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EP0369348A2 - Device for applying an adhesive strip - Google Patents

Device for applying an adhesive strip Download PDF

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Publication number
EP0369348A2
EP0369348A2 EP89120875A EP89120875A EP0369348A2 EP 0369348 A2 EP0369348 A2 EP 0369348A2 EP 89120875 A EP89120875 A EP 89120875A EP 89120875 A EP89120875 A EP 89120875A EP 0369348 A2 EP0369348 A2 EP 0369348A2
Authority
EP
European Patent Office
Prior art keywords
glue
glue cylinder
web
cylinder
wipe
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.)
Granted
Application number
EP89120875A
Other languages
German (de)
French (fr)
Other versions
EP0369348A3 (en
EP0369348B1 (en
Inventor
Herbert Stanka
Franz Waizmann
Nick O'rourke
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.)
Baldwin Gegenheimer GmbH
Original Assignee
Baldwin Gegenheimer GmbH
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
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Application filed by Baldwin Gegenheimer GmbH filed Critical Baldwin Gegenheimer GmbH
Priority to AT89120875T priority Critical patent/ATE93170T1/en
Publication of EP0369348A2 publication Critical patent/EP0369348A2/en
Publication of EP0369348A3 publication Critical patent/EP0369348A3/en
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    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/10—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the liquid or other fluent material being supplied from inside the roller

Definitions

  • the invention relates to a device for applying a glue strip running transversely to the longitudinal direction of the web on a web, in particular a printed paper web, with a glue cylinder provided with glue nozzles arranged along at least one surface line, which rolls on the web, which preferably wraps partially around it.
  • the circumference of the glue cylinder can be wiped off by means of at least one wiping device containing a wiping cloth, the wiping cloth which can be pressed onto the cylinder circumference engaging in the region of the gusset between the glue cylinder and the web running off therefrom following the contact point.
  • the wipe not only removes the glue residues and paint residues Glue cylinder from which this is kept clean and an exact punctiform application of glue is guaranteed, but also catches the spraying droplets, so that the resulting contamination of the web or the surrounding area is also avoided.
  • the absorbency of the wiping cloth it is also ensured that the glue absorbed by the wiping cloth is held even when subjected to heavy loads and a low cloth consumption is nevertheless ensured.
  • the wipe also offers the simple possibility of moistening the glue cylinder, which not only can dissolve dried glue residues, but also prevents paint from being deposited on the glue cylinder from the start can be knitted. At the same time, this results in moistening of the web, which can facilitate a subsequent folding process.
  • a moistened wipe offers the further advantageous possibility of closing the openings of the glue nozzles when the glue cylinder is at a standstill and preventing the glue from drying.
  • the wipe can therefore expediently be moistened with water or the dampening solution customary in offset machines by means of a moistening device arranged upstream of the contact point with the glue cylinder.
  • a further expedient measure can consist in that the wipe that can be wound up from a supply roll and onto a storage roll in the area between the Rolls of a preferably designed as an inflatable bellows pressing operation, which is preferably relieved during the step-by-step transport of the wipe. This ensures that no wiping forces are transferred to the wiping cloth, which can preferably be transported in the opposite direction to the glue cylinder, during which the transport mechanism is relieved.
  • two diametrically opposite wiping devices can be provided. This measure enables a simple reversal of the direction of rotation of the glue cylinder, only one wiping device needing to be activated at a time, but both can be activated in difficult cases.
  • a reliable closure of all glue nozzles can be made possible at a standstill, in which both wipes are put on.
  • the strands 2a, 2b are glued to one another in the region of each transverse fold line by means of a glue strip 3 running transversely to the longitudinal direction of the web.
  • the strand 2a is guided in the form of a U-shaped loop in the illustrated embodiment, in which a transverse gluing device is located.
  • This consists of a glue cylinder 4 wrapped by the associated strand 2a at an angle of more than 90 °, which is provided with a circumferential nozzle strip 5 or more circumferential nozzle strips 5.
  • glue nozzles 6 arranged along a circumferential surface line, which glue can be applied to in the wrapping area from the cylinder interior.
  • Each glue nozzle 6 produces a punctiform glue application, which is transverse to the web direction glue strip 3 results.
  • These are practically composed of several glue points arranged side by side, which is indicated in FIG. 1.
  • the glue cylinder 4 is assigned a wiping device 7, which is arranged in the region of the outlet of the strand 2a from the glue cylinder 4 and whose task is to wipe the circumference of the glue cylinder 4 and which when the Strang 2 of the glue cylinder 4, that is to catch droplets spraying during the division of the glue application.
  • the wiping device 7 contains a wiping cloth 10 which can be unwound from a supply roll 8 and wound onto a storage roll 9 and which in the area between the storage roll 8 and the storage roll 9 extends to the circumference of the glue cylinder 4 is pressable.
  • the wiping cloth 10 is gripped by a pressing member 11 arranged between the supply roll 8 and the storage roll 9.
  • this is designed as an inflatable bellows, which presses the wipe 10 onto the glue cylinder 4 in the inflated state. In the relieved state of the bellows, there is a slight distance from the glue cylinder 4, so that the wipe 10 can be transported without stress.
  • the wipe 10, which is transported against the direction of the glue cylinder 4, is transported step by step.
  • the storage roll 9 can be driven step by step and the supply roll 8 can be unlocked step by step. At the same time, the pressure element 11 is relieved.
  • the discharge run 10a of the wiping cloth 10 running from the pressing member 11, like the strand 2a running from the glue cylinder 4, is guided away from the glue cylinder 4, that is to the radially outward direction, the discharge run 10a of the wiping cloth running off the pressing member 10 and the one running off the glue cylinder 4 Area of the strand 2a opposite to form a gusset.
  • the run-off run 10a of the wiping cloth is guided over the edge of the pressing member 11 and a deflecting member 12 projecting over this edge in the direction of the strand 2a running outward, before it runs onto the spreader roller 9 arranged radially outside the pressing member 11 with respect to the glue cylinder 4.
  • the deflecting element 12 is simply designed as a bar molded onto the holder of the pressing element 11.
  • the deflecting element 12 In the area between the pressing member 11 and the storage roller 9, there is thus a course which is bent in the direction of the strand 2a, that is to say a course of the runout run 10a of the wiping cloth which engages in the gusset between the glue cylinder 4 and the strand 2a running off it.
  • This therefore not only wipes impurities in the form of glue blobs indicated at 13 from the circumference of the glue cylinder 4, but can also collect glue droplets 14 tangentially spraying off from the glue cylinder 4, particularly in the region of the run of the strand 2a.
  • the strand 2a which is guided around the glue cylinder 4 in the form of a large wrap angle is over a deflecting roller 15 adjacent to the glue cylinder 4, which is arranged upstream of the pressure element 11 on the circumference of the glue cylinder 4, is pulled off the latter.
  • the wiping cloth 10 can be moistened with water or a dampening solution customary in offset machines prior to its emergence on the associated pressing member 11 and accordingly before the contact point with the glue cylinder 4.
  • a wiping cloth 10 in the area between the supply roll 8 and the pressing member 11 engaging behind the nozzle bar 16 is provided, which is provided with a plurality of spray nozzles 17 distributed over its length.
  • the nozzles 17 are connected to a collecting space provided in the nozzle bar 16, which is filled with liquid and is connected to a compressed air source for moistening the wipe 10, the existing liquid filling being blown out via the nozzles 17.
  • the nozzles 17 are directed into the gusset between the pressing member 11 and the wiping cloth 10 running onto it, so that it is also possible to track the dampening solution during the wiping process.
  • the wipe is moistened during or shortly before a transport step.
  • a further dampening solution supply is only required between two transport steps in special cases.
  • the nozzles 17 are covered by a protective plate 18 which has a drip edge located approximately above the contact point between the glue cylinder 4 and the pressing member 11.
  • the moistening of the wipe 10 not only produces a particularly good cleaning effect, but at the same time also produces a moisture film on the glue cylinder 4, which counteracts the depositing of paint and at the same time moistens the strand 2a as a folding aid.
  • the supply roll 8 is scanned by a box 19 which triggers a signal when the cloth supply runs out.
  • the drive device provided for the fabric feed can be clocked automatically and can also be activated by hand. The same applies to the humidifier.

