EP1481793A2 - Method and glueing device for continuously applying an adhesive on webs - Google Patents

Method and glueing device for continuously applying an adhesive on webs Download PDF

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Publication number
EP1481793A2
EP1481793A2 EP04011605A EP04011605A EP1481793A2 EP 1481793 A2 EP1481793 A2 EP 1481793A2 EP 04011605 A EP04011605 A EP 04011605A EP 04011605 A EP04011605 A EP 04011605A EP 1481793 A2 EP1481793 A2 EP 1481793A2
Authority
EP
European Patent Office
Prior art keywords
glue
gap
metering
roller
width
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Withdrawn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
EP04011605A
Other languages
German (de)
French (fr)
Other versions
EP1481793A3 (en
Inventor
Edmund Bradatsch
Hans Mosbuger
Markus Fischer
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.)
BHS Corrugated Maschinen und Anlagenbau GmbH
Original Assignee
BHS Corrugated Maschinen und Anlagenbau 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
Application filed by BHS Corrugated Maschinen und Anlagenbau GmbH filed Critical BHS Corrugated Maschinen und Anlagenbau GmbH
Publication of EP1481793A2 publication Critical patent/EP1481793A2/en
Publication of EP1481793A3 publication Critical patent/EP1481793A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B05C1/0826—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 work being a web or sheets
    • B05C1/0834—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 work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2818—Glue application specially adapted therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact

Definitions

  • the invention relates to a method for the continuous gluing of Webs, especially the corrugated cardboard webs and a Glue unit to carry out the process.
  • Such so-called one-sided Corrugated cardboard webs consist of a corrugated paper web and one this one-sided covering sheet.
  • the process and the gluing unit According to the invention are used in particular to glue the cover sheet facing away wave heads of the corrugated paper web, which subsequently in a so-called heating section with another cover sheet or another one-sided corrugated cardboard is glued.
  • Such a gluing unit known from EP 0 179 395 A1 has an in a frame-mounted glue applicator roller with its lower one Immerse the area in a glue pan. About in a horizontal plane a glue squeeze roller is provided with the axis of the glue application roller, which are arranged above the glue level above the glue pan is.
  • the glue consumption here is relatively large because of the dosage of the glue and the thickness of the glue layer on the glue application roller only can be set very imprecisely.
  • DE-OS 1 436 896 is a comparable one Glue unit known.
  • DE 40 18 426 C2 describes a gluing unit for a device for production a one-sided coated corrugated web known Glue application roller and a glue squeeze roller are provided. through The glue application roller will apply glue to the shaft heads one on one Corrugated paper lying corrugated paper web applied. It is one Glue feed trough provided, which is open to the glue application roller. The glue is passed through a glue squeeze gap between the rollers pulled down and the one on the corrugated roller corrugated paper web fed. Even with this glue unit the thickness of the glue film produced on the glue application roller does not change set exactly; the glue consumption is therefore relatively high.
  • the invention has for its object a method and a gluing unit to create the very small and precisely adjustable Mark glue consumption.
  • This task is carried out in a method of the aforementioned general Genus according to the invention by the features of claim 1 solved. Furthermore, it is used in a gluing unit of the type mentioned general genus solved by the features of claim 14. in the Glue pre-metering gap becomes the thickness of the glue film on the glue application roller already specified. The glue film is through the glue metering roller replenished and evened. This is a very accurate one Dosage of the glue possible.
  • the glue mirror is located only a small amount below the glue pre-metering gap, so that the influence of gravity on the conveyed through the glue pre-metering gap Glue is very low.
  • the glue mechanism shown in FIGS. 1 to 3 has a frame 1 which a lower base plate 2 and two parallel side walls 3, 4 has.
  • a glue application roller 5 rotatably supported in bearings 6. She is around her by means of a motor 7 Central longitudinal axis 8 can be driven in rotation.
  • the application roller 5 has a screened Surface on, i.e. are closely adjacent in their surface tiny cups, i.e. tiny recesses 9, formed the are indicated in Fig. 2 greatly enlarged.
  • Below the application roller 5 a lower glue pre-metering roller 10 is arranged, which is also in the Side walls 3, 4 of the frame 1 in bearings designed as sliding bearings 10a is rotatably mounted about its central longitudinal axis 11. It is by means of a Motors 10b drivable.
  • the two axes 8, 11 are essentially in a common vertical plane.
  • a glue metering roller serving glue squeeze roller 12 in also as Sliding bearings trained bearings 13 which are mounted by means of a motor 14 can be driven in rotation about its central longitudinal axis 15. Axes 8, 15 lie in a common horizontal plane.
  • a press or pressure roller 16 free rotatably supported in a movable bracket, not shown, the in turn is mounted in the side walls 3, 4 of the frame 1.
  • a one-sided corrugated cardboard web 17 out.
  • This corrugated cardboard web 17 thus has a corrugated paper web 18 and one this one-sided covering and glued with it cover sheet 19 also from paper on.
  • the corrugated cardboard web 17 becomes such in the transport direction 20 passed over the press or pressure roller 16 that the cover sheet 19 against the press or pressure roller 16 abuts and the exposed shaft heads 21 of the corrugated paper web 18 rest against the application roller 5.
  • the press or pressure roller 16 is - based on the transport direction 20 - a guide roller 22 upstream and a deflection roller 23 or a deflection pipe arranged downstream.
  • the application roller 5 is driven in a direction of rotation 24, which the Transport direction 20 of the corrugated cardboard web 17 at the contact point between Corrugated cardboard web 17 and applicator roller 5 corresponds.
  • the drive speed is such that it is identical to the transport speed of the Corrugated cardboard web 17, so that it is slip-free compared to it.
  • the applicator roller 5 with a larger or smaller peripheral speed than the transport speed of the one-sided corrugated cardboard web 17 to influence the glue application.
  • the glue pre-metering roller 10 rotates in the opposite direction of rotation 24 25, since the application roller 5 and the pre-metering roller 10 in the through them limited glue pre-metering gap 26 the same direction of movement exhibit.
  • the squeeze roller 12 is 27 in the same direction as the direction of rotation 24 of the application roller 5 driven, so that the application roller 5 and the squeeze roller 12 on the bounded by it, as Glue-Nachdosier-gap serving glue squeeze gap 28 opposite to each other Have directions of movement.
  • the glue overflow 30 thus forms a device to maintain the glue level 31 at a constant level.
  • the Inlet pan 29 lies with its bottom 32 and its side walls 33, 34 close to the glue pre-metering roller 10, so that the glue in the area of Inlet pan 29 is directly against the pre-metering roller 10, as shown in FIG. 1 can be clearly seen.
  • a glue drain pan 35 On the side facing away from the glue feed trough 29, ie below the Squeeze roller 12, a glue drain pan 35 is arranged, the bottom 36 and side walls 37, 38 also tight against the pre-metering roller 10 concerns.
  • the drain pan 35 also has a glue overflow 39, which is lower than the glue overflow 30. Due to the height of this glue overflow 39 the glue level 40 is defined in the drain pan 35.
  • On the drain pan 35 are two adjustable in the direction of the axis 15 Scraper 41, 42 attached, which abut against the applicator roller 5, and in relation to the direction of rotation 24, 25 in the gap 26 behind the gap 26. They strip glue on the application roller 5 over a width from a few centimeters, for example five centimeters.
  • the wipers 41, 42 are set so that on the side edges of the corrugated cardboard web 17 no or only a reduced gluing of the wave heads 21 of the corrugated paper web 18 takes place.
  • the lower glue pre-metering roller 10 can be adjusted in the vertical plane formed by the axes 8, 11 in the vertical adjustment direction 44 relative to the application roller 5 by means of the adjustable bearings 10a designed as a sliding bearing so that the glue pre-metering gap 26 has a gap width of 0.15 to 0.85 millimeters. Due to the horizontal adjustability of the squeeze roller 12 relative to the application roller 5 in the plane formed by the axes 8, 15, that is to say in the horizontal adjustment direction 45, the glue squeeze gap 28 can be set with a width of 0.1 to 0.8 millimeters become.
  • the speeds of the application roller 5 and the squeeze roller 12 can be set so that the following applies to the ratio of the peripheral speed v 5 of the application roller 5 to the peripheral speed v 12 of the squeeze roller 12 in the squeeze nip 28: 1.0 v v 5 / v 12 4 4 , 0th
  • the measures described can achieve glue-film thicknesses on the application roller 5, which range from 0 to 0.4 millimeters. A film thickness of 0 millimeters is present if there is glue only in the depressions 9, that is to say in the wells of the grid.
  • the glue is fed to the glue feed pan 29 by means of a pump 46 Storage container 47 supplied. In this reservoir 47 flows also the glue back, which in each case via the glue overflow 30 or Glue overflow 39 has expired.
  • a device can also be used as a device for keeping the glue level 37 constant Measuring device can be provided which measures the height of the glue level 31 and controls the pump 46 so that it is kept constant. On Glue overflow 30 would not be necessary in this case.
  • FIG. 4 differs from that according to FIG. 1 to 3 only in that so-called instead of a press or pressure roller Pressure shoes 48 are provided, by means of which the corrugated cardboard web 17 is pressed resiliently against the application roller 5.
  • FIGS. 4 differs from that of FIGS. 4 in that instead of a glue feed pan and a glue drain pan a single glue tub 49 is provided into which the glue pre-metering roller 10 dips.
  • FIG. 6 only shows the gluing unit without pressing or pressure roller or without pressure shoes.
  • side seals 50, 51 of the glue inlet tub 29 or the glue outlet tub 35 shown which bear resiliently against the glue pre-metering roller 10.
  • the floors 32 and 36 of the glue inlet pan 29 and the glue drain pan 35 are as scrapers 52 and 53 on the surface of the pre-metering roller 10 on.
  • a glue unit of the type described is in front of a so-called heating section attached in which the one-sided corrugated sheet 17 with another such Corrugated cardboard and / or another cover sheet coated becomes.
  • Such arrangements are known for example from EP 0 179 395 A.
  • the mode of operation is as follows:
  • the glue is removed from the glue feed pan 29 by the pre-metering roller 10 taken in the direction of rotation 25 and in the glue pre-metering gap 26th predosed, since part of the feed to the pre-metering gap 26 is already here Amount of glue is dissipated.
  • the one in the glue pre-metering gap 26 on the glue application roller 5 transferred glue is from the glue application roller 5 in whose direction of rotation 24 transported and in the glue squeeze gap 28 replenished, d. H. calibrated, i.e. precisely adjusted in thickness. in this connection excess glue is removed for the second time.
  • the glue pre-metering gap 26 should always be a bit have a larger gap width than the glue squeeze gap 28, the The gap width difference can be in the range of approximately 0.05 to 0.1 mm.
  • scrapers 41, 42 are used to a large extent glue-free surface area generated on the applicator roller 5.
  • glue is transferred to the shaft heads 21 of the corrugated paper web 18.
  • the lower glue pre-metering roller 10 can be very small Peripheral speed of, for example, 20 m / min with all gap and turn speed settings of the type described. in principle the peripheral speed of the pre-metering roller 10 can be arbitrary.
  • the glue pre-metering gap 26 is always sufficient Glue filled. Because of this possible low peripheral speed the glue pre-metering roller 10 is in turn reached that the glue level 31 remains very calm in the glue inlet tub 29. This will a glue consumption measurement facilitates and can be very precise.
  • the glue squeeze roller 12 is cleaned by the scraper 43.
  • the glue-free strips produced by the wipers 41, 42 on the application roller 5 is a dry running of the application roller 5 outside of the width the corrugated cardboard web 17 avoided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Making Paper Articles (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

