EP0148061B1 - Apparatus for the continuous manufacture of a tubular structure of helically wound interlocking strip material - Google Patents

Apparatus for the continuous manufacture of a tubular structure of helically wound interlocking strip material Download PDF

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Publication number
EP0148061B1
EP0148061B1 EP84402515A EP84402515A EP0148061B1 EP 0148061 B1 EP0148061 B1 EP 0148061B1 EP 84402515 A EP84402515 A EP 84402515A EP 84402515 A EP84402515 A EP 84402515A EP 0148061 B1 EP0148061 B1 EP 0148061B1
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EP
European Patent Office
Prior art keywords
mandrel
rotation
tubular structure
fact
metal ribbon
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.)
Expired
Application number
EP84402515A
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German (de)
French (fr)
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EP0148061A1 (en
Inventor
Lucien Legallais
Bernard Kuntz
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Technip France SAS
Original Assignee
Coflexip SA
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Publication date
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Publication of EP0148061A1 publication Critical patent/EP0148061A1/en
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Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/126—Supply, or operations combined with supply, of strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/121—Making tubes or metal hoses with helically arranged seams with non-welded and non-soldered seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/127—Tube treating or manipulating combined with or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off

Definitions

  • the present invention relates to a device for continuously producing a spiral tubular structure in stapled strip.
  • the applicant company has developed and markets flexible tubular pipes with high mechanical properties, in particular with regard to tensile strength and pressure resistance, for various applications, and in particular for the exploitation of seabed oil. exerted, both from the outside on the pipe, and from the inside by the products, in particular the hydrocarbons, transported.
  • Such conduits generally comprise at least one layer formed of a tubular structure of stapled strip wound in a helix, the turns having a section substantially in the form of an S or Z allowing their mutual attachment.
  • Such a tubular structure is thus used in pipes of the “rough bore” type for producing the internal carcass of the pipe which then constitutes a vault for the latter.
  • connection is also made, for certain applications, to use at least one other tubular layer formed of a spiral structure of stapled strip forming a hoop intended to reinforce the resistance of the pipe to internal and external pressures.
  • the stapled strip fret or frets are usually separated from the inner vault by a sheath made of thermoplastic material.
  • the pipe is generally supplemented by one or more layers of armouring son and comprises an outer thermoplastic sheath for sealing and protecting against corrosion.
  • fret bore in which the internal layer is a thermoplastic sheet, one or more frets are also used, each formed of a spiral structure in stapled strip.
  • Spiral tubular structures in stapled strip also find applications in other types of flexible or rigid pipes.
  • the coil must therefore be mounted for this purpose in a cage capable of rotating around the longitudinal axis, means being further provided for rotating the coil in the cage around a transverse axis. It is also necessary to rotate the extractor mechanism around the same longitudinal axis, which is then mounted in a rotating cage which must be driven in synachronism with the cage containing the take-up reel.
  • a device comprising on the one hand a circular plate rotating about a horizontal axis coinciding with the longitudinal axis of the tubular structure to be formed, comprising, on a same side, a support member for a flat strip supply reel, a set of motorized profiling rollers for driving the strip and imparting to it a section substantially in the form of an S or Z, means for guiding the strip between the supply coil and the set of profiling rollers, a tubular mandrel mounted coaxially on said plate in the vicinity of the center thereof and on the other hand a longitudinal drive mechanism of the formed tubular structure, arranged downstream of said turntable to drive the structure formed towards a take-up reel.
  • the present invention proposes to provide a device avoiding these drawbacks and allowing to produce tubular structures of easily adjustable diameter, without a central core or around a flexible or rigid central core.
  • the device according to the invention is characterized by the fact that it comprises, on a plate, a plurality of pressure rollers mounted idly, adjustable in position around the mandrel and distributed around a mandrel near its axial end to ensure application on the latter of the profiled strip leaving the profiling wheels as well as the stapling of the successive turns and the extraction of the stapled structure formed, the mandrel being driven in rotation with an opposite speed and preferably less than the speed of rotation of the plate, for example a speed of the order of 10% thereof allowing the mandrel to slide relative to the strip during winding in order to avoid seizing thereof.
