EP0490216A1 - Sheet feeding device for copier or printer that processes sheets simultanously - Google Patents

Sheet feeding device for copier or printer that processes sheets simultanously Download PDF

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Publication number
EP0490216A1
EP0490216A1 EP91120693A EP91120693A EP0490216A1 EP 0490216 A1 EP0490216 A1 EP 0490216A1 EP 91120693 A EP91120693 A EP 91120693A EP 91120693 A EP91120693 A EP 91120693A EP 0490216 A1 EP0490216 A1 EP 0490216A1
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EP
European Patent Office
Prior art keywords
single sheets
paper transport
sheets
paper
receiving area
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.)
Granted
Application number
EP91120693A
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German (de)
French (fr)
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EP0490216B1 (en
Inventor
Klaus Dipl.-Ing. Kümmel
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.)
Canon Production Printing Germany GmbH and Co KG
Original Assignee
Wincor Nixdorf International GmbH
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Publication of EP0490216A1 publication Critical patent/EP0490216A1/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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/06—Movable stops or gauges, e.g. rising and falling front stops
    • 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
    • B65H5/26—Duplicate, alternate, selective, or coacting feeds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • B65H9/106—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using rotary driven elements as part acting on the article

Definitions

  • the invention relates to a device for the lateral feeding of single sheets to a paper transport channel of a printing or copying machine, which is designed for transporting a plurality of single sheets arranged side by side.
  • Printing or copying devices operating on the principle of electrophotography are generally known.
  • a charge image is generated on an intermediate carrier, developed with toner in a developer station and the toner image is transferred to a recording medium in a transfer printing station.
  • the toner images are fixed by pressure and heat in a fixing station arranged downstream of the transfer printing station.
  • Fusing stations are generally used, which consist of two fusing rollers, at least one of which is heated. The toner particles are melted into the recording medium by heat and pressure.
  • Such a printing device working with single sheets is such.
  • the individual sheets are taken from a storage area and fed serially to a printing channel of the printing device and processed there one after the other.
  • the storage area is part of the printing device itself and is aligned with the pressure channel.
  • a significant increase in printing speed results when two sheets are processed in parallel in the printing channel.
  • the single sheets must be drawn off in parallel from two stacks and fed parallel to the transport channel. This requires a lot of effort from the paper feed device.
  • the fill level of two storage containers must be monitored.
  • the arrangement of the storage area in the extension of the paper transport channel increases the overall length of the printing or copying machine.
  • the arrangement of the units of the electrophotographic process and their design are severely restricted.
  • the object of the invention is to provide a device of the type mentioned at the outset, which makes it possible to serially feed individual sheets laterally to a printing or copying machine which is designed for the parallel processing of single sheets in a paper transport channel.
  • the device should enable a high printing speed with exact positioning of the single sheets in the paper transport channel.
  • the device enables the individual sheets to be fed in from the side without reducing the processing speed during parallel processing of the single sheets.
  • the single sheets are precisely aligned and fed to the transfer area of the device, which increases the print quality.
  • An electrophotographic printing device for processing single sheets shown schematically in the figure, consists of a device part GT for receiving the units necessary for the electrophotographic process and the paper transport elements and a control part ST for receiving the control electronics.
  • the device part GT contains a paper transport channel 10 for transporting single sheets EB1, EB2 through the units necessary for the electrophotographic process.
  • These are essentially a transfer station 11, shown only schematically here, for printing on the individual sheets EB1 and EB2 in parallel operation with toner images and a fixing station 12 arranged downstream in the paper transport direction, comprising two fixing rollers, at least one of which is heated and between which the toner images are fixed on the individual sheets.
  • Transfer printing station 11 and fixing station 12 can be designed in accordance with WO 89/08282.
  • the transfer printing station 11 is arranged below the paper transport channel 10 and contains a transfer belt which applies the toner images to the underside of the individual sheets EB1 and EB2.
