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EP2319707A1 - Device for applying adhesive to the back of a book transported in a transport clamp of an adhesive binder device with a coating spray nozzle - Google Patents

Device for applying adhesive to the back of a book transported in a transport clamp of an adhesive binder device with a coating spray nozzle Download PDF

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Publication number
EP2319707A1
EP2319707A1 EP09174995A EP09174995A EP2319707A1 EP 2319707 A1 EP2319707 A1 EP 2319707A1 EP 09174995 A EP09174995 A EP 09174995A EP 09174995 A EP09174995 A EP 09174995A EP 2319707 A1 EP2319707 A1 EP 2319707A1
Authority
EP
European Patent Office
Prior art keywords
adhesive
control valve
feed pump
spray nozzle
control device
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.)
Withdrawn
Application number
EP09174995A
Other languages
German (de)
French (fr)
Inventor
Thomas Strasser
Christoph Käppeli
Hanspeter Felix
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.)
Mueller Martini Holding AG
Original Assignee
Mueller Martini Holding AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mueller Martini Holding AG filed Critical Mueller Martini Holding AG
Priority to EP09174995A priority Critical patent/EP2319707A1/en
Publication of EP2319707A1 publication Critical patent/EP2319707A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C9/00—Applying glue or adhesive peculiar to bookbinding
    • B42C9/0006—Applying glue or adhesive peculiar to bookbinding by applying adhesive to a stack of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1015—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target
    • B05C11/1021—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target responsive to presence or shape of target
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1047—Apparatus or installations for supplying liquid or other fluent material comprising a buffer container or an accumulator between the supply source and the applicator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0204—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to the edges of essentially flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0258—Coating heads with slot-shaped outlet flow controlled, e.g. by a valve

Definitions

  • the invention relates to a device for applying adhesive to the back of a transported in a transport clip an adhesive binder book block by application nozzle which is conductively connected at the rear end with an adhesive receiving pump, wherein in an Klebstoffzumoltechnisch between feed pump and applicator a control valve for the supply and the Disruption of the supply of adhesive to the applicator nozzle is arranged, and the control valve and a drive of the feed pump are connected to a configurable control device.
  • An advantage of these adhesive application devices is their simple structure, but disadvantageous are the direct contact of the adhesive with the ambient air, the occurring during the long residence time of the adhesive in the glue pot mechanical stress of the adhesive and the frequent and large cleaning of the applicators. These disadvantages have a particularly negative effect on the processing of reactive adhesives that can chemically react or crack with the ambient air.
  • slot nozzle application devices are preferably used for the processing of reactive adhesives, for example polyurethanes which react chemically with moisture in the environment.
  • the adhesive is liquefied in a dense, dry gas filled pre-melter and fed via volumetric transfer pump via an adhesive supply line to a slot die applicator head and transferred therefrom to the book block spine or envelope.
  • the amount of adhesive to be delivered per unit time depends on the conveying speed of the book blocks, the book block thickness and the thickness of the glue film to be achieved.
  • a control device calculates the required speed, resp. the amount to be pumped by the pump.
  • a valve connected to the control device which interrupts the flow to the slot nozzle and diverts it into an adhesive return line.
  • a valve is for example in the DE 42 11 942 C2 disclosed.
  • a controllable throttle is arranged, which is adjusted before production in an adjustment process such that at a certain speed of the adhesive binder, the pump pressure is balanced, regardless of whether the flow is fed to the slot or diverted into the adhesive return line.
  • a fast-switching, so-called adhesive retraction device is arranged between the valve and the slot nozzle.
  • the Adhesive retractor adopts adhesive during the changeover of the valve from the position in which the slot die is supplied to adhesive to the position in which the adhesive is redirected to the adhesive return line, thus providing a clean glue tear upon completion of the glue application on the book block is.
  • the adhesive received by the adhesive retractor is returned to the slot die during the next reversal of the valve, upon subsequent application of the size film, from the adhesive return line to the slot die.
  • a disadvantage of such adhesive application devices is the additional mechanical stress of the adhesive in the adhesive return line and the throttle.
  • Another disadvantage is the component cost respectively. The cost of the adhesive return line and the throttle, wherein at least the adhesive return line must be maintained by a controlled heating at the adhesive application temperature.
  • the invention has for its object to provide a comparison with the prior art more economical adhesive application device that gently promotes the adhesive is formed by less or less expensive parts and their maintenance is low.
  • the feed pump on and off and the control valve can be opened and closed controllable.
  • the single figure shows a schematic representation of an embodiment of an adhesive application device of an adhesive binding device.
  • the single FIGURE schematically shows an adhesive binding device 1 with transport clamps 3 fastened at regular intervals to a pulling means 2, in which book block 4 are clamped during their processing with downwardly facing and easily from the transport brackets 3 protruding back 5.
  • the endlessly circulating traction means 2 can be driven by means of a drive wheel 7 by a main drive motor 6 and stretched by a deflecting wheel 8 situated at a distance from one another. Between drive wheel 7 and guide wheel 8, the traction means 2 forms two straight sections in which the book blocks 4 are processed during their promotion by stationary processing stations.
  • processing stations of an adhesive binder 1 are known: alignment stations, back processing stations, glue application stations, Umschlagzu Magazinestationen andconcentranpressstationen.
  • the main drive motor 6 of the perfect binding device 1 is connected to a configurable control device 9, by which it is controlled.
  • a configurable control device 9 For the purpose of position detection of the traction device 2 resp. the transport brackets 3 and their speed, an encoder 10 is provided which is connected to the drive wheel 7, the guide wheel 8 or directly to the traction means 2.
  • the encoder 10 is connected via a measuring line 11 to the control device 9.
  • an adhesive applicator 31 with afocuseddüse13 for applying an adhesive 12 on the back 5 of the transported in the transport clamps 3 of the perfect binder 1 book block 4 is provided in the glue application station an adhesive applicator 31 with afocuseddüse13, wherein the application nozzle 13 at its rear end with an adhesive 12 receiving, by a controllable drive 14 driven feed pump 15 is line connected.
  • a fast-switching control valve 17 for supplying and interrupting the supply of adhesive 12 to the application nozzle 13 is arranged in an adhesive supply line 16, which can be designed as a 2/2-way valve.
  • the control valve 17 and the drive 14 of the feed pump 15 are also connected to the control device 9, wherein depending on and clock bound with the transport of the book block 4, the feed pump 15 on and off and the control valve 17 are openable and lockable controllable.
  • a photocell connected to the control device 9 and belonging to the adhesive binding device 1 or the adhesive application device 31 detects the presence and length of the book block 4 and forwards corresponding signals to the control device.
  • the control device 9 generates from these signals and the signals available from the encoder 10 as well as the one connected to the control device 9
  • Operating unit 23 entered values for the times for applying the glue film 32 and for terminating the glue application.
  • the torque of the drive 14 is controlled by the control device 9 and by a pressure sensor 24 connected thereto so that the pressure in the adhesive supply line 16 is maintained, even if no adhesive 12 is conveyed .
  • the speed of the drive 14 resp. the flow rate of the feed pump 15 is calculated by the control device 9 on the basis of the thickness of the size film 32, the book block thickness and the speed of the transporting clamps 3.
  • the pressure sensor 24 arranged on the adhesive supply line 16 between the feed pump 15 and the control valve 17 and connected to the control device 9 continuously measures the pressure in the adhesive supply line 16 and forwards the measurement result to the control device 9.
  • the control device 9 compares the measurement result with stored setpoint values and generates an appropriate error message and / or a machine stop in the event of an impermissible deviation. In this way, for example, the viscosity of the adhesive 12 can be monitored, which allows an assessment of the adhesive quality.
  • a pressure relief valve 25 connected in parallel to the feed pump 15 is provided, which limits the pressure in the adhesive feed line 16 to a permissible value.
  • the adhesive is converted in a pre-melter 26 by heating from the solid to the liquid state.
  • the pre-melter 26 having a closed space has a heatable melting grid 27, on which solid adhesive 30 is piled up and melted as required.
  • the pre-melter 26 further comprises a heated by a controlled heater 28 memory 29, from which the feed pump 15 liquid adhesive 12 refers and to the application nozzle 13th promotes. It is also conceivable that the pre-melter 26 is not associated with the adhesive application device 31 and thus is not within the dashed line in the figure, the adhesive applicator 31 performing.
  • the liquid adhesive 12 can also be supplied to the conveying device 15 of the adhesive application device 31 in another known manner.
  • the adhesive binding device 1 and the adhesive application device 31 are controlled by means of the control device 9. It is also conceivable that the adhesive binding device 1 and the adhesive application device 31 are controlled by their own control devices, which are connected to each other for the exchange of signals by means of signal lines.

