EP0683750B1 - Process and device for the correctly positioned transfer of folded signatures in folders - Google Patents

Process and device for the correctly positioned transfer of folded signatures in folders Download PDF

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Publication number
EP0683750B1
EP0683750B1 EP94913023A EP94913023A EP0683750B1 EP 0683750 B1 EP0683750 B1 EP 0683750B1 EP 94913023 A EP94913023 A EP 94913023A EP 94913023 A EP94913023 A EP 94913023A EP 0683750 B1 EP0683750 B1 EP 0683750B1
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EP
European Patent Office
Prior art keywords
gripper
cylinder
folded
gripper cylinder
signatures
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
EP94913023A
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German (de)
French (fr)
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EP0683750A1 (en
Inventor
Hans Günther MAYER
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.)
Koenig and Bauer AG
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Koenig and Bauer Albert AG
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Publication of EP0683750A1 publication Critical patent/EP0683750A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/06Delivering 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 rotating members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/20Belts
    • B65H2404/26Particular arrangement of belt, or belts
    • B65H2404/261Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00Sensing or detecting means
    • B65H2553/40Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41Photoelectric detectors

Definitions

  • the invention relates to a method and Device for the correct takeover of crossfolded signatures in folders for Rotary printing machines according to the preamble of Claim 1.
  • DE 30 49 595 A1 is a belt section for Transport and slow down folding products between two successive stations one Folders known from at least two successive, with graded against each other Speeds driven sections exist each with an upper and a lower set of ligaments each with several arranged parallel to each other Have bands.
  • Such a delay line can be between a jaw cylinder and a Gripper cylinder can be arranged.
  • DE-PS 12 30 811 is still one Device for preventing plugs in the folder from printing press, in which by Triggering an electrical contact in the case of Accumulation or lack of specimens a knife to Cut the running paper web and the Machine is stopped by the fact that between Jaw cylinder and paddle wheel a photo cell as well on the jaw cylinder depending on the Machine speed controlled pulse generator is provided, both with a comparison and Switching device are connected, which is the cutting of the Paper web and switching off the machine.
  • DE 35 34 157 A1 discloses a method for Correctly take over folded signatures from a folding jaw cylinder to a subsequent one Gripper cylinder, the folded signatures using a belt control system from the jaw cylinder to subsequent gripper cylinder transported and be taken over.
  • the invention has for its object a method and a device for the correct takeover of folded signatures that one Speed change between two successive stations of a folder subject to create regardless of one certain surface condition or one certain mass of the folded signatures.
  • the invention in particular the following Advantages achieved: the invention makes it possible become the location of the signatures after going through of belt guidance systems at the entry into the gripper systems of a gripper cylinder at the approaching ends Correcting inaccuracies immediately without a separation of the incoming paper web or a Machine stop would be required.
  • the folder shown in Fig. 1 has two in parallel mutually arranged side walls for receiving Cylinders, of which only one side wall is shown and designated 1.
  • a paper web strand 2 passes through a pair of draw rollers 3 and subsequently one from cross cutting cylinder 4 and cutting groove cylinder 6 existing cross cutting device.
  • the of the Cross cutting device 4, 6 cut, not Signatures shown are known between two Belt control systems 7, 8 accelerated, of which the second tape control system 8 to the periphery of a subsequent five-part collecting cylinder 9 reaches and the first tape control system 7 to the extent of Collection cylinder 9 creates and up to a five-part The jaw cylinder 11 reaches.
  • the collecting cylinder 9 points at its circumference five at a time Properly arranged, designated 12, per se known gripper systems and also five with 13 designated, known folding knife systems.
  • the circumference of the jaw cylinder 11 are in evenly spaced five known per se Folding jaw systems 14 arranged.
  • a folded signature 39 (Fig. 2.1)
  • the folded signature 39 (Fig. 2.1) one three-part, provided with three gripper systems 19
  • Gripper cylinder 21 passed, which the folded Signatures 39 between parallel to each other Belt guidance systems 17, 22 and 23, 24 a first Paddle wheel 27 with a first cross fold delivery 28 feeds.
  • the folded Signatures 39 alternatively via a deflection roller 32 advanced tape control system 16 with a parallel for this purpose, a tape guidance system 31 a second Paddle wheel 33 and a second cross fold delivery 34 be fed.
  • 2.1 shows the detail X according to FIG. 1 with a side view of the gripper cylinder 21 and without Belt guidance systems.
  • a transmitter 36 and a receiver 37 existing first fixed position determination device or light barrier 38 arranged, the time the arrival of a transverse fold edge 62 one in Production direction H moving, folded signature 39 detected.
  • the light barrier 38 is at a distance d to the periphery of the gripper cylinder 21 fixed to the side frame arranged so that the signatures 39 according to their running horizontally between the belt guidance systems Transport the gripper systems 19 are handed over.
  • the distance d corresponds to approximately half a length a signature 39 (Fig. 2.1).
  • the flag 49 interrupts this circular movement a light beam 51 emitted by a transmitter 52 Photoelectric sensor 53 meets a receiver 54.
  • the transmitter 52 and the receiver 54 are on the side of the side frame 1 remote from the cylinder held by a bracket 56 so that the Light beam 51 runs parallel to the side frame 1.
  • the flag 49 and light barrier 53 Device is used as a second position detection device designated.
  • the position of the gripper cylinder 21 is queried via this flag 49.
  • This flag 49 moves on the said circular path with the same diameter as the gripper cylinder 21.
  • the flag 49 is interrogated with the aid of the light barrier 53.
  • the position of the transverse fold edge 62 of the sheet 39 is also with the aforementioned light barrier 38 of the same type as in the case of Flag recognition queried.
  • the controller now has two signals available, a flag signal U F and a bow signal U B (FIGS. 7, 8).
  • a release of the device is given by means of a keyboard or input 71 in the presence of a corresponding level of the speed of the machine.
  • a signal U S is generated at a time t S 67, 68 or 69 (FIG. 8) and transmitted to an evaluation unit 43 with memory, depending on when the transverse fold edge 62 of the folded signature 39 passes the light barrier 38 .
  • the device behaves analogously if there is a sheet signal 69, "folded signature too late” in area C (shown in full lines in FIG. 8).
  • the voltage signals U B and U F of the times t S are in the evaluation unit 43 and t F compared with each other.
  • U B represents the setpoint and U F the actual value.
  • a corresponding signal is triggered via a Schmitt trigger 72 and a power amplifier 64, which activates a motor of a motor gear unit 63.
  • This motor superimposes its differential speed on the main motor of the gripper cylinder 21 via its gear unit, so as to bring the time difference t S minus t F to zero, ie the grippers 19 then capture the folded signatures 39 in their correct position.
  • the gear of the motor gear unit 63 can be off a harmonic drive gearbox or consist of one in the axial direction by means of a threaded spindle and an adjustable helical gear motor Drive gear, which is non-positive and positive is connected to a gear that with a Drive gear of the gripper cylinder 21 meshes.
  • a Potentiometer 66 reports the respective position of the Gripper cylinder 21. All elements shown in Fig. 5 37, 42, 43; 54, 57, 43; 72, 64, 63, 66, 43, 71 by unspecified electrical cables connected.
  • FIG. 6 a detail Y shown in FIG. 1 with the arrangement the device in the entry of the signatures 39, between the conveyor systems leading to the collecting cylinder 9 7, 8.
  • the ones used Provide elements with the same part numbers as those Elements used in the first embodiment or parts.
  • FIG. 2.1 a frame-fixed, consisting of transmitter 36 and receiver 37 existing light barrier 38 shortly before entering arranged the collecting cylinder 9, which with their Light beam 41 of the evaluation unit 43 the arrival a transverse fold edge 62 signals a signature 39 and stored in the memory of the evaluation unit 64.
  • an in axially pointing fork-shaped flag 49 with arranged parallel to each other, in the axial direction extending legs 58, 59 with one in between arranged slot 61 attached to the cylinder.
  • This cylinder-fixed flag 49 breaks through each Rotation of the collecting cylinder 9 a light beam 51, which is fixed to a frame by a transmitter 52 Photoelectric sensor 53 meets a receiver 54.
  • the Signals of both light barriers 38, 53 are in one Evaluation unit 43 with regard to its time difference compared (Fig. 5), as in the first embodiment already shown. Should there be any time deviations result when entering the gripper system 12 of the Collection cylinder 9, so is, via the evaluation unit 43, as shown in Fig. 5, a motor-gear unit 63 with the drive of the cross cutting device 4, 6 in Connected to synchronization between Gripper system 12 of the collecting cylinder 9 and in the Light barrier 38 incoming signature 39 by twisting of the cross cutting cylinder 4 and the cutting groove cylinder 6 manufacture.
  • a second frame-mounted light barrier 53 for determining the The position of the blades could be determined by means of a Shaft of the paddle wheel 27, 33 attached lever 46 with flag 49 with each paddle wheel revolution to be interrupted.
  • the evaluation is done as before described above, via an evaluation unit 43, which with a motor gear unit 63 is connected, which again the drive of the paddle wheel 27, 33 by one Angle of rotation Alpha rotates if there is a difference between the actual position and the target position of the folded Signature 39 exists.
  • FIG. 9 a Possibility to regulate a correct handover of folded signatures on a gripper cylinder shown.
  • Light barrier 53 a preset value (setpoint) for the length of the path the transverse fold edge 62 one Signature 39 from the measurement reference line of the light barrier 53 up to the desired position of the transverse fold edge 62 in the gripper systems 19 must travel.
  • This path is in angular degrees (or pulses) of the circumferential angle of the gripper cylinder 21 measured via the angle encoder 73, 74.
  • the signature 39 may be the leading one Cross fold edge 62 correct, sooner or later (in Degrees of angle of the gripper cylinder 21 measured) to the triggering measuring line of light barrier 53, which triggers a switching pulse in any case.
  • This Switching pulse is a trigger in the embodiment 83 fed, the one constantly counting, at each new rotation of the encoder 73, 74 on Counter reading zero-switching counter 84 switches.
  • the Counter 84 receives counter pulses from the angle encoder 73, 74.
  • the counter 84 gives its counter reading Time of switching through the light barrier 52, 54 - in the form of pulses - to an impulse difference generator 76 (difference counter).
  • the location of the gripper system (s) 19, d. H. e.g. B. an imaginary target position of the transverse fold edge 62 in Gripper system, is several or a specific one Angle (s) z. B. 0.0000 °; 0.0000 °, 120.0000 °, 240.0000 ° the code disk 73 assigned exactly. This can at the time of the switching impulse given Light barrier 53 the exact angular position of any desired Gripper system 19 and thus the "current" distance in angular degrees - or a corresponding one Number of pulses - the gripper cylinder 21 of Target position of the gripper system 19 from the measuring line the light barrier 53, can be determined, that is a current "actual distance".
  • This "actual distance” is compared with a specified - e.g. B. about the digital decade potentiometer 87 preset “Target distance” at the time of going through the leading transverse fold edge 62 of this signature 39 through the light barrier 38 (36, 37) through this one Switching pulse generated.
  • the setpoint is compared with the actual value and a
  • the manipulated variable is formed by the difference former 76 Storage unit 77 for the purpose of correcting the angular position of the Gripper cylinder 21 passes (the phase position a folded signature 39 of the location or distance d - Fig.
  • the difference images 76 receives its setpoint input via a digital decade potentiometer 87.
  • the pulse counter 84 which can be set to zero, gives Time of a switching pulse of the trigger 83 its Value at the time the transverse fold edge 62 was run through to the difference former 76, but only if the machine is in the "pressure on" position, d.
  • the counter 84 can be triggered in such a way that it is the 73 determined actual values for the position of the angle of rotation the gripper cylinder 21 only for selected revolutions, e.g. B. every second revolution of the gripper cylinder 21 the difference former 76 further in Art.
  • the Difference images 76 a possible pulse difference of Number of setpoint and actual value pulses and conducts them to the storage unit 77.
  • the storage unit 77 gives the upcoming positive or negative Differential impulses for a single application of the Gripper cylinder 21 with a positive or negative Speed for a single gripper cylinder revolution to a frequency converter 81, the one Three-phase motor 82 drives accordingly.
  • Both the Three-phase motor 82 and a remote control 89 controllable main motor 79 work together a differential gear 78 on the axle 44 of the Gripper cylinder, which then briefly revs receives that higher or lower than the original Speed of the gripper cylinder 21 and after positive or negative speed input with original speed continues.
  • the light barrier 53 is on or near the Conveyor control system 16; 17 arranged.
  • the switching pulse generated by the light barrier 53 serves to measure the actual angular position 91 at the moment of the person (s) to accept the selected signature (s) Trigger gripper systems 19.
  • the difference value signal follows in an electronic control unit in a positive or negative control value for a circumferential rotation of the gripper cylinder 21 in relation to the measurement technology detected position of the folded edge 62 of the predetermined folded signature 39 converted.
  • the Gripper cylinder 21 by means of drive means, for. B. one Motor gear unit 63 or a frequency controlled Three-phase motor 82 with differential gear 73, in the corresponding calculated target angular position 92 brought so that a correct takeover of the folded signatures 39 by the gripper systems 19 of the gripper cylinder 21 is guaranteed.
  • phase position between the drive shaft 44 and the Cylinder body of the gripper cylinder 21 can also the phase position between the drive shaft 44 and the Cylinder body of the gripper cylinder 21 accordingly to be changed.
  • This can be done in that between the axis 44 of the gripper cylinder 21 and the Gripper cylinder body acts a clutch, which for Purpose of rotating the gripper cylinder 21 in relation on the axis 44 of the gripper cylinder 21 briefly for the purpose of an electromotive actuator is released and the gripper cylinder body on the shaft 44 via an electronic gear transmission accordingly is twisted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