  • a device for lateral serial feeding of single sheets is assigned to the paper transport channel 10. It consists of a receiving area 13 for the single sheets arranged in the extension of the paper transport channel, into which a feed channel 14 for the single sheets opens, which runs essentially perpendicular to the paper transport channel 10. The single sheets are fed serially one after the other via the feed channel 14.
  • the feed area 14 has several, for example, two storage areas 15/1 and 15/2, which serve to receive the serially fed single sheets. They act as a buffer.
  • the storage areas 15/1 and 15/2 are each assigned stops 16 aligned in the paper transport channel direction (arrow) with associated alignment means 17 for aligning the individual sheets EB1 and EB2 on the stops.
  • these alignment means consist of two electrically driven paddle shafts, as are usually used for separating and aligning single sheets in printing devices.
  • the arranged in the feed direction of the single sheets EB1 and EB2 before the last stop 16/1 stop 16/2 is equipped with an electromagnetic drive 18, for. B. coupled to a motor or an electromagnet, via which it can be pivoted in and out of the receiving area 13.
  • the device has transport means which, after the individual sheets have been deposited in the storage area 13, collectively capture the individual sheets and feed them to the paper transport channel 10.
  • these transport means consist of a stationary upper paper transport roller 19 spanning the receiving area 13, which has a smooth surface and is driven by an electric motor, and a rubber counter roller 21 which can be swiveled in and out via a motor 20.
  • the counter-roller 21 is pivoted to the paper transport roller 19 by an electric motor and the individual sheets EB1 or EB2 lying therebetween are transported in the paper transport direction (arrow).
  • additional alignment means for the front side can be arranged downstream of the transport means (paper transport roller 19 and counter roller 21) in the paper transport direction Alignment of the single sheets EB1 and EB2 may be provided.
  • these consist of a pair of feed rollers 22 which, for. B. can have a hump roller for realigning the single sheets.
  • the individual sheets are aligned in such a way that when the pair of feed rollers 22 is stationary, the paper transport roller 19 in connection with the counter roller 21 is transported to the hump roller as far as it will go.
  • the feed channel 14 has transport rollers 23 for feeding the single sheets to the receiving area 13.
  • Feed channel 14 and transport rollers 23 are part of a paper supply area PV, which is used to hold the individual sheets to be printed which are stacked one on top of the other.
  • the paper supply area PV is designed as an independent, separate device which has transport rollers on the bottom. This makes it possible to load the paper supply area PV separately from the device and to bring the loaded paper supply area PV into the area of a feed opening 24 for the receiving area 13.
  • Mechanical fasteners e.g. B.
  • latches or other adjusting elements can be provided for aligning and fastening the paper supply area PV on the feed opening 24 on the paper supply area PV and on the device part GT, as well as an electrical connection for controlling the supply of the single sheets via the transport rollers 23 by the controller ST of the device.
  • the entire device works as follows: After coupling the paper supply area PV to the side feed opening 24 of the device GT and closing the corresponding coupling contacts, the device is started.
  • the cut sheets 13 are fed individually at a running-in speed V1 of approximately 1 m / s.
  • V1 running-in speed
  • the stop 16/2 is first swung out and the feed channel to the storage area 15/1 is free.
  • the single sheet EB1 slides over the sliding surface of the receiving area 13 and comes to the rear stop 16/1.
  • the rollers 19 and 21 are spaced apart. This feeding of the single sheet EB1 to the rear stop 16/1 is supported by the front paddles 17, the rear paddles 17/1 aligning the sheet EB1 with the stop 16/1.
  • the second sheet is fed at the same infeed speed V1 and comes to rest against the stop 16/2, which has been swung up in the meantime.
  • the running paddles 17 align the single sheets EB1 and EB2 with the stops 16. Whereby the running paddles hold the single sheets on the stops 16.
  • the feed roller pair 22 then conveys the single sheets EB1 and EB2 at process speed V2 to the transfer printing or transfer station 11 and from there at a transport speed V3 to the fixing station 12.
  • the transport speed V3 can be approximately 0.5 m / s .
  • the distance between transfer station 11 and fixation station 12 is approximately 320 mm in accordance with the A4 format used.
  • the device shown is not only suitable for feeding two single sheets in A4 format for parallel operation of the printing device, it can also be used for feeding single sheets in A3 format, a format which is twice as large as the A4 format. In this case, the stop 16/2 is continuously swung out of the receiving area. It is also with the device a mixed operation possible, both single sheet and parallel operation with two sheets or feeding single sheets of a larger format, for. B. A5 instead of two sheets A4.