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  • Coating Apparatus (AREA)

Abstract

The device has a spray nozzle (13) conductively connected with a conveyor pump (15) at a rearward end, where the conveyor pump accommodates adhesive (12). A control valve (17) is arranged in an adhesive supply line (16) between the conveyor pump and the spray nozzle for supplying and interrupting the supply of the adhesive to the spray nozzle. The control valve and a drive (14) of the conveyor pump are connected with a configurable control device (9). The conveyor pump is activated or deactivated by transporting a book block (4). The control valve is controlled in an opened and closed manner.

Description

Die Erfindung betrifft eine Vorrichtung zum Auftragen von Klebstoff auf den Rücken eines in einer Transportklammer einer Klebebindevorrichtung transportierten Buchblocks mittels Auftragsdüse, die am rückwärtigen Ende mit einer Klebstoff aufnehmenden Förderpumpe leitungsverbunden ist, wobei in einer Klebstoffzuführleitung zwischen Förderpumpe und Auftragsdüse ein Steuerventil für die Zufuhr und zum Unterbruch der Zufuhr von Klebstoff zur Auftragsdüse angeordnet ist, und das Steuerventil und ein Antrieb der Förderpumpe mit einer konfigurierbaren Steuervorrichtung verbunden sind.The invention relates to a device for applying adhesive to the back of a transported in a transport clip an adhesive binder book block by application nozzle which is conductively connected at the rear end with an adhesive receiving pump, wherein in an Klebstoffzuführleitung between feed pump and applicator a control valve for the supply and the Disruption of the supply of adhesive to the applicator nozzle is arranged, and the control valve and a drive of the feed pump are connected to a configurable control device.

