EP0839746A1 - Device for conveying sheets - Google Patents

Device for conveying sheets Download PDF

Info

Publication number
EP0839746A1
EP0839746A1 EP97810808A EP97810808A EP0839746A1 EP 0839746 A1 EP0839746 A1 EP 0839746A1 EP 97810808 A EP97810808 A EP 97810808A EP 97810808 A EP97810808 A EP 97810808A EP 0839746 A1 EP0839746 A1 EP 0839746A1
Authority
EP
European Patent Office
Prior art keywords
actuator
crank
grippers
lever arm
rotary drive
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
EP97810808A
Other languages
German (de)
French (fr)
Other versions
EP0839746B1 (en
Inventor
Felix Kramer
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.)
Grapha Holding AG
Original Assignee
Grapha Holding AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grapha Holding AG filed Critical Grapha Holding AG
Publication of EP0839746A1 publication Critical patent/EP0839746A1/en
Application granted granted Critical
Publication of EP0839746B1 publication Critical patent/EP0839746B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/045—Details of grippers
    • B65H29/047—Gripper opening devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/003—Delivering or advancing articles from machines; Advancing articles to or into piles by grippers

Definitions

  • the invention relates to a device for conveying Print sheets through at regular intervals on an endless revolving traction means attached by control means against the Force of a spring in the open position movable gripper, wherein as a control means drivable from a rest position a lever arm of a movable gripper part acting actuator is provided.
  • Such devices have stations along a conveyor path on, for checking or further processing of the Allow printing sheets to remove the printing sheets.
  • a lever acting on the movable gripper part was used as the actuating element, which is put into operation by a spring biased by means of a pneumatic piston-cylinder unit via a pawl to be released to open a gripper.
  • the opening system was exposed to heavy wear due to the sudden stress under relatively high forces and a shooting-like noise was generated. In terms of control technology, this requires a high level of effort that cannot be overlooked.
  • the object of the present invention is a Establishment of the type mentioned above, which does not impacted by sudden high forces and acoustically is not distracting.
  • this object is achieved in that the actuating member is pivotally mounted on the end facing away from the lever arm of the movable gripper part and is pivotally coupled between the ends to a handlebar mounted on a rotating crank.
  • FIGS. 1 and 2 show excerpts of a conveyor 1 or a transporter for transporting printed products 2, which are releasably clamped in their edge area in grippers 3, so that they assume a hanging position during transport.
  • the conveyor 1 is suspended in a guide arrangement 4 and has a chain-like, endlessly rotating traction means 5, to which the grippers 3, which can be moved into an open or closed position, are fastened at regular intervals.
  • the conveyor device 1 or the guide arrangement 4 runs in spatial changes in direction via at least one processing station, which is not illustrated in the drawing.
  • the grippers 3 consist of a stationary gripper part 9 fastened to the traction means 5 and a movable gripper part 10 which, by means of an actuator 11 to be described later, moves against spring force (see torsion spring) to open the grippers 3 and to a guide rail running along the guide arrangement 4 12 to keep the gripper 3 open.
  • FIG. 1 shows a gripper 3 in the closed position with a printing sheet 2 in the conveying direction in front of the actuator 11 and an open gripper 3, the movable gripper part 10 has been displaced by the actuator 11 to the guide rail 12, where the gripper 3 in the open state linger for a short time.
  • actuate the grippers 3 they have a lever arm 13 which is fixedly connected to the movable gripper part 10 and which is provided at the free end with a roller 35 which is acted upon by the actuating member 11 deflected from a rest position and thereby opens the gripper 3 and the roller 35 leads to the guide rail 12.
  • the end of the actuating member 11 is designed as a cam track 14, which ensures an approximately continuous transition of the roller 35 at the free end of the lever arm 13 of the movable gripper part 10 onto the guide rail 12.
  • the actuating member 11 is designed as a lever and, with the end facing away from the cam track, is rotatably mounted in a support 15 fastened to the guide arrangement 4 in order to carry out a pivoting movement.
  • a shaft 16 is provided which extends transversely to the longitudinal extent of the guide arrangement 4 and has an actuating member 11 acting on the lever arms 13 of the movable gripper part 10 at both ends.
  • the support 15 consists, inter alia, of two opposing bearing housings 17 in which the shaft 16 is supported by means of roller bearings 18.
  • the actuating member 11 is each connected to the shaft 16 by a wedge 19 and clamped thereon against axial displacement in a known manner (by means of a clamping hub). By the way, the rest position of the actuating member 11 is shown in FIG. 1 with a dash-dotted line.
  • the actuator 11 is drive-connected to a rotating crank 21 via a link 20.
  • a bore 22 designed as a clamping hub is provided approximately in the middle of the actuating member 11, into which a bearing pin 23 projecting from the actuating member 11 is firmly inserted.
  • This bearing pin 23 is axially immovably locked in the one-sided fork-shaped link 20 by retaining rings 24 and is supported in roller bearings 25.
  • a spacer ring 26 is arranged between each roller bearing 25 and the actuating member 11.
  • the opposite end of the actuator 11 is supported on a crank pin 27 clamped in the crank 21 and is also roller-mounted and axially secured for this purpose.
  • the crank 21 in turn sits on the drive shaft 28 of an electric motor, servo motor, stepper motor or a stepping device 29, which is controlled for incremental rotary movements.
  • crank 21 can be driven by controlling the electric motor 29 or by means of a stepping drive connected downstream of the electric motor 29, for example by means of a stepping device which can be coupled and braked and which is connected to a permanently rotating electric motor 29.
  • the stepping device may be a known electromagnetic Mayr clutch and brake unit, that while rotating the electric motor alternately Clutches and brakes are operated and this way opening the grippers via the device according to the invention 3 causes.
  • a control rotor 30 attached to a stationary initiator 31 interacts and initiates braking of the crank 21 or keeps the actuator 11 in the rest position.
  • the rest position of the actuator 11 can as in 1 can be changed by moving the initiator 31.
  • the control rotor 30 is formed as a double vane from two opposing vanes 32, 33, one vane of which initiates the rest position of the actuating member 11 and the other vane initiates the operating position of the actuating member 11.
  • the start from the rest or operating position of the actuating member 11 takes place via a control of the device, which can be superordinate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)

