EP1297947B1 - Method for producing corrugated paperboard and laminating mechanism for carrying out said method - Google Patents

Method for producing corrugated paperboard and laminating mechanism for carrying out said method Download PDF

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Publication number
EP1297947B1
EP1297947B1 EP02020371A EP02020371A EP1297947B1 EP 1297947 B1 EP1297947 B1 EP 1297947B1 EP 02020371 A EP02020371 A EP 02020371A EP 02020371 A EP02020371 A EP 02020371A EP 1297947 B1 EP1297947 B1 EP 1297947B1
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EP
European Patent Office
Prior art keywords
corrugated cardboard
web
cardboard web
roller
laminating machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02020371A
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German (de)
French (fr)
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EP1297947A1 (en
Inventor
Iren Fahri
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.)
Wepoba Wellpappenfabrik & Co KG GmbH
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Wepoba Wellpappenfabrik & Co KG GmbH
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Publication of EP1297947A1 publication Critical patent/EP1297947A1/en
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    • 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
    • B31F1/2831—Control
    • 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 producing corrugated cardboard and a Laminating unit for carrying out such a method.
  • DE 31 38 673 relates to a control for aligning two running Paper webs.
  • the relative shift of the two Paper webs determined to each other and via appropriate facilities balanced.
  • the selected initial settings with regard to contact pressure, Glue application quantity and so on must be checked and if necessary changing external conditions. It arises for example the problem that a once chosen Amount of glue applied, for example, by changing the moisture content of the Ambient air at a later time is no longer for a fixed Adhesive connection is sufficient. The non-glued areas of the Corrugated cardboard web can no longer be used.
  • EP-A-1 101 600 describes a method for quality detection of corrugated cardboard webs, with the geometric characteristics of the Corrugated pop sheet can be sensed.
  • the object of the present invention is a method for the production of corrugated cardboard and an improved laminating unit for To provide implementation of such a process.
  • the task is accomplished through a method of making corrugated cardboard solved by laminating a wave track onto a ceiling track, one Corrugated cardboard runway side is blown with gas and a Divergence of the wave track of the ceiling track in not glued Corrugated cardboard web areas is detected.
  • it is inventive method not only on a corrugated sheet and a Ceiling sheet applicable, but on any paper sheet that be laminated on top of each other. In particular, can on the wave track and / or the cover sheet already has further cover sheets and / or Wavy paths have been concealed.
  • the corrugated cardboard web is produced immediately after Laminated with gas. At best, there will be air used, which flows from air nozzles on the long sides of the Corrugated cardboard run are directed. Should corrugated areas not be firmly glued together, the gas jet blows wave path and Ceiling membrane apart. The incorrectly concealed areas will be quickly discovered, so that at most a few meters Corrugated board committee are produced.
  • the divergence of the wave path and the Cover sheet detected by suitable detection means and the Measured values are evaluated and an adhesive supply is increased and / or the Feed of the wave track or ceiling track is reduced.
  • the detected values are automatically evaluated and, for example, one Control circuit fed.
  • the control circuit controls appropriate means to increase the glue supply or to reduce the feed or to output an acoustic or optical signal. Possibly after evaluation of the Measured values of the lamination process can also be stopped.
  • the width of the corrugated cardboard web is preferably first determined and the air nozzles in a position next to the long side of the corrugated cardboard tracked.
  • paper webs become more different Width used to produce a corresponding corrugated cardboard. Since the nozzles or the like only a few centimeters Effective area, the air nozzles should be in the immediate vicinity of the Corrugated cardboard along the long side.
  • the nozzles or similar along the width of the corrugated cardboard web to the long side of the Track corrugated cardboard.
  • the task is also covered by a laminating unit Roller arrangement with oppositely arranged side by side rotatable rollers with a feed side and with an eject side for a corrugated cardboard web and at least one ejection side of the Roller arrangement arranged on a long side of a Corrugated cardboard directional blowing agent for blowing apart not glued corrugated cardboard web areas and next to the at least one Air nozzle arranged means for detection of the blown apart Corrugated cardboard web areas solved.
  • the blowing agent preferably has an air nozzle.
  • the Air nozzle is directed so that its air steel on one long side of the corrugated cardboard run.
  • the corrugated cardboard run is the one Area between the rollers that the inserted paper webs or run through the laminated corrugated cardboard web.
  • To achieve a high Reliability and accuracy in finding non-glued Corrugated cardboard web areas is the air steel of the air nozzle as accurate as possible and continuously on one long side of the continuous corrugated cardboard web directed.
  • the corrugated cardboard web run is generally thicker than the corrugated cardboard. Therefore, preferably along the Corrugated cardboard run between the ejection side and the least an air nozzle a deflection roller along the width of the Corrugated cardboard run arranged.
  • the deflection roller fixes the Corrugated cardboard web, the at least one air nozzle is more precise on one Longitudinal side of the corrugated cardboard can be straightened.
  • the detection means preferably have a photocell and one the photocell is directed towards the laser.
  • the position of at least one Air nozzle and / or the detection means is preferably by means of a Holding device adjustable along the corrugated cardboard running width. there the laser beam is guided next to the corrugated cardboard web that the blown corrugated cardboard interrupts the light barrier.
  • the Holding device has, for example, two on opposite Walls of a laminating frame essentially mirror images arranged parts on. An air nozzle can pass through the laser with a Part of the holding device in the area of a long side of the corrugated cardboard web and another air nozzle with the photocell through another part of the Holding device in the area of the other side of the corrugated cardboard web be adjustably attached. Both parts of the holding device can be operated manually be adjustable. It is also possible that the detection means two Have photocells, blowing apart the corrugated cardboard web on the long sides, the incidence of light on the photocells is detectable Way changes.
  • the holding device along the Corrugated cardboard running width arranged rail on which the at least one blowing agent and / or detection means adjustable are arranged. Both ends of the rail are each one Part of a holding device with a laminating frame connected.
  • a carriage an air nozzle and a Laser and another carriage has an air nozzle and a photo cell.
  • air nozzles are only exemplary configurations of the Bladder means.
  • two lasers and two photocells are also conceivable interchanged on the two long sides of the corrugated cardboard.
