 12 is acted upon in such a way that this counter the force of the compression spring 14 is raised, so that the clock roller. 6 lifts off the conveyor roller 4.
  • the air connection 17 via the Solenoid valve 18 is connected to the outside air.
  • the solenoid valve 18 due to appropriate control by the control unit 21 switches, the negative pressure source 20 with the Air connection 17 connected and the air connection 28 by connecting with the outside air is ventilated. This causes the negative pressure on with the air connection 17 connected side of the piston together with the Compression spring 14 the adjusting cylinder 12 down and the clock roller 6 on the Conveyor roller 4 presses.
  • the times of the lowering movement and the lifting movement of the control roller 6 are by means of a manual adjustment device 22 on the control device 21 adjustable so that the time of lowering movement of the Clock roller 6 in the working cycle of the conveyor roller 4 and 6 clock roller detected first arc of a bow current compared to the time of lowering the clock roller 6 in the working stroke of the first sheet following Working cycles of the following arc leads.
  • the Doppelbogenabfssel responded 7 has a about a pivot axis 24 pivotable pivot lever 23, at one free end of the Sensor roller 8 is freely rotatably mounted and the other free end a switch 25 is actuated. Both the switch 25 and the Pivot axis 24 are arranged on a holder 26 which on the Pivot shaft 10 is attached.
  • the feeler roller 8 In the lowered position, the feeler roller 8 is at a distance which corresponds to the nominal arc flow thickness in the region of the conveying roller 4. If one or more sheets fed too much, the increased Bogenstromdicke and the feeler roller 8 is opposite to a Swivel lever 23 acted upon compression spring 27 is raised. In order to raises the other lever arm of the pivot lever 23 of the switch 25th so that it triggers a signal through which e.g. the production operation is interrupted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Protection Of Plants (AREA)
  • Soil Working Implements (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Registering Or Overturning Sheets (AREA)

Abstract

The device has a rotatably driven feed roller (4) and a freely rotatable timing roller (6) above it, between which single incoming sheets can be acquired and transported with an existing sheet flow. The timing roller is raised and lowered in time with the machine's working cycle to enable arriving sheets to be inserted beneath the last sheet of the flow. Times of timing roller raising and/or lowering motions can be varied during a working cycle. The device has a rotatably driven feed roller (4) and a freely rotatable timing roller (6) above it, between which single incoming sheets can be acquired and transported with an already produced sheet flow, whereby the timing roller is raised and lowered in time with the working cycle of the machine to enable the incident sheet to be inserted beneath the last sheet of the existing flow. The time of the timing roller raising and/or lowering motion can be set variably during a working cycle.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Bilden eines Bogenstroms von sich schuppenartig teilweise überdeckenden Bogen, die einer Bogen verarbeitenden Maschine, insbesondere einer Druckmaschine, im Arbeitstakt der Bogen verarbeitenden Maschine zuführbar sind, mit einer drehbar antreibbaren Förderwalze und einer darüber angeordneten frei drehbar gelagerten Taktrolle, zwischen denen vereinzelt ankommende Bogen erfaßbar und zusammen mit dem bereits gebildeten Bogenstrom weiterförderbar sind, wobei zum Unterschieben eines vereinzelt ankommenden Bogens unter den bereits zwischen Taktrolle und Förderwalze befindlichen letzten Bogen des Bogenstroms die Taktrolle im Arbeitstakt der Bogen verarbeitenden Maschine von der Förderwalze abhebbar sowie auf die Förderwalze absenkbar antreibbar ist, wobei der Zeitpunkt der Absenkbewegung der Taktrolle während eines Arbeitstakts variabel einstellbar ist.The invention relates to a device for forming a sheet flow of scaly partially overlapping arch, the one Sheet processing machine, especially a printing press, in Working cycle of the sheet processing machine can be fed, with a rotatable drivable conveyor roller and arranged above free rotatably mounted Taktrolle, between which occasionally arriving Arch detectable and together with the already formed arc current are weiterförderbar, wherein to push a scattered incoming Arch under the already between the control roller and conveyor roller located last arc of the arc current, the clock role in the power stroke the sheet processing machine can be lifted off the conveyor roller as well can be driven lowered onto the conveyor roller, wherein the time of the lowering movement the clock role during a work cycle variably adjustable is.