  • the tubular product formed does not rotate on itself, this being obtained in practice by adjusting the speed of rotation of the profiling wheels as a function of the speed of rotation of the circular plate and the diameter of the tubular structure. formed.
  • Diameter changes can be easily made by simply changing the mandrel and moving the crazy pressure rollers around it.
  • the device further comprises, between the plate and the drive mechanism, a set of support elements, such as V-shaped pads, resting on the periphery of the structure formed. so as to tighten the turns.
  • a set of support elements such as V-shaped pads
  • Such a set of support elements is particularly advantageous when the spiraling of the stapled strip structure takes place around a core because such an assembly allows the tightening of the turns to the diameter of the core.
  • the core is then fed through an axial opening provided in the plate and through an axial internal cavity of the mandrel. It is understood in this case that the core supply coil, when the latter is flexible, also does not need to be driven in rotation about the longitudinal axis since the core itself is not driven in rotation.
  • the set of support elements when provided, is mounted on a rotating frame animated with a speed of rotation greater than that of the plate.
  • the set of profiling rollers is mounted on a support articulated on the plate and tiltable relative thereto, the inclination of the support determining the angle of winding of the turns of the strip of the structure. formed.
  • the drive mechanism can be of any suitable type, for example with motorized rollers or of the trichenilla type, this mechanism helping to immobilize the formed structure in rotation.
  • the device illustrated in the drawing comprises a circular plate 1 driven in rotation in the direction shown diagrammatically by the arrow in FIG. 2, around a horizontal axis 2 by drive means not shown.
  • the plate 1 On one of its faces, the plate 1 has different components which will be described below.
  • the assembly 8 comprises two blocks having, in the example illustrated each, six motorized profiling wheels, the blocks being separable from each other as shown diagrammatically by the arrows in FIG. 2.
  • the assembly 8 can be displaced by translation in the plane of the plate so that the strip exiting from the set of rollers is disposed tangentially with respect to the external surface of the mandrel 10.
  • the set of profiling rollers 8 is also mounted, as can be seen best in Figures 1 and 3 on a support 9 articulated on the plate 1 and tiltable relative thereto by an angle a variable, the inclination of the support 9 relative to the plate 1 determining the winding angle strip turns formed as best seen on examining Figure 3.
  • a tubular mandrel 10 around which the spiraling of the strip takes place.
  • the mandrel 10 is driven in rotation, by drive means not shown, so as to be driven by an opposite speed of rotation and lower than the speed of rotation of the plate, this speed possibly being for example of the order of 10% of the speed of the platter.
  • the profiled strip exiting from the set of knurls 8 is applied to the periphery of the mandrel by a plurality of idle pressing rollers 11 distributed around the mandrel 10, ensuring the stapling of the successive turns formed, their tightening and extracting them from the mandrel.
  • the spiral tubular structure in stapled strip 12, thus formed, is extracted by a longitudinal drive mechanism, of the trichenilla type 13 making it possible to contribute to the immobili rotation of the structure formed and the adjustment of the winding pitch.
  • the device comprises, at the edge, between the plate 1 and the drive mechanism 13, a set of support elements 14 made up of V-shaped pads, 15, constrained by springs. 16 and mounted on a frame 17 driven in rotation, by means not shown, about the axis 2.
  • the speed of rotation of the rotating frame 17 is greater than the speed of rotation of the plate 1.
  • the device in use has been shown to produce a carcass of stapled strip in the form of a carcass without an inner core.
  • the first turns are wound on the mandrel, then once the turns have reached the drive mechanism 13, the latter pulls the formed carcass at a speed proportional to the speed of rotation of the plate 2 allowing the continuous production of a spiral tubular structure in stapled strip which is wound around a take-up reel, not shown, arranged downstream of the drive mechanism.

Description

La présente invention est relative à un dispositif pour réaliser en continu une structure tubulaire spiralée en feuillard agrafé.The present invention relates to a device for continuously producing a spiral tubular structure in stapled strip.

La société déposante a développé et commercialise pour différentes applications, et notamment pour l'exploitation pétrolière de fonds sous- marins, des conduites tubulaires flexibles présentant des caractéristiques mécaniques élevées, en particulier en ce qui concerne la résistance à la traction et la résistance aux pressions exercées, tant de l'extérieur sur la conduite, que de l'intérieur par les produits, notamment les hydrocarbures, transportés.The applicant company has developed and markets flexible tubular pipes with high mechanical properties, in particular with regard to tensile strength and pressure resistance, for various applications, and in particular for the exploitation of seabed oil. exerted, both from the outside on the pipe, and from the inside by the products, in particular the hydrocarbons, transported.

