EP1218278A1 - Appareil destine a appliquer des filaments mous a des articles allonges continus - Google Patents

Appareil destine a appliquer des filaments mous a des articles allonges continus

Info

Publication number
EP1218278A1
EP1218278A1 EP99973989A EP99973989A EP1218278A1 EP 1218278 A1 EP1218278 A1 EP 1218278A1 EP 99973989 A EP99973989 A EP 99973989A EP 99973989 A EP99973989 A EP 99973989A EP 1218278 A1 EP1218278 A1 EP 1218278A1
Authority
EP
European Patent Office
Prior art keywords
filament
chamber
applicator
chambers
machine axis
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.)
Withdrawn
Application number
EP99973989A
Other languages
German (de)
English (en)
Other versions
EP1218278A4 (fr
Inventor
Joseph Varga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nextrom Ltd
Syncro Machine Co
Original Assignee
Nextrom Ltd
Syncro Machine Co
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 Nextrom Ltd, Syncro Machine Co filed Critical Nextrom Ltd
Priority claimed from PCT/US1999/019800 external-priority patent/WO2001016011A1/fr
Publication of EP1218278A1 publication Critical patent/EP1218278A1/fr
Publication of EP1218278A4 publication Critical patent/EP1218278A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H81/00—Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for

Definitions

  • the invention generally relates to machinery for manufacturing cables and other
  • the jacket is applied to encapsulate and shield the optical fibers.
  • the elongate filaments that are introduced may be, for example, a bundle of very soft and flexible strands or fibers.
  • threshold rotational speeds can be in the range
  • plurality of filaments about a continuous elongate element at an application station comprises
  • First guide means is provided for
  • each chamber defining a chamber axis substantially parallel to said machine axis and mounted on said frame for rotation about said machine axis.
  • Each chamber is
  • Each said panel has
  • Second guide means is provided for guiding each filament from an associated opening to said machine axis for winding about or introduction into the elongate element, whereby removal of a filament from its associated wound package within a chamber is not influenced by air turbulence as said chambers containing the wound packages of filaments rotate about the machine axis.
  • Fig. 1 is a front elevational view of a filament applicator in accordance with the
  • Fig. 2 is a side elevational view of an applicator similar to the one shown in Fig. 1 ;
  • Fig. 3 is an enlarged side elevational view, in partial cross section, of one of the
  • Fig. 4 is an enlarged front elevational view of one of the closure panels used to cover
  • Fig. 5 is an enlarged detail of section 5 in Fig. 3;
  • Fig. 6 is an enlarged detail of section 6 in Fig. 3
  • Fig. 7 is an enlarged detail of section 7 in Fig. 3;
  • Fig. 8 is an enlarged detail of a tension controller and a tension sensor used in
  • Fig. 9 is an enlarged detail of section 9 in Fig. 2.
  • Fig. 10 is a front elevational view of an enlarged detail of the tensioning devices at 8 in Fig. 2.
  • the apparatus for applying generally soft filaments to continuous elongate articles is generally designated by the reference numeral 10.
  • the apparatus 10 includes a support frame 12 which is positioned at an application
  • applicator of the present invention will be suitable for use for the production of numerous
  • cables such as fiberoptic cables or other cables that require the introduction of one or more soft, flexible and/or flimsy fiber filaments, such as synthetic fibers for generalized use
  • the frame 12 defines a machine axis A m (Fig. 2) at the application station at which the apparatus 10 is positioned or located.
  • the apparatus 10 includes an axial through opening or channel 14 which is generally coextensive with the machine axis A m through which the elongate element FC may be guided along the machine axis while the cable or conductor is fed through the application station.
  • brakes 12e (Fig. 1) which may engage a brake disc mounted for
  • the applicator are not critical for the purposes of the present invention, and are not disclosed
  • the upper chamber 18a is illustrated as including a
  • the cylindrical wall 20 is suitably secured to the mounting plate 12 and/or the outer cylindrical drum or housing 16.
  • the chamber 18 is shown provided with a rear,
  • upstream wall 22 which closes that axial end of the chamber 18 that faces the upstream end
  • the bolts 24 may also be used to secure a generally horizontal hollow shaft 26 within
  • the chamber 18 which has an axial length L,. along the axis A c , which is smaller than the
  • the shaft 26 has an outer diameter selected to slidably support a cop or a wound filament package 28 which includes the wound filament
  • the rear wall 22 is preferably provided, on the surface facing the inside the chamber 18, with a layer of soft, conforming material 30, which, in use, abuts against the upstream
  • One objective of the applicator is to unwind the wound filament package 28 and withdraw or extract a filament F from the chamber 18 in an orderly
  • the conforming layer or seal 30 is in the nature of an annular disk made of a relatively soft plastic foam material which is adhered to the rear wall 22 in any suitable or
  • a locking mechanism 32 which preferably makes it easy and convenient to mount the package 28 on and remove the empty tube 28b
  • An important feature of the present invention is the provision of a door, cover or panel 34 which can be selectively opened to provide access to the chamber 18, at the downstream
  • FIG. 3 the opening is shown as a eyelet 34a mounted substantially along the chamber axis A c .