Landscapes

  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Coating Apparatus (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Package Closures (AREA)

Abstract

Bei einer Querleimeinrichtung mit einem mit entlang ei­ner Mantellinie angeordneten Leimdüsen (6) versehenen Leimzylinder (4), der auf der ihn teilweise umschlingen­den Bahn (2a) abrollt, lassen sich dadurch ein exakter Leimauftrag gewährleisten und eine Verschmutzung der Bahn (2a) verhindern, daß der Umfang des Leimzylinders (4) mittels wenigstens einer ein Wischtuch (10), das vor­zugsweise befeuchtbar ist, enthaltenden Wischeinrichtung (7) abwischbar ist, die im Bereich des Zwickels zwischen dem Leimzylinder (4) und der von diesem ablaufenden Bahn (2a) angeordnet ist.

Figure imgaf001
In the case of a cross-gluing device with a glue cylinder (4) provided with glue nozzles (6) arranged along a surface line, which rolls on the web (2a) that partially wraps around it, this can ensure an exact application of glue and prevent contamination of the web (2a) the circumference of the glue cylinder (4) can be wiped off by means of at least one wiper device (7) containing a wipe (10), which can preferably be moistened, which is arranged in the region of the gusset between the glue cylinder (4) and the web (2a) running from it is.
Figure imgaf001

Description

Die Erfindung betrifft eine Vorrichtung zum Aufbringen eines quer zur Bahnlängsrichtung verlaufenden Leimstrei­fens auf eine Bahn, insbesondere eine bedruckte Papier­bahn, mit einem mit entlang wenigstens einer Mantellinie angeordneten Leimdüsen versehenen Leimzylinder, der auf der ihn vorzugsweise teilweise umschlingenden Bahn ab­rollt.The invention relates to a device for applying a glue strip running transversely to the longitudinal direction of the web on a web, in particular a printed paper web, with a glue cylinder provided with glue nozzles arranged along at least one surface line, which rolls on the web, which preferably wraps partially around it.

