EP0347642A2 - Corrugating roller for a single corrugating rolling machine - Google Patents
Corrugating roller for a single corrugating rolling machine Download PDFInfo
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- EP0347642A2 EP0347642A2 EP89110214A EP89110214A EP0347642A2 EP 0347642 A2 EP0347642 A2 EP 0347642A2 EP 89110214 A EP89110214 A EP 89110214A EP 89110214 A EP89110214 A EP 89110214A EP 0347642 A2 EP0347642 A2 EP 0347642A2
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- Prior art keywords
- grooves
- corrugated
- roller
- corrugating
- corrugated roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
Definitions
- the invention relates to a corrugated roller for a single-sided corrugated cardboard machine according to the preamble of patent claim 1.
- Older single-sided corrugated cardboard machines use so-called fingers, which are thin sheet metal plates that surround the mentioned corrugated roller area of the lower corrugated roller in a crescent-like manner from the outside at axial intervals.
- the upper corrugating roller is provided with ring grooves in which the fingers engage.
- Such ring grooves of the upper corrugating roller have the disadvantage that they lead to a corresponding deformation of the surface of the lower corrugating roller. It is therefore necessary to adjust the corrugated rollers axially against each other from time to time in order to even out the wear.
- More modern single-sided corrugated cardboard machines are so-called fingerless machines.
- DE-PS 2 840 150 it has become known to arrange a vacuum chamber along the outer circumferential area of the lower corrugating roller which is not covered by the corrugated cardboard web. Via axially spaced ring grooves in the corrugated roller, a negative pressure is also generated in the peripheral region of the lower corrugated roller in which the corrugated cardboard web lies.
- DE-PS 2 713 464 it has also become known to generate such a negative pressure in the ring grooves in that the lower corrugating roller connects an inner one with the negative pressure source which has channel which is connected to the annular grooves via radial bores.
- one of the two corrugated rollers is therefore provided with ring grooves.
- ring grooves can cause a reduction in the quality of the corrugated cardboard.
- the corrugated cardboard web to be formed between the corrugated rollers is under considerable tensile stress. The web is therefore deformed into the area of the ring grooves. In this area there is no bonding with the cover sheet afterwards. Furthermore, the stability of the corrugated cardboard is weakened in the direction of the corrugation.
- corrugated roller with slots are also complex since these have to be milled separately piece by piece.
- the necessary chrome plating of such a corrugated roller is also complex, since diaphragms have to be introduced into the individual slots in order to omit the slots.
- the invention has for its object to provide a corrugated roller for a single-sided corrugated cardboard machine, which reduces the impairment of the corrugated cardboard by necessary grooves to a minimum, without influencing the function of the grooves or the corrugated roller.
- the groove no longer runs perpendicularly to an axis-parallel surface line, as in the prior art, but at an angle not equal to 90 ° thereto.
- a helical groove is formed. It can also be two or more courses. Another possibility is to provide annular grooves as before, but to arrange them at an angle to the axis of the roller.
- the ring grooves can also be arranged such that they have opposite inclinations on both sides of the longitudinal center.
- helical or ring-shaped grooves can also intersect, for example ring grooves crossing each other in pairs can be provided.
- the advantage of a simple cleaning possibility, as is also given with conventional ring grooves, is maintained.
- the disadvantages associated with the conventional ring grooves are largely eliminated. Due to the oblique course of the ring grooves relative to the direction of the web, there is, if at all, only a slight deformation of the web in the region of the groove, so that the deterioration in the quality of the corrugated cardboard which had previously been accepted has been eliminated.
- the production of the corrugated roller according to the invention is no more complex than conventional corrugated rollers with circular ring grooves and less complex than with corrugated rollers with annularly arranged slots.
- the corrugated roller according to the invention also has increased bending stiffness compared to conventional annular grooves having corrugated rollers.
- Upper and lower corrugated rollers usually have different numbers of teeth.
- a groove arranged according to the invention therefore, in contrast to known corrugated rollers, no longer leads to ring-like projections on the corrugated tips opposite the groove due to the lack of abrasion in relation to the grooves, rather the wear of the counter roller is evened out, so that the axial displacement of a corrugated roller from time to time does not is more necessary.
- the effect described results in a longer service life. Above all, the adverse phenomena are due to the hump on the corrugation tips, which lead to a deterioration in the quality of the corrugated cardboard, are avoided.
- the corrugated roller according to the invention is advantageously suitable for all types of corrugated cardboard machines as have become known up to now, i.e. for both finger machines and for fingerless machines.
- corrugating roller 10 for example the lower corrugating roller of a fingerless single-sided corrugated cardboard machine, which has a conventional corrugation, but which is not shown for the sake of simplicity.