In a process for the correctly positioned transfer of folded signatures from a belt conveyor system to a gripper cylinder, the position of a predetermined signature leaving the belt conveyor system is to be continuously determined and recorded regardless of the surface quality of the signatures. At the same time, the momentary actual angular position of a gripper system to which the signature is to be transferred is determined and recorded. In the event of a difference from a reference angular position, an electric difference signal is formed and the gripper cylinder is then taken to a reference angular position by drive means. A device for implementing the process is also proposed.

Description

Die Erfindung betrifft ein verfahren und eine Vorrichtung zum lagerichtigen Übernehmen von quergefalzten Signaturen in Falzapparaten für Rotationsdruckmaschinen entsprechend dem Oberbegriff des Anspruches 1.The invention relates to a method and Device for the correct takeover of crossfolded signatures in folders for Rotary printing machines according to the preamble of Claim 1.

Durch die DE 30 49 595 A1 ist eine Bänderstrecke zum Transport und zur Verlangsamung von Falzprodukten zwischen zwei aufeinanderfolgenden Stationen eines Falzapparates bekannt, die aus zumindest Zwei aufeinanderfolgenden, mit gegeneinander abgestuften Geschwindigkeiten angetriebenen Abschnitten bestehen, die jeweils einen oberen und einen unteren Bändersatz mit jeweils mehreren parallel zueinander angeordneten Bändern aufweisen. Eine derartige Verzögerungsstrecke kann zwischen einem Falzklappenzylinder und einem Greiferzylinder angeordnet sein.DE 30 49 595 A1 is a belt section for Transport and slow down folding products between two successive stations one Folders known from at least two successive, with graded against each other Speeds driven sections exist each with an upper and a lower set of ligaments each with several arranged parallel to each other Have bands. Such a delay line can be between a jaw cylinder and a Gripper cylinder can be arranged.

Weiterhin ist es allgemein bekannt, nach dem erfolgten Querschneiden eines Papierbahnstranges in einzelne Signaturen, die Signaturen mittels eines Bandleitsystems so zu beschleunigen, daß diese z. B. von den Greifersystemen eines z. B. formateinstellbaren Sammelzylinders erfaßt werden können. Dies trifft insbesondere bei formateinstellbaren Sammelzylindern mit Signaturen minimaler Formatlänge zu.Furthermore, it is generally known that cross sections of a paper web strand in individual signatures, the signatures by means of a Speed control system so that this z. B. from the gripper systems of e.g. B. format adjustable Collection cylinders can be detected. This is true especially with format adjustable collecting cylinders with Signatures of minimal format length too.

Sowohl beim Beschleunigen von gefalzten oder von ungefalzten Signaturen, nachfolgend immer als Signaturen bezeichnet, als auch beim Verzögern von Signaturen, kann ein hoher Silikonanteil auf der Oberfläche und somit eine glatte Oberfläche des Falzproduktes zu mangelhaften Beschleunigungen oder Verzögerungen der Falzprodukte führen. Bei einer mangelhaften Beschleunigung der Signatur wird diese vom Greifersystem ungenügend erfaßt, so daß die Signatur verlorengehen kann. Bei einer mangelhaften Verzögerung der Signatur dringt diese infolge ihrer Massenkräfte so tief in das Greifersystem ein, daß keine Abgabe aus dem Greifersystem erfolgt. Die beiden genannten Mängel führen jeweils zu unerwünschten Stopfern im Falzapparat. Es kann auch umgekehrt der Fall auftreten, daß infolge eines hohen Farbanteils auf den Signaturen und somit einer rauhen Oberfläche derselben entweder eine zu große Beschleunigung oder eine zu große Verzögerung eintritt, wobei diese Wirkungen ebenso nachteilig sind und zu Stopfern führen. Die genannten Wirkungen werden umsomehr verstärkt, desto umfangreicher die Signatur ist, z. B. bei einer Verzögerung einer Signatur aus mehrfach gesammelter Produktion.Both when accelerating folded or from unfolded signatures, hereinafter always as signatures referred to, as well as when delaying signatures a high proportion of silicone on the surface and thus too smooth a surface of the folded product Accelerations or decelerations of the folded products to lead. If the acceleration is insufficient Signature is insufficiently captured by the gripper system, so that the signature can be lost. At a insufficient signature delay penetrates this due to their mass forces so deep in the gripper system a that there is no delivery from the gripper system. The both of these deficiencies lead to undesirable Stuffers in the folder. The reverse can also be the case occur that due to a high proportion of color on the Signatures and thus a rough surface of the same either too much acceleration or too great delay occurs, these effects as well are disadvantageous and lead to blockages. The above Effects are amplified the more extensive the signature is, e.g. B. with a delay Signature from multiple collected production.

Durch die DE-PS 12 30 811 ist weiterhin eine Vorrichtung zum Verhüten von Stopfen im Falzapparat von Druckmaschine bekanntgeworden, bei welcher durch Auslösen eines elektrischen Kontakts im Fall der Anhäufung oder des Fehlens von Exemplaren ein Messer zum Abschneiden der laufenden Papierbahn betätigt und die Maschine dadurch stillgesetzt wird, daß zwischen Falzklappenzylinder und Schaufelrad eine Fotozelle sowie am Falzklappenzylinder ein in Abhängigkeit von der Maschinengeschwindigkeit gesteuerter Impulsgeber vorgesehen ist, wobei beide mit einem Vergleich- und Schaltgerät verbunden sind, welches das Abschneiden der Papierbahn und das Abschalten der Maschine auslöst.DE-PS 12 30 811 is still one Device for preventing plugs in the folder from printing press, in which by Triggering an electrical contact in the case of Accumulation or lack of specimens a knife to Cut the running paper web and the Machine is stopped by the fact that between Jaw cylinder and paddle wheel a photo cell as well on the jaw cylinder depending on the Machine speed controlled pulse generator is provided, both with a comparison and Switching device are connected, which is the cutting of the Paper web and switching off the machine.

