EP0442037B1 - Device to draw-off or guide long items - Google Patents

Device to draw-off or guide long items Download PDF

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Publication number
EP0442037B1
EP0442037B1 EP90119319A EP90119319A EP0442037B1 EP 0442037 B1 EP0442037 B1 EP 0442037B1 EP 90119319 A EP90119319 A EP 90119319A EP 90119319 A EP90119319 A EP 90119319A EP 0442037 B1 EP0442037 B1 EP 0442037B1
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EP
European Patent Office
Prior art keywords
clamping
carriages
guide
clamping carriages
endless
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 - Lifetime
Application number
EP90119319A
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German (de)
French (fr)
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EP0442037A1 (en
Inventor
Gerhard Dr.-Ing. Ziemek
Harry Staschewski
Hermann Dipl.-Ing. Meyer
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Kabelmetal Electro GmbH
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Kabelmetal Electro GmbH
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Publication of EP0442037A1 publication Critical patent/EP0442037A1/en
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Classifications

    • 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/27—Carriages; Drives
    • B21C1/30—Drives, e.g. carriage-traversing mechanisms; Driving elements, e.g. drawing chains; Controlling the drive
    • 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
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/12—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/14—Aprons, endless belts, lattices, or like driven elements

Definitions

  • the present invention relates to a device for pulling and / or guiding elongated goods, such as electrical cables, pipes, ropes and the like, consisting of collets which are moved in the pulling direction by endless chains and are mounted on tensioning carriages and which face one another in pairs transversely to the pulling direction and are mounted in this direction during their movement in the pull-off direction against one another until they come into contact with or away from the material, the tensioning carriages being guided laterally.
  • Devices of the generic type are used for example for the production of thin-walled corrugated metal pipes. This is because they are manufactured, for example, in such a way that a slotted tube is formed from a continuously running thin metal strip in a series of deformation stages, the edges of which are welded together and the smooth tube is then corrugated in a corrugating device. To achieve a flawless weld, it is necessary, in particular when using arc welding, to avoid transmitting the torque exerted by the shaft device to the smooth tube. Twisting the smooth tube results in the migration of the edges of the slotted tube to be welded together out of the welding device.
  • the contact pressure exerted by the collets of the trigger on the circumference of the smooth tube to be removed is dimensioned so that that the pipe to be removed is firmly guided and secured against rotation by the Weller torque, but on the other hand the smooth pipe is not pressed in, which can occur with very thin sheets with a correspondingly high contact pressure of the collets.
  • a known device provides that between the welding device and the corrugating device there is a trigger which secures the welded pipe against rotation and which consists of endless chains and collets attached to them at such intervals, that the tube is gripped by at least one collet.
  • the collets have clamping jaws, which in turn are mounted on so-called clamping carriages.
  • the tensioning carriages are directly attached to the endless chains, so that every component of motion that originates from the chains or their drives can be transmitted to the tensioning carriages and from these to the clamping jaws.
  • a measure known to create some compensation (“Communication cables with welded and corrugated metallic sheaths" by Dr. Carl Andresen and Dimitri R.
  • the fixation of the clamping carriages consists only in the attachment to the endless chains, which is usually not sufficient, however prevent unwanted impacts, for example due to increased speed of the tensioning carriage in the region reversing its direction of movement, from being transmitted to the material passing through. This is particularly problematic in cases where, as in high-frequency cable technology, even slight deformations in the continuous material become electrical Can cause reflections.
  • the invention has for its object to find a way that the circulation of the clamping carriage and thus the circulation of the collets is going on at a constant speed. In this case, interference factors originating from or transmitted by the chain drives or the chains themselves are to be avoided, if appropriate.
  • the lateral guide consists of endless guide rails extending along the entire orbit of the tensioning carriage. The result is that even in the reversal areas a uniform movement of the clamping carriage and with them the clamping jaws is guaranteed.
  • the guide rails have a profile which is U-shaped in cross section.
  • Guide rollers which are arranged on each tensioning carriage on the side facing the respective guide rail, expediently engage in this U-shaped profile. This measure entails a guide secured against tipping or twisting of the tensioning carriage.
  • the guide rail can be arranged as a prefabricated U-profile in a continuous piece on the straight line and divided into individual pieces in the area of the deflection of the endless chains.
  • a further advantageous embodiment of the invention results, however, when the guide rails are formed in several parts, ie the cross section of the guide rail z. B. consists of two L-shaped and attached to the housing of the trigger device individual profiles. This measure makes assembly considerably easier, it also facilitates the production of the guide rails, in particular, however, if, according to a further inventive idea, these Guide rails have special treads for guide rollers engaging in the U-shaped profile.
  • the guide rollers can be arranged on the tensioning carriage so that their axes are parallel to the housing axis and therefore engage in the U-shaped profile of the guide rail in such a way that they are only partially covered by the profile during the movement of the carriage in the withdrawal direction.