De telles conduites comportent en général au moins une couche formée d'une structure tubulaire en feuillard agrafé enroulé en hélice, les spires présentant une section sensiblement en forme de S ou de Z permettant leur accrochage mutuel.Such conduits generally comprise at least one layer formed of a tubular structure of stapled strip wound in a helix, the turns having a section substantially in the form of an S or Z allowing their mutual attachment.

Une telle structure tubulaire est ainsi utilisée dans des conduites te type «rough bore» pour réaliser la carcasse interne de la conduite qui constitue alors une voûte pour celle-ci.Such a tubular structure is thus used in pipes of the “rough bore” type for producing the internal carcass of the pipe which then constitutes a vault for the latter.

Dans ce type de conduite, il est également prévu, pour certaines applications, d'utiliser au moins une autre couche tubulaire formée d'une structure spiralée en feuillard agrafé formant une frette destinée à renforcer la résistance de la conduite aux pressions intérieures et extérieures. La ou les frettes en feuillard agrafé sont habituellement séparées de la voûte intérieure par une gaine en matière thermoplastique. La conduite est en général complétée par une ou plusieurs couches de fils d'armure et comporte une gaine extérieure thermoplastique d'étanchéité et de protection vis- à-vis de la corrosion.In this type of pipe, provision is also made, for certain applications, to use at least one other tubular layer formed of a spiral structure of stapled strip forming a hoop intended to reinforce the resistance of the pipe to internal and external pressures. The stapled strip fret or frets are usually separated from the inner vault by a sheath made of thermoplastic material. The pipe is generally supplemented by one or more layers of armouring son and comprises an outer thermoplastic sheath for sealing and protecting against corrosion.

Dans un autre type de conduites dit «smooth bore» dans lequel la couche interne est une nappe thermoplastique on utilise également une ou plusieurs frettes formées chacune d'une structure spiralée en feuillard agrafé.In another type of pipe called “smooth bore” in which the internal layer is a thermoplastic sheet, one or more frets are also used, each formed of a spiral structure in stapled strip.

Des structures tubulaires spiralées en feuillard agrafé trouvent par ailleurs également des applications dans d'autres types de conduites flexibles ou rigides.Spiral tubular structures in stapled strip also find applications in other types of flexible or rigid pipes.

On connaît déjà un dispositif pour réaliser en grande longueur une structure tubulaire spiralée en feuillard agrafé comportant une alimentation en feuillard préalablement profilé de façon à présenter une section agrafable sensiblement en forme de S ou de Z, un poste d'enroulement fixe comprenant une pluralité de doigts presseurs destinés à réaliser l'agrafage du feuillard profilé, un mécanisme d'extraction de la structure tubulaire formée et une bobine de stockage de celle-ci. On comprend que pour former la structure tubulaire spiralée il est nécessaire de provoquer la rotation de celle-ci autour de son axe longitudinal. Pour cela il est nécessaire de provoquer la rotation de la bobine réceptrice autour d'un axe longitudinal en plus de sa rotation autour d'un axe transversal pour l'enroulement de la structure tubulaire sur elle. La bobine doit donc être montée à cet effet dans une cage susceptible de tourner autour de l'axe longitudinal, des moyens étant en outre prévus pour faire tourner la bobine dans la cage autour d'un axe transversal. Il est de plus nécessaire da faire tourner autour du même axe longitu- dinalle mécanisme extracteur, qui est alors monté dans une cage tournante qui doit être entraînée en synachronisme avec la cage contenant la bobine réceptrice.There is already known a device for producing a long length of a spiral tubular structure in stapled strip comprising a supply of strip previously shaped so as to have a staplable section substantially in the form of an S or Z, a stationary winding station comprising a plurality of pressing fingers intended for stapling the profiled strip, a mechanism for extracting the tubular structure formed and a reel for storing it. It is understood that to form the spiral tubular structure it is necessary to cause the rotation of the latter around its longitudinal axis. For this it is necessary to cause the rotation of the take-up reel around a longitudinal axis in addition to its rotation around a transverse axis for the winding of the tubular structure on it. The coil must therefore be mounted for this purpose in a cage capable of rotating around the longitudinal axis, means being further provided for rotating the coil in the cage around a transverse axis. It is also necessary to rotate the extractor mechanism around the same longitudinal axis, which is then mounted in a rotating cage which must be driven in synachronism with the cage containing the take-up reel.

