EP0706963B1 - Sheet transport and alignment apparatus - Google Patents

Sheet transport and alignment apparatus Download PDF

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Publication number
EP0706963B1
EP0706963B1 EP95116183A EP95116183A EP0706963B1 EP 0706963 B1 EP0706963 B1 EP 0706963B1 EP 95116183 A EP95116183 A EP 95116183A EP 95116183 A EP95116183 A EP 95116183A EP 0706963 B1 EP0706963 B1 EP 0706963B1
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EP
European Patent Office
Prior art keywords
straightedge
transport
transport rollers
transport rolls
limb
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
EP95116183A
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German (de)
French (fr)
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EP0706963A1 (en
Inventor
Günther Thieme
Lutz Richter
Jürgen Röder
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.)
Brehmer Buchbindereimaschinen GmbH
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Brehmer Buchbindereimaschinen GmbH
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Publication of EP0706963A1 publication Critical patent/EP0706963A1/en
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    • 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
    • B65H9/16—Inclined tape, roller, or like article-forwarding side registers
    • B65H9/166—Roller

Definitions

  • the invention relates to a sheet transport and alignment device with at least one guide ruler and across this arranged, driven transport rollers and against their lateral surface, freely rotatable and the Guide ruler adjacent transport rollers.
  • Such a sheet transport and alignment device is for Sheets of paper, cardboard or the like on machines for book-binding processing, especially at feed tables of folding machines, usable.
  • the transport rollers are supported by their spring force, if necessary Dead weight with the surface of the transport rollers in contact as long as the contact is not funded by a Arc is temporarily interrupted.
  • the alignment effect is known from a DD 297 621 A5 Sheet transport and alignment device by arranging the Transport rollers at an angle of approximately 3 ° to the vertical reached on the ruler.
  • the axes of the transport rollers and transport rollers are each perpendicular and parallel on top of each other.
  • the transport rollers are on a bow-shaped lever deflectably mounted on the guide ruler and are by means of a rope loading their axes against the transport rollers. By the little one
  • the slip angle of the transport rollers becomes the slip minimized on the conveyed sheets, creating unwanted Markings on the arches can be avoided.
  • GB 2 232 661 A describes a device for transporting Aligning and stacking envelopes known in which the transport rollers inclined with respect to the guide direction are rotatably mounted on a lever arm. Each two such lever arms with a transport roller are next to each other attached to one on the frame of the device Shaft attached.
  • the transport rollers would use the printed space of the sheets come into contact and printing ink absorb, which leads to smearing on subsequent sheets would.
  • the invention has for its object to provide a sheet transport and alignment device in which the Transport rollers are attached so that an alignment of the transported sheets guaranteed without the inclusion of printing ink is.
  • the slip between Sheets and transport rollers further reduced.
  • the axes of the transport rollers are perpendicular to the guide ruler and the axes of the transport rollers against that of the transport rollers towards the guide ruler inclined. It was found that an inclination of the Transport rollers can be dispensed with entirely.
  • the for Sheet alignment required, directed towards the guide ruler Force component can surprisingly by itself inclined transport rollers are generated, though this only with a narrow edge area of the arch in Come while the transport rollers are moving over the extend the entire sheet width. Is of increased importance however, the pressing force with which the transport rollers are loaded against the transport rollers. thats why in the preferred embodiment, this pressing force is adjustable.
  • which which the pressure force of at least certain transport rollers is individually adjustable while being used for other transport roles is adjustable in groups.
  • a frame 10 of the sheet transport and alignment table are driven transport rollers 12 at the same height, in parallel to each other and rotatably mounted at regular intervals.
