EP0703176A1 - Spreading roller - Google Patents
Spreading roller Download PDFInfo
- Publication number
- EP0703176A1 EP0703176A1 EP95109165A EP95109165A EP0703176A1 EP 0703176 A1 EP0703176 A1 EP 0703176A1 EP 95109165 A EP95109165 A EP 95109165A EP 95109165 A EP95109165 A EP 95109165A EP 0703176 A1 EP0703176 A1 EP 0703176A1
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- EP
- European Patent Office
- Prior art keywords
- roller
- spreader
- incisions
- helical
- spreader roller
- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
- B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
- B65H23/0251—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis
- B65H23/0256—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis with opposed helicoidal windings
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
- D06C3/06—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus
Definitions
- the invention relates to an spreader roller for spreading running flexible web material, which has the features of the preamble of claim 1.
- Spreader rollers are used to smoothly spread incoming web material that is not sufficiently smooth or even, and in particular with longitudinal folds, before it is processed, cut, rolled up, stored or used in any other way.
- thinner foils, but also paper webs, textile webs and the like must be spread out smoothly before processing, storage or the like, since folds, waves, warps and the like remaining in the material not only impart an unsightly appearance, but also on the surfaces Mark further web sections with which the undrawn or insufficiently spread web sections come into contact, for example when rolling up.
- the jacket-shaped covering arranged on the roll body is made in one piece from elastomeric material and contains annular incisions starting from its cylindrical jacket surface and extending obliquely or inclinedly with respect to the longitudinal axis of the roll body, the inclined position, viewed from the center of the roll, runs from the inside to the outside in the relevant roll end. Since the open ends of the incisions are arranged in a ring in the spreader covering, they run in the direction of movement of the web material to be spread.
- the invention has for its object to provide a spreader roll which can be manufactured press-fit and nevertheless shows an improved spreader effect, in particular also when very thin and light flexible web material is to be spread and spread.
- spreading is also improved in the spreading roller according to the invention because these diverging sections are not the same Radial planes of the roller lie, but because of the helical design of the incisions constantly shift when the roller rotates and thereby the position of the contact points between the material web to be spread and the spreader roller changes constantly in the area of the incisions.
- the wrap angle of the material web running over the spreader roller it is detected over the entire width and moved in the direction of stretching or spreading, as far as this is possible and necessary.
- the spreader roller (1) shown in its entirety in FIGS. 1 and 2 has an inelastic to rigid cylindrical roller body (2), on the front ends of which serve as journal journals (3 and 4).
- a jacket-shaped covering (5) made of elastomeric material is fastened on the outer circumference of the roller body (2) and is connected to the roller body (2) in a rotationally fixed manner and for spreading a material web (6) running over the spreader roller (1) and / or for separating of individual band-like or strip-shaped webs cut apart in the longitudinal direction of the material web.
- each incision (8 or 9) coming from the area of the radial median line (7) to or at least close to the corresponding end of the spreader roller (1).
- each obliquely undercut helical incision (8 or 9) is inclined from the inside to the outside, the inner end (10) being closer to the central plane (7) of the roller than the outer open end (11 ).
- a helical web (12) is formed between the individual turns or passages of the respective undercut incisions (8 and 9), which can dodge to the corresponding front end of the spreader roller (1) under the contact pressure of the material web (6) running over the spreader roller, as a result of which the spreading effect or separating effect of the spreading roller (1) is achieved.
- Fig. 3 the incision is shown partly with straight and partly with curved flanks or walls to show that both embodiments of the incisions are conceivable.
- the incisions of an spreader roller have only the straight or the curved shape throughout.
- each of the incisions (8 and 9) has a sharp edge in the cylindrical outer surface (14) of the covering (5)
- Fig. 3 is the helical incision (9) of the covering (5) shown so that the individual turns of the same are inclined, but - rectilinear or arched - parallel next to each other - as seen in the axial direction of the spreader roller (1).
- the covering (5) contains a circumferential radial incision (18) which has practically no spreading effect, but rather behaves neutrally.
- the spreader roller (1) shown in the drawing causes web material (6) which is under longitudinal tension or tensile stress and which runs over the spreader roller (1), as shown in FIG. 1, to be spread in the region of the roller and thus smoothed in order to to remove incoming band material (6), longitudinal shafts (17) or other densifications, bulges, warping and the like before the web material (6) is further processed or used or rolled up for storage or otherwise deposited.
