EP0729911A2 - Metallic winding core - Google Patents
Metallic winding core Download PDFInfo
- Publication number
- EP0729911A2 EP0729911A2 EP96103133A EP96103133A EP0729911A2 EP 0729911 A2 EP0729911 A2 EP 0729911A2 EP 96103133 A EP96103133 A EP 96103133A EP 96103133 A EP96103133 A EP 96103133A EP 0729911 A2 EP0729911 A2 EP 0729911A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- winding
- corrugated
- heads
- shafts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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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
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/50—Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials
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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
- B65H2701/00—Handled material; Storage means
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/51—Cores or reels characterised by the material
- B65H2701/511—Cores or reels characterised by the material essentially made of sheet material
- B65H2701/5114—Metal sheets
Definitions
- the invention relates to a winding tube made of metal for winding tapes, foils or sheets of plastic, paper, metal or the like and a method for producing such a winding tube.
- winding cores or winding cores made of cardboard, plastic or metal, in particular aluminum are known.
- the cardboard cores which are used particularly frequently and can usually only be used once, but can also be used several times, are relatively heavy and cause problems when disposing of them. Since these sleeves, like the sleeves made of plastic and metal, must have a high wall strength and bending strength under radial loading, they usually consist of many layers of transversely and / or overlapping wound and glued together Kraft paper webs.
- these tubes dissolve only with difficulty when recycling, so that the recycling process takes an undesirably long time and is expensive. But also when they are deposited in landfills, such sleeves, which are usually used only once, cause problems, since they rot only with great difficulty and can hardly be compressed to small dimensions because of their wall and bending rigidity.
- the invention is therefore based on the object of providing a winding tube which is relatively light-weight, has a very high radial strength and bending stiffness and is easily recyclable.
- the winding tube consists of a metal corrugated tube, which is preferably formed from a helically wound, longitudinally corrugated or longitudinally ribbed tape, the adjacent tape rolls overlapping at least at their edges. It is advantageous that the corrugated tube is wound in such a way that the tape rolls overlap at least half of their bandwidth and thus form an at least two-layer tube wall.
- the tape wraps should overlap by 2/3, 3/4 or more of their width and thus form a three-layer, four-layer or multi-layer tube wall.
- longitudinally corrugated or longitudinally ribbed is understood to mean that the longitudinal extension of the wave apex or the ribs runs in the longitudinal direction of the band.
- the winding tube In the case of thin strips or foils in particular, it is desirable for the winding tube to have a smooth, uninterrupted outer surface.
- the winding tube should have flat shaft heads on the outside of the tube. It is particularly useful if the waves of the tube in the Cross-section are rectangular or trapezoidal and thus have flat or almost flat heads located on the outside of the pipe. Furthermore, it is expedient that the shaft heads located on the outside of the tube are wider than the shaft feet located on the inside, and they can abut or almost abut with their widened shaft heads. This design gives the sleeve an essentially uninterrupted smooth outer surface. To increase the bending stiffness, the abutting shaft heads can be welded, soldered or glued together.
- a cover layer made of a film (the same material as the sleeve) can also be glued, sealed or otherwise attached to the inside or outside of the pipe.
- the smooth outer surface has proven to be advantageous when winding very thin foils to avoid wrinkles in the winding.
- a cover layer on the inside increases the stability of the winding tube.
- the winding tube can be made of foils or strips of metal, such as aluminum, steel or copper. It can be advantageous here if the material of the winding tube is the same as that of the film or tape to be wound. In this case, the ends of the tape or film wound on the sleeve, which may remain on the winding tube, can be recycled together with the winding tube.
- the winding tube according to the invention possibly even together with coil or winding remnants on it, the further advantage of a relatively low weight with a bending stiffness corresponding to the cardboard cores hitherto customary, it being simple and cheap to manufacture.
- this winding tube can be pressed together despite its high bending stiffness, for example for transport to the recycling plant, and can be transported in a space-saving manner.
- the manufacture of such a winding tube can be carried out according to the invention by first producing a tube with ribbon coils overlapping at its edges by helically winding a longitudinally corrugated or longitudinally ribbed metal strip, and then by applying a radial pressure on these heads to the shaft heads located on the outside of the tube flattened and widened at the same time.
- the tube can be compressed in the axial direction in such a way that the gaps between these heads are further reduced or closed.
- the abutting shaft heads can then be firmly connected to one another by welding, soldering, gluing or the like.
- Corrugated tubes with ribbon coils overlapping at their edges, even those with flattened, outer corrugation apices, are already known (EP 0 048 306 + OE-326 965).
- these known corrugated tubes serve as conduits for the conduction of primarily gaseous media, such as tubes in ventilation and air conditioning systems or the like, but not for the production of winding sleeves for winding tapes, Foils or sheets of plastic, paper, metal or the like.
- the invention can therefore also be seen in the use of sections of these known, wound corrugated tubes as winding sleeves for winding tapes, foils or sheets made of plastic, paper, metal or the like.
- These corrugated pipe sections can then be provided with flattened and / or by axially upsetting shaft heads which are brought closer to one another in accordance with the above-described method.