Process for continuous gluing of webs, especially the top of the corrugations (21) of corrugated cardboard webs (17), comprises transporting glue from a glue reservoir into a first dosing gap (26), dosing the glue into a second dosing gap (28) arranged downstream of the first dosing gap, and applying the glue onto the web. An independent claim is also included for a gluing device for carrying out the above process. Preferred Features: The glue is applied by squeezing.

Description

Die Erfindung betrifft ein Verfahren zum fortlaufenden Beleimen von Bahnen, insbesondere der Wellenköpfe von Wellpappebahnen und ein Leimwerk zur Durchführung des Verfahrens. Derartige sogenannte einseitige Wellpappebahnen bestehen aus einer gewellten Papierbahn und einer diese einseitig abdeckenden Deckbahn. Das Verfahren und das Leimwerk nach der Erfindung dienen insbesondere zur Beleimung der der Deckbahn abgewandten Wellenköpfe der gewellten Papierbahn, die anschließend in einer sogenannten Heizpartie mit einer weiteren Deckbahn oder einer weiteren einseitigen Wellpappebahn verleimt wird.The invention relates to a method for the continuous gluing of Webs, especially the corrugated cardboard webs and a Glue unit to carry out the process. Such so-called one-sided Corrugated cardboard webs consist of a corrugated paper web and one this one-sided covering sheet. The process and the gluing unit According to the invention are used in particular to glue the cover sheet facing away wave heads of the corrugated paper web, which subsequently in a so-called heating section with another cover sheet or another one-sided corrugated cardboard is glued.