Abstract

The mechanism to transport printed sheets has an operating unit (11) on a pivot mounting at the end of the gripper (10) away from the lever arm (13). It has a swing movement through a coupling between the ends with a link (20) from a crank. The crank is connected to a rotary drive as a step drive unit, to move the crank by 180 degrees .

Description

Die Erfindung betrifft eine Einrichtung zum Fördern von Druckbogen durch in regelmässigen Abständen an einem endlos umlaufenden Zugmittel befestigte, durch Steuermittel gegen die Kraft einer Feder in Offenstellung versetzbare Greifer, wobei als Steuermittel ein aus einer Ruhestellung antreibbares, auf einen Hebelarm eines bewegbaren Greiferteils einwirkendes Betätigungsorgan vorgesehen ist.The invention relates to a device for conveying Print sheets through at regular intervals on an endless revolving traction means attached by control means against the Force of a spring in the open position movable gripper, wherein as a control means drivable from a rest position a lever arm of a movable gripper part acting actuator is provided.

Derartige Einrichtungen weisen entlang eines Förderweges Stationen auf, die zur Ueberprüfung oder Weiterverarbeitung der Druckbogen eine Entnahme der Druckbogen ermöglichen.Such devices have stations along a conveyor path on, for checking or further processing of the Allow printing sheets to remove the printing sheets.