  • the door or panel 34 may be provided with an additional eyelet or opening
  • the door panel 34 is
  • such means is in the form of a hinge 36 attached to a rotating component by a suitable fastener, such as bolt 37. Additional details of the hinge
  • the filament is removed from the cop or wound package 28, it is directed to the eyelet 34a in the panel or door 34, and subsequently guided to the point of application.
  • the specific guide elements used for this purpose are not critical.
  • such guides include a pigtail retainer element 40 mounted on a rotating component associated with the cylindrical drum 16.
  • a plurality of such guides may be provided, as needed, Fig. 3 illustrating a further pigtail retainer element
  • tension sensor 46 so that the tension on the fiber F may be monitored and adjusted as necessary in order to maintain the tension of all the fibers being applied or introduced into the cable at substantially the same tension. Once the fiber F has been adjusted to the proper
  • configuration of the door or panel 34 is to shape it in the general form of a trapezoid, which permits the placement of a door or panel 34 for each of the chambers 18A-18L while creating
  • the door or panel 34 has opposing straight edges 34c, 34d which are coextensive with radial lines passing through the machine axis A m .
  • the radially outermost edge of the door or cover 34 is arcuate edge 34e which is in the form of an arc generally coextensive with the circumference of the cylindrical drum 16. At the radially innermost point, the door or panel 34 is provided with a substantially straight edge
  • panels 34 are preferably hinged. It will be clear that during high speed rotation of the drum 16 radially outwardly acting centrifugal forces will tend to move all rotating bodies radially outwardly. By placing the hinge assembly 36 along the inside edge 34f, the door or panel 34 will not inadvertently open but will, in fact, be subjected to forces which tend to force the
  • a latch mechanism 38 (Figs. 4 and 5), one form of which is illustrated in Fig. 6.
  • Fig. 5 the detail of the hinge mechanism 36 is illustrated, in which one portion of
  • the hinge is securely attached to the rotating member by means of any suitable fastener 37,
  • the same rotating part 49 that supports or carries the hinge 36 is also preferably provided with a threaded axial hole 50 for receiving a suitable guide
  • Fig. 6 illustrates one presently preferred embodiment for a latch construction 38
  • a threaded bolt 52a which is provided with a tapered or conical shaped head 52a, the bolt being secured to the cylindrical drum or housing 16 by means of a corresponding or associated nut 52b.
  • a leaf spring 54 is provided which has one portion 54a secured to the door or panel 34 by means of rivets 56, while a right angle portion 54b, provided with a V-shaped notch 54c, is arranged to
  • Fig. 7 the detail of the eyelet 34a is shown, indicating how the eyelet 34a may be
  • any suitable adhesive 58 such as silicone.
  • Fig. 8 some details are illustrated of the tensioning mechanism as well as tension the sensing arrangement for monitoring and adjusting the tension on the filament F.
  • filament F is drawn radially inwardly towards the machine axis A m , it is guided through two
  • a conventional manual tensioning arrangement may be used which includes an adjusting knob 60 for modifying the relative pressure applied between the two plates.
  • the filament F extends through an eyelet 68 mounted on an arm 70 supported on a rod 72 which forms part of a tension sensing mechanism of the
  • Fig. 9 the details of the lock mechanism 32 are illustrated. As shown, the shaft 26 is provided, in the hollow portion thereof, with a transverse member 74 which is secured to
  • a movable member 78 is pivotally mounted at one end 78a about a pivot
  • An adjusting knob 84 is used to adjust the position between the engaging or gripping position and the disengaging or releasing
  • a cop 28 is placed into the desired number of chambers, as may be required, to provide a desired number of filaments to be
  • a cop 28 is placed into each of the twelve chambers 18A-18L. For each cop 28, the
  • each filament is guided substantially radially inwardly towards the machine axis A m by engagement with suitable guide elements or members, such as pigtail retaining elements 40, 42 and any additional number of guide elements as may be required.
  • suitable guide elements or members such as pigtail retaining elements 40, 42 and any additional number of guide elements as may be required.
  • the chamber is substantially closed, with the minor exception of the very small openings in the eyelets 34a, 34b. Therefore, substantially independently of the speed of
  • centrifugal force acting the on filament F is approximately 206 times the weight of the
  • filament causes the filament to be drawn or pullet off in a generally axial direction from the
  • the filament F will cause the filament to fly off the package and be cast out against the inner
  • the unit described is useful for applying particularly very flimsy, lightweight and soft filaments that are readily influenced by air turbulence.
  • the eyelet 34b may be utilized, which
  • filament F passes closer to the machine axis, the less it will be influenced by air turbulence.
  • the door or panel may no longer be required because
  • the forces imparted by the air turbulence are relatively minor compared to the stiffness of the material.
  • a single, thin strand may be more resistant to air turbulence
  • a bulkier fiber which consists of many strands that encompass a relatively large area, such as Kevlar strands, may result in higher air friction.
  • downstream axial ends of the chambers 18, these can also be placed on the opposite,