Die Erfahrung hat gezeigt, daß es beim Abziehen der Bahn vom Leimzylinder zu einer Teilung der vorhandenen Leim­punkte kommt, wobei ein Teil als Leimauftrag auf der Bahn verbleibt, ein anderer Teil am Rand der Düsenöff­nungen zurückbleibt und ein weiterer Teil in Form klei­ner Tröpfchen abgeschleudert wird. Es besteht daher die Gefahr, daß es zu Leimauftragfehlern und dementsprechend zu Ausschußproduktion kommen kann. Dies ist in erster Linie darauf zurückzuführen, daß sich auf dem Leimzylin­der die Düsenöffnungen umfassende Leimpfützen bilden, die einen unexakten, schlierenhaften Leimauftrag erge­ben, und daß die abspritzenden Leimtropfen, die mit zu­nehmendem Leimaufbau auf dem Leimzylinder immer größer werden, die Bahn und/oder den Leimzylinder verschmutzen. Hinzu kommt, daß der Leimauftrag eine gewisse Zeit er­fordert und daß deshalb die Bahn verhältnismäßig lange in Kontakt mit dem Leimzylinder gehalten werden muß, was im Falle einer frisch bedruckten Bahn dazu führen kann, daß Farbe auf dem Leimzylinder abgelegt wird, was zu einer weiteren Verschmutzung des Leimzylinders und dem­entsprechend auch der Bahn führen kann.Experience has shown that when the web is pulled off the glue cylinder, there is a division of the existing glue points, one part remaining on the web as a glue application, another part remaining at the edge of the nozzle openings and another part being thrown off in the form of small droplets. There is therefore a risk that there will be glue application errors and accordingly can lead to scrap production. This is primarily due to the fact that glue pools forming the nozzle openings form on the glue cylinder, which result in an inexact, streaky glue application, and that the spraying glue drops, which become larger and larger with the build-up of glue on the glue cylinder, the web and / or the Contaminate the glue cylinder. In addition, the application of the glue takes a certain amount of time and the web must therefore be kept in contact with the glue cylinder for a relatively long time, which in the case of a freshly printed web can lead to ink being deposited on the glue cylinder, which leads to further contamination of the glue cylinder and, accordingly, the web.

Hiervon ausgehend ist es daher die Aufgabe der vorlie­genden Erfindung, eine Vorrichtung eingangs erwähnter Art mit einfachen und bewährten Mitteln so zu verbes­sern, daß ein exakter Leimauftrag gewährleistet ist und eine Verschmutzung der Bahn unterbleibt.Proceeding from this, it is therefore the object of the present invention to improve a device of the type mentioned at the outset with simple and proven means in such a way that an exact application of glue is ensured and the web is not contaminated.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Umfang des Leimzylinders mittels wenigstens einer ein Wischtuch enthaltenden Wischeinrichtung abwischbar ist, wobei das an den Zylinderumfang andrückbare Wisch­tuch im Anschluß an die Kontaktstelle in den Bereich des Zwickels zwischen dem Leimzylinder und der von diesem ablaufenden Bahn eingreift.This object is achieved in that the circumference of the glue cylinder can be wiped off by means of at least one wiping device containing a wiping cloth, the wiping cloth which can be pressed onto the cylinder circumference engaging in the region of the gusset between the glue cylinder and the web running off therefrom following the contact point.

Mit diesen Maßnahmen werden die eingangs geschilderten Nachteile vollständig beseitigt. Das Wischtuch nimmt nicht nur die Leimrückstände und Farbrückstände vom Leimzylinder ab, wodurch dieser sauber gehalten und ein exakter punktförmiger Leimauftrag gewährleistet werden, sondern fängt auch die abspritzenden Tröpfchen auf, so daß auch eine hierdurch verursachte Verschmutzung von Bahn bzw. Umgebung unterbleibt. Infolge des Saugvermö­gens des Wischtuchs ist zu-dem sichergestellt, daß der von diesem aufgenommene Leim auch bei starker Beauf­schlagung gehalten wird und dennoch ein geringer Tuch­verbrauch gewährleistet ist. Ein weiterer, ganz beson­derer Vorteil der erfindungsgemäßen Maßnahmen ist darin zu sehen, daß das Wischtuch auch die einfache Möglich­keit bietet, den Leimzylinder zu befeuchten, womit nicht nur angetrocknete Leimrückstände aufgelöst werden können, sondern auch einem Ablegen von Farbe auf dem Leimzylin­der von Anfang an entgegen gewirkt werden kann. Gleich­zeitig ergibt sich hierdurch eine Befeuchtung der Bahn, was einen nachfolgenden Falzvorgang erleichtern kann. Außerdem bietet ein befeuchtetes Wischtuch die weitere vorteilhafte Möglichkeit, bei Stillstand des Leimzylin­ders die Öffnungen der Leimdüsen zu verschließen und ein Antrocknen des Leims zu verhindern.With these measures, the disadvantages described at the outset are completely eliminated. The wipe not only removes the glue residues and paint residues Glue cylinder from which this is kept clean and an exact punctiform application of glue is guaranteed, but also catches the spraying droplets, so that the resulting contamination of the web or the surrounding area is also avoided. As a result of the absorbency of the wiping cloth, it is also ensured that the glue absorbed by the wiping cloth is held even when subjected to heavy loads and a low cloth consumption is nevertheless ensured. Another very special advantage of the measures according to the invention can be seen in the fact that the wipe also offers the simple possibility of moistening the glue cylinder, which not only can dissolve dried glue residues, but also prevents paint from being deposited on the glue cylinder from the start can be knitted. At the same time, this results in moistening of the web, which can facilitate a subsequent folding process. In addition, a moistened wipe offers the further advantageous possibility of closing the openings of the glue nozzles when the glue cylinder is at a standstill and preventing the glue from drying.