- the spreader roller is also suitable for spreading web material cut into strips in the longitudinal direction or for separating its individual strips from one another.
- the spreader roller according to the invention does not need to be connected to a drive in order to develop its spreader effect. Rather, it can also be freely rotated or even braked.
- each helical incision 8 and 9 is - as can be seen from Fig. 3 - formed semicircularly curved. This results in a particularly uniform bending back of the helical webs 12 and thus a particularly good spreading effect.
- the annular incision 18 shown in FIG. 2 can also be designed as a wider indentation, which in the central region of the spreader roller, in which there is no helical incision 8 or 9, a direct support of the wide-stretching material web 6 impairing or completely preventing the spreading prevented.
- This recess can, for example, reduce the outside diameter of the spreader roll in its area by 0.6 mm in order to show the desired effectiveness.
- the width of the zone located in the central region of the spreader roller, in which there are no helical incisions 8 or 9, and which should preferably have a reduced diameter to avoid inadequate spreading of the material webs 6 running over them can be reduced so that the inner ends 19 and 20 of the respective helical incisions 8 and 9 are offset from one another by 180 ° and do not lie next to one another, as shown in FIG. 2.
- the ends 19 and 20 of the helical incisions 8 and 9 can already be in the area of the recess or the incision 18 which reduces the outside diameter of the spreader roller.
Abstract
Description
Die Erfindung betrifft eine Breitstreckwalze zum Ausbreiten von laufendem flexiblen Bahnmaterial, welche die Merkmale des Oberbegriffes des Anspruches 1 aufweist.The invention relates to an spreader roller for spreading running flexible web material, which has the features of the preamble of
Breitstreckwalzen verwendet man, um zulaufendes Bahnmaterial, welches nicht ausreichend glatt oder eben und insbesondere mit Längsfalten zuläuft, glatt auszubreiten, bevor es verarbeitet, geschnitten, aufgerollt, gelagert oder sonstwie verwendet wird. Insbesondere dünnere Folien, aber auch Papierbahnen, Textilbahnen und dergleichen, müssen vor einer Bearbeitung, Lagerung od. dgl. glatt ausgebreitet werden, da im Material verbleibende Falten, Wellen, Verwerfungen und dergleichen nicht nur ein unschönes Aussehen vermitteln, sondern sich auch an den Oberflächen weiterer Bahnabschnitte abzeichnen, mit denen die nicht ausgebreiteten oder nicht ausreichend ausgebreiteten Bahnabschnitte beispielsweise beim Aufrollen in Kontakt kommen.Spreader rollers are used to smoothly spread incoming web material that is not sufficiently smooth or even, and in particular with longitudinal folds, before it is processed, cut, rolled up, stored or used in any other way. In particular, thinner foils, but also paper webs, textile webs and the like must be spread out smoothly before processing, storage or the like, since folds, waves, warps and the like remaining in the material not only impart an unsightly appearance, but also on the surfaces Mark further web sections with which the undrawn or insufficiently spread web sections come into contact, for example when rolling up.
Ursprünglich verwendete man als Breitstreckwalzen sogenannte Bananenwalzen, welche eine nach außen oder konvex gewölbte Oberfläche aufweisen. Derartige Breitstreckwalzen haben sich jedoch nicht als befriedigend erwiesen, so daß man eine Breitstreckwalze vorgeschlagen hat, bei der der Walzenbelag aus mehreren auf die Tragachse der Walze aufgesteckten Hülsenstücken besteht. Dabei bilden am Außenumfang der Hülsenstücke vorhandene Vorsprünge Rillen mit V-förmigem Querschnitt nach Art eines Sägezahnprofils (Stand der Technik zu DE-U-85 06 704.0). Diese bekannte Breitstreckwalze ist im Aufbau jedoch kompliziert und erfordert besondere Sorgfalt bei der Montage der Hülsenstücke.Originally, so-called banana rollers were used as spreader rollers, which have an outwardly or convexly curved surface. Such spreader rolls, however, have not proven to be satisfactory, so that an spreader roll has been proposed in which the roll covering consists of a plurality of sleeve pieces fitted onto the support axis of the roll. In this case, existing projections on the outer circumference of the sleeve pieces have grooves with a V-shaped cross section in the manner of a sawtooth profile (prior art to DE-U-85 06 704.0). However, this known spreader roller is complicated in construction and requires special care when assembling the sleeve pieces.