  • the transport rollers 12 together form a transport plane for the sheets 14 to be aligned, their transport direction each illustrated in the drawing by an arrow is.
  • a guide ruler 16 is attached to the frame 10, which extends in the longitudinal direction of the frame 10.
  • the axes of the transport rollers 12 form an angle of 90 ° with the guide ruler 16.
  • Each transport roller 12 is a transport roller 18a or 18b assigned, wherein the transport rollers 18a cylindrical and the transport rollers 18b are approximately hemispherical. How 3 shows, the transport rollers 18a and 18b at the free end of one of the two legs 20, 22 one bow-shaped lever 24 freely rotatable.
  • the two Legs 20, 22 of this lever 24 are by a lever arm 26 connected to each other.
  • the leg 22 is rectangular to the lever arm 26 and on a pin 28 which is on the guide ruler 16 is screwed, rotatably mounted.
  • the other Leg 20 forms an angle with the lever arm 26 slightly more than 90 °, for example 95 °.
  • the leg 20 extends each through an opening 30 in the guide ruler 16 from its side facing away from the arch to its alignment side. Since the diameter of the transport rollers 18 the the clear width of the openings 30, the transport rollers 18a and 18b each through an opening 30 protruding free end of the leg 20 pushed and secured with a snap fit in the axial direction.
  • This angle can be approximately 5 °.
  • the transport rollers 18a, 18b are already by their own weight and the weight of their suspension on the ruler loaded towards the transport rollers 12. To increase the However, their axes are additionally pressing against the Transport rollers acted on.
  • the additional pressure force is generated by a tensioned wire 32, each a bearing pin 28 and one protruding from the lever arm 26 Pin 34 partially wraps around.
  • the one generated by the wire 32 Contact pressure is determined by its tension. This tension can be by means of a tensioning device 36 one end of the guide ruler 16 can be set.
  • the hemispherical transport rollers 18b face each other the cylindrical 18a the advantage that it can only be used with one very narrow edge area along the alignment edge of the Guide rulers 16 engage and thus in the pressure-free Space of the arch remain. Therefore it cannot Ink or ink are absorbed on these transport rollers respectively.
  • the cylindrical transport rollers 18a are only in the infeed of the sheet transport and alignment table needed where the sheets are still scattered and about 10 mm from the alignment edge of the guide ruler 16 are removed can.
  • the wider engagement surface of the cylindrical Transport rollers 18a ensures here that the sheet quickly and safely detected and to the alignment edge of the Guide rulers 16 is promoted.
  • FIGS. 1-3 all Transport rollers 18a, 18b by a single tensioned Wire 32 applied simultaneously and with the same pressure force.
  • the embodiment of Figure 4 differs differs from that according to FIGS. 1-3 only in that two groups of transport rollers are formed, each of which a tensioned wire 32a or 32b is assigned to the two groups of transport rollers with different To apply pressure forces.
  • there are individual adjustment devices 38a, 38b provided by each a transport roller with an individually adjustable pressure can be applied.
  • Figure 5 differs from that according to Figure 1 in that on both sides of the transport route Sheets 14 each have a guide ruler 16a or 16b with the associated Transport rollers is provided.
  • the arches 14 can therefore, if necessary, on the left or right of the guide ruler 16a or 16b are aligned.
  • FIG 6 finally shows a modification of the embodiment according to Figure 1, which consists only in that only hemispherical transport rollers 18b are used.
  • This Embodiment is used in conjunction with a corner conveyor table (not shown) used, of which the sheets 14 are parallel to fed to the transport rollers 12 and against the guide ruler 16 become. By rounding the transport rollers 18b the sheets 14 slide under these transport rollers until they come into engagement with their active surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Description

Die Erfindung betrifft eine Bogentransport- und Ausrichtvorrichtung mit wenigstens einem Führungslineal und quer zu diesem angeordneten, angetriebenen Transportwalzen sowie gegen deren Mantelfläche belasteten, frei drehbaren und dem Führungslineal benachbarten Transportrollen.The invention relates to a sheet transport and alignment device with at least one guide ruler and across this arranged, driven transport rollers and against their lateral surface, freely rotatable and the Guide ruler adjacent transport rollers.