- helical grooves 11, 12 extend to the left and right with a predetermined pitch.
- helical grooves 13, 14 extend on both sides from the longitudinal center, which have the same pitch as the grooves 11, 12, but are offset in the circumferential direction, as in the case of a two-start thread.
- the shape of the grooves is also not shown, it can be the same as the usual grooves in corrugated rollers.
- FIG. 2 shows a corrugated roller 20, which has a series of axially uniformly spaced annular grooves 21, which run at an angle unequal to 90 ° to axially parallel surface lines.
- a first group of annular grooves 31 is provided, the arrangement of which is similar to the grooves 21 according to FIG. 2.
- a second group of annular grooves 32 are shaped with the opposite inclination as the grooves 31 and arranged so that the grooves 31, 32 intersect at diametrically opposite points.
- the 4 has a corrugation roll 40 ring grooves 41, 42 on both sides of the longitudinal center.
- the ring grooves 41, 42 have an opposite slope, are otherwise arranged similarly as described in connection with the roller 20 of FIG. 2.
- the annular grooves according to FIGS. 2 to 4 represent closed loops, which makes cleaning particularly easy with the aid of a cleaning element inserted into the grooves, which performs a reciprocating movement parallel to the axis during the rotation of the corrugating roller.
- the cleaning element can also move axially parallel during the rotation of the roller. Arrived at one end of the roller, the direction of rotation of the roller must be reversed.
- a helical course is also conceivable, in which the cleaning element is automatically reversed at one end and moves axially in the opposite direction.
- Fig. 5 shows two helical grooves 51, 52 in a corrugated roller 50 with opposite but equal pitch.
- each section of the grooves of the individual corrugating rollers runs at an angle to the direction of the paper track, which also indicates the direction of the tractive force.
- a shaping of the paper web into the grooves therefore no longer takes place or only to a limited, negligible extent.
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- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Riffelwalze für eine einseitige Wellpappenmaschine nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a corrugated roller for a single-sided corrugated cardboard machine according to the preamble of
Bei einseitigen Wellpappenmaschinen wirken bekanntlich zwei Riffelwalzen zusammen, zwischen denen durch weitgehend plastische Verformung eine Papierbahn gewellt wird. Mit der unteren Riffelwalze wirkt eine Preßwalze zusammen, die die herangeführte Deckbahn gegen die gewellte Bahn andrückt, deren Wellenspitzen zuvor mit Leim versehen wurden. Im Umfangsbereich der unteren Riffelwalze zwischen dem Prägeeingriff mit der oberen Riffelwalze und der Preßwalze muß unter Aufrechterhaltung der Wellform Sorge dafür getragen werden, daß die gewellte Bahn sich an die Rillung der unteren Riffelwalze anschmiegt. Ältere einseitige Wellpappenmaschinen verwenden sogenannte Finger, das sind dünne Blechplatten, die in Achsabständen von außen den erwähnten Riffelwalzenbereich der unteren Riffelwalze halbmondartig umgeben. Zu diesem Zweck ist die obere Riffelwalze mit Ringnuten versehen, in die die Finger eingreifen. Derartige Ringnuten der oberen Riffelwalze haben den Nachteil, daß sie zu einer entsprechenden Verformung der Oberfläche der unteren Riffelwalze führen. Es ist daher notwendig, die Riffelwalzen von Zeit zu Zeit axial gegeneinander zu verstellen, um die Abnutzung zu vergleichmäßigen.In corrugated cardboard machines on one side, it is known that two corrugated rollers interact, between which a paper web is corrugated by largely plastic deformation. A press roller interacts with the lower corrugating roller and presses the cover sheet against the corrugated sheet, the shaft tips of which have previously been provided with glue. In the circumferential area of the lower corrugating roller between the embossing engagement with the upper corrugating roller and the press roller must be maintained while Wellform Ensure that the corrugated web clings to the grooving of the lower corrugating roller. Older single-sided corrugated cardboard machines use so-called fingers, which are thin sheet metal plates that surround the mentioned corrugated roller area of the lower corrugated roller in a crescent-like manner from the outside at axial intervals. For this purpose, the upper corrugating roller is provided with ring grooves in which the fingers engage. Such ring grooves of the upper corrugating roller have the disadvantage that they lead to a corresponding deformation of the surface of the lower corrugating roller. It is therefore necessary to adjust the corrugated rollers axially against each other from time to time in order to even out the wear.