Lorsque l'on sait que pour produire des structures tubulaires spiralées en grande longueur les bobines réceptrices présentent des diamètres de plusieurs mètres on conçoit la complexité du dispositif par suite de la nécessité de faire tourner en synchronisme des masses importantes. Cette complexité est encore accrue lorsque la structure tubulaire doit être réalisée autour du noyau, tel qu'une gaine en matière thermoplastique ou une structure à une ou plusieurs couches précédemment réalisée, car dans ce cas il est nécessaire que le noyau soit également animé d'un mouvement de rotation autour de son axe longitudinal, et, à cet effet, la bobine à partir de laquelle se déroule le noyau, lorsque celui-ci est flexible, doit également être montée dans un cadre entraîné en rotation autour de l'axe longitudinal, le mouvement de rotation de cette bobine devant naturellement être synchronisé avec le mouvement de rotation de la cage de la bobine réceptrice et de la cage du mécanisme extracteur.When it is known that to produce tubular structures spiraled in great length the receiving coils have diameters of several meters one understands the complexity of the device due to the need to rotate large masses in synchronism. This complexity is further increased when the tubular structure must be produced around the core, such as a thermoplastic sheath or a structure with one or more layers previously produced, because in this case it is necessary that the core is also animated by a rotational movement around its longitudinal axis, and, for this purpose, the coil from which the core unwinds, when the latter is flexible, must also be mounted in a frame driven in rotation about the longitudinal axis , the rotational movement of this coil naturally having to be synchronized with the rotational movement of the receiving coil cage and the cage of the extractor mechanism.

On connaît, par ailleurs, d'après le brevet GB-A-110576 un dispositif comprenant d'une part un plateau circulaire tournant autour d'un axe horizontal coîncidant avec l'axe longitudinal de la structure tubulaire à former, comportant, sur une même face, un organe de support pour une bobine d'alimentation en feuillard plat, un ensemble de molettes de profilage motorisées pour entraîner le feuillard et lui communiquer une section sensiblement en forme de S ou de Z, des moyens de guidage du feuillard entre la bobine d'alimentation et l'ensemble de molettes de profilage, un mandrin tubulaire monté coaxialement sur ledit plateau au voisinage du centre de celui-ci et d'autre part un mécanisme d'entrainement longitudinal de la structure tubulaire formée, disposé en aval dudit plateau tournant pour entraîner la structure formée vers une bobine réceptrice.Also known from GB-A-110576 is a device comprising on the one hand a circular plate rotating about a horizontal axis coinciding with the longitudinal axis of the tubular structure to be formed, comprising, on a same side, a support member for a flat strip supply reel, a set of motorized profiling rollers for driving the strip and imparting to it a section substantially in the form of an S or Z, means for guiding the strip between the supply coil and the set of profiling rollers, a tubular mandrel mounted coaxially on said plate in the vicinity of the center thereof and on the other hand a longitudinal drive mechanism of the formed tubular structure, arranged downstream of said turntable to drive the structure formed towards a take-up reel.

Outre le fait qu'il n'était pas possible avec le dispositif antérieur de réaliser des structures tubulaires agrafées autour d'un noyau, un inconvénient important du dispositif antérieur résulte de l'impossibilité de contrôler l'agrafage et le serrage des spires du feuillard profilé lors de son enroulement sur le mandrin. Pour chaque bande de feuillard, il est en effet prévu uniquement de disposer la dernière molette motorisée au voisinage du mandrin. Une telle disposition ne permet pas d'assurer un bon serrage des spires du feuillard et on outre du fait des liaisons d'entraînement entre la molette centrale et les autres molettes de profilage il n'est pas possible de modifier aisément la position de la molette centrale notamment pour passer d'un diamètre de fabrication à un autre.In addition to the fact that it was not possible with the prior device to produce tubular structures stapled around a core, a significant drawback of the prior device results from the impossibility of controlling the stapling and tightening of the turns of the strip profiled during its winding on the mandrel. For each strip of strip, it is in fact provided only for placing the last motorized wheel in the vicinity of the mandrel. Such an arrangement does not ensure good tightening of the turns of the strip and, in addition to the fact that the drive links between the central wheel and the other profiling wheels it is not possible to easily modify the position of the wheel. especially to go from one manufacturing diameter to another.

La présente invention se propose de fournir un dispositif évitant ces inconvénients et permettant de réaliser des structures tubulaires de diamètre facilement ajustable, sans noyau central ou autour d'un noyau central souple ou rigide.The present invention proposes to provide a device avoiding these drawbacks and allowing to produce tubular structures of easily adjustable diameter, without a central core or around a flexible or rigid central core.