Eine solche Bogentransport- und Ausrichtvorrichtung ist für Bogen aus Papier, Karton oder dergleichen an Maschinen zur buchbindenden Weiterverarbeitung, insbesondere an Zuführtischen von Falzmaschinen, verwendbar. Die Transportrollen stehen durch ihr gegebenenfalls noch durch Federkraft unterstütztes Eigengewicht mit der Oberfläche der Transportwalzen in Berührung, solange der Kontakt nicht durch einen geförderten Bogen vorübergehend unterbrochen wird. Der Ausrichtungseffekt wird bei einer aus der DD 297 621 A5 bekannten Bogentransport- und Ausrichtvorrichtung durch Anordnung der Transportwalzen in einem Winkel von etwa 3° zur Senkrechten auf das Führungslineal erreicht. Die Achsen der Transportrollen und Transportwalzen liegen jeweils senkrecht und parallel übereinander. Die Transportrollen sind jeweils auf einem bügelförmigen Hebel auslenkbar am Führungslineal gelagert und werden mittels eines ihre Achsen belastenden Seils gegen die Transportwalzen beaufschlagt. Durch den kleinen Schrägstellungswinkel der Transportwalzen wird der Schlupf an den geförderten Bögen minimiert, wodurch unerwünschte Markierungen auf den Bögen vermieden werden.Such a sheet transport and alignment device is for Sheets of paper, cardboard or the like on machines for book-binding processing, especially at feed tables of folding machines, usable. The transport rollers are supported by their spring force, if necessary Dead weight with the surface of the transport rollers in contact as long as the contact is not funded by a Arc is temporarily interrupted. The alignment effect is known from a DD 297 621 A5 Sheet transport and alignment device by arranging the Transport rollers at an angle of approximately 3 ° to the vertical reached on the ruler. The axes of the transport rollers and transport rollers are each perpendicular and parallel on top of each other. The transport rollers are on a bow-shaped lever deflectably mounted on the guide ruler and are by means of a rope loading their axes against the transport rollers. By the little one The slip angle of the transport rollers becomes the slip minimized on the conveyed sheets, creating unwanted Markings on the arches can be avoided.

Aus der GB 2 232 661 A ist eine Vorrichtung zum Transportieren, Ausrichten und Stapeln von Briefumschlägen bekannt, bei der die gegenüber der Führungsrichtung geneigten Transportrollen drehbar an einem Hebelarm gelagert sind. Jeweils zwei solche Hebelarme mit einer Transportrolle sind nebeneinander an einer am Rahmen der Vorrichtung befestigten Welle angebracht. Bei der Verwendung einer solchen Vorrichtung für bedruckte Bögen würden die Transportrollen mit dem bedruckten Raum der Bögen in Kontakt kommen und Druckfarbe aufnehmen, was zum Abschmieren auf nachfolgende Bögen führen würde.GB 2 232 661 A describes a device for transporting Aligning and stacking envelopes known in which the transport rollers inclined with respect to the guide direction are rotatably mounted on a lever arm. Each two such lever arms with a transport roller are next to each other attached to one on the frame of the device Shaft attached. When using such a device for printed sheets, the transport rollers would use the printed space of the sheets come into contact and printing ink absorb, which leads to smearing on subsequent sheets would.

Der Erfindung liegt die Aufgabe zugrunde, eine Bogentransport- und Ausrichtvorrichtung zu schaffen, bei der die Transportrollen so angebracht sind, daß eine Ausrichtung der transportierten Bögen ohne Aufnahme von Druckfarbe gewährleistet ist.The invention has for its object to provide a sheet transport and alignment device in which the Transport rollers are attached so that an alignment of the transported sheets guaranteed without the inclusion of printing ink is.

Die Aufgabe wird durch die kennzeichnenden Merkmale des Anspruches 1 gelöstThe object is achieved by the characterizing features of claim 1