Bei der Herstellung von klebegebundenen Druckerzeugnissen wie Katalogen, Zeitschriften, Broschüren, Taschenbüchern oder ähnlichen Produkten werden Druckbogen zu losen Buchblocks zusammengetragen und anschliessend in einer Klebebindevorrichtung im Wesentlichen am Rücken bearbeitet, sodann wird Klebstoff auf den Buchblockrücken und/oder die Innenseite des Rückens eines Umschlags aufgetragen, der mit dem Buchblock vereint und anschliessend an diesen angepresst wird. Dabei sind die Buchblocks jeweils während der Bearbeitung in einer geführt umlaufenden Transportklammer der Klebebindevorrichtung mit nach unten vorstehendem Rücken eingespannt. Es ist bekannt, mittels in den Klebstoff eintauchenden und gleichsinnig mit den Transportklammern angetriebenen Auftragswalzen den Rücken und die angrenzenden seitlichen Bereiche der Buchblocks zu beleimen. Derartige Klebstoffauftragsvorrichtungen werden vorwiegend für die Verarbeitung von Kaltleimen oder Heissleimen eingesetzt. Vorteilhaft an diesen Klebstoffauftragsvorrichtungen ist deren einfacher Aufbau, nachteilig sind jedoch der direkte Kontakt des Klebstoffs mit der Umgebungsluft, die während der langen Verweilzeit des Klebstoffs im Leimbecken stattfindende mechanische Beanspruchung des Klebstoffs und der häufige und grosse Reinigungsaufwand der Auftragsvorrichtungen. Diese Nachteile wirken sich besonders negativ aus bei der Verarbeitung von reaktiven Klebstoffen, die mit der Umgebungsluft chemisch reagieren oder vercracken können.In the production of taped printed matter such as catalogs, magazines, brochures, paperbacks or similar products, signatures are gathered into loose book blocks and then substantially back worked in an adhesive binder, then adhesive is applied to the book block spine and / or the inside of the back of an envelope , which is combined with the book block and then pressed against this. The book blocks are each clamped during processing in a guided circumferential transport clamp the perfect binder with downwardly prominent back. It is known, by means of dipping into the adhesive and driven in the same direction with the transport rollers applicator rollers the back and to glaze the adjacent side areas of the book blocks. Such adhesive application devices are used primarily for the processing of cold glues or hot glue. An advantage of these adhesive application devices is their simple structure, but disadvantageous are the direct contact of the adhesive with the ambient air, the occurring during the long residence time of the adhesive in the glue pot mechanical stress of the adhesive and the frequent and large cleaning of the applicators. These disadvantages have a particularly negative effect on the processing of reactive adhesives that can chemically react or crack with the ambient air.

Für die Verarbeitung von reaktiven Klebstoffen, beispielsweise mit Feuchtigkeit der Umgebung chemisch reagierende Polyurethane, werden deshalb vorzugsweise sogenannte Schlitzdüsenauftragsvorrichtungen eingesetzt. Der Klebstoff wird in einem dichten, mit einem trockenen Gas gefüllten Vorschmelzgerät verflüssigt und mittels volumetrisch fördernder Pumpe über eine Klebstoffzuführleitung einem Schlitzdüsenauftragskopf zugeführt und von diesem auf den Buchblockrücken oder den Umschlag übertragen. Die pro Zeiteinheit zu fördernde Menge Klebstoff ist von der Fördergeschwindigkeit der Buchblocks, der Buchblockstärke und der zu erreichenden Dicke des Leimfilms abhängig. Auf der Basis dieser Parameter berechnet eine Steuervorrichtung die erforderliche Drehzahl resp. die durch die Pumpe zu fördernde Menge.Therefore, so-called slot nozzle application devices are preferably used for the processing of reactive adhesives, for example polyurethanes which react chemically with moisture in the environment. The adhesive is liquefied in a dense, dry gas filled pre-melter and fed via volumetric transfer pump via an adhesive supply line to a slot die applicator head and transferred therefrom to the book block spine or envelope. The amount of adhesive to be delivered per unit time depends on the conveying speed of the book blocks, the book block thickness and the thickness of the glue film to be achieved. On the basis of these parameters, a control device calculates the required speed, resp. the amount to be pumped by the pump.