  • An advantageous variant provided in the implementation of the invention is that the axes of the guide rollers run parallel to the legs of the U-shaped profile, i. H. that the bilateral legs of the U-shaped profile form treads for the guide rollers.
  • these treads can also be coated, for example plastic-coated, in order to reduce the rolling resistance of the tensioning carriages on or in the guide rails, but at the same time also to ensure, through a certain damping effect, that the material passing through is free of any mechanical impacts to be led.
  • Another measure according to the invention also leads in this direction, which consists in the fact that the guide rails on both sides are the sole supports for the tensioning carriages. This eliminates from the outset that due to the kinematic sequence of movements of the chain links, mechanical shock impulses are exerted on the tensioning carriages. Lengthening of the endless chains during operation no longer has a negative influence on the uniform movement of the tensioning carriages achieved by the invention.
  • the endless chains themselves are freely movable below the associated tension carts.
  • Separate tension elements for example tie rods, are used for the frictional connection between the endless chains causing the movement of the tensioning carriages and the tensioning carriages themselves. which are connected at their ends both to the tensioning wagons and to the respective endless chain and are rotatably or pivotably mounted at these connection points. The result of this is that the tensioning carriages can easily pass through the path predetermined by the endless guide rails.
  • FIGS. 3 and 4 show an overall view of the trigger device according to the invention in two views, FIGS. 3 and 4 details of the invention.
  • the extraction device 1 is used, for example, to pull a tube 2 longitudinally welded from a strip in a welding device, not shown, and to feed a corrugating device, also not shown, when the initially smooth tube 2 is to be transferred to the corrugated state.
  • so-called clamping jaws 3 are used, as shown in FIG. 2, which are mounted on clamping carriages 4, which in turn are moved on the illustrated path by endless chains 5 .
  • the clamping jaws 3a and 3b which are provided with guide jaws in accordance with the size of the tube 2 passing through, also perform movements against one another, always when they are brought towards one another to enclose the tube 2 and, after the connection with the tube is released, are moved away from one another again .
  • the guide rail 6 is designed so that the jaws 3a and 3b are brought together and so that Grip the continuous pipe firmly.
  • Deflection wheels 8 and 9 serve to guide the endless chains, the deflection wheel 9 being driven by the drive 10 by means of an intermediate gear 11.
  • the guide rail 12 which extends along the entire orbit of the tensioning carriage, is used to achieve a movement sequence that is as uniform as possible and to avoid mechanical shocks, which are particularly noticeable on the continuous tube 2 when it is designed as a thin-walled metal tube.
  • This guide rail 12 is fastened to the machine housing 13 and, as can be seen in particular from FIG. 3, is U-shaped in cross section, in the exemplary embodiment this guide rail 12 is also formed in two parts. It consists of the partial rails 12a and 12b.
  • the tensioning carriage 4, which carries clamping jaws 3a and 3b which can be moved transversely to the direction in which the goods pass 2, is carried solely by the guide rails 12.
  • the guide roller 14 protrudes into the guide rail 12, which rolls on the running surfaces 15 and is connected to the tensioning carriage 4 via a bolt connection 16.
  • the guide rail 6 is used to bring the clamping jaws 3a and 3b together
  • the opening wedge 17 is used to separate the closed clamping jaws 3a and 3b, which engages between the pins 18 of the clamping jaws arranged on the underside of the clamping jaws and presses them apart.
  • This opening wedge 17 can be formed in one or more parts, it can advantageously be adapted in its outer dimensions determining the opening path to the continuous tube 2.
  • the opening width of the clamping jaws 3a and 3b that is currently required can be set, dead times due to unused width Opening paths are avoided by the invention.
  • the roller guides 19 and 20 are advantageously adjustable in the clamping jaws 3a and 3b. Compared to the tensioning carriage 4, the endless chain 5 is guided in a freely movable manner below the tensioning carriage.
  • the endless chains 5 serve as tension elements for the tensioning carriages 4 on the predetermined roller conveyor. So that the endless chains can perform this task without the tensioning carriages, as is provided in known arrangements, directly attached to the chains themselves, as shown in FIG. 4, separate tie rods 21 are provided, on the one hand on the tensioning carriage 4 and on the other are rotatably or pivotably mounted on the endless chain 5.
  • the bolt connections 22 and 23 serve this purpose. Also in the area of the idling of the collets, i. H. in the curved part of the endless guideway, the prestressing carriages are thus safely guided and are moved uniformly, and the exact guiding of the prestressing carriages in the intended guideway ensures uniform circulation. This effect enables higher production speeds, as is required, for example, in the production of high-frequency cables with a longitudinally welded tube as the outer conductor.

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Metal Extraction Processes (AREA)
  • Vending Machines For Individual Products (AREA)
  • Clamps And Clips (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Non-Mechanical Conveyors (AREA)
  • Chain Conveyers (AREA)
  • Framework For Endless Conveyors (AREA)

Abstract

For drawing off and/or guiding elongate articles, such as electrical cables, tubes, ropes and the like, there are collet chucks (3a;3b) moved in the drawing-off direction by endless chains (5) and mounted on clamping carriages (4). These collet chucks are located opposite one another in pairs transversely relative to the drawing-off direction and in this direction are mounted so as, during their movement in the drawing-off direction, to be movable relative to one another up against the article (2) or away from this, the clamping carriages (4) being guided laterally. To make the rotation uniform, the lateral guide consists of endless guide rails (12) extending along the entire path of rotation of the clamping carriages (4).