Le dispositif selon l'invention se caractérise par le fait qu'il comprend sur un plateau une pluralité de rouleaux presseurs montés fous, ajustables en position autour du mandrin et répartis autour d'un mandrin au voisinage de son extrémité axiale pour assurer l'application sur celui-ci du feuillard profilé sortant des molettes de profilage ainsi que l'agrafage des spires successives et l'extraction de la structure agrafée formée, le mandrin étant entraîné en rotation avec une vitesse opposée et de préférence inférieure à la vitesse de rotation du plateau, par exemple une vitesse de l'ordre de 10% de celle-ci permettant le glissement du mandrin par rapport au feuillard en cours d'enroulement afin d'éviter le grippage de celui-ci.The device according to the invention is characterized by the fact that it comprises, on a plate, a plurality of pressure rollers mounted idly, adjustable in position around the mandrel and distributed around a mandrel near its axial end to ensure application on the latter of the profiled strip leaving the profiling wheels as well as the stapling of the successive turns and the extraction of the stapled structure formed, the mandrel being driven in rotation with an opposite speed and preferably less than the speed of rotation of the plate, for example a speed of the order of 10% thereof allowing the mandrel to slide relative to the strip during winding in order to avoid seizing thereof.

Selon l'invention, le produit tubulaire formé ne tourne pas sur lui-même, ceci étant obtenu dans la pratique en ajustant la vitesse de rotation des molettes de profilage en fonction de la vitesse de rotation du plateau circulaire et du diamètre de la structure tubulaire formée.According to the invention, the tubular product formed does not rotate on itself, this being obtained in practice by adjusting the speed of rotation of the profiling wheels as a function of the speed of rotation of the circular plate and the diameter of the tubular structure. formed.

Les changements de diamètre peuvent se faire aisément par simple changement du mandrin et déplacement des rouleaux presseurs fous autour de celui-ci.Diameter changes can be easily made by simply changing the mandrel and moving the crazy pressure rollers around it.

De façon avantageuse, le dispositif comprend, en outre, entre le plateau et le mécanisme d'en- trainement un ensemble d'éléments d'appui, tels que des patins en forme de V, s'appuyant sur la périphérie de la structure formée de manière à en resserrer les spires.Advantageously, the device further comprises, between the plate and the drive mechanism, a set of support elements, such as V-shaped pads, resting on the periphery of the structure formed. so as to tighten the turns.

Un tel ensemble d'éléments d'appui est en particulier intéressant lorsque le spiralage de la structure en feuillard agrafé s'effectue autour d'un noyau car un tel ensemble permet le resserrement des spires au diamètre du noyau. Le .noyau est alors alimenté au travers d'une ouverture axiale prévue dans le plateau et au travers d'une cavité intérieure axiale du mandrin. On comprend dans ce cas que la bobine d'alimentation en noyau, lorsque celui-ci est flexible, n'a également pas besoin d'être entraînée en rotation autour de l'axe longitudinal puisque le noyau n'est lui-même pas entraîné en rotation.Such a set of support elements is particularly advantageous when the spiraling of the stapled strip structure takes place around a core because such an assembly allows the tightening of the turns to the diameter of the core. The core is then fed through an axial opening provided in the plate and through an axial internal cavity of the mandrel. It is understood in this case that the core supply coil, when the latter is flexible, also does not need to be driven in rotation about the longitudinal axis since the core itself is not driven in rotation.

L'ensemble d'éléments d'appui, .lorsqu'il est prévu, est monté sur un bâti tournant animé d'une vitesse de rotation supérieure à celle du plateau.The set of support elements, when provided, is mounted on a rotating frame animated with a speed of rotation greater than that of the plate.

Dans un mode avantageux de réalisation l'ensemble de molettes de profilage est monté sur un support articulé sur le plateau et inclinable par rapport à celui-ci, l'inclinaison du support déterminant l'angle d'enroulement des spires du feuillard de la structure formée.In an advantageous embodiment, the set of profiling rollers is mounted on a support articulated on the plate and tiltable relative thereto, the inclination of the support determining the angle of winding of the turns of the strip of the structure. formed.

Le mécanisme d'entrainement peut être de tout type approprié, par exemple à rouleaux motorisés ou de type trichenille, ce mécanisme contribuant à immobiliser en rotation la structure formée.The drive mechanism can be of any suitable type, for example with motorized rollers or of the trichenilla type, this mechanism helping to immobilize the formed structure in rotation.