  • this Laminating unit a drive for adjusting the position of the blowing agent and / or the detection means.
  • This drive can for example the sled be provided.
  • the roller arrangement can be arranged vertically from top to bottom Pressure roller an upper corrugating roller and a lower corrugating roller have, the deflecting roller horizontally next to the pressure roller is arranged. It is also conceivable that the rollers are reversed Order.
  • the upper and the lower corrugating roller can a first nip, the pressure roller and the upper corrugating roller form a second nip. In the second nip is the actual lamination process feasible.
  • this should be at least one Blowing agent and the detection means to an appropriate Corrugated cardboard web width can be adjustable. These are preferably with the at least one air nozzle and / or detection means further Detection means connected to determine the Corrugated cardboard web width are directed to the corrugated cardboard web run.
  • the further detection means preferably have photocells. At the Tracking the other detection means are in the range of Long sides of the corrugated cardboard web a sudden change in Exposed to light.
  • the other means of detection are preferably via a first control circuit with the drive connected. The position adjustment of the at least one blowing agent and / or the detection means can thus be carried out automatically.
  • the detection means are with a second control circuit for the feed of the corrugated web and the Ceiling sheet or connected for glue supply.
  • a central area of the single-shaft unit according to the invention has three rolls 1, 2, 3 arranged vertically one above the other.
  • the lower two rollers have the same diameter.
  • the bottom one The roller is a lower corrugating roller 1 and the middle roller is an upper one Corrugated roller 2.
  • the topmost of the three rollers is a pressure roller 3.
  • One Paper web can be unrolled from a paper roll and after alignment first deflecting rollers 4 can be guided via a humidifier 5.
  • the Paper web run 6a is represented by a broken line. In the the paper web inserted on one side runs in the associated paper web run.
  • the evaporator 5 humidifies one Paper web.
  • the moistened paper web is easier to deform than a dry paper web.
  • a good adhesive bond between two Paper webs are already through when a paper web is moistened achieved less glue than between two dry paper webs.
  • the moistened paper web becomes a first nip fed between upper 2 and lower corrugating roller 1.
  • the top and the lower corrugated roller has elevations along the longitudinal direction of the roller and reductions on. The rises and falls of the upper 2 and lower 1 corrugating roller mesh.
  • To The passage of one paper web through the first nip is the a paper web is formed into the wave web 6b.
  • the wave track 6b has a wave pattern in the longitudinal cross-section.
  • the wave track is on the upper corrugating roller 2 lying about half around it to a second Roll nip guided.
  • the second nip is created by the mutually spaced parallel arrangement of the upper corrugating roller 2 and the pressure roller 3.
  • a glue application roller 7 is located horizontally next to the upper corrugating roller 2 provided on the wave track side.
  • the upper corrugating roller 2 and the Glue application roller 7 rotate in opposite directions.
  • the glue application roller 7 rolls Glue on the crests of the waves lying on the upper corrugating roller 2 Wave track 6b.
  • the glue application roller 7 acts with a Glue squeeze roller 8 to regulate the glue layer thickness on the Glue applicator roller 7 and thus on the crests of the shaft 6a applied amount of glue together.
  • the actual lamination process takes place in the second nip.
  • the wave track 6b is glued to a ceiling track 6c under pressure.
  • the Cover web 6c is from another paper roll as another paper web unrollable and over the second deflection rollers 7 the second nip fed.
  • a ceiling run is also a broken line shown.
  • the upper corrugating roller 2 and the pressure roller 3 rotate opposite and have a feed side 10 for the wave track 6b and the cover sheet 6c.
  • the two after passing through the second Roll nip laminated webs are on a Ejection side 11 of the roller assembly 2, 3 in the form of a one-sided Corrugated cardboard web 6d ejected.
  • a corrugated cardboard run is also shown as a broken line.
  • FIG 1 is above the deflection roller on one side Shaft assembly frame in the areas of the two ends of the deflection roller
  • One holding device 14a, 14b each for air nozzles 15 is arranged.
  • the Air nozzles 15 are designed such that a strong air jet on each the long sides of the single-sided corrugated cardboard 6d is directed. If about due to insufficient glue application or insufficient contact pressure no satisfactory adhesive connection achieved during the lamination process were created especially in the area of the long sides of corrugated cardboard areas of non-glued corrugated cardboard.
  • the one from the two air vents 15 strong air jet blows in the wave track and the ceiling track the non-glued corrugated cardboard areas of the Long sides of corrugated cardboard web apart.
  • a laser 16a of the light barrier is used by one Holding device 14a held.
  • the laser 16a is on a photocell 16b is directed, which is held by the other holding device 14b.
  • the Parts of the light barrier 16a, 16b and the two air nozzles 15 are like this arranged close together that the blown apart is not trigger the light barrier 16a, 16b in the glued corrugated cardboard areas.
  • the Triggering the light barrier 16a, 16b gives a signal to a first one Control circuit from which drives the laminating unit to Stopping the laminating unit or a servomotor for one Distance change from glue application roller to the glue squeeze roller Control of glue metering.
  • FIG. 2 shows the deflection roller 12 for the single-sided corrugated cardboard web 6d with two brackets 14a, 14b and one on each bracket 14a, 14b mounted air nozzles 15 and one along the corrugated board run behind the two air nozzles 15 arranged photocell 16b and one Laser 16a.
  • the guide roller 12 is in two bearings of the one-sided Shaft assembly frame 13 rotatably mounted.
  • the two camps are in Walls of the shaft assembly frame 13 inserted. In each of the Walls of the shaft assembly frame 13 is one of the brackets 14a intended.
  • the brackets 14a, 14b are along the Corrugated cardboard web width 13 adjustable.
  • the brackets 14a, 14b are adjustable so that the air nozzles 15 of each Long side of corrugated cardboard can be determined at a distance of approx. 5 cm are.
  • the position of the air nozzles 15 along the corrugated cardboard web width 13 adaptable to the paper web width just used.
  • the laser 16a or the photocell 16b are firmly connected to the associated air nozzle 15 and held by the brackets 14a, 14b.
  • Figure 3 shows a further embodiment of the invention one-sided shaft aggregate.
  • the shaft assembly frame 13 Between the two walls of the In this embodiment, the shaft assembly frame 13 is a rail 17 assembled. The two ends of the rail 17 are each one of the held two brackets 14a, 14b. On the rail 17 are two sled 18 driven by an electric motor. On the a carriage 18 is an air nozzle 15 and the photocell 16b on the the other air nozzle 15 and the laser 16a attached to another carriage. The two slides 18 can be moved in the longitudinal direction of the rail 17 and drivable. Each of the slides 18 has a further photocell 19, which is directed to the corrugated cardboard web 6d. Through the other two The width B of the corrugated cardboard web 6d can be determined by photocells 19.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