Description

Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zum Abziehen und/oder Führen von langgestrecktem Gut, wie elektrische Kabel, Rohre, Seile und dergl., bestehend aus von endlosen Ketten in Abzugsrichtung bewegten und auf Spannwagen gelagerten Spannzangen, die quer zur Abzugsrichtung einander paarweise gegenüberstehen und in dieser Richtung während ihrer Bewegung in Abzugsrichtung gegeneinander bis zur Anlage an dem Gut bzw. von diesem weg bewegbar gelagert sind, wobei die Spannwagen seitlich geführt sind.The present invention relates to a device for pulling and / or guiding elongated goods, such as electrical cables, pipes, ropes and the like, consisting of collets which are moved in the pulling direction by endless chains and are mounted on tensioning carriages and which face one another in pairs transversely to the pulling direction and are mounted in this direction during their movement in the pull-off direction against one another until they come into contact with or away from the material, the tensioning carriages being guided laterally.

Vorrichtungen der gattungsgemäßen Art werden beispielsweise verwendet zur Herstellung dünnwandiger gewellter Metallrohre. Diese werden nämlich beispielsweise so hergestellt, daß aus einem kontinuierlich durchlaufenden dünnen Metallband in einer Reihe von Verformungsstufen ein Schlitzrohr geformt, dessen Kanten miteinander verschweißt und das Glattrohr anschließend in einer Welleinrichtung gewellt wird. Zur Erzielung einer einwandfreien Schweißnaht ist es insbesondere bei der Anwendung der Lichtbogenschweißung erforderlich, daß eine Übertragung des von der Welleinrichtung ausgeübten Drehmomentes auf das Glattrohr vermieden wird. Ein Verdrehen des Glattrohres hat nämlich die Auswanderung der miteinander zu verschweißenden Kanten des Schlitzrohres aus der Schweißeinrichtung heraus zur Folge. Der von den Spannzangen des Abzuges auf den Umfang des abzuziehenden Glattrohres ausgeübte Anpreßdruck ist dabei so bemessen, daß zwar das abzuziehende Rohr fest geführt und gegen Verdrehung durch das Weller-Drehmoment gesichert ist, daß aber andererseits das Glattrohr nicht eingedrückt wird, was bei sehr dünnen Blechen bei entsprechend hohem Anpreßdruck der Spannzangen durchaus eintreten kann.Devices of the generic type are used for example for the production of thin-walled corrugated metal pipes. This is because they are manufactured, for example, in such a way that a slotted tube is formed from a continuously running thin metal strip in a series of deformation stages, the edges of which are welded together and the smooth tube is then corrugated in a corrugating device. To achieve a flawless weld, it is necessary, in particular when using arc welding, to avoid transmitting the torque exerted by the shaft device to the smooth tube. Twisting the smooth tube results in the migration of the edges of the slotted tube to be welded together out of the welding device. The contact pressure exerted by the collets of the trigger on the circumference of the smooth tube to be removed is dimensioned so that that the pipe to be removed is firmly guided and secured against rotation by the Weller torque, but on the other hand the smooth pipe is not pressed in, which can occur with very thin sheets with a correspondingly high contact pressure of the collets.

