EP0703176B1 - Spreading roller - Google Patents
Spreading roller Download PDFInfo
- Publication number
- EP0703176B1 EP0703176B1 EP95109165A EP95109165A EP0703176B1 EP 0703176 B1 EP0703176 B1 EP 0703176B1 EP 95109165 A EP95109165 A EP 95109165A EP 95109165 A EP95109165 A EP 95109165A EP 0703176 B1 EP0703176 B1 EP 0703176B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- spreading
- recesses
- helical
- central plane
- 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.)
- Revoked
Links
- 238000003892 spreading Methods 0.000 title claims description 26
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 abstract description 2
- 239000000806 elastomer Substances 0.000 abstract description 2
- 239000004753 textile Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 241000234295 Musa Species 0.000 description 2
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
-
- 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 the characteristics of the generic term of claim 1.
- Spreader rolls are used to feed web material which not sufficiently smooth or even and especially with longitudinal folds tends to spread out smoothly 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, distortions and the like remaining in the material not only convey an unattractive appearance, but also to the Mark surfaces of other track sections with which they do not spread or insufficiently spread track sections for example, come into contact when rolling up.
- the invention has for its object to a spreader roll create which press value can be produced and nevertheless one shows improved spreading effect, especially when very to spread thin and light flexible web material and is to be spread.
- the spreader roller designed according to the invention effectively prevents wrinkles or other distortions the incoming material web, which is always in the longitudinal direction of the Extend web of material into the surface of the Spreading document of the incisions located on the spreader roller can put or work in, because these cuts run not in the same direction as the running direction of the material web and hence the wrinkles or warps. Therefore, it is uniform and perfect spreading of the material web guaranteed.
- Spreader roller Since the spreading effect of the roller depends to a large extent on like the elastic formed by the oblique incisions Sections of the spreader covering under the contact pressure of the over the Dodge roller running web material is in the invention
- Spreader roller also improves spreading because it does so avoiding sections in the same radial planes of the roller lie, but because of the helical formation of the incisions shift constantly when the roller rotates and thereby the Location of the contact points between the material web to be spread and the spreader roller changes constantly in the area of the incisions.
- Material web is recorded over the entire width and in Stretching direction or spreading direction moves as far as possible and necessary is.
- the spreader roller (1) shown in its entirety in FIGS. 1 and 2 has an inelastic to rigid cylindrical roller body (2) whose front ends serve as journal journals (3 and 4) are arranged.
- roller body (2) On the outer circumference of the roller body (2) is a jacket-shaped covering (5) made of elastomeric material, which rotates with the Roller body (2) is connected and for spreading one over the Spreader roller (1) running material web (6) and / or for cutting of cut apart in the longitudinal direction of the material web individual ribbon-like or strip-shaped webs is used.
- a jacket-shaped covering (5) made of elastomeric material, which rotates with the Roller body (2) is connected and for spreading one over the Spreader roller (1) running material web (6) and / or for cutting of cut apart in the longitudinal direction of the material web individual ribbon-like or strip-shaped webs is used.
- each Incision (8 or 9) from the area of the radial center line (7) up to or at least close to the corresponding end of the Spreader roller (1) extends.
- each is obliquely undercut helical incision (8 or 9) inclined from the inside to the outside, whereby the inner end (10) closer to the central plane (7) of the roller lies as the outer open end (11).
- This will distinguish between the individual turns or passages of the respective undercut Incisions (8 and 9) formed a helical web (12) leading to corresponding end of the spreader roller (1) under the system pressure avoid the material web (6) running over the spreader roller can, causing the spreading or separating effect of Spreader roller (1) is achieved.
- Fig. 3 the incision is partly straight and partly shown with curved flanks or walls to show that both embodiments of the incisions are conceivable.
- the cuts of a spreader roller have a practical design but only the curved shape throughout.
- Fig. 3 is the helical incision (9) of the covering (5) shown so that the individual turns of the same are inclined, but - straight or curved - parallel next to each other - in Axial direction of the spreader roller (1) seen - are arranged. It is but also possible to choose the inclination of the incisions (8 and 9) so that the individual gears or turns overlap one another, either by choosing a different angle of inclination of the concerned Incisions (8 and 9) and / or the choice of width between the Incisions remain standing helical webs (12).
- the covering (5) contains one in the area of the radial central plane (7) circumferential radial incision (18), which is practically none Shows spreading effect, but behaves neutrally.
- the spreader roller (1) shown in the drawing causes web material (6) under longitudinal tension or tension, which runs over the spreader roller (1), as shown in Fig. 1, in Spread the area of the roller and thus smoothed to in incoming strip material (6) located in the longitudinal direction Waves (17) or other densifications, bulges, faults and Eliminate the like before the web material (6) another Processing or use fed or rolled up for storage or otherwise it is filed.