Ein derartiges aus der EP 0 179 395 A1 bekanntes Leimwerk weist eine in einem Gestell gelagerte Leim-Auftragswalze auf, die mit ihrem unteren Bereich in eine Leimwanne eintaucht. Etwa in einer horizontalen Ebene mit der Achse der Leim-Auftragswalze ist eine Leim-Abquetschwalze vorgesehen, die oberhalb des Leim-Spiegels über der Leimwanne angeordnet ist. Der Leimverbrauch ist hierbei verhältnismäßig groß, da die Dosierung des Leims und die Dicke der Leimschicht auf der Leim-Auftragswalze nur sehr ungenau einstellbar ist. Aus der DE-OS 1 436 896 ist ein vergleichbares Leimwerk bekannt.Such a gluing unit known from EP 0 179 395 A1 has an in a frame-mounted glue applicator roller with its lower one Immerse the area in a glue pan. About in a horizontal plane a glue squeeze roller is provided with the axis of the glue application roller, which are arranged above the glue level above the glue pan is. The glue consumption here is relatively large because of the dosage of the glue and the thickness of the glue layer on the glue application roller only can be set very imprecisely. DE-OS 1 436 896 is a comparable one Glue unit known.

Aus der DE 40 18 426 C2 ist ein Leimwerk für eine Vorrichtung zur Herstellung einer einseitig beschichteten Wellpappebahn bekannt, bei der eine Leim-Auftragswalze und eine Leim-Abquetschwalze vorgesehen sind. Mittels der Leim-Auftragswalze wird Leim auf die Wellenköpfe einer auf einer Riffelwalze liegenden gewellten Papierbahn aufgetragen. Es ist eine Leim-Zulaufwanne vorgesehen, die zur Leim-Auftragswalze hin offen ist. Der Leim wird durch einen zwischen den Walzen befindlichen Leim-Abquetsch-Spalt nach unten abgezogen und der auf der Riffelwalze befindlichen gewellten Papierbahn zugeführt. Auch bei diesem Leimwerk lässt sich die Dicke des auf der Leim-Auftragswalze erzeugten Leimfilms nicht genau einstellen; der Leimverbrauch ist daher verhältnismäßig hoch.DE 40 18 426 C2 describes a gluing unit for a device for production a one-sided coated corrugated web known Glue application roller and a glue squeeze roller are provided. through The glue application roller will apply glue to the shaft heads one on one Corrugated paper lying corrugated paper web applied. It is one Glue feed trough provided, which is open to the glue application roller. The glue is passed through a glue squeeze gap between the rollers pulled down and the one on the corrugated roller corrugated paper web fed. Even with this glue unit the thickness of the glue film produced on the glue application roller does not change set exactly; the glue consumption is therefore relatively high.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und ein Leimwerk zu schaffen, die sich durch sehr geringen und genau einstellbaren Leimverbrauch auszeichnen.The invention has for its object a method and a gluing unit to create the very small and precisely adjustable Mark glue consumption.

Diese Aufgabe wird bei einem Verfahren der eingangs genannten allgemeinen Gattung erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst. Weiterhin wird sie bei einem Leimwerk der eingangs genannten allgemeinen Gattung durch die Merkmale des Anspruches 14 gelöst. Im Leim-Vordosier-Spalt wird die Dicke des Leimfilms auf der Leim-Auftragswalze bereits genau vorgegeben. Der Leimfilm wird durch die Leim-Nachdosierwalze nachdosiert und vergleichmäßigt. Damit ist eine sehr genaue Dosierung des Leims möglich.This task is carried out in a method of the aforementioned general Genus according to the invention by the features of claim 1 solved. Furthermore, it is used in a gluing unit of the type mentioned general genus solved by the features of claim 14. in the Glue pre-metering gap becomes the thickness of the glue film on the glue application roller already specified. The glue film is through the glue metering roller replenished and evened. This is a very accurate one Dosage of the glue possible.

Gemäß einer vorteilhaften Ausgestaltung befindet sich der Leim-Spiegel nur um ein geringes Maß unterhalb des Leim-Vordosier-Spaltes, so dass der Einfluss der Schwerkraft auf den durch den Leim-Vordosier-Spalt geförderten Leim sehr gering ist.According to an advantageous embodiment, the glue mirror is located only a small amount below the glue pre-metering gap, so that the influence of gravity on the conveyed through the glue pre-metering gap Glue is very low.

Die Unteransprüche geben zahlreiche vorteilhafte Ausgestaltungen wieder.The sub-claims reflect numerous advantageous refinements.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung zweier Ausführungsbeispiele anhand der Zeichnung. Further advantages, features and details of the invention result based on the following description of two exemplary embodiments the drawing.

Es zeigt

Fig. 1
eine Seitenansicht einer ersten Ausführungsform eines Leimwerks mit einer abgenommenen Seitenwand in schematischer Darstellung,
Fig. 2
eine Teil-Draufsicht auf das Leimwerk entsprechend dem Sichtpfeil II in Fig. 1,
Fig. 3
eine Teil-Längsansicht des Leimwerks entsprechend dem Sichtpfeil III in Fig. 1,
Fig. 4
eine zweite Ausführungsform eines Leimwerks in einer Ansicht entsprechend Fig. 1,
Fig. 5
eine dritte Ausführungsform eines Leimwerks in einer Ansicht entsprechend Fig. 1 und
Fig. 6
eine vierte Ausführungsform eines Leimwerks in einer Ansicht entsprechend Fig. 1.
It shows
Fig. 1
2 shows a side view of a first embodiment of a glue unit with a removed side wall in a schematic illustration,
Fig. 2
2 shows a partial top view of the gluing unit according to the arrow II in FIG. 1,
Fig. 3
FIG. 2 shows a partial longitudinal view of the gluing unit according to the arrow III in FIG. 1,
Fig. 4
2 shows a second embodiment of a glue unit in a view corresponding to FIG. 1,
Fig. 5
a third embodiment of a glue unit in a view corresponding to FIGS. 1 and
Fig. 6
A fourth embodiment of a glue unit in a view corresponding to FIG. 1st

Das in den Fig. 1 bis 3 dargestellte Leimwerk weist ein Gestell 1 auf, das eine untere Grundplatte 2 und zwei parallel zueinander angeordnete Seitenwände 3, 4 aufweist. In den Seitenwänden 3, 4 ist eine Leim-Auftragswalze 5 in Lagern 6 drehbar gelagert. Sie ist mittels eines Motors 7 um ihre Mittel-Längs-Achse 8 drehantreibbar. Die Auftragswalze 5 weist eine gerasterte Oberfläche auf, d.h. in ihrer Oberfläche sind dicht zueinander benachbart winzige Näpfchen, d.h. winzige Vertiefungen 9, ausgebildet, die in Fig. 2 stark vergrößert angedeutet sind. Unterhalb der Auftragswalze 5 ist eine untere Leim-Vordosierwalze 10 angeordnet, die ebenfalls in den Seitenwänden 3, 4 des Gestells 1 in als Schiebelagern ausgebildeten Lagern 10a um ihre Mittel-Längs-Achse 11 drehbar gelagert ist. Sie ist mittels eines Motors 10b drehantreibbar. Die beiden Achsen 8, 11 liegen im wesentlichen in einer gemeinsamen vertikalen Ebene.The glue mechanism shown in FIGS. 1 to 3 has a frame 1 which a lower base plate 2 and two parallel side walls 3, 4 has. In the side walls 3, 4 there is a glue application roller 5 rotatably supported in bearings 6. She is around her by means of a motor 7 Central longitudinal axis 8 can be driven in rotation. The application roller 5 has a screened Surface on, i.e. are closely adjacent in their surface tiny cups, i.e. tiny recesses 9, formed the are indicated in Fig. 2 greatly enlarged. Below the application roller 5 a lower glue pre-metering roller 10 is arranged, which is also in the Side walls 3, 4 of the frame 1 in bearings designed as sliding bearings 10a is rotatably mounted about its central longitudinal axis 11. It is by means of a Motors 10b drivable. The two axes 8, 11 are essentially in a common vertical plane.

