US20060010664A1 - Method and arrangement in fibre-like product processing - Google Patents

Method and arrangement in fibre-like product processing Download PDF

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Publication number
US20060010664A1
US20060010664A1 US10/523,684 US52368405A US2006010664A1 US 20060010664 A1 US20060010664 A1 US 20060010664A1 US 52368405 A US52368405 A US 52368405A US 2006010664 A1 US2006010664 A1 US 2006010664A1
Authority
US
United States
Prior art keywords
product
fibre
new
locking
backing surface
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.)
Abandoned
Application number
US10/523,684
Other languages
English (en)
Inventor
Risto Heinonen
Pertti Taskinen
Mika Aunola
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.)
Mindset Holding SA
Original Assignee
Nextrom Holding 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 Nextrom Holding SA filed Critical Nextrom Holding SA
Assigned to NEXTROM HOLDINGS S.A. reassignment NEXTROM HOLDINGS S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEINONEN, RISTO, TASKINEN, PERTTI, AUNOLA, MIKA
Publication of US20060010664A1 publication Critical patent/US20060010664A1/en
Abandoned legal-status Critical Current

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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
    • B65H51/00—Forwarding filamentary material
    • B65H51/28—Arrangements for initiating a forwarding operation
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/12—General methods of coating; Devices therefor
    • 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
    • B65H51/30—Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/32—Optical fibres or optical cables