Abstract

For the lateral feeding of individual sheets (EB1, EB2) to the paper-transporting duct (10) of an electrophotographic printer or copier, a receiving area (13) for the individual sheets (EB1, EB2) is arranged in extension of the paper-transporting duct, which receiving area has a plurality of delivery areas assigned to the individual sheets. Opening out into the receiving area (13) is a feed duct which runs essentially perpendicular to the paper-transporting duct (10) and via which the individual sheets can be fed individually and successively. The delivery areas (15/1, 15/2) have stops with associated alignment paddles (17/1, 17/2) for aligning the individual sheets at the stops. The stops are designed to be at least partially pivotable in and out. When the individual sheets have been delivered in the delivery areas (15/1, 15/2) they are picked up by paper-transporting cylinders which can be pivoted on and away and fed to the paper-transporting duct (10). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum seitlichen Zuführen von Einzelblätter zu einem Papiertransportkanal eines Druck- oder Kopiergerätes, der zum Transport von mehreren nebeneinander angeordneten Einzelblättern ausgelegt ist.The invention relates to a device for the lateral feeding of single sheets to a paper transport channel of a printing or copying machine, which is designed for transporting a plurality of single sheets arranged side by side.

Nach dem Prinzip der Elektrofotografie arbeitende Druck- oder Kopiergeräte sind allgemein bekannt. Bei diesen Geräten wird auf einem Zwischenträger ein Ladungsbild erzeugt, in einer Entwicklerstation mit Toner entwickelt und in einer Umdruckstation das Tonerbild auf einen Aufzeichnungsträger übertragen. In einer der Umdruckstation nachgeordneten Fixierstation erfolgt eine Fixierung der Tonerbilder durch Druck und Wärme. Dabei werden im allgemeinen Fixierstationen verwendet, die aus zwei Fixierwalzen bestehen, von denen zumindest eine beheizt ist. Durch Wärme und Druck werden die Tonerteilchen in den Aufzeichnungsträger eingeschmolzen. Eine derartige mit Einzelblättern arbeitende Druckeinrichtung ist z. B. aus der WO 89/08282 bekannt.Printing or copying devices operating on the principle of electrophotography are generally known. In these devices, a charge image is generated on an intermediate carrier, developed with toner in a developer station and the toner image is transferred to a recording medium in a transfer printing station. The toner images are fixed by pressure and heat in a fixing station arranged downstream of the transfer printing station. Fusing stations are generally used, which consist of two fusing rollers, at least one of which is heated. The toner particles are melted into the recording medium by heat and pressure. Such a printing device working with single sheets is such. B. known from WO 89/08282.

Bei den bekannten Druckeinrichtungen werden die Einzelblätter einem Vorratsbereich entnommen seriell einem Druckkanal der Druckeinrichtung zugeführt und dort hintereinander einzeln verarbeitet. Der Vorratsbereich ist dabei Bestandteil der Druckeinrichtung selbst und ist fluchtend mit dem Druckkanal angeordnet.In the known printing devices, the individual sheets are taken from a storage area and fed serially to a printing channel of the printing device and processed there one after the other. The storage area is part of the printing device itself and is aligned with the pressure channel.

Eine wesentliche Erhöhung der Druckgeschwindigkeit ergibt sich, wenn man zwei Blätter parallel im Druckkanal verarbeitet. In diesem Falle müssen die Einzelblätter parallel von zwei Stapeln abgezogen und parallel dem Transportkanal zugeführt werden. Dies erfordert einen hohen Aufwand der Papierzuführungseinrichtung. Außerdem ist dabei der Füllzustand von zwei Vorratsbehältern zu überwachen.A significant increase in printing speed results when two sheets are processed in parallel in the printing channel. In this case, the single sheets must be drawn off in parallel from two stacks and fed parallel to the transport channel. This requires a lot of effort from the paper feed device. In addition, the fill level of two storage containers must be monitored.

Durch die Anordnung des Vorratsbereiches in Verlängerung des Papiertransportkanales vergrößert sich die Baulänge des Druck- oder Kopiergerätes. Außerdem wird dadurch die Anordnung der Aggregate des elektrofotografischen Prozesses und ihre Ausgestaltung stark eingeschränkt.The arrangement of the storage area in the extension of the paper transport channel increases the overall length of the printing or copying machine. In addition, the arrangement of the units of the electrophotographic process and their design are severely restricted.

Ein weiteres Problem bei der Parallelverarbeitung von Einzelblättern in elektrofotografischen Druck- oder Kopiergeräten besteht in der exakten Ausrichtung der Einzelblätter vor dem Umdruck der Tonerbilder auf die Einzelblätter. Eine Relativverschiebung der Einzelblätter zueinander führen zu einem schlechten Druckbild.Another problem with the parallel processing of single sheets in electrophotographic printing or copying devices is the exact alignment of the single sheets before the transfer of the toner images onto the single sheets. A relative shift of the single sheets leads to a bad print image.

Aufgabe der Erfindung ist es, eine Vorrichtung der eingangs genannten Art bereitzustellen, die es ermöglicht, einem Druck- oder Kopiergerät, das für die Parallelverarbeitung von Einzelblätter in einem Papiertransportkanal ausgelegt ist, seitlich seriell Einzelblätter zuzuführen.The object of the invention is to provide a device of the type mentioned at the outset, which makes it possible to serially feed individual sheets laterally to a printing or copying machine which is designed for the parallel processing of single sheets in a paper transport channel.

Die Vorrichtung soll eine hohe Druckgeschwindigkeit ermöglichen bei exakter Positionierung der Einzelblätter im Papiertransportkanal.The device should enable a high printing speed with exact positioning of the single sheets in the paper transport channel.

Diese Aufgabe wird bei einer Vorrichtung der eingangs genannten Art gemäß den Merkmalen des ersten Patentanspruches gelöst.This object is achieved in a device of the type mentioned at the outset according to the features of the first claim.

Vorteilhafte Ausführungsformen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous embodiments of the invention are characterized in the subclaims.

Die Vorrichtung ermöglicht eine seitliche Zuführung der Einzelblätter, ohne daß dabei die Verarbeitungsgeschwindigkeit bei der Parallelverarbeitung der Einzelblätter verringert wird. Die Einzelblätter werden exakt ausgerichtet und dem Umdruckbereich des Gerätes exakt positioniert zugeführt, was die Druckqualität erhöht.The device enables the individual sheets to be fed in from the side without reducing the processing speed during parallel processing of the single sheets. The single sheets are precisely aligned and fed to the transfer area of the device, which increases the print quality.