Dans le but de mieux faire comprendre l'invention, on va maintenant en décrire à titre d'exemple en aucune manière limitatif un mode de réalisation en se référant au dessin annexé dans lequel:

  • - la figure 1 est une vue en élévation très schématique du dispositif selon l'invention,
  • - la figure 2 est une vue frontale du plateau tournant,
  • - la figure 3 est une vue de dessus correspondant à la figure 2, et
  • - la figure 4 est une vue en coupe selon IV-IV de la figure 3 montrant la structure des spires agrafées de la structure tubulaire réalisée.
In order to better understand the invention, an embodiment will now be described by way of example in no way limiting, with reference to the appended drawing in which:
  • FIG. 1 is a very schematic elevation view of the device according to the invention,
  • FIG. 2 is a front view of the turntable,
  • FIG. 3 is a top view corresponding to FIG. 2, and
  • - Figure 4 is a sectional view along IV-IV of Figure 3 showing the structure of the stapled turns of the tubular structure produced.

Le dispositif illustré sur le dessin comprend un plateau circulaire 1 entraîné en rotation dans le sens schématisé par la flèche sur la figure 2, autour d'un axe horizontal 2 par des moyens d'entraînement non représentés.The device illustrated in the drawing comprises a circular plate 1 driven in rotation in the direction shown diagrammatically by the arrow in FIG. 2, around a horizontal axis 2 by drive means not shown.

Sur une de ses faces, le plateau 1 présente différents composants que l'on va décrire ci-après.On one of its faces, the plate 1 has different components which will be described below.

Le plateau 1 comporte tout d'abord un organe de support 3 pour une bobine d'alimentation 4 en feuillard plat 5:

  • Le feuillard plat 5 qui, comme on le voit le mieux sur la figure 2, se déroule de la bobine 4, est guidé par des ensembles de rouleaux de guidage 6, puis par un mécanisme de renvoi 7 dans un ensemble de molettes de profilage, désigné globalement par 8, destiné à communiquer au feuillard une section sensiblement en forme de S ou de Z que l'on voit sur la figure 4.
The plate 1 firstly comprises a support member 3 for a supply coil 4 in flat strip 5:
  • The flat strip 5 which, as best seen in FIG. 2, takes place from the reel 4, is guided by sets of guide rollers 6, then by a return mechanism 7 in a set of profiling rollers, generally designated by 8, intended to communicate to the strip a section substantially in the form of an S or Z which can be seen in FIG. 4.

L'ensemble 8 comporte deux blocs présentant dans l'exemple illustré chacun six molettes de profilage motorisées, les blocs étant écartables l'un de l'autre comme schématisé par les flèches sur la figure 2. De plus, l'ensemble 8 peut être déplacé par translation dans le plan du plateau de manière que le feuillard sortant de l'ensemble de molettes soit disposé tangentiellement par rapport à la surface extérieure du mandrin 10. L'ensemble de molettes de profilage 8 est en outre monté, comme on le voit le mieux sur les figures 1 et 3 sur un support 9 articulé sur le plateau 1 et inclinable par rapport à celui-ci d'un angle a variable, l'inclinaison du support 9 par rapport au plateau 1 déterminant l'angle d'enroulement des spires de feuillard formé comme on s'en rend le mieux compte à l'examen de la figure 3.The assembly 8 comprises two blocks having, in the example illustrated each, six motorized profiling wheels, the blocks being separable from each other as shown diagrammatically by the arrows in FIG. 2. In addition, the assembly 8 can be displaced by translation in the plane of the plate so that the strip exiting from the set of rollers is disposed tangentially with respect to the external surface of the mandrel 10. The set of profiling rollers 8 is also mounted, as can be seen best in Figures 1 and 3 on a support 9 articulated on the plate 1 and tiltable relative thereto by an angle a variable, the inclination of the support 9 relative to the plate 1 determining the winding angle strip turns formed as best seen on examining Figure 3.

Sur le plateau 1 au voisinage du centre de celui-ci et coaxialement à l'axe de rotation 2, est monté un mandrin tubulaire 10 autour duquel s'effectue le spiralage du feuillard. Le mandrin 10 est entraîné en rotation, par des moyens d'entraînement non représentés, de façon à être animé d'une vitesse de rotation opposée et inférieure à la vitesse de rotation du plateau, cette vitesse pouvant être par exemple de l'ordre de 10% de la vitesse du plateau.On the plate 1 in the vicinity of the center thereof and coaxial with the axis of rotation 2, is mounted a tubular mandrel 10 around which the spiraling of the strip takes place. The mandrel 10 is driven in rotation, by drive means not shown, so as to be driven by an opposite speed of rotation and lower than the speed of rotation of the plate, this speed possibly being for example of the order of 10% of the speed of the platter.