Bei einer bekannten Einrichtung der eingangs beschriebenen Art wurde als Betätigungsorgan eine auf den bewegbaren Greiferteil einwirkender Hebel verwendet, der durch eine mittels pneumatischer Kolben-Zylindereinheit vorgespannten Feder über eine auszulösende Klinke zur Oeffnung eines Greifers in Betrieb gesetzt wird.
Damit wurde das Oeffnungssystem durch die schlagartige Beanspruchung unter relativ hohen Kräften einem starken Verschleiss ausgesetzt und ein schiessartiger Lärm erzeugt. Steuerungstechnisch ist dazu ein nicht übersehbarer hoher Aufwand erforderlich.In a known device of the type described above, a lever acting on the movable gripper part was used as the actuating element, which is put into operation by a spring biased by means of a pneumatic piston-cylinder unit via a pawl to be released to open a gripper.
As a result, the opening system was exposed to heavy wear due to the sudden stress under relatively high forces and a shooting-like noise was generated. In terms of control technology, this requires a high level of effort that cannot be overlooked.

Die Aufgabe der vorliegenden Erfindung besteht darin, eine Einrichtung der eingangs genannten Art zu schaffen, die nicht durch schlagartig einwirkende hohe Kräfte belastet und akustisch nicht störend ist.The object of the present invention is a Establishment of the type mentioned above, which does not impacted by sudden high forces and acoustically is not distracting.

Erfindungsgemäss wird diese Aufgabe dadurch gelöst, dass das Betätigungsorgan an dem von dem Hebelarm des bewegbaren Greiferteils abgewandten Ende schwenkbar gelagert und zwischen den Enden mit einem an einer umlaufenden Kurbel lagernden Lenker schwenbar gekoppelt ist.
Dadurch werden auf die Einrichtung Schläge ausübende Kräfte, die sich auch auf die Umgebung störend auswirken, weitgehend vermieden und es entsteht ein stufenloser Uebergang bei der Auslösung der Oeffnung der Greifer.According to the invention, this object is achieved in that the actuating member is pivotally mounted on the end facing away from the lever arm of the movable gripper part and is pivotally coupled between the ends to a handlebar mounted on a rotating crank.
As a result, forces exerting impacts on the device, which also have a disruptive effect on the environment, are largely avoided and a stepless transition occurs when the opening of the grippers is triggered.

Anschliessend wird die Erfindung unter Bezugnahme auf die Zeichnung, auf die bezüglich aller in der Beschreibung nicht näher erwähnten Einzelheiten ausdrücklich verwiesen wird, anhand eines Ausführungsbeipiels erläutert. In der Zeichnung zeigen:

Fig. 1
eine Ansicht einer erfindungsgemässen Ausführung,
Fig. 2
einen Querschnitt durch die Ausführung gemäss der Linie II - II in Fig. 1 und
Fig. 3
einen Schnitt durch die Ausführung gemäss der Linie III - III in Fig. 1.
The invention is subsequently explained with reference to the drawing, to which reference is expressly made with regard to all details not mentioned in the description, using an exemplary embodiment. The drawing shows:
Fig. 1
2 shows a view of an embodiment according to the invention,
Fig. 2
a cross section through the design along the line II - II in Fig. 1 and
Fig. 3
a section through the execution along the line III - III in Fig. 1st