Nachteilig an dieser Vorrichtung ist, daß im Falle von Lageungenauigkeiten von gefalzten Signaturen ein Abschalten der Maschine erfolgt.The disadvantage of this device is that in the case of Positional inaccuracies of folded signatures The machine is switched off.

Die DE 35 34 157 A1 offenbart ein Verfahren zum lagerichtigen übernehmen von quergefalzten Signaturen von einem Falzklappezylinder zu einem nachfolgenden Greiferzylinder, wobei die gefalzten Signaturen mittels eines Bandleitsystems vom Falzklappenzylinder zum nachfolgenden Greiferzylinder transportiert und übernommen werden.DE 35 34 157 A1 discloses a method for Correctly take over folded signatures from a folding jaw cylinder to a subsequent one Gripper cylinder, the folded signatures using a belt control system from the jaw cylinder to subsequent gripper cylinder transported and be taken over.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zum lagerichtigen übernehmen von gefalzten Signaturen, die einer Geschwindigkeitsveränderung zwischen zwei aufeinanderfolgenden Stationen eines Falzapparates unterliegen, zu schaffen, unabhängig von einer bestimmten Oberflächenbeschaffenheit oder einer bestimmten Masse der gefalzten Signaturen.The invention has for its object a method and a device for the correct takeover of folded signatures that one Speed change between two successive stations of a folder subject to create regardless of one certain surface condition or one certain mass of the folded signatures.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des kennzeichnenden Teils des Anspruches 1 gelöst.According to the invention, this object is achieved by the features of the characterizing part of claim 1 solved.

Durch die Erfindung werden insbesondere folgende Vorteile erzielt: durch die Erfindung ist es möglich geworden, die Lage der Signaturen nach dem Durchlaufen von Bandleitsystemen am Einlauf in die Greifersysteme eines Greiferzylinders bei sich anbahnenden Lageungenauigkeiten sofort zu korrigieren, ohne daß ein Trennen der einlaufenden Papierbahn oder ein Maschinenhalt erforderlich wäre.The invention in particular the following Advantages achieved: the invention makes it possible become the location of the signatures after going through of belt guidance systems at the entry into the gripper systems of a gripper cylinder at the approaching ends Correcting inaccuracies immediately without a separation of the incoming paper web or a Machine stop would be required.

Die Erfindung wird nachfolgend an mehreren Ausführungsbeispielen näher erläutert. Die zugehörigen Zeichnungen zeigen in

Fig. 1
eine schematische Seitenansicht eines Falzapparates mit einer Vorrichtung zum lagerichtigen Übergeben von Signaturen,
Fig. 2.1
eine Einzelheit X nach Fig. 1,
Fig. 2.2
eine vergrößerte Darstellung eines Greifers eines Greifersystems nach Fig. 2.1,
Fig. 3
eine Ansicht A nach Fig. 2.1,
Fig. 4
einen Schnitt IV - IV nach Fig. 3, in vergrößerter Darstellung,
Fig. 5
ein Blockschaltbild einer Vorrichtung zum Positionieren,
Fig. 6
eine Einzelheit Y nach Fig. 1,
Fig. 7
ein Diagramm mit der Darstellung von Signalen aus einer zweiten Auswerteeinheit,
Fig. 8
ein Diagramm mit Darstellung von Signalen aus einer ersten Auswerteeinheit,
Fig. 9
eine schematische Darstellung einer Regelung einer erfindungsgemäßen Vorrichtung in einem weiteren Ausführungsbeispiel.
The invention is explained in more detail below using several exemplary embodiments. The associated drawings show in
Fig. 1
2 shows a schematic side view of a folder with a device for the correct transfer of signatures,
Fig. 2.1
a detail X of FIG. 1,
Fig. 2.2
2 shows an enlarged illustration of a gripper of a gripper system according to FIG. 2.1,
Fig. 3
2.1 a view A according to FIG. 2.1,
Fig. 4
4 shows a section IV-IV according to FIG. 3, on an enlarged scale,
Fig. 5
1 shows a block diagram of a device for positioning,
Fig. 6
a detail Y according to Fig. 1,
Fig. 7
1 shows a diagram with the representation of signals from a second evaluation unit,
Fig. 8
1 shows a diagram showing signals from a first evaluation unit,
Fig. 9
a schematic representation of a control of a device according to the invention in a further embodiment.

Der in Fig. 1 gezeigte Falzapparat weist zwei parallel zueinander angeordnete Seitenwände zur Aufnahme von Zylindern auf, von denen nur eine Seitenwand dargestellt und mit 1 bezeichnet ist. Ein Papierbahnstrang 2 durchläuft ein Zugwalzenpaar 3 und nachfolgend eine aus Querschneidzylinder 4 und Schneidnutenzylinder 6 bestehende Querschneideeinrichtung. Die von der Querschneideeinrichtung 4, 6 geschnittenen, nicht dargestellten Signaturen werden zwischen zwei bekannten Bandleitsystemen 7, 8 beschleunigt, von denen das zweite Bandleitsystem 8 bis an die Peripherie eines nachfolgenden fünfteiligen Sammelzylinders 9 heranreicht und das erste Bandleitsystem 7 sich an den Umfang des Sammelzylinders 9 anlegt und bis an einen fünfteiligen Falzklappenzylinder 11 heranreicht. Der Sammelzylinder 9 weist an seinem Umfang jeweils fünf in gleichmäßigem Anstand angeordnete, mit 12 bezeichnete, an sich bekannte Greifersysteme und ebenfalls fünf mit 13 bezeichnete, an sich bekannte Falzmessersysteme auf.The folder shown in Fig. 1 has two in parallel mutually arranged side walls for receiving Cylinders, of which only one side wall is shown and designated 1. A paper web strand 2 passes through a pair of draw rollers 3 and subsequently one from cross cutting cylinder 4 and cutting groove cylinder 6 existing cross cutting device. The of the Cross cutting device 4, 6 cut, not Signatures shown are known between two Belt control systems 7, 8 accelerated, of which the second tape control system 8 to the periphery of a subsequent five-part collecting cylinder 9 reaches and the first tape control system 7 to the extent of Collection cylinder 9 creates and up to a five-part The jaw cylinder 11 reaches. The collecting cylinder 9 points at its circumference five at a time Properly arranged, designated 12, per se known gripper systems and also five with 13 designated, known folding knife systems.

Am Umfang des Falzklappenzylinders 11 sind in gleichmäßigen Abständen verteilt fünf an sich bekannte Falzklappensysteme 14 angeordnet. Nach dem Ausbilden des ersten Querfalzes entsteht durch Einwirken der Falzmessersysteme 13 des Sammelzylinders 9 in die Falzklappensysteme 14 des Falzklappenzylinders 11 eine gefalzte Signatur 39 (Fig. 2.1), welche sowohl am Umfang bzw. der Mantelfläche des Falzklappenzylinders 11 als auch an einem Bandleitsystem 16 anliegt. Mittels des Bandleitsystems 16 und einem weiteren Bandleitsystem 17, wird die gefalzte Signatur 39 (Fig. 2.1) einem dreiteiligen, mit drei Greifersystemen 19 versehenen Greiferzylinder 21 übergeben, welcher die gefalzten Signaturen 39 zwischen parallel zueinander verlaufenden Bandleitsystemen 17, 22 und 23, 24 einem ersten Schaufelrad 27 mit einer ersten Querfalzauslage 28 zuführt. Mittels einer Weiche 29 können die gefalzten Signaturen 39 alternativ über das über eine Umlenkwalze 32 weiterführende Bandleitsystem 16 mit einem parallel dazu verlaufenden Bandleitsystem 31 einem zweiten Schaufelrad 33 sowie einer zweiten Querfalzauslage 34 zugeführt werden.The circumference of the jaw cylinder 11 are in evenly spaced five known per se Folding jaw systems 14 arranged. After training of the first cross fold is created by the action of Folding knife systems 13 of the collecting cylinder 9 in the Jaw systems 14 of the jaw cylinder 11 a folded signature 39 (Fig. 2.1), both on the circumference or the outer surface of the jaw cylinder 11 as also rests on a belt control system 16. By means of the Belt control system 16 and another belt control system 17, the folded signature 39 (Fig. 2.1) one three-part, provided with three gripper systems 19 Gripper cylinder 21 passed, which the folded Signatures 39 between parallel to each other Belt guidance systems 17, 22 and 23, 24 a first Paddle wheel 27 with a first cross fold delivery 28 feeds. Using a switch 29, the folded Signatures 39 alternatively via a deflection roller 32 advanced tape control system 16 with a parallel for this purpose, a tape guidance system 31 a second Paddle wheel 33 and a second cross fold delivery 34 be fed.

