EP0541953A1 - Method and apparatus for manufacturing corrugated paperboard with variable format - Google Patents

Method and apparatus for manufacturing corrugated paperboard with variable format Download PDF

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Publication number
EP0541953A1
EP0541953A1 EP92117024A EP92117024A EP0541953A1 EP 0541953 A1 EP0541953 A1 EP 0541953A1 EP 92117024 A EP92117024 A EP 92117024A EP 92117024 A EP92117024 A EP 92117024A EP 0541953 A1 EP0541953 A1 EP 0541953A1
Authority
EP
European Patent Office
Prior art keywords
web
corrugated cardboard
cross
cutting
format
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92117024A
Other languages
German (de)
French (fr)
Other versions
EP0541953B1 (en
Inventor
Lothar Jobst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BHS Corrugated Maschinen und Anlagenbau GmbH
Original Assignee
BHS Bayerische Berg Hutten und Salzwerke AG
BHS Corrugated Maschinen und Anlagenbau GmbH
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Filing date
Publication date
Application filed by BHS Bayerische Berg Hutten und Salzwerke AG, BHS Corrugated Maschinen und Anlagenbau GmbH filed Critical BHS Bayerische Berg Hutten und Salzwerke AG
Publication of EP0541953A1 publication Critical patent/EP0541953A1/en
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D11/00—Combinations of several similar cutting apparatus
    • 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
    • B31F1/2822—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 involving additional operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0068—Trimming and removing web edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D11/00—Combinations of several similar cutting apparatus
    • B26D2011/005—Combinations of several similar cutting apparatus in combination with different kind of cutters, e.g. two serial slitters in combination with a transversal cutter
    • 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
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0207—Other than completely through work thickness or through work presented
    • Y10T83/0215—Including use of rotary scoring blade
    • Y10T83/0222—Plural independent rotary scoring blades
    • 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
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0207—Other than completely through work thickness or through work presented
    • Y10T83/023—With infeeding of work
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • Y10T83/0538—Repetitive transverse severing from leading edge of work
    • Y10T83/0548—With longitudinal severing
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • Y10T83/0538—Repetitive transverse severing from leading edge of work
    • Y10T83/0548—With longitudinal severing
    • Y10T83/0562—Prior to transverse severing
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0581—Cutting part way through from opposite sides of work
    • 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
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6476—Including means to move work from one tool station to another
    • Y10T83/6489—Slitter station
    • 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
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type