Weiterhin ist in den Seitenwänden 3, 4 des Gestells 1 eine als Leim-Nachdosierwalze dienende Leim-Abquetschwalze 12 in ebenfalls als Schiebelager ausgebildeten Lagern 13 gelagert, die mittels eines Motors 14 um ihre Mittel-Längs-Achse 15 drehantreibbar ist. Die Achsen 8, 15 liegen in einer gemeinsamen horizontalen Ebene. Auf der der Abquetschwalze 12 abgewandten Seite ist eine Press- oder Andrückwalze 16 frei drehbar in einer nicht dargestellten beweglichen Halterung gelagert, die wiederum in den Seitenwänden 3, 4 des Gestells 1 gelagert ist. Um die Press- oder Andrückwalze 16 ist eine einseitige Wellpappebahn 17 geführt. Diese Wellpappebahn 17 weist also eine gewellte Papierbahn 18 und eine diese einseitig abdeckende und mit ihr verleimte Deckbahn 19 ebenfalls aus Papier auf. Die Wellpappebahn 17 wird in Transportrichtung 20 derart über die Press- oder Andrückwalze 16 geführt, dass die Deckbahn 19 gegen die Press- oder Andrückwalze 16 anliegt und die freiliegenden Wellenköpfe 21 der gewellten Papierbahn 18 gegen die Auftragswalze 5 anliegen. Der Press- oder Andrückwalze 16 ist - bezogen auf die Transportrichtung 20 - eine Leitwalze 22 vorgeordnet und eine Umlenkwalze 23 oder ein Umlenkrohr nachgeordnet.Furthermore, in the side walls 3, 4 of the frame 1 is a glue metering roller serving glue squeeze roller 12 in also as Sliding bearings trained bearings 13 which are mounted by means of a motor 14 can be driven in rotation about its central longitudinal axis 15. Axes 8, 15 lie in a common horizontal plane. On the squeeze roller 12 opposite side is a press or pressure roller 16 free rotatably supported in a movable bracket, not shown, the in turn is mounted in the side walls 3, 4 of the frame 1. To the Press or pressure roller 16 is a one-sided corrugated cardboard web 17 out. This corrugated cardboard web 17 thus has a corrugated paper web 18 and one this one-sided covering and glued with it cover sheet 19 also from paper on. The corrugated cardboard web 17 becomes such in the transport direction 20 passed over the press or pressure roller 16 that the cover sheet 19 against the press or pressure roller 16 abuts and the exposed shaft heads 21 of the corrugated paper web 18 rest against the application roller 5. The press or pressure roller 16 is - based on the transport direction 20 - a guide roller 22 upstream and a deflection roller 23 or a deflection pipe arranged downstream.

Die Auftragswalze 5 wird in einer Drehrichtung 24 angetrieben, die der Transportrichtung 20 der Wellpappebahn 17 an der Anlagestelle zwischen Wellpappebahn 17 und Auftragswalze 5 entspricht. Die Antriebsgeschwindigkeit ist derart, dass sie identisch zur Transportgeschwindigkeit der Wellpappebahn 17, dieser gegenüber also schlupffrei, ist. Es ist aber auch möglich, die Auftragswalze 5 mit größerer oder kleinerer Umfangsgeschwindigkeit als die Transportgeschwindigkeit der einseitigen Wellpappebahn 17 anzutreiben, um den Leimauftrag zu beeinflussen. Die Leim-Vordosierwalze 10 dreht in zur Drehrichtung 24 entgegengesetzter Drehrichtung 25, da die Auftragswalze 5 und die Vordosierwalze 10 in dem durch sie begrenzten Leim-Vordosier-Spalt 26 die gleiche Bewegungsrichtung aufweisen. Die Abquetschwalze 12 wird in gleicher Drehrichtung 27 wie die Drehrichtung 24 der Auftragswalze 5 angetrieben, so dass die Auftragswalze 5 und die Abquetschwalze 12 an dem durch sie begrenzten, als Leim-Nachdosier-Spalt dienenden Leim-Abquetsch-Spalt 28 einander entgegengesetzte Bewegungsrichtungen aufweisen.The application roller 5 is driven in a direction of rotation 24, which the Transport direction 20 of the corrugated cardboard web 17 at the contact point between Corrugated cardboard web 17 and applicator roller 5 corresponds. The drive speed is such that it is identical to the transport speed of the Corrugated cardboard web 17, so that it is slip-free compared to it. It is also possible, the applicator roller 5 with a larger or smaller peripheral speed than the transport speed of the one-sided corrugated cardboard web 17 to influence the glue application. The glue pre-metering roller 10 rotates in the opposite direction of rotation 24 25, since the application roller 5 and the pre-metering roller 10 in the through them limited glue pre-metering gap 26 the same direction of movement exhibit. The squeeze roller 12 is 27 in the same direction as the direction of rotation 24 of the application roller 5 driven, so that the application roller 5 and the squeeze roller 12 on the bounded by it, as Glue-Nachdosier-gap serving glue squeeze gap 28 opposite to each other Have directions of movement.

