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CH416772A - Installation comprising a rolling mill for electric cable - Google Patents

Installation comprising a rolling mill for electric cable

Info

Publication number
CH416772A
CH416772A CH949265A CH949265A CH416772A CH 416772 A CH416772 A CH 416772A CH 949265 A CH949265 A CH 949265A CH 949265 A CH949265 A CH 949265A CH 416772 A CH416772 A CH 416772A
Authority
CH
Switzerland
Prior art keywords
rolling mill
speed
rollers
electric cable
installation
Prior art date
Application number
CH949265A
Other languages
French (fr)
Inventor
Maillefer Charles
Original Assignee
Maillefer Sa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maillefer Sa filed Critical Maillefer Sa
Priority to CH949265A priority Critical patent/CH416772A/en
Publication of CH416772A publication Critical patent/CH416772A/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0006Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Description

Installation comprenant un laminoir pour cäble e1ectrique La prdsente invention a pour objet une installa- tion comprenant un laminoir pour cäble electrique, du type comprenant un laminoir ä galets de com- pression entrain6s par un moteur et entre lesquels passe longitudinalement une corde mdtallique destinee ä former ulterieurement un 61ement de cäble 61ectri- que, un retireur par lequel passe cette corde apres avoir 6t6 rendue compacte par 1e laminoir, avant de venir s'enrouler sur une bobine. Installation comprising a rolling mill for electric cable The subject of the present invention is an installation comprising a rolling mill for electric cable, of the type comprising a rolling mill with compression rollers driven by a motor and between which passes longitudinally a metal cord intended to form subsequently a section of electrical cable, a puller through which this cord passes after having been compacted by the rolling mill, before coming to wind up on a reel.

L'installation selon 1'invention est caracterisee en ce que l'une des machines que sont 1e laminoir et 1e retireur est montee mobile par rapport ä 1'autre, pour se deplacer parallelement ä la direction longitudinale du trongon de corde compris entre ces deux machi- nes, sous 1'action des variations de vitesse d'entraine- ment de l'une de ces machines, c'est ä-dire vitesse d'entrainement des galets de compression et vitesse de tirage du retireur, et en ce qu'elle comporte un dispositif rdgulateur plac6 sous la dependance des deplacements spontanes de la machine mobile, et agissant sur l'une de ces deux vitesses, 1'autre dtant constante, pour amener constamment la machine mobile dans une Position d'equilibre de fonction- nement. The installation according to the invention is characterized in that one of the machines, the rolling mill and the withdrawer, is mounted so as to move with respect to the other, to move parallel to the longitudinal direction of the section of cord comprised between these two machines, under the action of variations in the driving speed of one of these machines, that is to say the driving speed of the compression rollers and the pulling speed of the withdrawer, and in that it comprises a regulating device placed under the dependence of the spontaneous displacements of the mobile machine, and acting on one of these two speeds, the other being constant, to constantly bring the mobile machine into a position of operating equilibrium; ment.

Le dessin annex6 repr6sente sch6matiquement et ä titre d'exemple, une forme d'execution de 1'instal- lation selon 1'invention. The appended drawing represents schematically and by way of example, one form of execution of the installation according to the invention.

La fig. 1 est un sch6ma de principe, montrant 1'ensemble de 1'installation. fig. 1 is a block diagram, showing the entire installation.

La fig. 2 est une vue lat6rale partielle du laminoir. fig. 2 is a partial side view of the rolling mill.

La fig. 3 est une vue selon 3-3 de la fig. 2, mon- trant les galets de compression et la section trans- versale de la corde apres Passage entre ces galets. L'installation comprend, comme les installations similaires connues 10) Une corbeille de cäbleuse 1 entrainde en rotation autour de son axe gdomdtrique 2 dispose hori- zontalement. La rotation de cette corbeille a pour effet la formation, au moyen des fils de cuivre 3, dune corde de cuivre 4 compos6e d'un certain nombre de conducteurs nus. fig. 3 is a view according to 3-3 of FIG. 2, showing the compression rollers and the transverse section of the rope after passing between these rollers. The installation comprises, like known similar installations 10) A cable basket 1 driven in rotation around its geometric axis 2 is arranged horizontally. The rotation of this basket results in the formation, by means of the copper wires 3, of a copper cord 4 composed of a certain number of bare conductors.