- corrugated pipes are also known as conduit pipes which are not produced by winding a longitudinally corrugated strip, but rather by extrusion, blow molding or upsetting rolls (for example EP 0 474 449 A2). Due to their corrugation, that is to say due to the different thickness of the wall structure in the longitudinal section of the pipe, these pipes can be given a very high degree of flexibility combined with a high radial pressure resistance, so that they can be used to produce pipe bends, as is often necessary with pressure-resistant pipes.
- the shafts of the above-mentioned corrugated tube not produced by winding can have a triangular cross-section and flat-pressed outer and inner shaft heads, whereby they can abut with the corresponding heads of the adjacent shafts. This should give the pipe as smooth an internal surface as possible, despite its great flexibility, which is highly desirable for a turbulence-free flow in the pipe.
- the tube wall of the winding tube has a honeycomb or parcel-like structure, the triangular honeycombs being formed by waves or ribs of a corrugated tube compressed in the tube axis direction on their outer and inner heads 1, 2.
- the flanks 3 of the shafts are essentially rectilinear in longitudinal section through the tube, so that the honeycombs have an approximately triangular cross-section with a tip pointing inwards, and pointing outwards.
- the honeycomb-forming, flat-pressed and compressed shafts or ribs abut one another with their inner and outer heads 1, 2 widened by the flat pressing and can be fastened to one another at their mutually abutting edges by welding, soldering or gluing.
- a cover layer 19 is provided on the outside of the winding tube.
- a longitudinally corrugated or smooth band, approximately rectangular in cross section, is used to produce this winding tube, which is wound in a winding device in a helical manner to form a corrugated tube (FIG. 3) or finned tube (FIG. 4).
- the winding pitch is such that two successive tape windings 4 overlap by about half their bandwidth (FIG. 5), so that the tube has two superposed tape layers 5, 6 along its wall over its entire length.
- the fins shown in cross section in FIG. 9 already have flat outer and inner heads 1, 2, so that this tube only has to be compressed in the axial direction in order to obtain the abutment of the finned heads shown in FIG. 10.
- the device shown schematically in FIG. 11 can be used to produce the winding tube.
- the metal strip 8 drawn off from a coil 7 is passed through pairs of guide and shaping rollers 9, which give the strip its desired longitudinal corrugation according to FIGS. 6 and 9.
- the thus longitudinally corrugated band 10 then runs into a winding device which, in the example shown in FIG. 11, is formed by a winding mandrel 12 rotatable about its axis 11 and guide and winding rollers 13, 14 arranged on the periphery of this winding mandrel.
- Mandrel 12 and rollers 13, 14 can have a profile corresponding to the longitudinal corrugation or longitudinal ribbing of the belt.
- the tape is wound helically around the mandrel 12, the waves or ribs of the adjacent tape rolls formed in the process overlapping one another in the region of the overlap.
- the nested waves of two adjacent band windings can, at the moment when they pass between the mandrel 12 and the first guide roller 13, from this mandrel and the roller mentioned which are used for flattening and Experiencing widening of their shaft heads serving radial pressurization, whereby they get the approximately dovetail-shaped cross-sectional shape shown in Fig. 7.
- the flattened shaft heads can then be brought into abutment by compressing the tube in the axial direction and then firmly connected to one another by welding, soldering, gluing or the like, or further deformed by radial pressure until the shaft heads meet.
- FIG. 12 shows a winding device which has two inlet and connecting rollers 15, 16 lying opposite one another, between which the previously longitudinally corrugated or longitudinally ribbed belt 10 runs. Subsequently, this band is given a bend by a bending roller 17, whereby the band is formed into a tube by further guidance by guide rollers 18.
- the flat pressing and widening of the outer and inner shaft heads 1, 2 is carried out by pressure rollers 15 ', 16', i.e. between two rollers which are arranged at a point following the entry point into the winding device.
- pressure rollers 15 ', 16' i.e. between two rollers which are arranged at a point following the entry point into the winding device.
- it leads to a framework-like stiffening of the pipe wall, whereby the pipe loses its flexibility.
- a light, rigid tube with a double wall stiffened by transverse ribs is obtained, from each of which the length of the desired winding tube can be separated.
Landscapes
- Making Paper Articles (AREA)
- Windings For Motors And Generators (AREA)
- Winding Of Webs (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Buffer Packaging (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Glass Compositions (AREA)
- Laminated Bodies (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
Description
Die Erfindung betrifft eine aus Metall bestehende Wickelhülse zum Aufwickeln von Bändern, Folien oder Blechen aus Kunststoff, Papier, Metall oder dergleichen und ein Verfahren zur Herstellung einer solchen Wickelhülse.The invention relates to a winding tube made of metal for winding tapes, foils or sheets of plastic, paper, metal or the like and a method for producing such a winding tube.