Bei Vorrichtungen der eingangs genannten Art erfolgt die Absenkbewegung der Taktrolle immer zu denselben Zeitpunkten während der Arbeitstakte. Dies führt dazu, daß zu Beginn eines neuen Bogenstroms die Taktrolle bei dem ersten Bogen des Bogenstroms einen größeren Weg der Absenkbewegung durchführen muß als bei den folgenden Bogen des Bogenstroms. Dies liegt daran, daß der erste Bogen noch nicht von einem Folgebogen unterschuppt ist, während die folgenden Bogen unterschuppt werden. Dies macht sich besonders nachteilig bei der Förderung von Bogen einer Dicke von z.B. mehr als 1,0 mm bemerkbar, da das gegenüber dem ersten Bogen frühere Aufsetzen der Taktrolle auf die folgenden Bogen sowie das spätere Abheben von den folgenden Bogen keinen sicheren, paßgenauen Transport aller Bogen des Bogenstroms ermöglicht.In devices of the type mentioned above, the lowering movement takes place the clock role always at the same times during the power strokes. This leads to the beginning of a new arc current the Taktrolle at the first arc of the arc current a greater way must perform the lowering movement as in the following arc of the Arc current. This is because the first sheet is not yet one Subsequent bend is submerged, while the following bow underfoot become. This is particularly disadvantageous in the promotion of bow a thickness of e.g. more than 1.0 mm noticeable, because the opposite the first sheet former touch roll on the following bow as well as later lifting off the following bows no safe, precisely fitting transport of all sheets of the arc current allows.

Aus der DE 26 29 347 A ist eine Vorrichtung zum Bilden eines Bogenstroms mit einer Steuerungsanordnung bekannt, bei der das korrekte oder nicht korrekte Aufsetzen der Taktrolle einer Taktrollenvorrichtung von Bogen zu Bogen des Bogenstroms erfaßt und entsprechend von der Steuerungsanordnung eine Korrektur der Taktrollenvorrichtung so lange erfolgt, bis diese korrekt eingestellt ist.From DE 26 29 347 A is an apparatus for forming a sheet flow known with a control arrangement in which the correct or incorrect placement of the control roller of a clock roller device of bows detected to arc of the arc current and according to the control arrangement a correction of the clock roller device takes place so long until it is set correctly.

Aus der DE 197 55 519 A ist eine Vorrichtung zum Zuführen von Einzelbogen zu einer nachgeordneten Bogen verarbeitenden Maschine mit einer Taktwalze bekannt. Eine Voreilung oder Nacheilung der Funktion der Taktwalze erfolgt für alle Bogen des Bogenstroms einheitlich.From DE 197 55 519 A is a device for feeding single sheets to a downstream sheet processing machine with a Cycle roller known. An advance or lag in the function of Stroke roll is uniform for all sheets of the arc current.

Aus der DE 515 215 C ist eine Stellvorrichtung für Taktrollen von Bogenzuführungsvorrichtungen bekannt, bei der mittels einer Stellschraube der Zeitpunkt des Beginns einer Förderung der Bogen vor- oder zurückstellbar ist. Dies erfolgt dann für alle Bogen des Bogenstromes, der ein Einzelbogenstrom ist.From DE 515 215 C is an adjusting device for clock rollers of sheet feeding devices known, in which by means of a screw the Time of the beginning of a promotion of the bow forward or backward is. This is then done for all arc of the arc current, the single-arc current is.

