EP1101600A1 - Corrugated board manufacturing system - Google Patents

Corrugated board manufacturing system Download PDF

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Publication number
EP1101600A1
EP1101600A1 EP00123964A EP00123964A EP1101600A1 EP 1101600 A1 EP1101600 A1 EP 1101600A1 EP 00123964 A EP00123964 A EP 00123964A EP 00123964 A EP00123964 A EP 00123964A EP 1101600 A1 EP1101600 A1 EP 1101600A1
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EP
European Patent Office
Prior art keywords
sensor
corrugation
designed
sensors
corrugated cardboard
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Withdrawn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
EP00123964A
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German (de)
French (fr)
Inventor
Reinhard Sternitzke
Felix Titz
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
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BHS Corrugated Maschinen und Anlagenbau GmbH
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Publication date
Application filed by BHS Corrugated Maschinen und Anlagenbau GmbH filed Critical BHS Corrugated Maschinen und Anlagenbau GmbH
Publication of EP1101600A1 publication Critical patent/EP1101600A1/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28Making 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
    • B31F1/2831Control

Definitions

  • the invention relates to a system according to the preamble of the claim 1.
  • Plants for the production of corrugated cardboard webs, in particular for Production of corrugated cardboard sheets laminated on one side, that is, from a corrugated Paper web and a cover web are generally known for example from EP 0 687 552 A (corresponding to US Pat. No. 5,632,850) or DE 195 36 007 A (corresponding to GB 2,305,675 A).
  • EP 0 687 552 A corresponding to US Pat. No. 5,632,850
  • DE 195 36 007 A corresponding to GB 2,305,675 A.
  • the corrugation is not divided by the corrugation of the corrugated rollers predetermined division corresponds to that the corrugation tilts that the Glue between corrugated paper web and cover web is not sufficient is etc.
  • the invention has for its object a system of the generic type Art to design so that a recording of quality-determining Features of the corrugated cardboard web is possible.
  • Claims 2 to 6 represent configurations of sensors by means of one or more quality-determining features of the paper web be recorded.
  • the claims 7 and 8 give the quality determining Features again that are preferably recorded.
  • Claims 9 and 10 give possible further refinements of the quality recording device again.
  • a lower corrugating roller 2 and an upper one Corrugated roller 3 rotatably supported by means of shafts 4, 5. They point to each other parallel axes 6, 7. They are with them on their cylinder surfaces parallel to the axes 6, 7 extending corrugations 8, 9 provided in Comb the contact area 10 of the two corrugated rollers 2, 3 with one another.
  • One of the corrugating rollers 2, 3, namely usually the upper corrugating roller 3 is driven in the direction of rotation 12, while the other corrugating roller, Usually, the lower corrugating roller 2, in the direction of rotation 11 of the other corrugating roller 3 is taken.
  • a glue application device is arranged downstream of the contact area 10 13 arranged in the machine frame 1, the a glue application roller 14th has, which is adjustable against the corrugation 9 of the upper corrugating roller 3.
  • the application roller 14 is rotatable about an axis 15.
  • a pressure device 16 is located in the upper area of the upper corrugating roller provided that a first deflecting roller 17, a second deflecting roller 18th and has a pressure band 19.
  • the deflection rollers 17 and 18 are by means of Shaft journal 20 in bearings 21 of the machine frame 1 each by one Axle 22 rotatably supported and are from the upper corrugating roller 3 the pressure tape 19 taken.
  • the pressure belt 19 lies against the corrugation 9 of the upper corrugating roller 3 over a wrap angle a of approximately 90 ° and rotates in the same direction of rotation in accordance with the directional arrow 23.
  • the upper corrugating roller 3 can be heated from the inside in a conventional manner by means of steam, which is not shown.