Fig. 1 und 2 zeigen auszugsweise eine Fördereinrichtung 1 oder einen Transporteur zum Transport von Druckprodukten 2, die in ihrem Randbereich in Greifern 3 lösbar eingeklemmt sind, so dass sie beim Transport eine Hängelage einnehmen.
Die Fördereinrichtung 1 ist in einer Führungsanordnung 4 aufgehängt und weist ein kettenartiges, endlos umlaufendes Zugmittel 5 auf, an dem die in eine Oeffnungs- oder Schliessstellung versetzbaren Greifer 3 in regelmässigen Abständen befestigt sind. Die Fördereinrichtung 1 bzw. die Führungsanordnung 4 verläuft in räumlichen Richtungsänderungen über wenigstens eine Verarbeitungsstation, die in der Zeichnung nicht veranschaulicht ist. Als Führungsanordnung 4 sind zwei sich gegenüberliegende Profilschienen 6 vorgesehen, in denen jeweils eine auf die Längsmittelachse der Führungsanordnung 4 gleichmässig verteilte Rolle 7 läuft, die auf einem in den Gelenkachsen 8 des Zugmittels 5 angeordneten, nach beiden Seiten abstehenden Wellenzapfen frei drehbar gelagert ist. Die Greifer 3 bestehen aus einem an dem Zugmittel 5 befestigten, stationären Greiferteil 9 und einem beweglichen Greiferteil 10, der durch ein noch zu beschreibendes Betätigungsorgan 11 gegen Federkraft (siehe Torsionsfeder) zur Oeffnung der Greifer 3 bewegt und an eine entlang der Führungsanordnung 4 verlaufende Führungsschiene 12 zum Offenhalten der Greifer 3 versetzt wird.
Fig. 1 zeigt jeweils einen Greifer 3 in geschlossener Stellung mit einem Druckbogen 2 in Förderrichtung vor dem Betätigungsorgan 11 und einen geöffneten Greifer 3, dessen beweglicher Greiferteil 10 durch das Betätigungsorgan 11 an die Führungsschiene 12 versetzt worden ist, wo die Greifer 3 in geöffnetem Zustand kurze Zeit verweilen. Zur Betätigung der Greifer 3 weisen diese einen mit dem beweglichen Greiferteil 10 fest verbundenen Hebelarm 13 auf, der am freien Ende mit einer Laufrolle 35 versehen ist, die von dem aus einer Ruhestellung ausgelenkten Betätigungsorgan 11 beaufschlagt wird und den Greifer 3 dabei öffnet und die Laufrolle 35 auf die Führungsschiene 12 leitet. Dazu ist das Ende des Betätigungsorgans 11 als Kurvenbahn 14 ausgebildet, die einen etwa stetig verlaufenden Uebergang der Laufrolle 35 am freien Ende des Hebelarms 13 des beweglichen Greiferteils 10 auf die Führungsschiene 12 gewährleistet.
Das Betätigungsorgan 11 ist als Hebel ausgebildet und mit dem von der Kurvenbahn abgewandten Ende in einem an der Führungsanordnung 4 befestigten Support 15 zur Ausübung einer Schwenkbewegung drehbar gelagert. Dazu ist eine Welle 16 vorgesehen, die quer zur Längserstreckung der Führungsanordnung 4 verläuft und an beiden Enden jeweils ein auf die Hebelarme 13 des beweglichen Greiferteils 10 einwirkendes Betätigungsorgan 11 aufweist. Diese doppelseitige Ausführung der erfindungsgemässen Einrichtung 1 ist etwa gleichmässig auf die senkrechte Längsmittelebene der Führungsanordnung 4 verteilt, damit beim Oeffnen der Greifer 3 an diesen kein Verdrehungseffekt entstehen kann. Der Support 15 besteht u.a. aus zwei sich gegenüberliegenden Lagergehäusen 17, in denen die Welle 16 mittels Wälzlagern 18 gelagert ist. Das Betätigungsorgan 11 ist jeweils durch einen Keil 19 mit der Welle 16 verbunden und an dieser gegen axiales Verschieben auf bekannte Weise (durch eine Klemmnabe) festgeklemmt.
Mit strichpunktierter Linie ist übrigens die Ruhestellung des Betätigungsorgans 11 in Fig. 1 dargestellt. Das Betätigungsorgan 11 ist über einen Lenker 20 mit einer umlaufenden Kurbel 21 antriebsverbunden. Hierzu ist etwa in der Mitte des Betätigungsorgans 11 eine als Klemmnabe ausgebildete Bohrung 22 vorgesehen, in die ein das Betätigungsorgan 11 überstehender Lagerbolzen 23 fest eingesetzt ist. Dieser Lagerbolzen 23 ist in dem einseitig gabelförmig geformten Lenker 20 durch Sicherungsringe 24 axial unverschiebbar arretiert und in Wälzlagern 25 abgestützt. Zwischen jedem Wälzlager 25 und dem Btätigungsorgan 11 ist ein Distanzring 26 angeordnet.
Das gegenüberliegende Ende des Betätigungsorgans 11 lagert auf einem in der Kurbel 21 eingespannten Kurbelzapfen 27 und ist zu diesem Zweck ebenfalls wälzgelagert sowie axial gesichert. Die Kurbel 21 wiederum sitzt auf der Antriebswelle 28 eines Elektromotors, Servomotors, Schrittmotors oder einer Schrittschaltvorrichtung 29, der/die für schrittweise Drehbewegungen gesteuert ist. Zur Auslenkung des Betätigungsorgans 11 aus der Ruhestellung in die Betriebsstellung der Einrichtung und zurück, ist jeweils eine halbe Kurbelumdrehung vorgesehen. Der Antrieb der Kurbel 21 kann durch Steuerung des Elektromotors 29 oder durch einen dem Elektromotor 29 nachgeschalteten Schrittantrieb erfolgen, beispielsweise durch eine kuppel- und bremsbare Schrittschaltvorrichtung, die mit einem permanent drehenden Elektromotor 29 verbunden ist.1 and 2 show excerpts of a conveyor 1 or a transporter for transporting printed products 2, which are releasably clamped in their edge area in grippers 3, so that they assume a hanging position during transport.