20) Un laminoir 5 qui ecrase la corde 4 pour la rendre compacte, tont en lui donnant une section transversale en forme de secteur de cercle d'an- gle au centre dgal ä 120 . Trois cordes ainsi compactdes formeront ensuite un cäble, de fagon connue. Les galets 6, 7 de ce laminoir sont entraines par moteur. 20) A rolling mill 5 which crushes the cord 4 to make it compact, giving it a cross-section in the form of a sector of a circle with an angle at the center equal to 120 . Three cords thus compacted will then form a cable, in a known manner. The rollers 6, 7 of this rolling mill are driven by a motor.

30) Un retireur 8 qui est un dispositif de tirage de la corde, entrain6 par moteur et par lequel passe la corde compactee. 30) A puller 8 which is a device for pulling the rope, entrain6 by motor and through which passes the compacted rope.

4 ) Un bobinoir sur lequel vient s'enrouler la corde ä la sortie du retireur. 4) A winder on which the rope is wound on leaving the retractor.

La difficultd, dans une installation de ce genre, est de donner aux galets de compression 6, 7 la vitesse adequate. En effet, cette vitesse West pas connue exactement, car an ignore la valeur du dia- metre primitif des galets de compression, ä cause de leur gorge. D'autre Part, sous 1'action de ces galets, la corde de cuivre s'allonge et la vitesse des galets ne correspond en fait ui ä la vitesse d'entr6e de la corde Jans 1e laminoir, ni ä sa vitesse de sortie. Si ces galets sont entramds trog vite, il se produit un mou entre 1e laminoir et 1e retireur, ce qui fausse 1e pas de cäblage. Si les galets sont entram6s trog lentement, une tension considerable prend naissance dans 1e tronpn de corde situe entre 1e laminoir et le retireur, ce qui conduit ä la rupture de la Corde ä cet endroit. The difficulty, in an installation of this kind, is to give the compression rollers 6, 7 the adequate speed. Indeed, this speed is not known exactly, because we do not know the value of the pitch diameter of the compression rollers, because of their throat. On the other hand, under the action of these rollers, the copper cord lengthens and the speed of the rollers does not in fact correspond either to the entry speed of the cord in the rolling mill, nor to its exit speed. If these rollers are driven too fast, there is a slack between the rolling mill and the withdrawer, which distorts the wiring pitch. If the rollers are driven in very slowly, considerable tension develops in the section of rope between the rolling mill and the take-off, which leads to the rope breaking at this point.

0n voit donc 1e grand int6ret qu'il y a ä assurer ä chaque instant la vitesse ad6quate des galets, qui Beule permet d'6viter les deux graves d6fauts que 1'on vieret d'indiquer. We therefore see the great interest there is in ensuring at all times the adequate speed of the rollers, which Beule makes it possible to avoid the two serious faults which we have just mentioned.

Dans la forme d'ex6cution repr6sentde partielle, ment sur les fig. 2 et 3, an a r6solu ce Probleme gräce ä la disposition suivante Le laminoir 5 comprenant les galets de com- pression 6, 7, ainsi que 1e moteur d'entrainement de Ces galets (non reprdsent6) sont port6s par un bäti de laminoir 10 uruni de galets 11 coopdrant avec des glissieres horizontales 12 (dopt une Beule est visible sur 1e dessin), pour permettre 1e d6placement du laminoir 1e long de Ces glissieres, qui sont paral leles ä la Partie rectiligne de la Corde 4 coaxiale avec Faxe 2 (fig. 1). Dans cet exemple, le bäti du retireur 8 (non repr6sent6 sur la fig. 2) est fixe. In the form of execution shown in partial form, shown in FIGS. 2 and 3, an has solved this problem thanks to the following arrangement. The rolling mill 5 comprising the compression rollers 6, 7, as well as the drive motor for these rollers (not shown) are carried by a rolling mill frame 10 uruni of rollers 11 cooperating with horizontal slides 12 (dopt a Beule is visible on the drawing), to allow the first movement of the rolling mill along these slides, which are parallel to the rectilinear Part of the Rope 4 coaxial with Faxe 2 ( Fig. 1). In this example, the retractor frame 8 (not shown in Fig. 2) is fixed.

