CN1258010A - Method for winding fibre element having different longitudinal portions - Google Patents
Method for winding fibre element having different longitudinal portions Download PDFInfo
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- CN1258010A CN1258010A CN99126484A CN99126484A CN1258010A CN 1258010 A CN1258010 A CN 1258010A CN 99126484 A CN99126484 A CN 99126484A CN 99126484 A CN99126484 A CN 99126484A CN 1258010 A CN1258010 A CN 1258010A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/28—Traversing devices; Package-shaping arrangements
- B65H54/2803—Traversing devices; Package-shaping arrangements with a traversely moving package
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/28—Traversing devices; Package-shaping arrangements
- B65H54/2884—Microprocessor-controlled traversing devices in so far the control is not special to one of the traversing devices of groups B65H54/2803 - B65H54/325 or group B65H54/38
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H55/00—Wound packages of filamentary material
- B65H55/04—Wound packages of filamentary material characterised by method of winding
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- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4457—Bobbins; Reels
- G02B6/4458—Coiled, e.g. extensible helix
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- 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
- B65H2701/31—Textiles threads or artificial strands of filaments
- B65H2701/312—Fibreglass strands
- B65H2701/3122—Fibreglass strands extruded from spinnerets
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Moulding By Coating Moulds (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Winding Of Webs (AREA)
- Winding Filamentary Materials (AREA)
- Treatment Of Fiber Materials (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Method for winding a fiber element onto a support. The fiber element having at least two longitudinal portions (Pi) with different characteristics. The method including the steps of supplying the fiber element to the support and associating with each longitudinal portion a respective value of the winding pitch (pi) which is different from the values associated with the portions adjacent thereto. The winding pitch associated with each portion being modulated in accordance with a periodic function.
Description
The present invention relates to twine the method that fibre element with different longitudinal portions is used.Especially, the present invention relates to the optical fiber with different longitudinal portions is wound into the method for using on the reel of this fiber draw process terminal.
For the present invention, a kind of optical fiber that is suitably provided with surface applied and other coating is provided " fibre element ".
As technically known, optical fiber is to produce the ready precast rod from giving earlier in the wire drawing control tower (drawing tower) in special use.In fact precast rod is vertically to offer heating furnace, so that obtain the foundry goods of a melted material.This melted material is subsequently by wire drawing and cooling, to obtain to have the optical fiber of desireing characteristic.These characteristics are to obtain by the parameter that pulling process suitably is set, specifically as furnace temperature, fiber drawing speed with limit all other parameters (following detailed description) of this process conditions.In the terminal of drawing process, optical fiber is wound onto above the holder, above it, unclamp in use subsequently, not so for test or other with it again around other above reel.
In general, drawing process is under same process conditions its whole duration to be carried out, promptly without any the variation of technological parameter.Fiber is pulled out from single precast rod in this case, so that it is homogeneous and constant along its whole length basically.This fiber is wrapped in above the holder with the form of cylindrical helix when production run finishes, and does not interrupt and fixing pitch arranged.For the present invention, " winding pitch " be understood that, is meant the distance between two of the helix that has same bus on the residing right cylinder of above-mentioned helix in succession cross-section.Spirality with constant pitch is twined, and normally it is moved repeatedly with fixing speed obtain, perhaps make it finish similar motion by mobile parts with the fiber supply roll and obtain by moving axially reel.
Because allowing, the technical progress in the present age, wire drawing control tower from single precast rod, obtain up to the long optical fiber of several hundred kilometers.From now on, process modification may cause from single precast rod and obtain even longer optical fiber.Consider the high yield that can obtain already in the present drawing process, may need or more advantageously pull out the fiber that comprises longitudinal component, for example have the longitudinal component of different cores and/or cladding diameter, different internal stress or the like with different chemical/physical characteristics from single precast rod.These actual change can obtain by change one or more characteristic technological parameter in the fiber drawing process.
For example, formation comprises having essentially identical key property, but has the fiber of two or more longitudinal component of one or more different optics, geometry or mechanical property, may be useful.First example is to be provided at " by the variable color throwaway mode fiber of VAD manufactured " by people such as M.Ohashi, NTT, Japan, " The Transaction of the IEICE ", vol.E73, No.4,1990.4.In this paper, has the sensitivity of the low dispersion single-mode optical fiber that is about 1.5-1.6 μ m in order to study for microbend, employed fiber section is several kilometers long, and described optical fiber is made by single precast rod, and only variant each other aspect zero-dispersion wavelength.
Another example relates to modal dispersion (" polarization mode dispersion " or the PMD) research of phenomenon that causes for polarization.As be familiar with, this phenomenon is that the photoelastic effect that is subjected to take place in the optical fiber influences, its depend on pulling process in the above-mentioned optical fiber relevant architectural characteristic of pulling force of bearing.Therefore, for this class research, the pars fibrosa that acquisition has same physical/chemical characteristic and different internal stresss is more useful.