Definitions

  • the invention relates to a method in connection with processing a fibre-like product, in which method a first fibre-like product is guided from delivery of the fibre-like product via a process-implementing unit forward in the process and when the first fibre-like product ends a new fibre-like product is guided to the process-implementing unit and further through it, whereby the new fibre-like product is guided in advance to be ready in the vicinity of the process-implementing unit.
  • the invention also relates to an arrangement in connection with processing a fibre-like product.
  • the method of the invention is characterized in that the new fibre-like product is gripped such that the new fibre-like product is locked into place and forced in a curved position onto a backing surface, that as the first fibre-like product ends the locking is released first from the base of the curved portion and in front thereof, whereby the new fibre-like product straightens out and the first end of the product moves forward and that thereafter the locking is released from other parts of the backing surface, whereby the tail end of the first fibre-like product draws the new fibre-like product onwards at a speed equal to that of the line.
  • the arrangement of the invention is characterized in that the arrangement comprises a gripping unit having a backing surface provided with a curved portion, that the new fibre-like product is arranged for locking into place such that the product is pressed against the backing surface in a curved shape defined by the backing surface, that as the first fibre-like product ends the locking between the new fibre-like product and the curved portion of the backing surface and the portion in front thereof is arranged for being released first, whereby the new fibre-like product straightens out and the first end of the product moves onwards and only thereafter the locking is arranged for being released from other portions of the backing surface, whereby the tail end of the first fibre-like product is arranged to draw along the new fibre-like product at a speed equal to that of the line.
  • a primary advantage of the invention is that it avoids the time-consuming and difficult manual restart and fibre is wasted as little as possible and it is also possible to avoid all timing problems associated with gripping and releasing.
  • the invention thus provides economic advantages thanks to reduced fibre costs and improved degree of utilization of the line. Further, the structure of the arrangement of the invention is simple and reliable in use, because in practice it does not comprise any moving parts. The invention also improves the operational safety of the line, because the operator does not have to supply the fibre manually through the whole line or to feed new fibre into the process during the ongoing process.
  • FIG. 1 is a schematic general view of a fibre coating line
  • FIG. 2 is a schematic side view of an arrangement of the invention
  • FIG. 3 shows the arrangement of FIG. 2 seen in the travel direction of the fibre
  • FIG. 4 shows a top view of the arrangement of FIGS. 2 and 3 .
  • FIG. 1 shows generally a line used for coating an optical fibre.
  • reference numeral 1 generally denotes fibre deliveries and reference numeral 2 generally denotes a press apparatus comprising an actual press head and other means which are used to provide the surface of the optical fibre with a coating.
  • the optical fibre is denoted by reference numeral 3 in FIG. 1 .
  • reference numeral 4 generally denotes means employed for cooling the coated fibre, and correspondingly, reference numeral 5 denotes means for winding the coated fibre onto a reel.
  • Reference numeral 10 in FIG. 1 denotes an arrangement of the invention
  • reference numeral 11 denotes a diameter measuring device
  • reference numeral 12 denotes a pulling device for an optical fibre cable.
  • Reference numeral 13 in FIG. 1 denotes a line control unit.
  • the invention relates to a method and an arrangement which enable fibre coating as a continuous process.
  • the line operator may prepare a new fibre to be ready when the old fibre runs out.
  • the arrangement of the invention feeds a new fibre without interruption in the process to the press head.
  • the fibre joint can be marked and removed in subsequent process steps.
  • FIGS. 2, 3 and 4 The arrangement of the invention is depicted in FIGS. 2, 3 and 4 .
  • the arrangement of FIGS. 2, 3 and 4 is placed on the coating line at a point immediately preceding the press head of the press apparatus 2 as shown in FIG. 1 .
  • the first fibre-like product is denoted by reference numeral 3 a and a new fibre-like product by reference numeral 3 b.
  • the arrangement 10 of the invention comprises a gripping unit 14 , in which there is a backing surface 15 provided with a curved portion.
  • the new fibre-like product 3 b is arranged for being locked into place such that the product 3 b is pressed against the backing surface 15 into a curved shape defined by the backing surface.
  • the new fibre-like product 3 b is bent and pressed against the backing surface 15 such that the product follows the shape of the backing surface as shown in FIG. 2 .
  • the new fibre-like product 3 b is maintained in the position against the backing surface 15 such that in view of its elastic properties/elasticity it will not be able to straighten out to a position, in which the first fibre-like product is shown in FIG. 2 .
  • the portion of the backing surface in front of the curved portion refers here to the portion of the backing surface that is located in the vicinity of the fibre needle, for instance the portion of the backing surface on the right side of the curved portion in FIG. 2 .
  • the first end of the product 3 b moves forward towards the fibre needle only a very short distance, in practice a few millimetres, but said transfer is sufficient because the new product 3 b is close to the product 3 a and the fibre needle is tight.
  • the locking between the new product 3 b and the backing surface 15 is only thereafter arranged for being released for other portions of the backing surface, whereby the tail end of the first fibre-like product 3 a is arranged to draw along a new fibre-like product 3 b at a speed that is equal to that of the line.
  • the friction between the surfaces of products 3 a and 3 b is relatively high, which enables the above-described procedure.
  • the pressure difference can be provided, for instance, by suction effect, as in the examples of the figures.
  • reference numeral 17 denotes the channels, by means of which the product 3 b is sucked against the backing surface 15 .
  • the backing surface may consist, for instance, of a groove formed between two plate-like parts, at the bottom of which groove the above-mentioned channels 17 open.
  • Suction control to allow termination of the suction effect first at the curved portion of the backing surface can be implemented in any suitable manner. Partial vacuum can be produced by means of any apparatus known per se.
  • blowing to assist in the release, which makes sure that the new product straightens out in a desired manner at the area of the curved portion of the backing surface as described above.
  • the same channels 17 are used for the blowing as for providing the suction effect. This contributory operation is particularly advantageous to those fibre-like products whose elastic properties are such that they are not fully sufficient for straightening the product after termination of the suction effect.
  • the gripping unit 14 of the arrangement of the invention consists of a movable unit as shown in FIG. 2 , in which a second position of the gripping unit, in other words a preparation position, is indicated by broken lines.
  • the line operator may prepare a new fibre-like product 3 b ready for the gripping unit as the process goes on. After the preparation the gripping unit is lifted to a higher position to wait for a change.
  • the higher position is indicated in FIG. 2 by a continuous line.
  • the apparatus is advantageously designed such that as the gripping unit rises to the higher position it also finishes the end of the new fibre-like product, in other words, it cuts the end in a correct manner, for instance.
  • the above feature is shown in FIG.
  • the above-described embodiment of the invention is not intended to restrict the invention in any way, but it can be modified fully freely within the scope of the claims.
  • the arrangement of the invention or the details thereof need not necessarily be the same as those shown in the figures, but other solutions are also possible.
  • the invention is applied in connection with a press head.
  • the invention is not restricted to said feature or to optical fibres only.
  • the invention can be applied in connection with all kinds of fibre-like products, irrespective of the material or the number of the products, etc.
  • the product is locked to the backing surface with suction.
  • suction can be used as a contributory factor for releasing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Treatment Of Fiber Materials (AREA)
US10/523,684 2003-06-27 2004-06-21 Method and arrangement in fibre-like product processing Abandoned US20060010664A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20030962 2003-06-27
FI20030962A FI116672B (fi) 2003-06-27 2003-06-27 Menetelmä ja sovitelma kuidunomaisen tuotteen käsittelyn yhteydessä
PCT/FI2004/000377 WO2005000725A1 (en) 2003-06-27 2004-06-21 Method and arrangement in fibre-like product processing