Modernere einseitige Wellpappenmaschinen sind sogenannte fingerlose Maschinen. Aus der DE-PS 2 840 150 ist bekanntgeworden, längs des von der gewellten Pappenbahn nicht bedeckten äußeren Umfangsbereichs der unteren Riffelwalze eine Unterdruckkammer anzuordnen. Über axial beabstandete Ringnuten in der Riffelwalze wird dadurch auch ein Unterdruck in dem Umfangsbereich der unteren Riffelwalze erzeugt, in dem die Wellpappenbahn anliegt. Aus der DE-PS 2 713 464 ist auch bekanntgeworden, einen derartigen Unterdruck in den Ringnuten dadurch zu erzeugen, daß die untere Riffelwalze einen inneren mit der Unterdruckquelle verbun denen Kanal aufweist, der über radiale Bohrungen mit den Ringnuten verbunden ist. In dem von der Wellpappenbahn nicht bedeckten Umfangsbereich der Riffelwalze sind wiederum "Finger" in den Ringnuten angeordnet, um einen "Kurzschluß" des Vakuums zu verhindern. Im Gegensatz zur Fingermaschine, bei der die Führungsbleche einem erheblichen Verschleiß unterliegen und daher häufig ausgewechselt werden müssen, stellen die Finger bei der zuletzt beschriebenen bekannten Maschine lediglich eine Dichtung dar, die einen weitaus geringeren Verschleiß zur Folge hat. Aus der DE-PS 2 951 774 ist auch bekanntgeworden, statt eines zentralen Kanals in der unteren Riffelwalze mehrere achsparallele Längsbohrungen vorzusehen, die über radiale Bohrungen mit den Ringnuten verbunden sind. Aus der EP-PS 0 009 907 ist auch bekanntgeworden, derartige achsparallele Saugkanäle so zu führen, daß sie die Ringnuten schneiden.More modern single-sided corrugated cardboard machines are so-called fingerless machines. From DE-PS 2 840 150 it has become known to arrange a vacuum chamber along the outer circumferential area of the lower corrugating roller which is not covered by the corrugated cardboard web. Via axially spaced ring grooves in the corrugated roller, a negative pressure is also generated in the peripheral region of the lower corrugated roller in which the corrugated cardboard web lies. From DE-PS 2 713 464 it has also become known to generate such a negative pressure in the ring grooves in that the lower corrugating roller connects an inner one with the negative pressure source which has channel which is connected to the annular grooves via radial bores. In the circumferential area of the corrugated roller that is not covered by the corrugated cardboard web, “fingers” are again arranged in the ring grooves in order to prevent a “short circuit” of the vacuum. In contrast to the finger machine, in which the guide plates are subject to considerable wear and must therefore be replaced frequently, the fingers in the known machine described last only represent a seal which results in far less wear. From DE-PS 2 951 774 it has also become known to provide, instead of a central channel in the lower corrugating roller, a plurality of axially parallel longitudinal bores which are connected to the annular grooves via radial bores. From EP-PS 0 009 907 it has also become known to guide such axially parallel suction channels so that they cut the ring grooves.
In einer Umkehrung zum Saugprinzip ist aus der US-PS 4 261 784 bekanntgeworden, dem von der Wellpappenbahn umschlungenen Bereich der unteren Riffelwalze eine Druckkammer zuzuordnen, um die Wellpappenbahn gegen die Oberfläche der Riffelwalze anzudrücken. Zur Erzeugung eines entsprechenden Differenzdrucks ist die untere Riffelwalze wiederum mit axial beabstandeten Ringnuten versehen. Aus der US-PS 4 368 094 ist auch bekanntgeworden, in Ringnuten der unteren Riffelwalze Düsen eingreifen zu lassen, die an einer Unterdruckquelle angeschlossen sind.In a reversal of the suction principle, it has become known from US Pat. No. 4,261,784 to assign a pressure chamber to the area of the lower corrugating roller wrapped by the corrugated cardboard web in order to press the corrugated cardboard web against the surface of the corrugating roller. To generate a corresponding differential pressure, the lower corrugating roller is again provided with axially spaced ring grooves. Out US Pat. No. 4,368,094 has also become known for engaging nozzles in annular grooves of the lower corrugating roller which are connected to a vacuum source.
In allen erwähnten Fällen ist daher eine der beiden Riffelwalzen mit Ringnuten versehen. Derartige Ringnuten können jedoch eine Qualitätsminderung der Wellpappe verursachen. Die zwischen den Riffelwalzen zu formende Wellpappenbahn steht unter nicht unerheblicher Zugspannung. Die Bahn wird daher im Bereich der Ringnuten in diese hineinverformt. In diesem Bereich findet im Anschluß keine Verklebung mit der Deckbahn statt. Ferner wird die Stabilität der Wellpappe in Wellrichtung geschwächt.In all the cases mentioned, one of the two corrugated rollers is therefore provided with ring grooves. However, such ring grooves can cause a reduction in the quality of the corrugated cardboard. The corrugated cardboard web to be formed between the corrugated rollers is under considerable tensile stress. The web is therefore deformed into the area of the ring grooves. In this area there is no bonding with the cover sheet afterwards. Furthermore, the stability of the corrugated cardboard is weakened in the direction of the corrugation.