Comme on le voit sur le dessin le feuillard profilé sortant de l'ensemble de molettes 8 est appliqué à la périphérie du mandrin par une pluralité de rouleaux presseurs 11 fous répartis autour du mandrin 10, assurant l'agrafage des spires successives formées, leur serrage et leur extraction du mandrin.As can be seen in the drawing, the profiled strip exiting from the set of knurls 8 is applied to the periphery of the mandrel by a plurality of idle pressing rollers 11 distributed around the mandrel 10, ensuring the stapling of the successive turns formed, their tightening and extracting them from the mandrel.

La structure tubulaire spiralée en feuillard agrafé 12, ainsi formée, est extraite par un mécanisme d'entrainement longitudinal, de type trichenille 13 permettant de contribuer à l'immobilisation en rotation de la structure formée et au réglage du pas d'enroulement. Dans l'exemple illustré le dispositif comporte en ourte, entre le plateau 1 et le mécanisme d'entrainement 13, un ensemble d'éléments d'appui 14 constitués de patins en V, 15, contraints par des ressorts.16 et montés sur un bâti 17 entraîné en rotation, par des moyens non représentés, autour de l'axe 2. La vitesse de rotation du bâti tournant 17 est supérieure à la vitesse de rotation du plateau 1.The spiral tubular structure in stapled strip 12, thus formed, is extracted by a longitudinal drive mechanism, of the trichenilla type 13 making it possible to contribute to the immobili rotation of the structure formed and the adjustment of the winding pitch. In the example illustrated, the device comprises, at the edge, between the plate 1 and the drive mechanism 13, a set of support elements 14 made up of V-shaped pads, 15, constrained by springs. 16 and mounted on a frame 17 driven in rotation, by means not shown, about the axis 2. The speed of rotation of the rotating frame 17 is greater than the speed of rotation of the plate 1.

Dans l'exemple illustré l'on a montré le dispositif en cours d'utilisation pour réaliser une carcasse en feuillard agrafé sous forme de carcasse sans noyau intérieur.In the example illustrated the device in use has been shown to produce a carcass of stapled strip in the form of a carcass without an inner core.

Lorsqu'un tel noyau est prévu il est alimenté, par des moyens non représentés, sans rotation sur lui-même, par un orifice axial 18 du plateau 2 et au travers d'une cavité intérieure du mandrin 10.When such a core is provided, it is supplied, by means not shown, without rotation on itself, by an axial orifice 18 of the plate 2 and through an internal cavity of the mandrel 10.

Pour la réalisation d'une carcasse, on procède à l'enroulement des premières spires sur le mandrin puis une fois que les spires ont atteint le mécanisme d'entrainement 13, celui-ci tire la carcasse formée à une vitesse proportionnelle à la vitesse de rotation du plateau 2 permettant l'obtention en continu d'une structure tubulaire spiralée en feuillard agrafé que l'on enroule autour d'une bobine réceptrice, non représentée, disposée en aval du mécanisme d'entrainement.For the production of a carcass, the first turns are wound on the mandrel, then once the turns have reached the drive mechanism 13, the latter pulls the formed carcass at a speed proportional to the speed of rotation of the plate 2 allowing the continuous production of a spiral tubular structure in stapled strip which is wound around a take-up reel, not shown, arranged downstream of the drive mechanism.

Claims (5)