- the spreader roller is also suitable, material cut into strips in the longitudinal direction spread out or separate its individual strips from each other.
- the spreader roller according to the invention does not need a drive to be connected in order to develop their spreading effect. Much more it can also be freely rotated or even braked.
- each helical incision 8 or 9 is - 3 - semicircularly curved. This results in a particularly uniform bending back of the helical webs 12 and thus a particularly good one Spreading effect achieved.
- the annular incision 18 shown in Fig. 2 can also as wider indentation can be formed, which in the central region of the Spreader roller in which there is no helical incision 8 or 9 is one that affects the long distance or completely Preventing the wide web of material 6 from spreading directly prevented.
- This screwing can, for example, the outer diameter the spreader roller in their area by 0.6 mm to reduce the to show desired effectiveness.
- the width of those in the middle of the spreader roller Zone in which there are no helical incisions 8 or 9 and those to avoid poor spreading of them running material webs 6 preferably a reduced Should have diameter, can according to another characteristic of Invention can be reduced in that the inner ends 19 and 20 of the respective helical incisions 8 and 9 by 180 ° are offset against each other and not - as shown in Fig. 2 - lie side by side.
- the ends 19 and 20 of the helical cuts 8 and 9 can already in the area of the outer diameter of the Spreader roller reducing indentation or incision 18 are located.
Landscapes
- Textile Engineering (AREA)
- Engineering & Computer Science (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Treatment Of Fiber Materials (AREA)
- Lifting Devices For Agricultural Implements (AREA)
- Harvester Elements (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Manufacture Of Motors, Generators (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Dry Shavers And Clippers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
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 the characteristics of the generic term of claim 1.
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 rolls are used to feed web material which not sufficiently smooth or even and especially with longitudinal folds tends to spread out smoothly 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, distortions and the like remaining in the material not only convey an unattractive appearance, but also to the Mark surfaces of other track sections with which they do not spread or insufficiently spread track sections for example, come into contact 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 spreader rolls were used Banana rollers, which have an outwardly or convex surface exhibit. Such spreader rolls, however, have not proven to be proven satisfactory, so that a spreader roller is proposed in which the roller covering consists of several on the supporting axis of the roller attached sleeve pieces. The form on the outer circumference Protrusions with grooves V-shaped cross-section in the manner of a sawtooth profile (state of the art for DE-U-85 06 704.0). However, this known spreader roller is complicated in structure 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 another known spreader roll of the type mentioned Genus (DE-U-85 06 704.0) is the one arranged on the roller body jacket-shaped covering in one piece from elastomeric material and contains from its cylindrical outer surface outgoing to the longitudinal axis of the Rolled body oblique or inclined annular cuts, the inclination viewed from the center of the roller in each case runs from the inside to the outside in the relevant roller ends. Since the open ends of the incisions ring-shaped in the spreader covering are arranged, they run in the direction of movement of the wide-spread railway material. Therefore, there is a risk that the material web running over the spreader roller into the Cuts or dodges incisions, especially if that Web material is particularly thin and flexible and if folds or other warpage of the web material, which is always more or less run in the longitudinal direction of the material web, in the area of a or more of these incisions, so that only one insufficient width 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-A-4 566 162), in elastomeric covering of the spreader roller helical incisions to be provided from the median plane of the roller outwards in its Increase depth or undercut. This is said to be the previously known Banana shape can be simulated, but show such Spreader rollers - similar to the well-known banana-shaped ones Spreader rolls - not uniform over their length Spreading effect. Also the manufacture of the non-uniform Incisions are complicated and therefore expensive.
Schließlich ist es bei Breitstreckwalzen auch bekannt (DE-A-26 30 335), im elastomeren Belag von der Symmetrieachse der Walze ausgehende, gegenläufige, jeweils nach außen führende ein- oder mehrgängige Gewindeeinschnitte vorzusehen. Zwischen den einzelnen Gängen dieser Gewindeeinschnitte sind Stege vorhanden welche die Walzenoberfläche bilden und breiter als die Breite der Einschnitte sind. Eine derartige Breitstreckwalze soll beispielsweise als Siebumkehrwalze verwendet werden können. Finally, it is also known in spreader rolls (DE-A-26 30 335), in the elastomer Covering from the axis of symmetry of the roller, counter-rotating, each to the outside to provide leading single or multi-start thread cuts. Between each Aisles of these thread cuts have webs which cover the roller surface form and are wider than the width of the incisions. Such an spreader roller is said to can be used for example as a screen reversing roller.