Zweckmäßig kann das Wischtuch daher mittels einer der Kontaktstelle mit dem Leimzylinder vorgeordneten Be­feuchtungseinrichtung mit Wasser oder dem bei Offsetma­schinen üblichen Feuchtmitteln befeuchtbar sein.The wipe can therefore expediently be moistened with water or the dampening solution customary in offset machines by means of a moistening device arranged upstream of the contact point with the glue cylinder.

Eine weitere zweckmäßige Maßnahme kann darin bestehen, daß das von einer Vorratsrolle ab- und auf eine Speicher­rolle aufwickelbare Wischtuch im Bereich zwischen den Rollen von einem vorzugsweise als aufpump-barer Balg ausgebildeten Andrückorgang hinterfaßt ist, welches vor­zugsweise während des schrittförmigen Transport des Wischtuchs entlastbar ist. Hierdurch ist sichergestellt, daß auf das vorzugsweise gegenläufig zum Leimzylinder transportierbare Wischtuch während des Transports keine Abstreifkräfte übertragen werden, wodurch die Transport­mechanik entlastet wird.A further expedient measure can consist in that the wipe that can be wound up from a supply roll and onto a storage roll in the area between the Rolls of a preferably designed as an inflatable bellows pressing operation, which is preferably relieved during the step-by-step transport of the wipe. This ensures that no wiping forces are transferred to the wiping cloth, which can preferably be transported in the opposite direction to the glue cylinder, during which the transport mechanism is relieved.

In weiterer Fortbildung der übergeordneten Maßnahmen können zwei diametral einander gegenüberliegende Wisch­einrichtungen vorgesehen sein. Diese Maßnahme ermöglicht eine einfache Drehrichtungsumkehr des Leimzylinders, wo­bei jeweils nur eine Wischeinrichtung aktiviert zu sein braucht, in schwierigen Fällen aber beide aktiviert sein können. Hinzu kommt, daß sich hierbei auch bei einem Leimzylinder mit zwei Leimdüsenreihen ein zuverlässiger Verschluß sämtlicher Leimdüsen bei Stillstand ermögli­chen läßt, in dem beide Wischtücher angestellt werden.In a further development of the superordinate measures, two diametrically opposite wiping devices can be provided. This measure enables a simple reversal of the direction of rotation of the glue cylinder, only one wiping device needing to be activated at a time, but both can be activated in difficult cases. In addition, even with a glue cylinder with two rows of glue nozzles, a reliable closure of all glue nozzles can be made possible at a standstill, in which both wipes are put on.

Weitere vorteilhafte Ausgestaltungen und zweckmäßige Fortbildungen ergeben sich aus den restlichen Unteran­sprüchen.Further advantageous refinements and expedient further training result from the remaining subclaims.

Nachstehend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert.An exemplary embodiment of the invention is explained in more detail below with reference to the drawing.

In der Zeichnung zeigen:

  • Figur 1 eine schematische Ansicht einer einem Falz­trichter nachgeordneten Querleimeinrichtung und
  • Figur 2 eine Seitenansicht der zur Querleimein­richtung nach Figur 1 gehörenden Wisch­einrichtung.
The drawing shows:
  • Figure 1 is a schematic view of a transverse gluing device downstream of a former and
  • Figure 2 is a side view of the wiper device belonging to the cross-gluing device according to Figure 1.

Der Figur 1 liegt eine über einen Falztrichter 1 geführ­te Bahn 2 zugrunde, die im Bereich des Falztrichters 1 in zwei parallele Stränge 2a, 2b aufgeteilt wird, welche in Form eines Bahnpakets 2c einem nicht näher dargestell­ten Falzapparat zugeführt werden, wo Bahnabschnitte her­gestellt und diese mit einem Querfalz versehen werden, so daß sich mehrlagige Falzprodukte ergeben. Um eine Heftung der mehrlagigen Falzprodukte zu erübrigen, wer­den die Stränge 2a, 2b im Bereich jeder Querfalzlinie mittels eines quer zu Bahnlängsrichtung verlaufenden Leimstreifens 3 miteinander verleimt.1 is based on a web 2 guided over a former 1, which is divided in the region of the former 1 into two parallel strands 2a, 2b, which are fed in the form of a web package 2c to a folder (not shown), where web sections are produced and these are produced be provided with a cross fold so that multilayer folded products result. In order to dispense with stapling of the multilayer folded products, the strands 2a, 2b are glued to one another in the region of each transverse fold line by means of a glue strip 3 running transversely to the longitudinal direction of the web.