Bei einer weiteren bekannten Breitstreckwalze der eingangs genannten Gattung (DE-U-85 06 704.0) besteht der auf dem Walzenkörper angeordnete mantelförmige Belag einstückig aus elastomerem Material und enthält von seiner zylindrischen Mantelfläche ausgehende, zur Längsachse des Walzenkörpers schräg oder geneigt verlaufende ringförmige Einschnitte, wobei die Schrägstellung von der Walzenmitte aus betrachtet jeweils in dem betreffenden Walzenenden von innen nach außen verläuft. Da die offenen Enden der Einschnitte ringförmig im Breitstreckbelag angeordnet sind, verlaufen sie in Bewegungsrichtung des breitzustreckenden Bahmaterials. Daher besteht die Gefahr, daß sich die über die Breitstreckwalze laufende Materialbahn in die Einschnitte legt bzw. in diese ausweicht, insbesondere wenn das Bahnmaterial besonders dünn und flexibel ist und wenn Falten oder sonstige Verwerfungen des Bahnmaterials, die stets mehr oder weniger in Längsrichtung der Materialbahn verlaufen, in den Bereich eines oder mehrerer dieser Einschnitte gelangen, so daß nur eine ungenügende Breitenstreckung erzielt wird und die behandelte Materialbahn nach dem Breitstrecken nicht ausreichend glatt ist.In a further known spreader roll of the type mentioned at the outset (DE-U-85 06 704.0), the jacket-shaped covering arranged on the roll body is made in one piece from elastomeric material and contains annular incisions starting from its cylindrical jacket surface and extending obliquely or inclinedly with respect to the longitudinal axis of the roll body, the inclined position, viewed from the center of the roll, runs from the inside to the outside in the relevant roll end. Since the open ends of the incisions are arranged in a ring in the spreader covering, they run in the direction of movement of the web material to be spread. There is therefore a risk that the material web running over the spreader roller will lay in the incisions or diverge into them, especially if the web material is particularly thin and flexible and if folds or other warping of the web material is always more or less in the longitudinal direction of the material web run into the area of one or more of these incisions, so that only insufficient width stretching is achieved and the treated material web is not sufficiently smooth after spreading.
Weiterhin ist es bei Breitstreckwalzen bekannt (US-A-4 566 162), im elastomeren Belag der Breitstreckwalze wendelförmige Einschnitte vorzusehen, die von der Mittelebene der Walze nach außen in ihrer Tiefe oder Hinterschneidung zunehmen. Dadurch soll die vorbekannte Bananenform simuliert werden, jedoch zeigen derartige Breitstreckwalzen - ähnlich wie die bekannten bananenförmigen Breitstreckwalzen - über ihre Länge keine gleichförmige Breitstreckwirkung. Auch ist die Herstellung der ungleichförmigen Einschnitte kompliziert und somit kostspielig.Furthermore, it is known in spreader rolls (US Pat. No. 4,566,162) to provide helical incisions in the elastomeric covering of the spreader roll which increase in depth or undercut from the center plane of the roll to the outside. This is intended to simulate the known banana shape, but such spreader rolls - similar to the known banana-shaped spreader rolls - do not show a uniform spreading effect over their length. The manufacture of the non-uniform incisions is also complicated and therefore expensive.
Der Erfindung liegt die Aufgabe zugrunde, eine Breitstreckwalze zu schaffen, welche preswert hergestellt werden kann und gleichwohl eine verbesserte Breitstreckwirkung zeigt, insbesondere auch, wenn sehr dünnes und leichtes flexibles Bahnmaterial auszubreiten und breitzustrecken ist.The invention has for its object to provide a spreader roll which can be manufactured press-fit and nevertheless shows an improved spreader effect, in particular also when very thin and light flexible web material is to be spread and spread.
Diese Aufgabe wird erfindungsgemäß mit einer Breitstreckwalze der eingangs genannten Gattung gelöst, welche die Merkmale des kennzeichnenden Teiles des Anspruches 1 aufweist. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved with a spreader roller of the type mentioned, which has the features of the characterizing part of
Bei Verwendung der erfindungsgemäß ausgebildeten Breitstreckwalze wird wirksam vermieden, daß sich Falten oder sonstige Verwerfungen der zulaufenden Materialbahn, die sich stets in Längsrichtung der Materialbahn erstrecken, in die an der Oberfläche des Breitstreckbeleges der Breitstreckwalze befindlichen Einschnitte setzen oder einarbeiten können, denn diese Einschnitte verlaufen nicht in derselben Richtung wie die Laufrichtung der Materialbahn und damit der Falten oder Verwerfungen. Daher ist eine gleichförmige und einwandfreie Breitstreckung der Materialbahn gewährleistet.When using the spreader roll designed according to the invention, it is effectively avoided that folds or other warping of the incoming material web, which always extend in the longitudinal direction of the material web, into the surface of the Set or incorporate spreader slips of the spreader roller, because these incisions do not run in the same direction as the running direction of the material web and thus the folds or warps. Therefore a uniform and perfect spreading of the material web is guaranteed.