Um lange Folien oder Bänder aus dünnem Kunststoff, Papier oder Metall lagern und transportieren zu können, werden diese auf einen Wickelkern, meist eine Wickelhülse, gewickelt und in diesem aufgewickelten Zustand als Coils oder Bandwickel gehandhabt. Es sind Wickelkerne oder Wickelhülsen aus Pappe, Kunststoff oder Metall, insbesondere Aluminium, bekannt. Gerade die besonders häufig verwendeten Pappkerne, die meist nur einmal, mitunter aber auch mehrmals verwendet werden können, sind relativ schwer und machen bei der Entsorgung Probleme. Da diese Hülsen ebenso wie die aus Kunststoff und Metall bestehenden Hülsen bei radialer Belastung eine hohe Wandfestigkeit und Biegefestigkeit aufweisen müssen, bestehen sie üblicherweise aus vielen Lagen von quer und/oder überlappend gewickelten und miteinander verleimten Kraftpapierbahnen. Beim Recyceln lösen sich diese Hülsen daher nur schwer auf, so daß der Recyclingprozeß unerwünscht lange dauert und kostspielig ist. Aber auch bei der Ablagerung auf Deponien bringen derartige, meist nur einmal verwendete Hülsen Probleme, da sie nur sehr schwer verrotten und wegen ihrer Wand- und Biegesteifigkeit kaum auf geringe Abmessungen zusammendrückbar sind.In order to be able to store and transport long foils or tapes made of thin plastic, paper or metal, they are wound on a winding core, usually a winding tube, and handled in this wound state as coils or tape windings. Winding cores or winding cores made of cardboard, plastic or metal, in particular aluminum, are known. The cardboard cores, which are used particularly frequently and can usually only be used once, but can also be used several times, are relatively heavy and cause problems when disposing of them. Since these sleeves, like the sleeves made of plastic and metal, must have a high wall strength and bending strength under radial loading, they usually consist of many layers of transversely and / or overlapping wound and glued together Kraft paper webs. Therefore, these tubes dissolve only with difficulty when recycling, so that the recycling process takes an undesirably long time and is expensive. But also when they are deposited in landfills, such sleeves, which are usually used only once, cause problems, since they rot only with great difficulty and can hardly be compressed to small dimensions because of their wall and bending rigidity.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Wickelhülse zu schaffen, die relativ leichtgewichtig ist, eine sehr hohe radiale Festigkeit und Biegesteifigkeit aufweist und leicht recycelbar ist. Dies wird erfindungsgemäß dadurch erreicht, daß die Wickelhülse aus einem metallenen Wellrohr besteht, das vorzugsweise aus einem wendelförmig gewickelten, längsgewellten oder längsgerippten Band gebildet ist, wobei die benachbarten Bandwickel zumindest an ihren Rändern sich überlappen. Dabei ist es vorteilhaft, daß das Wellrohr derart gewickelt ist, daß die Bandwickel sich zumindest um die Hälfte ihrer Bandbreite überlappen und damit eine mindestens zweilagige Rohrwand bilden. Wenn eine besonders wand- und biegesteife Wickelhülse gewünscht wird, sollten sich die Bandwickel um 2/3, 3/4 oder mehr ihrer Bandbreite überlappen und damit eine dreilagige, vierlagige oder noch mehrlagige Rohrwand bilden. Hierbei wird unter längsgewellt bzw. längsgerippt verstanden, daß die Längserstreckung der Wellenscheitel bzw. der Rippen in Längsrichtung des Bandes verläuft.The invention is therefore based on the object of providing a winding tube which is relatively light-weight, has a very high radial strength and bending stiffness and is easily recyclable. This is achieved according to the invention in that the winding tube consists of a metal corrugated tube, which is preferably formed from a helically wound, longitudinally corrugated or longitudinally ribbed tape, the adjacent tape rolls overlapping at least at their edges. It is advantageous that the corrugated tube is wound in such a way that the tape rolls overlap at least half of their bandwidth and thus form an at least two-layer tube wall. If a particularly rigid and rigid winding sleeve is desired, the tape wraps should overlap by 2/3, 3/4 or more of their width and thus form a three-layer, four-layer or multi-layer tube wall. Here, longitudinally corrugated or longitudinally ribbed is understood to mean that the longitudinal extension of the wave apex or the ribs runs in the longitudinal direction of the band.
Insbesondere bei dünnen Bändern oder Folien ist es wünschenswert, daß die Wickelhülse eine möglichst glatte, ununterbrochene Außenfläche hat. Zu diesem Zweck sollte die Wickelhülse an der Rohraußenseite flache Wellenköpfe haben. Besonders zweckmäßig ist es, wenn die Wellen des Rohres im Querschnitt rechteckig oder trapezförmig sind und damit ebene oder nahezu ebene, an der Rohraußenseite befindliche Köpfe haben. Weiterhin ist es zweckmäßig, daß die an der Rohraußenseite befindlichen Wellenköpfe breiter sind als die an der Innenseite befindlichen Wellenfüße, wobei sie mit ihren verbreiterten Wellenköpfen aneinanderstoßen oder nahezu aneinanderstoßen können. Durch diese Ausbildung erhält die Hülse eine im wesentlichen ununterbrochene glatte Außenfläche. Zur Erhöhung der Biegesteifigkeit können die aneinanderstoßenden Wellenköpfe miteinander verschweißt, verlötet oder verklebt sein.In the case of thin strips or foils in particular, it is desirable for the winding tube to have a smooth, uninterrupted outer surface. For this purpose, the winding tube should have flat shaft heads on the outside of the tube. It is particularly useful if the waves of the tube in the Cross-section are rectangular or trapezoidal and thus have flat or almost flat heads located on the outside of the pipe. Furthermore, it is expedient that the shaft heads located on the outside of the tube are wider than the shaft feet located on the inside, and they can abut or almost abut with their widened shaft heads. This design gives the sleeve an essentially uninterrupted smooth outer surface. To increase the bending stiffness, the abutting shaft heads can be welded, soldered or glued together.