Um die Leimstreifen 3 auf die Innenseite, das heißt die dem jeweils anderen Strang zugewandte Seite eines Strangs, aufbringen zu können, ist im dargestellten Ausführungs­beispiel der Strang 2a in Form einer U-förmigen Schleife geführt, in welcher sich eine Querleimeinrichtung be­findet. Diese besteht aus einem vom zugeordneten Strang 2a auf einem Winkel von mehr als 90° umschlungenen Leim­zylinder 4, der mit einer umfangsseitigen Düsenleiste 5 oder mehreren umfangsseitigen Düsenleisten 5 versehen ist. Diese sind mit entlang einer umfangsseitigen Mantel­linie angeordneten Leimdüsen 6 versehen, die im Um­schlingungsbereich vom Zylinderinnenraum aus mit Leim beaufschlagbar sind. Jede Leimdüse 6 erzeugt dabei einen punktförmigen Leimauftrag, was die quer zur Bahnlängs­ richtung verlaufenden Leimstreifen 3 ergibt. Diese setzen sich praktisch aus mehreren, nebeneinander ange­ordneten Leimpunkten zusammen, die in Figur 1 angedeutet ist.In order to be able to apply the glue strips 3 to the inside, that is to say the side of a strand facing the respective other strand, the strand 2a is guided in the form of a U-shaped loop in the illustrated embodiment, in which a transverse gluing device is located. This consists of a glue cylinder 4 wrapped by the associated strand 2a at an angle of more than 90 °, which is provided with a circumferential nozzle strip 5 or more circumferential nozzle strips 5. These are provided with glue nozzles 6 arranged along a circumferential surface line, which glue can be applied to in the wrapping area from the cylinder interior. Each glue nozzle 6 produces a punctiform glue application, which is transverse to the web direction glue strip 3 results. These are practically composed of several glue points arranged side by side, which is indicated in FIG. 1.

Um den Leimzylinder 4 und seine Umgebung saüber zu hal­ten, ist dem Leimzylinder 4 eine Wischeinrichtung 7 zu­geordnet, die im Bereich des Ablaufs des Strangs 2a vom Leimzylinder 4 angeordnet ist und deren Aufgabe es ist, den Umfang des Leimzylinders 4 abzuwischen und die beim Ablauf des Strangs 2 vom Leimzylinder 4, das heißt bei der Teilung des Leimauftrags abspritzenden Tröpfchen auf­zufangen.In order to keep the glue cylinder 4 and its surroundings clean, the glue cylinder 4 is assigned a wiping device 7, which is arranged in the region of the outlet of the strand 2a from the glue cylinder 4 and whose task is to wipe the circumference of the glue cylinder 4 and which when the Strang 2 of the glue cylinder 4, that is to catch droplets spraying during the division of the glue application.

Die Wischeinrichtung 7 enthält, wie am besten aus Figur 2 erkennbar ist, ein von einer Vorratsrolls 8 abwickel­bares und auf eine Speicherrolle 9 aufwickelbares, aus Vließ bestehendes Wischtuch 10, das im Bereich zwischen der Vorratsrolle 8 und der Speicherrolle 9 an den Umfang des Leimzylinders 4 andrückbar ist. Hierzu ist das Wisch­tuch 10 von einem zwischen der Vorratsrolle 8 und der Speicherrolle 9 angeordneten Andrückorgan 11 hinterfaßt. Dieses ist im dargestellten Ausführungsbeispiel als aufpumpbarer Balg ausgebildet, der im aufgepumpten Zu­stand daS Wischtuch 10 an den Leimzylinder 4 andrückt. Im entlasteten Zustand des Balgs ergibt sich ein leich­ter Abstand zum Leimzylinder 4, so daß das Wischtuch 10 dabei ohne Belastung transportierbar ist. Das Wischtuch 10, das entgegen der Laufrichtung des Leimzylinders 4 transportiert wird, wird schrittweise transportiert.As can best be seen in FIG. 2, the wiping device 7 contains a wiping cloth 10 which can be unwound from a supply roll 8 and wound onto a storage roll 9 and which in the area between the storage roll 8 and the storage roll 9 extends to the circumference of the glue cylinder 4 is pressable. For this purpose, the wiping cloth 10 is gripped by a pressing member 11 arranged between the supply roll 8 and the storage roll 9. In the exemplary embodiment shown, this is designed as an inflatable bellows, which presses the wipe 10 onto the glue cylinder 4 in the inflated state. In the relieved state of the bellows, there is a slight distance from the glue cylinder 4, so that the wipe 10 can be transported without stress. The wipe 10, which is transported against the direction of the glue cylinder 4, is transported step by step.

Hierzu sind die Speicherrolle 9 schrittweise antreibbar und die Vorratsrolle 8 schrittweise entriegelbar. Gleich­zeitig wird das Andrückorgan 11 entlastet.For this purpose, the storage roll 9 can be driven step by step and the supply roll 8 can be unlocked step by step. At the same time, the pressure element 11 is relieved.