Da die Breitstreckwirkung der Walze nicht unwesentlich davon abhängt, wie die durch die schrägen Einschnitte gebildeten elastischen Abschnitte des Breitstreckbelages unter dem Auflagedruck des über die Walze laufenden Bahnmaterials ausweichen, ist bei der erfindungsgemäßen Breitstreckwalze das Breitstrecken auch deshalb verbessert, weil diese ausweichenden Abschnitte nicht in gleichen Radialebenen der Walze liegen, sondern wegen der wendelförmigen Ausbildung der Einschnitte sich beim Drehen der Walze ständig verschieben und dadurch sich die Lage der Kontaktstellen zwischen der auszubreitenden Materialbahn und der Breitstreckwalze im Bereich der Einschnitte ständig ändert. Je nach Wahl des Umschlingungswinkels der über die Breitstreckwalze laufenden Materialbahn wird diese auf der gesamten Breite erfaßt und in Streckrichtung bzw. Ausbreitrichtung bewegt, soweit dies möglich und notwendig ist.Since the spreading effect of the roller depends to a large extent on how the elastic sections of the spreading covering formed by the oblique incisions evade under the contact pressure of the web material running over the roller, spreading is also improved in the spreading roller according to the invention because these diverging sections are not the same Radial planes of the roller lie, but because of the helical design of the incisions constantly shift when the roller rotates and thereby the position of the contact points between the material web to be spread and the spreader roller changes constantly in the area of the incisions. Depending on the choice of the wrap angle of the material web running over the spreader roller, it is detected over the entire width and moved in the direction of stretching or spreading, as far as this is possible and necessary.
In der Zeichnung ist ein Ausführungsbeispiel einer erfindungsgemäßen Breitstreckwalze schematisch dargestellt, und zwar zeigt
- Fig. 1
- eine schaubildliche Ansicht der Breitstreckwalze mit einer über dieselbe zum Ausbreiten laufenden Materialbahn,
- Fig. 2
- eine Draufsicht auf die Breitstreckwalze aus Fig. 1 und
- Fig. 3
- eine Einzelheit gemäß Ausschnitt III aus Fig. 2 in stark vergrößertem Maßstab.
- Fig. 1
- 2 shows a diagrammatic view of the spreader roller with a material web running over it,
- Fig. 2
- a plan view of the spreader roller of Fig. 1 and
- Fig. 3
- a detail according to section III of Fig. 2 in a greatly enlarged scale.
Die in Fig. 1 und 2 in ihrer Gesamtheit gezeigte Breitstreckwalze (1) hat einen unelastischen bis starren zylindrischen Walzenkörper (2), an dessen stirnseitigen Enden als Lagerzapfen dienende Achsstummel (3 und 4) angeordnet sind.The spreader roller (1) shown in its entirety in FIGS. 1 and 2 has an inelastic to rigid cylindrical roller body (2), on the front ends of which serve as journal journals (3 and 4).
Auf dem Außenumfang des Walzenkörpers (2) ist ein mantelförmiger Belag (5) aus elastomerem Material befestigt, der drehfest mit dem Walzenkörper (2) verbunden ist und zum Breitstrecken einer über die Breitstreckwalze (1) laufenden Materialbahn (6) und/oder zum Trennen von in Längsrichtung der Materialbahn auseinandergeschnittenen einzelnen bandartigen oder streifenförmigen Bahnen dient.A jacket-shaped covering (5) made of elastomeric material is fastened on the outer circumference of the roller body (2) and is connected to the roller body (2) in a rotationally fixed manner and for spreading a material web (6) running over the spreader roller (1) and / or for separating of individual band-like or strip-shaped webs cut apart in the longitudinal direction of the material web.