Nun ist aus der EP-PS 0 025 759 bereits bekanntgeworden, anstelle von umlaufenden Ringnuten kurze Schlitze ringartig am Umfang der unteren Riffelwalze anzuordnen und diese mit Vakuum- bzw. Druckkanälen abwechselnd in Verbindung zu setzen. Auch bei derartigen Schlitzen wird durch die Spannung der Bahn diese in die Schlitze hineinverformt, jedoch nicht kontinuierlich wie bei kontinuierlich umlaufenden Ringnuten. Dafür ist jedoch eine derartige Riffelwalze mit anderen Nachteilen behaftet. Naturgemäß sammeln sich in den Ringnuten und auch in den Schlitzen nach einer gewissen Betriebszeit Staub und Schmutz an, wodurch die Funktion der Nuten und Schlitze beeinträchtigt wird. Die Riffelwalze muß daher von Zeit zu Zeit gereinigt werden. Eine Reinigung der Schlitze ist jedoch äußerst aufwendig. Aufwendig ist auch die Herstellung einer Riffelwalze mit Schlitzen, da diese separat Stück für Stück eingefräst werden müssen. Auch das notwendige Verchromen einer derartigen Riffelwalze ist aufwendig, da in die einzelnen Schlitze Blenden eingebracht werden müssen, um die Schlitze auszusparen.It has now become known from EP-PS 0 025 759 to arrange short slots in a ring-like manner on the circumference of the lower corrugating roller instead of circumferential ring grooves and to alternately connect them to vacuum or pressure channels. Even with such slits, the tension of the web deforms it into the slits, but not continuously as with continuously rotating ring grooves. However, such a corrugated roller has other disadvantages. Naturally, they collect in the ring grooves and also in the slots after one dust and dirt for a certain period of operation, which affects the function of the grooves and slots. The corrugated roller must therefore be cleaned from time to time. However, cleaning the slots is extremely complex. The production of a corrugated roller with slots is also complex since these have to be milled separately piece by piece. The necessary chrome plating of such a corrugated roller is also complex, since diaphragms have to be introduced into the individual slots in order to omit the slots.
Der Erfindung liegt die Aufgabe zugrunde, eine Riffelwalze für eine einseitige Wellpappenmaschine zu schaffen, die die Beeinträchtigung der Wellpappe durch notwendige Nuten auf ein Mindestmaß verringert, ohne die Funktion der Nuten bzw. der Riffelwalze zu beeinflussen.The invention has for its object to provide a corrugated roller for a single-sided corrugated cardboard machine, which reduces the impairment of the corrugated cardboard by necessary grooves to a minimum, without influencing the function of the grooves or the corrugated roller.
Diese Aufgabe wird erfindungsgemäß durch das Merkmal des Kennzeichnungsteils des Anspruchs 1 gelöst.This object is achieved by the feature of the characterizing part of
Bei der erfindungsgemäßen Riffelwalze verläuft die Nut nicht mehr wie im Stand der Technik senkrecht zu einer achsparallelen Mantellinie, sondern in einem Winkel ungleich 90° dazu. Es gibt verschiedene Möglichkeiten, einen derartigen Nutverlauf herbeizuführen. Eine besteht nach einer Ausgestaltung der Erfindung darin, daß eine schraubenlinienförmige Nut eingeformt ist. Sie kann auch zwei- oder mehrgängig sein. Eine andere Möglichkeit besteht darin, Ringnuten wie bisher vorzusehen, diese jedoch schräg zur Achse der Walze anzuordnen. Die Ringnuten können nach einer weiteren Ausgestaltung der Erfindung auch so angeordnet sein, daß sie beidseits der Längsmitte entgegengesetzte Neigung aufweisen. Schließlich können schraubenlinienförmige oder ringförmige Nuten sich auch kreuzen, beispielsweise können jeweils paarweise sich kreuzende Ringnuten vorgesehen sein.In the corrugated roller according to the invention, the groove no longer runs perpendicularly to an axis-parallel surface line, as in the prior art, but at an angle not equal to 90 ° thereto. There are different possibilities, to bring about such a groove course. According to one embodiment of the invention, one is that a helical groove is formed. It can also be two or more courses. Another possibility is to provide annular grooves as before, but to arrange them at an angle to the axis of the roller. According to a further embodiment of the invention, the ring grooves can also be arranged such that they have opposite inclinations on both sides of the longitudinal center. Finally, helical or ring-shaped grooves can also intersect, for example ring grooves crossing each other in pairs can be provided.