1. A device for producing continuously a tubular structure formed in a spiral from seamed metal ribbon, comprising firstly a circular table (1) which turns about a horizontal axis coinciding with the longitudinal axis of the tubular structure to be formed, and which includes on one and the same face a supporting member (3) for a feed reel (4) of flat metal ribbon, a set of serrated motor- driven profiling rollers (8) for driving the metal ribbon (5) ans imparting to it a substantially S- or Z-shaped structure, means of guidance (6, 7) of the metal ribbon between the feed reel and the set of profiling rollers, and a tubular mandrel (10) mounted coaxially on the said table, and secondly a mechanism (13) for driving the formed tubular structure longitudinally, arranged downstream of the said revolving table for driving the formed structure towards a receiver reel, characterized by the fact that it cimprises a plurality of presser rollers (11) mounted to run freely and adjustable in position round the mandrel, distributed over the said table (1) round the said mandrel (10) in the vicinity of the axial end of the latter in order to ensure the application against it of the profiled metal ribbon leaving the set of serrated profiling rollers (8) as well as the seaming of the successive turns and the withdrawal of the seamed structure formed, the mandrel (10) being endowed with a speed of rotation opposite to and preferably less than the speed of rotation of the table.
2. A device as in Claim 1, characterized by the fact that the set of serrated profiling rollers (8) is mounted on a support (9) hinged onto the table (2) and able to tilt with respect to the latter.
3. A device as in either of the Claims 1 and 2, characterized by the fact that it comprises between the table (1) and the driving mechanism (13) a set of pressure members (14) such as V-shaped shoes (15) bearing against the periphery of the formed structure so as to tighten the turns of it.
4. A device as in Claim 3, characterized by the fact that the set of pressure members (14) is mounted on a revolving frame (17) endowed with a speed of rotation higher than that of the table (2).
5. A device as in any one of the preceding Claims for the production of a tubular structure formed in a spiral round a central core, characterized by the fact that the mandrel (10) includes an inner cavity into which the core is fed without rotation about itself through an axial orifice (18) in the table (1).
EP84402515A 1983-12-06 1984-12-06 Apparatus for the continuous manufacture of a tubular structure of helically wound interlocking strip material Expired EP0148061B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8319474A FR2555920B1 (en) 1983-12-06 1983-12-06 DEVICE FOR CONTINUOUSLY MAKING A SPIRAL TUBULAR STRUCTURE IN STAPED SHEET
FR8319474 1983-12-06

Publications (2)

Publication Number Publication Date
EP0148061A1 EP0148061A1 (en) 1985-07-10
EP0148061B1 true EP0148061B1 (en) 1988-04-20

Family

ID=9294886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84402515A Expired EP0148061B1 (en) 1983-12-06 1984-12-06 Apparatus for the continuous manufacture of a tubular structure of helically wound interlocking strip material

Country Status (13)

Country Link
US (1) US4597276A (en)
EP (1) EP0148061B1 (en)
JP (1) JPS60187427A (en)
BR (1) BR8406217A (en)
CA (1) CA1250739A (en)
DE (2) DE148061T1 (en)
DK (1) DK156883C (en)
ES (1) ES8603302A1 (en)
FR (1) FR2555920B1 (en)
HU (1) HU193720B (en)
IN (1) IN162500B (en)
MX (1) MX160457A (en)
NO (1) NO162266C (en)

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CN104412020A (en) * 2012-06-29 2015-03-11 挪威国家石油公司 Flexible pipe carcass for controlling flow induced vibration in a riser

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BRPI1101435B1 (en) * 2011-04-06 2020-04-28 Brastec Tech Ltda conductive equipment for materials such as rigid metal strips or tapes for spiral tube forming machines
CN102284552B (en) * 2011-05-18 2013-08-28 合肥神马科技股份有限公司 Irregularly-shaped metal band interlocking and armoring equipment
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CN104942108B (en) * 2014-03-25 2017-03-22 合肥神马科技集团有限公司 Conduction-band straightening and molding device and molding method thereof and lock armoring machine
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IT201900015500A1 (en) * 2019-09-03 2021-03-03 Montrade S P A SPIRAL TUBE SHAPE AND MECHANISM FOR FORMING A TAPE MATERIAL IN THE SHAPE OF A SPIRAL WINDED TUBE
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CN103009063A (en) * 2012-12-04 2013-04-03 三一重工股份有限公司 Silo preparation system and silo cutting method

Also Published As

Publication number Publication date
ES538276A0 (en) 1986-01-01
MX160457A (en) 1990-03-02
FR2555920A1 (en) 1985-06-07
DE148061T1 (en) 1986-04-10
JPS60187427A (en) 1985-09-24
DK156883B (en) 1989-10-16
DK581084A (en) 1985-06-07
NO844864L (en) 1985-06-07
HU193720B (en) 1987-11-30
US4597276A (en) 1986-07-01
CA1250739A (en) 1989-03-07
BR8406217A (en) 1985-10-01
EP0148061A1 (en) 1985-07-10
IN162500B (en) 1988-06-04
DE3470466D1 (en) 1988-05-26
DK581084D0 (en) 1984-12-05
NO162266B (en) 1989-08-28
NO162266C (en) 1989-12-06
FR2555920B1 (en) 1987-05-07
DK156883C (en) 1990-04-09
ES8603302A1 (en) 1986-01-01
HUT38567A (en) 1986-06-30

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