Um eine glatte Außenfläche zu erhalten und/oder auch um eine hohe Biegesteifigkeit durch Verbinden der Wellenköpfe zu erreichen, kann auch auf der Rohraußen- oder -innenseite eine Deckschicht aus einer Folie (gleichen Materials wie die Hülse) aufgeklebt, gesiegelt oder sonstwie befestigt werden. Die glatte Außenfläche hat sich beim Wickeln von sehr dünnen Folien als vorteilhaft erwiesen, um Falten im Wickel zu vermeiden. Eine Deckschicht an der Innenseite erhöht die Stabilität der Wickelhülse.In order to obtain a smooth outer surface and / or to achieve high bending rigidity by connecting the shaft heads, a cover layer made of a film (the same material as the sleeve) can also be glued, sealed or otherwise attached to the inside or outside of the pipe. The smooth outer surface has proven to be advantageous when winding very thin foils to avoid wrinkles in the winding. A cover layer on the inside increases the stability of the winding tube.
Die Wickelhülse kann aus Folien oder Bändern aus Metall, wie Aluminium, Stahl oder Kupfer hergestellt sein. Hierbei kann es von Vorteil sein, wenn das Material der Wickelhülse das gleiche ist wie das der aufzuwickelnden Folie oder des aufzuwickelnden Bandes. In diesem Fall können die auf der Wickelhülse gegebenenfalls verbleibenden Enden des auf der Hülse aufgewickelten Bandes oder der aufgewickelten Folie zusammen mit der Wickelhülse recycelt werden.The winding tube can be made of foils or strips of metal, such as aluminum, steel or copper. It can be advantageous here if the material of the winding tube is the same as that of the film or tape to be wound. In this case, the ends of the tape or film wound on the sleeve, which may remain on the winding tube, can be recycled together with the winding tube.
Die erfindungsgemäße Wickelhülse hat neben dem großen Vorteil der einfachen Recycelmöglichkeit, eventuell sogar zusammen mit auf ihr befindlichen Coil- oder Wickelresten, den weiteren Vorteil eines relativ geringen Gewichts bei einer den bisher üblichen Pappkernen entsprechenden Biegesteifigkeit, wobei sie in der Herstellung einfach und billig ist. Mit speziellen Vorrichtungen kann diese Wickelhülse trotz ihrer hohen Biegesteifigkeit, beispielsweise für den Transport zur Recycelanlage, zusammengedrückt und platzsparend transportiert werden.In addition to the great advantage of the simple possibility of recycling, the winding tube according to the invention, possibly even together with coil or winding remnants on it, the further advantage of a relatively low weight with a bending stiffness corresponding to the cardboard cores hitherto customary, it being simple and cheap to manufacture. With special devices, this winding tube can be pressed together despite its high bending stiffness, for example for transport to the recycling plant, and can be transported in a space-saving manner.
Die Herstellung einer solchen Wickelhülse kann erfindungsgemäß dadurch erfolgen, daß zunächst durch wendelförmiges Wickeln eines längsgewellten oder längsgerippten Metallbandes ein Rohr mit sich an seinen Rändern überlappenden Bandwickeln hergestellt wird und daß dann die an der Außenseite des Rohres befindlichen Wellenköpfe durch Ausübung eines radialen Druckes auf diese Köpfe abgeflacht und dabei gleichzeitig verbreitert werden. Anstelle dieser Abflachung oder nach dieser Abflachung der Wellenköpfe kann das Rohr in Achsrichtung derart gestaucht werden, daß sich die Lücken zwischen diesen Köpfen weiter verringern oder schließen. Im letzteren Falle können dann die aneinander anstoßenden Wellenköpfe durch Schweißen, Löten, Verkleben oder dergleichen miteinander fest verbunden werden.The manufacture of such a winding tube can be carried out according to the invention by first producing a tube with ribbon coils overlapping at its edges by helically winding a longitudinally corrugated or longitudinally ribbed metal strip, and then by applying a radial pressure on these heads to the shaft heads located on the outside of the tube flattened and widened at the same time. Instead of this flattening or after this flattening of the shaft heads, the tube can be compressed in the axial direction in such a way that the gaps between these heads are further reduced or closed. In the latter case, the abutting shaft heads can then be firmly connected to one another by welding, soldering, gluing or the like.