Definitions

  • the corrugated cardboard web is separated from a heating and pulling device at a predetermined working speed when the format for the corrugated cardboard sheets to be produced is divided by a cross cutter over the entire web width.
  • the remaining web for a certain number of sheets in a batch is accelerated.
  • the corrugated cardboard web coming in from the heating and pulling device is slowed down. This creates a gap between the remaining web and the new web.
  • slitting and creasing devices and cross cutters are converted to the new format.
  • the disadvantage here is that the remaining web and the new web are not exposed to a train in the conveying direction and are therefore not adequately guided.
  • the invention is based on the object of specifying a method for producing corrugated cardboard sheets with a changeable format and an apparatus for carrying out this method, as a result of which only a minimal waste occurs in the high-speed range when the format is changed.
  • the corrugated cardboard web area running off may not contain any incorrect sheets in the batch.
  • the corrugated cardboard web 2 is conveyed out of the heating and pulling device 3 in the direction of the arrow I indicated.
  • the corrugated cardboard web 2 forms e.g. double-sided or double-double corrugated cardboard.
  • the corrugated cardboard web 2 then arrives at a cross cutter 4. This is only used to cut out waste from the corrugated cardboard web 2 at the start of production or during production.
  • the corrugated cardboard web 2 then reaches a transfer table 5.
  • the subsequent cross-cutting device 6 cuts the corrugated cardboard web 2 laterally in the edge region over a predetermined length. This cutting length is preferably selected in accordance with the difference between the maximum and the minimum web width to be processed on the system.
  • the corrugated cardboard web 2 which is not completely cut transversely, then reaches at least one, in the exemplary embodiment two longitudinal cutting and creasing devices 10 arranged one behind the other. These longitudinal cutting and creasing devices 10 work alternately.
  • the cutting or creasing tools of the non-working device 10 are set to the format of a new batch of sheets. With "format change", i.e. after reaching a predetermined number of corrugated cardboard sheets with a certain format, the tools of the slitting and creasing device 10 previously working are disengaged and the tools of the other slitting and creasing device 10, which have not been working so far, are engaged.
  • the working longitudinal cutting and creasing device 10 also cuts the continuous corrugated cardboard web 2 laterally. Arise Edge strips. Between these, the slitting or creasing tools are arranged according to the selected format.
  • Each longitudinal cutting and creasing device 10 is assigned a removal device 11 for the edge strips. These convey the edge strips into waste containers (not shown). Suction devices are preferably used for the removal device 11. So that the respective edge strip is conveyed away safely, these discharge devices 11 can be adjusted transversely depending on the format and therefore the width of the longitudinal strip.
  • the cross cutting device 6 When changing the format, the cross cutting device 6 is switched on. The necessary transverse partial section from the longitudinal edges of the web inwards is carried out over a suitable length when the web length corresponding to the predetermined batch number has passed through the cross-cutting device 6. The edge strips divided in this way can be removed by the removal device 11.
  • a pulling device 12 which exerts a constant pull on the continuous corrugated cardboard web 2.
  • the railway line from the heating and drying device 3 to this pulling device 12 thus remains guided because it is not completely cut transversely. The necessary cuts or scoring can thus be carried out exactly.
  • the corrugated cardboard web 2 passes through a transfer table 13 and reaches a simplex cross cutter 15. This is constructed in a simple arrangement. It separates the corrugated cardboard web 2 into the corrugated cardboard sheets defined by the predetermined format over their entire width.
  • a pull-out device 16 detects the cut sheets and conveys them to a conventional sheet tray 17. This allows the different batches of sheets to be placed in different sheet containers.
  • an arch lock 18 which discharges waste sheets from the corrugated cardboard area, in which the preceding and subsequent format overlap, into a waste container 19.
  • These missing sheets are cut out by means of the simplex cross cutter 15.
  • the control thereof is preferably carried out depending on the peripheral speed in such a way that the missing cuts in the area of the overlap of the two formats (previous and new) take place synchronously with the unchanged working speed of the entire corrugated cardboard system 1 .
  • the special arrangement of the various devices along the conveying direction of the corrugated cardboard web 2 to be processed ensures that the corrugated cardboard web 2 is constantly uncut under the pulling action of the pulling device 12. As a result, the entire corrugated cardboard line is continuously connected to the heating and pulling device 3 at a constant train and laterally. Incorrect cuts and thus waste are reduced to a minimum.
  • the narrower corrugated cardboard web 2 passing through the system 1 is spliced with a wider corrugated cardboard web 2 'in the splice area 25.
  • the tools of the longitudinal cutting and creasing device 10 set for the web 2 make lateral longitudinal cuts 26 for the longitudinal edges 27 and format longitudinal cuts 28. These overlap the web 2 'in the splice area 25.
  • the cross sections 29, which extend over the entire web width, are carried out by the simplex cross cutter 15. In the transition area between the preceding format 29 and the subsequent format 29 ', the cross sections are not designed in accordance with the format. So that the longitudinal strips 27 can be removed, cuts 30 are made in the splice area 25 by the cross-cutting device 6 transverse to the web 2 at the transition point from the web 2 to the web 2 '.
  • the inconsistent cuts 31 of the web parts over the length a are cut out by the simplex cross cutter 15 and discharged as waste.
  • the further format-appropriate cuts 26 'for the longitudinal edges 27' and the longitudinal format cuts 28 'for the web 2' are carried out by the slitting and creasing device 10 brought into the working position.
  • the format-appropriate cross sections 29 'for the web 2' are carried out with a new setting of the simplex cross-cutters 15.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Making Paper Articles (AREA)

Abstract

Bei dem Verfahren zur Herstellung von Wellpappebögen mit veränderbarem Format wird die Wellpappenbahn (2) aus einer Heiz- und Zugvorrichtung (3) einer üblichen Wellpappenanlage (1) fortlaufend abgefördert. Sie wird in wenigstens einer Längsschneide- und Rillvorrichtung (10) auf ein gefordertes Format bearbeitet. Hierfür wird die Bahn (2) durch eine Zugvorrichtung (12) gefördert. Ein Querschneider (15) trennt nach voreingestelltem Format die Wellpappenbogen aus der Wellpappenbahn (2) heraus. Die Wellpappenbahn (2) soll bis zum Querschneider (15) für die Wellpappenbogen in Förderrichtung ohne Querteilung gefördert werden. Bei Formatwechsel wird der Wellpappenbahnbereich mit sich überlappenden Formaten durch den Querschneider (15) bogenweise herausgeschnitten und über eine Schleuse (18) zu einem Abfallbehälter (19) ausgeschleust.