Aus der DE 297 04 796 U ist eine Vorrichtung zum Bilden eines Bogenstroms von sich schuppenartig teilweise überdeckenden Bogen, die einer Bogen verarbeitenden Maschine, insbesondere einer Druckmaschine, im Arbeitstakt der Bogen verarbeitenden Maschine zuführbar sind. Über einer drehbar antreibbaren Förderwalze sind ist eine frei drehbar gelagerte Taktrolle angeordnet, zwischen denen vereinzelt ankommende Bogen erfaßbar und zusammen mit einem bereits gebildeten Bogenstrom weiterförderbar sind. Zum Unterschieben eines vereinzelt ankommenden Bogens unter den bereits zwischen Taktrolle und Förderwalze befindlichen letzten Bogen des Bogenstroms ist die Taktrolle im Arbeitstakt der Bogen verarbeitenden Maschine von der Förderwalze abhebbar sowie auf die Förderwalze absenkbar antreibbar.From DE 297 04 796 U is an apparatus for forming a sheet flow of scaly partially overlapping arch, the one Sheet processing machine, especially a printing press, in Working cycle of sheet-processing machine can be fed. About one rotatably driven conveyor roller is a freely rotatably mounted Taktrolle arranged between which occasionally incoming bow detectable and weiterförderbar together with an already formed sheet stream are. For pushing a singly arriving bow among those already located between the control roller and conveyor roller last arc of the arc current is the clock role in the working cycle of the arc processing machine can be lifted off the conveyor roller as well as on the Feed roller can be lowered driven.

Aufgabe der Erfindung ist es eine Vorrichtung der eingangs genannten Art zu schaffen, die einen sicheren, paßgenauen Transport aller Bogen des Bogenstroms ermöglicht. The object of the invention is a device of the type mentioned to create a secure, accurate transport of all the bow's of the Arc current allows.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Zeitpunkt der Absenkbewegung der Taktrolle im Arbeitstakt eines von Förderwalze und Taktrolle erfaßten ersten Bogens eines Bogenstroms voreilend gegenüber dem Zeitpunkt der Absenkung der Taktrolle in den dem Arbeitstakt des ersten Bogens folgenden Arbeitstakten der folgenden Bogen einstellbar ist.This object is achieved in that the time the lowering movement of the clock roller in the working cycle of a conveyor roller and Taktrolle role of the first arc of a bow current leading the time of lowering the clock speed in the power stroke of the first sheet following working cycles of the following sheets is adjustable.

Dadurch kann das zeitlich unterschiedliche Beaufschlagen des ersten Bogens eines Bogenstroms gegenüber den Folgebogen ausgeglichen werden.As a result, the temporally different loading of the first sheet be compensated for a sheet flow over the next sheet.

Dazu sind vorzugsweise der Zeitpunkt der Absenkbewegung und/oder der Anhubbewegung manuell einstellbar.For this purpose, preferably the time of the lowering movement and / or the Lifting movement manually adjustable.

Eine exakte und schnelle Absenkung und Anhebung der Taktrollen wird dadurch erreicht, daß die Taktrolle von einer pneumatisch, magnetisch oder elektrisch betätigbaren Stellvorrichtung auf die Förderwalze absenkbar und/oder von der Förderwalze abhebbar ist.An exact and fast lowering and raising the clock speeds will achieved in that the clock roller of a pneumatic, magnetic or electrically actuable adjusting device lowered onto the conveyor roller and / or can be lifted off the conveyor roller.

Besonders exakte Zeitpunkte für die Anhub- und Absenkbewegung werden dadurch erreicht, daß die Stellvorrichtung von einer Steuereinheit an steuerbar ist, die vorzugsweise eine manuell einstellbare Einstellvorrichtung aufweist. Especially exact times for the lifting and lowering movement are achieved in that the adjusting device of a control unit is controllable, preferably a manually adjustable adjustment having.

Ist die Stellvorrichtung eine die Taktrolle etwa vertikal bewegende Stellvorrichtung, so unterstützt dies die Exaktheit des Zeitpunkts des Anhebens vom Bogen bzw. des Aufsetzens auf den Bogen.If the adjusting device is a control device that moves the clock roller approximately vertically, this supports the accuracy of the moment of lifting from the bow or putting on the bow.

In einer einfachen Ausbildung kann die Stellvorrichtung einen Stellzylinder aufweisen, in dem ein pneumatisch beaufschlagbarer Kolben verschiebbar angeordnet ist, dessen Kolbenstange an ihrem aus dem Stellzylinder herausragenden freien Ende die frei drehbare Taktrolle trägt, wobei vorzugsweise der Kolben die Taktrolle auf die Förderwalze absenkbar pneumatisch beaufschlagbar ist.In a simple embodiment, the adjusting device can be a positioning cylinder have, in which a pneumatically actuated piston displaced is arranged, the piston rod at its from the actuating cylinder outstanding free end carries the freely rotatable control roller, preferably the piston, the clock roller on the conveyor roller lowered pneumatically can be acted upon.