Im Bereich zwischen sich folgenden Buchblocks muss die Klebstoffzufuhr an die Schlitzdüse unterbrochen werden. Dazu ist im unmittelbaren Bereich vor der Schlitzdüse ein mit der Steuervorrichtung verbundenes Ventil vorgesehen, das den Förderstrom zur Schlitzdüse unterbricht und in eine Klebstoffrücklaufleitung umleitet. Ein derartiges Ventil ist beispielsweise in der DE 42 11 942 C2 offenbart. In der Klebstoffrücklaufleitung ist eine regelbare Drossel angeordnet, die vor Produktionsbeginn in einem Abgleichvorgang derart eingestellt wird, dass bei einer bestimmten Geschwindigkeit der Klebebindevorrichtung der Pumpendruck ausgeglichen ist, unabhängig davon, ob der Förderstrom der Schlitzdüse zugeführt oder in die Klebstoffrücklaufleitung umgeleitet wird. Zusätzlich ist zwischen dem Ventil und der Schlitzdüse eine schnell schaltende, sogenannte Klebstoff-Rückzugseinrichtung angeordnet. Die Klebstoff-Rückzugseinrichtung nimmt während dem Umsteuern des Ventils von der Stellung, in der die Schlitzdüse mit Klebstoff versorgt wird, in die Stellung in der der Klebstoff in die Klebstoffrücklaufleitung umgeleitet wird, Klebstoff auf, womit ein sauberer Leimabriss beim Beenden des Leimauftrags auf den Buchblocks erreichbar ist. Der durch die Klebstoff-Rückzugseinrichtung aufgenommene Klebstoff wird während dem nächsten Umsteuern des Ventils, beim folgenden Auftragen des Leimfilms, von der Klebstoffrücklaufleitung zur Schlitzdüse wieder an die Schlitzdüse abgegeben. Nachteilig an derartigen Klebstoffauftragsvorrichtungen ist die zusätzliche mechanische Belastung des Klebstoffs in der Klebstoffrücklaufleitung und der Drossel. Ein weiterer Nachteil ist der Bauteileaufwand resp. sind die Kosten für die Klebstoffrücklaufleitung und die Drossel, wobei zumindest die Klebstoffrücklaufleitung durch eine geregelte Heizung auf der Klebstoffauftragstemperatur gehalten werden muss.In the area between following book blocks, the adhesive supply to the slot nozzle must be interrupted. For this purpose, in the immediate area in front of the slot nozzle, a valve connected to the control device is provided, which interrupts the flow to the slot nozzle and diverts it into an adhesive return line. Such a valve is for example in the DE 42 11 942 C2 disclosed. In the adhesive return line, a controllable throttle is arranged, which is adjusted before production in an adjustment process such that at a certain speed of the adhesive binder, the pump pressure is balanced, regardless of whether the flow is fed to the slot or diverted into the adhesive return line. In addition, a fast-switching, so-called adhesive retraction device is arranged between the valve and the slot nozzle. The Adhesive retractor adopts adhesive during the changeover of the valve from the position in which the slot die is supplied to adhesive to the position in which the adhesive is redirected to the adhesive return line, thus providing a clean glue tear upon completion of the glue application on the book block is. The adhesive received by the adhesive retractor is returned to the slot die during the next reversal of the valve, upon subsequent application of the size film, from the adhesive return line to the slot die. A disadvantage of such adhesive application devices is the additional mechanical stress of the adhesive in the adhesive return line and the throttle. Another disadvantage is the component cost respectively. The cost of the adhesive return line and the throttle, wherein at least the adhesive return line must be maintained by a controlled heating at the adhesive application temperature.

Der Erfindung liegt die Aufgabe zugrunde, eine gegenüber dem Stand der Technik wirtschaftlichere Klebstoffauftragsvorrichtung zu schaffen, die den Klebstoff schonend fördert, durch weniger oder kostengünstigere Teile gebildet wird und deren Wartungsaufwand gering ist.The invention has for its object to provide a comparison with the prior art more economical adhesive application device that gently promotes the adhesive is formed by less or less expensive parts and their maintenance is low.

Die Aufgabe wird erfindungsgemäss dadurch gelöst, dass abhängig von und taktgebunden mit dem Transport der Buchblocks die Förderpumpe ein- und ausschaltbar und das Steuerventil öffen- und schliessbar steuerbar sind.The object is achieved according to that dependent on and clock bound with the transport of the book blocks, the feed pump on and off and the control valve can be opened and closed controllable.

Die Erfindung wird anschliessend unter Bezugnahme auf die Zeichnung und den zitierten Stand der Technik, auf die bezüglich aller in der Beschreibung nicht erwähnten Einzelheiten verwiesen wird, anhand eines Ausführungsbeispiels erläutert.The invention will be explained below with reference to the drawing and the cited prior art, to which reference is made with respect to all details not mentioned in the description, using an exemplary embodiment.

Die einzige Figur zeigt eine schematische Darstellung eines Ausführungsbeispiels einer Klebstoffauftragsvorrichtung einer Klebebindevorrichtung.The single figure shows a schematic representation of an embodiment of an adhesive application device of an adhesive binding device.

In der einzigen Figur ist schematisch eine Klebebindevorrichtung 1 mit in regelmässigen Abständen an einem Zugmittel 2 befestigten Transportklammern 3 dargestellt, in denen Buchblocks 4 während ihrer Bearbeitung mit nach unten weisendem und leicht aus den Transportklammern 3 vorstehendem Rücken 5 eingespannt sind. Das endlos umlaufende Zugmittel 2 ist mittels eines Antriebsrads 7 durch einen Hauptantriebsmotor 6 antreibbar und durch ein im Abstand gegenüberliegendes Umlenkrad 8 gespannt. Zwischen Antriebsrad 7 und Umlenkrad 8 bildet das Zugmittel 2 zwei gerade Abschnitte, in denen die Buchblocks 4 während ihrer Förderung durch ortsfeste Bearbeitungsstationen bearbeitet werden. Als typische Bearbeitungsstationen einer Klebebindevorrichtung 1 sind bekannt: Ausrichtstationen, Rückenbearbeitungsstationen, Leimauftragsstationen, Umschlagzuführstationen und Rückenanpressstationen. Der Hauptantriebsmotor 6 der Klebebindevorrichtung 1 ist mit einer konfigurierbaren Steuervorrichtung 9 verbunden, durch die er gesteuert wird. Zwecks Positionserfassung des Zugmittels 2 resp. der Transportklammern 3 sowie deren Geschwindigkeit, ist ein Encoder 10 vorgesehen, der mit dem Antriebsrad 7, dem Umlenkrad 8 oder direkt mit dem Zugmittel 2 verbunden ist. Der Encoder 10 ist über eine Messleitung 11 mit der Steuervorrichtung 9 verbunden.The single FIGURE schematically shows an adhesive binding device 1 with transport clamps 3 fastened at regular intervals to a pulling means 2, in which book block 4 are clamped during their processing with downwardly facing and easily from the transport brackets 3 protruding back 5. The endlessly circulating traction means 2 can be driven by means of a drive wheel 7 by a main drive motor 6 and stretched by a deflecting wheel 8 situated at a distance from one another. Between drive wheel 7 and guide wheel 8, the traction means 2 forms two straight sections in which the book blocks 4 are processed during their promotion by stationary processing stations. As typical processing stations of an adhesive binder 1 are known: alignment stations, back processing stations, glue application stations, Umschlagzuführstationen and Rückenanpressstationen. The main drive motor 6 of the perfect binding device 1 is connected to a configurable control device 9, by which it is controlled. For the purpose of position detection of the traction device 2 resp. the transport brackets 3 and their speed, an encoder 10 is provided which is connected to the drive wheel 7, the guide wheel 8 or directly to the traction means 2. The encoder 10 is connected via a measuring line 11 to the control device 9.