Durch eine Weiterbildung der erfindungsgemäßen Bogentransport- und Ausrichtvorrichtung wird der Schlupf zwischen Bögen und Transportwalzen weiter reduziert. Gemäß einer Ausführungsform sind die Achsen der Transportwalzen senkrecht zu dem Führungslineal und die Achsen der Transportrollen gegen die der Transportwalzen zum Führungslineal hin geneigt. Es wurde gefunden, daß auf eine Schrägstellung der Transportwalzen gänzlich verzichtet werden kann. Die zur Bogenausrichtung benötigte, zum Führungslineal gerichtete Kraftkomponente kann in überraschenderWeise durch die ihrerseits schräggestellten Transportrollen erzeugt werden, obwohl diese nur mit einem schmalen Randbereich des Bogens in Eingriff kommen, während die Transportwalzen sich über die gesamte Bogenbreite erstrecken. Von erhöhter Bedeutung ist dabei allerdings die Andruckkraft, mit der die Transportrollen gegen die Transportwalzen belastet sind. Daher ist bei der bevorzugten Ausführungsform diese Andruckkraft einstellbar. Besonders vorteilhaft sind Ausführungsformen, bei denen die Andruckkraft wenigstens bestimmter Transportrollen individuell einstellbar ist, während sie für andere Transportrollen gruppenweise einstellbar ist.By further developing the sheet transport and alignment device according to the invention, the slip between Sheets and transport rollers further reduced. According to one Embodiment, the axes of the transport rollers are perpendicular to the guide ruler and the axes of the transport rollers against that of the transport rollers towards the guide ruler inclined. It was found that an inclination of the Transport rollers can be dispensed with entirely. The for Sheet alignment required, directed towards the guide ruler Force component can surprisingly by itself inclined transport rollers are generated, though this only with a narrow edge area of the arch in Come while the transport rollers are moving over the extend the entire sheet width. Is of increased importance however, the pressing force with which the transport rollers are loaded against the transport rollers. thats why in the preferred embodiment, this pressing force is adjustable. Embodiments in which which the pressure force of at least certain transport rollers is individually adjustable while being used for other transport roles is adjustable in groups.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung und aus der Zeichnung, auf die Bezug genommen wird. In der Zeichnung zeigen:

  • Figur 1 schematisch in Draufsicht einen Bogentransport- und Ausrichttisch nach einer ersten Ausführungsform;
  • Figur 2 eine schematische Seitenansicht der in Figur 1 gezeigten Ausführungsform;
  • Figur 3 eine Detailansicht einer Transportrolle und ihrer Aufhängung;
  • Figur 4, 5 und 6 weitere Ausführungsformen in schematischer Draufsicht.
    • Further features and advantages of the invention will become apparent from the following description and from the drawing, to which reference is made. The drawing shows:
  • Figure 1 shows schematically in plan view a sheet transport and alignment table according to a first embodiment;
  • Figure 2 is a schematic side view of the embodiment shown in Figure 1;
  • Figure 3 is a detailed view of a transport roller and its suspension;
  • Figures 4, 5 and 6 further embodiments in a schematic plan view.

    • In einem Gestell 10 des Bogentransport- und Ausrichttisches sind angetriebene Transportwalzen 12 auf gleicher Höhe, parallel zueinander und in regelmäßigen Abständen drehbar gelagert. Die Transportwalzen 12 bilden gemeinsam eine Transportebene für die auszurichtenden Bögen 14, deren Transportrichtung in der Zeichnung jeweils durch einen Pfeil verdeutlicht ist. An dem Gestell 10 ist ein Führungslineal 16 befestigt, das sich in der Längsrichtung des Gestells 10 erstreckt. Die Achsen der Transportwalzen 12 bilden einen Winkel von 90° mit dem Führungslineal 16.In a frame 10 of the sheet transport and alignment table are driven transport rollers 12 at the same height, in parallel to each other and rotatably mounted at regular intervals. The transport rollers 12 together form a transport plane for the sheets 14 to be aligned, their transport direction each illustrated in the drawing by an arrow is. A guide ruler 16 is attached to the frame 10, which extends in the longitudinal direction of the frame 10. The axes of the transport rollers 12 form an angle of 90 ° with the guide ruler 16.