Landscapes

  • Ropes Or Cables (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)

Abstract

Selon l'invention, un appareil destiné à appliquer des filaments (10) comporte plusieurs chambres (18A-18L). Chacune d'elles définit un axe de chambre sensiblement parallèle à l'axe de la machine (Am) et est monté sur le cadre (12) de manière à tourner autour de l'axe de la machine (Am). Chaque chambre (18A-18L) est sensiblement fermée et comporte un panneau (34) à une extrémité axiale de la chambre (18) pouvant être déplacé entre une position ouverte permettant d'insérer et de retirer des enroulements de matériaux de filament (28) à l'intérieur de la chambre (18) et une position fermée permettant de sensiblement sceller la chambre (18) et d'empêcher les turbulences d'air, induites par la rotation autour de l'axe de la machine (Am), à l'intérieur de la chambre (18). Chaque panneau (34) comprend une ouverture (34a) à travers laquelle le matériau de filament (F) est alimenté au cours de l'opération d'enroulement.
EP99973989A 1999-08-30 1999-08-30 Appareil destine a appliquer des filaments mous a des articles allonges continus Withdrawn EP1218278A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1999/019800 WO2001016011A1 (fr) 1998-07-02 1999-08-30 Appareil destine a appliquer des filaments mous a des articles allonges continus

Publications (2)

Publication Number Publication Date
EP1218278A1 true EP1218278A1 (fr) 2002-07-03
EP1218278A4 EP1218278A4 (fr) 2004-04-21

Family

ID=22273491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99973989A Withdrawn EP1218278A4 (fr) 1999-08-30 1999-08-30 Appareil destine a appliquer des filaments mous a des articles allonges continus

Country Status (4)

Country Link
EP (1) EP1218278A4 (fr)
JP (1) JP2003516288A (fr)
KR (1) KR20020075851A (fr)
CA (1) CA2385138A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644029A (en) * 1948-08-16 1953-06-30 Connollys Blackley Ltd Natural silk insulated electric conductor
US3667203A (en) * 1969-07-04 1972-06-06 Pirelli Winding machine for covering a hose of high polymer with reinforcing threads
US4077828A (en) * 1976-09-29 1978-03-07 Ab Gustavsberg Machine for manufacturing reinforced tubes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644029A (en) * 1948-08-16 1953-06-30 Connollys Blackley Ltd Natural silk insulated electric conductor
US3667203A (en) * 1969-07-04 1972-06-06 Pirelli Winding machine for covering a hose of high polymer with reinforcing threads
US4077828A (en) * 1976-09-29 1978-03-07 Ab Gustavsberg Machine for manufacturing reinforced tubes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0116011A1 *

Also Published As

Publication number Publication date
KR20020075851A (ko) 2002-10-07
EP1218278A4 (fr) 2004-04-21
JP2003516288A (ja) 2003-05-13
CA2385138A1 (fr) 2001-03-08

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