EP0839746B1 - Device for conveying sheets - Google Patents

Device for conveying sheets Download PDF

Info

Publication number
EP0839746B1
EP0839746B1 EP97810808A EP97810808A EP0839746B1 EP 0839746 B1 EP0839746 B1 EP 0839746B1 EP 97810808 A EP97810808 A EP 97810808A EP 97810808 A EP97810808 A EP 97810808A EP 0839746 B1 EP0839746 B1 EP 0839746B1
Authority
EP
European Patent Office
Prior art keywords
actuating member
grippers
traction mechanism
connecting rod
gripper part
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
EP97810808A
Other languages
German (de)
French (fr)
Other versions
EP0839746A1 (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 printed sheets by at regular intervals on an endless rotating Traction means attached by control means against the force of one Spring in the open position movable gripper, being used as a control means a drivable from a rest position by a handlebar, Actuator acting on a lever arm between the ends of a gripper part is provided that at the end facing away from the gripper part Is pivoted.
  • Such devices have stations along a conveyor path on, for checking or further processing of the printed sheets allow removal of the printed sheets.
  • a device of the type described in the opening paragraph is disclosed in US Pat. No. 5,172,802.
  • a stationary hydraulic / mechanical actuator or reversing drive is provided as the control means, the drive shaft of which is connected to a pulley mounted on the frame via a drive belt.
  • An actuating member which causes the gripper opening has a control path which faces the grippers and which, in the operating position, pivots the movable gripper part, so that the gripper opens and releases the clamped product.
  • This opening takes place by means of a lever gear connected to the actuator, which consists of a one-armed lever connected in a rotationally fixed manner to the pulley and a handlebar connecting it to the actuating member.
  • Lever and handlebar form a knee joint, which is put into a stiffening position for moving the actuating member into the operating position and is bent when the actuating member is in the rest position, the rest position of the actuating member being achieved by the return spring.
  • the opening system is exposed to heavy wear and tear due to the sudden stress under relatively high forces, and a shooting-like noise is generated.
  • the object of the present invention is to provide a device of the type mentioned at the outset which is not burdened by abruptly acting high forces and is not acoustically disturbing.
  • this object is achieved in that the end of the handlebar facing away from the actuating member is coupled to the circumferential end of a crank connected to a rotary drive.
  • 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 moves against the spring force (see torsion spring) to open the grippers 3 by means of an actuating member 11 to be described 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 is rotatably mounted with the end facing away from the cam track 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, among other things, of two opposite 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). Incidentally, 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)

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 durch einen Lenker aus einer Ruhestellung antreibbares, auf einen Hebelarm zwischen den Enden eines Greiferteils einwirkendes Betätigungsorgan vorgesehen ist, das am vom Greiferteil abgewandten Ende Schwenkbar gelagert ist.The invention relates to a device for conveying printed sheets by at regular intervals on an endless rotating Traction means attached by control means against the force of one Spring in the open position movable gripper, being used as a control means a drivable from a rest position by a handlebar, Actuator acting on a lever arm between the ends of a gripper part is provided that at the end facing away from the gripper part Is pivoted.

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 printed sheets allow removal of the printed sheets.

In der US - A - 5'172'802 ist eine Einrichtung der eingangs beschriebenen Art offenbart. Als Steuermittel ist ein ortsfest angeordneter hydraulisch/mechanischer Stellantrieb bzw. Reversierantrieb vorgesehen, dessen Antriebswelle über einen Antriebsriemen mit einem gestellfest gelagerten Pulley verbunden ist. Ein die Greiferöffnung bewirkendes Betätigungsorgan weist eine den Greifern zugewandte Steuerbahn auf, die in der Betriebslage den beweglichen Greiferteil verschwenkt, sodass sich der Greifer öffnet und das eingespannte Produkt löst.
Dieses Oeffnen erfolgt durch ein mit dem Stellantrieb verbundenes Hebelgetriebe, das aus einem mit dem Pulley drehfest verbundenen einarmigen Hebel und einem diesen mit dem Betätigungsorgan verbindenden Lenker besteht. Hebel und Lenker bilden ein Kniegelenk, das zur Versetzung des Betätigungsorgans in die Betriebslage in eine Versteifungsstellung versetzt und bei Ruhelage des Betätigungsorgans geknickt ist, wobei die Ruhelage des Betätigungsorgans durch die Rückstellfeder erreicht wird.
Damit wird das Oeffnungssystem durch die schlagartige Beanspruchung unter relativ hohen Kräften einem starken Verschleiss ausgesetzt und ein schiessartiger Lärm erzeugt. 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.A device of the type described in the opening paragraph is disclosed in US Pat. No. 5,172,802. A stationary hydraulic / mechanical actuator or reversing drive is provided as the control means, the drive shaft of which is connected to a pulley mounted on the frame via a drive belt. An actuating member which causes the gripper opening has a control path which faces the grippers and which, in the operating position, pivots the movable gripper part, so that the gripper opens and releases the clamped product.
This opening takes place by means of a lever gear connected to the actuator, which consists of a one-armed lever connected in a rotationally fixed manner to the pulley and a handlebar connecting it to the actuating member. Lever and handlebar form a knee joint, which is put into a stiffening position for moving the actuating member into the operating position and is bent when the actuating member is in the rest position, the rest position of the actuating member being achieved by the return spring.
As a result, the opening system is exposed to heavy wear and tear due to the sudden stress under relatively high forces, and a shooting-like noise is generated. The object of the present invention is to provide a device of the type mentioned at the outset which is not burdened by abruptly acting high forces and is not acoustically disturbing.