The manufacturing method has a corrugated web (6b) combined with a cover web (6c), with gas blown onto the longitudinal side edges of the corrugated paper web, for detecting areas in which the corrugated web and the cover web are not bonded together, for supplying signals to a control circuit for the manufacturing process. <??>An Independent claim for a corrugated paper web manufacturing plant is also included.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Wellpappe und ein Kaschierwerk zur Durchführung eines solchen Verfahrens.The invention relates to a method for producing corrugated cardboard and a Laminating unit for carrying out such a method.

Kaschierwerke und Verfahren zur Herstellung von Wellpappe sind im Stand der Technik bekannt. Die DE 43 07 520 beschreibt ein Verfahren zum Aufeinanderkaschieren von Papierbahn zur Herstellung von Wellpappe wobei der Feuchtegehalt wenigstens einer der beiden Papierbahnen bestimmt wird und die für den Kaschiervorgang benötigte Leimmenge entsprechend geregelt wird.Laminating plants and processes for the production of corrugated cardboard are in the State of the art known. DE 43 07 520 describes a method for laminating paper webs together for the production of Corrugated cardboard where the moisture content is at least one of the two Paper webs is determined and that required for the lamination process Glue quantity is regulated accordingly.

Die DE 31 38 673 betrifft eine Steuerung zum Ausrichten zweier laufender Papierbahnen. Dabei wird die relative Verschiebung der beiden Papierbahnen zueinander ermittelt und über entsprechende Einrichtungen ausgeglichen.DE 31 38 673 relates to a control for aligning two running Paper webs. The relative shift of the two Paper webs determined to each other and via appropriate facilities balanced.

Die gewählten Anfangseinstellungen hinsichtlich Anpreßdruck, Leimauftragmenge und so weiter müssen geprüft und gegebenenfalls sich ändernden äußeren Bedingungen angepaßt werden. Es entsteht beispielsweise das Problem, daß eine einmal gewählte Leimauftragsmenge etwa durch sich ändernden Feuchtegehalt der Umgebungsluft zu einem späteren Zeitpunkt nicht mehr für eine feste Klebeverbindung ausreichend ist. Die nicht verklebten Bereiche der Wellpappenbahn sind nicht weiter verwendbar.The selected initial settings with regard to contact pressure, Glue application quantity and so on must be checked and if necessary changing external conditions. It arises for example the problem that a once chosen Amount of glue applied, for example, by changing the moisture content of the Ambient air at a later time is no longer for a fixed Adhesive connection is sufficient. The non-glued areas of the Corrugated cardboard web can no longer be used.

Die EP-A-1 101 600 beschreibt ein Verfahren zur Qualitätserfassung von wellpappenbahnen, bei dem geometrische Merkmale der Wellpoppenbahn sensorisch erfasst werden.EP-A-1 101 600 describes a method for quality detection of corrugated cardboard webs, with the geometric characteristics of the Corrugated pop sheet can be sensed.

Aufgabe der vorliegenden Erfindung ist es, ein Verfahren zur Herstellung von Wellpappe zu verbessern und ein verbessertes Kaschierwerk zur Durchführung eines solchen Verfahrens bereitzustellen. The object of the present invention is a method for the production of corrugated cardboard and an improved laminating unit for To provide implementation of such a process.

Die Aufgabe wird durch ein Verfahren zur Herstellung von Wellpappe gelöst, in dem eine Wellenbahn auf eine Deckenbahn kaschiert wird, eine Wellpappenbahnlauflängsseite mit Gas angeblasen wird und ein Auseinandergehen der Wellenbahn der Deckenbahn in nicht verklebten Wellpappenbahnbereichen detektiert wird. Grundsätzlich ist das erfindungsgemäße Verfahren nicht nur auf eine Wellbahn und eine Deckenbahn anwendbar, sondern auf beliebige Papierbahnen, die aufeinander kaschiert werden. Insbesondere können auf die Wellenbahn und/oder die Deckenbahn bereits weitere Deckenbahnen und/oder Wellenbahnen kaschiert worden sein. Die durch den Kaschiervorgang entstandene Wellpappenbahn wird unmittelbar nach dem Kaschiervorgang mit Gas angeblasen. Günstigenfalls wird dazu Luft verwendet, die aus Luftdüsen strömt, die auf Längsseiten des Wellpappenbahnlaufs gerichtet sind. Sollten Wellpappenbahnbereiche nicht fest miteinander verklebt sein, bläst der Gasstrahl Wellenbahn und Deckenbahn auseinander. Die fehlerhaft kaschierten Bereiche werden schnell entdeckt, so daß allenfalls wenige Meter Wellpappenbahnausschuß produziert werden.The task is accomplished through a method of making corrugated cardboard solved by laminating a wave track onto a ceiling track, one Corrugated cardboard runway side is blown with gas and a Divergence of the wave track of the ceiling track in not glued Corrugated cardboard web areas is detected. Basically it is inventive method not only on a corrugated sheet and a Ceiling sheet applicable, but on any paper sheet that be laminated on top of each other. In particular, can on the wave track and / or the cover sheet already has further cover sheets and / or Wavy paths have been concealed. The through the lamination process The corrugated cardboard web is produced immediately after Laminated with gas. At best, there will be air used, which flows from air nozzles on the long sides of the Corrugated cardboard run are directed. Should corrugated areas not be firmly glued together, the gas jet blows wave path and Ceiling membrane apart. The incorrectly concealed areas will be quickly discovered, so that at most a few meters Corrugated board committee are produced.

Vorzugsweise werden das Auseinandergehen der Wellenbahn und der Deckenbahn durch geeignete Detektionsmittel detektiert und die Meßwerte ausgewertet und eine Klebstoffzufuhr wird erhöht und/oder der Vorschub der Wellenbahn oder Deckenbahn wird verringert. Dabei werden die detektierten Werte automatisch ausgewertet und beispielweise einer Steuerungsschaltung zugeführt. Die Steuerungsschaltung steuert automatisch entsprechende Mittel zu Erhöhung der Klebstoffzufuhr oder zur Verringerung des Vorschubs oder zur Ausgabe eines akustischen oder optischen Signals an. Möglicherweise kann nach Auswertung der Meßwerte der Kaschiervorgang auch gestoppt werden. Preferably, the divergence of the wave path and the Cover sheet detected by suitable detection means and the Measured values are evaluated and an adhesive supply is increased and / or the Feed of the wave track or ceiling track is reduced. In doing so the detected values are automatically evaluated and, for example, one Control circuit fed. The control circuit controls appropriate means to increase the glue supply or to reduce the feed or to output an acoustic or optical signal. Possibly after evaluation of the Measured values of the lamination process can also be stopped.