Mit der Vorrichtung ist es möglich im gemischten Betrieb sowohl Einzelblätter einzeln als auch mehrere Blätter im Parallelbetrieb zu verarbeiten.With the device it is possible to process single sheets individually as well as several sheets in parallel operation in mixed operation.

Eine Ausführungsform der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden beispielsweise näher beschrieben. Es zeigen

  • Figur 1 eine schematische Darstellung der Einzelblattzuführeinrichtung in einem elektrofotografischen Druckgerät von oben gesehen und
  • Figur 2 eine schematische Seitenansicht einer Transporteinrichtung zur parallelen Zuführung der Einzelblätter.
An embodiment of the invention is shown in the drawings and is described in more detail below, for example. Show it
  • Figure 1 is a schematic representation of the single sheet feeder in an electrophotographic printing device seen from above and
  • Figure 2 is a schematic side view of a transport device for parallel feeding of the single sheets.

Ein in der Figur schematisch dargestelltes elektrofotografisches Druckgerät zur Verarbeitung von Einzelblättern besteht aus einem Geräteteil GT zur Aufnahme der für den elektrofotografischen Prozeß notwendigen Aggregate und der Papiertransportelemente und einem Steuerungsteil ST zur Aufnahme der Ansteuerungselektronik. Der Geräteteil GT enthält einen Papiertransportkanal 10 zum Transport von Einzelblätter EB1, EB2 durch den für den elektrofotografischen Prozeß notwendigen Aggregate. Diese sind im wesentlichen eine hier nur schematisch dargestellte Umdruckstation 11 zum Bedrucken der Einzelblätter EB1 und EB2 im Parallelbetrieb mit Tonerbilder und einer in Papiertransportrichtung nachgeordneten Fixierstation 12 aus zwei Fixierwalzen, von denen mindestens eine beheizt ist und zwischen denen die Tonerbilder auf den Einzelblättern fixiert werden. Umdruckstation 11 und Fixierstation 12 können entsprechend der WO 89/08282 ausgestaltet sein. Bei dem dargestellten Ausführungsbeispiel ist die Umdruckstation 11 unterhalb des Papiertransportkanales 10 angeordnet und enthält ein Transferband, das die Tonerbilder auf die Unterseite der Einzelblätter EB1 und EB2 aufbringt. Dadurch wird ein sogenannter "face up" Druck möglich, der wichtig ist für die seiten- und folgerichtige Ablage in einer der Druckeinrichtung nachgeordneten Ausgabeeinrichtung AG. Dem Papiertransportkanal 10 zugeordnet ist eine Vorrichtung zum seitlichen seriellen Zuführen von Einzelblättern. Sie besteht aus einem in Verlängerung des Papiertransportkanales angeordneten Aufnahmebereich 13 für die Einzelblätter, in den ein im wesentlichen senkrecht zum Papiertransportkanal 10 verlaufender Zuführkanal 14 für die Einzelblätter mündet. Über den Zuführkanal 14 werden die Einzelblätter seriell einzeln hintereinander zugeführt. Der Zuführbereich 14 weist mehrere beispielsweise zwei Ablagebereiche 15/1 und 15/2 auf, die dazu dienen, die seriell zugeführten Einzelblätter aufzunehmen. Sie haben die Funktion eines Zwischenspeichers. Den Ablegebereichen 15/1 und 15/2 jeweils zugeordnet sind in Papiertransportkanalrichtung (Pfeil) ausgerichtete Anschläge 16 mit zugehörigen Ausrichtmitteln 17 zum Ausrichten der Einzelblätter EB1 und EB2 an den Anschlägen. Diese Ausrichtmittel bestehen im dargestellten Fall aus zwei elektrisch angetriebenen Paddelwellen, wie sie üblicherweise zum Vereinzeln und Ausrichten von Einzelblättern in Druckeinrichtungen verwendet werden. Der in Zuführrichtung der Einzelblätter EB1 und EB2 vor den letzten Anschlag 16/1 angeordnete Anschlag 16/2 ist mit einem elektromagnetischen Antrieb 18, z. B. einem Motor oder einem Elektromagneten gekoppelt, über den er in den Aufnahmebereich 13 ein- und ausgeschwenkt werden kann. Weiterhin weist die Vorrichtung in einem Mündungsbereich zwischen Papiertransportkanal 10 und Aufnahmebereich 13 Transportmittel auf, die nach Ablage der Einzelblätter in dem Ablagebereich 13 die Einzelblätter gemeinsam erfassen und dem Papiertransportkanal 10 zuführen. Diese