The conveyor 1 is suspended in a guide arrangement 4 and has a chain-like, endlessly rotating traction means 5, to which the grippers 3, which can be moved into an open or closed position, are fastened at regular intervals. The conveyor device 1 or the guide arrangement 4 runs in spatial changes in direction via at least one processing station, which is not illustrated in the drawing. As the guide arrangement 4, two opposing profile rails 6 are provided, in each of which a roller 7 runs evenly distributed on the longitudinal central axis of the guide arrangement 4 and is freely rotatably supported on a shaft journal which is arranged in the joint axes 8 of the traction means 5 and projects on both sides. The grippers 3 consist of a stationary gripper part 9 fastened to the traction means 5 and a movable gripper part 10 which, by means of an actuator 11 to be described later, moves against spring force (see torsion spring) to open the grippers 3 and to a guide rail running along the guide arrangement 4 12 to keep the gripper 3 open.
Fig. 1 shows a gripper 3 in the closed position with a printing sheet 2 in the conveying direction in front of the actuator 11 and an open gripper 3, the movable gripper part 10 has been displaced by the actuator 11 to the guide rail 12, where the gripper 3 in the open state linger for a short time. To actuate the grippers 3, they have a lever arm 13 which is fixedly connected to the movable gripper part 10 and which is provided at the free end with a roller 35 which is acted upon by the actuating member 11 deflected from a rest position and thereby opens the gripper 3 and the roller 35 leads to the guide rail 12. For this purpose, the end of the actuating member 11 is designed as a cam track 14, which ensures an approximately continuous transition of the roller 35 at the free end of the lever arm 13 of the movable gripper part 10 onto the guide rail 12.
The actuating member 11 is designed as a lever and, with the end facing away from the cam track, is rotatably mounted in a support 15 fastened to the guide arrangement 4 in order to carry out a pivoting movement. For this purpose, a shaft 16 is provided which extends transversely to the longitudinal extent of the guide arrangement 4 and has an actuating member 11 acting on the lever arms 13 of the movable gripper part 10 at both ends. This double-sided design of the device 1 according to the invention is distributed approximately uniformly on the vertical longitudinal center plane of the guide arrangement 4, so that when the grippers 3 are opened there can be no twisting effect on them. The support 15 consists, inter alia, of two opposing bearing housings 17 in which the shaft 16 is supported by means of roller bearings 18. The actuating member 11 is each connected to the shaft 16 by a wedge 19 and clamped thereon against axial displacement in a known manner (by means of a clamping hub).
By the way, the rest position of the actuating member 11 is shown in FIG. 1 with a dash-dotted line. The actuator 11 is drive-connected to a rotating crank 21 via a link 20. For this purpose, a bore 22 designed as a clamping hub is provided approximately in the middle of the actuating member 11, into which a bearing pin 23 projecting from the actuating member 11 is firmly inserted. This bearing pin 23 is axially immovably locked in the one-sided fork-shaped link 20 by retaining rings 24 and is supported in roller bearings 25. A spacer ring 26 is arranged between each roller bearing 25 and the actuating member 11.
The opposite end of the actuator 11 is supported on a crank pin 27 clamped in the crank 21 and is also roller-mounted and axially secured for this purpose. The crank 21 in turn sits on the drive shaft 28 of an electric motor, servo motor, stepper motor or a stepping device 29, which is controlled for incremental rotary movements. To deflect the actuator 11 from the rest position into the operating position of the device and back, a half turn of the crank is provided. The crank 21 can be driven by controlling the electric motor 29 or by means of a stepping drive connected downstream of the electric motor 29, for example by means of a stepping device which can be coupled and braked and which is connected to a permanently rotating electric motor 29.