Beideseits der gedachten radialen Mittelebene (7) der Breitstreckwalze (1) ist jeweils ein wendelförmig verlaufender unterschnittener Einschnitt (8 bzw. 9) im elastomeren Belag (5) vorgesehen, wobei jeder Einschnitt (8 bzw. 9) sich aus dem Bereich der radialen Mittellinie (7) bis zum oder zumindest nahe zum entsprechenden Stirnende der Breitstreckwalze (1) erstreckt.On both sides of the imaginary radial median plane (7) of the spreader roller (1) there is a helical undercut incision (8 or 9) in the elastomeric covering (5), each incision (8 or 9) coming from the area of the radial median line (7) to or at least close to the corresponding end of the spreader roller (1).
Wie insbesondere Fig. 3 zeigt, ist jeder schräg unterschnittene wendelförmige Einschnitt (8 bzw. 9) von innen nach außen geneigt, wobei das jeweils innere Ende (10) näher an der Mittelebene (7) der Walze liegt als das äußere offene Ende (11). Dadurch wird zwischen den einzelnen Windungen oder Gängen der jeweiligen unterschnittenen Einschnitte (8 und 9) ein wendelförmiger Steg (12) gebildet, der zum entsprechenden Stirnende der Breitstreckwalze (1) unter dem Anlagedruck der über die Breitstreckwalze laufenden Materialbahn (6) ausweichen kann, wodurch die Breitstreckwirkung oder Trennwirkung der Breitstreckwalze (1) erzielt wird.As shown in FIG. 3 in particular, each obliquely undercut helical incision (8 or 9) is inclined from the inside to the outside, the inner end (10) being closer to the central plane (7) of the roller than the outer open end (11 ). As a result, a helical web (12) is formed between the individual turns or passages of the respective undercut incisions (8 and 9), which can dodge to the corresponding front end of the spreader roller (1) under the contact pressure of the material web (6) running over the spreader roller, as a result of which the spreading effect or separating effect of the spreading roller (1) is achieved.
In Fig. 3 ist der Einschnitt teils mit gerade verlaufenden und teils mit gewölbt verlaufenden Flanken oder Wänden dargestellt um zu zeigen, daß beide Ausführungsformen der Einschnitte denkbar sind. Bei der praktischen Ausführung haben die Einschnitte einer Breitstreckwalze aber durchgehend nur die gerade oder die gewölbte Form.In Fig. 3 the incision is shown partly with straight and partly with curved flanks or walls to show that both embodiments of the incisions are conceivable. In the practical version, the incisions of an spreader roller have only the straight or the curved shape throughout.
Während die gegebenenfalls gewölbte vordere Flanke (13) jedes der Einschnitte (8 und 9) scharfkantig in die zylindrische Mantelfläche (14) des Belages (5) übergeht, ist der Übergang (15) des wendelförmigen Steges (12) von der Mantelfläche (14) zur gegebenenfalls ebenfalls gewölbten hinteren Flanke (16) des wendelförmigen Steges abgerundet, wie Fig. 3 zeigt. Dadurch wird vermieden, daß eine scharfe Kante sich in die über die Breitstreckwalze (1) laufende Materialbahn (6) eindrückt, wenn durch Zugspannung und Anlagedruck der Materialbahn (6) die wendelförmigen Stege (12) in Richtung zum jeweiligen Stirnende der Breitstreckwalze (2) ausweichen und dabei weggebogen werden.While the optionally curved front flank (13) of each of the incisions (8 and 9) has a sharp edge in the cylindrical outer surface (14) of the covering (5), the transition (15) of the helical web (12) from the outer surface (14) rounded to the optionally also curved rear flank (16) of the helical web, as shown in FIG. 3. This avoids that a sharp edge is pressed into the material web (6) running over the spreader roller (1) when the helical webs (12) in the direction of the respective front end of the spreader roller (2) due to tension and contact pressure of the material web (6). dodge and be bent away.
In Fig. 3 ist der wendelförmig verlaufende Einschnitt (9) des Belages (5) so dargestellt, daß die einzelnen Windungen desselben zwar geneigt, aber - geradlinig oder gewölbt - parallel nebeneinander - in Achsrichtung der Breitstreckwalze (1) gesehen - angeordnet sind. Es ist aber auch möglich, die Neigung der Einschnitte (8 und 9) so zu wählen, daß die einzelnen Gänge oder Windungen derselben einander überlappen, entweder durch die Wahl eines anderen Neigungswinkels der betreffenden Einschnitte (8 und 9) und/oder die Wahl der Breite der zwischen den Einschnitten stehenbleibenden wendelförmigen Stege (12).In Fig. 3 is the helical incision (9) of the covering (5) shown so that the individual turns of the same are inclined, but - rectilinear or arched - parallel next to each other - as seen in the axial direction of the spreader roller (1). But it is also possible to choose the inclination of the incisions (8 and 9) so that the individual gears or turns of the same overlap each other, either by choosing a different angle of inclination of the incisions (8 and 9) and / or the choice of Width of the helical webs (12) which remain between the incisions.