Fig. 2.1 zeigt die Einzelheit X nach Fig. 1 mit einer Seitenansicht des Greiferzylinders 21 und ohne Bandleitsysteme. Vor dem Einlauf des im Uhrzeigersinn in Produktionsrichtung H laufenden Greiferzylinders 21 ist eine aus einem Sender 36 und einem Empfänger 37 bestehende gestellfeste erste Lageermittlungseinrichtung oder Lichtschranke 38 angeordnet, welche den Zeitpunkt des Eintreffens einer Querfalzkante 62 einer in Produktionsrichtung H bewegten, gefalzten Signatur 39 erfaßt. Die Lichtschranke 38 ist in einem Abstand d zur Peripherie des Greiferzylinders 21 seitengestellfest angeordnet, so daß die Signaturen 39 nach ihrem etwa waagerecht zwischen den Bandleitsystemen verlaufenden Transport den Greifersystemen 19 übergeben werden. Der Abstand d entspricht etwa einer halben Länge einer Signatur 39 (Fig. 2.1). Weiterhin ist an einem Achszapfen 44 des Greiferzylinders 21 kraft- und formschlüssig ein parallel zum Seitengestell 1 verlaufender einarmiger Hebel 46 mit seinem ersten Ende 47 befestigt, welcher gleichermaßen mit dem Achszapfen 44 umläuft. Der Hebel 46 weist an seinem zweiten Ende 48 eine rechtwinklig abgebogene, in eine gestell- und zylinderferne Richtung weisende gabelförmige Fahne 49 auf, welche sich auf einer Kreisbahn bewegt, die den gleichen oder annähernd den gleichen Durchmesser besitzt wie der Greiferzylinder 21.2.1 shows the detail X according to FIG. 1 with a side view of the gripper cylinder 21 and without Belt guidance systems. Before entering the clockwise Gripper cylinder 21 running in production direction H. is one of a transmitter 36 and a receiver 37 existing first fixed position determination device or light barrier 38 arranged, the time the arrival of a transverse fold edge 62 one in Production direction H moving, folded signature 39 detected. The light barrier 38 is at a distance d to the periphery of the gripper cylinder 21 fixed to the side frame arranged so that the signatures 39 according to their running horizontally between the belt guidance systems Transport the gripper systems 19 are handed over. The distance d corresponds to approximately half a length a signature 39 (Fig. 2.1). Furthermore is on an axle 44 of the gripper cylinder 21 force and form-fitting a parallel to the side frame 1 extending one-armed lever 46 with its first end 47 attached, which is equally with the journal 44 revolves. The lever 46 has at its second end 48 a right-angled, in a rack and Fork-shaped flag 49 pointing away from the cylinder on which moves on a circular path that the has the same or approximately the same diameter like the gripper cylinder 21.

Bei dieser Kreisbewegung unterbricht die Fahne 49 einen Lichtstrahl 51, der von einem Sender 52 einer Lichtschranke 53 auf einen Empfänger 54 trifft. Der Sender 52 und der Empfänger 54 sind auf der zylinderfernen Seite des Seitengestells 1 gestellfest mittels eines Lagerbockes 56 gehalten, so daß der Lichtstrahl 51 parallel zum Seitengestell 1 verläuft. Die aus Fahne 49 und Lichtschranke 53 bestehende Einrichtung wird als zweite Lageermittlungseinrichtung bezeichnet.The flag 49 interrupts this circular movement a light beam 51 emitted by a transmitter 52 Photoelectric sensor 53 meets a receiver 54. The transmitter 52 and the receiver 54 are on the side of the side frame 1 remote from the cylinder held by a bracket 56 so that the Light beam 51 runs parallel to the side frame 1. The flag 49 and light barrier 53 Device is used as a second position detection device designated.

Über diese Fahne 49 wird die Position des Greiferzylinders 21 abgefragt. Diese Fahne 49 bewegt sich auf der genannten Kreisbahn mit demselben Durchmesser wie der Greiferzylinder 21. Das Abfragen der Fahne 49 geschieht mit Hilfe der Lichtschranke 53. Die Position der Querfalzkante 62 des Bogens 39 wird ebenfalls mit der genannten Lichtschranke 38 gleicher Bauart wie im Fall der Fahnenerkennung abgefragt. Der Steuerung stehen nun zwei Signale zur Verfügung, eine Fahnensignal UF und ein Bogensignal UB (Fig. 7, 8).The position of the gripper cylinder 21 is queried via this flag 49. This flag 49 moves on the said circular path with the same diameter as the gripper cylinder 21. The flag 49 is interrogated with the aid of the light barrier 53. The position of the transverse fold edge 62 of the sheet 39 is also with the aforementioned light barrier 38 of the same type as in the case of Flag recognition queried. The controller now has two signals available, a flag signal U F and a bow signal U B (FIGS. 7, 8).

Mittels einer Tastatur oder Eingabe 71 wird bei Vorhandensein einer entsprechenden Höhe der Drehzahl der Maschine eine Freigabe der Vorrichtung gegeben. Mittels der ersten Lageermittlungseinrichtung 38 wird ein Signal US zu einem Zeitpunkt tS 67, 68 oder 69 erzeugt (Fig. 8), und einer Auswerteeinheit 43 mit Speicher übermittelt, je nachdem, wann die Querfalzkante 62 der gefalzten Signatur 39 die Lichtschranke 38 passiert. Ebenfalls wird mittels der zweiten Lageermittlungseinrichtung 49; 53 ein Signal UF in einem Bereich A (erzeugt vom Schenkel 59 der Fahne 49), in einem Bereich B (erzeugt vom Schlitz 61 der Fahne 49) oder im Bereich C (erzeugt vom Schenkel 58 der Fahne 49) erzeugt, so daß ein zeitmäßiger Vergleich beider Signale UB, UF in der Auswerteeinheit 43 darüber Aufschluß gibt, ob die Querfalzkante 62 der gefalzten Signatur 39 zu früh (Bereich A), zu spät (Bereich C) oder lagerichtig ist (Bereich B, Fig. 7). Befinden sich jedoch die Bogensignale 67 bis 69 außerhalb der Bereiche A bis C (kann durch Ziehen einer Senkrechten zwischen den beiden Diagrammen in Fig. 7 und 8 festgestellt werden), so findet keine Regelung statt. Befindet sich das Bogensignal 67, "gefalzte Signatur zu früh" (gestrichelt in Fig. 8 dargestellt) im Bereich A, so steht pro Durchlauf der Fahne 49 ein High-Signal von 1 Sekunde Dauer an. Analog verhält sich die Vorrichtung, wenn sich ein Bogensignal 69, "gefalzte Signatur zu spät" im Bereich C befindet (voll ausgezogen in Fig. 8 dargestellt). Je nachdem, ob die Signatur 39 zu früh ist (Signal 67, Bereich A) oder zu spät (Signal 69, Bereich C, Fig. 7 und 8), werden in der Auswerteeinheit 43 die Spannungssignale UB und UF der Zeitpunkte tS und tF miteinander verglichen. Dabei stellt UB den Sollwert und UF den Istwert war. Je nachdem, ob die Zeitdifferenz tS minus tF positiv oder negativ ist, wird über einen Schmitt-Trigger 72 und einen Leistungsverstärker 64 ein entsprechendes Signal ausgelöst, welches einen Motor einer Motor-Getriebeeinheit 63 aktiviert. Dieser Motor überlagert über seine Getriebeeinheit dem Hauptmotor des Greiferzylinders 21 seine Differenzdrehzahl, um somit die Zeitdifferenz tS minus tF auf Null zu bringen, d. h. die Greifer 19 erfassen dann die gefalzten Signaturen 39 in deren lagerichtigen Moment.A release of the device is given by means of a keyboard or input 71 in the presence of a corresponding level of the speed of the machine. Using the first position determination device 38, a signal U S is generated at a time t S 67, 68 or 69 (FIG. 8) and transmitted to an evaluation unit 43 with memory, depending on when the transverse fold edge 62 of the folded signature 39 passes the light barrier 38 . Likewise, by means of the second position determination device 49; 53 generates a signal U F in an area A (generated by leg 59 of flag 49), in an area B (generated by slot 61 of flag 49) or in area C (generated by leg 58 of flag 49), so that a Timely comparison of the two signals U B , U F in the evaluation unit 43 provides information as to whether the transverse fold edge 62 of the folded signature 39 is too early (area A), too late (area C) or in the correct position (area B, FIG. 7). However, if the arc signals 67 to 69 are outside the areas A to C (can be determined by drawing a vertical line between the two diagrams in FIGS. 7 and 8), no regulation takes place. If the sheet signal 67, "folded signature too early" (shown in dashed lines in FIG. 8) is in the area A, a high signal of 1 second duration is present per pass of the flag 49. The device behaves analogously if there is a sheet signal 69, "folded signature too late" in area C (shown in full lines in FIG. 8). Depending on whether the signature 39 is too early (signal 67, area A) or too late (signal 69, area C, FIGS. 7 and 8), the voltage signals U B and U F of the times t S are in the evaluation unit 43 and t F compared with each other. U B represents the setpoint and U F the actual value. Depending on whether the time difference t S minus t F is positive or negative, a corresponding signal is triggered via a Schmitt trigger 72 and a power amplifier 64, which activates a motor of a motor gear unit 63. This motor superimposes its differential speed on the main motor of the gripper cylinder 21 via its gear unit, so as to bring the time difference t S minus t F to zero, ie the grippers 19 then capture the folded signatures 39 in their correct position.

Das Getriebe der Motor-Getriebeeinheit 63 kann aus einem Harmonic-Drive-Getriebe bestehen oder auch aus einem in axialer Richtung mittels einer Gewindespindel und einem Stellmotor verstellbaren schrägverzahnten Antriebszahnrad, welches kraft- und formschlüssig mit einem Zahnrad verbunden ist, das mit einem Antriebszahnrad des Greiferzylinders 21 kämmt. Ein Potentiometer 66 meldet die jeweilige Stellung des Greiferzylinders 21. Alle in Fig. 5 gezeigten Elemente 37, 42, 43; 54, 57, 43; 72, 64, 63, 66, 43, 71 sind durch nicht näher bezeichnete elektrische Leitungen verbunden.The gear of the motor gear unit 63 can be off a harmonic drive gearbox or consist of one in the axial direction by means of a threaded spindle and an adjustable helical gear motor Drive gear, which is non-positive and positive is connected to a gear that with a Drive gear of the gripper cylinder 21 meshes. A Potentiometer 66 reports the respective position of the Gripper cylinder 21. All elements shown in Fig. 5 37, 42, 43; 54, 57, 43; 72, 64, 63, 66, 43, 71 by unspecified electrical cables connected.