Es sind zwar bereits durch wendelförmiges Wickeln von längsgewellten Metallbändern hergestellte Wellrohre mit sich an ihren Rändern überlappenden Bandwickeln, auch solche mit abgeflachten, äußeren Wellenscheiteln, bekannt (EP 0 048 306 + OE-326 965). Diese bekannten Wellrohre dienen jedoch als Leitungsrohre für die Leitung von vornehmlich gasförmigen Medien, wie Rohre in Lüftungs- und Klimatisierungsanlagen oder dergleichen, nicht jedoch zur Herstellung von Wickelhülsen zum Aufwickeln von Bändern, Folien oder Blechen aus Kunststoff, Papier, Metall oder dergleichen.Corrugated tubes with ribbon coils overlapping at their edges, even those with flattened, outer corrugation apices, are already known (EP 0 048 306 + OE-326 965). However, these known corrugated tubes serve as conduits for the conduction of primarily gaseous media, such as tubes in ventilation and air conditioning systems or the like, but not for the production of winding sleeves for winding tapes, Foils or sheets of plastic, paper, metal or the like.
Die Erfindung kann daher auch in der Anwendung von Abschnitten dieser bekannten, gewickelten Wellrohre als Wickelhülsen zum Aufwickeln von Bändern, Folien oder Blechen aus Kunststoff, Papier, Metall oder dergleichen gesehen werden. Diese Wellrohrabschnitte können dann mit abgeflachten und/oder durch axiales Stauchen aneinander angenäherten Wellenköpfen gemäß dem vorgeschilderten Verfahren versehen werden.The invention can therefore also be seen in the use of sections of these known, wound corrugated tubes as winding sleeves for winding tapes, foils or sheets made of plastic, paper, metal or the like. These corrugated pipe sections can then be provided with flattened and / or by axially upsetting shaft heads which are brought closer to one another in accordance with the above-described method.
Neben gewickelten Wellrohren sind als Leitungsrohre auch solche Wellrohre bekannt, die nicht durch Wickeln eines längsgewellten Bandes hergestellt sind, sondern durch Extrusion, Blasformen oder Stauchrollen (z.B. EP 0 474 449 A2). Durch ihre Wellung, d.h. durch den im Rohrlängsschnitt unterschiedlich starken Wandaufbau können diese Rohre eine sehr große Flexibilität bei gleichzeitig hoher radialer Druckfestigkeit erhalten, so daß mit ihnen Leitungskrümmungen erzeugt werden können, wie dies bei druckfesteren Rohrleitungen häufig notwendig ist. Die Wellen des beispielhaft vorgenannten, nicht durch Wickeln hergestellten Wellrohres können dreieckförmigen Querschnitt und flachgepreßte äußere und innere Wellenköpfe haben, wobei sie mit den entsprechenden Köpfen der benachbarten Wellen aneinanderstoßen können. Dadurch soll dem Rohr trotz seiner großen Biegsamkeit eine möglichst glatte Innenfläche verliehen werden, was für eine turbulenzfreie Strömung im Rohr höchst wünschenswert ist.In addition to coiled corrugated pipes, corrugated pipes are also known as conduit pipes which are not produced by winding a longitudinally corrugated strip, but rather by extrusion, blow molding or upsetting rolls (for example EP 0 474 449 A2). Due to their corrugation, that is to say due to the different thickness of the wall structure in the longitudinal section of the pipe, these pipes can be given a very high degree of flexibility combined with a high radial pressure resistance, so that they can be used to produce pipe bends, as is often necessary with pressure-resistant pipes. The shafts of the above-mentioned corrugated tube not produced by winding can have a triangular cross-section and flat-pressed outer and inner shaft heads, whereby they can abut with the corresponding heads of the adjacent shafts. This should give the pipe as smooth an internal surface as possible, despite its great flexibility, which is highly desirable for a turbulence-free flow in the pipe.
Im folgenden sind Ausführungsbeispiele der erfindungsgemäßen Wickelhülse und des zu ihrer Herstellung dienenden Verfahrens beschrieben, die sich aus der Zeichnung ergeben:
- Fig. 1
- zeigt eine Querschnittshälfte eines Abschnittes einer Ausführungsform der erfindungsgemäßen Wickelhülse im Längsschnitt durch das Rohr;
- Fig. 2
- zeigt einen vergrößerten Ausschnitt des Längsschnitts durch die Rohrwand dieser Ausführungsform;
- Fig. 3
- zeigt eine Querschnittshälfte eines Abschnittes eines zur Herstellung der erfindungsgemäßen Wickelhülse dienenden Wellrohres im Längsschnitt;
- Fig. 4
- zeigt eine Querschnittshälfte eines Abschnitts eines anderen zur Herstellung der erfindungsgemäßen Wickelhülse verwendeten Rohres im Längsschnitt;
- Fig. 5
- zeigt schematisch einen Längsschnitt durch die die Wickelhülse bildenden Bandwickel;
- Fig. 6 bis 10
- zeigen Teillängsschnitte durch ein Wellrohr zur Herstellung der Wickelhülse vor dem Flachpressen der Wellenköpfe und Stauchen in Rohrlängsachse in zwei verschiedenen Ausführungsbeispielen;
- Fig. 11
- zeigt im Schnitt in schematischer Darstellung eine Vorrichtung zur Herstellung eines Wellrohres durch wendelförmiges Wickeln eines längsgewellten Bandes;
- Fig. 12
- zeigt einen Schnitt durch einen Teil einer anderen Ausführung einer solchen Vorrichtung;
- Fig. 13
- zeigt das Flachpressen der Wellenköpfe und des Wellengrundes durch Preßwalzen während der Rohrwicklung.