Transportmittel bestehen in dem dargestellten Ausführungsbeispiel entsprechend der Figur 2 aus einer den Aufnahmebereich 13 überspannenden ortsfesten oberen Papiertransportwalze 19, die eine glatte Oberfläche hat und elektromotorisch angetrieben ist, sowie aus einer über einen Motor 20 an- und abschwenkbaren Gegenwalze 21 aus Gummi. Zur Zuführung der Einzelblätter zum Papiertransportkanal 10 wird die Gegenwalze 21 elektromotorisch an die Papiertransportwalze 19 angeschwenkt und die dazwischenliegenden Einzelblätter EB1 bzw. EB2 in Papiertransportrichtung (Pfeil) transportiert.An electrophotographic printing device for processing single sheets, shown schematically in the figure, consists of a device part GT for receiving the units necessary for the electrophotographic process and the paper transport elements and a control part ST for receiving the control electronics. The device part GT contains a paper transport channel 10 for transporting single sheets EB1, EB2 through the units necessary for the electrophotographic process. These are essentially a transfer station 11, shown only schematically here, for printing on the individual sheets EB1 and EB2 in parallel operation with toner images and a fixing station 12 arranged downstream in the paper transport direction, comprising two fixing rollers, at least one of which is heated and between which the toner images are fixed on the individual sheets. Transfer printing station 11 and fixing station 12 can be designed in accordance with WO 89/08282. In the exemplary embodiment shown, the transfer printing station 11 is arranged below the paper transport channel 10 and contains a transfer belt which applies the toner images to the underside of the individual sheets EB1 and EB2. This enables so-called "face up" printing, which is important for the lateral and consequent filing in an output device AG downstream of the printing device. A device for lateral serial feeding of single sheets is assigned to the paper transport channel 10. It consists of a receiving area 13 for the single sheets arranged in the extension of the paper transport channel, into which a feed channel 14 for the single sheets opens, which runs essentially perpendicular to the paper transport channel 10. The single sheets are fed serially one after the other via the feed channel 14. The feed area 14 has several, for example, two storage areas 15/1 and 15/2, which serve to receive the serially fed single sheets. They act as a buffer. The storage areas 15/1 and 15/2 are each assigned stops 16 aligned in the paper transport channel direction (arrow) with associated alignment means 17 for aligning the individual sheets EB1 and EB2 on the stops. In the case shown, these alignment means consist of two electrically driven paddle shafts, as are usually used for separating and aligning single sheets in printing devices. The arranged in the feed direction of the single sheets EB1 and EB2 before the last stop 16/1 stop 16/2 is equipped with an electromagnetic drive 18, for. B. coupled to a motor or an electromagnet, via which it can be pivoted in and out of the receiving area 13. Furthermore, in an opening area between the paper transport channel 10 and the receiving area 13, the device has transport means which, after the individual sheets have been deposited in the storage area 13, collectively capture the individual sheets and feed them to the paper transport channel 10. In the exemplary embodiment shown, as shown in FIG. 2, these transport means consist of a stationary upper paper transport roller 19 spanning the receiving area 13, which has a smooth surface and is driven by an electric motor, and a rubber counter roller 21 which can be swiveled in and out via a motor 20. To feed the single sheets to the paper transport channel 10, the counter-roller 21 is pivoted to the paper transport roller 19 by an electric motor and the individual sheets EB1 or EB2 lying therebetween are transported in the paper transport direction (arrow).