Im Bereich der radialen Mittelebene (7) enthält der Belag (5) einen umlaufenden radialen Einschnitt (18), der praktisch keine Breitstreckwirkung zeigt, sondern sich insofern neutral verhält.In the area of the radial central plane (7), the covering (5) contains a circumferential radial incision (18) which has practically no spreading effect, but rather behaves neutrally.
Die in der Zeichnung dargestellte Breitstreckwalze (1) bewirkt, daß unter Längsspannung bzw. Zugspannung stehendes Bahnmaterial (6), welches über die Breitstreckwalze (1) läuft, wie Fig. 1 zeigt, im Bereich der Walze ausgebreitet und damit geglättet wird, um im zulaufenden Bandmaterial (6) befindliche, in Längsrichtung verlaufende Wellen (17) oder sonstige Verdichtungen, Ausbeulungen, Verwerfungen und dergleichen zu beseitigen, bevor das Bahnmaterial (6) einer weiteren Bearbeitung oder Verwendung zugeführt oder zur Lagerung aufgerollt oder sonstwie abgelegt wird. Zusätzlich ist die Breitstreckwalze auch geeignet, in Längsrichtung in Streifen geschnittenes Bahnmaterial auszubreiten bzw. dessen einzelne Streifen voneinander zu trennen.The spreader roller (1) shown in the drawing causes web material (6) which is under longitudinal tension or tensile stress and which runs over the spreader roller (1), as shown in FIG. 1, to be spread in the region of the roller and thus smoothed in order to to remove incoming band material (6), longitudinal shafts (17) or other densifications, bulges, warping and the like before the web material (6) is further processed or used or rolled up for storage or otherwise deposited. In addition, the spreader roller is also suitable for spreading web material cut into strips in the longitudinal direction or for separating its individual strips from one another.
Die erfindungsgemäße Breitstreckwalze braucht nicht mit einem Antrieb verbunden zu sein, um deren Breitstreckwirkung zu entfalten. Vielmehr kann sie auch frei drehbar oder sogar gebremst gelagert werden.The spreader roller according to the invention does not need to be connected to a drive in order to develop its spreader effect. Rather, it can also be freely rotated or even braked.
Das innere Ende 10 jedes wendelförmigen Einschnittes 8 bzw. 9 ist - wie aus Fig. 3 erkennbar - halbkreisförmig gebogen ausgebildet. Dadurch wird ein besonders gleichförmiges Zurückbiegen der wendelförmigen Stege 12 und damit eine besonders gute Breitstreckwirkung erreicht.The inner end 10 of each
Der in Fig. 2 gezeigte ringförmige Einschnitt 18 kann auch als breitere Eindrehung ausgebildet sein, welche im mittleren Bereich der Breitstreckwalze, in dem sich kein wendelförmiger Einschnitt 8 bzw. 9 befindet, eine hier das Breitstrecken beeinträchtigende oder ganz verhindernde direkte Auflage der breitzustreckenden Materialbahn 6 verhindert. Diese Eindrehung kann beispielsweise den Außendurchmesser der Breitstreckwalze in ihrem Bereich um 0,6 mm verringern, um die gewünschte Wirksamkeit zu zeigen.The
Die Breite der im mittleren Bereich der Breitstreckwalze befindlichen Zone, in der sich keine wendelförmigen Einschnitte 8 bzw. 9 befinden und die zum Vermeiden einer mangelhaften Breitstreckung der über sie laufenden Materialbahnen 6 vorzugsweise einen verringerten Durchmesser aufweisen sollte, kann nach einem weiteren Merkmal der Erfindung dadurch verringert werden, daß die die inneren Enden 19 und 20 der jeweiligen wendelförmigen Einschnitte 8 und 9 um 180° gegeneinander versetzt sind und nicht - wie in Fig. 2 gezeigt - nebeneinander liegen.According to a further feature of the invention, the width of the zone located in the central region of the spreader roller, in which there are no