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 a spreader roll create which press value can be produced and nevertheless one shows improved spreading effect, especially when very to spread thin and light flexible web material and is to be 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 an spreader roller solved type mentioned above, which the characteristics of characterizing part of claim 1. Beneficial Embodiments of the invention are the subject of the dependent claims.
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 roller designed according to the invention effectively prevents wrinkles or other distortions the incoming material web, which is always in the longitudinal direction of the Extend web of material into the surface of the Spreading document of the incisions located on the spreader roller can put or work in, because these cuts run not in the same direction as the running direction of the material web and hence the wrinkles or warps. Therefore, it is uniform and perfect spreading of the material web 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 like the elastic formed by the oblique incisions Sections of the spreader covering under the contact pressure of the over the Dodge roller running web material is in the invention Spreader roller also improves spreading because it does so avoiding sections in the same radial planes of the roller lie, but because of the helical formation of the incisions shift constantly when the roller rotates and thereby the Location 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 Choice of the wrap angle of those running over the spreader roller Material web is recorded over the entire width and in Stretching direction or spreading direction moves as far as possible and necessary is.
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) whose front ends serve as journal journals (3 and 4) are arranged.
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. On the outer circumference of the roller body (2) is a jacket-shaped covering (5) made of elastomeric material, which rotates with the Roller body (2) is connected and for spreading one over the Spreader roller (1) running material web (6) and / or for cutting of cut apart in the longitudinal direction of the material web individual ribbon-like or strip-shaped webs is used.
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 central plane (7) of the spreader roller (1) is a helical undercut Incision (8 or 9) provided in the elastomeric covering (5), each Incision (8 or 9) from the area of the radial center line (7) up to or at least close to the corresponding end of the Spreader roller (1) extends.
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 particularly shown in Fig. 3, each is obliquely undercut helical incision (8 or 9) inclined from the inside to the outside, whereby the inner end (10) closer to the central plane (7) of the roller lies as the outer open end (11). This will distinguish between the individual turns or passages of the respective undercut Incisions (8 and 9) formed a helical web (12) leading to corresponding end of the spreader roller (1) under the system pressure avoid the material web (6) running over the spreader roller can, causing the spreading or separating effect of Spreader 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 gewölbte Form. In Fig. 3 the incision is partly straight and partly shown with curved flanks or walls to show that both embodiments of the incisions are conceivable. In the the cuts of a spreader roller have a practical design but only the curved shape throughout.
Während die 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 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 curved front flank (13) each of the Incisions (8 and 9) with sharp edges in the cylindrical surface (14) of the covering (5) passes, the transition (15) of the helical Web (12) from the lateral surface (14) to also rounded rear flank (16) of the helical web is rounded, 3 shows. This avoids a sharp edge into the material web (6) running over the spreader roller (1) presses in when the material web (6) is subjected to tension and contact pressure the helical webs (12) towards the respective front end of the Dodge spreader roller (2) and bend 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 - straight or curved - parallel next to each other - in Axial direction of the spreader roller (1) seen - are arranged. It is but also possible to choose the inclination of the incisions (8 and 9) so that the individual gears or turns overlap one another, either by choosing a different angle of inclination of the concerned Incisions (8 and 9) and / or the choice of width between the Incisions remain standing helical webs (12).
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. The covering (5) contains one in the area of the radial central plane (7) circumferential radial incision (18), which is practically none Shows spreading effect, but 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) under longitudinal tension or tension, which runs over the spreader roller (1), as shown in Fig. 1, in Spread the area of the roller and thus smoothed to in incoming strip material (6) located in the longitudinal direction Waves (17) or other densifications, bulges, faults and Eliminate the like before the web material (6) another Processing or use fed or rolled up for storage or otherwise it is filed. In addition, the spreader roller is also suitable, material cut into strips in the longitudinal direction spread out or separate its individual strips from each other.
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 a drive to be connected in order to develop their spreading effect. Much more 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 helical incision 8 or 9 is - 3 - semicircularly curved. This results in a particularly uniform bending back of the helical webs 12 and thus a particularly good one Spreading effect achieved.
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 annular incision 18 shown in Fig. 2 can also as wider indentation can be formed, which in the central region of the Spreader roller in which there is no helical incision 8 or 9 is one that affects the long distance or completely Preventing the wide web of material 6 from spreading directly prevented. This screwing can, for example, the outer diameter the spreader roller in their area by 0.6 mm to reduce the to show desired effectiveness.