  • the device works as follows: A paper web 24, which is provided with a corrugation 25 by the corrugations 8, 9, runs into the contact area 10 between the lower and the upper corrugating rollers 2, 3.
  • the tips 26 of the respective corrugation 25 are provided with glue in the glue application device 13.
  • the remaining areas of the corrugated paper web 24 are not glued.
  • a cover web 27 is fed, which is also made of paper and has the same width as the paper web 24.
  • This cover web 27 is introduced against the outside 28 of the pressure belt 19 and in the pressing area 29 defined by the wrap angle a of the Press tape 19 pressed against the tips 26 of the corrugated paper web 24 lying in the corrugation 9 of the upper corrugating roller 3 and connected to it.
  • the pressure belt 19 presses the cover web 27 against the corrugated paper web 24 with its smooth outer side 28.
  • the glue hardens very much due to the heat supplied by the corrugating roller 3 quickly out, so that the connection between corrugated paper web 24 and Cover sheet 27 is produced very quickly.
  • the fully glued corrugated cardboard sheet, which is laminated on one side with a cover sheet 27 30 runs together with the pressure belt 19 from the upper corrugating roller 3 and is with the pressure belt 19 partially around the second deflection roller 18 led around. From there it becomes one in the direction of transport 31 Not shown winding device supplied.
  • a first quality detection device 33 In the draw-off area 32 behind the deflection roller 18 there is a first quality detection device 33 arranged. This is shown in more detail in FIG. 2
  • Two laser sensors 34, 35 are provided on both sides the corrugated cardboard web 30 are arranged.
  • a sensor 34 is therefore the Cover web 27 assigned, while the other sensor 35 of the corrugated paper web 24 is assigned.
  • Both sensors 34, 35 are on inputs one Evaluation device 36 switched, its outputs in turn to the inputs a control device 37 are switched and that with a display device 36a is provided.
  • the control device 37 turns an electric motor 38 controlled, which is, for example, the drive motor of a the cross-cutter downstream of the production system, by means of which a path section is cut out which is not considered to be correct is detected. Such a section is cut out in a switch downstream of the cross cutter was eliminated.
  • the system is, for example, from EP 0 692 369 B1 (corresponding US Pat. No. 5,857,395), to which express reference
  • the device 33 works as follows: The sensor 34 constantly measures the distance a of the cover sheet 27 from the sensor 34. This distance a should be to be constant all the time; but it is not because the corrugated cardboard web 30 in a small amount Dimensions flutter. The sensor assigned to the corrugated paper web 24 35 continuously measures the distance b of the corrugation 25 from the sensor 35.
  • the values a and b are continuously fed to the evaluation device 36.
  • the distance c between the sensors 34 is permanently stored in the evaluation device 36, 35 from each other.
  • the target shape of the corrugation 25 caused by the corrugation 8, 9 is entered into the evaluation device 36 or from the selected normalized curl shapes selected there.
  • Adjacent tips 26 from each other can also be the speed the removed corrugated cardboard web 30 in the draw-off area 32 be determined in the evaluation device 36 and, if necessary, via the control device 37 can be corrected.
  • corresponding sensors can also be used are used, which scan the corrugated cardboard 3 or 4 by means of ultra-sound and use it to determine the values described.
  • FIG. 3 shows a second quality detection device 33 ', which has an acceleration sensor 39 which is operated by means of a button 40 with a predetermined force against that of the corrugated paper web 24 opposite side of the cover sheet 27 is present.
  • an acceleration sensor 39 which is operated by means of a button 40 with a predetermined force against that of the corrugated paper web 24 opposite side of the cover sheet 27 is present.
  • the cover sheet 27 at Passing the button 40 pressed in a little more than in the stiffer area the gluing 42.
  • the accelerometer 39 the distance g between two adjacent wave troughs 41, ie the Split the corrugation 25, record.