Die Schrittschaltvorrichtung kann ein bekanntes elektromagnetisches Kupplungs- und Bremsaggregat der Marke Mayr sein, das während andauerndem Drehen des Elektromotors durch wechselweises Kuppeln und Bremsen betrieben wird und auf diese Weise über die erfindungsgemässe Einrichtung das Oeffnen der Greifer 3 bewirkt.The stepping device may be a known electromagnetic Mayr clutch and brake unit, that while rotating the electric motor alternately Clutches and brakes are operated and this way opening the grippers via the device according to the invention 3 causes.

An der Antriebswelle 28 der Schrittschaltvorrichtung 29 ist ein Steuerrotor 30 befestigt, der mit einem stationären Initiator 31 zusammenwirkt und die Bremsung der Kurbel 21 einleitet bzw. das Betätigungsorgan 11 in der Ruheposition stillhält. Die Ruheposition des Betätigungsorgans 11 kann wie in Fig. 1 gezeigt durch Versetzen des Initiators 31 geändert werden.On the drive shaft 28 of the stepping device 29 a control rotor 30 attached to a stationary initiator 31 interacts and initiates braking of the crank 21 or keeps the actuator 11 in the rest position. The rest position of the actuator 11 can as in 1 can be changed by moving the initiator 31.

Der Steuerrotor 30 ist als Doppelflügel aus zwei sich gegenüberliegenden Flügeln 32, 33 ausgebildet, wovon der eine Flügel jeweils die Ruhestellung des Beätigungsorgans 11 und der andere Flügel die Betriebsstellung des Betätigungsorgans 11 initiiert.
Der Start aus der Ruhe- oder Betriebsstellung des Betätigungsorgans 11 erfolgt über eine Steuerung der Einrichtung, die übergeordnet sein kann.The control rotor 30 is formed as a double vane from two opposing vanes 32, 33, one vane of which initiates the rest position of the actuating member 11 and the other vane initiates the operating position of the actuating member 11.
The start from the rest or operating position of the actuating member 11 takes place via a control of the device, which can be superordinate.

Claims (10)

