EP2017088B1 - Stapler - Google Patents

Stapler Download PDF

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Publication number
EP2017088B1
EP2017088B1 EP08159630A EP08159630A EP2017088B1 EP 2017088 B1 EP2017088 B1 EP 2017088B1 EP 08159630 A EP08159630 A EP 08159630A EP 08159630 A EP08159630 A EP 08159630A EP 2017088 B1 EP2017088 B1 EP 2017088B1
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EP
European Patent Office
Prior art keywords
stitching
cylinder
stapling
head
speed
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.)
Not-in-force
Application number
EP08159630A
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German (de)
French (fr)
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EP2017088A1 (en
Inventor
Manfred Wenzel
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 AG
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Publication date
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Publication of EP2017088A1 publication Critical patent/EP2017088A1/en
Application granted granted Critical
Publication of EP2017088B1 publication Critical patent/EP2017088B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
    • B42B4/00—Permanently attaching together sheets, quires or signatures by discontinuous stitching with filamentary material, e.g. wire
    • B42B4/02—Rotary type stitching machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/64—Collecting
    • B41F13/66—Collecting and stapling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/04—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for securing together articles or webs, e.g. by adhesive, stitching or stapling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/28—Folding in combination with cutting

Definitions

  • the invention relates to a stapling apparatus according to the features of claim 1.
  • EP 1 588 813 A1 is a stapler with a stitching wire loadable stapling head, wherein the stitching wire is driven by a motor to a periodic movement in the course of which he meets for stapling products with a stapling plate, known.
  • the web speed of the stapling head and the stapling plate must be exactly matched to that of the product to be stapled, and also the rate at which stapling can take place must correspond to the delivery rate of the products.
  • the length of the path traveled by the stapling head between two stapling operations equals the distance at which successive products are discharged from the printing press and received by the folder equal to the length of the fields on the circumference of a folding blade cylinder of the folder.
  • the DE 29 48 747 A1 discloses a stapler whose stapling tape is driven by a motor. The speed of the stapling head is changed by changing the eccentricity of a connecting rod.
  • the invention has for its object to provide a stapler.
  • the achievable with the present invention consist in particular in that the stapler with a stapling wire beaufitbaren stapling head, which is driven by a motor to a periodic movement, during which he meets for stapling products with a closing plate, and a control device for modulating of the web speed amount of the stapling head having a modulation frequency that is a harmonic of the frequency of the periodic motion.
  • a control device makes it possible, with constant speed of the stapling head and the closing plate during stapling the time interval between two stapling operations (or the same time the speed of stapling head and closing plate during stapling) to vary, so that an adjustment of the speed of stapling head to the The stapled products for different product lengths is possible. This allows the use of the stapler in conjunction with printing machines or staplers with different plate or field lengths.
  • the stapling head is preferably carried by a rotationally driven by the motor stapling cylinder.
  • the modulation frequency is the nth harmonic of the rotational frequency.
  • the closing plate may be mounted on a second rotatable cylinder. If the web diameter of the closing plate on the second cylinder is different from the web diameter of the stapling head, the controller modulates the web speed amount of the stapling head such that during stapling, web speeds of the stapling head and the closing plate coincide and at least temporarily do not coincide outside the stapling.
  • control means preferably modulates the rotational speed of the motor such that during stapling the web speeds of the stapling head and the closing plate reach an extreme value.
  • the controller is preferably arranged to at least temporarily differentiate the web speed of the stapling head during stapling equal to the conveying speed of products to be folded in the folder and outside of stapling from that conveying speed.
  • the in Fig. 1 shown stapler comprises a rotatably mounted, from a position-controlled motor 11, z. B. a servo motor 11, in particular position-controlled electric motor, driven cylinder 01, in particular stitching cylinder 01, on whose lateral surface two pairs of stapling heads 02; 03 are arranged diametrically.
  • the stitching heads 02; 03 have each designed as a cutting blade lateral edge for shearing a piece of stitching wire 04, which is supplied to the stitching heads 02 via a guide channel 06 from a supply roll 07 and the stitching heads 03 via a guide channel 08 from a supply roll 09.
  • the stitching wire 04 clamping roller pair 25 drives.
  • each is an electric motor 15; 20 provided for driving each pair of rollers 25; Since the feed speed of the stitching wire 04 at the stitching heads 02 and 03 is the same, both pairs of rollers 25 can by a be driven same motor.