Pro Umdrehung des Greiferzylinders 21 werden einmal Signale der Ermittlungseinheiten 38; 49, 53 ausgewertet und ggf. Drehzahlveränderungen vorgenommen. Es empfiehlt sich, die vorgenannte Lageregelung für die Signaturen erst bei einer bestimmten Maschinendrehzahl einzuschalten, um Falschmeldungen, etwa beim Anlaufen der Maschine, zu vermeiden.Once per rotation of the gripper cylinder 21 Signals from the determination units 38; 49, 53 evaluated and speed changes if necessary. It recommends the above-mentioned position control for the Signatures only at a certain machine speed to switch on to false messages, such as when starting to avoid the machine.

Im Falle einer fortschreitenden Verschmutzung der Sender 36, 52 und Empfänger 37, 54 der Lichtschranken 38, 53 werden die an den Empfängern 37, 54 zur Verfügung stehenden Signale kleiner. Ab einem bestimmten Verschmutzungsgrad wird der Auswerteeinheit 43 ein gesondertes Signal zugeleitet, um eine diesbezüglich in Aussicht stehende Störung zu vermeiden. So können z. B. in der Nähe der Sender 36, 52 und Empfänger 37, 54 Blasluftdüsen angeordnet sein, und eingeschaltet werden, um die Verschmutzung zu beseitigen.In the event of progressive contamination of the transmitters 36, 52 and receivers 37, 54 of the light barriers 38, 53 are available at the receivers 37, 54 standing signals smaller. From a certain The degree of contamination is the evaluation unit 43 separate signal supplied to a related in Avoid prospective disruption. So z. B. near transmitters 36, 52 and receivers 37, 54 Blowing air nozzles are arranged and switched on, to remove the pollution.

In einem zweiten Ausführungsbeispiel nach Fig. 6 wird eine Einzelheit Y nach Fig. 1 gezeigt mit der Anordnung der Vorrichtung im Einlauf der Signaturen 39, zwischen den zum Sammelzylinder 9 führenden Bandleitsystemen 7, 8. Der Einfachheit halber wurden die verwendeten Elemente mit gleichen Teilenummern versehen wie die im ersten Ausführungsbeispiel verwendeten Elemente oder Teile. Analog der Darstellung nach Fig. 2.1 ist eine gestellfeste, aus Sender 36 und Empfänger 37 bestehende Lichtschranke 38 kurz vor dem Einlauf in den Sammelzylinder 9 angeordnet, welche mit ihrem Lichtstrahl 41 der Auswerteeinheit 43 das Eintreffen einer Querfalzkante 62 einer Signatur 39 signalisiert und im Speicher der Auswerteeinheit 64 abgespeichert. An der Stirnseite des Sammelzylinders 9 und in unmittelbarer Nähe dessen Peripherie ist eine in axialer Richtung weisende gabelförmige Fahne 49 mit parallel zueinander angeordneten, in axialer Richtung verlaufenden Schenkeln 58, 59 mit einem dazwischen angeordnetem Schlitz 61 zylinderfest angebracht.In a second embodiment according to FIG. 6 a detail Y shown in FIG. 1 with the arrangement the device in the entry of the signatures 39, between the conveyor systems leading to the collecting cylinder 9 7, 8. For the sake of simplicity, the ones used Provide elements with the same part numbers as those Elements used in the first embodiment or parts. It is analogous to the representation according to FIG. 2.1 a frame-fixed, consisting of transmitter 36 and receiver 37 existing light barrier 38 shortly before entering arranged the collecting cylinder 9, which with their Light beam 41 of the evaluation unit 43 the arrival a transverse fold edge 62 signals a signature 39 and stored in the memory of the evaluation unit 64. At the front of the collecting cylinder 9 and in the immediate vicinity of its periphery is an in axially pointing fork-shaped flag 49 with arranged parallel to each other, in the axial direction extending legs 58, 59 with one in between arranged slot 61 attached to the cylinder.

Diese zylinderfeste Fahne 49 durchbricht bei jeder Umdrehung des Sammelzylinders 9 einen Lichtstrahl 51, der von einem Sender 52 einer gestellfesten Lichtschranke 53 auf einen Empfänger 54 trifft. Die Signale beider Lichtschranken 38, 53 werden in einer Auswerteeinheit 43 hinsichtlich ihrer Zeitdifferenz verglichen (Fig. 5), wie im ersten Ausführungsbeispiel bereits dargestellt. Sollten sich zeitliche Abweichungen ergeben beim Einlauf in das Greifersystem 12 des Sammelzylinders 9, so wird, über die Auswerteeinheit 43, wie in Fig. 5 dargestellt, eine Motor-Getriebeeinheit 63 mit dem Antrieb der Querschneideeinrichtung 4, 6 in Verbindung gebracht, um eine Synchronisation zwischen Greifersystem 12 des Sammelzylinders 9 und dem in die Lichtschranke 38 einlaufende Signatur 39 durch Verdrehen des Querschneidzylinders 4 und des Schneidnutenzylinders 6 herzustellen.This cylinder-fixed flag 49 breaks through each Rotation of the collecting cylinder 9 a light beam 51, which is fixed to a frame by a transmitter 52 Photoelectric sensor 53 meets a receiver 54. The Signals of both light barriers 38, 53 are in one Evaluation unit 43 with regard to its time difference compared (Fig. 5), as in the first embodiment already shown. Should there be any time deviations result when entering the gripper system 12 of the Collection cylinder 9, so is, via the evaluation unit 43, as shown in Fig. 5, a motor-gear unit 63 with the drive of the cross cutting device 4, 6 in Connected to synchronization between Gripper system 12 of the collecting cylinder 9 and in the Light barrier 38 incoming signature 39 by twisting of the cross cutting cylinder 4 and the cutting groove cylinder 6 manufacture.

Weiterhin ist es möglich, jeweils eine Lichtschranke 38 am Auslauf der über den Schaufelrädern 27, 33 endenden Bandleitsystemen 23, 24 bzw. 31, 16 gestellfest anzuordnen, um die Position einer Vorderkante 62 einer gefalzten Signatur 39 zu bestimmen. Eine zweite gestellfeste Lichtschranke 53 zur Ermittlung der Position der Schaufeln könnte mittels eines auf der Welle des Schaufelrades 27, 33 angebrachten Hebels 46 mit Fahne 49 bei jeder Schaufelradumdrehung unterbrochen werden. Die Auswertung erfolgt wie bereits vorbeschrieben, über eine Auswerteeinheit 43, die mit einer Motor-Getriebeeinheit 63 in Verbindung steht, die wiederum den Antrieb des Schaufelrades 27, 33 um einen Drehwinkel Alpha verdreht, falls eine Differenz zwischen der Istposition und der Sollposition der gefalzten Signatur 39 besteht.It is also possible to have one light barrier each 38 at the outlet of the above the paddle wheels 27, 33 ending tape control systems 23, 24 and 31, 16 fixed to the frame to position the position of a leading edge 62 to determine a folded signature 39. A second frame-mounted light barrier 53 for determining the The position of the blades could be determined by means of a Shaft of the paddle wheel 27, 33 attached lever 46 with flag 49 with each paddle wheel revolution to be interrupted. The evaluation is done as before described above, via an evaluation unit 43, which with a motor gear unit 63 is connected, which again the drive of the paddle wheel 27, 33 by one Angle of rotation Alpha rotates if there is a difference between the actual position and the target position of the folded Signature 39 exists.

In einem weiteren Ausführungsbeispiel (Fig. 9) wird eine Möglichkeit zur Regelung einer lagerichtigen Übergabe von gefalzten Signaturen an einen Greiferzylinder dargestellt.In a further exemplary embodiment (FIG. 9) a Possibility to regulate a correct handover of folded signatures on a gripper cylinder shown.

Dabei wirken nachfolgend noch näher zu beschreibende Teile 87; 73, 74; 39, 53, 83; 84; auf einen Differenzbildner 76, welcher zu einem Zeitpunkt des Durchlaufes der vorauslaufenden Querfalzkante 62 der Signatur 39 durch eine aus Sender 52 und Empfänger 54 bestehende Lichtschranke 53 einen voreingestellten Wert ( Sollwert) für die Länge des Weges den die Querfalzkante 62 einer Signatur 39 von der Meßbezugslinie der Lichtschranke 53 bis zur Soll-Lage der Querfalzkante 62 im Greifersysteme 19 zurücklegen muß. Dieser Weg wird in Winkelgraden (bzw. Impulsen) des Umfangswinkels des Greiferzylinders 21 über den Winkelcodierer 73, 74 gemessen.In the following, those to be described in more detail act Parts 87; 73, 74; 39, 53, 83; 84; on a difference 76, which at a time of the run the leading transverse fold edge 62 of the signature 39 by one consisting of transmitter 52 and receiver 54 Light barrier 53 a preset value (setpoint) for the length of the path the transverse fold edge 62 one Signature 39 from the measurement reference line of the light barrier 53 up to the desired position of the transverse fold edge 62 in the gripper systems 19 must travel. This path is in angular degrees (or pulses) of the circumferential angle of the gripper cylinder 21 measured via the angle encoder 73, 74.

