EP0102572A1 - A single facer corrugating machine - Google Patents

A single facer corrugating machine Download PDF

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Publication number
EP0102572A1
EP0102572A1 EP83108188A EP83108188A EP0102572A1 EP 0102572 A1 EP0102572 A1 EP 0102572A1 EP 83108188 A EP83108188 A EP 83108188A EP 83108188 A EP83108188 A EP 83108188A EP 0102572 A1 EP0102572 A1 EP 0102572A1
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EP
European Patent Office
Prior art keywords
corrugated
roller
rollers
web
another
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Withdrawn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
EP83108188A
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German (de)
French (fr)
Inventor
Rolf Kier
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.)
Werner H K Peters Maschinenfabrik GmbH
Original Assignee
Werner H K Peters Maschinenfabrik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Werner H K Peters Maschinenfabrik GmbH filed Critical Werner H K Peters Maschinenfabrik GmbH
Publication of EP0102572A1 publication Critical patent/EP0102572A1/en
Withdrawn legal-status Critical Current

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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

Definitions

  • the innovation relates to a single-sided corrugated cardboard machine with two intermeshing corrugated rollers, the engagement area of which is fed to the corrugated web to be corrugated, and to a press roller assigned to the corrugated rollers, which presses a cover sheet against the corrugated web lying on the corrugated roller and provided with adhesive on the shaft crests.
  • Such single-sided corrugated cardboard machines are generally known.
  • the corrugated rollers are provided with identical teeth or grooves, equally spaced in the circumferential direction, the depth of the grooves depending on how the corrugation of the corrugated cardboard is to be shaped.
  • the press roll which the cover sheet against the corrugated sheet presses, has a smooth cylindrical circumference. Since the press roller is pressed against the assigned corrugating roller, its distance relative to the axis of the corrugating roller changes periodically as it rolls on the circumference of the corrugating roller. In a position between two adjacent teeth, the press roller axis is closer to the axis of the corrugated roller than in the case of an abutment against a tooth or corrugated tip.
  • the innovation is based on the task of creating a one-sided corrugated cardboard machine which avoids the disadvantages mentioned and, above all, largely suppresses machine noise and requires better vibration behavior.
  • this object is achieved in that the corrugated rollers mesh with one another via helical teeth and the ends of the straight flank lines are offset from one another in the circumferential direction by at least one tooth pitch.
  • the axes of the press roll and the associated corrugating roll are always at the same distance from one another. This is due to the fact that, regardless of the rotational position of the corrugated roller, the press roller always bears against part of a tooth. The notorious stumbling effect is avoided. The result of this is a smoother running of the individual rollers and a greatly improved vibration behavior. In this way, the noise of the corrugated cardboard machine is greatly reduced. The load on the paper is also significantly reduced. Crushing and line punching can be avoided.
  • the corrugated material web is not expected to migrate sideways. Therefore, it can be relatively inexpensive
  • the hammering of the press roller against the corrugating roller is prevented and thus the sensitive disadvantages caused thereby.
  • the production of a corrugated roller with helical teeth is only slightly more complex than that with the conventional straight teeth.
  • Another advantage of the innovation is that corrugated cardboard sheets with an inclined corrugation are arranged in the case of double layers so that the oblique waves cross. In this way you get an increased stiffness in the running direction.
  • arrow teeth In some cases, especially with relatively long corrugated rollers, it can also be advantageous to use so-called arrow teeth.
  • the arrow teeth must also be designed so that the press roll is always in contact with the tip of the teeth at at least one point.
  • the one-sided corrugated cardboard machine shown in FIG. 1 has a first or upper corrugated roller 10 and a second or lower corrugated roller 11 meshing therewith.
  • a corrugated material web 13 is fed to the engagement area of the two corrugated rollers 10, 11.
  • the directions of rotation of the corrugated rollers 10, 11 are indicated by arrows.
  • the corrugated web 14 is located in the corrugations of the corrugating roller 11. It is held here by holding devices, which are not specified in any more detail. For example, these can have guide fingers or work with negative pressure.
  • a glue application roller not shown, which is assigned to the lower corrugating roller 11, applies adhesive to the shaft crests of the corrugated web 14 in a known manner.
  • a press roller 15 is arranged, via a cover sheet 16 is pressed against the corrugated sheet 14 on the corrugated roller 11.
  • Corrugated sheet 14 and cover sheet 16 leave as one-sided corrugated cardboard 17 in the direction of arrow 18 the area of engagement of corrugated roller 11 and press roller 15.