Bei den Riffelwalzen nach der Erfindung wird der Vorteil einer einfachen Reinigungsmöglichkeit, wie sie auch bei herkömmlichen Ringnuten gegeben ist, beibehalten. Die mit den herkömmlichen Ringnuten verbundenen Nachteile werden jedoch weitgehend ausgeschaltet. Durch den relativ zu Bahnrichtung schrägen Verlauf der Ringnuten kommt es, wenn überhaupt, nur noch zu einer geringfügigen Verformung der Bahn im Bereich der Nut, so daß die bisher in Kauf zu nehmende Beeinträchtigung der Wellpappenqualität beseitigt ist. Selbst eine gewisse Verformung wäre insofern weniger nachteilig, als sie nicht mehr auf einer Linie parallel zur Längsachse der Bahn verläuft, sondern schräg dazu, so daß zum Beispiel nicht mehr geschehen kann, daß eine derartige Verformung parallel zu einer Rillinie eines Faltkartons verläuft und deren Funktion beeinträchtigt.In the corrugated rollers according to the invention, the advantage of a simple cleaning possibility, as is also given with conventional ring grooves, is maintained. However, the disadvantages associated with the conventional ring grooves are largely eliminated. Due to the oblique course of the ring grooves relative to the direction of the web, there is, if at all, only a slight deformation of the web in the region of the groove, so that the deterioration in the quality of the corrugated cardboard which had previously been accepted has been eliminated. Even a certain amount of deformation would be less disadvantageous in that it would no longer line up runs parallel to the longitudinal axis of the web, but obliquely thereto, so that, for example, it can no longer happen that such a deformation runs parallel to a crease line of a folding carton and impairs its function.
Die Herstellung der erfindungsgemäßen Riffelwalze ist nicht aufwendiger als beiherkömmlichen Riffelwalzen mit Kreisringnuten und weniger aufwendig als bei Riffelwalzen mit ringartig angeordneten Schlitzen. Die erfindungsgemäße Riffelwalze besitzt außerdem gegenüber herkömmlichen, kreisringförmige Nuten aufweisendenRiffelwalzen eine erhöhte Biegesteifigkeit.The production of the corrugated roller according to the invention is no more complex than conventional corrugated rollers with circular ring grooves and less complex than with corrugated rollers with annularly arranged slots. The corrugated roller according to the invention also has increased bending stiffness compared to conventional annular grooves having corrugated rollers.
Obere und untere Riffelwalze weisen normalerweise eine unterschiedliche Zähnezahl auf. Eine erfindungsgemäß angeordnete Nut führt daher im Gegensatz zu bekannten Riffelwalzen nicht mehr zu ringartig angeordneten Buckeln auf den der Nut gegenüberliegenden Riffelspitzen aufgrund des fehlenden Abtrags gegenüber den Nuten, vielmehr wird der Verschleiß der Gegenwalze vergleichmäßigt, so daß die Axialverschiebung einer Riffelwalze von Zeit zu Zeit nicht mehr notwendig ist. Der beschriebene Effekt hat eine höhere Standzeit zur Folge. Vor allen Dingen werden die nachteiligen Erscheinungen aufgrund der Buckel auf den Riffel spitzen, die zur Verschlechterung der Wellpappenqualität führen, vermieden.Upper and lower corrugated rollers usually have different numbers of teeth. A groove arranged according to the invention therefore, in contrast to known corrugated rollers, no longer leads to ring-like projections on the corrugated tips opposite the groove due to the lack of abrasion in relation to the grooves, rather the wear of the counter roller is evened out, so that the axial displacement of a corrugated roller from time to time does not is more necessary. The effect described results in a longer service life. Above all, the adverse phenomena are due to the hump on the corrugation tips, which lead to a deterioration in the quality of the corrugated cardboard, are avoided.
Die erfindungsgemäße Riffelwalze ist für alle Typen von Wellpappenmaschinen, wie sie bisher bekanntgeworden sind, in vorteilhafter Weise geeignet, d.h. sowohl für Fingermaschinen als auch für fingerlose Maschinen.The corrugated roller according to the invention is advantageously suitable for all types of corrugated cardboard machines as have become known up to now, i.e. for both finger machines and for fingerless machines.
Die Erfindung wird nachfolgend anhand von Zeichnungen näher erläutert.