Bei einer speziellen Ausführungsform können in Papiertransportrichtung den Transportmitteln (Papiertransportwalze 19 und Gegenwalze 21) nachgeordnet zusätzliche Ausrichtmittel zum frontseitigen Ausrichten der Einzelblätter EB1 und EB2 vorgesehen sein. Diese bestehen in dem dargestellten Fall aus einem Einzugswalzenpaar 22, das z. B. eine Buckelwalze zum nochmaligen Ausrichten der Einzelblätter haben kann. Dabei erfolgt das Ausrichten der Einzelblätter dadurch, daß bei stehendem Einzugswalzenpaar 22 die Papiertransportwalze 19 in Verbindung mit der Gegenwalze 21 bis zum Anschlag an die Buckelwalze transportiert.In a special embodiment, additional alignment means for the front side can be arranged downstream of the transport means (paper transport roller 19 and counter roller 21) in the paper transport direction Alignment of the single sheets EB1 and EB2 may be provided. In the case shown, these consist of a pair of feed rollers 22 which, for. B. can have a hump roller for realigning the single sheets. The individual sheets are aligned in such a way that when the pair of feed rollers 22 is stationary, the paper transport roller 19 in connection with the counter roller 21 is transported to the hump roller as far as it will go.

Zur Zuführung der Einzelblätter zum Aufnahmebereich 13 weist der Zuführkanal 14 Transportwalzen 23 auf. Zuführkanal 14 und Transportwalzen 23 sind Bestandteil eines Papiervorratbereiches PV, der zur Aufnahme der übereinander gestapelten, zu bedruckenden Einzelblätter dient. Der Papiervorratsbereich PV ist als selbständiges getrenntes Gerät ausgebildet, der am Boden Transportrollen aufweist. Dadurch ist es möglich, den Papiervorratsbereich PV getrennt vom Gerät zu beladen und den beladenen Papiervorratsbereich PV in den Bereich einer Zuführöffnung 24 für den Aufnahmebereich 13 zu bringen. Mechanische Befestigungsmittel, z. B. Riegel oder sonstige Justierelemente können zur Ausrichtung und Befestigung des Papiervorratsbereiches PV auf die Zuführöffnung 24 am Papiervorratsbereich PV und am Geräteteil GT vorgesehen sein, ebenso ein elektrischer Anschluß zur Steuerung der Zuführung der Einzelblätter über die Transportwalzen 23 durch die Steuerung ST des Gerätes.The feed channel 14 has transport rollers 23 for feeding the single sheets to the receiving area 13. Feed channel 14 and transport rollers 23 are part of a paper supply area PV, which is used to hold the individual sheets to be printed which are stacked one on top of the other. The paper supply area PV is designed as an independent, separate device which has transport rollers on the bottom. This makes it possible to load the paper supply area PV separately from the device and to bring the loaded paper supply area PV into the area of a feed opening 24 for the receiving area 13. Mechanical fasteners, e.g. B. latches or other adjusting elements can be provided for aligning and fastening the paper supply area PV on the feed opening 24 on the paper supply area PV and on the device part GT, as well as an electrical connection for controlling the supply of the single sheets via the transport rollers 23 by the controller ST of the device.

Die gesamte Vorrichtung arbeitet wie folgt:
Nach Koppelung des Papiervorratsbereiches PV an der seitlichen Zuführöffnung 24 des Gerätes GT und Schließen der entsprechenden Koppelungskontakte wird das Gerät gestartet. Bei z. B. einfarbigem Simplexbetrieb wird mit einer Einlaufgeschwindigkeit V1 von etwa 1 m/s dem Aufnahmebereich 13 die Einzelblätter einzeln zugeführt. Dabei ist bei Zuführung eines ersten Blattes EB1 zunächst der Anschlag 16/2 ausgeschwenkt und damit der Zuführkanal zum Ablagebereich 15/1 frei. Das Einzelblatt EB1 gleitet über die Gleitfläche des Aufnahmebereiches 13 und kommt zur Anlage an den hinteren Anschlag 16/1. Die Walzen 19 und 21 sind dabei beabstandet. Dieses Zuführen des Einzelblattes EB1 zum hinteren Anschlag 16/1 wird unterstützt durch die vorderen Paddel 17, wobei die hinteren Paddel 17/1 das Blatt EB1 an dem Anschlag 16/1 ausrichten. Danach wird mit der gleichen Einlaufgeschwindigkeit V1 das zweite Blatt zugeführt und kommt zur Anlage an den zwischenzeitlich hochgeschwenkten Anschlag 16/2. Die laufenden Paddel 17 richten die Einzelblätter EB1 und EB2 an den Anschlägen 16 aus. Wobei die laufenden Paddel die Einzelblätter an den Anschlägen 16 festhalten.The entire device works as follows:
After coupling the paper supply area PV to the side feed opening 24 of the device GT and closing the corresponding coupling contacts, the device is started. At z. B. single-color simplex operation, the cut sheets 13 are fed individually at a running-in speed V1 of approximately 1 m / s. When a first sheet EB1 is fed, the stop 16/2 is first swung out and the feed channel to the storage area 15/1 is free. The single sheet EB1 slides over the sliding surface of the receiving area 13 and comes to the rear stop 16/1. The rollers 19 and 21 are spaced apart. This feeding of the single sheet EB1 to the rear stop 16/1 is supported by the front paddles 17, the rear paddles 17/1 aligning the sheet EB1 with the stop 16/1. Then the second sheet is fed at the same infeed speed V1 and comes to rest against the stop 16/2, which has been swung up in the meantime. The running paddles 17 align the single sheets EB1 and EB2 with the stops 16. Whereby the running paddles hold the single sheets on the stops 16.

Danach geht das in Prozeßrichtung gelegene auseinandergefahrene Walzenpaar 19 und 21 in Kontakt und befördert mit Prozeßgeschwindigkeit V2 (z. B. 0,8 m/s) die beiden parallel liegenden Blätter EB1 und EB2 trotz rotierender Paddel gegen das stehende Einzugswalzenpaar 22. Dort werden die Einzelblätter parallel ausgerichtet.Thereafter, the separated roller pair 19 and 21 located in the process direction comes into contact and conveys the two parallel blades EB1 and EB2 against the stationary feed roller pair 22 despite the rotating paddle at process speed V2 (e.g. 0.8 m / s) Single sheets aligned in parallel.