Das von Andrückorgan 11 ablaufende Ablauftrumm 10a des Wischtuchs 10 ist ebenso wie der vom Leimzylinder 4 ab­laufende Strang 2a vom Leimzylinder 4 weg, das heißt nach radial außen, geführt, wobei sich das vom Andrückorgan 10 ablaufende Ablauftrumm 10a des Wischtuchs und der vom Leimzylinder 4 ablaufende Bereich des Strangs 2a unter Bildung eines Zwickels gegenüberliegen. Das Ablauftrumm 10a des Wischtuchs ist dabei über die Kante des Andrück­organs 11 und ein über diese Kante in Richtung des nach außen laufenden Strangs 2a vorstehendes Umlenkorgan 12 geführt, bevor es auf die bezogen auf den Leimzylinder 4 radial außerhalb des Andrückorgans 11 angeordnete Sprei­cherrolle 9 aufläuft. Das Umlenkorgan 12 ist im darge­stellten Ausführungsbeispiel einfach als an die Halte­rung des Andrückorgans 11 angeformte Leiste ausgebildet. Im Bereich zwischen dem Andrückorgan 11 und der Spei­cherrolle 9 ergibt sich somit ein in Richtung des Strangs 2a ausgeknickter Verlauf, das heißt ein in den Zwickel zwischen dem Leimzylinder 4 und dem von diesem ablaufen­den Strang 2a eingreifender Verlauf des Ablauftrumms 10a des Wischtuchs. Dieses wischt daher nicht nur Verunrei­nigungen in Form von bei 13 angedeuteten Leimklecksen vom Umfang des Leimzylinders 4 ab, sondern kann auch insbesondere im Bereich des Ablaufs des Strangs 2a vom Leimzylinder 4 tangential abspritzende Leimtröpfchen 14 auffangen. Der in Form eines großen Umschlingungswinkels um den Leimzylinder 4 herumgeführte Strang 2a wird über eine dem Leimzylinder 4 benachbarte Umlenkrolle 15, welche dem Andrückorgan 11 am Umfang des Leimzylinders 4 vorgeordnet ist, von diesem abgezogen.The discharge run 10a of the wiping cloth 10 running from the pressing member 11, like the strand 2a running from the glue cylinder 4, is guided away from the glue cylinder 4, that is to the radially outward direction, the discharge run 10a of the wiping cloth running off the pressing member 10 and the one running off the glue cylinder 4 Area of the strand 2a opposite to form a gusset. The run-off run 10a of the wiping cloth is guided over the edge of the pressing member 11 and a deflecting member 12 projecting over this edge in the direction of the strand 2a running outward, before it runs onto the spreader roller 9 arranged radially outside the pressing member 11 with respect to the glue cylinder 4. In the exemplary embodiment shown, the deflecting element 12 is simply designed as a bar molded onto the holder of the pressing element 11. In the area between the pressing member 11 and the storage roller 9, there is thus a course which is bent in the direction of the strand 2a, that is to say a course of the runout run 10a of the wiping cloth which engages in the gusset between the glue cylinder 4 and the strand 2a running off it. This therefore not only wipes impurities in the form of glue blobs indicated at 13 from the circumference of the glue cylinder 4, but can also collect glue droplets 14 tangentially spraying off from the glue cylinder 4, particularly in the region of the run of the strand 2a. The strand 2a which is guided around the glue cylinder 4 in the form of a large wrap angle is over a deflecting roller 15 adjacent to the glue cylinder 4, which is arranged upstream of the pressure element 11 on the circumference of the glue cylinder 4, is pulled off the latter.

Das Wischtuch 10 ist im dargestellten Ausführungsbeispiel vor seinem Auflauf auf das zugeordnete Andrückorgan 11 und dementsprechend vor der Kontaktstelle mit dem Leim­zylinder 4 mit Wasser oder einem bei Offsetmaschinen üb­lichen Feuchtmittel befeuchtbar. Hierzu ist ein das Wischtuch 10 im Bereich zwischen der Vorratsrolle 8 und dem Andrückorgan 11 hintergreifender Düsenbalken 16 vor­gesehen, der mit mehreren, über seiner Länge verteilten Sprühdüsen 17 versehen ist. Die Düsen 17 sind im darge­stellten Ausführungsbeispiel mit einem im Düsenbalken 16 vorgesehenen Sammelraum verbunden, der mit Flüssigkeit gefüllt und zur Befeuchtung des Wischtuchs 10 an eine Druckluftquelle angeschlossen wird, wobei die vorhande­ne Flüssigkeitsfüllung über die Düsen 17 ausgeblasen wird. Die Düsen 17 sind in den Zwickel zwischen dem An­drückorgan 11 und dem auf dieses auflaufenden Wischtuch 10 gerichtet, so daß auch eine Nachführung von Feucht­mittel während des Wischvorgangs möglich ist. überlich­weise erfolgt die Befeuchtung des Wischtuchs während oder kurz vor einem Transportschritt. Zwischen zwei Transportschritten ist nur in besonderen Fällen eine weitere Feuchtmittelzufuhr erforderlich. Um das Feucht­mittel gezielt dem Wischtuch 10 zuzuführen, sind die Düsen 17 von einem Schutzblech 18 unterfaßt, das eine etwa oberhalb der Kontaktstelle zwischen Leimzylinder 4 und Andrückorgan 11 sich befindende Tropfkante aufweist.In the exemplary embodiment shown, the wiping cloth 10 can be moistened with water or a dampening solution customary in offset machines prior to its emergence on the associated pressing member 11 and accordingly before the contact point with the glue cylinder 4. For this purpose, a wiping cloth 10 in the area between the supply roll 8 and the pressing member 11 engaging behind the nozzle bar 16 is provided, which is provided with a plurality of spray nozzles 17 distributed over its length. In the exemplary embodiment shown, the nozzles 17 are connected to a collecting space provided in the nozzle bar 16, which is filled with liquid and is connected to a compressed air source for moistening the wipe 10, the existing liquid filling being blown out via the nozzles 17. The nozzles 17 are directed into the gusset between the pressing member 11 and the wiping cloth 10 running onto it, so that it is also possible to track the dampening solution during the wiping process. Usually, the wipe is moistened during or shortly before a transport step. A further dampening solution supply is only required between two transport steps in special cases. In order to selectively supply the dampening solution to the wipe 10, the nozzles 17 are covered by a protective plate 18 which has a drip edge located approximately above the contact point between the glue cylinder 4 and the pressing member 11.