    Jeder Transportwalze 12 ist eine Transportrolle 18a oder 18b zugeordnet, wobei die Transportrollen 18a zylindrisch und die Transportrollen 18b annähernd halbkugelförmig sind. Wie aus Figur 3 hervorgeht, sind die Transportrollen 18a bzw. 18b am freien Ende eines der beiden Schenkel 20, 22 eines bügelförmigen Hebels 24 frei drehbar gelagert. Die beiden Schenkel 20, 22 dieses Hebels 24 sind durch einen Hebelarm 26 miteinander verbunden. Der Schenkel 22 ist rechtwinkelig zum Hebelarm 26 und auf einem Zapfen 28, der am Führungslineal 16 verschraubt ist, drehbar gelagert. Der andere Schenkel 20 bildet mit dem Hebelarm 26 einen Winkel von etwas mehr als 90°, beispielsweise 95°. Der Schenkel 20 erstreckt sich jeweils durch eine Öffnung 30 im Führungslineal 16 von dessen dem Bogen abgewandter Seite auf seine Ausrichtseite. Da der Durchmesser der Transportrollen 18 die lichte Weite der Öffnungen 30 übersteigt, sind die Transportrollen 18a bzw. 18b jeweils auf ein durch eine Öffnung 30 ragendes freies Ende des Schenkels 20 aufgeschoben und mit Schnappsitz in Axialrichtung darauf gesichert.Each transport roller 12 is a transport roller 18a or 18b assigned, wherein the transport rollers 18a cylindrical and the transport rollers 18b are approximately hemispherical. How 3 shows, the transport rollers 18a and 18b at the free end of one of the two legs 20, 22 one bow-shaped lever 24 freely rotatable. The two Legs 20, 22 of this lever 24 are by a lever arm 26 connected to each other. The leg 22 is rectangular to the lever arm 26 and on a pin 28 which is on the guide ruler 16 is screwed, rotatably mounted. The other Leg 20 forms an angle with the lever arm 26 slightly more than 90 °, for example 95 °. The leg 20 extends each through an opening 30 in the guide ruler 16 from its side facing away from the arch to its alignment side. Since the diameter of the transport rollers 18 the the clear width of the openings 30, the transport rollers 18a and 18b each through an opening 30 protruding free end of the leg 20 pushed and secured with a snap fit in the axial direction.

    Wie aus Figur 1 ersichtlich ist, befindet sich jede der Transportrollen 18a, 18b senkrecht über der zugehörigen Transportwalze, jedoch ist ihre Achse gegenüber der Achse der Transportwalze um einen Winkel geneigt, der mit dem Neigungswinkel des Schenkels 20 zum Schenkel 22 des Hebels 24 übereinstimmt. Dieser Winkel kann etwa 5° betragen.As can be seen from Figure 1, each of the Transport rollers 18a, 18b vertically above the associated one Transport roller, however, its axis is opposite to the axis the feed roller is inclined at an angle with the Angle of inclination of the leg 20 to the leg 22 of the lever 24 matches. This angle can be approximately 5 °.

    Die Transportrollen 18a, 18b werden bereits durch ihr Eigengewicht und das Gewicht ihrer Aufhängung am Führungslineal zu den Transportwalzen 12 hin belastet. Zur Erhöhung der Andruckkraft sind ihre Achsen jedoch zusätzlich gegen die Transportwalzen beaufschlagt. Die zusätzliche Andruckkraft wird durch einen gespannten Draht 32 erzeugt, der jeweils einen Lagerzapfen 28 und einen vom Hebelarm 26 abragenden Stift 34 teilweise umschlingt. Die durch den Draht 32 erzeugte Andruckkraft wird durch seine Spannung bestimmt. Diese Spannung kann mittels einer Spannvorrichtung 36 am einen Ende des Führungslineals 16 eingestellt werden.The transport rollers 18a, 18b are already by their own weight and the weight of their suspension on the ruler loaded towards the transport rollers 12. To increase the However, their axes are additionally pressing against the Transport rollers acted on. The additional pressure force is generated by a tensioned wire 32, each a bearing pin 28 and one protruding from the lever arm 26 Pin 34 partially wraps around. The one generated by the wire 32 Contact pressure is determined by its tension. This tension can be by means of a tensioning device 36 one end of the guide ruler 16 can be set.