Eine weitere einfache Ausbildung besteht darin, daß die Stellvorrichtung einen Stellzylinder aufweist, in dem ein pneumatisch beaufschlagbarer Kolben verschiebbar angeordnet ist, dessen Kolbenstange an ihrem aus dem Stellzylinder herausragenden Ende an einem ortsfesten Halter befestigt ist und wobei der auf der Kolbenstange verschiebbare Stellzylinder die frei drehbare Taktrolle trägt.Another simple training is that the adjusting device having an actuating cylinder, in which a pneumatically acted upon Piston is slidably disposed, the piston rod on her off the actuating cylinder protruding end attached to a stationary holder is and wherein the displaceable on the piston rod actuating cylinder carries the freely rotatable control roller.

Damit die Stellvorrichtung mit ihrer Taktrolle exakt zur Förderwalze positioniert werden kann, ist die Stellvorrichtung an einer parallel über der Förderwalze sich erstreckenden Traverse angeordnet. So that the adjusting device with its clock roller positioned exactly to the feed roller can be, the adjusting device is at a parallel over the Conveyor roller arranged extending traverse.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen

Figur 1
eine Ansicht der Vorrichtung in Förderrichung zusammen mit einer Doppelbogenabfühlvorrichtung
Figur 2
eine Seitenansicht der Vorrichtung nach Figur 1
Figur 3
eine Seitenansicht der Doppelbogenabfühlvorrichtung nach Figur 1.
An embodiment of the invention is illustrated in the drawing and will be described in more detail below. Show it
FIG. 1
a view of the device in conveying direction together with a Doppelbogenabfühlvorrichtung
FIG. 2
a side view of the device of Figure 1
FIG. 3
a side view of the Doppelbogenabfühlvorrichtung of Figure 1.

Die in den Figuren dargestellte Vorrichtung zeigt einen Bogenstapel 1, von dem durch einen nicht dargestellten Saugkopf der jeweils oberste Bogen des Bogenstapels 1 angehoben und mit seiner Vorderkante in Förderrichtung 2 über die im Arbeitstakt sich ebenfalls in Förderrichtung 2 neigende Bogenklappe 3 einer drehbar angetriebenen Förderwalze 4 zugeführt wird.The device shown in the figures shows a sheet stack 1, from by a suction head, not shown, the topmost sheet the sheet stack 1 is raised and with its leading edge in the conveying direction 2 on the in the power stroke also in the conveying direction 2 tending Sheet flap 3 a rotatably driven conveyor roller 4 is supplied becomes.

Über der Förderwalze 4 ist sowohl eine Stelleinrichtung 5 zum Heben und Senken einer frei drehbaren Taktrolle 6 als auch eine Doppelbogenabfühlvorrichtung 7 mit einer auf die Förderwalze 4 aufsetzbaren Fühlerrolle 8 angeordnet. About the conveyor roller 4 is both an adjusting device 5 for lifting and Lowering a freely rotatable clock roller 6 as well as a Doppelbogenabfühlvorrichtung 7 with an attachable to the conveyor roller 4 sensor roller 8 arranged.

Die Stelleinrichtung 5 ist dabei an einer parallel etwa über der Förderwalze 4 sich erstreckenden Traverse 9 angeordnet, während die Doppelbogenabfühlvorrichtung 7 an einer sich ebenfalls etwa parallel über der Förderwalze 4 erstreckenden schwenkbar antreibbaren Schwenkwelle 10 angeordnet ist.The adjusting device 5 is at a parallel approximately above the conveyor roller 4 extending traverse 9 arranged while the Doppelbogenabfühlvorrichtung 7 at a likewise approximately parallel over the conveyor roller 4 extending pivotally driven pivot shaft 10 is arranged is.