Die Enden 19 und 20 der wendelförmigen Einschnitte 8 und 9 können sich dabei bereits im Bereich der den Außendurchmesser der Breitstreckwalze verringernden Eindrehung oder des Einschnittes 18 befinden.The
Claims (10)
dadurch gekennzeichnet,
daß die beidseits der radialen Mittelebene (7) der Walze (1) vorgesehenen Einschnitte (8, 9) in Form je einer von der Mittelebene (7) zum jeweils äußeren Ende der Walze verlaufenden unterschnittenen gleichförmigen Wendel ausgebildet sind.Spreader roller for spreading running flexible web material, with a rigid roller body (2) having an end journal (3, 4) and with a jacket-shaped covering (5) made of elastomeric material arranged on the roller body, the elastomeric covering starting from its outer surface (14) contains incisions (8, 9) which are inclined to the longitudinal axis of the roller body and which are inclined on both sides of the radial central plane (7) of the roller from the inside to the relevant end of the roller,
characterized by
that the incisions (8, 9) provided on both sides of the radial central plane (7) of the roller (1) are each in the form of an undercut uniform spiral extending from the central plane (7) to the outer end of the roller.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29522340U DE29522340U1 (en) | 1994-09-23 | 1995-06-14 | Spreader roll |
| DE29522011U DE29522011U1 (en) | 1994-09-23 | 1995-06-14 | Spreader roller |
| DE29522327U DE29522327U1 (en) | 1994-09-23 | 1995-06-14 | Spreader roller |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9415394U DE9415394U1 (en) | 1994-09-23 | 1994-09-23 | Spreader roller |
| DE9415394U | 1994-09-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0703176A1 true EP0703176A1 (en) | 1996-03-27 |
| EP0703176B1 EP0703176B1 (en) | 1999-11-10 |
Family
ID=6914043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95109165A Revoked EP0703176B1 (en) | 1994-09-23 | 1995-06-14 | Spreading roller |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0703176B1 (en) |
| AT (1) | ATE186519T1 (en) |
| DE (2) | DE9415394U1 (en) |
| DK (1) | DK0703176T3 (en) |
| ES (1) | ES2141282T3 (en) |
| PT (1) | PT703176E (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0808710A2 (en) * | 1996-05-24 | 1997-11-26 | Scapa Group Plc | Roller apparatus |
| DE19857123C1 (en) * | 1998-12-11 | 2000-05-31 | Lueraflex Gmbh G Lueckenotto | Web spreader roller has cladding with camber from center plane decreasing in rounded taper to roller ends with structured cuts in cladding |
| DE19906694A1 (en) * | 1999-02-18 | 2000-08-31 | Lueraflex Gmbh G Lueckenotto | Spreader roller for web materials has a cladding with a center zone of a smaller diameter than the flanking zones to give the roller a consistent cylinder shape when under pressure to polish and spread the webs |
| EP1209109A2 (en) * | 2000-11-18 | 2002-05-29 | von Bronk Gummi- und Kunststofftechnik GmbH | Spreading roller |
| DE10135124A1 (en) * | 2001-07-19 | 2003-02-06 | Lueraflex Gmbh G Lueckenotto | Roll for guiding textiles, film or paper has carrier shaft and deformable covering located on shaft in rotationally symmetrical arrangement |
| DE10206568A1 (en) * | 2002-02-18 | 2003-09-04 | Lueraflex Gmbh G Lueckenotto | Roller for guiding sheet material |
| DE10151623C2 (en) * | 2001-10-24 | 2003-12-24 | Lueraflex Gmbh G Lueckenotto | Roller for guiding sheet material |
| DE10313748B4 (en) * | 2003-03-27 | 2007-02-22 | LÜRAFLEX GmbH Gerhard Lückenotto | Roller for guiding sheet material |
| WO2010040665A1 (en) * | 2008-10-08 | 2010-04-15 | Karl-Heinz Schneiders | Roller having roughened surface |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756941A (en) * | 2012-07-11 | 2012-10-31 | 吴江市新申铝业科技发展有限公司 | Threaded roller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2594846A (en) * | 1946-02-16 | 1952-04-29 | Bechter Hermann | Means for stretching the cloth web in weft direction in looms |