U.S. Patent No. 5,400,422 propose a kind of being used in a series of traitorous technology apart from Bragg grating of optical fiber formation in the actual fiber pulling process.This grating forms by using interferometry type optical technology that optical fiber is carried out UV radiation pulse exposure.These gratings form to give set a distance each other along optical fiber.Therefore in this case, the pars fibrosa with different qualities also is to form by the operating conditions that changes this technological process in drawing process.
Under another kind of occasion, some localized variation may made, aspect the characteristic of drawing optical fiber promptly only to the very little one section variation of working of above-mentioned optical fiber.This class situation is in U.S. Patent No. 4,163, is described in 370, wherein forms to have larger-diameter short fiber section, to improve this optical fiber in the performance aspect the modal dispersion.
The applicant notices, form at needs under the situation of the optical fiber that comprises many mutually different longitudinal components, it is not very favorable interruptedly optical fiber not being wrapped on the reel with constant pitch, can't distinguish mutually subsequently because be wound the different piece of optical fiber.A kind of approach that addresses this problem is, given fiber section one is twined fully, just interrupt this winding process thereby interrupt drawing process,, and replace this part optical fiber with the reel of a blank and be wound onto top reel so that can cut off optical fiber in end in this section.Can restart this winding process (and drawing process) in this, and next part optical fiber is wrapped on the new reel.Yet the needs that interrupt drawing process at any time can cause some defective, and comprising the time forfeiture, from the melted material loss of precast rod and the possibility variation of drawing condition, for example the transient change owing to characterisitic parameter in this process causes.
On the other hand, for example fiber must be wrapped on the same reel fully, then substitutes each and twines part at the end cut staple, may be a mark is added in the fixed point of giving on each part, and is discerned subsequently.This operation even can not interrupt drawing process and carry out as in U.S. Patent No. 5,400, proposes already in 422 and describes.Yet it is insecure utilizing the different piece of mark identification fiber, because one or more such mark may be seen by leakage by accident under specified fiber release speed.In addition, this technology will have the responsible operator of pair identification marking usually in unclamping the process of fiber.
The applicant has been found that, comprise at fiber under the situation of the longitudinal component that differs from one another, if this fiber is by making the different winding pitch of its winding pitch that is adjacent part separately with each part correlation, then in unclamping the process of this fiber, identify these parts subsequently, can carry out with very little error possibility rapidly and automatically.The applicant is special to propose a kind of winding method that can interruptedly not carry out, thereby can avoid above shortcoming.
The applicant yet finds, for the possibility that will discern various pars fibrosa errors in unclamping the process of above-mentioned fiber reduces to minimum, preferably with periodic function this winding pitch is modulated.The variation of this winding pitch aspect is preferably undertaken by with same rule the speed that moves axially of reel in winding being modulated.If this fiber twines in such a way, then from unclamping the process of fiber, this reel identifies pars fibrosa inequality subsequently, undertaken by detecting the variation of twining pitch according to the present invention.
According to first aspect, the present invention relates to a kind of method of using on the support that fibre element is wound into, described fibre element comprises two longitudinal components with different qualities at least, described method comprises the step of above-mentioned fibre element being supplied with above-mentioned support, it is characterized in that it comprise make its separately the winding parameter value and the step of above-mentioned each part correlation, and its winding parameter value separately is different from the winding parameter value that is adjacent part correlation.
Particularly, above-mentioned make separately the winding parameter value and the step of above-mentioned each part correlation, comprise the winding pitch that makes separately and the step of above-mentioned each part correlation.
Particularly, above-mentioned make separately winding pitch and the step of above-mentioned each part correlation, comprise the step that makes separately modulating function and above-mentioned each part correlation of above-mentioned winding pitch.
Preferably be, the above-mentioned step that makes separately modulating function and above-mentioned each part correlation of above-mentioned winding pitch, comprise making separately that above-mentioned modulating frequency then defines (defing) fundamental frequency of periodic modulation function (main frequency) separately to the modulating frequency of above-mentioned winding pitch and the step of above-mentioned each part correlation.
Particularly, above-mentioned make separately winding pitch and the step of above-mentioned each part correlation, be included in carry out above-mentioned when fibre element is supplied with the support step, along giving fixed direction moves above-mentioned support with the speed relevant with above-mentioned winding pitch step.
Above-mentioned fibre element is supplied with the step of support, comprise by one and present parts the lead step of above-mentioned support of above-mentioned fibre element; As to alternative described above, above-mentioned make separately winding pitch and the step of above-mentioned each part correlation, be included in when carrying out above-mentioned guiding step, move above-mentioned step of presenting parts with the speed relevant with above-mentioned winding pitch along giving fixed direction.