Figuren 1 bis 5 zeigen schematisch verschiedene Ausführungsformen für erfindungsgemäße Riffelwalzen.
- Figures 1 to 5 show schematically different embodiments for corrugated rollers according to the invention.
Bevor auf die in den Zeichnungen dargestellten Einzelheiten näher eingegangen wird, sei vorangestellt, daß jedes der beschriebenen Merkmale für sich oder in Verbindung mit Merkmalen der Ansprüche von erfindungswesentlicher Bedeutung sein kann.Before going into the details shown in the drawings, it should be stated that each of the features described may be of importance for the invention, either individually or in conjunction with features of the claims.
Fig. 1 zeigt eine Riffelwalze 10, beispielsweise die untere Riffelwalze einer fingerlosen einseitigen Wellpappenmaschine, die eine übliche Riffelung aufweist, die jedoch der Einfachheit halber nicht dargestellt ist. Von der Längs mitte ausgehend erstrecken sich nach links und rechts schraubenlinienförmige Nuten 11, 12 mit einer vorgegebenen Steigung. Ferner erstrecken sich schraubenlinienförmige Nuten 13, 14 beidseitig von der Längsmitte, die zwar die gleiche Steigung aufweisen wie die Nuten 11, 12, jedoch in Umfangsrichtung versetzt liegen, wie bei einem zweigängigen Gewinde. Die Form der Nuten ist ebenfalls nicht dargestellt, sie kann der üblicher Nuten bei Riffelwalzen gleichen.1 shows a
Fig. 2 zeigt eine Riffelwalze 20, die eine Reihe von axial gleichmäßig beabstandeten ringförmigen Nuten 21 aufweist, die in einem Winkel ungleich 90° zu achsparallelen Mantellinien verlaufen.FIG. 2 shows a
Bei der Riffelwalze 30 nach Fig. 3 ist eine erste Gruppe von ringförmigen Nuten 31 vorgesehen, deren Anordnung den Nuten 21 nach Fig. 2 gleicht. Eine zweite Gruppe von ringförmigen Nuten 32 ist mit der entgegengesetzten Neigung wie die Nuten 31 geformt und so angeordnet, daß sich die Nuten 31, 32 an diametral gegenüberliegenden Punkten schneiden.3, a first group of
Bei dem Ausführungsbeispiel nach Fig. 4 weist eine Riffel walze 40 beidseits der Längsmitte Ringnuten 41, 42 auf. Die Ringnuten 41, 42 weisen eine entgegengesetzte Steigung auf, sind im übrigen ähnlich angeordnet wie in Verbindung mit der Walze 20 nach Fig. 2 beschrieben.4 has a
Die ringförmigen Nuten nach den Figuren 2 bis 4 stellen geschlossene Schleifen dar, wodurch besonders einfach ein Reinigen mit Hilfe eines in die Nuten eingeführten Reinigungselements möglich ist, das während der Drehung der Riffelwalze eine hin- und hergehende Bewegung parallel zur Achse ausführt. Bei einer schraubenlinienförmigen Nut, wie in Fig. 1 dargestellt, kann sich das Reinigungselement ebenfalls achsparallel während der Walzendrehung bewegen. An einem Ende der Walze angekommen, muß die Drehrichtung der Walze umgekehrt werden. Es ist jedoch auch ein schraubenlinienförmiger Verlauf denkbar, bei dem das Reinigungselement an einem Ende automatisch umgekehrt wird und axial in die entgegengesetzte Richtung fährt.The annular grooves according to FIGS. 2 to 4 represent closed loops, which makes cleaning particularly easy with the aid of a cleaning element inserted into the grooves, which performs a reciprocating movement parallel to the axis during the rotation of the corrugating roller. In the case of a helical groove, as shown in FIG. 1, the cleaning element can also move axially parallel during the rotation of the roller. Arrived at one end of the roller, the direction of rotation of the roller must be reversed. However, a helical course is also conceivable, in which the cleaning element is automatically reversed at one end and moves axially in the opposite direction.
Fig. 5 zeigt zwei schraubenlinienförmige Nuten 51, 52 in einer Riffelwalze 50 mit gegenläufiger, jedoch gleicher Steigung.Fig. 5 shows two
Wie erkennbar, verläuft jeder Abschnitt der Nuten der einzelen Riffelwalzen in einem Winkel zur Richtung der Papier bahn, die zugleich auch die Richtung der Zugkraft angibt. Ein Hineinformen der Papierbahn in die Nuten findet daher nicht mehr statt oder nur in einem begrenzten, vernachlässigbaren Ausmaß.As can be seen, each section of the grooves of the individual corrugating rollers runs at an angle to the direction of the paper track, which also indicates the direction of the tractive force. A shaping of the paper web into the grooves therefore no longer takes place or only to a limited, negligible extent.