Die Stelleinrichtung 5 weist einen Halter 11 auf, mit dem sie an der Traverse 9 befestigt ist. An dem Halter 11 ist ein Stellzylinder 12 mit seinem oberen Ende befestigt.The adjusting device 5 has a holder 11, with which they on the traverse 9 is attached. On the holder 11 is a positioning cylinder 12 with his attached to the upper end.

Weiterhin ist an dem Halter 11 eine Führungsstange 30 mit ihrem oberen Endbereich vertikal verschiebbar geführt, die mit ihrem unteren Ende an einem Rollenhalter 15 befestigt ist.Furthermore, on the holder 11, a guide rod 30 with its upper End region guided vertically displaceable, with its lower end a reel holder 15 is attached.

Der Rollenhalter 15 ist entgegen einer die Führungsstange 30 umschließenden Druckfeder 14, die mit einem Ende am Halter 11 und mit dem anderen Ende am Rollenhalter 15 abgestützt ist, auf die Förderwalze 4 zu federbeaufschlagt.The roller holder 15 is opposite to the guide rod 30 enclosing Compression spring 14, with one end on the holder 11 and with the other End is supported on the roller holder 15, on the conveyor roller 4 to spring-loaded.

An dem aus dem unteren Ende des Stellzylinders 12 herausragenden Ende einer Kolbenstange 13 ist der Rollenhalter 15 befestigt, der eine Achse 16 aufweist, auf der die Taktrolle 6 frei drehbar gelagert ist. At the protruding from the lower end of the adjusting cylinder 12 end a piston rod 13, the roller holder 15 is fixed, which has an axis 16, on which the clock roller 6 is freely rotatably mounted.

An seinem unteren Endbereich besitzt der Stellzylinder 12 einen Luftanschluß 17 und an seinem oberen Endbereich einen Luftanschluß 28, von denen über ein Magnetventil 18 eine Unterdruckleitung 19 und eine Unterdruckleitung 29 zu einer Unterdruckquelle 20 führen. Das Magnetventil 18 ist von einer Steuereinheit 21 zwischen einer die Unterdruckquelle 20 mit dem Luftanschluß 17 oder dem Luftanschluß 28 verbindenden Stellung verstellbar. Bei Unterdruckbeaufschlagung des Luftanschlusses 28 wird der Kolben im Stellzylinder 12 derart beaufschlagt, daß dieser entgegen der Kraft der Druckfeder 14 angehoben wird, so daß die Taktrolle 6 von der Förderwalze 4 abhebt. Dabei ist der Luftanschluß 17 über das Magnetventil 18 mit der Außenluft verbunden.At its lower end, the actuating cylinder 12 has an air connection 17 and at its upper end an air connection 28, from which a solenoid valve 18, a vacuum line 19 and a vacuum line 29 lead to a vacuum source 20. The solenoid valve 18 is from a control unit 21 between a vacuum source 20 with the air connection 17 or the air connection 28 connecting position adjustable. With negative pressure of the air connection 28 the piston in the actuating cylinder 12 is acted upon in such a way that this counter the force of the compression spring 14 is raised, so that the clock roller. 6 lifts off the conveyor roller 4. In this case, the air connection 17 via the Solenoid valve 18 is connected to the outside air.

Dies erfolgt dann, wenn ein weiterer Bogen vom Bogenstapel 1 her der Förderwalze 4 zugeführt wird.This takes place when another sheet from the sheet stack 1 forth Feed roller 4 is supplied.

Sobald das Magnetventil 18 aufgrund entsprechender Ansteuerung durch die Steuereinheit 21 umschaltet, wird die Unterdruckquelle 20 mit dem Luftanschluß 17 verbunden und der Luftanschluß 28 durch Verbinden mit der Außenluft belüftet. Dies führt dazu, daß der Unterdruck auf der mit dem Luftanschluß 17 verbundenen Seite des Kolbens zusammen mit der Druckfeder 14 den Stellzylinder 12 nach unten und die Taktrolle 6 auf die Förderwalze 4 drückt. Once the solenoid valve 18 due to appropriate control by the control unit 21 switches, the negative pressure source 20 with the Air connection 17 connected and the air connection 28 by connecting with the outside air is ventilated. This causes the negative pressure on with the air connection 17 connected side of the piston together with the Compression spring 14 the adjusting cylinder 12 down and the clock roller 6 on the Conveyor roller 4 presses.