Bezogen auf die Drehrichtung 25 der Vordosierwalze 10 im Vordosier-Spalt 26 ist dem Spalt 26 eine Leim-Zulaufwanne 29 vorgeordnet, die einen Leim-Überlauf 30 aufweist, der um einen geringen Abstand a, von beispielsweise 10 bis 50 Millimetern, unterhalb des Leim-Vordosier-Spaltes 26 angeordnet ist, so dass der Leim-Spiegel 31 des in der Zulaufwanne 29 befindlichen Leims sich nur um dieses geringe Maß unterhalb des Vordosier-Spaltes 26 befindet. Der Leim-Überlauf 30 bildet also eine Einrichtung zur Beibehaltung des Leim-Spiegels 31 auf einem konstanten Niveau. Die Zulaufwanne 29 liegt mit ihrem Boden 32 und ihren Seitenwänden 33, 34 dicht an der Leim-Vordosierwalze 10 an, so dass der Leim im Bereich der Zulaufwanne 29 direkt gegen die Vordosierwalze 10 ansteht, wie Fig. 1 anschaulich entnehmbar ist.Relative to the direction of rotation 25 of the pre-metering roller 10 in the pre-metering gap 26 is upstream of the gap 26 a glue inlet trough 29, one Glue overflow 30, which by a small distance a, for example 10 to 50 millimeters, below the glue pre-metering gap 26 is arranged so that the glue level 31 of the in the feed pan 29th glue is only this small amount below the pre-metering gap 26 is located. The glue overflow 30 thus forms a device to maintain the glue level 31 at a constant level. The Inlet pan 29 lies with its bottom 32 and its side walls 33, 34 close to the glue pre-metering roller 10, so that the glue in the area of Inlet pan 29 is directly against the pre-metering roller 10, as shown in FIG. 1 can be clearly seen.

Auf der der Leim-Zulaufwanne 29 abgewandten Seite, also unterhalb der Abquetschwalze 12 ist eine Leim-Ablaufwanne 35 angeordnet, deren Boden 36 und Seitenwände 37, 38 ebenfalls dicht gegen die Vordosierwalze 10 anliegen. Auch die Ablaufwanne 35 weist einen Leim-Überlauf 39 auf, der tiefer liegt als der Leim-Überlauf 30. Durch die Höhe dieses Leim-Überlaufs 39 wird der Leim-Spiegel 40 in der Ablaufwanne 35 definiert. An der Ablaufwanne 35 sind zwei in Richtung der Achse 15 verstellbare Abstreifer 41, 42 angebracht, die gegen die Auftragswalze 5 anliegen, und zwar bezogen auf die Drehrichtung 24, 25 im Spalt 26 hinter dem Spalt 26. Sie streifen auf der Auftragswalze 5 befindlichen Leim über eine Breite von wenigen Zentimetern, beispielsweise fünf Zentimetern, ab. Die Abstreifer 41, 42 werden so eingestellt, dass an den Seitenrändern der Wellpappebahn 17 keine oder nur eine reduzierte Beleimung der Wellenköpfe 21 der gewellten Papierbahn 18 erfolgt.On the side facing away from the glue feed trough 29, ie below the Squeeze roller 12, a glue drain pan 35 is arranged, the bottom 36 and side walls 37, 38 also tight against the pre-metering roller 10 concerns. The drain pan 35 also has a glue overflow 39, which is lower than the glue overflow 30. Due to the height of this glue overflow 39 the glue level 40 is defined in the drain pan 35. On the drain pan 35 are two adjustable in the direction of the axis 15 Scraper 41, 42 attached, which abut against the applicator roller 5, and in relation to the direction of rotation 24, 25 in the gap 26 behind the gap 26. They strip glue on the application roller 5 over a width from a few centimeters, for example five centimeters. The wipers 41, 42 are set so that on the side edges of the corrugated cardboard web 17 no or only a reduced gluing of the wave heads 21 of the corrugated paper web 18 takes place.

Gegen die Abquetschwalze 12 liegt in üblicher Weise - bezogen auf die Drehrichtung 27 der Abquetschwalze 12 im Leim-Abquetsch-Spalt 28 - hinter dem Spalt 28 ein Schaber 43 beziehungsweise eine Rakel an, die hinter dem Spalt 28 auf der Abquetschwalze 12 befindlichen Leim abstreift, der in die Ablaufwanne 35 fließt.Is against the squeeze roller 12 in the usual way - based on the Direction of rotation 27 of the squeeze roller 12 in the glue squeeze gap 28 - behind the gap 28 a scraper 43 or a squeegee on the strips glue located behind the gap 28 on the squeeze roller 12, which flows into the drain pan 35.

Die untere Leim-Vordosierwalze 10 kann in der durch die Achsen 8, 11 gebildeten vertikalen Ebene in vertikaler Verstellrichtung 44 relativ zur Auftragswalze 5 mittels der als Schiebelager ausgebildeten, verstellbaren Lager 10a so verstellt werden, dass der Leim-Vordosier-Spalt 26 eine Spaltweite von 0,15 bis 0,85 Millimetern erhält. Durch die horizontale Verstellbarkeit der Abquetschwalze 12 gegenüber der Auftragswalze 5 in der durch die Achsen 8, 15 gebildeten Ebene, also in der horizontalen Verstellrichtung 45, kann der Leim-Abquetsch-Spalt 28 mit einer Breite von 0,1 bis 0,8 Millimeter eingestellt werden. Die Drehzahlen der Auftragswalze 5 und der Abquetschwalze 12 können so eingestellt werden, dass für das Verhältnis der Umfangsgeschwindigkeit v5 der Auftragswalze 5 zur Umfangsgeschwindigkeit v12 der Abquetschwalze 12 im Abquetsch-Spalt 28 gilt: 1,0 ≤ v5/v12 ≤ 4,0. Durch die geschilderten Maßnahmen können Leim-Film-Dicken auf der Auftragswalze 5 erzielt werden, die von 0 bis 0,4 Millimeter reichen. Eine Filmdicke von 0 Millimeter liegt vor, wenn nur in den Vertiefungen 9, also in den Näpfchen der Rasterung, sich Leim befindet.The lower glue pre-metering roller 10 can be adjusted in the vertical plane formed by the axes 8, 11 in the vertical adjustment direction 44 relative to the application roller 5 by means of the adjustable bearings 10a designed as a sliding bearing so that the glue pre-metering gap 26 has a gap width of 0.15 to 0.85 millimeters. Due to the horizontal adjustability of the squeeze roller 12 relative to the application roller 5 in the plane formed by the axes 8, 15, that is to say in the horizontal adjustment direction 45, the glue squeeze gap 28 can be set with a width of 0.1 to 0.8 millimeters become. The speeds of the application roller 5 and the squeeze roller 12 can be set so that the following applies to the ratio of the peripheral speed v 5 of the application roller 5 to the peripheral speed v 12 of the squeeze roller 12 in the squeeze nip 28: 1.0 v v 5 / v 12 4 4 , 0th The measures described can achieve glue-film thicknesses on the application roller 5, which range from 0 to 0.4 millimeters. A film thickness of 0 millimeters is present if there is glue only in the depressions 9, that is to say in the wells of the grid.

Der Leim wird der Leim-Zulaufwanne 29 mittels einer Pumpe 46 von einem Vorrats-Behälter 47 zugeführt. In diesen Vorrats-Behälter 47 fließt auch der Leim zurück, der jeweils über den Leim-Überlauf 30 bzw. den Leim-Überlauf 39 abgelaufen ist.The glue is fed to the glue feed pan 29 by means of a pump 46 Storage container 47 supplied. In this reservoir 47 flows also the glue back, which in each case via the glue overflow 30 or Glue overflow 39 has expired.