- Fig. 1
- shows a cross-sectional half of a portion of an embodiment of the winding tube according to the invention in longitudinal section through the tube;
- Fig. 2
- shows an enlarged section of the longitudinal section through the tube wall of this embodiment;
- Fig. 3
- shows a cross-sectional half of a section of a corrugated tube used to produce the winding tube according to the invention in longitudinal section;
- Fig. 4
- shows a cross-sectional half of a section of another tube used for producing the winding tube according to the invention in longitudinal section;
- Fig. 5
- schematically shows a longitudinal section through the tape winding forming the winding tube;
- 6 to 10
- show partial longitudinal sections through a corrugated tube for producing the winding tube before pressing the shaft heads flat and upsetting in the tube longitudinal axis in two different embodiments;
- Fig. 11
- shows in section a schematic representation of a device for producing a corrugated tube by helically winding a longitudinally corrugated band;
- Fig. 12
- shows a section through part of another embodiment of such a device;
- Fig. 13
- shows the flat pressing of the shaft heads and the shaft base by press rolling during the tube winding.
Wie sich aus Fig. 1 und 2 ergibt, hat die Rohrwandung der Wickelhülse eine wabenförmige bzw. parzellenartige Struktur, wobei die dreieckigen Waben durch an ihren äußeren und inneren Köpfen 1, 2 flachgepreßte Wellen oder Rippen eines in Rohrachsrichtung gestauchten Wellrohres gebildet sind. Die Flanken 3 der Wellen sind im Längsschnitt durch das Rohr im wesentlichen geradlinig, so daß die Waben einen etwa dreieckförmigen Querschnitt mit teils nach innen gerichteter, teils nach außen gerichteter Spitze haben. Die die Waben bildenden, flachgepreßten und gestauchten Wellen oder Rippen stoßen mit ihren durch die Flachpressung verbreiterten inneren und äußeren Köpfen 1, 2 aneinander an und können an ihren aneinanderzustoßenden Rändern durch Schweißen, Löten oder Kleben aneinander befestigt sein. An der Außenseite der Wickelhülse ist eine Deckschicht 19 vorgesehen.1 and 2, the tube wall of the winding tube has a honeycomb or parcel-like structure, the triangular honeycombs being formed by waves or ribs of a corrugated tube compressed in the tube axis direction on their outer and
Zur Herstellung dieser Wickelhülse dient ein längsgewelltes oder glattes, im Querschnitt etwa rechteckiges Band, welches in einer Wickeleinrichtung wendelförmig zu einem Wellrohr (Fig. 3) oder Rippenrohr (Fig. 4) gewickelt ist. Die Wickelsteigung ist so, daß sich zwei aufeinanderfolgende Bandwickel 4 um etwa die Hälfte ihrer Bandbreite überlappen (Fig. 5), so daß das Rohr über seine gesamte Länge an seiner Wandung jeweils zwei übereinanderliegende Bandlagen 5, 6 hat.A longitudinally corrugated or smooth band, approximately rectangular in cross section, is used to produce this winding tube, which is wound in a winding device in a helical manner to form a corrugated tube (FIG. 3) or finned tube (FIG. 4). The winding pitch is such that two successive tape windings 4 overlap by about half their bandwidth (FIG. 5), so that the tube has two superposed tape layers 5, 6 along its wall over its entire length.