Das Einzugswalzenpaar 22 fördert dann die Einzelblätter EB1 und EB2 mit Prozeßgeschwindigkeit V2 zur Umdruck- bzw. Transferstation 11 und von dort mit einer Transportgeschwindigkeit V3 zur Fixierstation 12. Ist die Fixierstation als Rollenfixierstation ausgebildet, kann die Transportgeschwindigkeit V3 etwa 0,5 m/s betragen. Bei Bandfixierung ergibt sich eine höhere Fixiergeschwindigkeit und damit eine höhere Transportgeschwindigkeit in der Fixierstation von etwa 0,8 m/s entsprechend der eigentlichen Prozeßgeschwindigkeit V2. Bei dem dargestellten Ausführungsbeispiel mit Rollenfixierung beträgt beispielsweise der Abstand zwischen Transferstation 11 und Fixierstation 12 etwa 320 mm entsprechend dem verwendeten A4 Format.The feed roller pair 22 then conveys the single sheets EB1 and EB2 at process speed V2 to the transfer printing or transfer station 11 and from there at a transport speed V3 to the fixing station 12. If the fixing station is designed as a roller fixing station, the transport speed V3 can be approximately 0.5 m / s . In the case of band fixing, there is a higher fixing speed and thus a higher transport speed in the fixing station of approximately 0.8 m / s corresponding to the actual process speed V2. In the illustrated embodiment with roll fixation, for example, the distance between transfer station 11 and fixation station 12 is approximately 320 mm in accordance with the A4 format used.

Die dargestellte Vorrichtung ist nicht nur zur Zuführung von zwei Einzelblättern im A4 Format zum Parallelbetrieb der Druckeinrichtung geeignet, sie kann auch zur Zuführung von Einzelblättern im A3 Format dienen, einem Format, das doppelt so groß ist wie das A4 Format. In diesem Fall ist der Anschlag 16/2 beständig aus dem Aufnahmebereich ausgeschwenkt. Es ist außerdem mit der Vorrichtung ein Mischbetrieb möglich und zwar sowohl Einzelblatt als auch Parallelbetrieb mit zwei Blättern oder Zuführung von Einzelblättern eines größeren Formates, z. B. A5 an Stelle von zwei Blättern A4.The device shown is not only suitable for feeding two single sheets in A4 format for parallel operation of the printing device, it can also be used for feeding single sheets in A3 format, a format which is twice as large as the A4 format. In this case, the stop 16/2 is continuously swung out of the receiving area. It is also with the device a mixed operation possible, both single sheet and parallel operation with two sheets or feeding single sheets of a larger format, for. B. A5 instead of two sheets A4.

Claims (5)

Vorrichtung zum seitlichen Zuführen von Einzelblättern zu einem Papiertransportkanal (10) eines Druck- oder Kopiergerätes, der zum Transport von einem oder mehreren nebeneinander angeordneten Einzelblättern (EB1, EB2) eines ersten Formats oder von einem Einzelblatt eines zweiten größeren Formates ausgelegt ist mit - einem in Verlängerung des Papiertransportkanales angeordneten Aufnahmebereich (13) für die Einzelblätter (EB1, EB2) in den ein im wesentlichen senkrecht zum Papiertransportkanal (10) verlaufender Zuführkanal (14) für die Einzelblätter (EB1, EB2) mündet, über den die Einzelblätter einzeln hintereinander zugeführt werden - auf dem Aufnahmebereich (13) angeordnete Ablagebereiche (15/1, 15/2) für die Einzelblätter - den Ablagebereichen (15/1, 15/2) jeweils zugeordnete, in Papiertransportkanalrichtung ausgerichtete Anschläge (16/1, 16/2) mit zugehörigen Ausrichtmitteln (17/1, 17/2) zum Ausrichten der Einzelblätter an den Anschlägen (16/1, 16/2), wobei mindestens in Zuführrichtung der Einzelblätter vor einem letzten Anschlag (16/1) angeordnete Anschläge (16/2) in den Aufnahmebereich (13) ein- und ausschwenkbar ausgestaltet sind und - einem Mündungsbereich zwischen Papiertransportkanal und Aufnahmebereich zugeordnete Transportmittel (19, 21), die nach Ablage der Einzelblätter auf den Ablagebereichen (15/1, 15/2) die Einzelblätter gemeinsam erfassen und dem Papiertransportkanal (10) zuführen. Device for the lateral feeding of single sheets to a paper transport channel (10) of a printing or copying device, which is designed to transport one or more single sheets (EB1, EB2) of a first format or a single sheet of a second larger format arranged side by side - A receiving area (13) arranged in the extension of the paper transport channel for the single sheets (EB1, EB2) opens into a feed channel (14) for the single sheets (EB1, EB2) which runs essentially perpendicular to the paper transport channel (10) and via which the single sheets individually be fed one after the other - On the receiving area (13) arranged storage areas (15/1, 15/2) for the single sheets - The storage areas (15/1, 15/2) each assigned stops (16/1, 16/2) aligned in the paper transport channel direction with associated alignment means (17/1, 17/2) for aligning the single sheets on the stops (16 / 1, 16/2), wherein at least in the feed direction of the single sheets before a last stop (16/1), stops (16/2) arranged in the receiving area (13) are designed to be pivotable in and out - A mouth area between the paper transport channel and the receiving area assigned transport means (19, 21), which collect the single sheets after depositing the single sheets on the storage areas (15/1, 15/2) and feed the paper transport channel (10). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Transportmittel (19, 21) eine stationäre (19) und eine an- und abschwenkbare Papiertransportwalze (21) aufweisen, von denen mindestens eine elektromotorisch antreibbar ist, die die in den Ablagebereichen des Aufnahmebereiches (13) abgelegten Einzelblätter (EB1, EB2) überspannen und die zum Transport der Einzelblätter zum Papiertransportkanal (10) die Einzelblätter (EB1, EB2) beidseitig erfassen.Device according to claim 1,
characterized in that the transport means (19, 21) have a stationary (19) and a paper transport roller (21) which can be swiveled in and out, at least one of which can be driven by an electric motor, which the single sheets (EB1 , EB2) and cover the for transporting the single sheets Detect the single sheets (EB1, EB2) on both sides of the paper transport channel (10). Vorrichtung nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet, daß die Ausrichtmittel rotierende, die Oberfläche der Einzelblätter überstreichende Paddel (17/1, 17/2) aufweisen.Device according to one of claims 1 or 2,
characterized in that the alignment means comprise rotating paddles (17/1, 17/2) which sweep the surface of the single sheets. Vorrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß in Papiertransportrichtung den Transportmitteln (19, 21) nachgeordnet weitere Ausrichtmittel (22) zum frontseitigen Ausrichten der Einzelblätter (EB1, EB2) vorgesehen sind.Device according to one of claims 1 to 3,
characterized in that further aligning means (22) are provided downstream of the conveying means (19, 21) for aligning the individual sheets (EB1, EB2) on the front side in the paper transport direction. Vorrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß ein als selbständige, mit dem Druck- oder Kopiergerät (GT) koppelbare Baueinheit ausgebildeter Papiervorratsbereich (PV) vorgesehen ist, mit darin angeordnetem Zuführkanal (14) und zugehörigen Papiertransportelementen (23).Device according to one of claims 1 to 4,
characterized in that a paper supply area (PV) designed as an independent unit which can be coupled to the printing or copying device (GT) is provided, with a feed channel (14) and associated paper transport elements (23) arranged therein.
EP91120693A 1990-12-14 1991-12-02 Sheet feeding device for copier or printer that processes sheets simultanously Expired - Lifetime EP0490216B1 (en)