Preferably be, above-mentioned fibre element is supplied with the step of support with constantly relevant with a finish time at the beginning, and comprise the time of measuring between the above-mentioned zero hour and the above-mentioned finish time, and make the time interval between the described separately zero hour and the finish time and the step of above-mentioned each part correlation.
Preferably be that above-mentioned fibre element is an optical fiber; And above-mentioned fibre element is supplied with the step of above-mentioned support, and produce above-mentioned optical fiber step and carry out simultaneously; Above-mentioned production stage then comprises the step of being pulled out above-mentioned optical fiber by a precast rod.
Above-mentioned production stage comprises sets parameters of technique process so that obtain the step fully of giving that giving of above-mentioned fibre element decided characteristic, and above-mentioned each part is all relevant with separately one group of above-mentioned parameter value.
In addition, preferred above-mentioned production stage is included in and above-mentionedly draws the measured process variable carried out in the optical fiber step and the step of signalling, gives and decides threshold value if one of above-mentioned variable surpasses one, and then corresponding alarm condition represents to have the existence of a pars fibrosa of defective; And above-mentioned make separately the winding parameter value and the step of above-mentioned each part correlation, comprise the above-mentioned winding parameter value and the above-mentioned relevant step of pars fibrosa that make separately with defective.
According to second aspect, the present invention relates to a kind of method that is wrapped in the fibre element different longitudinal portions on the support according to said method that is used to discern, described each longitudinal component has relative winding pitch separately, it is characterized in that it may further comprise the steps:
-unclamp above-mentioned fibre element from above-mentioned support;
-unclamp in the lasting process of step above-mentioned, detect the variation of above-mentioned winding pitch.
Particularly, the step of above-mentioned detection winding pitch variation may further comprise the steps:
-to unclamp in the lasting process of step above-mentioned, the parameter that duplicate measurements is relevant with above-mentioned winding pitch is so that obtain the successive value of above-mentioned parameter; And
The variation of-detection above-mentioned parameter value.
Preferably be that the above-mentioned method that is used to discern different longitudinal portions is further comprising the steps of:
-above-mentioned each parameter value that is obtained is compared with one group of value that is stored, and each value that is stored is relevant with one of above-mentioned longitudinal component; And
-on the basis of above-mentioned comparison, identify the longitudinal component relevant with the value that is obtained.
Preferably be that the step of the described parameter value variation of above-mentioned detection may further comprise the steps:
The value that-storage is obtained;
-successive value and the above-mentioned value that is stored of above-mentioned parameter compared; And
-in the time-continuing process of above-mentioned comparison step,, then interrupt the above-mentioned step of unclamping if above-mentioned successive value is different from the above-mentioned value of being stored.
Preferably be that the step of the described parameter of above-mentioned measurement comprises that detecting one gives and decide this fibre element is crossed in the zone actual point and above-mentioned zone one and give the step of deciding distance between the crossover point.
Select as another kind, the step of the described parameter of above-mentioned measurement comprises that detection gives the step of deciding angle between the direction from the direction and that this support unclamps fibre element.
According to the third aspect, the present invention relates to a kind of fibre element is wound into the device of using on the support, described fibre element comprises two longitudinal components with different qualities at least, said apparatus comprises:
-one supplies with the parts of presenting that above-mentioned support uses with above-mentioned fibre element; And
-one mobile device, be used for along one give the dead axle line with one give fixed translational speed move above-mentioned support and above-mentioned present parts arbitrary or another give fixed winding pitch so that obtain one;
It is characterized in that it comprises the unit that is used to control above-mentioned mobile device, be designed to control above-mentioned translational speed, so that (be different from be adjacent part correlation winding pitch) each longitudinal component of winding pitch and its separately is relevant.
Preferably be, one of above-mentioned at least winding pitch with one-period function modulate.
Preferably be that above-mentioned fibre element is an optical fiber.
According to fourth aspect, the present invention relates to a kind of device that is used to discern the different longitudinal portions that is wound into the fibre element on the support, described each longitudinal component has relative winding pitch separately, it is characterized in that it comprises:
-one unclamps the device that above-mentioned fibre element is used from above-mentioned support;
-one is designed the duplicate measurements parameter relevant with above-mentioned winding pitch, and produces the sensor device of the signal of an expression above-mentioned parameter; And
-one is designed to receive above-mentioned signal, and detects the processing unit that above-mentioned parameter changes on the basis of above-mentioned signal.
Particularly, above-mentioned processing unit comprises:
-one is used for the comparison subelement of the successive value of comparison above-mentioned parameter; And
-one telltale subelement, if above-mentioned continuous parameter value is differing from each other, the expression one new longitudinal component that is used to signal exists.
Preferably be, the sensor device is optical devices, and it has a sensitive area and the reference point on above-mentioned sensitive area, and is designed to detect in the above-mentioned sensitive volume point crossed over for above-mentioned fibre element and the distance between the above-mentioned reference point.