Figure imgaf001
In the process for producing corrugated cardboard sheets with a changeable format, the corrugated cardboard web (2) is continuously removed from a heating and pulling device (3) in a conventional corrugated cardboard system (1). It is processed to the required format in at least one slitter and scoring device (10). For this purpose, the web (2) is conveyed by a pulling device (12). A cross cutter (15) separates the corrugated cardboard sheets from the corrugated cardboard web (2) according to the preset format. The corrugated cardboard web (2) is to be conveyed up to the cross cutter (15) for the corrugated cardboard sheets in the conveying direction without transverse division. When the format changes, the corrugated cardboard web area with overlapping formats is cut out in sheets by the cross cutter (15) and discharged via a lock (18) to a waste container (19).
Figure imgaf001

Description

Verfahren und Vorrichtung zum Herstellen von Wellpappebögen mit veränderbarem Format mit den Merkmalen des Oberbegriffs des Patentanspruches 1 bzw. des Patentanspruches 7.Method and device for producing corrugated cardboard sheets with changeable format with the features of the preamble of claim 1 and of claim 7.

Bei einer bekannten Wellpappenanlage wird die Wellpappenbahn mit einer vorgegebenen Arbeitsgeschwindigkeit aus einer Heiz- und und Zugvorrichtung austretend bei Formatwechsel für die herzustellenden Wellpappenbogen durch einen Querschneider über die ganze Bahnbreite geteilt. Die Restbahn für eine bestimmte Bogenzahl einer Charge wird beschleunigt. Die aus der Heiz- und Zugvorrichtung neu zulaufende Wellpappenbahn wird verlangsamt. Dadurch entsteht zwischen ablaufender Restbahn und neu zulaufender Bahn eine Lücke. Während dieser Lücke in der Wellpappenbahn werden Längsschneide- und Rillvorrichtung und Querschneider auf das neue Format umgestellt. Nachteilig ist hierbei, daß die ablaufende Restbahn und die neu zulaufende Bahn in Förderrichtung nicht einem Zug ausgesetzt sind und daher nicht ausreichend geführt werden. Hierdurch entstehen Schnittdifferenzen am Querschneider und Schneid- und Rilldifferenzen an der Längsschneide und Rillvorrichtung. Es entstehen unnötig große Abfallmengen und ggf. Störungen im Betrieb. Besonders störend wirkt sich dies bei Wellpappenbahnen aus, die vorbedruckt und Passergenau geschnitten werden müssen. Zudem muß die Arbeitsgeschwindigkeit zur Lückenbildung verändert werden.In a known corrugated cardboard plant, the corrugated cardboard web is separated from a heating and pulling device at a predetermined working speed when the format for the corrugated cardboard sheets to be produced is divided by a cross cutter over the entire web width. The remaining web for a certain number of sheets in a batch is accelerated. The corrugated cardboard web coming in from the heating and pulling device is slowed down. This creates a gap between the remaining web and the new web. During this gap in the corrugated cardboard web, slitting and creasing devices and cross cutters are converted to the new format. The disadvantage here is that the remaining web and the new web are not exposed to a train in the conveying direction and are therefore not adequately guided. This creates cutting differences on the cross cutter and cutting and creasing differences on the longitudinal cutting edge and creasing device. There are unnecessarily large amounts of waste and possibly disruptions in operation. This has a particularly disruptive effect on corrugated cardboard webs which have to be pre-printed and cut to register. In addition, the working speed must be changed to form gaps.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung von Wellpappenbögen mit veränderbarem Format sowie eine Vorrichtung zur Durchführung dieses Verfahrens anzugeben, wodurch auch im Hochgeschwindigkeitsbereich bei Formatwechsel nur ein minimierter Abfall anfällt. Der ablaufende Wellpappenbahnbereich darf hierbei möglichst keine unkorrekten Bogen in der Charge enthalten. Zudem sollen keine größeren Beeinträchtigungen der Gesamtgeschwindigkeit der Wellpappenanlage auftreten. Auch sollen Geschwindigkeitsveränderungen weitgehend vermieden werden.The invention is based on the object of specifying a method for producing corrugated cardboard sheets with a changeable format and an apparatus for carrying out this method, as a result of which only a minimal waste occurs in the high-speed range when the format is changed. The corrugated cardboard web area running off may not contain any incorrect sheets in the batch. In addition, there should be no major impairments the overall speed of the corrugated cardboard line. Changes in speed should also be largely avoided.