Bei Verwendung eines Wellrohres werden die äußeren und inneren Köpfe 1, 2 von dessen in Fig. 6 im Querschnitt gezeigten Wellen durch Ausübung eines radialen Druckes flachgedrückt und verbreitert, wodurch diese Wellen die in Fig. 7 gezeigte Querschnittsform mit geneigten Flanken 3 erhalten. Anschließend wird das Wellrohr in Achsrichtung gestaucht, bis die Wellen mit ihren verbreiterten äußeren und inneren Köpfen 1, 2 aneinanderstoßen.When a corrugated tube is used, the outer and
Bei Verwendung eines Rippenrohres haben dessen in Fig. 9 im Querschnitt gezeigte Rippen bereits flache äußere und innere Köpfe 1, 2, sodaß dieses Rohr lediglich in Achsrichtung gestaucht werden muß, um die in Fig. 10 gezeigte Aneinanderlage der Rippenköpfe zu erhalten.When using a finned tube, the fins shown in cross section in FIG. 9 already have flat outer and
Zur Herstellung der Wickelhülse kann die in Fig. 11 schematisch dargestellte Vorrichtung dienen. In dieser Vorrichtung wird das von einem Coil 7 abgezogene Metallband 8 durch Paare von Führungs- und Formwalzen 9 hindurchgeführt, die dem Band seine gewünschte Längswellung gemäß Fig. 6 und 9 geben. Das so längsgewellte Band 10 läuft dann in eine Wickelvorrichtung ein, die bei dem in Fig. 11 gezeigten Beispiel von einem um seine Achse 11 drehbaren Wickeldorn 12 und am Umfang dieses Wickeldorns angeordneten Führungs- und Wickelwalzen 13, 14 gebildet ist. Dorn 12 und Walzen 13, 14 können eine der Längswellung bzw. Längsrippung des Bandes entsprechende Profilierung haben. In dieser Wickelvorrichtung wird das Band wendelförmig um den Dorn 12 herumgewickelt, wobei sich die Wellen oder Rippen der dabei gebildeten benachbarten Bandwickel im Bereich der Überlappung ineinanderlegen.The device shown schematically in FIG. 11 can be used to produce the winding tube. In this device, the
Wird das dabei entstehende Wickelrohr von einem längsgewellten Band gemäß Fig. 6 hergestellt, können die ineinandergelegten Wellen zweier benachbarter Bandwickel in dem Augenblick, wo sie zwischen dem Dorn 12 und der ersten Führungsrolle 13 hindurchlaufen, von diesem Dorn und der genannten Rolle die zum Flachdrücken und Verbreitern ihrer Wellenköpfe dienende radiale Druckbeaufschlagung erfahren, wodurch sie die in Fig. 7 dargestellte etwa schwalbenschwanzförmige Querschnittsform erhalten. Die flachgepreßten Wellenköpfe können dann durch Stauchen des Rohres in Achsrichtung zum Aneinanderstoßen gebracht und anschließend durch Schweißen, Löten, Kleben oder dergleichen fest miteinander verbunden oder bis zum Aneinanderstoßen der Wellenköpfe weiter durch radialen Druck verformt werden.If the resulting winding tube is produced from a longitudinally corrugated band according to FIG. 6, the nested waves of two adjacent band windings can, at the moment when they pass between the
Fig. 12 zeigt eine Wickelvorrichtung, die zwei einander gegenüberliegende Einlauf- und Verbindungswalzen 15, 16 hat, zwischen denen das vorher längsgewellte oder längsgerippte Band 10 hindurchläuft. Anschließend wird diesem Band durch eine Biegerolle 17 eine Anbiegung verliehen, wodurch das Band unter weiterer Führung durch Führungsrollen 18 zum Rohr geformt wird. Das Flachpressen und Verbreitern der äußeren und inneren Wellenköpfe 1, 2 erfolgt dabei durch Druckwalzen 15', 16', d.h. zwischen zwei Walzen, die an einer der Einlaufstelle in die Wickelvorrichtung nachfolgenden Stelle angeordnet sind. Außerdem führt sie zu einer fachwerkartigen Versteifung der Rohrwand, wodurch das Rohr seine Flexibilität verliert. Es wird ein leichtes biegesteifes Rohr mit durch Querrippen versteifter Doppelwandung erhalten, von welchem jeweils die Länge der gewünschten Wickelhülse abgetrennt werden kann.12 shows a winding device which has two inlet and connecting
Claims (23)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19507514 | 1995-03-03 | ||
| DE19507514A DE19507514C2 (en) | 1995-03-03 | 1995-03-03 | Metal winding tube |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0729911A2 true EP0729911A2 (en) | 1996-09-04 |
| EP0729911A3 EP0729911A3 (en) | 1997-08-20 |
| EP0729911B1 EP0729911B1 (en) | 1999-07-28 |
Family
ID=7755585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96103133A Expired - Lifetime EP0729911B1 (en) | 1995-03-03 | 1996-03-01 | Metallic winding core |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0729911B1 (en) |
| AT (1) | ATE182554T1 (en) |
| DE (2) | DE19507514C2 (en) |
| DK (1) | DK0729911T3 (en) |
| ES (1) | ES2133853T3 (en) |
| GR (1) | GR3031055T3 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1176110A2 (en) * | 2000-07-28 | 2002-01-30 | Voith Paper Patent GmbH | Method and winding core for avoiding winding errors in a material web |
| WO2002064476A1 (en) * | 2001-02-09 | 2002-08-22 | Alcan International Limited | Winding tube and method for the production thereof |