Alternatively, the sensor device is one to be designed to detect the direction and of unclamping fibre element from support and to give the device of deciding angle between the direction.
According to the 5th aspect, the present invention relates to the method that a kind of producd fibers element is used, described method comprises from a precast rod and draws out above-mentioned fibre element and form the step that this fibre element has two longitudinal components of different qualities, it is characterized in that it comprises is wound into above-mentioned two longitudinal components above one support, and makes separately winding pitch and each relevant step of above-mentioned two longitudinal components.
According to the 6th aspect, the present invention relates to the assembly that a kind of producd fibers element is used, comprise that one is designed to produce the process units of the fibre element of at least two longitudinal components with different characteristic, described assembly is characterised in that it also comprises a wind, be designed to receive fibre element, and be wound into above-mentioned fibre element on one support and make separately winding pitch and above-mentioned each part correlation from above-mentioned process units.
Particularly, above-mentioned wind comprises:
-one supplies with the parts of presenting that above-mentioned support uses along giving fixed feed direction with above-mentioned fibre element; And
-one axial moving device is used for giving along one and decides direction being the axial velocity relevant with the winding pitch that relates to described part to above-mentioned each part, moves above-mentioned support and presents any or another in the parts.
Preferably be that above-mentioned wind comprises a control module that is used to control above-mentioned axial velocity that links to each other with above-mentioned axial moving device.
Preferably be, above-mentioned process units comprises some sensor devices that link to each other with above-mentioned control module, and above-mentioned each sensor device is designed to detect the variable of technological process separately.
Preferably be, above-mentioned assembly comprises that also one is used to discern the device of the different longitudinal portions that is wrapped in the above-mentioned fibre element on the above-mentioned support, and described recognition device comprises:
-one is designed releasing device that above-mentioned fibre element is unclamped from above-mentioned support; And
-one is used to detect the pick-up unit that above-mentioned winding pitch changes in unclamping the process of above-mentioned fibre element.
Particularly, above-mentioned detection device comprises:
-one is designed to produce the sensor device of a signal relevant with above-mentioned winding pitch;
-one is designed to receive above-mentioned signal and obtains the processing unit of the above-mentioned winding pitch value of expression from above-mentioned signal.
Particularly, the sensor device is one to be designed to treat the optical sensor that above-mentioned fibre element is crossed over.
Preferably be, above-mentioned fibre element is an optical fiber, and above-mentioned process units is the control tower that wire drawing is used.
Further details can obtain from the description that the following accompanying drawing of following reference is done:
-Fig. 1 relates to a kind of control tower that is used to draw optical fiber formed according to the present invention;
-Fig. 2 represents to unclamp the device that fiber is used according to the inventive method from reel;
-Fig. 3 for clarity sake, with the variation of components list diagrammatic sketch 2 shown devices that take out;
-Fig. 4 represents the reel of the optical fiber that with good grounds the inventive method is twined on it with the form of simplified schematic;
-Fig. 5 represents to be used to modulate according to the inventive method the curve map of two periodic functions of this fiber winding pitch;
-Fig. 6 represents to relate to the process flow diagram of some step of the inventive method;
-Fig. 7 is the process flow diagram that relates to other steps of the inventive method.
Fig. 1 represents to be designed the wire drawing control tower 1 that carries out drawing optical fiber 2 from the precast rod 3 that gives preparation earlier.This wire drawing control tower 1 comprises many parts of aiming at along a vertical direction (" control tower " speech promptly goes out since then) basically.Selecting vertical direction is in order to carry out the key step owing to the drawing process that need utilize gravity to produce, so that therefrom can draw out the foundry goods of the melted material of optical fiber 2 from precast rod 3 acquisitions one.
In detail, this control tower comprises that a device 4, that is used to support and supply precast rod 3 is used to control the heating furnace 5 of precast rod 3 fusions, and pulls out the wire-drawing frame 6 of optical fiber 2 usefulness from precast rod 3, and the device 7 that is used to twine optical fiber 2.
There is one first diameter sensor 8 in the exit that is preferably in heating furnace 5, the optical sensor of interferometry type for example, and it is designed to produce the signal of an expression without any optical fiber 2 diameters of coating.This first diameter sensor 8 is preferably gone back the function of execution list planar defect detecting device, with the defective in detection fiber 2 glass, for example bubble or impurity.This first diameter sensor 8 for example can be French CE RSA, Park Expobat 53, Plan de Campagne, F13825, Cabries, the LIS-G type sensor that Cedex company produces.Such sensor is produced one first signal and secondary signal by special design, and the former is directly proportional with detected diameter value and the difference of giving between fixed diameter value, and the latter then represents the existence of arbitrary surfaces defective.