Abstract

The board is manufactured from a flat sheet (27) and waved sheet (24) having peaks (26) and troughs (41) glued to the flat sheet (42). The distance g between the peaks is monitored by sensors (34,35) and the speed of transport controlled to maintain a constant value.

Description

Die Erfindung betrifft eine Anlage nach dem Oberbegriff des Anspruches 1.The invention relates to a system according to the preamble of the claim 1.

Anlagen zur Herstellung von Wellpappebahnen, und zwar insbesondere zur Herstellung einseitig kaschierter Wellpappebahnen, die also aus einer gewellten Papierbahn und einer Deckbahn bestehen, sind allgemein bekannt, beispielsweise aus der EP 0 687 552 A (entsprechend US-Patent 5,632,850) oder der DE 195 36 007 A (entsprechend GB 2,305,675 A). Bei derartigen Maschinen kann es durch vielerlei mögliche Betriebsstörungen dazu kommen, daß die Qualität der Wellpappe nicht den Sollvorgaben entspricht, daß beispielsweise die Teilung der Wellung nicht der von der Riffelung der Riffelwalzen vorgegebenen Teilung entspricht, daß die Wellung kippt, daß die Verleimung zwischen gewellter Papierbahn und Deckbahn nicht ausreichend ist etc.Plants for the production of corrugated cardboard webs, in particular for Production of corrugated cardboard sheets laminated on one side, that is, from a corrugated Paper web and a cover web are generally known for example from EP 0 687 552 A (corresponding to US Pat. No. 5,632,850) or DE 195 36 007 A (corresponding to GB 2,305,675 A). With such Machines can be caused by many possible malfunctions, that the quality of the corrugated cardboard does not meet the target specifications that For example, the corrugation is not divided by the corrugation of the corrugated rollers predetermined division corresponds to that the corrugation tilts that the Glue between corrugated paper web and cover web is not sufficient is etc.

Der Erfindung liegt die Aufgabe zugrunde, eine Anlage der gattungsgemäßen Art so auszugestalten, daß eine Erfassung von qualitätsbestimmenden Merkmalen der Wellpappebahn möglich ist.The invention has for its object a system of the generic type Art to design so that a recording of quality-determining Features of the corrugated cardboard web is possible.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale im Kennzeichnungsteil des Anspruches 1 gelöst. Durch Erfassung mindestens eines qualitätsbestimmenden geometrischen Merkmales einer Wellpappebahn ist es möglich, die Qualität der fertig produzierten Wellpappebahn laufend zu erfassen und zu überwachen und gegebenenfalls durch einen Eingriff in den Produktionsprozeß wieder zu verbessern oder fehlerhafte Stücke herauszuschneiden und auszusondern.This object is achieved by the features in the labeling part of claim 1 solved. By recording at least one quality-determining one It is the geometric feature of a corrugated cardboard web possible to continuously improve the quality of the finished corrugated cardboard web record and monitor and if necessary by an intervention in the To improve the production process again or to cut out defective pieces and weed out.

Die Ansprüche 2 bis 6 geben Ausgestaltungen von Sensoren wieder, mittels derer ein oder mehrere qualitätsbestimmende Merkmale der Papierbahn erfaßt werden. Die Ansprüche 7 und 8 geben die qualitätsbestimmenden Merkmale wieder, die bevorzugt erfaßt werden. Die Ansprüche 9 und 10 geben mögliche weitere Ausgestaltungen der Qualitäts-Erfassungs-Einrichtung wieder.Claims 2 to 6 represent configurations of sensors by means of one or more quality-determining features of the paper web be recorded. The claims 7 and 8 give the quality determining Features again that are preferably recorded. Claims 9 and 10 give possible further refinements of the quality recording device again.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von zwei Ausführungsbeispielen der Erfindung anhand der Zeichnung. Es zeigen

Fig. 1
eine Maschine zur Herstellung einer einseitig kaschierten Wellpappebahn in einer vertikalen, teilweise aufgebrochenen Ansicht,
Fig. 2
eine erste Ausführungsform einer Qualitäts-Erfassungs-Einrichtung und
Fig. 3
eine zweite Ausführungsform einer Qualitäts-Erfassungs-Einrichtung.
Further features, advantages and details of the invention result from the following description of two exemplary embodiments of the invention with reference to the drawing. Show it
Fig. 1
a machine for producing a web of corrugated cardboard laminated on one side in a vertical, partially broken away view,
Fig. 2
a first embodiment of a quality detection device and
Fig. 3
a second embodiment of a quality detection device.

