EP1638877A1 - Method and arrangement in fibre-like product processing - Google Patents
Method and arrangement in fibre-like product processingInfo
- Publication number
- EP1638877A1 EP1638877A1 EP04742120A EP04742120A EP1638877A1 EP 1638877 A1 EP1638877 A1 EP 1638877A1 EP 04742120 A EP04742120 A EP 04742120A EP 04742120 A EP04742120 A EP 04742120A EP 1638877 A1 EP1638877 A1 EP 1638877A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- product
- fibre
- new
- backing surface
- locking
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000000694 effects Effects 0.000 claims description 8
- 238000012384 transportation and delivery Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 239000000835 fiber Substances 0.000 description 26
- 238000000576 coating method Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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.
- Figure 1 is a schematic general view of a fibre coating line
- Figure 2 is a schematic side view of an arrangement of the invention
- Figure 3 shows the arrangement of Figure 2 seen in the travel direction of the fibre
- Figure 4 shows a top view of the arrangement of Figures 2 and 3.
- Figure 1 shows generally a line used for coating an optical fibre.
- reference numeral 1 generally denotes fibre deliveries
- 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 Figure 1.
- reference numeral 4 generally denotes means employed for cooling the coated fibre
- reference numeral 5 denotes means for winding the coated fibre onto a reel.
- Reference numeral 10 in Figure 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 Figure 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.
- the arrangement of Figures 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 Figure 1.
- the first fibre-like product is denoted by reference numeral 3a and a new fibre-like product by reference numeral 3b.
- 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 3b is arranged for being locked into place such that the product 3b is pressed against the backing surface 15 into a curved shape defined by the backing surface.
- the new fibre-like product 3b is bent and pressed against the backing surface 15 such that the product follows the shape of the backing surface as shown in Figure 2.
- the new fibre-like product 3b 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 Figure 2.
- the first fibre-like product 3a runs out the locking between the new fibre-like product 3b and the curved portion of the backing sur- face 15 and the portion in front of the curved portion is arranged for being released first, whereby the new fibre-like product 3b straightens out due to its elastic properties and the first end of the product 3b moves forward towards a fibre needle 16 in the press head.
- 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 Figure 2.
- the first end of the product 3b 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 3b is close to the product 3a and the fibre needle is tight.
- the locking between the new product 3b 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 3a is arranged to draw along a new fibre-like product 3b at a speed that is equal to that of the line.
- the friction between the surfaces of products 3a and 3b 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 3b 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 con- sists of a movable unit as shown in Figure 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 3b 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 Figure 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 Figure 2, in which the end of the new fibre-like product appears in the preparation position, indicated by broken lines, as a part that extends over the gripping unit 14. After the change, the gripping unit can be lowered back to its lower position and the operator may start preparing another change as the process goes on.
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
---|---|
EP1638877A1 true EP1638877A1 (en) | 2006-03-29 |
Family
ID=8566313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04742120A Withdrawn EP1638877A1 (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) |
Family Cites Families (7)
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 |
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 |
-
2003
- 2003-06-27 FI FI20030962A patent/FI116672B/fi active IP Right Grant
-
2004
- 2004-06-21 US US10/523,684 patent/US20060010664A1/en not_active Abandoned
- 2004-06-21 KR KR1020057003522A patent/KR20060023515A/ko not_active Application Discontinuation
- 2004-06-21 EP EP04742120A patent/EP1638877A1/en not_active Withdrawn
- 2004-06-21 WO PCT/FI2004/000377 patent/WO2005000725A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2005000725A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20060010664A1 (en) | 2006-01-19 |
FI20030962A0 (fi) | 2003-06-27 |
FI20030962A (fi) | 2004-12-28 |
FI116672B (fi) | 2006-01-31 |
WO2005000725A1 (en) | 2005-01-06 |
KR20060023515A (ko) | 2006-03-14 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20050209 |
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AK | Designated contracting states |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NEXTROM OY |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20070206 |