One cooling device 9 be arranged on heating furnace 5 and diameter sensor 8 below, for example can be to have to be designed to allow the type of the cooling chamber that cooling draught passes through.This cooling device quilt is with respect to the coaxial setting of wire-drawing direction, so that its optical fiber 2 that can be left heating furnace 5 passes through.Cooling device 9 for example can be a U.S. Patent No. 5,314,515 types of describing, and perhaps U.S. Patent No. 4,514, the type of describing in 205.This cooling device 9 can be equipped with one and be designed to provide cooling cavity temperature temperature indicative sensor (not shown).Because the draw rate of optical fiber so cooling device 9 must be able to allow optical fiber 2 promptly be cooled to be suitable for the temperature of subsequent processing steps, particularly is suitable for following surface applied usually than higher.Temperature in the cooling chamber is the technological parameter that can suitably change, for example by changing flowing of refrigerating gas, in order that change the characteristic of optical fiber 2.
First and second applying devices 10 with 11 along vertical wire-drawing direction be set at cooling device 9 below, and be designed when optical fiber 2 by the time deposit one first protective finish and second protective finish that covers on it respectively in the above.Particularly, each applying device 10 and 11 comprises that one is designed to give quantitative resin with one and is applied to corresponding coating element 10a and 11a on the optical fiber, the solidified cell 10b and the 11b (for example uviol lamp baking oven) that use with a corresponding cured resin, thereby a stable coating is provided.Amount of resin that each coating element 10a and 11a are applied and the temperature among each solidified cell 10b and the 11b are transformable parameter in drawing process, so that produce the optical fiber with different coating.Applying device 10 and 11 for example can be U.S. Patent No. 5,366, the type of describing in 527, and can comprise differences many with it, depend on the number of the protective coating that plan forms on optical fiber 2.
Can be equipped with corresponding second and the 3rd diameter sensor 12 and 13 in the exit of first and second applying device 10 and 11; for example U.S. Patent No. 4; 280; the type of describing in 827; it is provided to after corresponding first and second protective finish apply, and produces the corresponding signal of expression optical fiber 2 diameters.Diameter value that these signals for example can and record and the difference of giving between fixed diameter value are proportional.
Preferably be, control tower 1 also comprises a coating defect detector 18, be set at the 3rd diameter sensor 13 below, and be designed to detect on this surface coating existence, and produce the signal that an expression arbitrary surfaces defective exists as bubble, contraction or drum blister and so on defective.This detecting device 18 for example can be BETA LASERMIKE, 8001 Technology Blvd.Dayton, Ohio, 45424, the 3600 Flaw Detector types that USA company makes.
Wire-drawing frame 6 be set at applying device 10 and 11 below, and be preferably and have single-sheaved block or sister block type.Under this particular case, wire-drawing frame 6 comprises a motor driven single-sheaved block 14, is designed along this vertical wire-drawing direction drawing optical fiber 2.This wire-drawing frame 6 can be equipped with angular-rate sensor, is designed the signal that produces an expression pulley 14 angular velocity in its operating process.The drawing speed of the rotating speed of drawing process middle pulley 14 thereby optical fiber 2 is the technological parameter that can change in drawing process, with in order to form the pars fibrosa with different qualities.For example, the drawing speed of optical fiber 2 can be independently or with heating furnace 5 in the temperature variation that combines, in order that changing aspect optical fiber 2 internal stresss and/or changing in optical fiber 2 diametric(al)s.This drawing speed is preferably greater than 5 meter per seconds, and more desirable greater than 10 meter per seconds.
If need the pulling force of detection fiber 2 in drawing process, then control tower 1 can be equipped with a pulling force monitor (not shown), preferably is arranged between heating furnace 5 and the wire-drawing frame 6, and is designed to produce the signal of an expression optical fiber 2 pulling force.This monitor for example can be United States Patent (USP) 5,316, the type of describing in 562.
Diameter at optical fiber 2 in the drawing process takes place under the situation of undesirable variation, and diameter sensor 8 and 12 signal can be utilized to change automatically the drawing speed of optical fiber 2, so that obtain to give fixed diameter value again.In fact, if this diameter is reduced to below the predetermined threshold value, then drawing speed be reduced one with diameter reduce proportional amount; Simultaneously, if this increasing diameter is added to and is higher than another and gives fixed threshold value, then drawing speed improves one and adds proportional amount with increasing diameter.Use the example of diameter sensor signal and surface imperfection sensor, can be by United States Patent (USP) 5,551,967,5,449,393 and 5,073,179 provide.Diameter sensor can be with noted here different with surface imperfection number of sensors and configuration.