Die Erfindung löst diese Aufgabe mit den kennzeichenden Merkmalen der Patentansprüche 1 und 6.The invention solves this problem with the characterizing features of claims 1 and 6.

Dadurch, daß die Wellpappenbahn bis zum Querschneider für die Wellpappenbogen in Förderrichtung ohne Querteilung gefördert wird, kann die Führung und die genaue Förderbewegung aufrechterhalten werden. Die querverlaufenden und längsverlaufenden Schnitte werden exakt und lagegerecht ausgeführt. Wenn bei Formatwechsel der Wellpappenbahnbereich mit sich überlappenden Formaten durch den Querschneider bogenweise herausgeschnitten wird, entsteht auch nur ein verhältnismäßig geringer Abfall. Zudem kann mit kontinuierlicher Höchstgeschwindigkeit gearbeitet werden. Geschwindigkeitsbeschleunigungen und Verzögerungen werden weitgehenst vermieden.The fact that the corrugated cardboard web is conveyed up to the cross cutter for the corrugated cardboard sheets in the conveying direction without transverse division, the guidance and the exact conveying movement can be maintained. The transverse and longitudinal cuts are made precisely and in the correct position. If the corrugated cardboard web area with overlapping formats is cut out by the cross cutter when the format changes, there is only a relatively small waste. In addition, you can work at a continuous top speed. Accelerations of speed and delays are largely avoided.

Weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further refinements of the invention result from the subclaims.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert. In der Zeichnung zeigen:

Fig. 1
eine schematische Seitenansicht eines Teils einer Wellpappenanlage;
Fig. 2
eine Draufsicht und
Fig. 3
eine Teil-Draufsicht auf die Wellpappenbahn.
The invention is explained below with reference to an embodiment shown in the drawing. The drawing shows:
Fig. 1
a schematic side view of part of a corrugated cardboard plant;
Fig. 2
a top view and
Fig. 3
a partial top view of the corrugated cardboard web.

Bei der Wellpappenanlage 1 wird nach Fig. 1 die Wellpappenbahn 2 in der angegebenen Pfeilrichtung I aus der Heiz- und Zugvorrichtung 3 gefördert.1, the corrugated cardboard web 2 is conveyed out of the heating and pulling device 3 in the direction of the arrow I indicated.

Die Wellpappenbahn 2 bildet z.B. eine doppelseitige oder eine Doppel-Doppel-Wellpappe.The corrugated cardboard web 2 forms e.g. double-sided or double-double corrugated cardboard.

Die Wellpappenbahn 2 gelangt anschließend zu einem Querschneider 4. Dieser dient nur zum Herausschneiden von Abfall aus der Wellpappenbahn 2 bei Produktionsbeginn oder während der Produktion.The corrugated cardboard web 2 then arrives at a cross cutter 4. This is only used to cut out waste from the corrugated cardboard web 2 at the start of production or during production.

Hierauf gelangt die Wellpappenbahn 2 zu einem Überführtisch 5.The corrugated cardboard web 2 then reaches a transfer table 5.

Die anschließende Querschneidevorrichtung 6 schneidet über eine vorbestimmte Länge die Wellpappenbahn 2 seitlich im Randbereich ein. Vorzugsweise wird diese Schnittlänge entsprechend der Differenz zwischen der maximalen und der minimalen auf der Anlage zu verarbeitenden Bahnbreite gewählt.The subsequent cross-cutting device 6 cuts the corrugated cardboard web 2 laterally in the edge region over a predetermined length. This cutting length is preferably selected in accordance with the difference between the maximum and the minimum web width to be processed on the system.

Die nicht vollständig quer geschnittene Wellpappenbahn 2 gelangt dann weiter zu wenigstens einem, im Ausführungsbeispiel zu zwei hintereinander angeordneten Längsschneide- und Rillvorrichtungen 10. Diese Längsschneide- und Rillvorrichtungen 10 arbeiten wechselweise. Die Schneid- bzw. Rillwerkzeuge der nicht arbeitenden Vorrichtung 10 sind auf das Format einer neuen Bogencharge eingestellt. Bei "Formatwechsel", d.h. nach Erreichen einer vorbestimmten Anzahl von Wellpappebogen mit einem bestimmten Format, werden gesteuert die Werkzeuge der bisher arbeitenden Längsschneide- und Rillvorrichtung 10 ausgerückt und die Werkzeuge der anderen bisher nicht arbeitenden Längsschneide- und Rillvorrichtung 10, eingerückt.The corrugated cardboard web 2, which is not completely cut transversely, then reaches at least one, in the exemplary embodiment two longitudinal cutting and creasing devices 10 arranged one behind the other. These longitudinal cutting and creasing devices 10 work alternately. The cutting or creasing tools of the non-working device 10 are set to the format of a new batch of sheets. With "format change", i.e. after reaching a predetermined number of corrugated cardboard sheets with a certain format, the tools of the slitting and creasing device 10 previously working are disengaged and the tools of the other slitting and creasing device 10, which have not been working so far, are engaged.