Es versteht sich, daß der Stellzylinder anstatt mit Unterdruck auf äquivalente Weise auch mit Überdruck betrieben werden kann.It is understood that the actuating cylinder instead of negative pressure to equivalent Way can also be operated with positive pressure.

Sobald die Förderwalze den neu angekommenen Bogen über den vorhergehenden Bogen auf die Förderwalze 4 drückt, wird dieser Bogen durch die drehbar angetriebene Förderwalze 4 in Förderrichtung 2 weiterbefördert.Once the conveyor roller the newly arrived bow over the previous one Press sheet on the conveyor roller 4, this arc is through the rotatably driven conveyor roller 4 is conveyed in the conveying direction 2.

Die Zeitpunkte der Absenkbewegung und der Anhubbewegung der Taktrolle 6 sind mittels einer manuellen Einstellvorrichtung 22 an der Steuereinrichtung 21 so einstellbar, daß der Zeitpunkt der Absenkbewegung der Taktrolle 6 im Arbeitstakt des von Förderwalze 4 und Taktrolle 6 erfaßten ersten Bogens eines Bogenstroms gegenüber dem Zeitpunkt der Absenkung der Taktrolle 6 in den dem Arbeitstakt des ersten Bogens folgenden Arbeitstakten der folgenden Bogen voreilt.The times of the lowering movement and the lifting movement of the control roller 6 are by means of a manual adjustment device 22 on the control device 21 adjustable so that the time of lowering movement of the Clock roller 6 in the working cycle of the conveyor roller 4 and 6 clock roller detected first arc of a bow current compared to the time of lowering the clock roller 6 in the working stroke of the first sheet following Working cycles of the following arc leads.

Damit wird der vom Stellzylinder 12 größere zu überwindende Weg bis zum Aufsetzen auf den ersten Bogen des Bogenstroms derart ausgeglichen, daß die Taktrolle 4 zum gleichen Zeitpunkt im Arbeitstakt des ersten Bogens auf diesen aufsetzt wie auf den folgenden Bogen in deren Arbeitstakten, bei denen der Stellzylinder 12 einen um eine Bogendicke kürzeren Weg zu überwinden hat. This is the larger of the actuating cylinder 12 to be overcome way balanced for placement on the first arc of the arc current, that the clock roller 4 at the same time in the power stroke of the first Bow on top of them as on the following sheets in their working cycles, in which the actuating cylinder 12 a shorter by an arc thickness Way to overcome.

Die Doppelbogenabfühleinrichtung 7 weist einen um eine Schwenkachse 24 schwenkbaren Schwenkhebel 23 auf, an dessen einem freien Ende die Fühlerrolle 8 frei drehbar gelagert ist und von dessen anderem freien Ende ein Schalter 25 betätigbar ist. Sowohl der Schalter 25 als auch die Schwenkachse 24 sind an einem Halter 26 angeordnet, der auf der Schwenkwelle 10 befestigt ist.The Doppelbogenabfühleinrichtung 7 has a about a pivot axis 24 pivotable pivot lever 23, at one free end of the Sensor roller 8 is freely rotatably mounted and the other free end a switch 25 is actuated. Both the switch 25 and the Pivot axis 24 are arranged on a holder 26 which on the Pivot shaft 10 is attached.

Von der Schwenkwelle 10 wird der Halter 26 und damit auch der Schwenkhebel 23 und die Fühlerrolle 8 derart im Arbeitstakt verschwenkt, daß die Fühlerrolle 8 sich nur während des Zuführens eines neuen Bogens in der dargestellten abgesenkten Position befindet und anschließend von der Förderwalze 4 ein Stück abgehoben ist.Of the pivot shaft 10 of the holder 26 and thus also the Pivot lever 23 and the feeler roller 8 pivoted in the power stroke, that the feeler roller 8 only during the feeding of a new sheet is in the illustrated lowered position and then lifted from the conveyor roller 4 a piece.