In einem Maschinengestell 1 sind eine untere Riffelwalze 2 und eine obere Riffelwalze 3 mittels Wellen 4, 5 drehbar gelagert. Sie weisen zueinander parallele Achsen 6, 7 auf. An ihren Zylinderoberflächen sind sie mit sich parallel zu den Achsen 6, 7 erstreckenden Riffelungen 8, 9 versehen, die im Berührungsbereich 10 der beiden Riffelwalzen 2, 3 miteinander kämmen. Eine der Riffelwalzen 2, 3 und zwar üblicherweise die obere Riffelwalze 3 ist in der Drehrichtung 12 angetrieben, während die andere Riffelwalze, üblicherweise also die untere Riffelwalze 2, in Drehrichtung 11 von der anderen Riffelwalze 3 mitgenommen wird. In Drehrichtung 11 bzw. 12 dem Berührungsbereich 10 nachgeordnet ist eine Leimauftragseinrichtung 13 im Maschinengestell 1 angeordnet, die eine Leim-Auftragswalze 14 aufweist, die gegen die Riffelung 9 der oberen Riffelwalze 3 zustellbar ist. Die Auftragswalze 14 ist um eine Achse 15 drehbar.In a machine frame 1 there are a lower corrugating roller 2 and an upper one Corrugated roller 3 rotatably supported by means of shafts 4, 5. They point to each other parallel axes 6, 7. They are with them on their cylinder surfaces parallel to the axes 6, 7 extending corrugations 8, 9 provided in Comb the contact area 10 of the two corrugated rollers 2, 3 with one another. One of the corrugating rollers 2, 3, namely usually the upper corrugating roller 3 is driven in the direction of rotation 12, while the other corrugating roller, Usually, the lower corrugating roller 2, in the direction of rotation 11 of the other corrugating roller 3 is taken. In the direction of rotation 11 or 12 A glue application device is arranged downstream of the contact area 10 13 arranged in the machine frame 1, the a glue application roller 14th has, which is adjustable against the corrugation 9 of the upper corrugating roller 3. The application roller 14 is rotatable about an axis 15.

Im oberen Bereich der oberen Riffelwalze ist eine Anpreß-Einrichtung 16 vorgesehen, die eine erste Umlenkwalze 17, eine zweite Umlenkwalze 18 und ein Anpreßband 19 aufweist. Die Umlenkwalzen 17 und 18 sind mittels Wellenzapfen 20 in Lagern 21 des Maschinengestells 1 jeweils um eine Achse 22 drehbar gelagert und werden von der oberen Riffelwalze 3 über das Anpreßband 19 mitgenommen.A pressure device 16 is located in the upper area of the upper corrugating roller provided that a first deflecting roller 17, a second deflecting roller 18th and has a pressure band 19. The deflection rollers 17 and 18 are by means of Shaft journal 20 in bearings 21 of the machine frame 1 each by one Axle 22 rotatably supported and are from the upper corrugating roller 3 the pressure tape 19 taken.

Wie Fig. 1 entnehmbar ist, liegt das Anpreßband 19 über einen Umschlingungswinkel a von etwa 90° gegen die Riffelung 9 der oberen Riffelwalze 3 an und läuft drehrichtungsgleich mit dieser entsprechend dem Richtungspfeil 23 um. Die obere Riffelwalze 3 ist in konventioneller Weise von innen her mittels Dampf beheizbar, was nicht dargestellt ist.
Die Wirkungsweise der Vorrichtung ist wie folgt:
In den Berührungsbereich 10 zwischen der unteren und der oberen Riffelwalze 2, 3 läuft eine Papierbahn 24 ein, die durch die Riffelungen 8, 9 mit einer Wellung 25 versehen wird. Die Spitzen 26 der jeweiligen Wellung 25 werden in der Leimauftragseinrichtung 13 mit Leim versehen. Die übrigen Bereiche der gewellten Papierbahn 24 werden nicht beleimt. Über die erste Umlenkwalze 17 wird eine Deckbahn 27 zugeführt, die ebenfalls aus Papier besteht und die gleiche Breite hat wie die Papierbahn 24. Diese Deckbahn 27 wird gegen die Außenseite 28 des Anpreßbandes 19 eingeführt und in dem durch den Umschlingungswinkel a definierten Anpreßbereich 29 von dem Anpreßband 19 gegen die Spitzen 26 der in der Riffelung 9 der oberen Riffelwalze 3 liegenden gewellten Papierbahn 24 gedrückt und mit dieser verbunden. Das Anpreßband 19 preßt hierbei mit seiner glatten Außenseite 28 die Deckbahn 27 gegen die gewellte Papierbahn 24.
As can be seen in FIG. 1, the pressure belt 19 lies against the corrugation 9 of the upper corrugating roller 3 over a wrap angle a of approximately 90 ° and rotates in the same direction of rotation in accordance with the directional arrow 23. The upper corrugating roller 3 can be heated from the inside in a conventional manner by means of steam, which is not shown.
The device works as follows:
A paper web 24, which is provided with a corrugation 25 by the corrugations 8, 9, runs into the contact area 10 between the lower and the upper corrugating rollers 2, 3. The tips 26 of the respective corrugation 25 are provided with glue in the glue application device 13. The remaining areas of the corrugated paper web 24 are not glued. About the first deflecting roller 17, a cover web 27 is fed, which is also made of paper and has the same width as the paper web 24. This cover web 27 is introduced against the outside 28 of the pressure belt 19 and in the pressing area 29 defined by the wrap angle a of the Press tape 19 pressed against the tips 26 of the corrugated paper web 24 lying in the corrugation 9 of the upper corrugating roller 3 and connected to it. The pressure belt 19 presses the cover web 27 against the corrugated paper web 24 with its smooth outer side 28.