Die arbeitende Längsschneide- und Rillvorrichtung 10 beschneidet die durchlaufende Wellpappenbahn 2 auch seitlich. Es entstehen Randstreifen. Zwischen diesen sind die Längsschneide- bzw. Rillwerkzeuge nach vorgewähltem Format angeordnet.The working longitudinal cutting and creasing device 10 also cuts the continuous corrugated cardboard web 2 laterally. Arise Edge strips. Between these, the slitting or creasing tools are arranged according to the selected format.

Jeder Längsschneide- und Rillvorrichtung 10 ist eine Abfördervorrichtung 11 für die Randstreifen zugeordnet. Diese fördern die Randstreifen in nicht dargestellte Abfallbehälter ab. Vorzugsweise werden für die Abfördervorrichtung 11 Absaugvorrichtungen benutzt. Damit das Abfördern des jeweiligen Randstreifens sicher erfolgt, sind diese Abfördervorrichtungen 11 quer je nach Format und daher Breite des Längsstreifens einstellbar.Each longitudinal cutting and creasing device 10 is assigned a removal device 11 for the edge strips. These convey the edge strips into waste containers (not shown). Suction devices are preferably used for the removal device 11. So that the respective edge strip is conveyed away safely, these discharge devices 11 can be adjusted transversely depending on the format and therefore the width of the longitudinal strip.

Bei Formatwechsel wird die Querschneidevorrichtung 6 eingeschaltet. Der notwendige querverlaufende Teilschnitt von den Bahnlängsrändern nach einwärts wird über eine passende Länge vollzogen, wenn die der vorbestimmten Chargenzahl entsprechende Bahnlänge durch die Querschneidevorrichtung 6 durchgelaufen ist. Durch die Abfördervorrichtung 11 können die so abgeteilten Randstreifen abgefördert werden.When changing the format, the cross cutting device 6 is switched on. The necessary transverse partial section from the longitudinal edges of the web inwards is carried out over a suitable length when the web length corresponding to the predetermined batch number has passed through the cross-cutting device 6. The edge strips divided in this way can be removed by the removal device 11.

Anschließend an die in Förderrichtung letzte Längsschneide- und Rillvorrichtung 10 ist eine Zugvorrichtung 12 vorgesehen, die einen ständigen Zug auf die durchlaufende Wellpappenbahn 2 ausübt. Die Bahnstrecke von der Heiz- und Trockenvorrichtung 3 bis zu dieser Zugvorrichtung 12 bleibt somit, weil nicht vollständig quer geschnitten, geführt. Die notwendigen Schnitte bzw. Rillungen können damit exakt ausgeführt werden.Following the last slitter and scoring device 10 in the conveying direction, a pulling device 12 is provided which exerts a constant pull on the continuous corrugated cardboard web 2. The railway line from the heating and drying device 3 to this pulling device 12 thus remains guided because it is not completely cut transversely. The necessary cuts or scoring can thus be carried out exactly.

An die Zugvorrichtung 12 anschließend durchläuft die Wellpappenbahn 2 einen Überführungstisch 13 und gelangt in einen Simplex-Querschneider 15. Dieser ist in Einfach-Anordnung aufgebaut. Er trennt die Wellpappenbahn 2 in die durch das vorbestimmte Format vorgegebenen Wellpappenbogen über ihre ganze Breite.Following the pulling device 12, the corrugated cardboard web 2 passes through a transfer table 13 and reaches a simplex cross cutter 15. This is constructed in a simple arrangement. It separates the corrugated cardboard web 2 into the corrugated cardboard sheets defined by the predetermined format over their entire width.

Eine Auszugsvorrichtung 16 erfaßt die geschnittenen Bogen und fördert sie zu einer üblichen Bogenablage 17. Hierdurch können die unterschiedlichen Chargen der Bogen in unterschiedliche Bogenbehälter abgelegt werden.A pull-out device 16 detects the cut sheets and conveys them to a conventional sheet tray 17. This allows the different batches of sheets to be placed in different sheet containers.