Zum Auftragen eines Klebstoffs 12 auf den Rücken 5 der in den Transportklammern 3 der Klebebindevorrichtung 1 transportierten Buchblocks 4 ist in der Leimauftragsstation eine Klebstoffauftragsvorrichtung 31 mit einer Auftragsdüse13 vorgesehen, wobei die Auftragsdüse 13 an ihrem rückwärtigen Ende mit einer Klebstoff 12 aufnehmenden, durch einen regelbaren Antrieb 14 angetriebenen Förderpumpe 15 leitungsverbunden ist.For applying an adhesive 12 on the back 5 of the transported in the transport clamps 3 of the perfect binder 1 book block 4 is provided in the glue application station an adhesive applicator 31 with a Auftragdüse13, wherein the application nozzle 13 at its rear end with an adhesive 12 receiving, by a controllable drive 14 driven feed pump 15 is line connected.

Zwischen Förderpumpe 15 und Auftragsdüse13 ist in einer Klebstoffzuführleitung 16 ein schnell schaltendes Steuerventil 17 für die Zufuhr und zum Unterbruch der Zufuhr von Klebstoff 12 zur Auftragsdüse 13 angeordnet, das als 2/2-Wegeventil ausgebildet sein kann. Das Steuerventil 17 und der Antrieb 14 der Förderpumpe 15 sind ebenfalls mit der Steuervorrichtung 9 verbunden, wobei abhängig von und taktgebunden mit dem Transport der Buchblocks 4 die Förderpumpe 15 ein- und ausschaltbar und das Steuerventil 17 öffen- und schliessbar steuerbar sind.Between feed pump 15 and application nozzle 13, a fast-switching control valve 17 for supplying and interrupting the supply of adhesive 12 to the application nozzle 13 is arranged in an adhesive supply line 16, which can be designed as a 2/2-way valve. The control valve 17 and the drive 14 of the feed pump 15 are also connected to the control device 9, wherein depending on and clock bound with the transport of the book block 4, the feed pump 15 on and off and the control valve 17 are openable and lockable controllable.

Zwischen Steuerventil 17 und Auftragsdüse 13 ist zusätzlich eine mit der Steuervorrichtung 9 verbundene Klebstoff-Rückzugseinrichtung 18 angeordnet, die über ein Ventil 19 mit der Steuervorrichtung 9 verbunden ist. Im Detail wird ein durch einen Leimfilmanfang 20 und ein Leimfilmende 21 begrenzter Leimfilm 32 durch folgenden zeitlichen Ablauf erreicht:

  • Zum Auftragen des Leimfilms 32 wird im wesentlichen gleichzeitig das Steuerventil 17 geöffnet, die Förderpumpe 15 gestartet und auf die berechnete Drehzahl beschleunigt sowie durch die Klebstoff-Rückzugseinrichtung 18 der vorgängig darin gespeicherte Klebstoff 12 ausgestossen. Durch die gemeinsame und zeitlich koordinierte Wirkung der Förderpumpe 15, des Steuerventils 17 und der Klebstoff-Rückzugseinrichtung 18 ist ein sauber definierter Leimfilmanfang 20 erreichbar. Während dem Klebstoffauftrag dreht die Förderpumpe 15 mit konstanter Drehzahl.
  • Zum Beenden des Leimauftrags werden im Wesentlichen gleichzeitig das Steuerventil 17 geschlossen, die Förderpumpe 15 angehalten sowie durch die Klebstoff-Rückzugseinrichtung 18 Klebstoff 12 aufgenommen, der für den nächsten Leimfilm 32 wiederum zum Ausstossen verfügbar ist. Durch die gemeinsame und zeitlich koordinierte Wirkung der Förderpumpe 15, des Steuerventils 17 und der Klebstoff-Rückzugseinrichtung 18 ist ein sauber definiertes Leimfilmende 21 erreichbar. Das Speichervolumen der Klebstoff-Rückzugseinrichtung 18 ist an die Betriebsbedingungen anpassbar resp. einstellbar. Die Klebstoff-Rückzugseinrichtung 18 und das Steuerventil 17 unterstützen die Klebstoffförderung in dem Sinne, dass die Klebstoffzufuhr an die Auftragsdüse 13 zum Auftragen des Leimfilms 32 schnell aufgebaut und beim Beenden des Leimauftrags schnell abgebaut wird, womit ein in Förderrichtung F klar definierter Leimfilm 32 erreichbar ist.
Between control valve 17 and application nozzle 13, an adhesive retraction device 18 connected to the control device 9 is additionally arranged, which is connected via a valve 19 to the control device 9. In detail, a size film 32 bounded by a glue film leader 20 and a glue film end 21 is achieved by the following timing:
  • For applying the glue film 32, the control valve 17 is opened substantially at the same time, the feed pump 15 is started and accelerated to the calculated speed, and the adhesive 12 previously stored therein is ejected by the adhesive retraction device 18. Due to the joint and temporally coordinated action of the feed pump 15, the control valve 17 and the adhesive retraction device 18, a cleanly defined glue film leader 20 can be achieved. During the adhesive application, the feed pump 15 rotates at a constant speed.
  • To terminate the glue application, the control valve 17 is closed substantially at the same time, the delivery pump 15 is stopped and taken up by the adhesive retraction device 18 adhesive 12, which in turn is available for ejection for the next size film 32. Due to the joint and temporally coordinated action of the feed pump 15, the control valve 17 and the adhesive retraction device 18, a cleanly defined glue film end 21 can be reached. The storage volume of the adhesive retraction device 18 is adaptable to the operating conditions. adjustable. The adhesive retraction device 18 and the control valve 17 assist in the promotion of adhesive in the sense that the adhesive supply to the application nozzle 13 for applying the size film 32 is rapidly built up and rapidly degraded upon completion of the glue application, whereby a clearly defined in the conveying direction F glue film 32 can be reached ,

Eine mit der Steuervorrichtung 9 verbundene, zur Klebebindevorrichtung 1 oder zur Klebstoffauftragsvorrichtung 31 gehörende Photozelle 22 erfasst die Anwesenheit und Länge der Buchblocks 4 und gibt entsprechende Signale an die Steuervorrichtung weiter. Die Steuervorrichtung 9 generiert aus diesen Signalen und den vom Encoder 10 verfügbaren Signalen sowie den in eine mit der Steuervorrichtung 9 verbundenen Bedieneinheit 23 eingegeben Werten die Zeitpunkte für das Auftragen des Leimfilms 32 und zum Beenden des Leimauftrags.A photocell connected to the control device 9 and belonging to the adhesive binding device 1 or the adhesive application device 31 detects the presence and length of the book block 4 and forwards corresponding signals to the control device. The control device 9 generates from these signals and the signals available from the encoder 10 as well as the one connected to the control device 9 Operating unit 23 entered values for the times for applying the glue film 32 and for terminating the glue application.

Bei geschlossenem Steuerventil 17 und stehendem Antrieb 14 der Förderpumpe 15 wird das Drehmoment des Antriebs 14 durch die Steuervorrichtung 9 und durch einen mit dieser verbundenen Drucksensor 24 derart geregelt, dass der Druck in der Klebstoffzuführleitung 16 aufrecht erhalten bleibt, auch wenn kein Klebstoff 12 gefördert wird. Die Drehzahl des Antriebs 14 resp. die Fördermenge der Förderpumpe 15 werden durch die Steuervorrichtung 9 aufgrund der Dicke des Leimfilms 32, der Buchblockdicke und der Geschwindigkeit der Transportklammern 3 berechnet. Der an der Klebstoffzuführleitung 16 zwischen Förderpumpe 15 und Steuerventil 17 angeordnete und mit der Steuervorrichtung 9 verbundene Drucksensor 24 misst laufend den Druck in der Klebstoffzuführleitung 16, und leitet das Messergebnis an die Steuervorrichtung 9 weiter. Die Steuervorrichtung 9 vergleicht das Messergebnis mit abgespeicherten Sollwerten und generiert bei einer unzulässigen Abweichung eine entsprechende Fehlermeldung und/oder einen Maschinenstopp. Auf diese Weise kann beispielsweise die Viskosität des Klebstoffs 12 überwacht werden, die eine Beurteilung der Klebstoffqualität ermöglicht.When the control valve 17 is closed and the drive 14 of the feed pump 15 is stationary, the torque of the drive 14 is controlled by the control device 9 and by a pressure sensor 24 connected thereto so that the pressure in the adhesive supply line 16 is maintained, even if no adhesive 12 is conveyed , The speed of the drive 14 resp. the flow rate of the feed pump 15 is calculated by the control device 9 on the basis of the thickness of the size film 32, the book block thickness and the speed of the transporting clamps 3. The pressure sensor 24 arranged on the adhesive supply line 16 between the feed pump 15 and the control valve 17 and connected to the control device 9 continuously measures the pressure in the adhesive supply line 16 and forwards the measurement result to the control device 9. The control device 9 compares the measurement result with stored setpoint values and generates an appropriate error message and / or a machine stop in the event of an impermissible deviation. In this way, for example, the viscosity of the adhesive 12 can be monitored, which allows an assessment of the adhesive quality.