Durch die von der Riffelwalze 3 zugeführte Wärme härtet der Leim sehr schnell aus, so daß die Verbindung zwischen gewellter Papierbahn 24 und Deckbahn 27 sehr schnell hergestellt wird.The glue hardens very much due to the heat supplied by the corrugating roller 3 quickly out, so that the connection between corrugated paper web 24 and Cover sheet 27 is produced very quickly.

Die fertig verleimte, einseitig mit einer Deckbahn 27 kaschierte Wellpappebahn 30 läuft zusammen mit dem Anpreßband 19 von der oberen Riffelwalze 3 ab und wird mit dem Anpreßband 19 teilweise um die zweite Umlenkwalze 18 herumgeführt. Von dort wird sie in Transportrichtung 31 einer nicht dargestellten Aufwickeleinrichtung zugeführt.The fully glued corrugated cardboard sheet, which is laminated on one side with a cover sheet 27 30 runs together with the pressure belt 19 from the upper corrugating roller 3 and is with the pressure belt 19 partially around the second deflection roller 18 led around. From there it becomes one in the direction of transport 31 Not shown winding device supplied.

Im Abzugsbereich 32 hinter der Umlenkwalze 18 ist eine erste Qualitäts-Erfassungs-Einrichtung 33 angeordnet. Bei dieser in Fig. 2 genauer dargestellten Einrichtung sind zwei Laser-Sensoren 34, 35 vorgesehen, die beiderseits der Wellpappebahn 30 angeordnet sind. Ein Sensor 34 ist also der Deckbahn 27 zugeordnet, während der andere Sensor 35 der gewellten Papierbahn 24 zugeordnet ist. Beide Sensoren 34, 35 sind auf Eingänge eines Auswerte-Gerätes 36 geschaltet, dessen Ausgänge wiederum auf die Eingänge eines Steuer-Gerätes 37 geschaltet sind und das mit einem Anzeige-Gerät 36a versehen ist. Vom Steuer-Gerät 37 wird ein Elektro-Motor 38 angesteuert, bei dem es sich beispielsweise um den Antriebsmotor eines in der Produktions-Anlage nachgeordneten Querschneiders handeln kann, mittels dessen ein Bahnabschnitt herausgeschnitten wird, der als nicht ordnungsgemäß erfaßt wird. Ein solcher herausgeschnittener Abschnitt wird in einer dem Querschneider nachgeordneten Weiche ausgeschieden. Eine derartige Anlage ist beispielsweise aus der EP 0 692 369 B1 (entsprechend US-PS 5,857,395) bekannt, worauf ausdrücklich verwiesen wird.In the draw-off area 32 behind the deflection roller 18 there is a first quality detection device 33 arranged. This is shown in more detail in FIG. 2 Two laser sensors 34, 35 are provided on both sides the corrugated cardboard web 30 are arranged. A sensor 34 is therefore the Cover web 27 assigned, while the other sensor 35 of the corrugated paper web 24 is assigned. Both sensors 34, 35 are on inputs one Evaluation device 36 switched, its outputs in turn to the inputs a control device 37 are switched and that with a display device 36a is provided. The control device 37 turns an electric motor 38 controlled, which is, for example, the drive motor of a the cross-cutter downstream of the production system, by means of which a path section is cut out which is not considered to be correct is detected. Such a section is cut out in a switch downstream of the cross cutter was eliminated. Such The system is, for example, from EP 0 692 369 B1 (corresponding US Pat. No. 5,857,395), to which express reference is made.