Einrichtung zum Fördern von Druckbogen mittels in regelmässigen Abständen an einem endlos umlaufenden Zugmittel (5) befestigten, durch Steuermittel gegen die Kraft einer Feder (34) in Offenstellung versetzbaren Greifern (3), wobei als Steuermittel ein aus einer Ruhestellung antreibbares, auf einen Hebelarm eines bewegbaren Greiferteils (10) einwirkendes Betätigungsorgan (11) vorgesehen ist, dadurch gekennzeichnet, dass das Betätigungsorgan (11) an dem von dem Hebelarm (13) des bewegbaren Greiferteils (10) abgewandten Ende schwenkbar gelagert und zwischen den Enden mit einem an einer umlaufenden Kurbel (21) lagernden Lenker (20) schwenkbar gekoppelt ist.Device for conveying printed sheets by means of at regular intervals on an endless circumferential traction means (5) attached by Control means against the force of a spring (34) grippers that can be moved in the open position (3), where as a control means from a rest position drivable, on a lever arm movable gripper part (10) acting Actuator (11) is provided, thereby characterized in that the actuator (11) on the of the lever arm (13) of the movable End of the gripper part (10) can be pivoted stored and with one between the ends a rotating crank (21) bearing handlebar (20) is pivotally coupled. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Kurbel (21) mit einem Drehantrieb (29) verbunden ist. Device according to claim 1, characterized in that the crank (21) with a rotary drive (29) is connected. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Drehantrieb (29) als Schrittantrieb ausgebildet ist.Device according to claim 2, characterized in that the rotary drive (29) as Stepper drive is formed. Einrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die schrittartige Drehbewegung der Kurbel (21) von jeweils 180° beträgt.Device according to claim 3, characterized in that the gradual rotary motion the crank (21) is 180 ° each. Einrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Schrittbewegung durch die maximale und minimale Auslenkung des Betätigungsorgans (11) begrenzt ist.Device according to claim 4, characterized in that the step movement through the maximum and minimum deflection of the actuator (11) is limited. Einrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die Schrittbewegung durch einen mit dem Drehantrieb (29) verbundenen, mit einem Initiator (31) zusammenwirkenden Steuerrotor (30) steuerbar ist.Device according to one of claims 2 to 5, characterized by the step movement through a connection to the rotary drive (29) cooperating with an initiator (31) Control rotor (30) is controllable. Einrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das mit dem Betätigungsorgan (11) verbundene Ende des Lenkers (20) gabelförmig ausgebildet ist. Device according to one of claims 1 to 6, characterized in that with the actuator (11) connected end of the handlebar (20) is fork-shaped. Einrichtung nach einem der Ansprüche 1 bis 7, mit Greifern (3), die beidseits des Zugmittels (5) an dem beweglichen Greiferteil (10) einen Hebelarm (13) aufweisen, der jeweils einem Betätigungsorgan (11) zugeordnet ist, dadurch gekennzeichnet, dass die Betätigungsorgane (11) an einer quer zur Fortbewegungsrichtung der Greifer (3) sich erstreckenden, in einer das Zugmittel (5) führenden Führungsanordnung (4) gelagerten Welle (16) befestigt sind.Device according to one of claims 1 to 7, with grippers (3) on both sides of the traction device (5) on the movable gripper part (10) Have lever arm (13), each one Actuator (11) is assigned, thereby characterized that the actuators (11) on a cross to the direction of travel the gripper (3) extending in one the traction means (5) guiding arrangement (4) mounted shaft (16) are attached. Einrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das/die auf die beweglichen Greiferteile (10) einwirkenden Betätigungsorgane (11) an dem den Hebelarmen (13) zugewandten Ende als Führungsbahn (14) einer anschliessenden, den geöffneten Greifern (3) zugeordneten, versetzten Führungsschiene (12) ausgebildet ist.Device according to one of claims 1 to 8, characterized in that the / the movable gripper parts (10) acting Actuators (11) on the lever arms (13) facing end as a guideway (14) a subsequent one, the open grippers (3) assigned, offset guide rail (12) is formed. Einrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Führungsschiene (12) parallel zum Zugmittel (5) verlaufend ausgebildet ist.Device according to claim 9, characterized in that the guide rail (12) is parallel trained to the traction means (5) is.
EP97810808A 1996-11-05 1997-10-30 Device for conveying sheets Expired - Lifetime EP0839746B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2728/96 1996-11-05
CH272896 1996-11-05
CH272896 1996-11-05

Publications (2)

Publication Number Publication Date
EP0839746A1 true EP0839746A1 (en) 1998-05-06
EP0839746B1 EP0839746B1 (en) 2002-01-16

Family

ID=4240276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810808A Expired - Lifetime EP0839746B1 (en) 1996-11-05 1997-10-30 Device for conveying sheets

Country Status (4)