Obwohl beim Beenden des Leimauftrags die Fördermenge der Förderpumpe 15 gleichzeitig mit dem Schliessen des Steuerventils 17 auf null reduziert wird, kann sich kurzzeitig in der Klebstoffzuführleitung 16 ein unzulässig hoher Druck aufbauen, der zu Schäden an Anlageteilen führen kann. Zur Vermeidung solcher Drücke ist ein parallel zur Förderpumpe 15 geschaltetes Überdruckventil 25 vorgesehen, das den Druck in der Klebstoffzuführleitung 16 auf einen zulässigen Wert begrenzt.Although at the end of the glue application, the delivery rate of the feed pump 15 is reduced to zero simultaneously with the closing of the control valve 17, an impermissibly high pressure can briefly build up in the Klebstoffzuführleitung 16, which can lead to damage to equipment. In order to avoid such pressures, a pressure relief valve 25 connected in parallel to the feed pump 15 is provided, which limits the pressure in the adhesive feed line 16 to a permissible value.

Der Klebstoff wird in einem Vorschmelzer 26 durch Aufheizen vom festen in den flüssigen Zustand überführt. Hierzu besitzt der einen geschlossenen Raum aufweisende Vorschmelzer 26 einen beheizbaren Schmelzrost 27, auf dem fester Klebstoff 30 aufgeschichtet und bedarfsgesteuert aufgeschmolzen wird. Der Vorschmelzer 26 umfasst weiter einen mittels einer geregelten Heizung 28 beheizten Speicher 29, aus dem die Förderpumpe 15 flüssigen Klebstoff 12 bezieht und an die Auftragsdüse 13 fördert. Es ist auch denkbar, dass der Vorschmelzer 26 nicht der Klebstoffauftragsvorrichtung 31 zugeordnet ist und somit nicht innerhalb der in der Figur die Klebstoffauftragsvorrichtung 31 darstellenden, gestrichelten Linie liegt. Der flüssige Klebstoff 12 kann auch auf andere bekannte Art und Weise der Förderpumpe 15 der Klebstoffauftragsvorrichtung 31 zugeführt werden.The adhesive is converted in a pre-melter 26 by heating from the solid to the liquid state. For this purpose, the pre-melter 26 having a closed space has a heatable melting grid 27, on which solid adhesive 30 is piled up and melted as required. The pre-melter 26 further comprises a heated by a controlled heater 28 memory 29, from which the feed pump 15 liquid adhesive 12 refers and to the application nozzle 13th promotes. It is also conceivable that the pre-melter 26 is not associated with the adhesive application device 31 and thus is not within the dashed line in the figure, the adhesive applicator 31 performing. The liquid adhesive 12 can also be supplied to the conveying device 15 of the adhesive application device 31 in another known manner.

Im gezeigten Ausführungsbeispiel werden mittels der Steuervorrichtung 9 die Klebebindevorrichtung 1 und die Klebstoffauftragsvorrichtung 31 gesteuert. Es ist ebenfalls denkbar, dass die Klebebindevorrichtung 1 und die Klebstoffauftragsvorrichtung 31 durch eigene Steuervorrichtungen gesteuert werden, die miteinander zum Austausch von Signalen mittels Signalleitungen verbunden sind.In the exemplary embodiment shown, the adhesive binding device 1 and the adhesive application device 31 are controlled by means of the control device 9. It is also conceivable that the adhesive binding device 1 and the adhesive application device 31 are controlled by their own control devices, which are connected to each other for the exchange of signals by means of signal lines.

Claims (5)

Vorrichtung zum Auftragen von Klebstoff (12) auf den Rücken (5) eines in einer Transportklammer (3) einer Klebebindevorrichtung (1) transportierten Buchblocks (4) mittels Auftragsdüse (13), die am rückwärtigen Ende mit einer Klebstoff (12) aufnehmenden Förderpumpe (15) leitungsverbunden ist, wobei in einer Klebstoffzuführleitung (16) zwischen Förderpumpe (15) und Auftragsdüse (13) ein Steuerventil (17) für die Zufuhr und zum Unterbruch der Zufuhr von Klebstoff (12) zur Auftragsdüse (13) angeordnet ist, und das Steuerventil (17) und ein Antrieb (14) der Förderpumpe (15) mit einer konfigurierbaren Steuervorrichtung (9) verbunden sind, dadurch gekennzeichnet, dass abhängig von und taktgebunden mit dem Transport der Buchblocks (4) die Förderpumpe (15) ein- und ausschaltbar und das Steuerventil (17) öffen- und schliessbar steuerbar sind.Device for applying adhesive (12) to the back (5) of a book block (4) transported in a transport clamp (3) of an adhesive binding device (1) by means of application nozzle (13), the feed pump receiving at the rear end with an adhesive (12) ( 15) is conductively connected, wherein in a Klebstoffzuführleitung (16) between the feed pump (15) and application nozzle (13) a control valve (17) for the supply and interruption of the supply of adhesive (12) to the application nozzle (13) is arranged, and Control valve (17) and a drive (14) of the feed pump (15) with a configurable control device (9) are connected, characterized in that depending on and clock bound with the transport of the book blocks (4), the feed pump (15) on and off and the control valve (17) can be opened and closed controllable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Steuerventil (17) als 2/2-Wegeventil ausgebildet ist.Apparatus according to claim 1, characterized in that the control valve (17) is designed as a 2/2-way valve. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass an der Klebstoffzuführleitung (16) zwischen Förderpumpe (15) und Steuerventil (17) ein mit der Steuervorrichtung (9) verbundener Drucksensor (24) angeordnet ist.Apparatus according to claim 1 or 2, characterized in that on the Klebstoffzuführleitung (16) between the feed pump (15) and control valve (17) with the control device (9) connected to the pressure sensor (24) is arranged. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zwischen Steuerventil (17) und Auftragsdüse (13) eine mit der Steuervorrichtung (9) verbundene, steuerbare Klebstoff-Rückzugseinrichtung (18) angeordnet ist.Device according to one of claims 1 to 3, characterized in that between the control valve (17) and application nozzle (13) connected to the control device (9), controllable adhesive retraction device (18) is arranged. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass in der Klebstoffzuführleitung (16) ein parallel zur Fördepumpe (15) geschaltetes Überdruckventil (25) vorgesehen ist.Device according to one of claims 1 to 4, characterized in that in the Klebstoffzuführleitung (16) a parallel to the delivery pump (15) connected overpressure valve (25) is provided.
EP09174995A 2009-11-04 2009-11-04 Device for applying adhesive to the back of a book transported in a transport clamp of an adhesive binder device with a coating spray nozzle Withdrawn EP2319707A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09174995A EP2319707A1 (en) 2009-11-04 2009-11-04 Device for applying adhesive to the back of a book transported in a transport clamp of an adhesive binder device with a coating spray nozzle