  • the through the stitching heads 02; 03 cut wire pieces are in the course of rotation of the stapling cylinder 01 of the stitching heads 02; 03 in a conventional manner taken to form rolls, in cooperation with the stitching heads 02; 03 form the wire pieces into staples with which finally (not shown) products are stapled, the gap 14 between the stapling cylinder 01 and a closing plate 12 bearing cylinder 13 perpendicular to the plane of Fig. 1 run through.
  • the speed of the servomotor 11 is controlled by a control circuit 16 on the basis of two input quantities.
  • One of these input quantities is the frequency f at which the products to be stapled arrive at the stapler; it is variable and is provided by the control of a printing machine delivering the products to be stapled or a sensor detecting the movement of the product to be stapled, which may be mounted in the printing machine or even in the stapler itself.
  • the second size r, z. B. Ratio r denotes the ratio between the plate length of the printing press or, which is usually synonymous, the length of the products supplied by the printing press, the distance of the stitching heads 02; 03 from each other along the circular path described by them during the rotation of the stapling cylinder 01.
  • the ratio r is usually constant in a stapler fixed to a printing machine and may be hard-wired.
  • the control circuit 16 keeps the rotational speed of the motor 11 at a constant value proportional to the frequency f; if r deviates from 1, it keeps the rotational speed at this value only during the passage of stitching heads 02; 03 through the gap 14.
  • the amount of the web speed is increased when r> 1, and it is decreased when r ⁇ 1.
  • Fig. 2 schematically shows the stapling cylinder 01 and the cylinder 13 of the stapler in conjunction with a folding apparatus according to a first embodiment of the invention.
  • a printing press comprises in a conventional manner a cross-cutting device with a cylinder 17, z. B. knife cylinder 17 and a cylinder 18, z. B. counter cylinder 18 for disassembling one of a printing press (not shown) coming printed web 19 into individual products, which are then followed by holding means 21, z. B. grippers 21 of a folding blade 22 and passed from folding blades 23 to a jaw cylinder 24.
  • the stapler is disposed between the cross cutter and the folding blade cylinder 22 on the path of the products.
  • the folding blade 22 has here five fields, each with a gripper 21 and a folding blade 23 on its circumference.
  • the length of the fields corresponds to the plate length of the printing press.
  • the knife cylinder 17 is provided with two diametrically arranged blades 26. So that they can move during the cutting of the material web 19 at the same web speed as this, the diameter of the knife cylinder 17 must be two-fifths that of the folding blade 22.
  • the diameter of the cylinder 13 and the web diameter of the stitching heads 02; 03 of the stapling cylinder 01 is smaller than two-fifths of the diameter of the folding blade 22.
  • the control circuit 16 modulates the rotational speed of the servomotor 11 such that the stitching heads 02; 03 and closing plates 12 pass through the gap 14 at the same web speed as the products, the stitching heads 02; 03 but move faster outside of the gap 14 on at least part of their way.
  • FIG. 4 shows by way of example the course of the angular velocity w of the servomotor 11 as a function of the rotation angle ⁇ of the motor 11.
  • Angle intervals in which a stapling operation takes place are shown in FIG Fig. 4 highlighted by hatching; at these angular intervals the angular velocity w is low, outside these intervals at least temporarily increased, wherein the amount of increase and / or the extent of the angular interval in which the angular velocity w is increased, is dependent on the ratio r.
  • the frequency of the speed modulation is twice the rotational frequency or the frequency with which the products pass the stapler.
  • cylinders 01; 13 are indeed zweeldeldrig, as well as the cylinder 17; 18 of the cross cutter, but they are slimmer than the latter.
  • Another important advantage is that, since no fixed ratio between the diameters of the cylinder 01; 12 and those of the folder must be respected, a same model of stapler can be used in folders, which are designed for different product lengths. Because of this general utility, it is possible to cost-effectively manufacture the stapler in relatively large quantities.
  • FIG. 3 shown second embodiment of the invention, according to a folding blade cylinder of a folder simultaneously serves as a cylinder 13 of the stapler.
  • the rotational speed of the cylinder 13 is coupled to the speed of the upstream printing machine and be substantially constant.
  • ⁇ of the - just as with respect to Fig. 1 described stapling cylinder 01 with the aid of the controlled by the control circuit 16 motor 11 as in Fig. 4 is shown varied.
  • the achievable advantages are the same as in the embodiment of Fig. 2 ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)
  • Massaging Devices (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)

Abstract

The stapler has stable heads (02, 03) driviable to a periodic motion in which a progression of the heads to staple a product coincides with a movable plate (12). The heads are supported by a staple cylinder (01) rotatably driven by a position-controlled servomotor (11), and the plate is mounted on another rotatable cylinder (13) e.g. folding blade cylinder. A control device (16) modulates a orbit speed value of the heads with a modulation frequency such that an orbit speed of the heads and the plate corresponds to each other while stapling and temporarily does not correspond while unstapling.

Description

Die Erfindung betrifft einen Heftapparat gemäß den Merkmalen des Anspruchs 1.The invention relates to a stapling apparatus according to the features of claim 1.