Um das zu erreichen, sieht eine bekannte Vorrichtung (AT-PS 238 013) vor, daß zwischen der Schweißeinrichtung und der Wellvorrichtung ein das verschweißte Rohr gegen Verdrehung sichernder Abzug angeordnet ist, der aus endlosen Ketten und an diesen in solchen Abständen befestigten Spannzangen besteht, daß das Rohr jeweils von mindestens einer Spannzange erfaßt wird. Die Spannzangen weisen Spannbacken auf, die ihrerseits auf sogenannten Spannwagen gelagert sind. Die Spannwagen sind auf den endlosen Ketten unmittelbar befestigt, so daß jede Bewegungskomponente, die von den Ketten bzw. deren Antriebe ausgeht, auf den Spannwagen und von diesen auf die Spannbacken übertragen werden kann. Zwar schafft hier einen gewissen Ausgleich eine ebenfalls bekannte Maßnahme ("Communication cables with welded and corrugated metallic sheaths" by Dr. Carl Andresen and Dimitri R. Stein, Asbury Park, N.Y. November 28, 1962), nach der in dem Bereich, in dem die beiderseitigen Spannbacken das Gut zur Führung umfassen, zur seitlichen Führung der Spannwagen gesonderte Führungsschienen angeordnet sind. Nachdem die das Gut umfassenden Spannzangen jedoch in ihre Ausgangslage zurück gekehrt sind und an der Unterseite der endlosen Ketten zur Einlaufseite des Gutes zurückgeführt werden, besteht die Fixierung der Spannwagen lediglich in der Befestigung auf den endlosen Ketten, die in der Regel jedoch nicht ausreicht, zu verhindern, daß unerwünschte Stöße, beispielsweise durch erhöhte Geschwindigkeit der Spannwagen im Bereich der Umkehrung ihrer Bewegungsrichtung, auf das durchlaufende Gut übertragen werden. Besonders problemhaft ist dies in solchen Fällen, wo, wie in der Hochfrequenzkabeltechnik, schon leichte Verformungen im durchlaufenden Gut zu elektrischen Reflexionen führen können.In order to achieve this, a known device (AT-PS 238 013) provides that between the welding device and the corrugating device there is a trigger which secures the welded pipe against rotation and which consists of endless chains and collets attached to them at such intervals, that the tube is gripped by at least one collet. The collets have clamping jaws, which in turn are mounted on so-called clamping carriages. The tensioning carriages are directly attached to the endless chains, so that every component of motion that originates from the chains or their drives can be transmitted to the tensioning carriages and from these to the clamping jaws. Admittedly, a measure known to create some compensation ("Communication cables with welded and corrugated metallic sheaths" by Dr. Carl Andresen and Dimitri R. Stein, Asbury Park, NY November 28, 1962), according to the area in which the clamping jaws on both sides include the material for guidance, separate guide rails are arranged for lateral guidance of the clamping carriage. However, after the collets comprising the material have returned to their starting position and are returned on the underside of the endless chains to the infeed side of the material, the fixation of the clamping carriages consists only in the attachment to the endless chains, which is usually not sufficient, however prevent unwanted impacts, for example due to increased speed of the tensioning carriage in the region reversing its direction of movement, from being transmitted to the material passing through. This is particularly problematic in cases where, as in high-frequency cable technology, even slight deformations in the continuous material become electrical Can cause reflections.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Möglichkeit zu finden, daß der Umlauf der Spannwagen und damit der Umlauf der Spannzangen mit gleichmäßiger Geschwindigkeit vor sich geht. Dabei sollen gegebenenfalls von den Kettenantrieben oder den Ketten selbst herrührende oder von diesen übertragene Störfaktoren vermieden werden.Based on this prior art, the invention has for its object to find a way that the circulation of the clamping carriage and thus the circulation of the collets is going on at a constant speed. In this case, interference factors originating from or transmitted by the chain drives or the chains themselves are to be avoided, if appropriate.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die seitliche Führung aus längs der gesamten Umlaufbahn der Spannwagen sich erstreckenden endlosen Führungsschienen besteht. Das führt dazu, daß auch in den Umkehrbereichen eine gleichförmige Bewegung der Spannwagen und mit ihnen der Spannbacken gewährleistet ist.This object is achieved according to the invention in that the lateral guide consists of endless guide rails extending along the entire orbit of the tensioning carriage. The result is that even in the reversal areas a uniform movement of the clamping carriage and with them the clamping jaws is guaranteed.

In Durchführung des Erfindungsgedankens wird man zweckmäßig so vorgehen, daß die Führungsschienen ein im Querschnitt U-förmiges Profil aufweisen. In dieses U-förmige Profil greifen zweckmäßig Führungsrollen, die an jedem Spannwagen auf der der jeweiligen Führungsschiene zugekehrten Seite angeordnet sind, ein. Diese Maßnahme bringt eine gegen Kippen oder Verdrehen des Spannwagens gesicherte Führung mit sich.In carrying out the idea of the invention, one will expediently proceed in such a way that the guide rails have a profile which is U-shaped in cross section. Guide rollers, which are arranged on each tensioning carriage on the side facing the respective guide rail, expediently engage in this U-shaped profile. This measure entails a guide secured against tipping or twisting of the tensioning carriage.

Die Führungsschiene kann als vorgefertigtes U-Profil in einem durchgehenden Stück auf der geraden Strecke und in Einzelstücke aufgeteilt im Bereich der Umlenkung der endlosen Ketten angeordnet sein. Eine weitere vorteilhafte Ausgestaltung der Erfindung ergibt sich jedoch dann, wenn die Führungsschienen mehrteilig ausgebildet sind, d. h. der Querschnitt der Führungsschiene z. B. aus zwei L-förmigen und an dem Gehäuse der Abzugsvorrichtung angebrachten Einzelprofilen besteht. Diese Maßnahme erleichtert die Montage wesentlich, sie erleichtert die Herstellung der Führungsschienen insbesondere aber auch dann, wenn nach einem weiteren Erfindungsgedanken diese Führungsschienen besondere Laufflächen für in das U-förmige Profil eingreifende Führungsrollen aufweisen.The guide rail can be arranged as a prefabricated U-profile in a continuous piece on the straight line and divided into individual pieces in the area of the deflection of the endless chains. A further advantageous embodiment of the invention results, however, when the guide rails are formed in several parts, ie the cross section of the guide rail z. B. consists of two L-shaped and attached to the housing of the trigger device individual profiles. This measure makes assembly considerably easier, it also facilitates the production of the guide rails, in particular, however, if, according to a further inventive idea, these Guide rails have special treads for guide rollers engaging in the U-shaped profile.