Vorzugsweise wird zunächst die Breite der Wellpappenbahn bestimmt und die Luftdüsen in eine Position neben der Wellpappenbahnlauflängsseite nachgeführt. Je nach Bedarf werden Papierbahnen unterschiedlicher Breite zur Herstellung einer entsprechenden Wellpappenbahn verwendet. Da die Düsen o.ä. nur einen wenige Zentimeter weitreichenden Wirkungsbereich haben, sollten die Luftdüsen in unmittelbarer Nähe der Wellpappenbahnlängsseite positioniert werden. Durch die Wahl unterschiedlicher Breiten der Papierrollen entsteht somit das Bedürfnis, die Düsen o.ä. entlang der Breite der Wellpappenbahn zur Längsseite der Wellpappenbahn nachzuführen.The width of the corrugated cardboard web is preferably first determined and the air nozzles in a position next to the long side of the corrugated cardboard tracked. Depending on your needs, paper webs become more different Width used to produce a corresponding corrugated cardboard. Since the nozzles or the like only a few centimeters Effective area, the air nozzles should be in the immediate vicinity of the Corrugated cardboard along the long side. By choice different widths of paper rolls, there is a need the nozzles or similar along the width of the corrugated cardboard web to the long side of the Track corrugated cardboard.

Die Aufgabe wird auch durch ein Kaschierwerk mit einer Walzenanordnung mit nebeneinander angeordneten gegenläufig drehbaren Walzen mit einer Einzugsseite und mit einer Auswurfsseite für eine Wellpappenbahn und wenigstens einem auswurfsseitig der Walzenanordnung angeordneten auf eine Längsseite eines Wellpappenbahnlaufs richtbaren Blasmittel zum Auseinanderblasen nicht verklebter Wellpappenbahnbereiche und neben der wenigstens einen Luftdüse angeordneten Mitteln zu Detektion der auseinandergeblasenen Wellpappenbahnbereiche gelöst.The task is also covered by a laminating unit Roller arrangement with oppositely arranged side by side rotatable rollers with a feed side and with an eject side for a corrugated cardboard web and at least one ejection side of the Roller arrangement arranged on a long side of a Corrugated cardboard directional blowing agent for blowing apart not glued corrugated cardboard web areas and next to the at least one Air nozzle arranged means for detection of the blown apart Corrugated cardboard web areas solved.

An der Auswurfsseite der Walzenanordnung ist in günstigenfalls geringer Entfernung von der Walzenanordnung wenigstens ein Blasmittel und damit zusammenwirkende Mittel zur Detektion der auseinandergeblasenen, nicht verklebten Wellpappenbereiche angeordnet. Das Blasmittel weist vorzugsweise eine Luftdüse auf. Die Luftdüse ist dabei derart gerichtet, daß ihr Luftstahl auf eine Längsseite des Wellpappenbahnlaufs zielt. Der Wellpappenbahnlauf ist derjenige Bereich zwischen den Walzen, den die eingelegten Papierbahnen bzw. die kaschierte Wellpappenbahn durchlaufen. Zur Erzielung einer hohen Zuverlässigkeit und Genauigkeit bei der Feststellung nicht verklebter Wellpappenbahnbereiche ist der Luftstahl der Luftdüse möglichst genau und andauernd auf eine Längsseite der durchlaufenden Wellpappenbahn gerichtet. Aufgrund der starken Bewegung der Wellpappenbahn während des Kaschiervorganges ist der Wellpappenbahnlauf grundsätzlich dicker als die Wellpappe. Vorzugsweise ist deshalb entlang des Wellpappenbahnlaufs zwischen des Auswurfsseite und der wenigsten einen Luftdüse eine Umlenkwalze entlang der Breite des Wellpappenbahnlaufs angeordnet. Die Umlenkwalze fixiert die Wellpappenbahn, die wenigstens eine Luftdüse ist genauer auf die eine Längsseite der Wellpappenbahn richtbar.On the ejection side of the roller arrangement is lower in the best case Distance from the roller assembly at least one blowing agent and cooperating means for the detection of the blown, not glued corrugated areas arranged. The blowing agent preferably has an air nozzle. The Air nozzle is directed so that its air steel on one long side of the corrugated cardboard run. The corrugated cardboard run is the one Area between the rollers that the inserted paper webs or run through the laminated corrugated cardboard web. To achieve a high Reliability and accuracy in finding non-glued Corrugated cardboard web areas is the air steel of the air nozzle as accurate as possible and continuously on one long side of the continuous corrugated cardboard web directed. Due to the strong movement of the corrugated board during of the lamination process, the corrugated cardboard web run is generally thicker than the corrugated cardboard. Therefore, preferably along the Corrugated cardboard run between the ejection side and the least an air nozzle a deflection roller along the width of the Corrugated cardboard run arranged. The deflection roller fixes the Corrugated cardboard web, the at least one air nozzle is more precise on one Longitudinal side of the corrugated cardboard can be straightened.

Die Detektionsmitteln weisen vorzugsweise eine Fotozelle und einen auf die Fotozelle gerichteten Laser auf. Die Position der wenigstens einen Luftdüse und/oder der Detektionsmittel ist vorzugsweise mittels einer Haltevorrichtung entlang der Wellpappenbahnlaufbreite einstellbar. Dabei ist der Laserstrahl so neben der Wellpappenbahn geführt, daß die auseinandergeblasene Wellpappe die Lichtschranke unterbricht. Die Haltevorrichtung weist beispielsweise zwei an gegenüberliegenden Wandungen eines Kaschierwerkrahmens im wesentlichen spiegelbildlich angeordnete Teile auf. Dabei kann eine Luftdüse mit dem Laser durch ein Teil der Haltevorrichtung im Bereich einer Längsseite der Wellpappenbahn und eine andere Luftdüse mit der Fotozelle durch ein anderes Teil der Haltevorrichtung im Bereich der anderen Seite der Wellpappenbahn einstellbar befestigt sein. Beide Teile der Haltevorrichtung können manuell einstellbar sein. Es ist auch möglich, daß die Detektionsmittel zwei Fotozellen aufweisen, wobei des Auseinanderblasen der Wellpappenbahn an den Längsseiten den Lichteinfall auf die Fotozellen in detektierbarer Weise ändert. The detection means preferably have a photocell and one the photocell is directed towards the laser. The position of at least one Air nozzle and / or the detection means is preferably by means of a Holding device adjustable along the corrugated cardboard running width. there the laser beam is guided next to the corrugated cardboard web that the blown corrugated cardboard interrupts the light barrier. The Holding device has, for example, two on opposite Walls of a laminating frame essentially mirror images arranged parts on. An air nozzle can pass through the laser with a Part of the holding device in the area of a long side of the corrugated cardboard web and another air nozzle with the photocell through another part of the Holding device in the area of the other side of the corrugated cardboard web be adjustably attached. Both parts of the holding device can be operated manually be adjustable. It is also possible that the detection means two Have photocells, blowing apart the corrugated cardboard web on the long sides, the incidence of light on the photocells is detectable Way changes.