Als Einrichtung zur Konstanthaltung des Leim-Spiegels 37 kann auch eine Messeinrichtung vorgesehen sein, die die Höhe des Leim-Spiegels 31 misst und die Pumpe 46 so ansteuert, dass dieser konstant gehalten wird. Ein Leim-Überlauf 30 wäre in diesem Fall nicht notwendig.A device can also be used as a device for keeping the glue level 37 constant Measuring device can be provided which measures the height of the glue level 31 and controls the pump 46 so that it is kept constant. On Glue overflow 30 would not be necessary in this case.

Die Ausführungsform nach Fig. 4 unterscheidet sich von der nach den Fig. 1 bis 3 nur dadurch, dass anstelle einer Press- oder Andrückwalze sogenannte Andrückschuhe 48 vorgesehen sind, mittels derer die Wellpappebahn 17 federnd gegen die Auftragswalze 5 angedrückt wird.The embodiment according to FIG. 4 differs from that according to FIG. 1 to 3 only in that so-called instead of a press or pressure roller Pressure shoes 48 are provided, by means of which the corrugated cardboard web 17 is pressed resiliently against the application roller 5.

Die Ausführungsform nach Fig. 5 unterscheidet sich von der nach den Fig. 4 dadurch, dass anstelle einer Leim-Zulaufwanne und einer Leim-Ablaufwanne eine einzige Leim-Wanne 49 vorgesehen ist, in die die Leim-Vordosierwalze 10 eintaucht.5 differs from that of FIGS. 4 in that instead of a glue feed pan and a glue drain pan a single glue tub 49 is provided into which the glue pre-metering roller 10 dips.

Die Ausführungsform nach Fig. 6 zeigt lediglich das Leimwerk ohne Press- oder Andrückwalze bzw. ohne Andrückschuhe. Hierbei sind seitliche Abdichtungen 50, 51 der Leim-Zulaufwanne 29 bzw. der Leim-Ablaufwanne 35 dargestellt, die federnd gegen die Leim-Vordosierwalze 10 anliegen. Die Böden 32 bzw. 36 der Leim-Zulaufwanne 29 und der Leim-Ablaufwanne 35 liegen als Schaber 52 bzw. 53 an der Oberfläche der Vordosierwalze 10 an.The embodiment according to FIG. 6 only shows the gluing unit without pressing or pressure roller or without pressure shoes. Here are side seals 50, 51 of the glue inlet tub 29 or the glue outlet tub 35 shown, which bear resiliently against the glue pre-metering roller 10. The floors 32 and 36 of the glue inlet pan 29 and the glue drain pan 35 are as scrapers 52 and 53 on the surface of the pre-metering roller 10 on.

Weiterhin ist Fig. 6 entnehmbar, dass die Lager 54 der Vordosierwalze 10 bzw. die Lager 55 der Abquetschwalze 12 mittels Exzentern 56 bzw. 57 verstellt werden können, wodurch die Spaltweite des Leim-Vordosier-Spaltes 26 bzw. des Leim-Abquetsch-Spaltes 28 verändert werden können. Wie oben dargestellt, sind die Spalte 26 bzw. 28 sehr klein; die Veränderungen der Spaltweiten sind noch geringer. Zur Verstellung der Exzenter 56, 57 können Linear-Antriebe 58 bzw. 59 vorgesehen sein.6 that the bearings 54 of the pre-metering roller 10 or the bearings 55 of the squeeze roller 12 by means of eccentrics 56 and 57 can be adjusted, whereby the gap width of the glue pre-metering gap 26 or the glue squeeze gap 28 can be changed. As shown above, columns 26 and 28 are very small; the changes the gap widths are even smaller. For adjusting the eccentric 56, 57, linear drives 58 and 59 can be provided.

Die verschiedenen geschilderten Abwandlungen können bei den verschiedenen Ausführungsformen jeweils wahlweise eingesetzt werden.The various modifications described can be in the different Embodiments can be used optionally.

Ein Leimwerk der geschilderten Art wird vor einer sogenannten Heizpartie angebracht, in der die einseitige Wellpappebahn 17 mit einer weiteren derartigen Wellpappebahn und/oder einer weiteren Deckbahn beschichtet wird. Derartige Anordnungen sind beispielsweise bekannt aus der EP 0 179 395 A.A glue unit of the type described is in front of a so-called heating section attached in which the one-sided corrugated sheet 17 with another such Corrugated cardboard and / or another cover sheet coated becomes. Such arrangements are known for example from EP 0 179 395 A.

Die Arbeitsweise ist wie folgt:The mode of operation is as follows:

Der Leim wird aus der Leim-Zulaufwanne 29 von der Vordosierwalze 10 in deren Drehrichtung 25 mitgenommen und im Leim-Vordosier-Spalt 26 vordosiert, da hier bereits ein Teil der dem Vordosier-Spalt 26 zugeführten Leimmenge abgeführt wird. Der im Leim-Vordosier-Spalt 26 auf die Leim-Auftragswalze 5 übertragene Leim wird von der Leim-Auftragswalze 5 in deren Drehrichtung 24 weiter transportiert und im Leim-Abquetsch-Spalt 28 nachdosiert, d. h. kalibriert, also in seiner Dicke exakt eingestellt. Hierbei erfolgt zum zweiten Mal eine Abführung überschüssigen Leims. Damit dies erreicht wird, sollte der Leim-Vordosier-Spalt 26 immer eine etwas größere Spaltweite als der Leim-Abquetsch-Spalt 28 haben, wobei der Spaltweiten-Unterschied im Bereich von etwa 0,05 bis 0,1 mm liegen kann.The glue is removed from the glue feed pan 29 by the pre-metering roller 10 taken in the direction of rotation 25 and in the glue pre-metering gap 26th predosed, since part of the feed to the pre-metering gap 26 is already here Amount of glue is dissipated. The one in the glue pre-metering gap 26 on the glue application roller 5 transferred glue is from the glue application roller 5 in whose direction of rotation 24 transported and in the glue squeeze gap 28 replenished, d. H. calibrated, i.e. precisely adjusted in thickness. in this connection excess glue is removed for the second time. In order to this is achieved, the glue pre-metering gap 26 should always be a bit have a larger gap width than the glue squeeze gap 28, the The gap width difference can be in the range of approximately 0.05 to 0.1 mm.

Vor dem Abquetschen wird mittels der Abstreifer 41, 42 ein weitgehend leimfreier Oberflächenbereich auf der Auftragswalze 5 erzeugt. Der hinter dem Abquetsch-Spalt 28 auf der Leim-Auftragswalze 5 befindliche Leim wird auf die Wellenköpfe 21 der gewellten Papierbahn 18 übertragen.Before being squeezed off, scrapers 41, 42 are used to a large extent glue-free surface area generated on the applicator roller 5. The behind the squeeze nip 28 on the glue application roller 5 glue is transferred to the shaft heads 21 of the corrugated paper web 18.