Die Führungsrollen können am Spannwagen so angeordnet sein, daß ihre Achsen parallel zur Gehäuseachse stehen und daher so in das U-förmige Profil der Führungsschiene eingreifen, daß sie nur teilweise von dem Profil bei der Bewegung des Wagens in Abzugsrichtung abgedeckt werden. Eine vorteilhafte und in Durchführung der Erfindung vorgesehene Variante ist die, daß die Achsen der Führungsrollen zu den Schenkeln des U-förmigen Profils parallel verlaufen, d. h. daß die beiderseitigen Schenkel des U-förmigen Profils Laufflächen für die Führungsrollen bilden. Diese Laufflächen können in Weiterführung des Erfindungsgedankens auch beschichtet, beispielsweise kunststoffbeschichtet, sein, um einmal den Abrollwiderstand der Spannwagen auf bzw. in den Führungsschienen zu vermindern, gleichzeitig aber auch durch einen gewissen Dämpfungseffekt dafür zu sorgen, daß das durchlaufende Gut frei von irgendwelchen mechanischen Stößen geführt wird.The guide rollers can be arranged on the tensioning carriage so that their axes are parallel to the housing axis and therefore engage in the U-shaped profile of the guide rail in such a way that they are only partially covered by the profile during the movement of the carriage in the withdrawal direction. An advantageous variant provided in the implementation of the invention is that the axes of the guide rollers run parallel to the legs of the U-shaped profile, i. H. that the bilateral legs of the U-shaped profile form treads for the guide rollers. In continuation of the inventive concept, these treads can also be coated, for example plastic-coated, in order to reduce the rolling resistance of the tensioning carriages on or in the guide rails, but at the same time also to ensure, through a certain damping effect, that the material passing through is free of any mechanical impacts to be led.

In diese Richtung führt auch eine weitere erfindungsgemäße Maßnahme, die darin besteht, daß die beiderseitigen Führungsschienen alleinige Träger für die Spannwagen sind. Damit wird von vornherein ausgeschaltet, daß durch den kinematischen Bewegungsablauf der Kettenglieder bedingt mechanische Stoßimpulse auf die Spannwagen ausgeübt werden. Im Laufe des Betriebes erfolgende Längungen der endlosen Ketten haben auf die durch die Erfindung erzielte gleichförmige Bewegung der Spannwagen keinen negativen Einfluß mehr.Another measure according to the invention also leads in this direction, which consists in the fact that the guide rails on both sides are the sole supports for the tensioning carriages. This eliminates from the outset that due to the kinematic sequence of movements of the chain links, mechanical shock impulses are exerted on the tensioning carriages. Lengthening of the endless chains during operation no longer has a negative influence on the uniform movement of the tensioning carriages achieved by the invention.

Die endlosen Ketten selbst sind unterhalb der zugehörigen Spannwagen gegenüber diesen frei bewegbar geführt. Zum Kraftschluß zwischen den die Bewegung der Spannwagen bewirkenden endlosen Ketten und den Spannwagen selbst dienen gesonderte Zugelemente, beispielsweise Zugstangen, die an ihren Enden sowohl mit den Spannwagen als auch mit der jeweiligen endlosen Kette verbunden sind und an diesen Verbindungsstellen dreh- oder schwenkbar gelagert sind. Dies hat zur Folge, daß die durch die endlosen Führungsschienen vorgegebene Bahn von den Spannwagen problemlos durchlaufen werden kann.The endless chains themselves are freely movable below the associated tension carts. Separate tension elements, for example tie rods, are used for the frictional connection between the endless chains causing the movement of the tensioning carriages and the tensioning carriages themselves. which are connected at their ends both to the tensioning wagons and to the respective endless chain and are rotatably or pivotably mounted at these connection points. The result of this is that the tensioning carriages can easily pass through the path predetermined by the endless guide rails.

Die Erfindung sei anhand der in den Fig. 1 bis 4 dargestellten Ausführungsbeispiele näher erläutert.The invention will be explained in more detail with reference to the exemplary embodiments shown in FIGS. 1 to 4.

Die Fig. 1 und 2 zeigen eine Gesamtdarstellung der erfindungsgemäßen Abzugseinrichtung in zwei Ansichten, die Fig. 3 und 4 Einzelheiten der Erfindung.1 and 2 show an overall view of the trigger device according to the invention in two views, FIGS. 3 and 4 details of the invention.