    Die halbkugelförmigen Transportrollen 18b haben gegenüber den zylinderförmigen 18a den Vorteil, daß sie nur mit einem sehr schmalen Randbereich entlang der Ausrichtkante des Führungslineals 16 in Eingriff kommen und somit im druckfreien Raum des Bogens verbleiben. Es kann daher keine Aufnahme von Druckerschwärze oder Farbe an diesen Transportrollen erfolgen. Die zylindrischen Transportrollen 18a werden nur im Einlauf des Bogentransport- und Ausrichttisches benötigt, wo die Bögen noch streuen und sich etwa 10 mm von der Ausrichtkante des Führungslineals 16 entfernt befinden können. Die breitere Eingriffsfläche der zylindrischen Transportrollen 18a gewährleistet hier, daß der Bogen schnell und sicher erfaßt sowie an die Ausrichtkante des Führungslineals 16 befördert wird. The hemispherical transport rollers 18b face each other the cylindrical 18a the advantage that it can only be used with one very narrow edge area along the alignment edge of the Guide rulers 16 engage and thus in the pressure-free Space of the arch remain. Therefore it cannot Ink or ink are absorbed on these transport rollers respectively. The cylindrical transport rollers 18a are only in the infeed of the sheet transport and alignment table needed where the sheets are still scattered and about 10 mm from the alignment edge of the guide ruler 16 are removed can. The wider engagement surface of the cylindrical Transport rollers 18a ensures here that the sheet quickly and safely detected and to the alignment edge of the Guide rulers 16 is promoted.

    Im Betrieb zeigt sich, daß trotz der senkrechten Anordnung der Transportwalzen 12 zum Führungslineal 16 eine zum Führungslineal 16 hin gerichtete Kraftkomponente F am einlaufenden Bogen 14 erzeugt wird. Diese Kraftkomponente F wird durch die Schrägstellung der Transportrollen 18a bzw. 18b erzeugt.In operation it shows that despite the vertical arrangement of the transport rollers 12 to the guide ruler 16 and one to the guide ruler 16 directed force component F at the incoming Arc 14 is generated. This force component F will by the inclination of the transport rollers 18a and 18b generated.

    Bei der Ausführungsform nach den Figuren 1-3 werden sämtliche Transportrollen 18a, 18b durch einen einzigen gespannten Draht 32 gleichzeitig und mit derselben Andruckkraft beaufschlagt. Die Ausführungsform nach Figur 4 unterscheidet sich von der nach den Figuren 1-3 lediglich dadurch, daß zwei Gruppen von Transportrollen gebildet sind, denen jeweils ein gespannter Draht 32a bzw. 32b zugeordnet ist, um die beiden Gruppen von Transportrollen mit verschiedenen Andruckkräften zu beaufschlagen. Überdies sind einzelne Einstellvorrichtungen 38a, 38b vorgesehen, durch die jeweils eine Transportrolle mit einer individuell einstellbaren Andruckkraft beaufschlagt werden kann.In the embodiment according to FIGS. 1-3, all Transport rollers 18a, 18b by a single tensioned Wire 32 applied simultaneously and with the same pressure force. The embodiment of Figure 4 differs differs from that according to FIGS. 1-3 only in that two groups of transport rollers are formed, each of which a tensioned wire 32a or 32b is assigned to the two groups of transport rollers with different To apply pressure forces. Moreover, there are individual adjustment devices 38a, 38b provided by each a transport roller with an individually adjustable pressure can be applied.

    Die Ausführungsform nach Figur 5 unterscheidet sich von der nach Figur 1 dadurch, daß beiderseits des Transportweges der Bögen 14 je ein Führungslineal 16a bzw. 16b mit den zugehörigen Transportrollen vorgesehen ist. Die Bögen 14 können daher bedarfsweise links oder rechts am Führungslineal 16a bzw. 16b ausgerichtet werden.The embodiment of Figure 5 differs from that according to Figure 1 in that on both sides of the transport route Sheets 14 each have a guide ruler 16a or 16b with the associated Transport rollers is provided. The arches 14 can therefore, if necessary, on the left or right of the guide ruler 16a or 16b are aligned.

    Die Figur 6 zeigt schließlich eine Abwandlung der Ausführungsform nach Figur 1, die lediglich darin besteht, daß nur halbkugelförmige Transportrollen 18b verwendet werden. Diese Ausführungsform wird in Verbindung mit einem Eckfördertisch (nicht gezeigt) verwendet, von dem die Bögen 14 parallel zu den Transportwalzen 12 und gegen das Führungslineal 16 zugeführt werden. Durch die Rundung der Transportrollen 18b können die Bögen 14 unter diese Transportrollen gleiten, bis sie mit deren Wirkfläche in Eingriff kommen.Figure 6 finally shows a modification of the embodiment according to Figure 1, which consists only in that only hemispherical transport rollers 18b are used. This Embodiment is used in conjunction with a corner conveyor table (not shown) used, of which the sheets 14 are parallel to fed to the transport rollers 12 and against the guide ruler 16 become. By rounding the transport rollers 18b the sheets 14 slide under these transport rollers until they come into engagement with their active surface.