Dadurch, dass sich der Leim-Spiegel 31 um den Abstand a von nur wenigen Millimetern unterhalb des Leim-Vordosier-Spaltes 26 befindet, ist der Einfluss der Schwerkraft bei der Leimförderung durch die Vordosierwalze 10 bis in den Vordosier-Spalt 26 nahezu vollständig eliminiert. Hierdurch bedingt kann sich die untere Leim-Vordosierwalze 10 mit einer sehr geringen Umfangsgeschwindigkeit von beispielsweise 20 m/min bei allen Spalt- und Geschwindigkeitseinstellungen der geschilderten Art drehen. Grundsätzlich kann die Umfangsgeschwindigkeit der Vordosierwalze 10 aber beliebig sein. Der Leim-Vordosier-Spalt 26 wird immer ausreichend mit Leim gefüllt. Wegen dieser möglichen geringen Umfangsgeschwindigkeit der Leim-Vordosierwalze 10 wird wiederum erreicht, dass der Leim-Spiegel 31 in der Leim-Zulaufwanne 29 sehr ruhig bleibt. Dadurch wird eine Leimverbrauchsmessung erleichtert und kann sehr präzise sein.The fact that the glue mirror 31 by a distance of only a few Millimeters below the glue pre-metering gap 26 is the Influence of gravity when glue is conveyed through the pre-metering roller 10 almost completely eliminated into the pre-metering gap 26. hereby conditionally, the lower glue pre-metering roller 10 can be very small Peripheral speed of, for example, 20 m / min with all gap and turn speed settings of the type described. in principle the peripheral speed of the pre-metering roller 10 can be arbitrary. The glue pre-metering gap 26 is always sufficient Glue filled. Because of this possible low peripheral speed the glue pre-metering roller 10 is in turn reached that the glue level 31 remains very calm in the glue inlet tub 29. This will a glue consumption measurement facilitates and can be very precise.

Da sich die Auftragswalze 5 und die Vordosierwalze 10 im Vordosier-Spalt 26 in gleicher Richtung drehen, erfolgt eine gleichmäßige Aufteilung des von der Vordosierwalze 10 geförderten Leims auf die Auftragswalze 5. Since the application roller 5 and the pre-metering roller 10 in the pre-metering nip 26 rotate in the same direction, there is an even division of the glue conveyed by the pre-metering roller 10 onto the application roller 5.

Die Leim-Abquetschwalze 12 wird durch den Schaber 43 gereinigt. Durch die mittels der Abstreifer 41, 42 erzeugten leimfreien Streifen auf der Auftragswalze 5 wird ein Trockenlauf der Auftragswalze 5 außerhalb der Breite der Wellpappebahn 17 vermieden.The glue squeeze roller 12 is cleaned by the scraper 43. By the glue-free strips produced by the wipers 41, 42 on the application roller 5 is a dry running of the application roller 5 outside of the width the corrugated cardboard web 17 avoided.

Claims (22)