Die Abzugseinrichtung 1 dient beispielsweise dazu, ein in einer nicht dargestellten Schweißvorrichtung aus einem Band längsnahtgeschweißtes Rohr 2 in Pfeilrichtung abzuziehen und einer ebenfalls nicht dargestellten Wellvorrichtung zuzuführen, wenn das zunächst glatte Rohr 2 in den gewellten Zustand überführt werden soll. Um den Abzug von der Schweißvorrichtung möglichst kräftefrei durchführen zu können, dienen, wie dargestellt, sogenannte Spannbacken 3, die, wie aus der Fig. 2 ersichtlich, auf Spannwagen 4 montiert sind, die ihrerseits durch umlaufende endlose Ketten 5 auf der dargestellten Bahn bewegt werden. Während dieses Umlaufes führen die entsprechend der Größe des durchlaufenden Rohres 2 mit Führungsbacken versehenen Spannbacken 3a und 3b auch gegeneinander Bewegungen aus, und zwar immer dann, wenn sie zum Umfassen des Rohres 2 aufeinander zugeführt und nach Lösen der Verbindung mit dem Rohr wieder voneinander weggeführt werden. Erreicht wird dies durch die in der Fig. 1 mit 6 bezeichnete Führungsschiene, die, wie am eingangsseitigen Ende der Abzugsvorrichtung 1 dargestellt, eine Aufweitung 7 besitzt, so daß die Spannbacken 3a und 3b das Rohr 2 noch nicht umschlossen halten. Im weiteren Verlauf ist die Führungsschiene 6 so ausgebildet, daß die Backen 3a und 3b zusammengeführt werden und so das durchlaufende Rohr fest umfassen. Am Ende des gradlinigen Verlaufes dieser Strecke ist dann die Führungsschiene 6 wieder aufgeweitet, so daß die Spannbacken das Rohr 2 freigeben und, wie aus der Fig. 2 ersichtlich, im unteren Teil der Abzugsvorrichtung 1 zum Eingang zurück geführt werden. Zur Führung der endlosen Ketten dienen Umlenkräder 8 und 9, wobei das Umlenkrad 9 vom Antrieb 10 mittels eines Zwischengetriebes 11 angetrieben wird.The extraction device 1 is used, for example, to pull a tube 2 longitudinally welded from a strip in a welding device, not shown, and to feed a corrugating device, also not shown, when the initially smooth tube 2 is to be transferred to the corrugated state. In order to be able to carry out the deduction from the welding device with as little force as possible, so-called clamping jaws 3 are used, as shown in FIG. 2, which are mounted on clamping carriages 4, which in turn are moved on the illustrated path by endless chains 5 . During this cycle, the clamping jaws 3a and 3b, which are provided with guide jaws in accordance with the size of the tube 2 passing through, also perform movements against one another, always when they are brought towards one another to enclose the tube 2 and, after the connection with the tube is released, are moved away from one another again . This is achieved by the guide rail designated by 6 in FIG. 1, which, as shown at the input end of the extraction device 1, has an expansion 7, so that the clamping jaws 3a and 3b do not yet hold the tube 2 enclosed. In the further course, the guide rail 6 is designed so that the jaws 3a and 3b are brought together and so that Grip the continuous pipe firmly. At the end of the straight course of this route, the guide rail 6 is then widened again, so that the clamping jaws release the tube 2 and, as can be seen from FIG. 2, are guided back to the entrance in the lower part of the extraction device 1. Deflection wheels 8 and 9 serve to guide the endless chains, the deflection wheel 9 being driven by the drive 10 by means of an intermediate gear 11.

Zur Erzielung eines möglichst gleichförmigen Bewegungsablaufes und zur Vermeidung von mechanischen Stößen, die sich insbesondere dann auf dem durchlaufenden Rohr 2 bemerkbar machen, wenn dieses als dünnwandiges Metallrohr ausgebildet ist, dient erfindungsgemäß die Führungsschiene 12, die sich längs der gesamten Umlaufbahn der Spannwagen erstreckt. Diese Führungsschiene 12 ist am Maschinengehäuse 13 befestigt und ist, wie insbesondere aus der Fig. 3 hervorgeht, im Querschnitt U-förmig ausgebildet, wobei im Ausführungsbeispiel diese Führungsschiene 12 auch zweiteilig ausgebildet ist. Sie besteht nämlich aus den Teilschienen 12a und 12b. Der Spannwagen 4, der quer zur Durchlaufrichtung des Gutes 2 bewegbare Spannbacken 3a und 3b trägt, wird allein von den Führungsschienen 12 getragen. Zu diesem Zweck ragt in die Führungsschiene 12 die Führungsrolle 14 hinein, die auf den Laufflächen 15 abrollt und über eine Bolzenverbindung 16 mit dem Spannwagen 4 verbunden ist. Zum Zusammenführen der Spannbacken 3a und 3b dient entsprechend der Fig. 1 die Führungsschiene 6, zur Trennung der geschlossenen Spannbacken 3a und 3b dient der Öffnungskeil 17, der zwischen die an der Unterseite der Spannbacken angeordneten Stifte 18 der Spannbacken greift und diese auseinanderdrückt. Dieser Öffnungskeil 17 kann ein- oder mehrteilig ausgebildet sein, er kann vorteilhaft in seinen äußeren, den Öffnungsweg bestimmenden Abmessungen dem durchlaufenden Rohr 2 angepaßt sein. Damit ist die gerade notwendige Öffnungsweite der Spannbacken 3a und 3b einstellbar, Totzeiten durch ungenutzte weite Öffnungswege sind durch die Erfindung vermieden. Die Rollenführungen 19 und 20 sind in den Spannbacken 3a und 3b vorteilhaft verstellbar gelagert. Gegenüber dem Spannwagen 4 an sich frei bewegbar geführt ist die endlose Kette 5, unterhalb des Spannwagens angeordnet.According to the invention, the guide rail 12, which extends along the entire orbit of the tensioning carriage, is used to achieve a movement sequence that is as uniform as possible and to avoid mechanical shocks, which are particularly noticeable on the continuous tube 2 when it is designed as a thin-walled metal tube. This guide rail 12 is fastened to the machine housing 13 and, as can be seen in particular from FIG. 3, is U-shaped in cross section, in the exemplary embodiment this guide rail 12 is also formed in two parts. It consists of the partial rails 12a and 12b. The tensioning carriage 4, which carries clamping jaws 3a and 3b which can be moved transversely to the direction in which the goods pass 2, is carried solely by the guide rails 12. For this purpose, the guide roller 14 protrudes into the guide rail 12, which rolls on the running surfaces 15 and is connected to the tensioning carriage 4 via a bolt connection 16. 1, the guide rail 6 is used to bring the clamping jaws 3a and 3b together, and the opening wedge 17 is used to separate the closed clamping jaws 3a and 3b, which engages between the pins 18 of the clamping jaws arranged on the underside of the clamping jaws and presses them apart. This opening wedge 17 can be formed in one or more parts, it can advantageously be adapted in its outer dimensions determining the opening path to the continuous tube 2. The opening width of the clamping jaws 3a and 3b that is currently required can be set, dead times due to unused width Opening paths are avoided by the invention. The roller guides 19 and 20 are advantageously adjustable in the clamping jaws 3a and 3b. Compared to the tensioning carriage 4, the endless chain 5 is guided in a freely movable manner below the tensioning carriage.