Erfindungsgemäss wird diese Aufgabe dadurch gelöst, dass das von dem Betätigungsorgan abgewandte Ende des Lenkers mit dem umlaufenden Ende einer mit einem Drehantrieb verbundenen Kurbel 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 end of the handlebar facing away from the actuating member is coupled to the circumferential end of a crank connected to a rotary drive.
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 moves against the spring force (see torsion spring) to open the grippers 3 by means of an actuating member 11 to be described 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 is rotatably mounted with the end facing away from the cam track 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, among other things, of two opposite 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).
Incidentally, 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, half a crank rotation 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 (7)

  1. Device for conveying printed sheets by means of grippers (3) which are secured at regular intervals to an endless traction mechanism (5) and can be moved into an open position against the force of a spring by control means, an actuating member (11) which can be driven out of a rest position by a connecting rod (20) and acts on a lever arm between the ends of a gripper part (10) being provided as the control means and being rotatably mounted at the end directed away from the gripper part (10), characterised in that the end of the connecting rod (20) directed away from the actuating member (11) is coupled to the rotating end of a crank (21) connected to a rotary drive (29).
  2. Device according to claim 1, characterised in that the rotary drive (29) is in the form of a stepper drive and exerts a step-like rotary motion of 180° for maximum and minimum deflection of the actuating member (11).
  3. Device according to claim 2, characterised in that the stepping motion can be controlled by a control rotor (30) connected to the rotary drive (29) and cooperating with an initiator (31).
  4. Device according to one of claims 1 to 3, characterised in that the end of the connecting rod (20) connected to the actuating member (11) is fork-shaped.
  5. Device according to one of claims 1 to 4, comprising grippers (3) provided on the movable gripper part (10) on either side of the traction mechanism (5) with respective lever arms (13) each associated with an actuating member (11), characterised in that the actuating members (11) are secured to a shaft (16) mounted in a guide arrangement (4) guiding the traction mechanism (5) and extending transversely to the direction of the progressive motion of the grippers (3).
  6. Device according to one of claims 1 to 5, characterised in that the actuating member(s) (11) acting on the movable gripper parts (10) is/are designed at the end directed towards the lever arms (13) as a guide track (14) for an adjacent, offset guide rail (12) associated with the opened grippers (3).
  7. Device according to claim 6, characterised in that the guide rail (12) is designed to extend parallel to the traction mechanism (5).
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 EP0839746A1 (en) 1998-05-06
EP0839746B1 true 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

Family Cites Families (6)

* 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.
US5172802A (en) * 1991-09-17 1992-12-22 Am International Inc. Selective release assembly for gripper clamps
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
DE69303743T2 (en) * 1992-03-17 1996-12-12 Graphic Management Assoc Device with a conveyor and grippers

Also Published As

Publication number Publication date
JPH10175762A (en) 1998-06-30
US6039317A (en) 2000-03-21
DE59705999D1 (en) 2002-02-21
EP0839746A1 (en) 1998-05-06

Similar Documents

Publication Publication Date Title
EP0930248B1 (en) Device for sorting articles
EP2762427B1 (en) Device for turning an object
EP0633212B1 (en) Endless circulating transport device for unit load with individual transport elements
EP0341425A2 (en) Device for collecting folded printed sheets
DE102013101149A1 (en) Device for turning and transporting an object
EP2314528B1 (en) Chain conveyor with damping device
DE3910333C1 (en)
EP0839746B1 (en) Device for conveying sheets
DE2853053C2 (en)
DE9116357U1 (en) Controllable gripper unit for sheet delivery in printing machines
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
CH680278A5 (en)
DE69303439T2 (en) Device for stacking and aligning individually fed sheets
EP0771675A1 (en) Device for removing printed products from a saddle conveyor
DE10354673A1 (en) Sheet separator for use in rotary printers has gripper units with rollers at their upper ends which move over separate control cams
DE2362680A1 (en) SYSTEM FOR PROMOTING PRINTED PRODUCTS IN A SHED STORAGE
EP0232553A1 (en) Winding device for a continuously arriving imbricated batch of flexible flat products
DE3701767C2 (en)
EP1820660A2 (en) Book block transport system
DE1943778C3 (en) Conveyor device with which green tires arriving on a conveyor track to the gripper of an overhead conveyor of a spraying system or the like. be delivered
EP1717179B1 (en) Device for stablilizing printed products transported in a stream along a transport path, hanging in grippers of a transport device
EP2418164B1 (en) Method and device for gathering flat products with other flat products and device for conveying flat products, in particular printed products
EP3969257A1 (en) Shrinkage and chain tensioner of a film stretching system with longitudinal shrinkage

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