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EP09174995A EP2319707A1 (en) 2009-11-04 2009-11-04 Device for applying adhesive to the back of a book transported in a transport clamp of an adhesive binder device with a coating spray nozzle

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EP2319707A1 true EP2319707A1 (en) 2011-05-11

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Cited By (4)

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DE202012008417U1 (en) 2012-07-10 2012-09-27 Heidelberger Druckmaschinen Ag Apparatus for applying adhesive
EP2886200A1 (en) * 2013-12-18 2015-06-24 Nordson Corporation Device and method for intermittently applying a liquid material, in particular foamed adhesive onto a substrate
CN109476172A (en) * 2017-04-18 2019-03-15 好利用国际株式会社 Binding apparatus
EP3546071A1 (en) 2018-03-27 2019-10-02 Robatech AG Device for intermittently applying a flowable substance and method for applying such a substance

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US3348520A (en) * 1965-09-16 1967-10-24 Lockwood Tech Applicator system for hot melt adhesive and the like
US4925354A (en) * 1989-10-10 1990-05-15 Am International Incorporated Apparatus and method for applying adhesive to books
DE4121792A1 (en) * 1991-07-02 1993-01-07 Kolbus Gmbh & Co Kg Book back gluing nozzle system - has self adjusting pressure relief discharge at higher than application pressure
DE4211942C2 (en) 1992-04-09 1995-09-07 Wallner Harald Glue application valve
WO2006102783A1 (en) * 2005-03-30 2006-10-05 Sogno Ag Adhesive application station for binding printed material

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US2660148A (en) * 1951-07-28 1953-11-24 Mccall Corp Adhesive extruder for bookbinding machines
US3348520A (en) * 1965-09-16 1967-10-24 Lockwood Tech Applicator system for hot melt adhesive and the like
US4925354A (en) * 1989-10-10 1990-05-15 Am International Incorporated Apparatus and method for applying adhesive to books
DE4121792A1 (en) * 1991-07-02 1993-01-07 Kolbus Gmbh & Co Kg Book back gluing nozzle system - has self adjusting pressure relief discharge at higher than application pressure
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Publication number Priority date Publication date Assignee Title
DE202012008417U1 (en) 2012-07-10 2012-09-27 Heidelberger Druckmaschinen Ag Apparatus for applying adhesive
EP2684702A2 (en) 2012-07-10 2014-01-15 Heidelberger Druckmaschinen AG Device for applying adhesive and method for operating such a device
DE102012014974A1 (en) 2012-07-10 2014-01-16 Heidelberger Druckmaschinen Aktiengesellschaft Apparatus for applying adhesive and method for operating such a device
CN103538388A (en) * 2012-07-10 2014-01-29 海德堡印刷机械股份公司 Apparatus for applying adhesive and method for operating such an apparatus
EP2886200A1 (en) * 2013-12-18 2015-06-24 Nordson Corporation Device and method for intermittently applying a liquid material, in particular foamed adhesive onto a substrate
US10766290B2 (en) * 2017-04-18 2020-09-08 Horizon International Inc. Bookbinding machine
US20200147991A1 (en) * 2017-04-18 2020-05-14 Horizon International Inc. Bookbinding machine
CN109476172A (en) * 2017-04-18 2019-03-15 好利用国际株式会社 Binding apparatus
EP3613599A4 (en) * 2017-04-18 2020-11-18 Horizon International Inc. Bookbinding apparatus
CN109476172B (en) * 2017-04-18 2021-03-23 好利用国际株式会社 Binding device
EP3546071A1 (en) 2018-03-27 2019-10-02 Robatech AG Device for intermittently applying a flowable substance and method for applying such a substance
CN110302911A (en) * 2018-03-27 2019-10-08 乐佰得控股集团 Method for intermittently coating the equipment of flowable materials and for coating such material
US11273461B2 (en) 2018-03-27 2022-03-15 Robatech Ag Device for intermittently applying a flowable substance, and method for applying such a substance
CN110302911B (en) * 2018-03-27 2022-06-24 乐佰得控股集团 Apparatus for intermittently applying flowable materials and method for applying such materials

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