Wire drawing control tower 1 also comprises a processing and control element (PCE) 21, and its all parts with the sensor that provides along control tower 1 and detecting device and control tower 1 are electrically connected, and its operation can be from external control.Unit 21 is designed on the basis of giving the process parameter value of putting and on the basis of the signal that sensor and detecting device along control tower 1 setting produce, each step of control drawing process.Unit 21 and be attached thereto message exchange between each parts that connects, undertaken (for clarity sake by electrical interface, only express wherein three, promptly 22,23 and 24), above-mentioned interface can convert the digital signal that said units 21 produces to be suitable for operating each parts simulating signal (for example voltage), and the analog signal conversion that receives from sensor and detecting device can also be become be designed the digital signal of cause said units decoding (interpret).This element 21 also is designed the parameter value that will measure along the sensor and the detecting device of control tower setting and gives fixed threshold value and compare, and produces the alarm code A of j alarm condition of an expression under the occasion that one of threshold value is exceeded
j
Three electrical interface 22-24 shown in Fig. 1 are designed to allow between unit 21 and the wire-drawing frame 6 and exchange message between unit 21 and the wind 7.In detail, first interface 22 allows processing and control element (PCE) 21, both control signal has been sent to the angular velocity of the motor driven parts of wire-drawing frame 6 with control pulley 14, receives the information from the angular-rate sensor that is associated with above-mentioned wire-drawing frame 6 again.By second control interface of 23 expressions, both allowed unit 21 that control signal is sent to the rotational speed of parts 17 with control reel 16, receive information again from the angular-rate sensor that is associated with wind 7.The 3rd control interface 22 both allowed unit 21 that control signal is sent to parts 17 with the speed that control reel 16 edge axle 16a move, and received the information from the linear velocity trans that is associated with wind 7 again.
In the process that optical fiber 2 twines, the translation of reel 16 makes optical fiber 2 carry out spirality and twines.Alternatively, optical fiber 2 spiralitys are wound on the reel 16, can pass through to keep reel 16 axial restraints, and finish along direction 19b mobile pulley 19a with reel 16 parallel axes.This translation motion is to be finished by (the axial location control of the pulley 19a that unit 21 and axial location sensor (not shown) are detected) moving component 19c (only schematically illustrating with dotted line).Pulley 19a be fixed and reel 16 is removable and pulley 19a is removable and reel 16 is fixed both of these case under, optical fiber 2 is presented the direction to reel 16, equals to be parallel to himself in the space interval of reel 16 length and moves having amplitude.According in check mode optical fiber 2 is wound into the method for using on the reel 16, as follows with reference to flow chart description shown in Figure 6.
After optical fiber is drawn fully and twines, must unclamp from reel 16 in order to use it.In Fig. 2,30 expressions are a kind of to allow optical fiber 2 unclamp, identify the different piece of optical fiber 2 and these parts are wound into device on the reel 31 separately respectively again from reel 16.
This device 30 comprises parts (not shown), a processing and control element (PCE) 26, the optical sensor 33 that parts 25, that are used to support reel 16 and make its motion are used to support reel 31 and its corner is moved, comprise also that preferably one is used to regulate the device 34 of optical fiber pulling force, for example with Fig. 1 in the device 15 same types device.If desired, this device 30 comprises that also one is used for changing automatically the device of reel 31, and for example U.S. Patent No. 4,138, the type of describing in 069.
Processing unit 26 is designed to utilize the information that comprises among this signal S, so that the translational speed of reel 16 is regulated.In fact each moment this translational speed variable quantity and absolute value and the symbol of signal S proportional, thereby so that optical fiber 2 sensitive area by optical sensor 33 on predetermined crossover point reduces to minimum with signal S.
In each moment, the distance between actual crossover point and the predetermined crossover point depends on the law (spatial law) with space change relevant with the winding pitch of consider part.Therefore, thereby this signal S also has the translational speed of reel 16, will modulate according to the law that changes in time relevant with the law that changes with the space of domination winding pitch.
Fig. 3 represents that with schematic local mode the possibility of this releasing device 30 changes.Be different from device 30 with the 30 ' releasing device of representing among Fig. 3 and be, optical sensor 33 is replaced by a single-revolution pulley 37 (for example can be first pulley of tension 34) and an angular position pick up 38 (a for example scrambler).Pulley 37 is set at the front of reel 16, turns round so that receive optical fiber 2 and be designed around the axle 39 perpendicular to drawing in release process.Angular position pick up 38 is set between pulley 37 and the reel 16, and is designed detection fiber 2 to extend to the angle α of pulley 37 with respect to the direction (being represented by dotted lines) of Z-axis 16a.In unclamping the process of optical fiber, reel 16 keeps axial restraint, and all the winding pitch with described part is relevant so that the α angle is in each moment.Therefore, according to the similar mode of afore-mentioned, sensor 38 is designed to produce time progress (time progression) and the space of winding pitch and makes progress (spatial progression) relevant signal S '
e
The method that wire drawing platform 1 shown in Figure 1 and releasing device 30 shown in Figure 2 (or device 30 ' shown in Figure 3) have allowed to carry out a kind of robotization, be used to produce and twine optical fiber, and in unclamping the process of above-mentioned optical fiber, be used to identify these parts subsequently with different longitudinal portions.