Es ist aber auch denkbar, daß die Haltevorrichtung eine entlang der Wellpappenbahnlaufbreite angeordnete Schiene aufweist, an der das wenigstens eine Blasmittel und/oder Detektionsmittel verstellbar angeordnet sind. Dabei sind beide Enden der Schiene durch jeweils ein Teil einer Haltevorrichtung mit einem Kaschierwerkrahmen fest verbunden. Auf der Schiene sind beispielsweise zwei Schlitten verschiebbar angeordnet sein, wobei ein Schlitten eine Luftdüse und einen Laser und ein anderer Schlitten eine Luftdüse und eine Fotozelle aufweist. Auch hier sind Luftdüsen nur beispielhafte Ausgestaltungen der Blasemittel.But it is also conceivable that the holding device along the Corrugated cardboard running width arranged rail on which the at least one blowing agent and / or detection means adjustable are arranged. Both ends of the rail are each one Part of a holding device with a laminating frame connected. For example, there are two sledges on the rail be slidably disposed, a carriage an air nozzle and a Laser and another carriage has an air nozzle and a photo cell. Here too, air nozzles are only exemplary configurations of the Bladder means.

Grundsätzlich ist es auch denkbar zwei Laser und zwei Fotozellen vertauscht an den beiden Längsseiten der Wellpappenbahn anzuordnen.Basically, two lasers and two photocells are also conceivable interchanged on the two long sides of the corrugated cardboard.

In einer bevorzugten Ausführungsform der Erfindung weist das Kaschierwerk einen Antrieb zur Positionverstellung der Blasmittel und/oder der Detektionsmittel auf. Dieser Antrieb kann beispielsweise an den Schlitten vorgesehen sein.In a preferred embodiment of the invention, this Laminating unit a drive for adjusting the position of the blowing agent and / or the detection means. This drive can for example the sled be provided.

Die Walzenanordnung kann vertikal von oben nach unten angeordnet eine Anpreßwalze eine obere Riffelwalze und eine untere Riffelwalze aufweisen, wobei die Umlenkwalze horizontal neben der Anpreßwalze angeordnet ist. Es ist auch denkbar, daß die Walzen eine umgekehrte Reihenfolge aufweisen. Die obere und die untere Riffelwalze können einen ersten Walzenspalt, die Anpreßwalze und die obere Riffelwalze einen zweiten Walzenspalt ausbilden. Im zweiten Walzenspalt ist der eigentliche Kaschiervorgang durchführbar. The roller arrangement can be arranged vertically from top to bottom Pressure roller an upper corrugating roller and a lower corrugating roller have, the deflecting roller horizontally next to the pressure roller is arranged. It is also conceivable that the rollers are reversed Order. The upper and the lower corrugating roller can a first nip, the pressure roller and the upper corrugating roller form a second nip. In the second nip is the actual lamination process feasible.

Je nach Breite der verwendeten Papierrollen sollten das wenigstens eine Blasmittel und die Detektionsmittel auf eine entsprechende Wellpappenbahnbreite einstellbar sein. Dazu sind vorzugsweise mit der wenigstens einen Luftdüse und/oder Detektionsmitteln weitere Detektionsmittel verbunden, die zur Feststellung der Wellpappenbahnbreite auf den Wellpappenbahnlauf gerichtet sind. Die weiteren Detektionsmittel weisen vorzugsweise Fotozellen auf. Beim Nachführen der weiteren Detektionsmittel sind diese im Bereich der Längsseiten der Wellpappenbahn einer plötzlichen Änderung des Lichtseinfalls ausgesetzt. Die weiteren Detetktionsmittel sind vorzugsweise über eine erste Steuerschaltung mit dem Antrieb verbunden. Die Positionsverstellung des wenigstens einen Blasmittels und/oder der Detetktionsmittel ist somit automatisch durchführbar.Depending on the width of the paper rolls used, this should be at least one Blowing agent and the detection means to an appropriate Corrugated cardboard web width can be adjustable. These are preferably with the at least one air nozzle and / or detection means further Detection means connected to determine the Corrugated cardboard web width are directed to the corrugated cardboard web run. The further detection means preferably have photocells. At the Tracking the other detection means are in the range of Long sides of the corrugated cardboard web a sudden change in Exposed to light. The other means of detection are preferably via a first control circuit with the drive connected. The position adjustment of the at least one blowing agent and / or the detection means can thus be carried out automatically.

In einer bevorzugten Ausführungsform sind die Detektionsmittel mit einer zweiten Steuerschaltung für den Vorschub der Wellbahn und der Deckenbahn oder für die Klebstoffzufuhr verbunden.In a preferred embodiment, the detection means are with a second control circuit for the feed of the corrugated web and the Ceiling sheet or connected for glue supply.

Die Erfindung wird anhand von zwei Ausführungsbeispielen unter Bezugnahme auf drei Figuren beispielhaft erläutert. Dabei zeigen:

Figur 1
Querschnittzeichnung eines erfindungsgemäßen einseitigen Wellenaggregates,
Figur 2
perspektivische Ansicht einer ersten erfindungsgemäßen Anordnung von Luftdüsen und Detektionsmitteln und
Figur 3
perspektivische Ansicht einer zweiten erfindungsgemäßen Anordnung von Luftdüsen und Detektionsmitteln.
The invention is explained by way of example using two exemplary embodiments with reference to three figures. Show:
Figure 1
Cross-sectional drawing of a one-sided shaft assembly according to the invention,
Figure 2
Perspective view of a first arrangement of air nozzles and detection means and
Figure 3
perspective view of a second arrangement of air nozzles and detection means according to the invention.

Ein mittlerer Bereich des erfindungsgemäßen einseigen Wellenaggregates weist drei vertikal übereinander angeordnete Walzen 1, 2, 3 auf. Die unteren beiden Walzen haben einen gleichen Durchmesser. Die unterste Walze ist eine untere Riffelwalze 1 und die mittlere Walze eine obere Riffelwalze 2. Die oberste der drei Walzen ist eine Anpreßwalze 3. Eine Papierbahn ist von einer Papierrolle abrollbar und nach Ausrichtung durch erste Umlenkwalzen 4 über einen Befeuchter 5 führbar. Der Papierbahnlauf 6a ist durch eine durchbrochene Linie dargestellt. Die in das einseitige Wellenaggregat eingelegte Papierbahn verläuft im zugehörigen Papierbahnlauf. Der Verdampfer 5 befeuchtet die eine Papierbahn. Die befeuchtete eine Papierbahn ist leichter verformbar als eine trockene Papierbahn. Eine gute Klebeverbindung zwischen zwei Papierbahnen wird bei befeuchteter einen Papierbahn schon durch weniger Leim erzielt als zwischen zwei trockenen Papierbahnen.A central area of the single-shaft unit according to the invention has three rolls 1, 2, 3 arranged vertically one above the other. The lower two rollers have the same diameter. The bottom one The roller is a lower corrugating roller 1 and the middle roller is an upper one Corrugated roller 2. The topmost of the three rollers is a pressure roller 3. One Paper web can be unrolled from a paper roll and after alignment first deflecting rollers 4 can be guided via a humidifier 5. The Paper web run 6a is represented by a broken line. In the the paper web inserted on one side runs in the associated paper web run. The evaporator 5 humidifies one Paper web. The moistened paper web is easier to deform than a dry paper web. A good adhesive bond between two Paper webs are already through when a paper web is moistened achieved less glue than between two dry paper webs.