Die Einrichtung 33 arbeitet wie folgt: Der Sensor 34 mißt ständig den Abstand a der Deckbahn 27 vom Sensor 34. Dieser Abstand a sollte zwar ständig konstant sein; er ist es aber nicht, da die Wellpappebahn 30 in geringem Maße flattert. Der der gewellten Papierbahn 24 zugeordnete Sensor 35 mißt fortlaufend den Abstand b der Wellung 25 vom Sensor 35.The device 33 works as follows: The sensor 34 constantly measures the distance a of the cover sheet 27 from the sensor 34. This distance a should be to be constant all the time; but it is not because the corrugated cardboard web 30 in a small amount Dimensions flutter. The sensor assigned to the corrugated paper web 24 35 continuously measures the distance b of the corrugation 25 from the sensor 35.

Die Werte a und b werden fortlaufend dem Auswerte-Gerät 36 zugeführt. Fest im Auswerte-Gerät 36 gespeichert ist der Abstand c der Sensoren 34, 35 voneinander. Eingegeben werden für einen Produktionsvorgang weiterhin die Dicke d der Deckbahn 27 und die Dicke e der gewellten Papierbahn 24. Außerdem wird die Soll-Form der Wellung 25, die durch die Riffelung 8, 9 vorgegeben ist, in das Auswerte-Gerät 36 eingegeben bzw. aus den dort gespeicherten normierten Wellungsformen ausgewählt. Die jeweilige Höhe f der Wellung 25, das heißt ihre doppelte Amplitude, wird dann nach der Gleichung f = c - a - b - d errechnet, wobei die Höhe f jeweils an den außen liegenden Spitzen 26 und den Wellentälern 41 der Wellung 25 gemessen wird. Diese Werte werden fortlaufend jeweils mit den im Auswerte-Gerät 36 gespeicherten Werten verglichen. Bei Abweichungen von den gespeicherten Werten erfolgt eine Ansteuerung über das Steuer-Gerät 37 auf den Motor 38. Durch die geschilderte Erfassung der Höhe f der Wellung 25 und ihren Vergleich mit der vorgegebenen Soll-Wellung wird die Qualität der Wellpappe erfaßt, beispielsweise ob die Wellung sogenannte Kipper aufweist, wie sie in Fig. 2 als Wellung 25' dargestellt ist. Im übrigen werden alle relevanten Werte ständig im Anzeige-Gerät 36a angezeigt.The values a and b are continuously fed to the evaluation device 36. The distance c between the sensors 34 is permanently stored in the evaluation device 36, 35 from each other. You continue to be entered for a production process the thickness d of the cover web 27 and the thickness e of the corrugated paper web 24. In addition, the target shape of the corrugation 25 caused by the corrugation 8, 9 is entered into the evaluation device 36 or from the selected normalized curl shapes selected there. The respective The height f of the corrugation 25, that is to say its double amplitude, is then reduced to of the equation f = c - a - b - d, where the height f corresponds to the outer peaks 26 and the troughs 41 of the corrugation 25 measured becomes. These values are continuously updated with those in the evaluation device 36 saved values compared. In the event of deviations from the stored values are controlled via the control device 37 on the motor 38. By the described detection of the height f of the corrugation 25 and their comparison with the predetermined target corrugation Quality of the corrugated cardboard recorded, for example whether the corrugation so-called Tipper has, as shown in Fig. 2 as corrugation 25 '. Furthermore all relevant values are continuously displayed in the display device 36a.

Durch Zählen der Spitzen 26, also der Maxima von f, und durch entsprechenden Vergleich mit den gespeicherten Sollwerten für den Abstand g benachbarter Spitzen 26 voneinander, also die Teilung, kann auch die Geschwindigkeit der abgezogenen Wellpappebahn 30 im Abzugsbereich 32 im Auswerte-Gerät 36 ermittelt werden und gegebenenfalls über das Steuer-Gerät 37 korrigiert werden.By counting the peaks 26, i.e. the maxima of f, and by corresponding Comparison with the stored target values for the distance g Adjacent tips 26 from each other, that is the division, can also be the speed the removed corrugated cardboard web 30 in the draw-off area 32 be determined in the evaluation device 36 and, if necessary, via the control device 37 can be corrected.

Anstelle der Laser-Sensoren 34, 35 können auch entsprechende Sensoren eingesetzt werden, die die Wellpappe 3 bzw. 4 mittels Ultra-Schall abtasten und daraus die geschilderten Werte ermitteln.Instead of the laser sensors 34, 35, corresponding sensors can also be used are used, which scan the corrugated cardboard 3 or 4 by means of ultra-sound and use it to determine the values described.