In die Auszugsvorrichtung 16 integriert ist eine Bogenschleuse 18, die Abfallbögen aus dem Wellpappenbereich, in dem sich vorausgehendes und nachfolgendes Format überlappen, in einen Abfallbehälter 19 ableiten. Hierdurch wird die vorausgehende Charge, wie auch die nachfolgende Charge frei von mit Fehlschnitten bzw. Rillungen versehenen Bogen.Integrated into the pull-out device 16 is an arch lock 18, which discharges waste sheets from the corrugated cardboard area, in which the preceding and subsequent format overlap, into a waste container 19. As a result, the preceding batch, as well as the subsequent batch, is free of sheets with incorrect cuts or scoring.

Das Herausschneiden dieser Fehlbogen erfolgt über den Simplex-Querschneider 15. Die Steuerung desselben erfolgt dabei vorzugsweise abhängig von der Umfangsgeschwindigkeit derart, daß die Fehlschnitte im Bereich der Überlappung der beiden Formate (bisheriges und neues) synchron mit der nicht veränderten Arbeitsgeschwindigkeit der gesamten Wellpappenanlage 1 erfolgt.These missing sheets are cut out by means of the simplex cross cutter 15. The control thereof is preferably carried out depending on the peripheral speed in such a way that the missing cuts in the area of the overlap of the two formats (previous and new) take place synchronously with the unchanged working speed of the entire corrugated cardboard system 1 .

Durch die besondere Anordnung der verschiedenen Vorrichtungen längs der Förderrichtung der zu bearbeitenden Wellpappenbahn 2 wird erreicht, daß die Wellpappenbahn 2 ungeschnitten ständig unter der Zugwirkung der Zugvorrichtung 12 steht. Hierdurch bleibt die gesamte Wellpappenstrecke anschließend an die Heiz- und Zugvorrichtung 3 ständig auf konstanten Zug und seitlich geführt. Fehlschnitte und damit Abfall werden auf ein Minimum reduziert.The special arrangement of the various devices along the conveying direction of the corrugated cardboard web 2 to be processed ensures that the corrugated cardboard web 2 is constantly uncut under the pulling action of the pulling device 12. As a result, the entire corrugated cardboard line is continuously connected to the heating and pulling device 3 at a constant train and laterally. Incorrect cuts and thus waste are reduced to a minimum.

Nach Fig. 3 ist die durch die Anlage 1 durchlaufende schmälere Wellpappenbahn 2 im Spleißbereich 25 mit einer breiteren Wellpappenbahn 2' gespleist.According to FIG. 3, the narrower corrugated cardboard web 2 passing through the system 1 is spliced with a wider corrugated cardboard web 2 'in the splice area 25.

Die für die Bahn 2 eingestellten Werkzeuge der Längsschneide- und Rillvorrichtung 10 führen seitliche Längsschnitte 26 für die Längsränder 27 und Format-Längsschnitte 28 durch. Diese greifen im Spleißbereich 25 auf die Bahn 2' über.The tools of the longitudinal cutting and creasing device 10 set for the web 2 make lateral longitudinal cuts 26 for the longitudinal edges 27 and format longitudinal cuts 28. These overlap the web 2 'in the splice area 25.

Die Querschnitte 29, die sich über die ganze Bahnbreite erstrecken, werden vom Simplex-Querschneider 15 ausgeführt. Im Übergangsbereich zwischen vorgehendem Format 29 und nachfolgendem Format 29' sind die Querschnitte nicht formatgerecht ausgeführt. Damit die Längsstreifen 27 abgefördert werden können, werden im Spleißbereich 25 von der Querschneidevorrichtung 6 quer zur Bahn 2 Schnitte 30 an der Übergangsstelle von der Bahn 2 zur Bahn 2' ausgeführt.The cross sections 29, which extend over the entire web width, are carried out by the simplex cross cutter 15. In the transition area between the preceding format 29 and the subsequent format 29 ', the cross sections are not designed in accordance with the format. So that the longitudinal strips 27 can be removed, cuts 30 are made in the splice area 25 by the cross-cutting device 6 transverse to the web 2 at the transition point from the web 2 to the web 2 '.

Die nicht formatgerechten Schnitte 31 der Bahnteile über die Länge a werden durch den Simplex-Querschneider 15 herausgeschnitten und als Abfall abgeführt.The inconsistent cuts 31 of the web parts over the length a are cut out by the simplex cross cutter 15 and discharged as waste.