Die angefeuchtete eine Papierbahn wird einem ersten Walzenspalt zwischen oberer 2 und unterer Riffelwalze 1 zugeführt. Die obere und untere Riffelwalze weisen entlang der Walzenlängsrichtung Erhebungen und Absenkungen auf. Die Erhebungen und die Absenkungen der oberen 2 und der unteren 1 Riffelwalze greifen ineinander. Nach Durchgang der einen Papierbahn durch den ersten Walzenspalt ist die eine Papierbahn zur Wellenbahn 6b ausgeformt. Die Wellenbahn 6b weist im Längsquerschnitt ein Wellenmuster auf. Die Wellenbahn wird auf der oberen Riffelwalze 2 aufliegend etwa halb um sie herum zu einem zweiten Walzenspalt geführt. Der zweite Walzenspalt entsteht durch die zueinander beabstandete parallele Anordnung der oberen Riffelwalze 2 und der Anpreßwalze 3.The moistened paper web becomes a first nip fed between upper 2 and lower corrugating roller 1. The top and the lower corrugated roller has elevations along the longitudinal direction of the roller and reductions on. The rises and falls of the upper 2 and lower 1 corrugating roller mesh. To The passage of one paper web through the first nip is the a paper web is formed into the wave web 6b. The wave track 6b has a wave pattern in the longitudinal cross-section. The wave track is on the upper corrugating roller 2 lying about half around it to a second Roll nip guided. The second nip is created by the mutually spaced parallel arrangement of the upper corrugating roller 2 and the pressure roller 3.

Horizontal neben der oberen Riffelwalze 2 ist eine Leimauftragwalze 7 wellenbahnseitig vorgesehen. Die obere Riffelwalze 2 und die Leimauftragwalze 7 drehen sich gegenläufig. Die Leimauftragwalze 7 rollt Leim auf die Wellenkämme der auf der oberen Riffelwalze 2 aufliegenden Wellenbahn 6b ab. Die Leimauftragwalze 7 wirkt mit einer Leimabquetschwalze 8 zu Regulierung der Leimschichtdicke auf der Leimauftragwalze 7 und damit der auf die Kämme der Wellenbahn 6a aufgetragenen Leimmenge zusammen.A glue application roller 7 is located horizontally next to the upper corrugating roller 2 provided on the wave track side. The upper corrugating roller 2 and the Glue application roller 7 rotate in opposite directions. The glue application roller 7 rolls Glue on the crests of the waves lying on the upper corrugating roller 2 Wave track 6b. The glue application roller 7 acts with a Glue squeeze roller 8 to regulate the glue layer thickness on the Glue applicator roller 7 and thus on the crests of the shaft 6a applied amount of glue together.

Im zweiten Walzenspalt findet der eigentliche Kaschiervorgang statt. Hier wird die Wellenbahn 6b unter Druck auf eine Deckenbahn 6c geklebt. Die Deckenbahn 6c ist als andere Papierbahn von einer anderen Papierrolle abrollbar und über zweite Umlenkwalzen 7 dem zweiten Walzenspalt zuführbar. Ein Deckenbahnlauf ist ebenfalls als durchbrochene Linie dargestellt. Die obere Riffelwalze 2 und die Anpreßwalze 3 drehen sich gegenläufig und weisen eine Einzugsseite 10 für die Wellenbahn 6b und die Deckenbahn 6c auf. Die beiden nach Durchgang durch den zweiten Walzenspalt aufeinander kaschierten Bahnen werden auf einer Auswurfsseite 11 der Walzenanordnung 2,3 in Form einer einseitigen Wellpappenbahn 6d ausgeworfen. Ein Wellpappenbahnlauf ist ebenfalls als durchbrochene Linie dargestellt. Parallel zum zweiten Walzenspalt ist auswurfseitig eine Umlenkwalze 12 drehbar an einem Kaschierwerkrahmen 13 montiert. Die einseitige Wellpappenbahn wird derart um die Umlenkwalze geführt, daß die Deckenbahn mit einer Walzenoberfläche der Umlenkwalze 12 in Berührung steht. In Figur 1 läuft die einseitige Wellpappenbahn 6d im wesentlichen vertikal von der Umlenkwalze 12 nach oben.The actual lamination process takes place in the second nip. Here the wave track 6b is glued to a ceiling track 6c under pressure. The Cover web 6c is from another paper roll as another paper web unrollable and over the second deflection rollers 7 the second nip fed. A ceiling run is also a broken line shown. The upper corrugating roller 2 and the pressure roller 3 rotate opposite and have a feed side 10 for the wave track 6b and the cover sheet 6c. The two after passing through the second Roll nip laminated webs are on a Ejection side 11 of the roller assembly 2, 3 in the form of a one-sided Corrugated cardboard web 6d ejected. A corrugated cardboard run is also shown as a broken line. Is parallel to the second nip on the ejection side a deflecting roller 12 rotatable on a Laminating frame 13 mounted. The one-sided corrugated cardboard web will so guided around the deflection roller that the cover sheet with a Roll surface of the deflection roller 12 is in contact. In Figure 1 is running the one-sided corrugated cardboard web 6d substantially vertically from the Deflection roller 12 upwards.