In drawing the process of optical fiber, pars fibrosa with different qualities, can form by change one or more technological parameter (for example resembling the temperature in the heating furnace 5) automatic or non-automaticly according to the existence of defective in the optical fiber 2 in undesirable variation of technological process itself or the drawing process.For example optical fiber 2 can on its whole length be homogeneous and uniformly, except having one or more short line segment that defective maybe needs to change.Typical example is to describe in the previous U.S. Patent No. 4,163,370 that proposes, and wherein forms one and has the fiber segment of larger-diameter weak point, in order that improve optical fiber properties with modal dispersion.In interested some other example of reality, such as what describe in this patent preamble, this optical fiber can comprise mutually different many adjacent parts.In order to describe method of the present invention, the ubiquity example of optical fiber 2 is believed to comprise N longitudinal component P with different qualities
1, P
2..., P
N(wherein N 〉=2).
According to the present invention, in winding process, change, in order that the part that is adjacent is discerned for each its winding pitch of different fiber sections.In this manner, in the process of unclamping optical fiber 2 subsequently, each different part can be discerned according to its winding pitch.In fact according to the present invention, corresponding winding pitch p
1, p
2..., p
NWith P
1, P
2..., P
NThis N part correlation is selected above-mentioned these pitches, so that the part correlation that different winding pitches is adjacent.Twine pitch P
1, p
2..., p
NSelect according to predetermined law with the space change.More precisely, common segment P
1Winding pitch p
iBe the function of the horizontal ordinate x that records along 16 16a of reel, thereby can pass through function p
i(x) expression.Minimum value for winding pitch is to be established by the diameter that is wound optical fiber 2.The too high value of winding pitch is intended giving avoiding, and loses because of it can cause spaces a large amount of on the reel 16.Therefore the winding pitch value might be limited to a preferred range.The optical fiber that for example is about 0.25mm for diameter, preferred winding pitch scope can be between 0.3mm (selecting with reference to work limit difference) and 3mm.
Under the simplest situation, winding pitch p
1, p
2..., p
NCan have mutually different fixed value.For example, suppose that optical fiber 2 comprises four different part P
1, P
2, P
3And P
4, then its winding pitch can have following value: p
1=0.3mm; p
2=1.2mm; p
3=2.1mm; p
4=3mm.Yet fixedly the mensuration of winding pitch may be subjected to expecting the influence of factor, for example owing to optical fiber 2 is swung in winding or release process.Therefore, if optical fiber 2 comprises the part that several are different, and the pitch value of selecting in preferred interval is closer to each other, and then the different part of identification can become difficulty in the process of unclamping optical fiber 2.
In order to discern existing of many different fiber part independently with the highest precision, preferably its winding pitch according to one-period type function be carried out modulation.The modulation of this winding pitch can obtain by modulating according to a speed that reel in the winding process 16 is moved along its 16a with above-mentioned spatial function time corresponding function.By a kind of mode, if reel 16 is fixing vertically and pulley 19a can move along direction 19b, then this modulation is applied in pulley 19a above the speed that axle 19b moves.
The general cycle is that the fundamental frequency that the periodicity function of time s (t) of T has is f
o=1/T, and can represent by the Fourier series expansion:
Wherein k is assumed to round values, and:
The preferred function that this is used to modulate winding pitch comprises a low-order harmonic (the sinusoidal composition that promptly has multiple fundamental frequency), so that fundamental frequency f
oDraw easily.More preferably be, this periodic function is a sine function, thereby it is characterized in that single-frequency.
Therefore, with the modulating frequency f that coincides of fundamental frequency of selected specific cycle of function
Mod, relevant with the pitch of winding.
In order to discern different fiber sections, also may utilize from fixed function, sine function or have the dissimilar function of selecting the periodic function of some harmonic waves winding pitch is modulated.For example, first can twine with fixing pitch, and second portion can twine in order to the pitch of triangular function modulation, and third part can be twined in order to the pitch of sine function modulation, and so on.On the other hand, if it is homogeneous and uniform that optical fiber is essentially on its whole length, except for example forming along this optical fiber the part of predetermined number of situation as Bragg grating, then preferentially give this optical fiber with fixing winding pitch, and change its winding pitch together with part with different qualities, for example with one-period function it is modulated.Fig. 4 represents the winding that forms according to the technology of the present invention merely by way of example, and wherein the ground floor of this winding relates to fixing associated first a fiber section P of winding pitch
1, and the second layer relates to the second associated fiber section P of pitch of a usefulness one-period property FUNCTION MODULATION
2
Modulate with a predetermined periodic function in order to obtain winding pitch, unit 21 must carry out the modulated control signal according to the rule of being desireed with one and offer parts 17 (offering the travelling block 19a of these parts if it is movable).This signal must have a different symbol at every turn when the optical fiber 2 that is wound finishes one deck on reel 16.