Aus der EP 1 588 813 A1 ist ein Heftapparat mit einem mit Heftdraht beschickbaren Heftkopf, wobei der Heftdraht durch einen Motor zu einer periodischen Bewegung antreibbar ist, in deren Verlauf er zum Heften von Produkten mit einer Heftplatte zusammentrifft, bekannt.From the EP 1 588 813 A1 is a stapler with a stitching wire loadable stapling head, wherein the stitching wire is driven by a motor to a periodic movement in the course of which he meets for stapling products with a stapling plate, known.

Um ein Reißen von zu heftenden Produkten während des Heftvorganges zu vermeiden, muss die Bahngeschwindigkeit des Heftkopfes und der Heftplatte exakt an die des zu heftenden Produktes angepasst sein, und auch die Rate, mit der geheftet werden kann, muss mit der Förderrate der Produkte übereinstimmen. Dies führt dazu, dass wenn der herkömmliche Heftapparat am Ausgang einer Druckmaschine in Kombination mit einem Falzapparat eingesetzt wird, die Länge des von dem Heftkopf zwischen zwei Heftvorgängen zurückgelegten Weges gleich dem Abstand, mit dem aufeinanderfolgende Produkte von der Druckmaschine ausgegeben und vom Falzapparat aufgenommen werden bzw. gleich der Länge der Felder am Umfang eines Falzmesserzylinders des Falzapparates sein muss. Dies bedeutet, dass wenn der Heftkopf beispielsweise auf einem rotierenden Heftzylinder montiert ist, der Bahndurchmesser des Heftkopfes exakt an den Durchmesser des Falzmesserzylinders bzw. eines Plattenzylinders der Druckmaschine angepasst sein muss. Um die Produkte von Druckmaschinen mit unterschiedlichen Plattenlängen zu verarbeiten, sind daher jeweils spezifisch dimensionierte Heftapparate erforderlich. Dies macht die Serien, in denen die Heftapparate gefertigt werden können, klein und ihre Fertigungskosten dementsprechend hoch.In order to avoid tearing of products to be stapled during the stapling operation, the web speed of the stapling head and the stapling plate must be exactly matched to that of the product to be stapled, and also the rate at which stapling can take place must correspond to the delivery rate of the products. As a result, when the conventional stapler is used at the exit of a printing press in combination with a folder, the length of the path traveled by the stapling head between two stapling operations equals the distance at which successive products are discharged from the printing press and received by the folder equal to the length of the fields on the circumference of a folding blade cylinder of the folder. This means that if the stapling head is mounted, for example, on a rotating stapling cylinder, the web diameter of the stapling head must be exactly matched to the diameter of the folding blade cylinder or a plate cylinder of the printing press. In order to process the products of printing presses with different plate lengths, therefore, each specific sized staplers are required. This makes the series in which the staplers can be made small and their manufacturing costs accordingly high.

Die DE 29 48 747 A1 offenbart eine Heftmaschine, deren Heftband von einem Motor angetrieben ist. Die Geschwindigkeit des Heftkopfes wird durch Veränderung der Exzentrizität einer Pleuelstange verändert.The DE 29 48 747 A1 discloses a stapler whose stapling tape is driven by a motor. The speed of the stapling head is changed by changing the eccentricity of a connecting rod.

Der Erfindung liegt die Aufgabe zugrunde, einen Heftapparat zu schaffen.The invention has for its object to provide a stapler.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.The object is achieved by the features of claim 1.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass der Heftapparat mit einem mit Heftdraht beschickbaren Heftkopf, der durch einen Motor zu einer periodischen Bewegung antreibbar ist, in deren Verlauf er zum Heften von Produkten mit einer Schließplatte zusammentrifft, und der eine Steuereinrichtung zum Modulieren des Bahngeschwindigkeitsbetrages des Heftkopfes mit einer Modulationsfrequenz aufweist, die eine Harmonische der Frequenz der periodischen Bewegung ist. Eine solche Steuereinrichtung ermöglicht es, bei gleichbleibender Geschwindigkeit des Heftkopfes und der Schließplatte während des Heftens den Zeitabstand zwischen zwei Heftvorgängen (oder bei gleichbleibendem Zeitabschnitt die Geschwindigkeit von Heftkopf und Schließplatte während des Heftens) zu variieren, so dass eine Anpassung der Geschwindigkeit von Heftkopf an die der zu heftenden Produkte bei unterschiedlichen Produktlängen möglich ist. Dies erlaubt die Verwendung des Heftapparates in Verbindung mit Druckmaschinen bzw. Heftapparaten mit unterschiedlichen Platten- bzw. Felderlängen.The achievable with the present invention consist in particular in that the stapler with a stapling wire beaufitbaren stapling head, which is driven by a motor to a periodic movement, during which he meets for stapling products with a closing plate, and a control device for modulating of the web speed amount of the stapling head having a modulation frequency that is a harmonic of the frequency of the periodic motion. Such a control device makes it possible, with constant speed of the stapling head and the closing plate during stapling the time interval between two stapling operations (or the same time the speed of stapling head and closing plate during stapling) to vary, so that an adjustment of the speed of stapling head to the The stapled products for different product lengths is possible. This allows the use of the stapler in conjunction with printing machines or staplers with different plate or field lengths.

Der Heftkopf ist vorzugsweise von einem durch den Motor drehangetriebenen Heftzylinder getragen.The stapling head is preferably carried by a rotationally driven by the motor stapling cylinder.

Wenn auf einem solchen Heftzylinder n Heftköpfe über den Zylinderumfang gleichmäßig verteilt sind, ist die Modulationsfrequenz die n-te Harmonische der Drehfrequenz.If n stapling heads are uniformly distributed over the circumference of the cylinder on such a stapling cylinder, the modulation frequency is the nth harmonic of the rotational frequency.

Die Schließplatte kann an einem zweiten drehbaren Zylinder montiert sein. Wenn der Bahndurchmesser der Schließplatte an dem zweiten Zylinder vom Bahndurchmesser des Heftkopfes verschieden ist, moduliert die Steuereinrichtung den Bahngeschwindigkeitsbetrag des Heftkopfes derart, dass während des Heftens Bahngeschwindigkeiten des Heftkopfes und der Schließplatte übereinstimmen und außerhalb des Heftens wenigstens zeitweilig nicht übereinstimmen.The closing plate may be mounted on a second rotatable cylinder. If the web diameter of the closing plate on the second cylinder is different from the web diameter of the stapling head, the controller modulates the web speed amount of the stapling head such that during stapling, web speeds of the stapling head and the closing plate coincide and at least temporarily do not coincide outside the stapling.

Dies ist insbesondere dann zweckmäßig, wenn der zweite Zylinder gleichzeitig Falzmesserzylinder eines Falzapparates ist, da dieser eine im Wesentlichen konstante Drehgeschwindigkeit halten muss.This is particularly useful when the second cylinder is simultaneously folding blade cylinder of a folder, as this must maintain a substantially constant rotational speed.

Um die Amplitude der Geschwindigkeitsmodulation zu minimieren, moduliert die Steuereinrichtung die Drehgeschwindigkeit des Motors vorzugsweise so, dass während des Heftens die Bahngeschwindigkeiten des Heftkopfes und der Schließplatte einen Extremwert erreichen.In order to minimize the amplitude of the velocity modulation, the control means preferably modulates the rotational speed of the motor such that during stapling the web speeds of the stapling head and the closing plate reach an extreme value.

Wenn der Heftapparat Teil eines Falzapparates ist, ist die Steuereinrichtung vorzugsweise eingerichtet, die Bahngeschwindigkeit des Heftkopfes während des Heftens gleich der Fördergeschwindigkeit von in dem Falzapparat zu falzenden Produkten und außerhalb des Heftens wenigstens zeitweilig von dieser Fördergeschwindigkeit verschieden zu machen.When the stapler is part of a folder, the controller is preferably arranged to at least temporarily differentiate the web speed of the stapling head during stapling equal to the conveying speed of products to be folded in the folder and outside of stapling from that conveying speed.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Es zeigen:

Fig. 1
eine schematische Darstellung eines Heftapparates;
Fig. 2
eine schematische Seitenansicht des Heftapparates in Beziehung zu einem Falzapparat gemäß einer ersten Ausgestaltung der Erfindung;
Fig. 3
eine zu Fig. 2 analoge Seitenansicht gemäß einer zweiten Ausgestaltung der Erfindung;
Fig. 4
ein Beispiel für die zeitliche Entwicklung des Umfangsgeschwindigkeitsbetrages der Heftköpfe des Falzapparates.
Show it:
Fig. 1
a schematic representation of a stapler;
Fig. 2
a schematic side view of the stapler in relation to a folding apparatus according to a first embodiment of the invention;
Fig. 3
one too Fig. 2 analogous side view according to a second embodiment of the invention;
Fig. 4
an example of the temporal evolution of the peripheral speed amount of stapling heads of the folder.

Der in Fig. 1 gezeigte Heftapparat umfasst einen drehbar gelagerten, von einen lagegeregelten Motor 11, z. B. einem Servomotor 11, insbesondere lagegeregelten Elektromotor, angetriebenen Zylinder 01, insbesondere Heftzylinder 01, an dessen Mantelfläche zwei Paare von Heftköpfen 02; 03 diametral angeordnet sind. Die Heftköpfe 02; 03 haben jeweils eine als Schneidklinge ausgebildete seitliche Flanke zum Abscheren eines Stückes Heftdraht 04, der den Heftköpfen 02 über einen Führungskanal 06 von einer Vorratsrolle 07 und den Heftköpfen 03 über einen Führungskanal 08 von einer Vorratsrolle 09 zugeführt wird.The in Fig. 1 shown stapler comprises a rotatably mounted, from a position-controlled motor 11, z. B. a servo motor 11, in particular position-controlled electric motor, driven cylinder 01, in particular stitching cylinder 01, on whose lateral surface two pairs of stapling heads 02; 03 are arranged diametrically. The stitching heads 02; 03 have each designed as a cutting blade lateral edge for shearing a piece of stitching wire 04, which is supplied to the stitching heads 02 via a guide channel 06 from a supply roll 07 and the stitching heads 03 via a guide channel 08 from a supply roll 09.

Zum Fördern des Heftdrahtes 04 von den Vorratsrollen 07; 09 zu den Heftköpfen 02; 03 dient jeweils ein Elektromotor 15; 20, der ein zwischen den Vorratsrollen 07; 09 und den Führungskanälen 06; 08 angeordnetes, den Heftdraht 04 klemmendes Walzenpaar 25 antreibt. In der Darstellung der Fig. 1 ist jeweils ein Elektromotor 15; 20 zum Antreiben jedes Walzenpaares 25 vorgesehen; da die Zufuhrgeschwindigkeit des Heftdrahtes 04 an den Heftköpfen 02 und 03 gleich ist, können auch beide Walzenpaare 25 durch einen gleichen Motor angetrieben sein.For conveying the stitching wire 04 from the supply rollers 07; 09 to the stapling heads 02; 03 each serve an electric motor 15; 20, one between the supply rollers 07; 09 and the guide channels 06; 08 arranged, the stitching wire 04 clamping roller pair 25 drives. In the presentation of the Fig. 1 each is an electric motor 15; 20 provided for driving each pair of rollers 25; Since the feed speed of the stitching wire 04 at the stitching heads 02 and 03 is the same, both pairs of rollers 25 can by a be driven same motor.

Die durch die Heftköpfe 02; 03 abgeschnittenen Drahtstücke werden im Laufe der Drehung des Heftzylinders 01 von den Heftköpfen 02; 03 in an sich bekannter Weise mitgenommen zu Formwalzen, die im Zusammenwirken mit den Heftköpfen 02; 03 die Drahtstücke zu Klammern formen, mit denen schließlich (nicht dargestellte) Produkte geheftet werden, die einen Spalt 14 zwischen dem Heftzylinder 01 und einem Schließplatten 12 tragenden Zylinder 13 senkrecht zur Ebene der Fig. 1 durchlaufen.The through the stitching heads 02; 03 cut wire pieces are in the course of rotation of the stapling cylinder 01 of the stitching heads 02; 03 in a conventional manner taken to form rolls, in cooperation with the stitching heads 02; 03 form the wire pieces into staples with which finally (not shown) products are stapled, the gap 14 between the stapling cylinder 01 and a closing plate 12 bearing cylinder 13 perpendicular to the plane of Fig. 1 run through.

Die Geschwindigkeit des Servomotors 11 ist durch eine Steuerschaltung 16 anhand von zwei Eingabegrößen gesteuert. Eine dieser Eingabegrößen ist die Frequenz f, mit der die zu heftenden Produkte am Heftapparat eintreffen; sie ist variabel und wird bereitgestellt von der Steuerung einer die zu heftenden Produkte liefernden Druckmaschine oder einem die Bewegung der zu heftenden Produkte erfassenden Sensor, der in der Druckmaschine oder auch im Heftapparat selbst angebracht sein kann. Die zweite Größe r, z. B. Verhältnisgröße r bezeichnet das Verhältnis zwischen der Plattenlänge der Druckmaschine oder, was in der Regel gleichbedeutend ist, der Länge der von der Druckmaschine gelieferten Produkte, zum Abstand der Heftköpfe 02; 03 voneinander entlang der von ihnen bei der Drehung des Heftzylinders 01 beschriebenen Kreisbahn. Die Verhältnisgröße r ist bei einem einer Druckmaschine fest zugeordneten Heftapparat in der Regel konstant und kann fest verdrahtet sein. Im Falle r = 1 hält die Steuerschaltung 16 die Drehgeschwindigkeit des Motors 11 auf einem konstanten, der Frequenz f proportionalen Wert; wenn r von 1 abweicht, hält sie die Drehgeschwindigkeit auf diesem Wert nur während des Durchganges der Heftköpfe 02; 03 durch den Spalt 14. Befinden sich die Heftköpfe 02; 03 außerhalb des Spaltes 14, so ist der Betrag der Bahngeschwindigkeit erhöht, wenn r > 1 ist, und er ist verringert, wenn r < 1 ist.The speed of the servomotor 11 is controlled by a control circuit 16 on the basis of two input quantities. One of these input quantities is the frequency f at which the products to be stapled arrive at the stapler; it is variable and is provided by the control of a printing machine delivering the products to be stapled or a sensor detecting the movement of the product to be stapled, which may be mounted in the printing machine or even in the stapler itself. The second size r, z. B. Ratio r denotes the ratio between the plate length of the printing press or, which is usually synonymous, the length of the products supplied by the printing press, the distance of the stitching heads 02; 03 from each other along the circular path described by them during the rotation of the stapling cylinder 01. The ratio r is usually constant in a stapler fixed to a printing machine and may be hard-wired. In the case of r = 1, the control circuit 16 keeps the rotational speed of the motor 11 at a constant value proportional to the frequency f; if r deviates from 1, it keeps the rotational speed at this value only during the passage of stitching heads 02; 03 through the gap 14. Are the stitching heads 02; 03 outside the gap 14, the amount of the web speed is increased when r> 1, and it is decreased when r <1.

Fig. 2 zeigt schematisch den Heftzylinder 01 und den Zylinder 13 des Heftapparates in Verbindung mit einem Falzapparat gemäß einer ersten Ausgestaltung der Erfindung. Der Falzapparat, insbesondere einer Druckmaschine, umfasst in an sich bekannter Weise eine Querschneideinrichtung mit einem Zylinder 17, z. B. Messerzylinder 17 und einem Zylinder 18, z. B. Gegenzylinder 18 zum Zerlegen einer von einer Druckmaschine (nicht dargestellt) kommenden bedruckten Materialbahn 19 in einzelne Produkte, die anschließend von Haltemitteln 21, z. B. Greifern 21 eines Falzmesserzylinders 22 gegriffen und von Falzmessern 23 an einen Falzklappenzylinder 24 übergeben werden.
Der Heftapparat ist zwischen der Querschneideinrichtung und dem Falzmesserzylinder 22 am Weg der Produkte angeordnet. Fig. 2 schematically shows the stapling cylinder 01 and the cylinder 13 of the stapler in conjunction with a folding apparatus according to a first embodiment of the invention. Of the Folder, in particular a printing press, comprises in a conventional manner a cross-cutting device with a cylinder 17, z. B. knife cylinder 17 and a cylinder 18, z. B. counter cylinder 18 for disassembling one of a printing press (not shown) coming printed web 19 into individual products, which are then followed by holding means 21, z. B. grippers 21 of a folding blade 22 and passed from folding blades 23 to a jaw cylinder 24.
The stapler is disposed between the cross cutter and the folding blade cylinder 22 on the path of the products.

Der Falzmesserzylinder 22 hat hier fünf Felder mit jeweils einem Greifer 21 und einem Falzmesser 23 auf seinem Umfang. Die Länge der Felder entspricht der Plattenlänge der Druckmaschine. Der Messerzylinder 17 ist mit zwei diametral angeordneten Messern 26 versehen. Damit diese sich während des Schneidens der Materialbahn 19 mit der gleichen Bahngeschwindigkeit wie diese bewegen können, muss der Durchmesser des Messerzylinders 17 zwei Fünftel desjenigen des Falzmesserzylinders 22 betragen.The folding blade 22 has here five fields, each with a gripper 21 and a folding blade 23 on its circumference. The length of the fields corresponds to the plate length of the printing press. The knife cylinder 17 is provided with two diametrically arranged blades 26. So that they can move during the cutting of the material web 19 at the same web speed as this, the diameter of the knife cylinder 17 must be two-fifths that of the folding blade 22.

Der Durchmesser des Zylinders 13 und der Bahndurchmesser der Heftköpfe 02; 03 des Heftzylinders 01 ist kleiner als zwei Fünftel des Durchmessers des Falzmesserzylinders 22. Um sicherzustellen, dass einerseits die Produkte beim Durchlaufen des Spaltes 14 des Heftapparates ohne zu Reißen geheftet werden und andererseits die Heftköpfe 02; 03 und Schließplatten 12 im Spalt 14 jeweils mit einer zu heftenden Mittellinie der Produkte zusammentreffen, moduliert die Steuerschaltung 16 die Drehgeschwindigkeit des Servomotors 11 derart, dass die Heftköpfe 02; 03 und Schließplatten 12 den Spalt 14 jeweils mit derselben Bahngeschwindigkeit wie die Produkte passieren, die Heftköpfe 02; 03 sich außerhalb des Spaltes 14 jedoch auf wenigstens einem Teil ihres Weges schneller bewegen. Fig. 4 zeigt exemplarisch den Verlauf der Winkelgeschwindigkeit w des Servomotors 11 als Funktion des Drehwinkels φ des Motors 11. Winkelintervalle, in denen ein Heftvorgang stattfindet, sind in der Fig. 4 durch Schraffur hervorgehoben; in diesen Winkelintervallen ist die Winkelgeschwindigkeit w niedrig, außerhalb dieser Intervalle ist sie wenigstens zeitweilig erhöht, wobei das Ausmaß der Erhöhung und/oder die Ausdehnung des Winkelintervalls, in dem die Winkelgeschwindigkeit w erhöht ist, abhängig vom Verhältnis r ist. Da auf dem Umfang des Heftzylinders zwei Heftköpfe 02; 03 verteilt sind, ist die Frequenz der Geschwindigkeitsmodulation das Zweifache der Drehfrequenz bzw. der Frequenz, mit der die Produkte den Heftapparat passieren.The diameter of the cylinder 13 and the web diameter of the stitching heads 02; 03 of the stapling cylinder 01 is smaller than two-fifths of the diameter of the folding blade 22. To ensure that on the one hand the products are stapled while passing through the gap 14 of the stapler without tearing and on the other hand, the stapling heads 02; 03 and closing plates 12 in the gap 14 each coincide with a stitched center line of the products, the control circuit 16 modulates the rotational speed of the servomotor 11 such that the stitching heads 02; 03 and closing plates 12 pass through the gap 14 at the same web speed as the products, the stitching heads 02; 03 but move faster outside of the gap 14 on at least part of their way. Fig. 4 shows by way of example the course of the angular velocity w of the servomotor 11 as a function of the rotation angle φ of the motor 11. Angle intervals in which a stapling operation takes place are shown in FIG Fig. 4 highlighted by hatching; at these angular intervals the angular velocity w is low, outside these intervals at least temporarily increased, wherein the amount of increase and / or the extent of the angular interval in which the angular velocity w is increased, is dependent on the ratio r. As on the circumference of the stapling cylinder two stapling heads 02; 03 are distributed, the frequency of the speed modulation is twice the rotational frequency or the frequency with which the products pass the stapler.

Wie man aus Fig. 2 leicht erkennt, ist ein Vorteil der Variabilität der Winkelgeschwindigkeit w, dass sie es erlaubt, den Heftapparat kompakter zu bauen: Die Zylinder 01; 13 sind zwar zweifeldrig, wie auch die Zylinder 17; 18 der Querschneideinrichtung, sie sind jedoch schlanker als letztere. Ein weiterer wichtiger Vorteil ist, dass, da kein festes Verhältnis zwischen den Durchmessern der Zylinder 01; 12 und denen des Falzapparates eingehalten werden muss, ein gleiches Modell von Heftapparat in Falzapparaten einsetzbar ist, die für unterschiedliche Produktlängen ausgelegt sind. Aufgrund dieser allgemeinen Verwendbarkeit ist es möglich, den Heftapparat in relativ großen Stückzahlen kosteneffizient zu fertigen.How to get out Fig. 2 easily recognizes, is an advantage of variability of angular velocity w, that allows to make the stapler more compact: cylinders 01; 13 are indeed zweeldeldrig, as well as the cylinder 17; 18 of the cross cutter, but they are slimmer than the latter. Another important advantage is that, since no fixed ratio between the diameters of the cylinder 01; 12 and those of the folder must be respected, a same model of stapler can be used in folders, which are designed for different product lengths. Because of this general utility, it is possible to cost-effectively manufacture the stapler in relatively large quantities.

Einer in Fig. 3 gezeigten zweiten Ausgestaltung der Erfindung zufolge dient ein Falzmesserzylinder eines Falzapparates gleichzeitig als Zylinder 13 des Heftapparates. Im Gegensatz zur Ausgestaltung der Fig. 2 muss in der Ausgestaltung der Fig. 3 die Drehgeschwindigkeit des Zylinders 13 an die Geschwindigkeit der vorgelagerten Druckmaschine gekoppelt und im Wesentlichen konstant sein. Hier ist es lediglich die Winkelgeschwindigkeit ω des - genau wie mit Bezug auf Fig. 1 beschrieben aufgebauten - Heftzylinders 01, die mit Hilfe des von der Steuerschaltung 16 gesteuerten Motors 11 wie in Fig. 4 gezeigt variiert wird. Die erzielbaren Vorteile sind dieselben wie bei der Ausgestaltung der Fig. 2.One in Fig. 3 shown second embodiment of the invention, according to a folding blade cylinder of a folder simultaneously serves as a cylinder 13 of the stapler. In contrast to the design of the Fig. 2 must be in the design of the Fig. 3 the rotational speed of the cylinder 13 is coupled to the speed of the upstream printing machine and be substantially constant. Here it is only the angular velocity ω of the - just as with respect to Fig. 1 described stapling cylinder 01, with the aid of the controlled by the control circuit 16 motor 11 as in Fig. 4 is shown varied. The achievable advantages are the same as in the embodiment of Fig. 2 ,