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3820702 | 1988-06-18 | ||
| DE3820702A DE3820702C1 (en) | 1988-06-18 | 1988-06-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0347642A2 true EP0347642A2 (en) | 1989-12-27 |
| EP0347642A3 EP0347642A3 (en) | 1990-03-28 |
| EP0347642B1 EP0347642B1 (en) | 1993-07-14 |
Family
ID=6356790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89110214A Expired - Lifetime EP0347642B1 (en) | 1988-06-18 | 1989-06-06 | Corrugating roller for a single corrugating rolling machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5096407A (en) |
| EP (1) | EP0347642B1 (en) |
| JP (2) | JPH0239922A (en) |
| DE (2) | DE3820702C1 (en) |
| ES (1) | ES2041895T3 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5191833A (en) * | 1992-04-16 | 1993-03-09 | Ford New Holland, Inc. | Roll stripping apparatus for round baler |
| DE4403751A1 (en) * | 1994-02-08 | 1995-08-10 | Strepp Gmbh & Co Kg Papierfabr | Upholstery material and process for producing this upholstery material |
| JPH0934245A (en) * | 1995-07-19 | 1997-02-07 | Hewlett Packard Co <Hp> | Material movement roller for electrophotography |
| US5794758A (en) * | 1996-05-24 | 1998-08-18 | Scapa Group Plc | Roller apparatus |
| DE19757897C1 (en) * | 1997-12-24 | 1999-07-22 | Koenig & Bauer Ag | Arrangement for an inking unit of a rotary printing press |
| US6074507A (en) * | 1998-01-09 | 2000-06-13 | Corrugating Roll Corporation | Corrugating roll with improved flute profile |
| JP2001047533A (en) | 1999-08-12 | 2001-02-20 | Isowa Corp | Corrugation roll and corrugated cardboard manufacturing apparatus |
| US6482140B1 (en) * | 1999-12-08 | 2002-11-19 | Tashico Corporation | Roller and method of producing the same |
| US7506800B2 (en) * | 2003-11-17 | 2009-03-24 | Benchmark Entertainment, L.C. | Ticket counter and cutter |
| US7722713B2 (en) * | 2005-05-17 | 2010-05-25 | Cabot Corporation | Carbon blacks and polymers containing the same |
| US10974919B2 (en) * | 2012-11-14 | 2021-04-13 | Shark Wheel, Inc. | Device and method for aligning material sheets |
| US20140234038A1 (en) * | 2013-01-03 | 2014-08-21 | David Grover Freund | High shear cutting tool |
| US20140186129A1 (en) * | 2013-01-03 | 2014-07-03 | David Grover Freund | High shear cutting tool |
| DE102018113833A1 (en) * | 2018-06-11 | 2019-12-12 | Voith Patent Gmbh | Grooved roller and device comprising the same |
| CA3157922A1 (en) | 2019-11-22 | 2021-05-27 | James BOSHAW | Conformable recyclable shipping container |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1629511A (en) * | 1923-11-17 | 1927-05-24 | Kramer Joseph | Machine for manufacturing corrugated board |
| GB535352A (en) * | 1939-01-11 | 1941-04-07 | Sherman Paper Products Corp | Manufacture of indented corrugated papers |
| GB808899A (en) * | 1954-07-12 | 1959-02-11 | F F A S P A Fabbriche Fiammife | Improved continuous automatic machine for the production of relief pattern packing paper from paper or similar material |
| US3556921A (en) * | 1964-06-15 | 1971-01-19 | Johnson & Johnson | Mechanically compressed extensible fabric |
| US3837973A (en) * | 1972-07-07 | 1974-09-24 | Toyo Kagaku Kk | Apparatus for continuously producing corrugated plastic board |
| US3972763A (en) * | 1974-06-10 | 1976-08-03 | Weyerhaeuser Company | Method of laminating planar and corrugated surface defining layers of sheet material |
| EP0025759A1 (en) * | 1979-09-14 | 1981-03-25 | S.A. Martin | Machine for manufacturing single-faced corrugated board |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1056C (en) * | 1911-11-22 | 1916-02-01 | Beran Albert | Universal rollers for the production of corrugated cardboard, corrugated sheet iron and the like |
| US1130911A (en) * | 1914-07-03 | 1915-03-09 | Jacob Loomis | Hot mill-roll. |
| US2570470A (en) * | 1950-05-16 | 1951-10-09 | United Shoe Machinery Corp | Bladed roll for working hides |