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. The width of those in the middle of the spreader roller Zone in which there are no helical incisions 8 or 9 and those to avoid poor spreading of them running material webs 6 preferably a reduced Should have diameter, can according to another characteristic of Invention can be reduced in that the inner ends 19 and 20 of the respective helical incisions 8 and 9 by 180 ° are offset against each other and not - as shown in Fig. 2 - lie side by side.
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 ends 19 and 20 of the helical cuts 8 and 9 can already in the area of the outer diameter of the Spreader roller reducing indentation or incision 18 are located.
Claims (8)
- Spreading roller (1) for spreading out moving flexible strip material, with a rigid roller body (2) having bearing spindles (3, 4) at its ends and with a covering layer (5) of elastomeric material arranged on the roller body, the elastomeric layer containing recesses (8, 9) extending from its surface (14) and extending at an inclination to the longitudinal axis of the roller body, the recesses being inclined from inside to outside on both sides of the radial central plane (7) of the roller (1) respectively towards the associated end of the roller,
characterised in that
the recesses (8, 9) provided on each side of the radial central plane (7) of the roller (1) are each formed as an undercut uniform helix extending from the central plane (7) towards the respective outer end of the roller, the helical recesses (8, 9) having bulged parallel flanks (13, 16) and the outer edges (15) facing towards the radial central plane (7) of the roller (1) of each of the webs or lands (12) present between the threads or turns of the undercut helical recesses (8, 9) being rounded off or chamfered. - Spreading roller according to claim 1, characterised in that the outer edges (15) of the webs or lands (12) of the elastomeric layer (5) are rounded off or chamfered on both sides of the recesses (8, 9).
- Spreading roller according to claim 1 or 2, characterised in that its surface is made inwardly or outwardly bulged.
- Spreading roller according to claim 1 or 2, characterised in that it contains a radial recess (18) in the region of its central plane (7).
- Spreading roller according to claim 4, characterised in that the radial recess (18) reduces the outside diameter of the roller by 0.6 mm.
- Spreading roller according to one of claims 1 to 5, characterised in that the helical recesses (8, 9) have an inner end (10) of semi-circular rounded shape.
- Spreading roller according to one of claims 1 to 6, characterised in that the inner ends (19, 20) of the helical recesses (8, 9) are arranged angularly offset from one another.
- Spreading roller according to claim 7, characterised in that the inner ends (19, 20) of the helical recesses (8, 9) are arranged offset from one another by 180°.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29522340U DE29522340U1 (en) | 1994-09-23 | 1995-06-14 | Spreader roll |
DE29522327U DE29522327U1 (en) | 1994-09-23 | 1995-06-14 | Spreader roller |
DE29522011U DE29522011U1 (en) | 1994-09-23 | 1995-06-14 | Spreader roller |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9415394U | 1994-09-23 | ||
DE9415394U DE9415394U1 (en) | 1994-09-23 | 1994-09-23 | Spreader roller |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0703176A1 EP0703176A1 (en) | 1996-03-27 |
EP0703176B1 true 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) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5794758A (en) * | 1996-05-24 | 1998-08-18 | 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 |
DE19906694C2 (en) * | 1999-02-18 | 2002-04-11 | Lueraflex Gmbh G Lueckenotto | Spreader roll |
DE20019598U1 (en) * | 2000-11-18 | 2001-03-01 | von Bronk Gummi- und Kunststofftechnik GmbH, 48653 Coesfeld | Spreader roller |
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 |
DE10313748B4 (en) * | 2003-03-27 | 2007-02-22 | LÜRAFLEX GmbH Gerhard Lückenotto | Roller for guiding sheet material |
DE102008042690A1 (en) * | 2008-10-08 | 2010-04-15 | Michael Podlesny | Spreader roll with roughened, helical surface |
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 |
Family Cites Families (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 |
DE2630335B2 (en) * | 1976-07-06 | 1978-10-05 | Felix Boettcher Gmbh & Co, 5000 Koeln | Spreader roller |
DE9319042U1 (en) * | 1993-12-11 | 1994-02-24 | Babcock Textilmaschinen GmbH, 21220 Seevetal | 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 ES ES95109165T patent/ES2141282T3/en not_active Expired - Lifetime
- 1995-06-14 PT PT95109165T patent/PT703176E/en unknown
- 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 DK DK95109165T patent/DK0703176T3/en active
Also Published As
Publication number | Publication date |
---|---|
DE9415394U1 (en) | 1994-11-24 |
EP0703176A1 (en) | 1996-03-27 |
ES2141282T3 (en) | 2000-03-16 |
DK0703176T3 (en) | 2000-04-25 |
PT703176E (en) | 2000-04-28 |
DE59507214D1 (en) | 1999-12-16 |
ATE186519T1 (en) | 1999-11-15 |
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