0n comprend faeilement qu'avee cette disposition, le retireur tournant ä vitesse constante, si les galets de compression 6, 7 tournent trop vite, le laminoir se d6place vers Famont (c'est-ä-dire vers la gauche sur la fig. 2), le long des glissieres 12. Inversement, si Ces galets 6, 7 tournent trog lentement, 1e lami- noir est entraind vers Faval sous Feffet de la tension produite dans la Corde par le retireur. It is easy to understand that with this arrangement, the withdrawer rotating at constant speed, if the compression rollers 6, 7 rotate too quickly, the rolling mill moves towards the upstream (that is to say towards the left in FIG. 2 ), along the slideways 12. Conversely, if these rollers 6, 7 turn very slowly, the rolling mill is entraind towards the downstream under the effect of the tension produced in the rope by the withdrawer.

0n utilise Ces ddplacements du laminoir pour r6gler automatiquement la vitesse des galets de com- pression. Pour cela, il est pr6vu, dans cet exemple, un levier 13 mont6 oseillant sur 1e bäti 10, autour d'un axe perpendiculaire ä la direction des glissieres 12. Ce levier coopere, par Bon extr6mit6 libre, avec un organe fixe 14 qui Foblige ä osciller Tors des deplacements du bäti 10. Le levier 13 commande, par ses oscillations, un variateur de vitesse 18 dispos6 entre le moteur d'entrainement (non reprdsentd) des galets 6, 7 et Ces galets. Les lignes 15, 16, 17 en traits mixtes illustrent sch6matiquement cette action du levier 13 sur la vitesse imprim6e aux galets 6, 7. These movements of the rolling mill are used to automatically regulate the speed of the compression rollers. For this, provision is made, in this example, for a lever 13 mounted on the frame 10, about an axis perpendicular to the direction of the slides 12. This lever cooperates, at its free end, with a fixed member 14 which forces it to oscillate Tors displacements of the frame 10. The lever 13 controls, by its oscillations, a variable speed drive 18 dispo6 between the drive motor (not shown) of the rollers 6, 7 and these rollers. Lines 15, 16, 17 in dashed lines schematically illustrate this action of the lever 13 on the speed imparted to the rollers 6, 7.

Si les galets vont trog vite et que 1e bäti du laminoir 10 se d6place vers Famont comme ddjä vu, le levier 13 agit sur le variateur pour produire auto- matiquement la correction (diminution) de vitesse d6sirde en ramenant 1e bäti en Position d'6quilibre. Si les galets 6, 7 tournent trog lentement, une coi- rection inverse intervient de fagon analogue. If the rollers are going too fast and the rolling mill frame 10 moves uphill as already seen, the lever 13 acts on the variator to automatically produce the desired speed correction (decrease) by returning the frame to the equilibrium position. . If the rollers 6, 7 rotate very slowly, a reverse co-rection occurs in a similar fashion.

Le fonctionnement de Fensemble est stable et la Position d'6quilibre du bäti 10 s'installe et se main- tient automatiquement. 0n peut en effet montrer th6oriquement qu'en utilisant ainsi les d6placements spontan6s du laminoir pour rdgler la vitesse des galets de compression de ce laminoir, le rdglage est ddpourvu de tont ph6nomene d'oscillation. The operation of the assembly is stable and the Equilibrium Position of the frame 10 settles and is maintained automatically. It can in fact be shown theoretically that by thus using the spontaneous movements of the rolling mill to regulate the speed of the compression rollers of this rolling mill, the regulation is devoid of any phenomenon of oscillation.