Tatsächlich kann die Signatur 39 der vorlaufenden Querfalzkante 62 richtig, früher oder später (in Winkelgraden des Greiferzylinders 21 gemessen) an die auslösende Meßlinie der Lichtschranke 53 gelangen, die in jedem Fall einen Schaltimpuls auslöst. Dieser Schaltimpuls wird im Ausführungsbeispiel einem Trigger 83 zugeführt, der einen dauernd zählenden, bei jeder neuen Umdrehung des Winkelcodierers 73, 74 auf Zählerstand Null schaltenden Zähler 84 schaltet. Die Zählerimpulse erhält der Zähler 84 vom Winkelcodierer 73, 74. Der Zähler 84 gibt seinen Zählerstand zum Zeitpunkt des Durchschaltens der Lichtschranke 52, 54 - in Form von Impulsen - an einen Impuls-Differenzbildner 76 (Differenzzähler) ab.In fact, the signature 39 may be the leading one Cross fold edge 62 correct, sooner or later (in Degrees of angle of the gripper cylinder 21 measured) to the triggering measuring line of light barrier 53, which triggers a switching pulse in any case. This Switching pulse is a trigger in the embodiment 83 fed, the one constantly counting, at each new rotation of the encoder 73, 74 on Counter reading zero-switching counter 84 switches. The Counter 84 receives counter pulses from the angle encoder 73, 74. The counter 84 gives its counter reading Time of switching through the light barrier 52, 54 - in the form of pulses - to an impulse difference generator 76 (difference counter).

Die Lage des / der Greifersysteme(s) 19, d. h. z. B. eine gedachte Soll-Lage der Querfalzkante 62 im Greifersystem, ist mehreren oder einem bestimmten Winkel(n) z. B. 0,0000°; 0,0000°, 120,0000°, 240,0000° der Codescheibe 73 exakt zugeordnet. Hierdurch kann zum Zeitpunkt des abgegebenen Schalt-Impulses der Lichtschranke 53 die exakte Winkellage jedes gewünschten Greifersystems 19 und damit der "momentane" Abstand in Winkelgraden - bzw. eine ihnen entsprechende Anzahl von Impulsen - des Greiferzylinders 21 der Soll-Lage des Greifersystems 19 von der Meßlinie der Lichtschranke 53, festgestellt werden, also ein momentaner "Ist-Abstand". Dieser "Ist-Abstand" wird verglichen mit einem festgelegten - z. B. über das Digital-Dekaden-Potentiometer 87 voreingestellten "Soll-Abstand" zum Zeitpunkt des Durchlaufens der vorauslaufenden Querfalzkante 62 dieser Signatur 39 durch die Lichtschranke 38 (36, 37) durch diese ein Schaltimpuls erzeugt. Zum Zeitpunkt des Schaltimpulses wird der Sollwert mit dem Istwert verglichen und eine Stellgröße gebildet, die der Differenzbildner 76 einer Speichereinheit 77 zwecks Korrektur der Winkellage des Greiferzylinders 21 übergibt (dabei wird die Phasenlage einer gefalzten Signatur 39 von der Lage bzw. Entfernung d - Fig. 2 - der Vorderkante 62 der gefalzten Signatur 39 zur Lage des / der Greifersysteme(s) am Umfang des Greiferzylinders 21 bestimmt): Der Differenzbilder 76 erhält seine Sollwerteingabe über ein Digital-Dekaden-Potentiometer 87. Die Istwerterfassung der Lage der Greifersysteme 19 auf dem Greiferzylinder 21 erfolgt mittels eines seitengestellfesten Winkelcodierers 74, welcher eine achszapfenfeste Codescheibe 73 abtastet und diesen digitalen Istwert an eine Zähleinheit 84 weitergibt. Der auf Null setzbare Impulszähler 84 gibt zum Zeitpunkt eines Schaltimpulses des Triggers 83 seinen Wert zum Zeitpunkt des Durchlaufes der Querfalzkante 62 an den Differenzbildner 76 weiter, jedoch nur dann, wenn sich die Maschine in der "Druck-An" - Stellung befindet, d. h. der Kontakt ist geschlossen. Die Zähleinheit 84 kann so getriggert werden, daß sie die vom Winkelcodierer 73 ermittelten Istwerte zur Stellung des Drehwinkels des Greiferzylinders 21 nur für ausgewählte Umdrehungen, z. B. jede zweite Umdrehung, des Greiferzylinders 21 an den Differenzbildner 76 weiter in der Art.The location of the gripper system (s) 19, d. H. e.g. B. an imaginary target position of the transverse fold edge 62 in Gripper system, is several or a specific one Angle (s) z. B. 0.0000 °; 0.0000 °, 120.0000 °, 240.0000 ° the code disk 73 assigned exactly. This can at the time of the switching impulse given Light barrier 53 the exact angular position of any desired Gripper system 19 and thus the "current" distance in angular degrees - or a corresponding one Number of pulses - the gripper cylinder 21 of Target position of the gripper system 19 from the measuring line the light barrier 53, can be determined, that is a current "actual distance". This "actual distance" is compared with a specified - e.g. B. about the digital decade potentiometer 87 preset "Target distance" at the time of going through the leading transverse fold edge 62 of this signature 39 through the light barrier 38 (36, 37) through this one Switching pulse generated. At the time of the switching pulse the setpoint is compared with the actual value and a The manipulated variable is formed by the difference former 76 Storage unit 77 for the purpose of correcting the angular position of the Gripper cylinder 21 passes (the phase position a folded signature 39 of the location or distance d - Fig. 2 - the leading edge 62 of the folded signature 39 on the location of the gripper system (s) on the circumference of the Gripper cylinder 21 determines): The difference images 76 receives its setpoint input via a digital decade potentiometer 87. The actual value recording of the position of the Gripper systems 19 on the gripper cylinder 21 by means of an angle encoder 74 fixed on the side frame, which scans a code disk 73 fixed to the journal and forwards this digital actual value to a counting unit 84. The pulse counter 84, which can be set to zero, gives Time of a switching pulse of the trigger 83 its Value at the time the transverse fold edge 62 was run through to the difference former 76, but only if the machine is in the "pressure on" position, d. H. the contact is closed. The counter 84 can be triggered in such a way that it is the 73 determined actual values for the position of the angle of rotation the gripper cylinder 21 only for selected revolutions, e.g. B. every second revolution of the gripper cylinder 21 the difference former 76 further in Art.

Wie bereits oben ausgeführt, ermittelt der Differenzbilder 76 eine mögliche Impuls-Differenz der Anzahl von Soll- und Istwert-Impulsen und leitet diese an die Speichereinheit 77 weiter. Die Speichereinheit 77 gibt die anstehenden positiven oder negativen Differenz-Impulse für eine einmalige Beaufschlagung des Greiferzylinders 21 mit einer positiven oder negativen Drehzahl für eine einzige Greiferzylinderumdrehung an einen Frequenzumformer 81 weiter, der einen Drehstrommotor 82 entsprechend antreibt. Sowohl der Drehstrommotor 82 als auch ein mittels Fernbedienung 89 steuerbarer Hauptmotor 79 wirken gemeinsam über ein Differentialgetriebe 78 auf den Achszapfen 44 des Greiferzylinders, der dann kurzzeitig eine Drehzahl erhält, die höher oder niedriger als die ursprüngliche Drehzahl des Greiferzylinders 21 und nach der positiven oder negativen Drehezahlbeaufschlagung mit ursprünglicher Drehzahl weiterläuft.As already explained above, the Difference images 76 a possible pulse difference of Number of setpoint and actual value pulses and conducts them to the storage unit 77. The storage unit 77 gives the upcoming positive or negative Differential impulses for a single application of the Gripper cylinder 21 with a positive or negative Speed for a single gripper cylinder revolution to a frequency converter 81, the one Three-phase motor 82 drives accordingly. Both the Three-phase motor 82 and a remote control 89 controllable main motor 79 work together a differential gear 78 on the axle 44 of the Gripper cylinder, which then briefly revs receives that higher or lower than the original Speed of the gripper cylinder 21 and after positive or negative speed input with original speed continues.

Zusammenfassend wird das Verfahren zum lagerichtigen Übernehmen von quergefalzten Signaturen 39, die von einem Falzklappenzylinder 11 zu einem nachfolgendem Greiferzylinder 21 mittels eines Bandleitsystems 16; 17 transportiert werden, wie nachfolgend dargestellt, ausgeübt:

  • Aus einer regelmäßigen Folge von gefalzten, mit vorauslaufender Querfalzkante 62 geförderten Signaturen 39 werden ausgewählte Signaturen - z. B. jede - oder jede dritte Signatur - dazu verwendet beim Durchlaufen ihrer Querfalzkante 62 durch eine ortsfeste Lichtschranke 53 einen Schaltimpuls zu erzeugen. D. h. die Lichtschranke 53 gibt einen weiterverarbeitbaren elektrischen Impuls ab. Die Signaturen 39 werden mittels des Bandleitsystems 16; 17 von einem Zylinder zu dem nachfolgenden Greiferzylinder 21 transportiert, wobei das Bandleitsystem 16; 17 möglichst nahe an den Umfang des Greiferzylinders 21 heranreichen und möglichst eine tangetiale Übergabe der Signaturen 39 zum Greiferzylinder 21, und damit in die Greifersysteme 19 ermöglichen soll.
  • In summary, the method for the correct transfer of cross-folded signatures 39, which are transferred from a folding jaw cylinder 11 to a subsequent gripper cylinder 21 by means of a belt guide system 16; 17 transported, as shown below:
  • From a regular sequence of folded signatures 39, which are conveyed with a leading transverse folding edge 62, selected signatures - e.g. B. every - or every third signature - used to generate a switching pulse when passing through its transverse fold edge 62 through a fixed light barrier 53. That is, the light barrier 53 emits a further processable electrical pulse. The signatures 39 are by means of the tape control system 16; 17 transported from one cylinder to the subsequent gripper cylinder 21, the belt guide system 16; 17 should come as close as possible to the circumference of the gripper cylinder 21 and, if possible, enable the signatures 39 to be transferred tangentially to the gripper cylinder 21 and thus into the gripper systems 19.
  • Die Lichtschranke 53 ist am oder in der Nähe des Bandleitsystemes 16; 17 angeordnet.The light barrier 53 is on or near the Conveyor control system 16; 17 arranged.