Wie bereits ausgeführt dienen die endlosen Ketten 5 als Zugelemente für die Spannwagen 4 auf der vorgegebenen Rollenbahn. Damit die endlosen Ketten diese Aufgabe ausführen können, ohne daß die Spannwagen, wie bei bekannten Anordnungen vorgesehen, unmittelbar auf den Ketten selbst befestigt sind, sind, wie aus der Fig. 4 ersichtlich, gesonderte Zugstangen 21 vorgesehen, die einerseits am Spannwagen 4, andererseits an der endlosen Kette 5 dreh- oder schwenkbar gelagert sind. Hierzu dienen die Bolzenverbindungen 22 und 23. Auch im Bereich des Leerlaufens der Spannzangen, d. h. im gekrümmten Teil der endlosen Führungsbahn, sind die Spannwagen damit sicher geführt und werden gleichförmig bewegt, durch die exakte Führung der Spannwagen in der vorgesehenen Führungsbahn ist ein gleichmäßiger Umlauf gewährleistet. Durch diesen Effekt sind höhere Fertigungsgeschwindigkeiten möglich, wie es beispielsweise bei der Herstellung von Hochfrequenzkabeln mit einem längsnahtgeschweißten Rohr als Außenleiter gefordert wird.As already stated, the endless chains 5 serve as tension elements for the tensioning carriages 4 on the predetermined roller conveyor. So that the endless chains can perform this task without the tensioning carriages, as is provided in known arrangements, directly attached to the chains themselves, as shown in FIG. 4, separate tie rods 21 are provided, on the one hand on the tensioning carriage 4 and on the other are rotatably or pivotably mounted on the endless chain 5. The bolt connections 22 and 23 serve this purpose. Also in the area of the idling of the collets, i. H. in the curved part of the endless guideway, the prestressing carriages are thus safely guided and are moved uniformly, and the exact guiding of the prestressing carriages in the intended guideway ensures uniform circulation. This effect enables higher production speeds, as is required, for example, in the production of high-frequency cables with a longitudinally welded tube as the outer conductor.

Claims (12)

  1. Device (1) for pulling-off and/or guiding elongated material (2), such as electrical cables, pipes, ropes and the like, consisting of clamping jaws (3), which are moved by endless chains (5) in the pulling-off direction, are supported on clamping carriages (4), are opposite one another in pairs transversely with respect to the pulling-off direction and are supported with respect to one another in this direction, during their movement in the pulling-off direction, until they come into contact with the material and/or so that they can be moved away from said material, the clamping carriages (4) being guided at the sides, characterised in that the side guidance consists of endless guide rails (12) which extend along the entire circulation path of the clamping carriages (4).
  2. Device according to Claim 1, characterised in that the guide rails (12) have a profile with a U-shaped cross-section.
  3. Device according to Claim 1 or 2, characterised in that the guide rails (12) are constructed in a plurality of pieces.
  4. Device according to Claim 1, or one of the following claims, characterised in that, on the side facing the respective guide rail (12), each clamping carriage (4) has guide rollers (14) which engage in the U-shaped profile of the guide rail.
  5. Device according to Claim 4, characterised in that the axes of the guide rollers (14) run parallel to the limbs of the U-shaped profile.
  6. Device according to Claim 4 or 5, characterised in that the limbs on both sides of the U-shaped profile have track surfaces (15) for the guide rollers.
  7. Device according to Claim 6, characterised in that the track surfaces (15) of the guide rollers and/or of the guide rails (12) are plastic-coated.
  8. Device according to Claim 1 or one of the following claims, characterised in that the track rails (12) on both sides are the only supports for the clamping carriages (4).
  9. Device according to Claim 1 or one of the following claims, characterised in that the endless chains (5) are traction elements for the clamping carriages (4).
  10. Device according to Claim 9, characterised in that the clamping carriages (4) are connected to the associated endless chain via traction rods (21).
  11. Device according to Claim 10, characterised in that the traction rods (21) are supported at their ends such that they can rotate or pivot.
  12. Device according to Claim 1 or one of the following claims, characterised in that the endless chains (5) are guided underneath the associated clamping carriages (4) such that they can move freely with respect thereto.
EP90119319A 1990-02-13 1990-10-09 Device to draw-off or guide long items Expired - Lifetime EP0442037B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4004312A DE4004312A1 (en) 1990-02-13 1990-02-13 DEVICE FOR DRAWING AND / OR LEADING LONG STRETCHED GOODS
DE4004312 1990-02-13