Dans une variante facile ä imaginer, an pourrait prdvoir que ce sofft non pas le bäti du laminoir qui sofft mobile sur des glissieres et celui du retireur qui sofft fixe, mais Finverse. C'est 1e mouvement relatif de Ces deux machirres qu'il convient d'utiliser pour assurer le r6glage. In a variant easy to imagine, one could provide that this sofft not the frame of the rolling mill which sofft mobile on slides and that of the withdrawer which sofft fixed, but the reverse. It is the relative movement of these two jaws that should be used to ensure adjustment.

Il va de soff qu'au lieu d'agir sur la vitesse des galets de compression du laminoir, en fonction du d@placement relatif spontan6 du laminoir et du reti- reur, an pourrait agir sur la vitesse du retireur, en gardant alors une vitesse constante pour les galets de compression. Le r6sultat serait le meme. It goes without saying that instead of acting on the speed of the compression rollers of the rolling mill, as a function of the spontaneous relative displacement of the rolling mill and the withdrawer, an could act on the speed of the withdrawer, while maintaining a constant speed for the compression rollers. The result would be the same.

Claims (1)

REVENDICATION Installation comprenant un laminoir pour cäble dlectrique, du type comprenant un laminoir ä galets de compression entrain6s par un moteur et entre lesquels passe longitudinalement une Corde m6tal- lique destin6e ä former ult6rieurement un 616ment de cäble dlectrique, un retireur par lequel passe cette Corde apres avoir 6t6 rendue compacte par 1e lami- noir, avant de venir s'enrouler sur une bobirre, carac- t6ris6e en ce que Fune des machirres que sont 1e laminoir et 1e retireur est mont6e mobile par rapport ä Fautre, pour se d6placer parallelement ä, la direc- tion longitudinale du trongon de Corde compris entre Ces deux machirres, sous Faction des variations de vitesse d'entrainement de Fune de Ces machirres, c'est-ä-dire vitesse d'entrainement des galets de com- pression et vitesse de tirage du retireur, et en ce quelle comporte un dispositif r6gulateur plac6 sous la ddpendance des d6placements spontands de la ma chirre mobile, et agissant sur Fune de Ces deux vites- ses, 1'autre dtant constante, pour amener constam- ment la machirre mobile dans une position_d'dquilibre de fonctionnement. CLAIM Installation comprising a rolling mill for electric cable, of the type comprising a rolling mill with compression rollers driven by a motor and between which passes longitudinally a metal cord intended to subsequently form a section of electric cable, a withdrawer through which this cord passes after to have been made compact by the rolling mill, before being rolled up on a winding, characterized in that one of the jaws which are the rolling mill and the withdrawer is mounted mobile with respect to the other, to move parallel to, the longitudinal direction of the section of Corde comprised between these two jaws, under the action of variations in the drive speed of one of these jaws, that is to say the drive speed of the compression rollers and the speed of drawing of the retractor, and in that it comprises a regulating device placed under the dependence of the spontaneous displacements of the movable jaw, and acting on one of these two speeds, the other being constant, to constantly bring the movable jaw in an operating equilibrium position.
CH949265A 1965-07-07 1965-07-07 Installation comprising a rolling mill for electric cable CH416772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH949265A CH416772A (en) 1965-07-07 1965-07-07 Installation comprising a rolling mill for electric cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH949265A CH416772A (en) 1965-07-07 1965-07-07 Installation comprising a rolling mill for electric cable

Publications (1)

Publication Number Publication Date
CH416772A true CH416772A (en) 1966-07-15

Family

ID=4352564

Family Applications (1)

Application Number Title Priority Date Filing Date
CH949265A CH416772A (en) 1965-07-07 1965-07-07 Installation comprising a rolling mill for electric cable

Country Status (1)

Country Link
CH (1) CH416772A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2146356A4 (en) * 2007-03-30 2011-12-28 Furukawa Electric Co Ltd METHOD FOR MANUFACTURING INSULATED ELECTRIC WIRE AND ITS MANUFACTURING APPARATUS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2146356A4 (en) * 2007-03-30 2011-12-28 Furukawa Electric Co Ltd METHOD FOR MANUFACTURING INSULATED ELECTRIC WIRE AND ITS MANUFACTURING APPARATUS

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