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

Abstract

The machine comprises two mutually meshing corrugated rollers whose engagement area is fed with the web to be corrugated, and a press roller associated with one of the corrugated rollers which presses a covering web against the corrugated web resting on the corrugated roller and whose corrugation humps are provided with adhesive, the corrugated rollers (10, 11) meshing with one another by means of an oblique toothing and the ends of the straight corrugating lines being offset relative to one another in the circumferential direction by at least one tooth pitch. <IMAGE>

Description

Die Neuerung bezieht sich auf eine einseitige Wellpappenmaschine mit zwei miteinander kämmenden Riffelwalzen, deren Eingriffsbereich die zu wellende Wellstoffbahn zugeführt wird und einer einer der Riffelwalzen zugeordneten Preßwalze, die eine Deckbahn gegen die auf der Riffelwalze anliegende und auf den Wellenkuppen mit Klebstoff versehene Wellbahn andrückt.The innovation relates to a single-sided corrugated cardboard machine with two intermeshing corrugated rollers, the engagement area of which is fed to the corrugated web to be corrugated, and to a press roller assigned to the corrugated rollers, which presses a cover sheet against the corrugated web lying on the corrugated roller and provided with adhesive on the shaft crests.

Derartige einseitige Wellpappenmaschinen sind allgemein bekannt. Die Riffelwalzen sind mit identischen, in Umfangsrichtung gleichmäßig beabstandeten Zähnen bzw. Auskehlungen versehen, wobei die Tiefe der Auskehlungen davon abhängt, wie die Wellung der Wellpappe geformt sein soll. Die Preßwalze hingegen, welche die Deckbahn gegen die Wellbahn andrückt, besitzt einen glattzylindrischen Umfang. Da die Preßwalze nachgebend gegen die zugeordnete Riffelwalze angedrückt wird, verändert sich ihr Abstand relativ zur Achse der Riffelwalze periodisch mit ihrem Abrollen am Umfang der Riffelwalze. In einer Lage zwischen zwei benachbarten Zähnen liegt die Preßwalzenachse näher an der Achse der Riffelwalze als bei einer Anlage gegen eine Zahn- oder Riffelspitze. Auf diese Weise entsteht ein sogenannter Stolpereffekt, der.etliche Nachteile zur Folge hat. Noch gravierender ist der Schwingungseffekt im Eingriffsbereich der Riffelwalze. Auch hier kommt es naturgemäß zu periodischen Abstandsänderungen der Walzenachse mit den oben beschriebenen Folgen.Such single-sided corrugated cardboard machines are generally known. The corrugated rollers are provided with identical teeth or grooves, equally spaced in the circumferential direction, the depth of the grooves depending on how the corrugation of the corrugated cardboard is to be shaped. The press roll, however, which the cover sheet against the corrugated sheet presses, has a smooth cylindrical circumference. Since the press roller is pressed against the assigned corrugating roller, its distance relative to the axis of the corrugating roller changes periodically as it rolls on the circumference of the corrugating roller. In a position between two adjacent teeth, the press roller axis is closer to the axis of the corrugated roller than in the case of an abutment against a tooth or corrugated tip. This creates a so-called stumbling effect, which has a number of disadvantages. The vibration effect in the engagement area of the corrugated roller is even more serious. Here, too, there are naturally periodic changes in the distance of the roller axis with the consequences described above.

Durch das"Hämmern" der Preßwalze gegen die Riffelwalze wird vor allem bei höheren Produktionsgeschwindigkeiten ein beachtlicher Lärm erzeugt.By "hammering" the press roll against the corrugated roll, considerable noise is generated, especially at higher production speeds.

Ein weiterer Nachteil liegt darin, daß das Papier erheblich belastet wird. Es kann zum Anquetschen oder Ausschneiden des Papiers kommen. Schließlich können die in der einseitigen Wellpappenmaschine verursachten Schwingungen auch dazu führen, daß unzulässige Hoch-Tieffehler entstehen.Hoch-Tieffehler sind bekanntlich Wellungen unterschiedlicher Amplitude, welche die Qualität der Wellpappe beeinträchtigen.Another disadvantage is that the paper is considerably stressed. The paper may be crushed or cut out. Finally, the vibrations caused in the single-sided corrugated cardboard machine can also lead to inadmissible high-low errors. As is well known, high-low errors are corrugations of different amplitudes, which impair the quality of the corrugated cardboard.