Die Befeuchtung des Wischtuchs 10 ergibt nicht nur einen besonders guten Reinigungseffekt, sondern erzeugt gleich­zeitig auch einen Feuchtigkeitsfilm auf dem Leimzylinder 4, wodurch dem Ablegen von Farbe entgegengewirkt wird und gleichzeitig eine Befeuchtung des Strangs 2a als Falzhilfe erreicht wird.The moistening of the wipe 10 not only produces a particularly good cleaning effect, but at the same time also produces a moisture film on the glue cylinder 4, which counteracts the depositing of paint and at the same time moistens the strand 2a as a folding aid.

Die Vorratsrolle 8 wird durch einen Kaster 19 abgetastet, der bei zu Ende gehendem Tuchvorrat ein Signal auslöst. Infolge des nur schrittweise erfolgenden Tuchvorschubs werden jedoch mit einem Wischtuch hohe Standzeiten er­reicht. Die zur Bewerkstelligung des Tuchvorschubs vor­gesehene Antriebseinrichtung kann automatisch getaktet und zusätzlich von Hand aktivierbar sein. Dasselbe gilt für die Befeuchtungseinrichtung.The supply roll 8 is scanned by a box 19 which triggers a signal when the cloth supply runs out. As a result of the only gradual cloth advance, long service lives are achieved with a wipe. The drive device provided for the fabric feed can be clocked automatically and can also be activated by hand. The same applies to the humidifier.

Claims (8)

1. Vorrichtung zum Aufbringen eines quer zur Bahnlängs­richtung verlaufenden Leimstreifens auf eine Bahn, insbesondere eine bedruckte Papierbahn, mit einem mit entlang wenigstens einer Mantellinie angeordneten Leimdüsen (6) versehenen Leimzylinder (4), der auf der ihn vorzugsweise teilweise umschlingenden Bahn abrollt, dadurch gekennzeichnet, daß der Umfang des Leimzylinders (4) mittels wenigstens einer ein Wisch­tuch (10) enthaltenden Wischeinrichtung (7) abwisch­bar ist, wobei das an den Zylinderumfang andrückbare Wischtuch (10) im Anschluß an die Kontaktstelle in den Bereich des Zwickels zwischen dem Leimzylinder (4) und der von diesem ablaufenden Bahn (2a) ein­greift.1. Device for applying a glue strip running transversely to the longitudinal direction of the web on a web, in particular a printed paper web, with a glue cylinder (4) provided with glue nozzles (6) arranged along at least one surface line, which rolls on the web that preferably partially wraps around it that the circumference of the glue cylinder (4) can be wiped off by means of at least one wiper device (7) containing a wipe (10), the wipe (10) which can be pressed onto the cylinder circumference following the contact point in the area of the gusset between the glue cylinder (4 ) and the web (2a) running off this engages. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Wischtuch (10) mittels einer der Kontakt­stelle vorgeordneten Befeuchtungseinrichtung (16, 17), die vorzugsweise einen Wasseranschluß aufweist, be­feuchtbar ist.2. Apparatus according to claim 1, characterized in that the wipe (10) by means of a humidification device (16, 17) upstream of the contact point, which preferably has a water connection, can be moistened. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Befeuchtungseinrichtung einen Düsenbalken (16) mit über die Breite des Wischtuchs (10) verteilten Sprühdüsen (17) aufweist.3. Apparatus according to claim 2, characterized in that the moistening device has a nozzle bar (16) with spray nozzles (17) distributed over the width of the wipe (10). 4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das vorzugsweise von ei­ner Vorratsrolle (8) ab- und auf eine Speicherrolle (9) aufwickelbare Wischtuch (10) schrittweise trans­portierbar und/oder sporadisch befeuchtbar ist.4. Device according to one of the preceding claims, characterized in that the preferably from a supply roll (8) and on a storage roll (9) windable wipe (10) can be transported step by step and / or sporadically moistened. 5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Wischtuch (10) von einem vorzugsweise als aufpumpbarer Balg ausgebildeten Andrückorgan (11) hinterfaßt und beim Transport vor­zugsweise entlastbar ist.5. Device according to one of the preceding claims, characterized in that the wiping cloth (10) from a pressure member (11) preferably formed as an inflatable bellows behind and is preferably relieved during transport. 6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das vom Leimzylinder (4) ablaufende Wischtuch (10) und die vom Leimzylinder (4) ablaufende Bahn (2a) über am Umfang des Leimzylin­ders (4) einander benachbarte Umlenkorgane (12 bzw. 15) vom Leimzylinder (4) weggeführt sind.6. Device according to one of the preceding claims, characterized in that the wiping cloth (10) running from the glue cylinder (4) and the web (2a) running from the glue cylinder (4) over the circumference of the glue cylinder (4) adjacent deflection members (12 or 15) are guided away from the glue cylinder (4). 7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bahn (2a) über eine dem Leimzylinder (4) benachbarte Umlenkrolle (15), der in Drehrichtung des Leimzylinders (4) die Wisch­einrichtung (7) folgt, vom Leimzylinder (4) abläuft.7. Device according to one of the preceding claims, characterized in that the web (2a) via a glue cylinder (4) adjacent deflection roller (15) which follows the wiping device (7) in the direction of rotation of the glue cylinder (4) from the glue cylinder (4th ) expires. 8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß vorzugsweise bei einem Leimzylinder (4) mit zwei einander diametral gegenüber­ liegenden Leimdüsenreihen zwei einander diametral ge­genüberliegende Wischeinrichtungen (7) vorgesehen sind, von denen jeweils eine zum Abwischen des Leim­zylinders (4) aktivierbar ist und die bei Stillstand des Leimzylinders (4) beide an diesen im Bereich ei­ner jeweils zugeordneten Leimdüsenreihe anstellbar sind.8. Device according to one of the preceding claims, characterized in that preferably in a glue cylinder (4) with two diametrically opposite one another lying rows of glue nozzles two diametrically opposed wiping devices (7) are provided, one of which can be activated for wiping the glue cylinder (4) and both of which can be adjusted on the glue cylinder (4) in the area of a respectively assigned glue nozzle row when the glue cylinder (4) is at a standstill.
EP89120875A 1988-11-15 1989-11-10 Device for applying an adhesive strip Expired - Lifetime EP0369348B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89120875T ATE93170T1 (en) 1988-11-15 1989-11-10 DEVICE FOR APPLYING A STRIP OF GLUE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838721 1988-11-15
DE3838721A DE3838721C2 (en) 1988-11-15 1988-11-15 Device for applying a strip of glue