| DE10325511A1 (en) * | 2003-06-04 | 2005-01-20 | Kunststoff-Spritzgußwerk Ing. Klaus Burk GmbH | Sorting process for winding residues and winding tube |
| EP1598297A1 (en) * | 2004-05-17 | 2005-11-23 | Promopack SPA | Core for rolls of sheet material |
| ITMI20101139A1 (en) * | 2010-06-23 | 2011-12-24 | Colines Spa | TUBULAR SUPPORT FOR THE WINDING OF MATERIAL IN THE SHEET |
| WO2011154745A3 (en) * | 2010-06-11 | 2012-02-23 | Composite Core Technologies Ltd | Web-winding core |
| CN103827009A (en) * | 2011-05-03 | 2014-05-28 | 珀利奇纳有限公司 | Winding-up apparatus |
| CN112756445A (en) * | 2020-12-16 | 2021-05-07 | 中国空气动力研究与发展中心高速空气动力研究所 | Special forming tool for resistance belt |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009043932A1 (en) * | 2009-09-02 | 2011-03-10 | Stükerjürgen, Ferdinand | Winding tube with increased stability |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR459184A (en) * | 1912-07-06 | 1913-10-29 | Edouard Prosper Renard | Sleeve for winding |
| DE661567C (en) * | 1934-07-19 | 1938-06-21 | Naamlooze Vennootschap Kunstzi | Adjustable spool for artificial silk |
| DE2235012A1 (en) * | 1972-07-17 | 1974-01-31 | Emil Siegwart | FLEXIBLE CORRUGATED TUBE |
| WO1991004218A1 (en) * | 1989-09-12 | 1991-04-04 | Dan Hilfling Petersen | Tube, in particular core tube for winding up web shaped material or for storing articles and object to be used for forming such tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE248569C (en) * | ||||
| US2328335A (en) * | 1940-06-10 | 1943-08-31 | Ind Rayon Corp | Flexible winding spool |
-
1995
- 1995-03-03 DE DE19507514A patent/DE19507514C2/en not_active Expired - Fee Related
-
1996
- 1996-03-01 DE DE59602507T patent/DE59602507D1/en not_active Expired - Lifetime
- 1996-03-01 AT AT96103133T patent/ATE182554T1/en not_active IP Right Cessation
- 1996-03-01 DK DK96103133T patent/DK0729911T3/en active
- 1996-03-01 ES ES96103133T patent/ES2133853T3/en not_active Expired - Lifetime
- 1996-03-01 EP EP96103133A patent/EP0729911B1/en not_active Expired - Lifetime
-
1999
- 1999-08-23 GR GR990402134T patent/GR3031055T3/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR459184A (en) * | 1912-07-06 | 1913-10-29 | Edouard Prosper Renard | Sleeve for winding |
| DE661567C (en) * | 1934-07-19 | 1938-06-21 | Naamlooze Vennootschap Kunstzi | Adjustable spool for artificial silk |
| DE2235012A1 (en) * | 1972-07-17 | 1974-01-31 | Emil Siegwart | FLEXIBLE CORRUGATED TUBE |
| WO1991004218A1 (en) * | 1989-09-12 | 1991-04-04 | Dan Hilfling Petersen | Tube, in particular core tube for winding up web shaped material or for storing articles and object to be used for forming such tube |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1176110A3 (en) * | 2000-07-28 | 2003-02-12 | Voith Paper Patent GmbH | Method and winding core for avoiding winding errors in a material web |
| EP1176110A2 (en) * | 2000-07-28 | 2002-01-30 | Voith Paper Patent GmbH | Method and winding core for avoiding winding errors in a material web |
| US7040569B2 (en) | 2001-02-09 | 2006-05-09 | Alcan International Limited | Winding tube and method for the production thereof |
| WO2002064476A1 (en) * | 2001-02-09 | 2002-08-22 | Alcan International Limited | Winding tube and method for the production thereof |
| DE10105973A1 (en) * | 2001-02-09 | 2002-09-05 | Alcan Gmbh | Winding core and method for producing a winding core |
| DE10105973B4 (en) * | 2001-02-09 | 2005-11-10 | Alcan Deutschland Gmbh | Winding tube and method for producing a winding tube |
| DE10325511A1 (en) * | 2003-06-04 | 2005-01-20 | Kunststoff-Spritzgußwerk Ing. Klaus Burk GmbH | Sorting process for winding residues and winding tube |
| EP1598297A1 (en) * | 2004-05-17 | 2005-11-23 | Promopack SPA | Core for rolls of sheet material |
| WO2011154745A3 (en) * | 2010-06-11 | 2012-02-23 | Composite Core Technologies Ltd | Web-winding core |
| ITMI20101139A1 (en) * | 2010-06-23 | 2011-12-24 | Colines Spa | TUBULAR SUPPORT FOR THE WINDING OF MATERIAL IN THE SHEET |
| WO2011160763A1 (en) * | 2010-06-23 | 2011-12-29 | Colines S.P.A. | Perfected tubular support for the winding of material in sheets and method for its production |
| CN103827009A (en) * | 2011-05-03 | 2014-05-28 | 珀利奇纳有限公司 | Winding-up apparatus |
| CN112756445A (en) * | 2020-12-16 | 2021-05-07 | 中国空气动力研究与发展中心高速空气动力研究所 | Special forming tool for resistance belt |
Also Published As
| Publication number | Publication date |
|---|---|
| DK0729911T3 (en) | 1999-11-29 |
| GR3031055T3 (en) | 1999-12-31 |
| ATE182554T1 (en) | 1999-08-15 |
| DE19507514C2 (en) | 1997-09-25 |
| ES2133853T3 (en) | 1999-09-16 |
| EP0729911A3 (en) | 1997-08-20 |
| DE19507514A1 (en) | 1996-09-26 |
| DE59602507D1 (en) | 1999-09-02 |
| EP0729911B1 (en) | 1999-07-28 |
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