Aus den obigen Gründen kann die Produktionsgeschwindigkeit einer einseitigen Wellpappenmaschine nicht die Höhe haben, welche erwünscht bzw. mechanisch zulässig wäre. Vielmehr wird die maximale Produktionsgeschwindigkeit durch die Lärmerzeugung und das Schwingungsverhalten mit den nachteiligen Folgen begrenzt.For the above reasons, the production speed of a single-sided corrugated cardboard machine cannot have the height that would be desirable or mechanically permissible. Rather, the maximum production speed is limited by the generation of noise and the vibration behavior with the disadvantageous consequences.

Der Neuerung liegt die Aufgabe zugrunde, eine einseitige Wellpappenmaschine zu schaffen, welche die erwähnten Nachteile vermeidet und vor allem den Maschinenlärm weitgehend unterdrückt und ein besseres Schwingungsverhalten bedingt.The innovation is based on the task of creating a one-sided corrugated cardboard machine which avoids the disadvantages mentioned and, above all, largely suppresses machine noise and requires better vibration behavior.

Diese Aufgabe wird neuerungsgemäß dadurch gelöst, daß die Riffelwalzen über eine Schrägverzahnung miteinander kämmen und die Enden der geraden Flankenlinien um mindestens eine Zahnteilung in Umfangsrichtung gegeneinander versetzt sind.According to the innovation, this object is achieved in that the corrugated rollers mesh with one another via helical teeth and the ends of the straight flank lines are offset from one another in the circumferential direction by at least one tooth pitch.

Bei der neuerungsgemäßen Wellpappenmaschine ist sichergestellt, daß die Achsen von Preßwalze und zugeordneter Riffelwalze stets im gleichen Abstand voneinander liegen. Dies beruht darauf, daß unabhängig von der Drehstellung der Riffelwalze die Preßwalze stets gegen einen Teil eines Zahns anliegt. Der berüchtigte Stolpereffekt ist damit vermieden. Die Folge davon sind ein ruhigerer Lauf der einzelnen Walzen und ein stark verbessertes Schwingungsverhalten. Der Lärm der Wellpappenmaschine wird auf diese Weise stark reduziert. Auch die Belastung des Papiers wird erheblich herabgesetzt. Anquetschungen und Linienausstanzungen können vermieden werden.In the corrugated cardboard machine according to the invention, it is ensured that the axes of the press roll and the associated corrugating roll are always at the same distance from one another. This is due to the fact that, regardless of the rotational position of the corrugated roller, the press roller always bears against part of a tooth. The notorious stumbling effect is avoided. The result of this is a smoother running of the individual rollers and a greatly improved vibration behavior. In this way, the noise of the corrugated cardboard machine is greatly reduced. The load on the paper is also significantly reduced. Crushing and line punching can be avoided.

Wegen der relativ kleinen Schrägwinkel der Schrägverzahnung ist ein seitliches Auswandern der Wellstoffbahn nicht zu erwarten. Daher kann mit relativ unaufwendigen Mitteln das Hämmern der Preßwalze gegen die Riffelwalze unterbunden werden und damit die dadurch hervorgerufenen empfindlichen Nachteile. Die Herstellung einer Riffelwalze mit schräger Verzahnung ist nur unwesentlich aufwendiger als die mit der konventionellen geraden Verzahnung.Because of the relatively small helix angle of the helical teeth, the corrugated material web is not expected to migrate sideways. Therefore, it can be relatively inexpensive The hammering of the press roller against the corrugating roller is prevented and thus the sensitive disadvantages caused thereby. The production of a corrugated roller with helical teeth is only slightly more complex than that with the conventional straight teeth.

Ein weiterer Vorteil der Neuerung besteht darin, daß Wellpappenbahnen mit schräg verlaufender Wellung im Fall von Doppellagen so angeordnet werden, daß sich die schrägen Wellen kreuzen. Auf diese Weise erhält man eine erhöhte Knicksteifigkeit in Laufrichtung.Another advantage of the innovation is that corrugated cardboard sheets with an inclined corrugation are arranged in the case of double layers so that the oblique waves cross. In this way you get an increased stiffness in the running direction.

In einigen Fällen, vor allem bei relativ langen Riffelwalzen, kann es auch von Vorteil sein, eine sogenannte Pfeilverzahnung einzusetzen. Auch die Pfeilverzahnung muß so ausgelegt sein, daß die Preßwalze immer an mindestens einer Stelle mit der Spitze der Zähne in Berührung ist.In some cases, especially with relatively long corrugated rollers, it can also be advantageous to use so-called arrow teeth. The arrow teeth must also be designed so that the press roll is always in contact with the tip of the teeth at at least one point.

Ein Ausführungsbeispiel der Neuerung wird nachfolgend anhand von Zeichnungen näher beschrieben.

  • Fig. 1 zeigt im Schnitt und schematisch eine einseitige Wellpappenmaschine nach der Neuerung.
  • Fig. 2 zeigt die untere Riffelwalze der Wellpappenmaschine nach Fig. 1 in perspektivischer Ansicht.
  • Fig. 3 zeigt verkleinert die Seitenansicht der Riffelwalze nach Fig. 2.
An embodiment of the innovation is described below with reference to drawings.
  • Fig. 1 shows in section and schematically a one-sided corrugated cardboard machine according to the innovation.
  • FIG. 2 shows the lower corrugated roller of the corrugated cardboard machine according to FIG. 1 in a perspective view.
  • 3 shows a reduced side view of the corrugating roller according to FIG. 2.

Bevor auf die in den Zeichnungen dargestellten Einzelheiten näher eingegangen wird, sei vorangestellt, daß jedes der gezeigten und beschriebenen Merkmale für sich oder in Verbindung mit Merkmalen der Ansprüche von neuerungswesentlicher Bedeutung ist.Before going into more detail on the details shown in the drawings, it should be assumed that each of the features shown and described is of importance for innovation alone or in connection with features of the claims.

Die in Fig. 1 dargestellte einseitige Wellpappenmaschine besitzt eine erste oder obere Riffelwalze 10 und eine damit kämmende zweite oder untere Riffelwalze 11. Dem Eingriffsbereich der beiden Riffelwalzen 10, 11 wird eine Wellstoffbahn 13 zugeführt. Die Drehrichtungen der Riffelwalzen 10, 11 sind durch Pfeile angedeutet. Nach dem Eingriffsbereich der Riffelwalze 10, 11 befindet sich die gewellte Bahn 14 in den Wellungen der Riffelwalze 11. Sie wird hierin durch nicht näher bezeichnete Haltevorrichtungen gehalten. Diese können zum Beispiel Führungsfinger haben oder mit Unterdruck arbeiten.The one-sided corrugated cardboard machine shown in FIG. 1 has a first or upper corrugated roller 10 and a second or lower corrugated roller 11 meshing therewith. A corrugated material web 13 is fed to the engagement area of the two corrugated rollers 10, 11. The directions of rotation of the corrugated rollers 10, 11 are indicated by arrows. After the engagement area of the corrugating roller 10, 11, the corrugated web 14 is located in the corrugations of the corrugating roller 11. It is held here by holding devices, which are not specified in any more detail. For example, these can have guide fingers or work with negative pressure.

Eine nicht gezeigte Leimauftragswalze, die der unteren Riffelwalze 11 zugeordnet ist, trägt in bekannter Weise auf die Wellenkuppen der Wellbahn 14 Klebstoff auf.A glue application roller, not shown, which is assigned to the lower corrugating roller 11, applies adhesive to the shaft crests of the corrugated web 14 in a known manner.

Auf der der oberen Riffelwalze 10 gegenüberliegenden Seite der unteren Riffelwalze 11 ist eine Preßwalze 15 angeordnet, über die eine Deckbahn 16 gegen die Wellbahn 14 an der Riffelwalze 11 gedrückt wird. Wellbahn 14 und Deckbahn 16 verlassen als einseitige Wellpappe 17 in Richtung des Pfeiles 18 den Eingriffsbereich von Riffelwalze 11 und Preßwalze 15.On the side of the lower corrugating roller 11 opposite the upper corrugating roller 10, a press roller 15 is arranged, via a cover sheet 16 is pressed against the corrugated sheet 14 on the corrugated roller 11. Corrugated sheet 14 and cover sheet 16 leave as one-sided corrugated cardboard 17 in the direction of arrow 18 the area of engagement of corrugated roller 11 and press roller 15.