Publications (3)

Publication Number Publication Date
EP0369348A2 true EP0369348A2 (en) 1990-05-23
EP0369348A3 EP0369348A3 (en) 1991-01-23
EP0369348B1 EP0369348B1 (en) 1993-08-18

Family

ID=6367239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120875A Expired - Lifetime EP0369348B1 (en) 1988-11-15 1989-11-10 Device for applying an adhesive strip

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EP (1) EP0369348B1 (en)
JP (1) JPH02182770A (en)
AT (1) ATE93170T1 (en)
DE (2) DE3838721C2 (en)
ES (1) ES2042942T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115609488A (en) * 2022-11-28 2023-01-17 浙江盾源聚芯半导体科技有限公司 A kind of silicon part cleaning equipment and cleaning process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113695179B (en) * 2021-07-12 2022-09-30 深圳市欣代光电有限公司 LED packaging device

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Publication number Priority date Publication date Assignee Title
DE1075933B (en) * 1952-12-18 1960-02-18 Dr William M Scholl Device for locally, pattern-wise application of adhesive compounds on webs of paper, fabric, felt, plastic films and the like. like
GB1080073A (en) * 1963-02-08 1967-08-23 James Vincent Bailey Improvements in or relating to wiping systems for printing cylinders
US4344361A (en) * 1979-04-19 1982-08-17 Baldwin-Gegenheimer Corporation Automatic blanket cylinder cleaner
DE3207620C2 (en) * 1982-03-03 1985-07-25 Albert-Frankenthal Ag, 6710 Frankenthal Device for applying a strip of glue to a moving material web
DE3222335C2 (en) * 1982-06-14 1985-01-03 Planatolwerk W. Hesselmann, Chemische und Maschinenfabrik für Klebetechnik, GmbH & Co KG, 8201 Rohrdorf Device for applying an adhesive in the form of transverse gluing onto a web
DE3527660A1 (en) * 1985-08-01 1987-02-12 Hesselmann Planatolwerk H Method and device for producing multiple-page, folded and bonded layers of sheets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115609488A (en) * 2022-11-28 2023-01-17 浙江盾源聚芯半导体科技有限公司 A kind of silicon part cleaning equipment and cleaning process

Also Published As

Publication number Publication date
DE3838721A1 (en) 1990-05-17
JPH02182770A (en) 1990-07-17
ES2042942T3 (en) 1993-12-16
EP0369348A3 (en) 1991-01-23
ATE93170T1 (en) 1993-09-15
EP0369348B1 (en) 1993-08-18
DE58905319D1 (en) 1993-09-23
DE3838721C2 (en) 1996-01-18

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