In der Figur 1 ist oberhalb der Umlenkwalze am einseitigen Wellenaggregatrahmen in Bereichen der beiden Enden der Umlenkwalze je eine Haltevorrichtung 14a, 14b für Luftdüsen 15 angeordnet. Die Luftdüsen 15 sind derart ausgebildet, daß ein kräftiger Luftstrahl auf jede der Längsseiten der einseitigen Wellpappe 6d gerichtet ist. Wenn etwa aufgrund zu geringen Leimauftrags oder unzureichendem Anpreßdruck keine zufriedenstellende Klebeverbindung beim Kaschiervorgang erzielt wurde, entstehen insbesondere im Bereich der Wellpappenlängsseiten nicht verklebte Wellpappenbahnbereiche. Der aus den beiden Luftdüsen 15 tretende starke Luftstrahl bläst die Wellenbahn und die Deckenbahn in den nicht verklebten Wellpappenbahnbereichen der Wellpappenbahnlängsseiten auseinander. Neben den beiden Luftdüsen sind auf den zugehörigen Haltevorrichtungen 14a, 14b entlang des weiteren Laufs der Wellpappenbahn Teile einer Lichtschranke 16a, 16b vorgesehen. Ein Laser 16a der Lichtschranke wird von der einen Haltevorrichtung 14a gehalten. Der Laser 16a ist auf eine Fotozelle 16b gerichtet ist, die von der anderen Haltevorrichtung 14b gehalten wird. Die Teile der Lichtschranke 16a, 16b und die beiden Luftdüsen 15 sind so dicht nebeneinander angeordnet, daß die auseinander geblasenen nicht verklebten Wellpappenbereiche die Lichtschranke 16a, 16b auslösen. Die Auslösung der Lichtschranke 16a, 16b gibt ein Signal an eine erste Steuerungsschaltung ab, die einen Antrieb des Kaschierwerkes zum Anhalten des Kaschierwerks oder einen Stellmotor für eine Abstandsveränderung von Leimauftragwalze zur Leimabquetschwalze zur Leimdosierung ansteuert.In Figure 1 is above the deflection roller on one side Shaft assembly frame in the areas of the two ends of the deflection roller One holding device 14a, 14b each for air nozzles 15 is arranged. The Air nozzles 15 are designed such that a strong air jet on each the long sides of the single-sided corrugated cardboard 6d is directed. If about due to insufficient glue application or insufficient contact pressure no satisfactory adhesive connection achieved during the lamination process were created especially in the area of the long sides of corrugated cardboard areas of non-glued corrugated cardboard. The one from the two air vents 15 strong air jet blows in the wave track and the ceiling track the non-glued corrugated cardboard areas of the Long sides of corrugated cardboard web apart. Next to the two air vents are on the associated holding devices 14a, 14b along the further runs of the corrugated cardboard web parts of a light barrier 16a, 16b intended. A laser 16a of the light barrier is used by one Holding device 14a held. The laser 16a is on a photocell 16b is directed, which is held by the other holding device 14b. The Parts of the light barrier 16a, 16b and the two air nozzles 15 are like this arranged close together that the blown apart is not trigger the light barrier 16a, 16b in the glued corrugated cardboard areas. The Triggering the light barrier 16a, 16b gives a signal to a first one Control circuit from which drives the laminating unit to Stopping the laminating unit or a servomotor for one Distance change from glue application roller to the glue squeeze roller Control of glue metering.

Figur 2 zeigt die Umlenkwalze 12 für die einseitige Wellpappenbahn 6d mit zwei Halterungen 14a, 14b und je einer an jeder Halterung 14a, 14b montierten Luftdüsen 15 und einer entlang des Wellpappenbahnlaufs hinter den beiden Luftdüsen 15 angeordneten Fotozelle 16b und einem Laser 16a. Die Umlenkwalze 12 ist in zwei Lagern des einseitigen Wellenaggregatrahmens 13 drehbar gelagert. Die zwei Lager sind in Wandungen des Wellenaggregatrahmens 13 eingelassen. In jeder der Wandungen des Wellenaggregatrahmens 13 ist eine der Halterungen 14a vorgesehen. Die Halterungen 14a, 14b sind entlang der Wellpappenbahnbreite 13 verstellbar. Die Halterungen 14a, 14b sind derart verstellbar, daß die Luftdüsen 15 von jeder Wellpappenbahnlängsseite auf eine Entfernung von ca. 5 cm feststellbar sind. Die Position der Luftdüsen 15 entlang der Wellpappenbahnbreite 13 der gerade verwendeten Papierbahnbreite anpaßbar. Der Laser 16a bzw. die Fotozelle 16b sind fest mit der zugeordneten Luftdüse 15 verbunden und von den Halterungen 14a, 14b gehalten.FIG. 2 shows the deflection roller 12 for the single-sided corrugated cardboard web 6d with two brackets 14a, 14b and one on each bracket 14a, 14b mounted air nozzles 15 and one along the corrugated board run behind the two air nozzles 15 arranged photocell 16b and one Laser 16a. The guide roller 12 is in two bearings of the one-sided Shaft assembly frame 13 rotatably mounted. The two camps are in Walls of the shaft assembly frame 13 inserted. In each of the Walls of the shaft assembly frame 13 is one of the brackets 14a intended. The brackets 14a, 14b are along the Corrugated cardboard web width 13 adjustable. The brackets 14a, 14b are adjustable so that the air nozzles 15 of each Long side of corrugated cardboard can be determined at a distance of approx. 5 cm are. The position of the air nozzles 15 along the corrugated cardboard web width 13 adaptable to the paper web width just used. The laser 16a or the photocell 16b are firmly connected to the associated air nozzle 15 and held by the brackets 14a, 14b.

Figur 3 zeigt eine weitere Ausführungsform des erfindungsgemäßen einseitigen Wellenaggregates. Zwischen den beiden Wandungen des Wellenaggregatrahmens 13 ist in dieser Ausführungsform eine Schiene 17 montiert. Die beiden Enden der Schiene 17 werden von je einer der beiden Halterungen 14a, 14b gehalten. Auf die Schiene 17 sind zwei durch einen Elektromotor angetriebene Schlitten 18 gesetzt. Auf dem einen Schlitten 18 ist die eine Luftdüse 15 und die Fotozelle 16b auf dem andern Schlitten die andere Luftdüse 15 und der Laser 16a befestigt. Die beiden Schlitten 18 sind in Längsrichtung der Schiene 17 verschiebbar und antreibbar. Jeder der Schlitten 18 weist eine weitere Fotozelle 19 auf, die auf die Wellpappenbahn 6d gerichtet ist. Durch die beiden weiteren Fotozellen 19ist die Breite B der Wellpappenbahn 6d bestimmbar. Wenn die beiden Schlitten von den Wandungen aufeinander zulaufen, ändert sich im Bereich der Längsseiten der Wellpappenbahn 6d der Lichteinfall auf die beiden weiteren Fotozellen 19 schlagartig. Die beiden weiteren Fotozellen 19 sind über zweite Steuerungsschaltung mit den zugehörigen Antrieben der Schlitten auf der Schiene elektrisch verbunden.Figure 3 shows a further embodiment of the invention one-sided shaft aggregate. Between the two walls of the In this embodiment, the shaft assembly frame 13 is a rail 17 assembled. The two ends of the rail 17 are each one of the held two brackets 14a, 14b. On the rail 17 are two sled 18 driven by an electric motor. On the a carriage 18 is an air nozzle 15 and the photocell 16b on the the other air nozzle 15 and the laser 16a attached to another carriage. The two slides 18 can be moved in the longitudinal direction of the rail 17 and drivable. Each of the slides 18 has a further photocell 19, which is directed to the corrugated cardboard web 6d. Through the other two The width B of the corrugated cardboard web 6d can be determined by photocells 19. If the two slides converge from the walls, changes the incidence of light in the area of the long sides of the corrugated cardboard web 6d on the two other photocells 19 suddenly. The other two Photocells 19 are connected to the associated control circuit Drives of the sled on the rail electrically connected.