Publications (1)

Publication Number Publication Date
US20060010664A1 true US20060010664A1 (en) 2006-01-19

Family

ID=8566313

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/523,684 Abandoned US20060010664A1 (en) 2003-06-27 2004-06-21 Method and arrangement in fibre-like product processing

Country Status (5)

Country Link
US (1) US20060010664A1 (fi)
EP (1) EP1638877A1 (fi)
KR (1) KR20060023515A (fi)
FI (1) FI116672B (fi)
WO (1) WO2005000725A1 (fi)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6433924B1 (en) * 2000-11-14 2002-08-13 Optical Coating Laboratory, Inc. Wavelength-selective optical amplifier
US6543122B1 (en) * 2001-09-21 2003-04-08 Alcoa Inc. Process for producing thick sheet from direct chill cast cold rolled aluminum alloy

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629735A1 (de) * 1986-09-01 1988-03-03 Gregor Gebald Verfahren zum anschliessen des fadenanfangs einer vorratsspule an das ende eines laufenden fadens
BE1000378A4 (nl) * 1987-03-13 1988-11-16 Picanol Nv Werkwijze voor een kontinue draadtoevoer vanaf voorraadspoelen en inrichting die deze wekwijze toepast.
DE3933291C1 (en) * 1989-10-05 1991-04-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De Electric cable alternating feeding arrangement for wiring tool - has buffer store between cable changeover and feed unit and storage chamber to return unused part to changeover unit
US5889908A (en) * 1997-07-31 1999-03-30 Corning Incorporated 1xN fiber optic coupler/splitter
FI105600B (fi) * 1998-06-18 2000-09-15 Nextrom Holding Sa Menetelmä ja sovitelma optisen kuidun päällystyksen yhteydessä

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6433924B1 (en) * 2000-11-14 2002-08-13 Optical Coating Laboratory, Inc. Wavelength-selective optical amplifier
US6543122B1 (en) * 2001-09-21 2003-04-08 Alcoa Inc. Process for producing thick sheet from direct chill cast cold rolled aluminum alloy

Also Published As

Publication number Publication date
KR20060023515A (ko) 2006-03-14
EP1638877A1 (en) 2006-03-29
FI20030962A (fi) 2004-12-28
FI20030962A0 (fi) 2003-06-27
FI116672B (fi) 2006-01-31
WO2005000725A1 (en) 2005-01-06

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AS Assignment

Owner name: NEXTROM HOLDINGS S.A., SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HEINONEN, RISTO;TASKINEN, PERTTI;AUNOLA, MIKA;REEL/FRAME:016189/0867;SIGNING DATES FROM 20050412 TO 20050421

STCB Information on status: application discontinuation

Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION