EP0444409B1 - Bookbinding machine for rounding the backs of book blocks - Google Patents

Bookbinding machine for rounding the backs of book blocks Download PDF

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Publication number
EP0444409B1
EP0444409B1 EP91100557A EP91100557A EP0444409B1 EP 0444409 B1 EP0444409 B1 EP 0444409B1 EP 91100557 A EP91100557 A EP 91100557A EP 91100557 A EP91100557 A EP 91100557A EP 0444409 B1 EP0444409 B1 EP 0444409B1
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EP
European Patent Office
Prior art keywords
rounding
book block
bookbinding machine
book
rollers
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
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EP91100557A
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German (de)
French (fr)
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EP0444409A1 (en
Inventor
Horst Rathert
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Kolbus GmbH and Co KG
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Kolbus GmbH and Co KG
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Publication of EP0444409A1 publication Critical patent/EP0444409A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C5/00—Preparing the edges or backs of leaves or signatures for binding
    • B42C5/02—Preparing the edges or backs of leaves or signatures for binding by rounding or backing

Definitions

  • the invention relates to a bookbinding machine for back rounding of book blocks with a conveyor device that clamps the book block and with a back round device that acts on the book block after the book block has been released by the conveyor device, the conveyor device consisting of book block clamps that can be moved continuously in a closed orbit and the back round device synchronously with the book block clamps can be driven along a defined section of the orbit.
  • Such a bookbinding machine is known from FR-A-1439825.
  • the back-round device is formed by a counterpressure plate concave in the transverse direction and by a stamp above the counterpressure plate which is convexly shaped in the transverse direction in accordance with the front section of the book block.
  • a bookbinding machine can be found in US-A-1959656 with a round device operating according to the roll round principle and with a device for shaping the book block spines.
  • the book blocks are placed between two round rollers on a support under contact with a stop and are grasped by the round rollers. These act on the two sides of the book block to carry out the rounding process and at the same time convey the book block downwards after the edition has been removed.
  • the round rollers are automatically moved in the longitudinal direction on their bearing shafts and, after the book block has been picked up, are released again by the round rollers by clamping the pressing device in order to return to their starting position.
  • the object of the invention is seen in creating a bookbinding machine for the back rounding of book blocks of the generic type, with which a high-quality back rounding can be achieved at high working speed.
  • the object is achieved by the characterizing features of claim 1.
  • the bookbinding machine according to the invention offers the technical advantage of a substantial increase in working speed while achieving optimal round results.
  • the round rollers can be moved vertically in the recesses of the clamping jaws and the vertical movement is superimposed on the rotary movement of the round rollers in such a way that the vertical movement of the book block which is produced as a result of the rotary movement is compensated for, the outer sheets or printed sheets preferably being at a constant level being held.
  • the holding of the book block in the clamp of the book block transport system in a defined position caused by the compensation movement is important for the subsequent work process.
  • a further increase in the working speed can be achieved in that at least one further back rounding device is arranged in the bookbinding machine for the simultaneous back rounding of several book blocks.
  • the device for back rounding of book blocks 1 is, according to the invention, assigned to a book block transport system of a book binding machine with a multiplicity of book block clamps 2, which are located at the same mutual distance from one another, each with a pair of clamping jaws 3 and 4, which can be set at a variable distance from one another and which exert a contact pressure on the pages to apply a holding force exercise a book block 1 with your back facing down.
  • the inner clamping jaw 4 of the book block clamp 2 is fixed in place on a support frame 6 running in guides 5 of a machine frame, which is connected to a transport chain by means of a drive, and the outer clamping jaw 3 for the inner clamping jaw 4 via actuating means (not shown) in the sense of closing and opening for receiving or Release of a book block 1 can be moved in parallel.
  • the book block clamp 2 with the book blocks 1 held clamped are continuously driven along a closed orbit by the transport chain guided around deflection chain wheels.
  • the device for back rounding of book blocks is located essentially below the book block transport system and in a straight line section and is synchronized by a drive arrangement, the detailed description of which is provided elsewhere, with the continuously running book block clamps 2 along the movement path over a defined distance then moved back to the starting position, reversing their direction of movement.
  • Printed sheets by simultaneously rolling corrugated round rollers over a defined angle of rotation and under pressure, the sheets or printed sheets being increasingly advanced as the book block passes through the round rollers towards the center of the book block, thus giving the book block its desired rounded back shape and front cut shape.
  • recesses 3a, 4a are provided in the inner and outer clamping jaws 4, 3 according to the invention, through which the round rollers 7, 8 during their synchronous operation with the book block clamp 2 Book block pages are movable back and forth.
  • This transverse movement of the two round rollers must inevitably be timed to the opening and closing movement of the clamping jaws 3, 4 in such a way that the book block 1 is only released by the clamping jaws 3, 4 after being taken over by the round rollers 7, 8, whereupon immediately the rounding process begins by the rotating round rollers 7, 8 rolling on the sides of the book block 1.
  • the two round rollers 7, 8 are simultaneously lifted from their lower position into an upper position shown in dash-dotted lines in the recesses 3a, 4a of the clamping jaws 3, 4 with their rotational movement in the direction of the arrow, as a result of which the round rollers roll as a result 7, 8 on the sides of the book block 1 occurring downward vertical movement of the book block 1 is compensated and thus the fold edge on the edge of the book block in the book block clamp 2 is kept at a constant level.
  • the device for back-rounding book blocks 1, which is driven back and forth along the movement path of the book block clamps 2, has a frame 10 which is composed of a base plate 10a and a support plate 10b, which is movable on vertical guides 17 of the base plate 10a in the vertical plane.
  • Swivel levers 14, 15, in which the two round rollers 7, 8 are each freely rotatably supported at the ends, are received by the height-adjustable support plate 10b on both sides of the book block movement plane in a diametrical arrangement.
  • the vertical movement of the two round rollers 7, 8 in the recesses 3a, 4a of the clamping jaws 3, 4 and the simultaneous rotary movement of the two round rollers 7, 8 for executing the rounding process take place in time with the transverse movement towards the book block pages and with the continuously running one Book block clamp 2 is actuated from a common drive source, not shown, starting from a drive lever 20, through which parallel lever arrangements 21, again lying on both sides of the book block movement plane and connected to one another, are actuated.
  • the parallel lever arrangements each engage at two points on the support plate 10b which are at a distance from one another in order to move it, guided on vertical guides 17, between a lower and an upper end position.
  • the two round rollers 7, 8 perform a defined rotary movement to complete the rounding process on the book block, in that stationary racks 22 and 22a set the pinion 23 on the bearing shafts 13 in rotary motion.
  • the transmission of the rotary movement to the round rollers 7, 8 takes place from the toothed pinion 23 via a toothed belt 29 between a toothed wheel 24 on the bearing shaft 13 and a toothed wheel 25 on an intermediate shaft 26 mounted in the pivoting lever 14, 15.
  • a toothed wheel 27 is located thereon , which is in engagement with a gear 28 on the axis of the round rollers 7, 8.
  • the device for back-rounding book blocks 1 with the continuously running book block clamps 2 of the book block transport system is moved back and forth synchronously along the movement path over a defined distance.
  • the base plate 10a carries vertical and horizontal rollers 35 which run on tracks 34 of the machine frame.
  • a drive lever 30 engages, which is articulated on a chain 33 running around deflection sprockets 31 and 32 and moves the base plate 10a back and forth when the chain rotates.
  • more than one device for rounding the back can be arranged in a row in the bookbinding machine in order to simultaneously round the back on several book blocks.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Discharge By Other Means (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Description

Die Erfindung betrifft eine Buchbindemaschine zum Rückenrunden von Buchblocks mit einer den Buchblock einspannenden Fördereinrichtung und mit einer Rückenrundeeinrichtung, die nach Freigabe des Buchblocks durch die Fördereinrichtung auf den Buchblock einwirkt, wobei die Fördereinrichtung aus in einer geschlossenen Umlaufbahn kontinuierlich bewegbaren Buchblockklammern besteht und die Rückenrundeeinrichtung synchron mit den Buchblockklammern längs eines definierten Streckenabschnitts der Umlaufbahn antreibbar ist.The invention relates to a bookbinding machine for back rounding of book blocks with a conveyor device that clamps the book block and with a back round device that acts on the book block after the book block has been released by the conveyor device, the conveyor device consisting of book block clamps that can be moved continuously in a closed orbit and the back round device synchronously with the book block clamps can be driven along a defined section of the orbit.

Aus der FR-A-1439825 ist eine derartige Buchbindemaschine bekannt. Die Rückenrundeeinrichtung wird dabei von einer in Querrichtung konkaven Gegendruckplatte sowie aus einem in Querrichtung konvexen dem Vorderschnitt des Buchblocks entsprechend geformten Stempel oberhalb der Gegendruckplatte gebildet.Such a bookbinding machine is known from FR-A-1439825. The back-round device is formed by a counterpressure plate concave in the transverse direction and by a stamp above the counterpressure plate which is convexly shaped in the transverse direction in accordance with the front section of the book block.

Aus der US-A-1959656 ist eine Buchbindemaschine zu entnehmen mit einer nach dem Walzenrundeprinzip arbeitenden Rundeeinrichtung und mit einer Einrichtung zum Formen der Buchblockrücken. Dabei werden die Buchblocks zwischen zwei Rundewalzen auf eine Auflage unter Anlage an einem Anschlag verbracht und von den Rundewalzen erfaßt. Diese wirken auf die beiden Seiten des Buchblocks zum Ausführen des Rundevorgangs ein und fördern gleichzeitig den Buchblock abwärts nachdem zuvor die Auflage entfernt wurde.A bookbinding machine can be found in US-A-1959656 with a round device operating according to the roll round principle and with a device for shaping the book block spines. The book blocks are placed between two round rollers on a support under contact with a stop and are grasped by the round rollers. These act on the two sides of the book block to carry out the rounding process and at the same time convey the book block downwards after the edition has been removed.

Zusammen mit der Drehbewegung werden die Rundewalzen automatisch in Längsrichtung auf ihren Lagerwellen verfahren und nach Aufnahme des Buchblocks durch Klemmbacken der Abpreßeinrichtung von den Rundewalzen wieder freigegeben, um in ihre Ausgangsposition zurückzukehren.Together with the rotary movement, the round rollers are automatically moved in the longitudinal direction on their bearing shafts and, after the book block has been picked up, are released again by the round rollers by clamping the pressing device in order to return to their starting position.

Die Aufgabe der Erfindung wird darin gesehen, eine Buchbindemaschine zum Rückenrunden von Buchblocks der gattungsgemäßen Art zu schaffen, mit der sich bei hoher Arbeitsgeschwindigkeit eine qualitativ hochwertige Rückenrundung erzielen läßt. Gelöst wird die Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1.The object of the invention is seen in creating a bookbinding machine for the back rounding of book blocks of the generic type, with which a high-quality back rounding can be achieved at high working speed. The object is achieved by the characterizing features of claim 1.

Mit der erfindungsgemäßen Buchbindemaschine wird erstmals ein Weg aufgezeigt, das Rückenrunden von Buchblocks durch das Walzenrundeprinzip in einem Buchblocktransportsystem mit in einer geschlossenen Umlaufbahn kontinuierlich bewegbaren Buchblockklammern durchzuführen. Bekanntlich wurden solche Buchblocktransportsysteme bisher ausschließlich für Buchbindemaschinen im Höchstleistungsbereich eingesetzt.With the book binding machine according to the invention, a way is shown for the first time to carry out the back rounding of book blocks by the roller round principle in a book block transport system with book block clamps which can be moved continuously in a closed orbit. As is known, such book block transport systems have hitherto been used exclusively for high-performance bookbinding machines.

Die Buchbindemaschine nach der Erfindung bietet den technischen Vorteil einer wesentlichen Steigerung der Arbeitsgeschwindigkeit bei Erzielung optimaler Rundeergebnisse.The bookbinding machine according to the invention offers the technical advantage of a substantial increase in working speed while achieving optimal round results.

Nach einem weiteren Merkmal der Erfindung sind die Rundewalzen in den Ausnehmungen der Klemmbacken vertikal verfahrbar und die Vertikalbewegung ist der Drehbewegung der Rundewalzen überlagert derart, daß die infolge der Drehbewegung erzeugte Vertikalbewegung des Buchblocks kompensiert wird, wobei vorzugsweise dessen außenliegenden Blätter bzw. Druckbogen auf konstantem Niveau gehalten werden. Das durch die Kompensationsbewegung bewirkte Halten des Buchblocks in der Klammer des Buchblocktransportsystems in einer definierten Position, ist für den nachfolgenden Arbeitsprozess von Bedeutung.According to a further feature of the invention, the round rollers can be moved vertically in the recesses of the clamping jaws and the vertical movement is superimposed on the rotary movement of the round rollers in such a way that the vertical movement of the book block which is produced as a result of the rotary movement is compensated for, the outer sheets or printed sheets preferably being at a constant level being held. The holding of the book block in the clamp of the book block transport system in a defined position caused by the compensation movement is important for the subsequent work process.

Eine weitere Steigerung der Arbeitsgeschwindigkeit läßt sich gemäß einem weiteren Merkmal der Erfindung dadurch erzielen, daß in der Buchbindemaschine wenigstens eine weitere Rückenrundeeinrichtung zum gleichzeitigen Rückenrunden von mehreren Buchblocks angeordnet ist.According to a further feature of the invention, a further increase in the working speed can be achieved in that at least one further back rounding device is arranged in the bookbinding machine for the simultaneous back rounding of several book blocks.

Andere vorteilhafte Merkmale ergeben sich aus den verbleibenden Unteransprüchen.Other advantageous features emerge from the remaining subclaims.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der schematischen Zeichnungen näher erläutert. Dabei zeigen:

Fig. 1
eine Seitenansicht der Einrichtung zum Rückenrunden von Buchblocks in einer Buchbindemaschine;
Fig. 2
eine Schnittansicht durch die Antriebsanordnung gemäß der Schnittlinie C-D in Fig. 4, vergrößert dargestellt;
Fig. 3
die Einrichtung zum Rückenrunden in einer Seitenansicht;
Fig. 4
die Einrichtung zum Rückenrunden in einer Seitenansicht gemäß der Schnittlinie A-B in Fig. 1.
An embodiment of the invention is explained below with reference to the schematic drawings. Show:
Fig. 1
a side view of the device for back rounding of book blocks in a book binding machine;
Fig. 2
a sectional view through the drive assembly according to the section line CD in Fig. 4, shown enlarged;
Fig. 3
the device for back rounding in a side view;
Fig. 4
the device for back rounding in a side view along the section line AB in Fig. 1st

Die Einrichtung zum Rückenrunden von Buchblocks 1 ist erfindungsgemäß einem Buchblocktransporttsystem einer Buchbindemaschine zugeordnet mit einer Vielzahl von in gleichen gegenseitigen Abständen zueinander liegenden Buchblockklammern 2, mit je einem Paar mit veränderbarem Abstand gegenüberliegenden Klemmbacken 3 und 4, die zum Aufbringen einer Haltekraft einen Anpreßdruck auf die Seiten eines mit dem Rücken nach unten weisenden Buchblock 1 ausüben. Dabei ist die innere Klemmbacke 4 der Buchblockklammer 2 ortsfest an einem in Führungen 5 eines Maschinengestells laufenden, mit einer Transportkette antriebsmäßig verbundenen Tragrahmen 6 befestigt und die äußere Klemmbacke 3 zur inneren Klemmbacke 4 über nicht dargestellte Betätigungsmittel im Sinne eines Schließens und Öffnens zur Aufnahme bzw. Freigabe eines Buchblocks 1 parallel verschiebbar. Die Buchblockklammer 2 mit den eingespannt gehaltenen Buchblocks 1 sind längs einer geschlossenen Umlaufbahn von der um Umlenkkettenräder geführten Transportkette kontinuierlich angetrieben.The device for back rounding of book blocks 1 is, according to the invention, assigned to a book block transport system of a book binding machine with a multiplicity of book block clamps 2, which are located at the same mutual distance from one another, each with a pair of clamping jaws 3 and 4, which can be set at a variable distance from one another and which exert a contact pressure on the pages to apply a holding force exercise a book block 1 with your back facing down. The inner clamping jaw 4 of the book block clamp 2 is fixed in place on a support frame 6 running in guides 5 of a machine frame, which is connected to a transport chain by means of a drive, and the outer clamping jaw 3 for the inner clamping jaw 4 via actuating means (not shown) in the sense of closing and opening for receiving or Release of a book block 1 can be moved in parallel. The book block clamp 2 with the book blocks 1 held clamped are continuously driven along a closed orbit by the transport chain guided around deflection chain wheels.

Die Einrichtung zum Rückenrunden von Buchblocks befindet sich im wesentlichen unterhalb des Buchblocktransportsystems und in einem geradlinig verlaufenden Streckenabschnitt und wird von einer Antriebsanordnung, deren nähere Beschreibung an anderer Stelle erfolgt, mit den kontinuierlich laufenden Buchblockklammern 2 längs der Bewegungsbahn über eine definierte Wegstrecke synchron vor- und danach unter Umkehrung ihrer Bewegungsrichtung in die Ausgangsposition zurückbewegt.The device for back rounding of book blocks is located essentially below the book block transport system and in a straight line section and is synchronized by a drive arrangement, the detailed description of which is provided elsewhere, with the continuously running book block clamps 2 along the movement path over a defined distance then moved back to the starting position, reversing their direction of movement.

Beim Rückenrunden von Buchblocks nach dem Walzenrundeverfahren erfolgt bekanntlich eine fließende Relativverschiebung der einzelnen Blätter bzw.As is well known, when spinning round book blocks using the roll rounding method, there is a flowing relative displacement of the individual sheets or

Druckbogen durch gleichzeitiges Abwälzen geriffelter Rundewalzen über einen definierten Drehwinkel sowie unter Druckanwendung, wobei die Blätter bzw. Druckbogen beim Durch lauf des Buchblocks durch die Rundewalzen zur Buchblockmitte hin zunehmend vorgeschoben werden und somit der Buchblock seine gewünschte gerundete Rückenform und Vorderschnittform erhält.Printed sheets by simultaneously rolling corrugated round rollers over a defined angle of rotation and under pressure, the sheets or printed sheets being increasingly advanced as the book block passes through the round rollers towards the center of the book block, thus giving the book block its desired rounded back shape and front cut shape.

Um das Rückenrundeverfahren an einem Buchblock 1 innerhalb der Buchblockklammer 2 durchführen zu können, sind gemäß der Erfindung Ausnehmungen 3a, 4a in der inneren und äußeren Klemmbacke 4, 3 vorgesehen, durch die die Rundewalzen 7, 8 während ihres Synchronlaufs mit der Buchblockklammer 2 zu den Buchblockseiten hin- und zurückbewegbar sind. Diese in Querrichtung erfolgende Bewegung der beiden Rundewalzen muß zwangsläufig zeitlich derart auf die Öffnungs- und Schließbewegung der Klemmbacken 3, 4 abgestimmt sein, daß der Buchblock 1 erst nach Übernahme durch die Rundewalzen 7, 8 von den Klemmbacken 3, 4 freigegeben wird, worauf unmittelbar der Rundevorgang einsetzt, indem sich die drehangetriebenen Rundewalzen 7, 8 an den Seiten des Buchblocks 1 abwälzen.In order to be able to carry out the back rounding process on a book block 1 within the book block clamp 2, recesses 3a, 4a are provided in the inner and outer clamping jaws 4, 3 according to the invention, through which the round rollers 7, 8 during their synchronous operation with the book block clamp 2 Book block pages are movable back and forth. This transverse movement of the two round rollers must inevitably be timed to the opening and closing movement of the clamping jaws 3, 4 in such a way that the book block 1 is only released by the clamping jaws 3, 4 after being taken over by the round rollers 7, 8, whereupon immediately the rounding process begins by the rotating round rollers 7, 8 rolling on the sides of the book block 1.

Wie besonders deutlich aus Figur 2 ersichtlich, werden die beiden Rundewalzen 7, 8 gleichzeitig mit ihrer Drehbewegung gemäß Pfeilrichtung in den Ausnehmungen 3a, 4a der Klemmbacken 3, 4 aus einer unteren Position in eine obere strichpunktiert dargestellte Position angehoben, wodurch die infolge Abwälzens der Rundewalzen 7, 8 an den Seiten des Buchblocks 1 auftretende nach unten gerichtete Vertikalbewegung des Buchblocks 1 kompensiert und somit die Falzkante am Rande des Buchblocks in der Buchblockklammer 2 auf konstantem Niveau gehalten wird.As can be seen particularly clearly from FIG. 2, the two round rollers 7, 8 are simultaneously lifted from their lower position into an upper position shown in dash-dotted lines in the recesses 3a, 4a of the clamping jaws 3, 4 with their rotational movement in the direction of the arrow, as a result of which the round rollers roll as a result 7, 8 on the sides of the book block 1 occurring downward vertical movement of the book block 1 is compensated and thus the fold edge on the edge of the book block in the book block clamp 2 is kept at a constant level.

Nach ausgeführtem Rundevorgang und Abschwenken kehren die Rundewalzen 7, 8 in ihre untere Ausgangsposition zurück.After the rounding process and swiveling, the rounding rollers 7, 8 return to their lower starting position.

Die längs der Bewegungsbahn der Buchblockklammern 2 vor- und zurück laufend angetriebene Einrichtung zum Rückenrunden von Buchblocks 1 weist einen Rahmen 10 auf, der sich aus einer Grundplatte 10a und einer Tragplatte 10b zusammensetzt, die auf Vertikalführungen 17 der Grundplatte 10a in vertikaler Ebene verfahrbar ist.The device for back-rounding book blocks 1, which is driven back and forth along the movement path of the book block clamps 2, has a frame 10 which is composed of a base plate 10a and a support plate 10b, which is movable on vertical guides 17 of the base plate 10a in the vertical plane.

Von der höhenbeweglichen Tragplatte 10b werden beidseitig der Buchblockbewegungsebene in diametraler Anordnung um einen mittleren Drehpunkt schwenkbar gelagerte Schwenkhebel 14, 15 aufgenommen, in denen die beiden Rundewalzen 7, 8 jeweils endseitig frei drehbar gelagert sind. Hierzu befinden sich auf der Tragplatte 10b Lagerböcke 11, 12 zur Aufnahme von Lagerwellen 13, die wiederum die Schwenkhebel 14, 15 tragen.Swivel levers 14, 15, in which the two round rollers 7, 8 are each freely rotatably supported at the ends, are received by the height-adjustable support plate 10b on both sides of the book block movement plane in a diametrical arrangement. For this purpose, there are bearing blocks 11, 12 on the support plate 10b for receiving bearing shafts 13, which in turn carry the pivot levers 14, 15.

Die Schwenkbewegung der Rundewalzen 7, 8, ausgeführt über die Schwenkhebel 14, 15 zu den Buchblockseiten hin und zurück, geht von einem Arbeitszylinder 16 aus, an dessen Zylinder 16a der unter der inneren Klemmbacke 4 liegende Schwenkhebel 15 und an dessen Kolbenstange 16b der unter der äußeren Klemmbacke 3 liegende Schwenkhebel 14 angreift. Durch Beaufschlagen des Arbeitszylinders 16 werden die beiden Schwenkhebel 14, 15 mit den Rundewalzen 7, 8 durch Ausfahren der Kolbenstange 16b um ihre mittigen Drehpunkte zu den Buchblockseiten hin verschwenkt. Das Abschwenken erfolgt durch Zurückziehen der Kolbenstange 16 bis hin zur Anlage der Schwenkhebel 14, 15 an Anschläge 18.The pivoting movement of the round rollers 7, 8, carried out via the pivoting levers 14, 15 back and forth to the book block pages, starts from a working cylinder 16, on the cylinder 16a of which the pivoting lever 15 lying under the inner clamping jaw 4 and on the piston rod 16b of which is under the outer jaw 3 attacks lying lever 14. By acting on the working cylinder 16, the two pivot levers 14, 15 are pivoted with the round rollers 7, 8 by extending the piston rod 16b about their central pivot points toward the pages of the book block. The pivoting takes place by pulling back the piston rod 16 until the pivoting levers 14, 15 rest against stops 18.

Die Vertikalbewegung der beiden Rundewalzen 7, 8 in den Ausnehmungen 3a, 4a der Klemmbacken 3, 4 und die gleichzeitig ablaufende Drehbewegung der beiden Rundewalzen 7, 8 zum Ausführen des Rundevorgangs erfolgt in zeitlicher Abstimmung mit der Querbewegung zu den Buchblockseiten hin und mit der kontinuierlich laufenden Buchblockklammer 2 von einer gemeinsamen nicht weiter dargestellten Antriebsquelle ausgehend auf einen Antriebshebel 20, durch den Parallelhebelanordnungen 21, wiederum auf beiden Seiten der Buchblockbewegungsebene liegend sowie untereinander verbunden, betätigt werden. Die Parallelhebelanordnungen greifen jeweils an zwei voneinander entfernt liegenden Punkten der Tragplatte 10b an, um diese, geführt auf Vertikalführungen 17, zwischen einer unteren und oberen Endstellung zu verfahren.The vertical movement of the two round rollers 7, 8 in the recesses 3a, 4a of the clamping jaws 3, 4 and the simultaneous rotary movement of the two round rollers 7, 8 for executing the rounding process take place in time with the transverse movement towards the book block pages and with the continuously running one Book block clamp 2 is actuated from a common drive source, not shown, starting from a drive lever 20, through which parallel lever arrangements 21, again lying on both sides of the book block movement plane and connected to one another, are actuated. The parallel lever arrangements each engage at two points on the support plate 10b which are at a distance from one another in order to move it, guided on vertical guides 17, between a lower and an upper end position.

Mit der Vertikalbewegung führen die beiden Rundewalzen 7, 8 eine definierte Drehbewegung zum Vollziehen des Rundevorgangs am Buchblock aus, indem ortsfeste Zahnstangen 22 und 22a Zahnritzel 23 auf den Lagerwellen 13 in Drehbewegung versetzen. Von dem Zahnritzel 23 aus erfolgt die Übertragung der Drehbewegung auf die Rundewalzen 7, 8 über einen Zahnriemen 29 zwischen einem Zahnrad 24 auf der Lagerwelle 13 und einem Zahnrad 25 auf einer im Schwenkhebel 14, 15 gelagerten Zwischenwelle 26. Auf dieser befindet sich ein Zahnrad 27, das mit einem Zahnrad 28 auf der Achse der Rundewalzen 7, 8 in Eingriff steht.With the vertical movement, the two round rollers 7, 8 perform a defined rotary movement to complete the rounding process on the book block, in that stationary racks 22 and 22a set the pinion 23 on the bearing shafts 13 in rotary motion. The transmission of the rotary movement to the round rollers 7, 8 takes place from the toothed pinion 23 via a toothed belt 29 between a toothed wheel 24 on the bearing shaft 13 and a toothed wheel 25 on an intermediate shaft 26 mounted in the pivoting lever 14, 15. A toothed wheel 27 is located thereon , which is in engagement with a gear 28 on the axis of the round rollers 7, 8.

Während die Zahnstange 22 zum Erzeugen des Drehantriebs der Rundewalze 8 mit der Grundplatte 10a verschraubt ist, läßt sich die Position der Zahnstange 22a, von der aus der Drehantrieb der Rundewalze 7 ausgeht, auf der Grundplatte 10a in Querrichtung über eine Schiebeführung 19 verändern. Diese Verstellung ist vorgesehen für unterschiedliche Buchblockdicken und erfolgt zusammen mit der Verschiebung des die Rundewalze 7 tragenden Schwenkhebels 14, wozu die Lagerböcke 11, wie aus Figur 1 ersichtlich, in einer Führungsbahn 11a auf der Tragplatte 10b verschiebbar sind bei gleichzeitiger Veränderung des Hubes der Kolbenstange 16b zum Betätigen der beiden Schwenkhebel 14, 15.While the rack 22 for producing the rotary drive of the round roller 8 is screwed to the base plate 10a, the position of the rack 22a, from which the rotary drive of the round roller 7 starts, can be changed on the base plate 10a in the transverse direction via a sliding guide 19. This adjustment is provided for different book block thicknesses and takes place together with the displacement of the pivot lever 14 carrying the round roller 7, for which purpose the bearing blocks 11, as can be seen in FIG. 1, can be displaced in a guideway 11a on the support plate 10b while simultaneously changing the stroke of the piston rod 16b to operate the two swivel levers 14, 15.

Wie bereits eingangs erwähnt, wird die Einrichtung zum Rückenrunden von Buchblocks 1 mit den kontinuierlich laufenden Buchblockklammern 2 des Buchblocktransportsystems längs der Bewegungsbahn über eine definierte Wegstrecke synchron vor- und zurückbewegt. Zur Durchführung dieser Bewegung trägt die Grundplatte 10a vertikale und horizontale Laufrollen 35, die auf Bahnen 34 des Maschinengestells laufen. An der Grundplatte 10a greift ein Antriebshebel 30 an, der an einer um Umlenkkettenräder 31 und 32 laufenden Kette 33 angelenkt ist und beim Umlauf der Kette die Grundplatte 10a vor- und zurückbewegt.As already mentioned at the beginning, the device for back-rounding book blocks 1 with the continuously running book block clamps 2 of the book block transport system is moved back and forth synchronously along the movement path over a defined distance. To carry out this movement, the base plate 10a carries vertical and horizontal rollers 35 which run on tracks 34 of the machine frame. On the base plate 10a, a drive lever 30 engages, which is articulated on a chain 33 running around deflection sprockets 31 and 32 and moves the base plate 10a back and forth when the chain rotates.

Es versteht sich, daß die Erfindung nicht nur auf das dargestellte Ausführungsbeispiel beschränkt ist, sondern im Rahmen der Ansprüche Abänderungen zuläßt. So ist grundsätzlich denkbar, die Antriebsmittel für die Drehbewegung der beiden Rundewalzen 7, 8 und für ihre Vertikalbewegung durch andere Mittel zu ersetzen.It is understood that the invention is not limited only to the illustrated embodiment, but changes within the scope of the claims allows. It is basically conceivable to replace the drive means for the rotary movement of the two round rollers 7, 8 and for their vertical movement by other means.

Im Hinblick auf eine weitere Leistungserhöhung können in der Buchbindemaschine mehr als eine Einrichtung zum Rückenrunden hintereinander angeordnet sein, um das Rückenrunden gleichzeitig an mehreren Buchblocks durchzuführen.With a view to a further increase in output, more than one device for rounding the back can be arranged in a row in the bookbinding machine in order to simultaneously round the back on several book blocks.

Claims (9)

  1. Bookbinding machine for rounding the spines of book blocks, this machine having a transport system which clamps the book block, and a spine-rounding apparatus which acts on the book block once the transport system has released it, said transport system consisting of book block clamps (2) which can be caused to move continuously on an endless path, and said spine-rounding apparatus being propellable along a defined segment of said endless path in synchronism with said book block clamps (2), characterized in that the spine-rounding apparatus includes rounding rollers (7, 8) which act on both sides of the book block (1) by executing a defined rotational movement and by exerting pressure, and which, in order to perform the rounding operation, can be moved backwards and forwards relative to the sides of the book block (1) through apertures (3a, 4a) in clamping jaws (3, 4) associated with the book block clamps (2).
  2. The bookbinding machine as claimed in claim 1, wherein the rounding rollers (7, 8) can be moved vertically inside the apertures (3a, 4a) in the clamping jaws (3, 4) and the vertical movement is superimposed on the rotational movement of the rounding rollers (7, 8) in a manner such as to compensate the vertical movement of the book block (1) that is generated as a result of the rotational movement, the outer leaves or printed sheets of the block preferably being kept at a constant level.
  3. The bookbinding machine as claimed in claim 2, wherein the rotational movement of the rounding rollers (7, 8) is derived from the vertical movement.
  4. The bookbinding machine as claimed in any one of claims 1 to 3, wherein the rounding rollers (7, 8) are mounted in swinging levers (14, 15) which are installed on a vertically movable supporting plate (10b) and can be moved backwards and forwards relative to the sides of the book block (1) through the agency of actuating means (16).
  5. The bookbinding machine as claimed in any one of claims 1 to 4, wherein the rounding rollers (7, 8) can be rotationally driven by means of drive arrangements (13, 23-29) associated with the swinging levers (14, 15), by virtue of the fact that the vertical movement of the swinging levers (14, 15) causes a gearwheel (23) associated with the drive arrangement to roll on a stationary rack (22, 22a).
  6. The bookbinding machine as claimed in any one of claims 1 to 5, wherein the supporting plate (10b) is carried by a baseplate (10a) via vertical guides (17) and can be moved between lower and upper travel limits through the agency of actuating means (20, 21).
  7. The bookbinding machine as claimed in any one of claims 1 to 6, wherein a propulsion arrangement (30-33) acts on the baseplate (10a), moving it backwards and forwards along the movement path of the book block clamps (2), together with the supporting plate (10b) and the swinging levers (14, 15) carrying the rounding rollers (7, 8).
  8. The bookbinding machine as claimed in any one of claims 1 to 7, wherein the distance between the rounding rollers (7, 8) can be adjusted by repositioning the swinging levers (14) carrying the outer rounding roller (7), relative to the swinging levers (15) located opposite.
  9. The bookbinding machine as claimed in any one of claims 1 to 8, wherein at least one additional back-rounding apparatus is installed, so as to perform back-rounding operations on several book blocks (1) simultaneously.
EP91100557A 1990-02-26 1991-01-18 Bookbinding machine for rounding the backs of book blocks Expired - Lifetime EP0444409B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005948A DE4005948A1 (en) 1990-02-26 1990-02-26 BOOKBINDING MACHINE FOR ROUNDING BOOK BLOCKS
DE4005948 1990-02-26

Publications (2)

Publication Number Publication Date
EP0444409A1 EP0444409A1 (en) 1991-09-04
EP0444409B1 true EP0444409B1 (en) 1995-03-29

Family

ID=6400950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100557A Expired - Lifetime EP0444409B1 (en) 1990-02-26 1991-01-18 Bookbinding machine for rounding the backs of book blocks

Country Status (4)

Country Link
US (1) US5114293A (en)
EP (1) EP0444409B1 (en)
JP (1) JPH04216099A (en)
DE (2) DE4005948A1 (en)

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DE19859330A1 (en) * 1998-12-22 2000-07-06 Kolbus Gmbh & Co Kg Book block spine rounding device, in which book blocks are held clamped in rounding elements in lift motion separate from rolling out motion to preselected defined height position

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EP0615863B1 (en) * 1993-03-18 1998-08-05 Kolbus GmbH & Co. KG Device for rounding the backs of book blocks
DE4330719A1 (en) * 1993-03-18 1994-09-22 Kolbus Gmbh & Co Kg Device for back rounding of book blocks
DE19859332A1 (en) 1998-12-22 2000-06-29 Kolbus Gmbh & Co Kg Rounding and pressing device for book blocks, with clamping elements movable against each other by pivoted levers
DE19859333A1 (en) * 1998-12-22 2000-07-06 Kolbus Gmbh & Co Kg Book making track with several processing points, consisting of individual modules with processing points having different functions
DE19942359A1 (en) * 1999-09-04 2001-03-08 Kolbus Gmbh & Co Kg Method of producing inner book involves sticking holder strips across inner book spine, and outer sheets of spine
DE10045400A1 (en) * 2000-09-14 2002-03-28 Kolbus Gmbh & Co Kg Book suspension machine output process involves folding booklets as they come out, pressing them flat and holding them non-positively up to flat-lying stack
DE10258502A1 (en) * 2002-12-14 2004-07-01 Kolbus Gmbh & Co. Kg Book pressing machine
JP4560413B2 (en) * 2004-02-27 2010-10-13 キヤノン株式会社 Sheet bundle back folding unit flat processing apparatus, sheet processing apparatus, and image forming apparatus
DE102007024636A1 (en) * 2007-05-24 2008-11-27 Esselte Leitz Gmbh & Co. Kg binding device
EP2888115B1 (en) 2012-08-24 2017-12-06 Entrust Datacard Corporation Booklet guide and clamp system in a booklet processing mechanism
KR101311434B1 (en) * 2012-09-27 2013-09-26 정재만 Self-adhesive scope magnification system of bookbinding machine
ITTO20130934A1 (en) * 2013-11-19 2015-05-20 Kore S P A PROCEDURE FOR READING A BOOK
BE1026865B1 (en) * 2018-12-12 2020-07-16 Peleman Industries Nv Folding device for making two parallel folds in a sheet of paper or the like

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US2010810A (en) * 1934-01-08 1935-08-13 Sheridan Iron Works Book rounding and backing
US2516446A (en) * 1947-07-29 1950-07-25 Florez Engineering Company Inc Bookbinding
FR1439825A (en) * 1963-04-24 1966-05-27 Tw & Cb Sheridan Co Improvements to machines for endorsing and rounding books
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Publication number Priority date Publication date Assignee Title
DE19859330A1 (en) * 1998-12-22 2000-07-06 Kolbus Gmbh & Co Kg Book block spine rounding device, in which book blocks are held clamped in rounding elements in lift motion separate from rolling out motion to preselected defined height position
US6158940A (en) * 1998-12-22 2000-12-12 Kolbus Gmbh & Co. Kg Device for the back rounding of book blocks

Also Published As

Publication number Publication date
US5114293A (en) 1992-05-19
JPH04216099A (en) 1992-08-06
EP0444409A1 (en) 1991-09-04
DE4005948A1 (en) 1991-08-29
DE59105021D1 (en) 1995-05-04

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