In der abgesenkten Stellung befindet sich die Fühlerrolle 8 in einem Abstand, der der Sollbogenstromdicke im Bereich der Förderwalze 4 entspricht. Werden ein oder mehrere Bogen zuviel zugeführt, erhöht sich die Bogenstromdicke und die Fühlerrolle 8 wird entgegen einer den Schwenkhebel 23 beaufschlagenden Druckfeder 27 angehoben. Damit hebt der andere Hebelarm des Schwenkhebels 23 von dem Schalter 25 ab, so daß dieser ein Signal auslöst, durch das z.B. der Förderbetrieb unterbrochen wird. In the lowered position, the feeler roller 8 is at a distance which corresponds to the nominal arc flow thickness in the region of the conveying roller 4. If one or more sheets fed too much, the increased Bogenstromdicke and the feeler roller 8 is opposite to a Swivel lever 23 acted upon compression spring 27 is raised. In order to raises the other lever arm of the pivot lever 23 of the switch 25th so that it triggers a signal through which e.g. the production operation is interrupted.

Da die Stelleinrichtung 5 auf einer Traverse 9 unabhängig von der Schwenkwelle 10 der Doppelbogenabfühlvorrichtung 7 angeordnet ist, können die Absenk- und Anhubbewegungen der Stelleinrichtung 5 auch unabhängig von den Schwenkbewegungen der Schwenkwelle 10 und somit jeweils optimal eingestellt werden. Since the adjusting device 5 on a traverse 9 regardless of the Pivot shaft 10 of the double-bow sensing device 7 is arranged, can the lowering and lifting movements of the adjusting device 5 also independent of the pivoting movements of the pivot shaft 10 and thus each be set optimally.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Bogenstapelsheet pile
22
Fördervorrichtungconveyor
33
Vordermarkefront lay
44
Förderwalzeconveyor roller
55
Stellvorrichtunglocking device
66
Taktrollesynchronizing roller
77
DoppelbogenabfühlvorrichtungDoppelbogenabfühlvorrichtung
88th
Fühlerrolleprobe role
99
Traversetraverse
1010
Schwenkwellepivot shaft
1111
Halterholder
1212
Stellzylinderactuating cylinder
1313
Kolbenstangepiston rod
1414
Druckfedercompression spring
1515
Rollenhalterroll holder
1616
Achseaxis
1717
Luftanschlußair connection
1818
Magnetventilmagnetic valve
1919
UnterdruckleitungVacuum line
2020
UnterdruckquelleVacuum source
2121
Steuereinheitcontrol unit
2222
Einstellvorrichtungadjustment
2323
Schwenkhebelpivoting lever
2424
Schwenkachseswivel axis
2525
Schalterswitch
2626
Halterholder
2727
Druckfedercompression spring
2828
Luftanschlußair connection
2929
UnterdruckleitungVacuum line
3030
Führungsstangeguide rod

Claims (10)