Country Link
US (1) US6039317A (en)
EP (1) EP0839746B1 (en)
JP (1) JPH10175762A (en)
DE (1) DE59705999D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0937670B1 (en) * 1998-02-18 2004-12-29 Grapha-Holding Ag Device for charging a processing line with printed products
DE10105374A1 (en) * 2001-02-07 2002-08-08 Heidelberger Druckmasch Ag Boom of a sheet processing machine
EP1260471B1 (en) * 2001-05-25 2004-12-15 Ferag AG Device for gripping and transporting flat objects in a compact stream
JP3895726B2 (en) * 2003-12-26 2007-03-22 株式会社東京機械製作所 Origami stacker
TWI275484B (en) * 2004-10-15 2007-03-11 Bobst Sa Method and station for unblanked sheet delivery in a machine processing plate elements

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172802A (en) * 1991-09-17 1992-12-22 Am International Inc. Selective release assembly for gripper clamps
EP0561308A1 (en) * 1992-03-17 1993-09-22 Graphic Management Associates, Inc. Device with a traveling conveyor and grippers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172514A (en) * 1977-02-07 1979-10-30 Giddings & Lewis, Inc. High speed continuous assembly machine
NL9001682A (en) * 1990-07-24 1992-02-17 Staalkat Bv CARRIER FOR ARTICLES SUCH AS EGGS AND TRANSPORTATION DEVICES EQUIPPED WITH SUCH CARRIER.
SE469889B (en) * 1992-03-16 1993-10-04 Wamag Idab Ab Grapple conveyor with permanently prestressed clamping jaw
US5244078A (en) * 1992-03-17 1993-09-14 Graphic Management Associates, Inc. Selective gripper release

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172802A (en) * 1991-09-17 1992-12-22 Am International Inc. Selective release assembly for gripper clamps
EP0561308A1 (en) * 1992-03-17 1993-09-22 Graphic Management Associates, Inc. Device with a traveling conveyor and grippers

Also Published As

Publication number Publication date
JPH10175762A (en) 1998-06-30
US6039317A (en) 2000-03-21
EP0839746B1 (en) 2002-01-16
DE59705999D1 (en) 2002-02-21

Similar Documents

Publication Publication Date Title
EP0930248B1 (en) Device for sorting articles
EP2762427B1 (en) Device for turning an object
EP1640084B1 (en) Feeding device
DE102013101149A1 (en) Device for turning and transporting an object
EP0103104B1 (en) Device for advancing sheets or batches of sheets
EP0839746B1 (en) Device for conveying sheets
DE9116357U1 (en) Controllable gripper unit for sheet delivery in printing machines
DE10354673A1 (en) Sheet separator for use in rotary printers has gripper units with rollers at their upper ends which move over separate control cams
WO2021239185A1 (en) Workpiece support system
DE3619021C2 (en)
EP1148007B1 (en) Device to take out printed products from a conveying device by which they are transported in a regularly spaced manner
DE3133729C2 (en) Vibratory drive device
DE4229425A1 (en) Device for stacking and aligning individually fed sheets
DE2362680A1 (en) SYSTEM FOR PROMOTING PRINTED PRODUCTS IN A SHED STORAGE
DE1232595B (en) Gripper device on sheet conveyors
DE10155033B4 (en) Device for synchronization of transfers of sheet material
DE3701767C2 (en)
EP0232553A1 (en) Winding device for a continuously arriving imbricated batch of flexible flat products
EP1820660A2 (en) Book block transport system
DE68910095T2 (en) Handling device for flat plates, in particular sheet metal plates.
DE19939526B4 (en) Gripper for gripping flat products
DE2820315B2 (en) Sorting star for bottles or the like
EP0714844B1 (en) Device for releasing folded products
DE2932679C2 (en)
EP1717179A1 (en) Device for stablilizing printed products transported in a stream along a transport path, hanging in grippers of a transport device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17P Request for examination filed

Effective date: 19980918

AKX Designation fees paid

Free format text: CH DE FR GB IT LI

RBV Designated contracting states (corrected)

Designated state(s): CH DE FR GB IT LI

17Q First examination report despatched

Effective date: 20000724

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59705999

Country of ref document: DE

Date of ref document: 20020221

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020411

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060831

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060925

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20061017

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061031

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20070118

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20071030

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071031

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080501

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20080630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071030