Die weiteren formatgerechten Schnitte 26' für die Längsränder 27' sowie die Längs-Formatschnitte 28' für die Bahn 2' werden von der in Arbeitsstellung gebrachten Längschneide- und Rillvorrichtung 10 ausgeführt.The further format-appropriate cuts 26 'for the longitudinal edges 27' and the longitudinal format cuts 28 'for the web 2' are carried out by the slitting and creasing device 10 brought into the working position.

Die formatgerechten Querschnitte 29' für die Bahn 2' vollzieht mit neuer Einstellung der Simplex-Querscheider 15.The format-appropriate cross sections 29 'for the web 2' are carried out with a new setting of the simplex cross-cutters 15.

Es versteht sich, daß auch gleichbreite, gespleiste Bahnen 2, 2' aber mit neuen Bogen-Formaten auf gleiche Weise in der Anlage 1 verarbeitet werden können.It goes without saying that spliced webs 2, 2 'of the same width can also be processed in the same way in the system 1 with new arch formats.

Claims (11)

Verfahren zur Herstellung von Wellpappebögen mit veränderbaren Format,

bei dem die Wellpappenbahn (2) aus einer Heiz- und Zugvorrichtung (3) fortlaufend und mit gleichbleibender Arbeitsgeschwindigkeit abgefördert,

in wenigstens einer Längsschneide- und Rillvorrichtung (10) auf ein vorbestimmtes Format bearbeitet,

durch eine Zugvorrichtung in Förderrichtung gefördert und

durch einen Querschneider (15) dem Format entsprechend in Wellpappebogen geschnitten wird,

dadurch gekennzeichnet,

daß die Wellpappenbahn (2) bis zum Querschneider (15) für die Wellpappebogen in Förderrichtung (I) ohne Querteilung gefördert wird und

daß bei Formatwechsel der Wellpappenbahnbereich mit sich überlappenden Formaten durch den Querschneider (15) bogenweise herausgeschnitten und über eine Bogenschleuse (18) zu einem Abfallbehälter (19) ausgeschleust wird.Process for the production of corrugated cardboard sheets with changeable format,

in which the corrugated cardboard web (2) is continuously removed from a heating and pulling device (3) and at a constant working speed,

processed in at least one longitudinal cutting and creasing device (10) to a predetermined format,

conveyed in the conveying direction by a pulling device and

is cut into corrugated cardboard sheets according to the format by a cross cutter (15),

characterized,

that the corrugated cardboard web (2) is conveyed up to the cross cutter (15) for the corrugated cardboard sheets in the conveying direction (I) without transverse division and

that when the format changes, the corrugated cardboard web area with overlapping formats is cut out in sheets by the cross cutter (15) and discharged via a sheet lock (18) to a waste container (19). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß mehrere, wechselweise arbeitende Längsschneide- und Rillvorrichtungen (10) in Bahnförderrichtung hintereinander verwendet werden.Method according to claim 1,
characterized,
that several, alternately working slitting and creasing devices (10) are used one behind the other in the web conveying direction. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die Randstreifen der Wellpappenbahn (2) durch Randstreifenquerschneidevorrichtungen (6) quergeschnitten und anschließend an die Randstreifenlängsschnitte durch Abfördervorrichtungen (11) als Abfall abgefördert werden.Method according to claim 1,
characterized,
that the edge strips of the corrugated cardboard web (2) are cross-cut by edge strip cross-cutting devices (6) and are then conveyed to the edge strip longitudinal cuts by removal devices (11) as waste. Verfahren nach Anspruch 3,
dadurch gekennzeichnet,
daß die Randstreifenquerschneidevorrichtungen (6) mit vorbestimmter Länge für den querverlaufenden Schnitt arbeiten, die von der Differenz zwischen den maximal zu verarbeitenden und der minimal zu verarbeitenden Bahnbreite abhängt.Method according to claim 3,
characterized,
that the verge cross-cutting devices (6) work with a predetermined length for the transverse cut, which depends on the difference between the maximum to be processed and the minimum to be processed web width. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß als die Wellpappenbogen abtrennender Querschneider ein Simplex-Querschneider (15) verwendet wird, mit dem auch bei unveränderter Bahngeschwindigkeit der Bahnbereich mit sich überlappenden Formaten herausgeschnitten wird und mittels einer Bogenschleuse (18) in einem Abfallbehälter (19) abgefördert wird.Method according to one or more of the preceding claims,
characterized,
that a simplex cross cutter (15) is used as the cross cutter separating the corrugated cardboard sheets, with which the web area is cut out with overlapping formats even at unchanged web speed and is conveyed away in a waste container (19) by means of an arch lock (18). Vorrichtung zur Durchführung des Verfahrens nach einem oder mehreren der vorstehenden Ansprüche 1 bis 5,