Aus den Figuren 2 und 3 ist zu erkennen, daß die Zähne 19 schräg verlaufen. Entsprechendes gilt selbstverständlich auch für die obere Riffelwalze 10, da beide Riffelwalzen miteinander kämmen. Der Schrägwinkel der Zähne 19 ist so gewählt, daß die Enden um etwas mehr als eine Zahnteilung in Umfangsrichtung gegeneinander versetzt liegen. Dadurch liegt die glattzylindrische Außenseite der Preßwalze 15 zu jedem Zeitpunkt gegen einen Teil der Zähne 19 an. Der Stolpereffekt oder das sogenannte Hämmern wird auf diese Weise vermieden. Es versteht sich, daß der Lauf zwischen Riffelwalze 11 und Preßwalze 15 um so ruhiger ist, je schräger die Zähne 19 verlaufen. Eine zu starke Schrägung beeinträchtigt indessen die Papierqualität.It can be seen from FIGS. 2 and 3 that the teeth 19 run obliquely. The same naturally also applies to the upper corrugating roller 10, since both corrugating rollers mesh with one another. The helix angle of the teeth 19 is selected such that the ends are offset from one another in the circumferential direction by a little more than one tooth pitch. As a result, the smooth cylindrical outside of the press roll 15 bears against part of the teeth 19 at all times. The stumbling effect or the so-called hammering is avoided in this way. It is understood that the run between corrugated roller 11 and press roller 15 is the quieter the more inclined the teeth 19 are. However, an excessive bevel affects the paper quality.

Claims (1)

Einseitige Wellpappenmaschine mit zwei miteinander kämmenden Riffelwalzen, deren Eingriffsbereich die zu wellende Wellstoffbahn zugeführt wird, und einer einer der Riffelwalzen zugeordneten Preßwalze, die eine Deckbahn gegen die auf der Riffelwalze anliegende und auf den Wellenkuppen mit Klebstoff versehene Wellbahn andrückt, dadurch gekennzeichnet, daß die Riffelwalzen (10, 11) über eine Schrägverzahnung miteinander kämmen und die Enden der geraden Riffellinien um mindestens eine Zahnteilung in Umfangsrichtung gegeneinander versetzt sind.Single-sided corrugated cardboard machine with two intermeshing corrugated rollers, the engagement area of which is fed to the corrugated material web to be corrugated, and one press roller assigned to one of the corrugated rollers, which presses a cover sheet against the corrugated web lying on the corrugated roller and provided with adhesive on the shaft crests, characterized in that the corrugated rollers (10, 11) comb with one another via helical teeth and the ends of the straight corrugated lines are offset from one another in the circumferential direction by at least one tooth pitch.
EP83108188A 1982-09-04 1983-08-19 A single facer corrugating machine Withdrawn EP0102572A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19828225044 DE8225044U1 (en) 1982-09-04 1982-09-04 SINGLE-SIDED CARDBOARD MACHINE
DE8225044U 1982-09-04

Publications (1)

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EP0102572A1 true EP0102572A1 (en) 1984-03-14

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EP83108188A Withdrawn EP0102572A1 (en) 1982-09-04 1983-08-19 A single facer corrugating machine

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EP (1) EP0102572A1 (en)
DE (1) DE8225044U1 (en)
DK (1) DK401083A (en)
ES (1) ES282963Y (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015224133A1 (en) * 2015-12-03 2017-06-08 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh corrugator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE677758C (en) * 1934-08-18 1939-07-13 Oswald Kaeppler Method and device for the production of cardboard, cardboard or similar material with corrugations that run obliquely to the trimmed edges
DE2424776A1 (en) * 1973-08-23 1975-03-06 Harris Intertype Corp METHOD AND DEVICE FOR MANUFACTURING SINGLE-SIDED CORRUGATED BOARD
DE2442064A1 (en) * 1973-09-04 1975-03-20 Harris Corp MACHINE FOR THE PRODUCTION OF SINGLE-SIDED CORRUGATED CARDBOARD

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE677758C (en) * 1934-08-18 1939-07-13 Oswald Kaeppler Method and device for the production of cardboard, cardboard or similar material with corrugations that run obliquely to the trimmed edges
DE2424776A1 (en) * 1973-08-23 1975-03-06 Harris Intertype Corp METHOD AND DEVICE FOR MANUFACTURING SINGLE-SIDED CORRUGATED BOARD
DE2442064A1 (en) * 1973-09-04 1975-03-20 Harris Corp MACHINE FOR THE PRODUCTION OF SINGLE-SIDED CORRUGATED CARDBOARD

Also Published As

Publication number Publication date
ES282963U (en) 1985-05-01
DK401083A (en) 1984-03-05
DE8225044U1 (en) 1982-12-02
ES282963Y (en) 1985-12-16
DK401083D0 (en) 1983-09-02

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