    Claims (7)

    1. An apparatus for transporting and aligning sheets of paper, comprising at least one aligning straightedge (16), driven transporting cylinders (12) arranged transversely to the straightedge and freely rotatable transport rolls (18a, 18b) arranged adjacent to the straightedge (16) and being biased against the envelope of the transporting cylinders, characterized in that each of the transport rolls (18a, 18b) is deflectably supported on a lever (24) pivotally mounted at the straightedge (16) and bent at a right angle, and that the lever (24) is formed as a stirrup having a first limb (22) mounted rotatably about its axis on one side of the straightedge (16), a second limb (20) extending through an opening of the straightedge (16) to the other side of the straightedge (16) and having a transport roll (18a, 18b) rotatably mounted at the free end of the second limb, and a lever arm (26) connecting the limbs (20, 22).
    2. The apparatus according to claim 1, characterized in that the contact pressure by which the transport rolls (18a, 18b) are biased against the transporting cylinders (12) is adjustable.
    3. The apparatus according to claim 2, characterized in that the contact pressure of at least particular ones of the transport rolls (18a, 18b) is individually adjustable.
    4. The apparatus according to claim 2, characterized in that the contact pressure of at least a group of transport rolls (18a, 18b) is commonly adjustable.
    5. The apparatus according to claim 4, characterized in that the contact pressure of the group of transport rolls (18a, 18b) is adjusted by a tensioned wire (32) engaging the shafts of the transport rolls.
    6. The apparatus according to any one of the preceding claims, characterized in that the first limb (22) is arranged at a right angle and the second limb (20) is arranged at an angle of more than 90° with respect to the straightedge (16).
    7. The apparatus according to any one of the preceding claims, characterized in that a straightedge (16a, 16b) with associated transport rolls (18a, 18b) is provided along each of the side walls of the transport path defined by the transporting cylinders (12).
    EP95116183A 1994-10-13 1995-10-13 Sheet transport and alignment apparatus Expired - Lifetime EP0706963B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE4436681 1994-10-13
    DE4436681A DE4436681A1 (en) 1994-10-13 1994-10-13 Sheet transport and alignment device

    Publications (2)

    Publication Number Publication Date
    EP0706963A1 EP0706963A1 (en) 1996-04-17
    EP0706963B1 true EP0706963B1 (en) 1999-03-31

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95116183A Expired - Lifetime EP0706963B1 (en) 1994-10-13 1995-10-13 Sheet transport and alignment apparatus

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    EP (1) EP0706963B1 (en)
    DE (2) DE4436681A1 (en)

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10212496B4 (en) * 2002-03-21 2007-05-31 Kolbus Gmbh & Co. Kg Device for transporting and laterally aligning individual sheets

    Family Cites Families (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE569693C (en) * 1929-04-06 1933-02-06 Camco Machinery Ltd Alignment device for roller conveyor tables of paper folding machines or the like.
    US2464173A (en) * 1945-11-02 1949-03-08 Broadmeyer Albert Conveyer and guide
    US3179406A (en) * 1962-02-12 1965-04-20 Ibm Sheet handling apparatus
    US4775142A (en) * 1987-02-26 1988-10-04 Pitney Bowes Inc. Roller apparatus for side registration of documents
    GB2232661B (en) * 1989-04-24 1994-01-26 Pitney Bowes Inc A transport deck module and a universal modular transport system for envelopes.
    DD297621B5 (en) 1990-09-07 1997-01-23 Brehmer Buchbindereimaschinen Transport and alignment device of sheets

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    Publication number Publication date
    DE59505493D1 (en) 1999-05-06
    EP0706963A1 (en) 1996-04-17
    DE4436681A1 (en) 1996-04-18

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