mit einer Heiz- und Zugvorrichtung (3) für die Wellpappenbahn (2),

wenigstens einer Längsschneide- und oder Rillvorrichtung (10),

einer Bahnzugvorrichtung (12),

einer Querschneidevorrichtung (6) für die Bahnrandstreifen und

einer Abfördervorrichtung (11) für die Bahnlängsränder mit Abfallbehälter,

dadurch gekennzeichnet,

daß die die Wellpappenbahn (2) vollständig quer trennende Querschneidevorrichtung (15) der Längsschneide- und Rillvorrichtung (10) in Bahnfördervorrichtung nachgeordnet ist und

daß die Abfördervorrichtung für Wellpappenbogen aus einem Wellpappenbahnbereich mit überlappenden Formaten in Form einer Schleuse (18) dieser Querschneidevorrichtung (15) zugeordnet ist.Device for carrying out the method according to one or more of the preceding claims 1 to 5,

with a heating and pulling device (3) for the corrugated cardboard web (2),

at least one longitudinal cutting and / or creasing device (10),

a web pulling device (12),

a cross cutting device (6) for the web edge strips and

a removal device (11) for the longitudinal edges of the web with a waste container,

characterized,

that the corrugated cardboard web (2) completely transversely separating cross cutting device (15) of the slitting and creasing device (10) is arranged in the web conveyor and

that the removal device for corrugated cardboard sheets from a corrugated cardboard web area with overlapping formats in the form of a lock (18) is assigned to this cross-cutting device (15). Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet,
daß in Bahnförderrichtung mehrere, wechselweise arbeitende, Längsschneide- und nRillvorrichtungen (15) hintereinander mit auf wechselnde Formatgrößen voreinstellbaren Werkzeugen verwendet sind.Apparatus according to claim 6,
characterized,
that several, alternating, slitting and grooving devices (15) are used in succession in the web conveying direction with tools that can be preset to changing format sizes. Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet,
daß der Längsschneide- und Rillvorrichtung (15) Querschneidevorrichtungen (6) zum Einschneiden von querverlaufenden Schnitten in den Bahnrandbereichen in Bahnförderrichtung vorgeordnet sind.Apparatus according to claim 6,
characterized,
that the longitudinal cutting and creasing device (15) are preceded by transverse cutting devices (6) for cutting transverse cuts in the web edge areas in the web conveying direction. Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet,
daß die die Wellpappenbahn (2) in Bogen abteilende Querschneidevorrichtung (15) ein Simplex-Querschneider ist.Apparatus according to claim 6,
characterized,
that the corrugated cardboard web (2) dividing the sheet cross cutting device (15) is a simplex cross cutter. Vorrichtung nach Anspruch 9,
dadurch gekennzeichnet,
daß der Querschneidevorrichtung (15) zum Abteilen der Bogen eine Auszugsvorrichtung (16), eine Bogenschleuse (18) und ein Abfallbehälter (19) zugeordnet ist.Device according to claim 9,
characterized,
that the cross-cutting device (15) for dividing the sheets is assigned a pull-out device (16), an arc lock (18) and a waste container (19). Vorrichtung nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß eine übliche Ablagevorrichtung (20) für unterschiedliche Bogenchargen vorhanden ist.Device according to one or more of the preceding claims,
characterized,
that a conventional storage device (20) is available for different sheet batches.
EP92117024A 1991-10-11 1992-10-06 Method and apparatus for manufacturing corrugated paperboard with variable format Expired - Lifetime EP0541953B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4133760A DE4133760A1 (en) 1991-10-11 1991-10-11 METHOD AND DEVICE FOR THE PRODUCTION OF CORRUGATED CARDBOARDS WITH CHANGEABLE FORMAT
DE4133760 1991-10-11

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Publication Number Publication Date
EP0541953A1 true EP0541953A1 (en) 1993-05-19
EP0541953B1 EP0541953B1 (en) 1995-03-15

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US (1) US5393294A (en)
EP (1) EP0541953B1 (en)
DE (2) DE4133760A1 (en)

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DE4133760A1 (en) 1993-04-15
EP0541953B1 (en) 1995-03-15
DE59201661D1 (en) 1995-04-20
US5393294A (en) 1995-02-28

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