Publications (2)

Publication Number Publication Date
EP0442037A1 EP0442037A1 (en) 1991-08-21
EP0442037B1 true EP0442037B1 (en) 1993-08-11

Family

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Application Number Title Priority Date Filing Date
EP90119319A Expired - Lifetime EP0442037B1 (en) 1990-02-13 1990-10-09 Device to draw-off or guide long items

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EP (1) EP0442037B1 (en)
JP (1) JP3054203B2 (en)
CN (1) CN1026679C (en)
AT (1) ATE92884T1 (en)
DE (2) DE4004312A1 (en)
DK (1) DK0442037T3 (en)
ES (1) ES2044364T3 (en)
FI (1) FI92384C (en)
RU (1) RU1827364C (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP2243567A1 (en) 2009-04-21 2010-10-27 Nexans Device for producing pipes corrugated at right angles to their cross-section
US11258223B1 (en) 2019-08-15 2022-02-22 Design Ready Controls, Inc. Automated flexible strand feeder assembly

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Publication number Priority date Publication date Assignee Title
CN1063375C (en) * 1995-04-26 2001-03-21 倪雪和 plane reciprocating continuous welding gun
IT1310544B1 (en) * 1999-03-10 2002-02-18 Enzo Coccolo CHAIN DEVICE FOR DRAWING TOWING
DE102004047048A1 (en) * 2004-09-28 2006-04-06 Otto Bihler Handels-Beteiligungs-Gmbh feed device
FR2888838B1 (en) * 2005-07-22 2007-10-05 Saint Gobain Vetrotex INSTALLATION OF AUTOMATIC SOCKET
CN101284613B (en) * 2007-12-14 2011-11-30 益阳橡胶塑料机械集团有限公司 Wire cable homing mechanism of wire cable conveying belt production line
CN101475086B (en) * 2009-01-09 2010-12-29 广东三和管桩有限公司 Pipe die conveyor for tubular pile production process
CN103482408B (en) * 2012-06-11 2016-08-03 顾严煌 A kind of cable construction transfer vehicle
CN105645173A (en) * 2016-03-11 2016-06-08 宁波思进机械股份有限公司 Linear feed mechanism
US10421144B2 (en) 2017-08-03 2019-09-24 Esab Ab Welding wire feeder device
CN109720931A (en) * 2018-11-20 2019-05-07 中材科技股份有限公司 A kind of horizontal traction mechanism
CN109748139B (en) * 2018-12-19 2021-02-12 天长市富信电子有限公司 Signal transmission line collecting device
CN110303061B (en) * 2019-06-24 2020-08-11 江西凯顺科技有限公司 Thing networking copper aluminium bar drawbench
KR102169145B1 (en) * 2019-12-27 2020-10-23 주식회사 미성 Traction device for manufacturing composite pipe
CN112680846A (en) * 2020-12-07 2021-04-20 安徽颍上县富颍纺织有限公司 Cotton yarn with good stretch-resistant effect

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AT238013B (en) * 1961-05-16 1965-01-25 Hackethal Draht & Kabelwerk Ag Device for the production of thin-walled, corrugated metal pipes
US3351034A (en) * 1964-09-29 1967-11-07 Continental Can Co Towing and cutting device
DE2805335A1 (en) * 1978-02-09 1979-08-16 Willi Oppermann Continuous advance device for tubes during drawing process - uses by two=part clamping jaws on driven endless chain
AT373175B (en) * 1981-11-20 1983-12-27 Tsni I Proektnoexperimentalny DEVICE FOR FEEDING STAFF MATERIAL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2243567A1 (en) 2009-04-21 2010-10-27 Nexans Device for producing pipes corrugated at right angles to their cross-section
US11258223B1 (en) 2019-08-15 2022-02-22 Design Ready Controls, Inc. Automated flexible strand feeder assembly

Also Published As

Publication number Publication date
FI92384B (en) 1994-07-29
RU1827364C (en) 1993-07-15
FI92384C (en) 1994-11-10
EP0442037A1 (en) 1991-08-21
ATE92884T1 (en) 1993-08-15
DE59002321D1 (en) 1993-09-16
DK0442037T3 (en) 1993-11-22
JP3054203B2 (en) 2000-06-19
CN1026679C (en) 1994-11-23
FI910680A (en) 1991-08-14
CN1054049A (en) 1991-08-28
FI910680A0 (en) 1991-02-12
ES2044364T3 (en) 1994-01-01
DE4004312A1 (en) 1991-08-14
JPH04288921A (en) 1992-10-14

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