| DE2630335A1 (en) * | 1976-07-06 | 1978-01-12 | Boettcher Fa Felix | Width holding and weft straightening roller - ensures efficient driving and stability of synthetic screen in paper machine |
| DE9319042U1 (en) * | 1993-12-11 | 1994-02-24 | Babcock Textilmasch | Spreader roller |
-
1994
- 1994-09-23 DE DE9415394U patent/DE9415394U1/en not_active Expired - Lifetime
-
1995
- 1995-06-14 EP EP95109165A patent/EP0703176B1/en not_active Revoked
- 1995-06-14 DK DK95109165T patent/DK0703176T3/en active
- 1995-06-14 AT AT95109165T patent/ATE186519T1/en not_active IP Right Cessation
- 1995-06-14 DE DE59507214T patent/DE59507214D1/en not_active Revoked
- 1995-06-14 ES ES95109165T patent/ES2141282T3/en not_active Expired - Lifetime
- 1995-06-14 PT PT95109165T patent/PT703176E/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2594846A (en) * | 1946-02-16 | 1952-04-29 | Bechter Hermann | Means for stretching the cloth web in weft direction in looms |
| DE2630335A1 (en) * | 1976-07-06 | 1978-01-12 | Boettcher Fa Felix | Width holding and weft straightening roller - ensures efficient driving and stability of synthetic screen in paper machine |
| DE9319042U1 (en) * | 1993-12-11 | 1994-02-24 | Babcock Textilmasch | Spreader roller |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0808710A3 (en) * | 1996-05-24 | 1997-12-17 | Scapa Group Plc | Roller apparatus |
| EP0808710A2 (en) * | 1996-05-24 | 1997-11-26 | Scapa Group Plc | Roller apparatus |
| DE19857123C1 (en) * | 1998-12-11 | 2000-05-31 | Lueraflex Gmbh G Lueckenotto | Web spreader roller has cladding with camber from center plane decreasing in rounded taper to roller ends with structured cuts in cladding |
| BE1014898A5 (en) * | 1999-02-18 | 2004-06-01 | Luraflex Gmbh Gerhard Lueckeno | STakEouT WALS. |
| DE19906694A1 (en) * | 1999-02-18 | 2000-08-31 | Lueraflex Gmbh G Lueckenotto | Spreader roller for web materials has a cladding with a center zone of a smaller diameter than the flanking zones to give the roller a consistent cylinder shape when under pressure to polish and spread the webs |
| DE19906694C2 (en) * | 1999-02-18 | 2002-04-11 | Lueraflex Gmbh G Lueckenotto | Spreader roll |
| EP1209109A2 (en) * | 2000-11-18 | 2002-05-29 | von Bronk Gummi- und Kunststofftechnik GmbH | Spreading roller |
| EP1209109A3 (en) * | 2000-11-18 | 2004-06-02 | von Bronk Gummi- und Kunststofftechnik GmbH | Spreading roller |
| DE10135124A1 (en) * | 2001-07-19 | 2003-02-06 | Lueraflex Gmbh G Lueckenotto | Roll for guiding textiles, film or paper has carrier shaft and deformable covering located on shaft in rotationally symmetrical arrangement |
| DE10135124B4 (en) * | 2001-07-19 | 2004-03-11 | LÜRAFLEX GmbH Gerhard Lückenotto | Roller for guiding sheet material |
| DE10151623C2 (en) * | 2001-10-24 | 2003-12-24 | Lueraflex Gmbh G Lueckenotto | Roller for guiding sheet material |
| DE10206568B4 (en) * | 2002-02-18 | 2004-01-08 | LÜRAFLEX GmbH Gerhard Lückenotto | Roller for guiding sheet material |
| DE10206568A1 (en) * | 2002-02-18 | 2003-09-04 | Lueraflex Gmbh G Lueckenotto | Roller for guiding sheet material |
| DE10313748B4 (en) * | 2003-03-27 | 2007-02-22 | LÜRAFLEX GmbH Gerhard Lückenotto | Roller for guiding sheet material |
| WO2010040665A1 (en) * | 2008-10-08 | 2010-04-15 | Karl-Heinz Schneiders | Roller having roughened surface |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE186519T1 (en) | 1999-11-15 |
| DE59507214D1 (en) | 1999-12-16 |
| EP0703176B1 (en) | 1999-11-10 |
| PT703176E (en) | 2000-04-28 |
| ES2141282T3 (en) | 2000-03-16 |
| DK0703176T3 (en) | 2000-04-25 |
| DE9415394U1 (en) | 1994-11-24 |
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