In Fig. 3 ist eine zweite Qualitäts-Erfassungs-Einrichtung 33' dargestellt, die einen Beschleunigungs-Aufnehmer 39 aufweist, der mittels eines Tasters 40 mit einer vorgegebenen Kraft gegen die der gewellten Papierbahn 24 abgewandte Seite der Deckbahn 27 anliegt. Zwischen zwei Wellentälern 41 der Wellung 25, wo sich auch die Verleimung 42 zwischen gewellter Papierbahn 24 und Deckbahn 27 befindet, wird die Deckbahn 27 beim Vorbeilaufen am Taster 40 etwas stärker eingedrückt als im steiferen Bereich der Verleimung 42. Auf diese Weise kann der Beschleunigungs-Aufnehmer 39 den Abstand g zweier benachbarter Wellentäler 41, also die Teilung der Wellung 25, erfassen. Aus dem Wert der quer zur Längsrichtung der Deckbahn 27 gerichteten, vom Beschleunigungs-Aufnehmer 39 erfaßten Beschleunigungen kann im Vergleich zu einem Sollwert auf die Qualität der Verleimung 42 geschlossen werden. Je besser die Verleimung 42 ist, um so größer ist die Beschleunigung des Tasters 40 zwischen zwei benachbarten Verleimungen 42. Wenn keine Verleimung vorhanden ist, erfolgt keine bzw. keine nennenswerte Beschleunigung des Tasters 40, so daß eine nicht vorhandene Verleimung exakt erfaßt wird.3 shows a second quality detection device 33 ', which has an acceleration sensor 39 which is operated by means of a button 40 with a predetermined force against that of the corrugated paper web 24 opposite side of the cover sheet 27 is present. Between two wave valleys 41 of the corrugation 25, where the gluing 42 between corrugated Paper web 24 and cover sheet 27 is located, the cover sheet 27 at Passing the button 40 pressed in a little more than in the stiffer area the gluing 42. In this way the accelerometer 39 the distance g between two adjacent wave troughs 41, ie the Split the corrugation 25, record. From the value of the cross to the longitudinal direction the cover sheet 27 directed by the acceleration sensor 39 Accelerations recorded can be compared to a setpoint on the Quality of the gluing 42 can be closed. The better the gluing 42, the greater the acceleration of the button 40 between two neighboring gluing 42. If there is no gluing, there is no or no appreciable acceleration of the button 40, so that a non-existing gluing is recorded exactly.

Auch bei dieser Einrichtung 33' gehen die vom Beschleunigungs-Aufnehmer 39 gemessenen Signale zu einem Auswerte-Gerät 36' und von dort zu einem Steuer-Gerät 37, das beispielsweise den Elektro-Motor 38 ansteuert, über den ein Herausschneiden und Ausschleusen eines fehlerhaften Bahnabschnittes ausgelöst wird, und zwar wie es oben für die erste Qualitäts-Erfassungs-Einrichtung 33 angegeben ist.With this device 33 ', too, they go from the accelerometer 39 measured signals to an evaluation device 36 'and from there to a control device 37 which, for example, the electric motor 38 controls via which a faulty one is cut out and discharged Path section is triggered, as above for the first Quality detection device 33 is specified.

Claims (10)