BezugszeichenlisteLIST OF REFERENCE NUMBERS

0101
Zylinder, HeftzylinderCylinder, stapling cylinder
0202
Heftkopfstapling head
0303
Heftkopfstapling head
0404
Heftdrahtstitching wire
0505
--
0606
Führungskanalguide channel
0707
Vorratsrollesupply roll
0808
Führungskanalguide channel
0909
Vorratsrollesupply roll
1010
--
1111
Motor, ServomotorMotor, servomotor
1212
Schließplatteclosing plate
1313
Zylindercylinder
1414
Spaltgap
1515
Elektromotorelectric motor
1616
Steuerschaltungcontrol circuit
1717
Zylinder, MesserzylinderCylinder, knife cylinder
1818
Zylinder, GegenzylinderCylinder, counter cylinder
1919
Materialbahnweb
2020
Elektromotorelectric motor
2121
Haltemittel, GreiferHolding means, gripper
2222
Falzmesserzylinderfolding blade
2323
Falzmesserfolding blade
2424
Falzklappenzylinderjaw cylinder
2525
Walzenpaarroller pair
2626
Messerknife
ff
Frequenzfrequency
rr
Größe, VerhältnisgrößeSize, ratio size
φφ
Drehwinkelangle of rotation
ωω
Winkelgeschwindigkeitangular velocity

Claims (6)

  1. Stitching device comprising a stitching head (02; 03) which can be fed with stitching wire (04), the stitching head (02; 03) being driveable so as to execute a periodic movement in the coarse of which the stitching head (02; 03) meets a closing plate (12) for stitching products, a control device (16) being arranged for modulating the circumferential path speed component of the stitching head (02; 03) with a modulation frequency, the stitching head (02; 03) being supported by a stitching cylinder (01) rotationally driven by a position-controlled motor (11), the closing plate (12) being mounted on the second rotatable cylinder (13), the control device (16) modulating the circumferential path speed component of the switching head (02; 03) so that the circumferential part speeds of the stitching head (02; 03) and of the closing plate (12) correspond during the stitching and at least from time to time do not correspond outside of stitching.
  2. Stitching device according to Claim 1, characterized in that the control device (16) modulates the rotational speed of the motor (11) so that the circumferential path speed of the stitching head (02; 03) reaches an extreme value during the stitching.
  3. Stitching device according to Claim 1, characterized in that the second cylinder (13) is a folder blade cylinder of a folder.
  4. Stitching device according to Claim 1, characterized in that the control device (16) also modulates the rotational speed of the second cylinder (13).
  5. Stitching device according to Claim 1, characterized in that the modulation frequency is a harmonic of the frequency of the periodic movement.
  6. Folder comprising a stitching device according to any of the preceding claims, characterized in that the control device (16) is setup to make the circumferential part speed of the stitching head (02; 03) during the stitching equal to the transport speed of products to be folded in the folder and, at least from time to time, different from the transport speed outside of stitching.
EP08159630A 2007-07-19 2008-07-03 Stapler Not-in-force EP2017088B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007033586A DE102007033586B4 (en) 2007-07-19 2007-07-19 stitcher

Publications (2)

Publication Number Publication Date
EP2017088A1 EP2017088A1 (en) 2009-01-21
EP2017088B1 true EP2017088B1 (en) 2009-09-30

Family

ID=39731724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08159630A Not-in-force EP2017088B1 (en) 2007-07-19 2008-07-03 Stapler

Country Status (3)

Country Link
EP (1) EP2017088B1 (en)
AT (1) ATE444182T1 (en)
DE (2) DE102007033586B4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012202458B4 (en) 2012-02-17 2014-06-12 Koenig & Bauer Aktiengesellschaft stapler

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1166841B (en) * 1979-05-18 1987-05-06 Corali Bruno PERFECTED SEWING MACHINE
DE19518652C2 (en) * 1995-05-20 1999-08-12 Koenig & Bauer Ag Device for stapling signatures
EP1588813B1 (en) 2004-04-23 2006-08-30 Koenig & Bauer Aktiengesellschaft Stitching device with feeding apparatus for at least one continuous wire

Also Published As

Publication number Publication date
DE102007033586B4 (en) 2009-10-08
DE102007033586A1 (en) 2009-01-29
EP2017088A1 (en) 2009-01-21
ATE444182T1 (en) 2009-10-15
DE502008000125D1 (en) 2009-11-12

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