    Der von der Lichtschranke 53 erzeugte Schalt-Impuls dient dazu, eine momentane Messung der Ist-Winkellage 91 des oder der zur Übernahme der ausgewählten Signatur(en) Greifersysteme 19 auszulösen.The switching pulse generated by the light barrier 53 serves to measure the actual angular position 91 at the moment of the person (s) to accept the selected signature (s) Trigger gripper systems 19.

    Zum Zeitpunkt der Durchschaltung der Lichtschranke 53 durch die vorauslaufende Querfalzkante 62 wird gleichzeitig eine momentane Ist-Winkellage 91 des zur Übernahme der vorbestimmten Signatur 39 vorgesehenen Greifersystems 19 des Greiferzylinders 21 festgestellt und aufgrund beider Daten "prognostisch" ermittelt, daß z. B. die "Signaturen zu früh" 93 oder die "Signaturen in Soll-Lage" 92 oder die "Signaturen zu spät" 91 eintreffen werden, sofern die Bedingungen, unter denen die vorbestimmten Signaturen 39 transportiert werden, sich zwischenzeitlich nicht ändern. Danach wird die "prognostizierte" Winkellage 91 mit der Soll-Winkellage 92 des vorgesehenen Greifersystems 19 verglichen und ein elektrisches Differenzwertsignal mit dem Wert Null bzw. bei Abweichungen mit einem positiven bzw. negativen Wert gebildet. Nachfolgend wird das Differenzwertsignal in einer elektronischen Steuereinheit in einen positiven oder negativen Stellwert für eine Umfangsverdrehung des Greiferzylyinders 21 inbezug auf die meßtechnisch erfaßte Lage der Falzkante 62 der vorbestimmten gefalzten Signatur 39 umgewandelt. Schließlich wird der Greiferzylinder 21 mittels Antriebsmitteln, z. B. einer Motor-Getriebeeinheit 63 oder einem frequenzgesteuertem Drehstrommotor 82 mit Differentialgetriebe 73, in die entsprechende errechnete Soll-Winkellage 92 gebracht, so daß ein lagerichtiges Übernehmen der gefalzten Signaturen 39 durch die Greifersysteme 19 des Greiferzylinders 21 gewährleistet ist. Wird der Greiferzylinder 21 seiner Drehrichtung H im Uhrzeigersinn verstellt, so wird dieser entsprechend dem errechneten positiven Wert während einer Umdrehung mit einer Umlaufwinkelverdrehung beaufschlagt, so daß der Greiferzylinder 21 kurzzeitig schneller läuft gegenüber der bisherigen Betriebsdrehzahl.At the time of switching on the light barrier 53 by the leading transverse fold edge 62 at the same time a current actual angular position 91 of the Provision of the predetermined signature 39 provided Gripper system 19 of the gripper cylinder 21 determined and determined "prognostically" on the basis of both data that e.g. B. the "signatures too early" 93 or the "signatures in target position "92 or the" signatures too late "91 will arrive provided the conditions under which the predetermined signatures 39 are transported, do not change in the meantime. After that the "Predicted" angular position 91 with the target angular position 92 of the provided gripper system 19 compared and an electrical differential value signal with the value zero or with deviations with a positive or negative Value formed. The difference value signal follows in an electronic control unit in a positive or negative control value for a circumferential rotation of the gripper cylinder 21 in relation to the measurement technology detected position of the folded edge 62 of the predetermined folded signature 39 converted. Finally the Gripper cylinder 21 by means of drive means, for. B. one Motor gear unit 63 or a frequency controlled Three-phase motor 82 with differential gear 73, in the corresponding calculated target angular position 92 brought so that a correct takeover of the folded signatures 39 by the gripper systems 19 of the gripper cylinder 21 is guaranteed. Becomes the gripper cylinder 21 of its direction of rotation H in Adjusted clockwise, it will be adjusted accordingly calculated positive value during one revolution with applied a rotation angle so that the Gripper cylinder 21 briefly runs opposite the previous operating speed.

    Ist es erforderlich, den Greiferzylinder 21 entgegen seiner Drehrichtung H, also im Gegenuhrzeigersinn, zu verstellen, so wird der Greiferzylinder 21 entsprechend dem errechneten negativen Wert während einer Umlaufwinkelverdrehung beaufschlagt, so daß der Greiferzylinder 21 kurzzeitig langsamer läuft gegenüber der bisherigen Betriebsdrehzahl.It is necessary to counter the gripper cylinder 21 its direction of rotation H, i.e. counterclockwise, to adjust, the gripper cylinder 21st according to the calculated negative value during applied a rotation angle so that the Gripper cylinder 21 runs briefly slower the previous operating speed.

    Neben einer kurzzeitigen Erhöhung bzw. Erniedrigung der Drehzahl des Greiferzylinders 21 zum Zwecke der Veränderung der Phasenlage des Greiferzylinders 21 zu den auf ihm ankommenden Signaturen 39, kann auch die Phasenlage zwischen Antriebswelle 44 und dem Zylinderkörper des Greiferzylinders 21 entsprechend verändert werden. Dies kann dadurch geschehen, daß zwischen der Achse 44 des Greiferzylinders 21 und dem Greiferzylinderkörpers eine Kupplung wirkt, welche zum Zwecke des Verdrehens des Greiferzylinders 21 inbezug auf die Achse 44 des Greiferzylinders 21 kurzzeitig zwecks Einwirken eines elektromotorischen Stellantriebes gelöst wird und der Greiferzylinderkörper auf der Welle 44 über ein elektronisches Zahnradgetriebe entsprechend verdreht wird. In addition to a brief increase or decrease the speed of the gripper cylinder 21 for the purpose of Changing the phase position of the gripper cylinder 21 to the signatures 39 arriving on it, can also the phase position between the drive shaft 44 and the Cylinder body of the gripper cylinder 21 accordingly to be changed. This can be done in that between the axis 44 of the gripper cylinder 21 and the Gripper cylinder body acts a clutch, which for Purpose of rotating the gripper cylinder 21 in relation on the axis 44 of the gripper cylinder 21 briefly for the purpose of an electromotive actuator is released and the gripper cylinder body on the shaft 44 via an electronic gear transmission accordingly is twisted.

    TeilelisteParts list

    11
    SeitengestellSide frame
    22nd
    PapierbahnstrangPaper web strand
    33rd
    ZugwalzenpaarPull roller pair
    44th
    QuerschneidzylinderCross cutting cylinder
    55
    --
    66
    SchneidnutenzylinderGroove cylinder
    77
    BandleitsystemBelt guidance system
    88th
    BandleitsystemBelt guidance system
    99
    SammelzylinderCollecting cylinder
    1010th
    --
    1111
    FalzklappenzylinderJaw cylinder
    1212th
    Greifersystem (9)Gripper system (9)
    1313
    Falzmessersystem (9)Folding knife system (9)
    1414
    Falzklappensystem (11)Folding jaw system (11)
    1515
    --
    1616
    BandleitsystemBelt guidance system
    1717th
    BandleitsystemBelt guidance system
    1818th
    --
    1919th
    Greifersystem (21)Gripper system (21)
    2020th
    --
    2121
    GreiferzylinderGripper cylinder
    2222
    BandleitsystemBelt guidance system
    2323
    BandleitsystemBelt guidance system
    2424th
    BandleitsystemBelt guidance system
    2525th
    --
    2626
    --
    2727
    Schaufelrad, erstes Paddle wheel, first
    2828
    Querfalzauslage, ersteCross fold delivery, first
    2929
    WeicheSwitch
    3030th
    --
    3131
    BandleitsystemBelt guidance system
    3232
    UmlenkwalzeDeflection roller
    3333
    Schaufelrad, zweitesPaddle wheel, second
    3434
    Querfalzauslage, zweiteCross fold delivery, second
    3535
    --
    3636
    Sender (38)Channel (38)
    3737
    Empfänger (38)Receiver (38)
    3838
    Lichtschranke (36 37); Lageermittlungseinrichtung, ersteLight barrier (36 37); Location determination device, first
    3939
    Signatur, gefalzteSignature, folded
    4040
    --
    4141
    LichtstrahlBeam of light
    4242
    Verstärkeramplifier
    4343
    AuswerteeinheitEvaluation unit
    4444
    Achszapfen (21)Journal (21)
    4545
    --
    4646
    Hebellever
    4747
    Ende, erstes (46)End, first (46)
    4848
    Ende, zweites (46)End, second (46)
    4949
    Fahne (46)Flag (46)
    5050
    --
    5151
    LichtstrahlBeam of light
    5252
    Sender (53)Transmitter (53)
    5353
    Lichtschranke (52, 54); Lageermittlungseinrichtung, zweite, zusammen mit (49)Light barrier (52, 54); Location determination device, second, together with (49)
    5454
    Empfänger (53) Receiver (53)
    5555
    --
    5656
    LagerbockBearing block
    5757
    Verstärkeramplifier
    5858
    Schenkel (49)Thigh (49)
    5959
    Schenkel (49)Thigh (49)
    6060
    --
    6161
    Schlitz (49)slot (49)
    6262
    Querfalzkante (39)Cross fold edge (39)
    6363
    Motor-GetriebeeinheitMotor gear unit
    6464
    Verstärkeramplifier
    6565
    --
    6666
    PotentiometerPotentiometer
    6767
    Bogensignal (A)Arc signal (A)
    6868
    Bogensignal (B)Arc signal (B)
    6969
    Bogensignal (C)Arc signal (C)
    7070
    --
    7171
    Eingabeinput
    7272
    Schmitt-TriggerSchmitt trigger
    7373
    CodescheibeCode disc
    7474
    WinkelcodiererEncoder
    7575
    --
    7676
    DifferenzbildnerDifference-maker
    7777
    SpeicherreinheitStorage purity
    7878
    DifferentialgetriebeDifferential gear
    7979
    Hauptmotormain engine
    8080
    --
    8181
    FrequenzumformerFrequency converter
    8282
    DrehstrommotorAC motor
    8383
    Trigger Trigger
    8484
    ZähleinheitCounting unit
    8585
    --
    8686
    Analog-Digital-WandlerAnalog-to-digital converter
    8787
    PotentiometerPotentiometer
    8888
    Fernbedienungremote control
    8989
    Fernbedienung (79)Remote control (79)
    9090
    --
    9191
    Ist-Winkellage (39), zu früh (+)Actual angular position (39), too early (+)
    9292
    Soll-Winkellage (39)Target angular position (39)
    9393
    Ist-Winkellage (39), zu spät (-)Actual angular position (39), too late (-)
    AA
    Bereich Signal 67 (Bogen zu früh)Signal 67 area (sheet too early)
    BB
    Bereich Signal 68 (Bogen richtig)Signal 68 area (correct sheet)
    CC.
    Bereich Signal 69 (Bogen zu spät)Signal 69 area (sheet too late)
    HH
    ProduktionsrichtungProduction direction
    UU
    Spannungtension
    XX
    EinzelheitDetail
    YY
    EinzelheitDetail
    dd
    Abstanddistance
    tF t F
    Zeitpunkt Fahne (53)Time flag (53)
    tS t p
    Zeitpunkt Signatur (38)Time signature (38)
    UF U F
    Signalsignal
    UB U B
    Signal (39)Signal (39)