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DE4040100 1990-12-14
DE4040100 1990-12-14

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EP0490216A1 true EP0490216A1 (en) 1992-06-17
EP0490216B1 EP0490216B1 (en) 1995-08-02

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US6511063B1 (en) * 1999-10-15 2003-01-28 Nexpress Solutions Llc Apparatus for transporting and delivering individual sheets

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NL1025159C2 (en) 2003-12-31 2005-07-04 Neopost Sa Device for transporting sheets along a conveyor track with a bend extending around a conveyor roller.

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DE1040355B (en) * 1955-12-05 1958-10-02 Christopher John Heywood Method and device for automatic conveying of one or more workpieces made of sheet-like material, such as B. paper, cardboard or the like, in particular to an embossing or printing device
FR1350255A (en) * 1963-02-28 1964-01-24 Leipziger Buchbindereimaschine Sheet transport and retention device
US4235431A (en) * 1978-12-04 1980-11-25 Aes Technology Systems, Inc. Method and apparatus for transporting documents with preselected interdocument spacing
DE3207354A1 (en) * 1982-03-02 1983-09-15 Otto Dipl.-Ing. 4553 Subingen Solothurn Bay Device for transporting sheets following one another individually
US4727402A (en) * 1986-12-18 1988-02-23 Xerox Corporation Automatic copier signature set production

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Publication number Priority date Publication date Assignee Title
DE1040355B (en) * 1955-12-05 1958-10-02 Christopher John Heywood Method and device for automatic conveying of one or more workpieces made of sheet-like material, such as B. paper, cardboard or the like, in particular to an embossing or printing device
FR1350255A (en) * 1963-02-28 1964-01-24 Leipziger Buchbindereimaschine Sheet transport and retention device
US4235431A (en) * 1978-12-04 1980-11-25 Aes Technology Systems, Inc. Method and apparatus for transporting documents with preselected interdocument spacing
DE3207354A1 (en) * 1982-03-02 1983-09-15 Otto Dipl.-Ing. 4553 Subingen Solothurn Bay Device for transporting sheets following one another individually
US4727402A (en) * 1986-12-18 1988-02-23 Xerox Corporation Automatic copier signature set production

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511063B1 (en) * 1999-10-15 2003-01-28 Nexpress Solutions Llc Apparatus for transporting and delivering individual sheets

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EP0490216B1 (en) 1995-08-02
DE59106150D1 (en) 1995-09-07

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