Verfahren zum fortlaufenden Beleimen von Bahnen, insbesondere der Wellenköpfe (21) von Wellpappebahnen (17),
wobei Leim aus einem Leim-Vorrat in einen Leim-Vordosier-Spalt (26) transportiert und dort vordosiert wird,
wobei der vordosierte Leim in einem dem Leim-Vordosier-Spalt (26) nachgeordneten Leim-Nachdosier-Spalt (28) nachdosiert wird und
wobei der nachdosierte Leim auf die Bahn aufgetragen wird.Process for the continuous gluing of webs, in particular the corrugated heads (21) of corrugated cardboard webs (17),
wherein glue is transported from a glue supply into a glue pre-metering gap (26) and pre-metered there,
wherein the pre-dosed glue is dosed in a glue re-dosing gap (28) arranged downstream of the glue pre-dosing gap (26) and
with the added glue being applied to the web. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Leim durch Abquetschen nachdosiert wird.A method according to claim 1, characterized in that the glue is replenished by squeezing. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Leim-Vordosier-Spalt (26) durch Wände begrenzt wird, die gleichsinnig bewegt werden.Method according to claim 1 or 2, characterized in that the glue pre-metering gap (26) is delimited by walls which are moved in the same direction. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Leim-Nachdosier-Spalt (28) durch Wände begrenzt wird, die gegensinnig bewegt werden.Method according to one of claims 1 to 3, characterized in that the glue re-metering gap (28) is delimited by walls which are moved in opposite directions. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass der Leim-Vordosier-Spalt (26) durch eine Leim-Vordosierwalze (10) und eine Leim-Auftragswalze (5) begrenzt wird.A method according to claim 3, characterized in that the glue pre-metering gap (26) is limited by a glue pre-metering roller (10) and a glue application roller (5). Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass der Leim-Nachdosier-Spalt (28) durch eine Leim-Nachdosierwalze (12) und eine Leim-Auftragswalze (5) begrenzt wird. A method according to claim 4, characterized in that the glue replenishment gap (28) is limited by a glue replenishment roller (12) and a glue application roller (5). Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Leim-Vordosier-Spalt (26) in seiner Spaltweite einstellbar ist.Method according to one of claims 1 to 6, characterized in that the glue pre-metering gap (26) is adjustable in its gap width. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass die Spaltweite des Leim-Vordosier-Spaltes (26) von 0,15 bis 0,85 mm einstellbar ist.A method according to claim 7, characterized in that the gap width of the glue pre-metering gap (26) is adjustable from 0.15 to 0.85 mm. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Leim-Nachdosier-Spalt (28) in seiner Spaltweite einstellbar ist.Method according to one of claims 1 to 8, characterized in that the glue re-metering gap (28) is adjustable in its gap width. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die Spaltweite des Leim-Nachdosier-Spaltes (28) von 0,1 bis 0,8 mm einstellbar ist.A method according to claim 9, characterized in that the gap width of the glue re-metering gap (28) is adjustable from 0.1 to 0.8 mm. Verfahren nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Leim aus dem Leimvorrat um ein Maß a nach oben in den Leim-Vordosier-Spalt (26) transportiert wird.Method according to one of claims 1 to 10, characterized in that the glue from the glue supply is transported upwards by a dimension into the glue pre-metering gap (26). Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass für das Maß a gilt: 10 mm ≤ a ≤ 50 mm.A method according to claim 11, characterized in that the following applies to dimension a: 10 mm ≤ a ≤ 50 mm. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Leim-Auftragswalze (5) mit einer Umfangsgeschwindigkeit v5 und die Leim-Nachdosier-Walze (12) mit einer Geschwindigkeit V12 bewegt werden und dass für das Verhältnis von v5 und v12 gilt: 1,0 ≤ v5/v12 ≤ 4,0. Method according to claim 6, characterized in that the glue application roller (5) is moved at a peripheral speed v 5 and the glue replenishing roller (12) at a speed V 12 and that the ratio of v 5 and v 12 applies : 1.0 ≤ v 5 / v 12 ≤ 4.0. Leimwerk zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 13, mit einem Gestell (1), mit einer in dem Gestell (1) gelagerten, in einer ersten Drehrichtung (24) drehantreibbaren Leim-Auftragswalze (5), mit einer unterhalb der Leim-Auftragswalze (5) in dem Gestell (1) gelagerten, in einer zweiten Drehrichtung (25) drehantreibbaren, mit der Leim-Auftragswalze (5) einen Leim-Vordosier-Spalt (26) begrenzenden Leim-Vordosierwalze (10), mit einer der Leim-Vordosierwalze (10) in der ersten Drehrichtung (24) nachgeordneten, mit der Leim-Auftragswalze (5) einen Leim-Nachdosier-Spalt (28) begrenzenden Leim-Nachdosierwalze (12) und mit mindestens einer Leim-Wanne (29, 35; 49), in die die Leim-Vordosierwalze (10) zumindest teilweise eintaucht. Glue unit for carrying out the method according to one of claims 1 to 13, with a frame (1), with a glue application roller (5) mounted in the frame (1) and drivable in a first direction of rotation (24), with a glue pre-metering roller (10) which is mounted in the frame (1) below the glue application roller (5) and can be driven in rotation in a second direction of rotation (25) and which delimits a glue pre-metering gap (26) with the glue application roller (5) ) with one of the glue pre-metering roller (10) downstream in the first direction of rotation (24), with the glue application roller (5) a glue re-dosing gap (28) delimiting glue re-dosing roller (12) and with at least one glue tub (29, 35; 49) into which the glue pre-metering roller (10) is at least partially immersed. Leimwerk nach Anspruch 14, dadurch gekennzeichnet, dass Einrichtungen zur Beibehaltung eines Leim-Spiegels (31) in geringem vertikalen Abstand (a) zum Leim-Vordosier-Spalt (26) vorgesehen sind.Glue unit according to claim 14, characterized in that means for maintaining a glue level (31) at a small vertical distance (a) from the glue pre-metering gap (26) are provided. Leimwerk nach Anspruch 15, dadurch gekennzeichnet, dass für den vertikalen Abstand a gilt: 10 ≤ a ≤ 50 mm.Glue unit according to claim 15, characterized in that for the vertical distance a: 10 ≤ a ≤ 50 mm. Leimwerk nach einem der Ansprüche 14 bis 16, dadurch gekennzeichnet, dass die Spaltweite des Leim-Nachdosier-Spaltes (28) kleiner ist als die Weite des Leim-Vordosier-Spaltes (26). Glue unit according to one of claims 14 to 16, characterized in that the gap width of the glue re-metering gap (28) is smaller than the width of the glue pre-metering gap (26). Leimwerk nach einem der Ansprüche 14 bis 17, dadurch gekennzeichnet, dass eine seitlich zur Leim-Vordosierwalze (10) hin offene, dem Leim-Vordosier-Spalt (26) - bezogen auf die zweite Drehrichtung (25) - vorgeordnete Leim-Zulauf-Wanne (29) vorgesehen ist.Glue unit according to one of claims 14 to 17, characterized in that a glue feed trough which is open to the side of the glue pre-metering roller (10) and is arranged upstream of the glue pre-metering gap (26) - with respect to the second direction of rotation (25) (29) is provided. Leimwerk nach Anspruch 18, dadurch gekennzeichnet, dass eine seitlich zur Leim-Vordosierwalze (10) hin offene, dem Leim-Vordosier-Spalt (26) - bezogen auf die zweite Drehrichtung (25)-nachgeordnete Leim-Ablaufwanne (35) vorgesehen ist.Glue unit according to claim 18, characterized in that a glue drain pan (35), which is open to the side of the glue pre-metering roller (10) and is arranged downstream of the glue pre-metering gap (26), is provided in relation to the second direction of rotation (25). Leimwerk nach einem der Ansprüche 14 bis 19, dadurch gekennzeichnet, dass die Leim-Vordosierwalze (10) zur Veränderung der Weite des Leim-Vordosier-Spaltes (26) in einer vertikalen Verstellrichtung (44) verstellbar ist.Glue unit according to one of claims 14 to 19, characterized in that the glue pre-metering roller (10) for changing the width of the glue pre-metering gap (26) is adjustable in a vertical adjustment direction (44). Leimwerk nach einem der Ansprüche 14 bis 20, dadurch gekennzeichnet, dass die Leim-Nachdosier-Walze (12) zur Veränderung der Weite des Leim-Nachdosier-Spaltes (28) in einer horizontalen Verstellrichtung (45) verstellbar ist.Glue unit according to one of claims 14 to 20, characterized in that the glue re-metering roller (12) for changing the width of the glue re-metering gap (28) is adjustable in a horizontal adjustment direction (45). Leimwerk nach einem der Ansprüche 18 bis 21, dadurch gekennzeichnet, dass Einrichtungen zur Beibehaltung eines Leim-Spiegels (31) in der Leim-Wanne (29; 49) durch einen Leim-Überlauf (30) in der Leim-Wanne (29; 49) gebildet sind.Glue unit according to one of claims 18 to 21, characterized in that means for maintaining a glue level (31) in the glue tub (29; 49) by a glue overflow (30) in the glue tub (29; 49 ) are formed.
EP04011605A 2003-05-31 2004-05-15 Method and glueing device for continuously applying an adhesive on webs Withdrawn EP1481793A3 (en)

Applications Claiming Priority (2)

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DE10324729 2003-05-31
DE10324729A DE10324729A1 (en) 2003-05-31 2003-05-31 Method and gluing unit for continuous gluing of webs

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EP1481793A2 true EP1481793A2 (en) 2004-12-01
EP1481793A3 EP1481793A3 (en) 2005-08-17

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US (1) US20040241328A1 (en)
EP (1) EP1481793A3 (en)
CN (1) CN1572481A (en)
DE (1) DE10324729A1 (en)

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EP3401090A1 (en) * 2017-05-03 2018-11-14 BHS Corrugated Maschinen-und Anlagenbau GmbH Glue dam seal arrangement

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EP3401090A1 (en) * 2017-05-03 2018-11-14 BHS Corrugated Maschinen-und Anlagenbau GmbH Glue dam seal arrangement
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Also Published As

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CN1572481A (en) 2005-02-02
EP1481793A3 (en) 2005-08-17
US20040241328A1 (en) 2004-12-02
DE10324729A1 (en) 2004-12-16

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