| US3056164A (en) * | 1956-02-21 | 1962-10-02 | American Viscose Corp | Apparatus for producing non-fibrous film |
| JPS5937831B2 (en) * | 1975-01-21 | 1984-09-12 | キヤノン株式会社 | Electrophotographic developing device |
| US4021894A (en) * | 1975-06-30 | 1977-05-10 | Crompton & Knowles Corporation | Textile spreader roller |
| AU509066B2 (en) * | 1976-04-19 | 1980-04-17 | Rengo Co. Ltd. | Manufacturing single faced corrugated board |
| US4363616A (en) * | 1976-06-18 | 1982-12-14 | Imperial Chemical Industries Limited | Machine and part therefor |
| JPS5453096A (en) * | 1977-10-03 | 1979-04-26 | Isowa Industry Co | Core holder for apparatus for making oneeside corrugated cardboard |
| US4154565A (en) * | 1978-05-05 | 1979-05-15 | Koppers Company, Inc. | Corrugator roll |
| JPS5534949A (en) * | 1978-09-04 | 1980-03-11 | Nippon Denshi Kogyo Kk | Apparatus for producing single faced corrugated fibreboard |
| BR7905400A (en) * | 1978-10-05 | 1980-05-20 | Mitsubishi Heavy Ind Ltd | LOWER CYLINDER ON A SINGLE MACHINE |
| JPS5584650A (en) * | 1978-12-22 | 1980-06-26 | Isowa Industry Co | Core retainer for oneesideecorrugated cardboard making machine |
| DE2952563C2 (en) * | 1979-12-28 | 1985-04-25 | BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München | Device for the production of corrugated cardboard with a cover on at least one side |
| US4381212A (en) * | 1980-02-20 | 1983-04-26 | Molins Machine Company, Inc. | Fingerless single facer |
| JPS604754U (en) * | 1983-06-23 | 1985-01-14 | スズキ株式会社 | Air cleaner hose mounting device |
| CA1194662A (en) * | 1983-07-12 | 1985-10-08 | Lupke, Manfred A. A. | Producing double-walled helically wound thermoplastic pipe |
| JPS6135548A (en) * | 1984-07-27 | 1986-02-20 | Hitachi Ltd | Manufacture of semiconductor device |
| US4832186A (en) * | 1988-04-18 | 1989-05-23 | Dynapower Corporation | Conveyor tracking roller having helical guides with variable pitch |
-
1988
- 1988-06-18 DE DE3820702A patent/DE3820702C1/de not_active Expired
-
1989
- 1989-06-06 EP EP89110214A patent/EP0347642B1/en not_active Expired - Lifetime
- 1989-06-06 ES ES198989110214T patent/ES2041895T3/en not_active Expired - Lifetime
- 1989-06-06 DE DE8989110214T patent/DE58904901D1/en not_active Expired - Fee Related
- 1989-06-08 US US07/364,328 patent/US5096407A/en not_active Expired - Fee Related
- 1989-06-16 JP JP1155564A patent/JPH0239922A/en active Pending
-
1994
- 1994-05-16 JP JP006612U patent/JPH0744466U/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1629511A (en) * | 1923-11-17 | 1927-05-24 | Kramer Joseph | Machine for manufacturing corrugated board |
| GB535352A (en) * | 1939-01-11 | 1941-04-07 | Sherman Paper Products Corp | Manufacture of indented corrugated papers |
| GB808899A (en) * | 1954-07-12 | 1959-02-11 | F F A S P A Fabbriche Fiammife | Improved continuous automatic machine for the production of relief pattern packing paper from paper or similar material |
| US3556921A (en) * | 1964-06-15 | 1971-01-19 | Johnson & Johnson | Mechanically compressed extensible fabric |
| US3837973A (en) * | 1972-07-07 | 1974-09-24 | Toyo Kagaku Kk | Apparatus for continuously producing corrugated plastic board |
| US3972763A (en) * | 1974-06-10 | 1976-08-03 | Weyerhaeuser Company | Method of laminating planar and corrugated surface defining layers of sheet material |
| EP0025759A1 (en) * | 1979-09-14 | 1981-03-25 | S.A. Martin | Machine for manufacturing single-faced corrugated board |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2041895T3 (en) | 1993-12-01 |
| JPH0239922A (en) | 1990-02-08 |
| EP0347642A3 (en) | 1990-03-28 |
| JPH0744466U (en) | 1995-11-21 |
| DE58904901D1 (en) | 1993-08-19 |
| DE3820702C1 (en) | 1989-03-16 |
| EP0347642B1 (en) | 1993-07-14 |
| US5096407A (en) | 1992-03-17 |
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