    Claims (11)

    1. Process for the correctly positioned transfer of cross-folded signatures (39) from a folding-jaw cylinder (11) to a following gripper cylinder (21), the folded signatures (39) being transported and transferred from the folding-jaw cylinder (11) to the following gripper cylinder (21) by means of a belt-guiding system (16; 17), characterized in that a leading cross-folded edge (62) of a signature (39) predeterminable from a regular sequence of folded signatures is used in each case to ascertain continuously the instant at the end of the belt-guiding system (16; 17) for the purpose of ascertaining the position relative to an instantaneous actual angular position (91) of a gripper system (19) provided for the transfer of the predetermined signature (39) and belonging to a gripper cylinder (21), and the instant is acquired as a value, in that the acquired instantaneous actual angular position (91) is then compared with a desired angular position (92) of the provided gripper system (19) and an electrical differential-value signal is thus formed, in that the differential-value signal is converted in an electronic control unit into a control output for turning the angle of rotation of the gripper cylinder (21) in relation to the acquired position of the folded edge (62) of the predetermined folded signature (39), in that the gripper cylinder (21) is lastly brought into a corresponding desired angular position (92) by means of drive means (63; 82, 78).
    2. Process according to Claim 1, characterized in that the folded signatures (39) coming from the belt-guiding system (16; 17) pass through a position-determining device (38) arranged at the exit of this belt-guiding system (16; 17) at a distance (d) from the periphery of the gripper cylinder (21) on their way from the folding-jaw cylinder (11) to the gripper cylinder (21), in that the instant (ts) at which the leading cross-folded edge (62) of the folded signature (39) arrives is fed to a memory of an evaluation unit (43) by this first position-determining device (38), in that an instant (tF) at which a gripper system (19) of the gripper cylinder (21) passes through into a predetermined transfer position for the transfer is likewise transmitted to this evaluation unit (43) by a signal (UF) from a second position-determining device (49; 53) which signals the current position of the gripper systems (19), in that both signals (UB; UF) are compared in the evaluation unit (43) with an entered desired value (71) with regard to the expected positional accuracy (A; B; C) of the said signatures (39) to be taken up in the gripper systems (19), in that, in the event of a deviation from the required positional accuracy (A; C) of the said signatures (39), a motor-gear unit (63) acting on a drive of the gripper cylinder (21) is subjected to a change in rotational speed by the evaluation unit (43) such that the deviation (A; C) in the positional accuracy is eliminated.
    3. Apparatus for the correctly positioned transfer of cross-folded signatures (39) having a folding-jaw cylinder (11) and a following gripper cylinder (21), a belt-guiding system (16; 17) being provided which transports the folded signatures (39) from the folding-jaw cylinder (11) to the following gripper cylinder (21), characterized in that a first position-determining device (38) is provided for ascertaining the instant at which a cross-folded edge (62) of a folded signature (39) passes through at the end of the belt-guiding system (16; 17), in that a second positioning-determining device (49; 53) is provided for the determination of the instant at which a gripper system (19) of the gripper cylinder (21) passes through in a predetermined transfer position, in that the position-determining devices (38; 49, 53) are connected to an evaluation unit (43) comprising a computer and a memory, in that the evaluation unit (43) is connected to a drive of a motor-gear unit (63) for adjusting the angular position of the gripper system (19) of the gripper cylinder (21).
    4. Apparatus according to Claim 3, characterized in that the first position-determining device (38) tor ascertaining the instant at which a cross-folded edge (62) of a folded signature (39) passes through comprises a light barrier (38) which is fixed to the side frame and can be interrupted by a folded signature (39).
    5. Apparatus for carrying out the process according to Claim 3, characterized in that the second position-determining device (49; 53) for the determination of the instant at which a gripper system (19) passes through in a predetermined transfer position comprises a lug (49) which is arranged in the vicinity of the periphery of the gripper cylinder (21) having the gripper systems (19) in a manner such that it is fixed to the cylinder and which passes through a light barrier (53) arranged in a manner such that it is fixed to the side frame.
    6. Apparatus according to Claim 5, characterized in that the lug (49) has two legs (58, 59) which are arranged parallel to one another and between which there is a slot (61).
    7. Apparatus according to Claim 6, characterized in that each leg (58, 59) of the lug (49) [lacuna] to a lug region (A; C), in that the slot (61) of the lug (49) corresponds to a lug region (B).
    8. Apparatus according to Claim 3, characterized in that a code disc (73) and an angle encoder (74) which is fixed to the frame are associated with the gripper cylinder (21), in that the angle encoder (74) is connected to a difference former (76) via a counting unit (84) for the transmission of its actual values, in that signals (UB) of the instant (tS) at which the cross-folded edge (62) of the signature (39) arrives is [sic] sent to the counting unit (84) in the "machine on-position" via a trigger (83), in that a presettable desired value is transmitted to the difference former (76) by a potentiometer (87), in that the difference former (76) is in connection with a frequency-controllable auxiliary drive (81; 82) via a memory unit (77), in that the auxiliary drive (81; 82) and a main drive (79; 89) is [sic] positively connected to a journal (44) of the gripper cylinder (21) via a differential gear (78).
    9. Apparatus according to Claim 8, characterized in that the auxiliary drive (82) comprises a three-phase motor (82) whose rotational speed is controllable by means of a frequency converter (81).
    10. Apparatus according to Claim 8, characterized in that the main drive (79; 89) comprises a remotely controllable d.c. motor (79).
    11. Process for the correctly positioned transfer of cross-folded signatures (39) from a folding-jaw cylinder (11) to a following gripper cylinder (21), the folded signatures (39) being transported and transferred from the folding-jaw cylinder (11) to the following gripper cylinder (21) by means of a belt-guiding system (16; 17), characterized in that the position at a given instant or the arrival at a fixed location of a folded signature (39) on its way to a gripper system (19) assigned to it on a rotating gripper cylinder (21) is acquired and thus an actual distance from a reference line is acquired, in that the angular position of the gripper cylinder (21) is changed in accordance with a comparison value of actual distance and desired distance.
    EP94913023A 1993-04-28 1994-04-28 Process and device for the correctly positioned transfer of folded signatures in folders Expired - Lifetime EP0683750B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE4313942 1993-04-28
    DE4313942 1993-04-28
    PCT/DE1994/000471 WO1994025383A1 (en) 1993-04-28 1994-04-28 Process and device for the correctly positioned transfer of folded signatures in folders

    Publications (2)

    Publication Number Publication Date
    EP0683750A1 EP0683750A1 (en) 1995-11-29
    EP0683750B1 true EP0683750B1 (en) 1998-06-24

    Family

    ID=6486620

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP94913023A Expired - Lifetime EP0683750B1 (en) 1993-04-28 1994-04-28 Process and device for the correctly positioned transfer of folded signatures in folders

    Country Status (5)

    Country Link
    US (1) US5732944A (en)
    EP (1) EP0683750B1 (en)
    JP (1) JP2717028B2 (en)
    DE (2) DE59406325D1 (en)
    WO (1) WO1994025383A1 (en)

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    DE4492614D2 (en) 1996-06-27
    DE59406325D1 (en) 1998-07-30
    EP0683750A1 (en) 1995-11-29
    WO1994025383A1 (en) 1994-11-10
    US5732944A (en) 1998-03-31
    JP2717028B2 (en) 1998-02-18
    JPH08510982A (en) 1996-11-19

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