Claims (15)

  1. A method for producing corrugated cardboard in which
    a corrugated web (6b) is laminated onto a cover web (6c)
    gas is blown onto a longitudinal running side of the corrugated cardboard web and
    separation of the corrugated web (6b) from the cover web (6c) in non-adhered areas of the corrugated cardboard web is detected.
  2. A method for producing corrugated cardboard according to Claim 1, characterised in that measured values are evaluated and the supply of adhesive is increased and/or the advance of the corrugated web (6b) and the cover web (6c) is reduced and/or an acoustic and/or an optical signal is/are emitted.
  3. A method for producing corrugated cardboard according to Claim 1, characterised in that measured values are evaluated and the laminating procedure is stopped.
  4. A method for producing corrugated cardboard according to the preceding claims, characterised in that a width (B) of the corrugated cardboard web is determined and the blowing means (15) are subsequently guided into a position adjacent to the longitudinal running side of the corrugated cardboard web.
  5. A laminating machine for carrying out the methods according to Claims 1 to 4, having
    a roller arrangement (1, 2, 3) having adjacently arranged rollers which can rotate in opposite directions and having a draw-in side (10) and having an ejection side (11) for a corrugated cardboard web (6d) and
    at least one blowing means (15) for blowing apart non-adhered areas of the corrugated cardboard web, said blowing means being arranged on the ejection side of the roller arrangement (1, 2, 3) and being directable onto a longitudinal side of a course of the corrugated cardboard web and
    means (16a, 16b) for detecting blown-apart areas of the corrugated cardboard web, said means being arranged adjacent to the at least one blowing means (15).
  6. A laminating machine according to Claim 5, characterised in that, with respect to the course of the corrugated cardboard web (6d) between the ejection side (11) and the at least one blowing means (15), an idle roller (12) is arranged along a width of the corrugated cardboard web.
  7. A laminating machine according to Claim 5 or 6, characterised in that, with respect to the course of the corrugated cardboard web (6d), the at least one blowing means (15) is arranged between the detection means (16a, 16b) and the ejection side (11).
  8. A laminating machine according to Claims 5 to 7, characterised in that the position of the at least one blowing means (15) and/or detection means (16a, 16b) is adjustable along a width of the course of the corrugated cardboard web by means of a holding device (14a, 14b).
  9. A laminating machine according to Claim 8, characterised in that the holding device (14a, 14b) has a rail (17) which is arranged along the width of the course of the corrugated cardboard web and on which the at least one blowing means (15) and/or detection means (16a, 16b) are adjustably arranged.
  10. A laminating machine according to Claims 5 to 9, characterised by a drive for adjusting the position of the at least one blowing means (15) and/or detection means (16a, 16b).
  11. A laminating machine according to Claims 5 to 10, characterised in that further detection means (19) are connected to the at least one blowing means (15) and/or detection means (16a, 16b) and are directed onto the course of the corrugated cardboard web in order to determine a width (B) of the corrugated cardboard web.
  12. A laminating machine according to Claims 10 and 11, characterised in that the further detection means (19) are connected to the drive via a first control circuit.
  13. A laminating machine according to the preceding claims, characterised in that the detection means have a photocell (16b) and a laser (16a) directed onto the photocell (16b) which are each arranged on a longitudinal side of the course of the corrugated cardboard web.
  14. A laminating machine according to the preceding claims, characterised in that, arranged vertically from top to bottom, the roller arrangement (1, 2, 3) has a pressure roller (3), an upper grooved roller (2) and a lower grooved roller (1), and the idle roller (12) is arranged horizontally adjacent to the pressure roller (3).
  15. A laminating machine according to the preceding claims, characterised in that the detection means (16a, 16b) are in communication with a second control circuit for advancing the corrugated web (6a) and the cover web (6c) and/or for the adhesive supply.
EP02020371A 2001-09-27 2002-09-12 Method for producing corrugated paperboard and laminating mechanism for carrying out said method Expired - Lifetime EP1297947B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10147824 2001-09-27
DE10147824A DE10147824C1 (en) 2001-09-27 2001-09-27 Corrugated paper manufacturing method has areas of corrugated web and cover web which are not bonded together detected by blowing gas onto side edges of corrugated paper web

Publications (2)

Publication Number Publication Date
EP1297947A1 EP1297947A1 (en) 2003-04-02
EP1297947B1 true EP1297947B1 (en) 2004-11-10

Family

ID=7700594

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Application Number Title Priority Date Filing Date
EP02020371A Expired - Lifetime EP1297947B1 (en) 2001-09-27 2002-09-12 Method for producing corrugated paperboard and laminating mechanism for carrying out said method

Country Status (4)

Country Link
US (1) US20030084985A1 (en)
EP (1) EP1297947B1 (en)
AT (1) ATE281931T1 (en)
DE (2) DE10147824C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8574383B2 (en) * 2010-11-11 2013-11-05 Greif Packaging Llc Method and apparatus for determining blowout in a corrugation
CN102267252A (en) * 2011-07-28 2011-12-07 丘国慈 Novel manufacturing process for corrugated paper board
DE102015000191A1 (en) * 2015-01-03 2016-07-21 RSD - Industrietechnik GmbH Bonding control
CN111745982A (en) * 2020-06-12 2020-10-09 江西海川包装有限公司 Paperboard laminating device for paperboard processing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591654B2 (en) * 1980-10-02 1984-01-13 レンゴ−株式会社 Method and device for adjusting positional deviation of web material in corrugator
JPS62279931A (en) * 1986-05-29 1987-12-04 レンゴ−株式会社 Defective detector for single-sided corrugated board
DE4307520A1 (en) * 1993-03-10 1994-09-15 Casimir Kast Verpackung Und Di Method and device for laminating, in particular, packaging materials
CA2217801A1 (en) * 1996-11-01 1998-05-01 Kenneth L. Jones Improved apparatus and method for applying a viscous liquid to a material surface
DE19954301A1 (en) * 1999-11-11 2001-05-17 Bhs Corr Masch & Anlagenbau Process and plant for the production of at least 4-ply corrugated cardboard
DE19955917A1 (en) * 1999-11-20 2001-05-23 Bhs Corr Masch & Anlagenbau Plant for the production of a corrugated cardboard web

Also Published As

Publication number Publication date
US20030084985A1 (en) 2003-05-08
EP1297947A1 (en) 2003-04-02
ATE281931T1 (en) 2004-11-15
DE50201502D1 (en) 2004-12-16
DE10147824C1 (en) 2003-03-13

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