  1. Apparatus for forming a sheet stream of sheets which partially overlap in an imbricated manner and can be fed to a sheet-processing machine, in particular a printing press, at the working cycle of the sheet processing machine, having a conveying roller (4) which can be driven in rotation and an intermittently operated roller (6) which is arranged above the former and mounted so as to be freely rotatable, between which rollers (4, 6) sheets which arrive individually can be gripped and conveyed further together with the already formed sheet stream, it being possible to drive the intermittently operated roller (6) at the working cycle of the sheet processing machine such that it can be lifted off from the conveying roller (4) and lowered onto the conveying roller (4), in order to push a sheet which arrives individually under the last sheet of the sheet stream, which last sheet is already situated between the intermittently operated roller (6) and the conveying roller (4), it being possible to variably set the instant of the lowering movement of the intermittently operated roller (6) during a working cycle, characterized in that the instant of the lowering movement of the intermittently operated roller (6) at the working cycle of a first sheet of a sheet stream, which first sheet is gripped by the conveying roller (4) and the intermittently operated roller (6), can be set so as to lead in comparison with the instant of the lowering of the intermittently operated roller (6) at the working cycles of the following sheets, which working cycles follow the working cycle of the first sheet.
  2. Apparatus according to one of the preceding claims, characterized in that the instant of the lowering movement and/or the raising movement can be set manually.
  3. Apparatus according to one of the preceding claims, characterized in that the intermittently operated roller (6) can be lowered onto the conveying roller (4) and/or lifted off from the conveying roller (4) by an actuating apparatus (5) which can be actuated pneumatically, magnetically or electrically.
  4. Apparatus according to Claim 3, characterized in that the actuating apparatus (5) can be activated by a control unit (21).
  5. Apparatus according to Claim 4, characterized in that the control unit (21) has a setting apparatus (22) which can be set manually.
  6. Apparatus according to one of the preceding claims, characterized in that the actuating apparatus is an actuating apparatus (5) which moves the intermittently operated roller approximately vertically.
  7. Apparatus according to one of the preceding claims, characterized in that the actuating apparatus (5) has an actuating cylinder (12) in which a piston is arranged displaceably which can be acted on pneumatically, the piston rod (13) of the said piston bearing the freely rotatable intermittently operated roller (6) at its free end which protrudes out of the actuating cylinder (12).
  8. Apparatus according to one of Claims 1 to 6, characterized in that the actuating apparatus has an actuating cylinder in which a piston is arranged displaceably which can be acted on pneumatically, the piston rod of the said piston being fastened, at its end which protrudes out of the actuating cylinder, to a stationary holder, and the actuating cylinder which can be displaced on the piston rod bearing the freely rotatable intermittently operated roller.
  9. Apparatus according to Claim 7 or 8, characterized in that the piston can be acted on pneumatically in a manner which lowers the intermittently operated roller (6) onto the conveying roller (4).
  10. Apparatus according to one of the preceding claims, characterized in that the actuating apparatus (5) is arranged on a crossmember (9) which extends in parallel above the conveying roller (4).
EP01110013A 2000-05-16 2001-04-26 Device for forming a stream of sheets partially overlapping each other Expired - Lifetime EP1155986B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10024018 2000-05-16
DE10024018A DE10024018B4 (en) 2000-05-16 2000-05-16 Apparatus for forming a bow stream of scale-like partially overlapping sheets

Publications (3)

Publication Number Publication Date
EP1155986A2 EP1155986A2 (en) 2001-11-21
EP1155986A3 EP1155986A3 (en) 2004-01-14
EP1155986B1 true EP1155986B1 (en) 2005-08-03

Family

ID=7642292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01110013A Expired - Lifetime EP1155986B1 (en) 2000-05-16 2001-04-26 Device for forming a stream of sheets partially overlapping each other

Country Status (3)

Country Link
EP (1) EP1155986B1 (en)
AT (1) ATE301097T1 (en)
DE (2) DE10024018B4 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258416A1 (en) * 2002-12-13 2004-06-24 Koenig & Bauer Ag Sheet feeder arrangement for a printing or copying machine, has cyclic rollers that are positioned independently of each other on a transport roller and at individually adjustable point
US7407161B2 (en) * 2003-10-01 2008-08-05 Fpna Acquisition Corporation Method of and assembly for lapping consecutive sheets of web material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE515215C (en) * 1930-12-24 Rockstroh Werke Akt Ges Adjusting device for the timing rollers of sheet feed devices
DE2127757C3 (en) * 1970-06-05 1982-05-27 Società Nebioli S.p.A., Torino Multi-sheet scanning and control device
DD123801A1 (en) * 1975-07-15 1977-01-19
DE4420186C2 (en) * 1994-06-09 1997-04-17 Heidelberger Druckmasch Ag Device for the external lifting of a transport roll in the feeder of a machine for sheet processing
DE29704796U1 (en) * 1997-03-15 1997-05-28 MAN Roland Druckmaschinen AG, 63075 Offenbach Feed table
DE19755519C2 (en) * 1997-12-13 2003-11-27 Koenig & Bauer Ag Device for feeding sheets

Also Published As

Publication number Publication date
EP1155986A2 (en) 2001-11-21
EP1155986A3 (en) 2004-01-14
ATE301097T1 (en) 2005-08-15
DE50106942D1 (en) 2005-09-08
DE10024018A1 (en) 2001-11-22
DE10024018B4 (en) 2006-05-24

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