Anlage zur Herstellung einer Wellpappebahn (30) mit einer glatten Deckbahn (27) und mit einer gewellten Bahn (24), die mit einer eine Teilung g aufweisenden Wellung (25) mit Spitzen (26) und Wellentälern (41) versehen und im Bereich der Wellentäler (41) mit der Deckbahn (27) verleimt ist, dadurch gekennzeichnet, daß eine Qualitäts-Erfassungs-Einrichtung (33; 33') mit mindestens einem mindestens ein geometrisches Merkmal der Wellpappebahn (30) erfassenden Sensor (34, 35; 39) vorgesehen ist und daß dem mindestens einen Sensor (34, 35; 39) ein Auswerte-Gerät (36, 36') nachgeschaltet ist. Plant for the production of a corrugated cardboard web (30) with a smooth cover sheet (27) and with a corrugated sheet (24), with a corrugation (25) with a division g with tips (26) and Wave valleys (41) and is glued to the cover sheet (27) in the area of the troughs (41), characterized by that a quality detection device (33; 33 ') is provided with at least one sensor (34, 35; 39) which detects at least one geometric feature of the corrugated cardboard web (30) and that the at least one sensor (34, 35; 39) is followed by an evaluation device (36, 36 '). Anlage nach Anspruch 1, dadurch gekennzeichnet,
daß der mindestens eine Sensor (34, 35) berührungslos arbeitend ausgebildet ist.
System according to claim 1, characterized in
that the at least one sensor (34, 35) is designed to operate without contact.
Anlage nach Anspruch 2, dadurch gekennzeichnet,
daß beiderseits der Wellpappebahn (30) zwei Sensoren (34, 35) angeordnet sind,
von denen ein erster Sensor (34) den Abstand a der Deckbahn (27) von dem ersten Sensor (34) messend ausgebildet ist und
System according to claim 2, characterized in
that two sensors (34, 35) are arranged on both sides of the corrugated cardboard web (30),
of which a first sensor (34) is designed to measure the distance a of the cover sheet (27) from the first sensor (34) and
Anlage nach Anspruch 3, dadurch gekennzeichnet, daß die Sensoren als Laser-Sensoren (34, 35) ausgebildet sind.System according to claim 3, characterized in that the sensors are designed as laser sensors (34, 35). Anlage nach Anspruch 1, dadurch gekennzeichnet, daß der Sensor (39) einen die Deckbahn (27) berührenden Taster (40) aufweist.System according to claim 1, characterized in that the sensor (39) has a button (40) touching the cover sheet (27). Anlage nach Anspruch 5, dadurch gekennzeichnet, daß der Sensor als Beschleunigungs-Aufnehmer (39) ausgebildet ist.System according to claim 5, characterized in that the sensor is designed as an acceleration sensor (39). Anlage nach Anspruch 1, dadurch gekennzeichnet, daß der mindestens eine Sensor (34, 35; 39) die Teilung g aufnehmend ausgebildet ist.System according to Claim 1, characterized in that the at least one sensor (34, 35; 39) is designed to accommodate the division g. Anlage nach Anspruch 3, dadurch gekennzeichnet, daß die Sensoren (34, 35) die Form der Wellung (25, 25') erfassend ausgebildet sind.System according to claim 3, characterized in that the sensors (34, 35) are designed to detect the shape of the corrugation (25, 25 '). Anlage nach Anspruch 1, dadurch gekennzeichnet, daß dem Auswerte-Gerät (36, 36') ein Anzeige-Gerät (36a) zugeordnet ist.System according to claim 1, characterized in that a display device (36a) is assigned to the evaluation device (36, 36 '). Anlage nach Anspruch 1, dadurch gekennzeichnet, daß dem Auswerte-Gerät (36, 36') ein Steuer-Gerät (37) nachgeordnet ist.System according to claim 1, characterized in that a control device (37) is arranged downstream of the evaluation device (36, 36 ').
EP00123964A 1999-11-20 2000-11-03 Corrugated board manufacturing system Withdrawn EP1101600A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999155917 DE19955917A1 (en) 1999-11-20 1999-11-20 Plant for the production of a corrugated cardboard web
DE19955917 1999-11-20

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EP1101600A1 true EP1101600A1 (en) 2001-05-23

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EP1297947A1 (en) * 2001-09-27 2003-04-02 Wepoba Wellpappenfabrik GmbH & Co. KG Method for producing corrugated paperboard and laminating mechanism for carrying out said method
CN107405857A (en) * 2015-04-02 2017-11-28 Bhs波纹机械和设备制造有限公司 For the equipment for the quality for determining corrugated cardboard width
CN107438517A (en) * 2015-04-14 2017-12-05 Bhs波纹机械和设备制造有限公司 System for manufacturing corrugated cardboard width

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ITUB20153309A1 (en) * 2015-08-31 2017-03-03 Fosber Spa PLANT AND METHOD FOR THE PRODUCTION OF CORRUGATED CARDBOARD WITH BONDING DEFECTS DETECTOR

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CN107405857A (en) * 2015-04-02 2017-11-28 Bhs波纹机械和设备制造有限公司 For the equipment for the quality for determining corrugated cardboard width
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CN107438517A (en) * 2015-04-14 2017-12-05 Bhs波纹机械和设备制造有限公司 System for manufacturing corrugated cardboard width

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DE19955917A1 (en) 2001-05-23

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