Under the most general situation, what pass to reel 16 (perhaps pulley 19a) is used to twine P
iThe movement speed v of part
i(t), will be a fixterm and one modulated sum:
v
i(t)=v
o[1+F
l(t)] F wherein
l(t) for being selected to modulate P
iThe specific function of the winding pitch of part.As mentioned above, this function F
l(t) can be a fixed function or more complicated function, and be preferably the periodic function s (t) that is defined as above.
Modulating function F at sinusoidal pattern
l(t) under the simplest situation, be delivered to the movement speed v of reel 16
i(t) be the result of a fixterm and a sine term addition:
v
i(t)=v
o(1+Asen2 π f
lT) f wherein
lTwine P for being selected for
iThe modulating frequency f of part
ModValue.
Therefore, winding pitch p is carried out modulation according to the law that similarly changes in time:
p
l(t)=p
o(1+Bsen2 π f
iT) p wherein
o=v
oT
o
If the rotating speed of reel 16 is fixed, then this law that changes in time is converted into the law with the space change of equivalence, and wherein time t is replaced by the horizontal ordinate x that is recorded along reel 16 axis.Under the situation of more complicated periodic function, these will comprise a series of harmonic waves in time and with the law that the space changes.
Fig. 5 merely represents to relate to the P of first respectively by example
1With second portion P
2Winding pitch p
1(t) and p
2(t) time progress.This pitch P
1(t) and p
2(t) be utilized and have corresponding period T
1And T
2And corresponding fundamental frequency f
1=1/T
1And f
2=1/T
2Corresponding triangular form function s
1(t) and s
2(t) modulate.Possible frequency values is f for example
1=20Hz and f
2=8Hz.In represented example, winding pitch is at same minimum value P
Min=0.3mm and same maximal value p
MaxFluctuate between=the 3mm.
If necessary, the fluctuating range of the winding pitch value related with a part can be different from the fluctuating range of the winding pitch value of other parts.
The technology of utilizing periodic function that winding pitch is modulated, comparing with the situation that winding pitch is chosen to be constant value has very big advantage.In fact, if the fluctuation of winding pitch value is enough wide, with will twine and release process in the effect of the mechanical vibration that usually take place reduce to insignificant level, then have only very little error according to above-mentioned commercial measurement winding pitch.
The method according to this invention is described in detail as follows with reference to the process flow diagram in Fig. 6 and 7.This method is described with reference to the process of control optical fiber 2, and this optical fiber 2 comprises N longitudinal component P that links to each other successively
1, P
2... P
N, wherein each part have at least one can detect be adjacent the different feature of part.
In the initial step (square frame 100) of this method, technological parameter is transfused to unit 21.Particularly, for each longitudinal component P to be formed
i, import one group of process parameter value G
1, above-mentioned value is selected comes out, to obtain optical fiber 2 desirable characteristics.For each part P to be formed
1, intend the relevant law separately of winding pitch of part therewith with the space change, also be transfused to.Below, have only this with the law of space change and with basic modulating frequency f
ModFor the corresponding preferable case of the periodic function of feature will be considered.Therefore, winding pitch is different from the modulating frequency f separately that is adjacent part correlation
ModValue f
i, with each different piece P
iRelevant.
On basis, for handling and twine P for the speed of wrap of the imagination length of different piece and imagination
1, P
2... P
NThe time interval T of various piece
1, T
2... T
NAlso be determined.General time interval T
iBe defined as this part P
1The moment t that finishes of processing
jUnit 21 is equipped with an internal clocking, is used to measure from the drawing process time of the zero hour.Alternatively, replace pre-determining time interval T
1, T
2... T
N, might limit and be used for forming P
1, P
2..., P
NThe longitudinal component of the prefabricated rods 3 of part.In this case, P
lThe general moment t that section processes finishes
iIn drawing process, be carried out detection, and with the P of optical fiber
iThe finish time of the prefabricated rods part that part is therefrom pulled out is identical.
This parameter setting step and imagination (are different from an alarm condition and that can (on the basis of the signal that comes from the sensor that is provided with along control tower 1 and detecting device) detects to be used for discerning P for each possible process
1, P
2..., P
NPart) be used for modulating the modulating frequency f of reel 16 translational speeds
ModAnalog value f
AjInput block 21.In fact, modulating frequency f
ModAnalog value f
AjBe endowed each alarm code Aj.In frequency f
AjThe duration of last modulation is identical with the duration of alarm condition, and perhaps, if the alarm condition duration short especially (as under the detection case of surface defects), it can equal a predetermined time duration T
Aj
In case finish the input to this parameter, unit 21 just sends control signal corresponding to each parts of the control tower 1 that is attached thereto so that start drawing process.Particularly, unit 21 drives each parts, and at G
1Be established as on the basis of group technological parameter and draw the P of first
1Contemplated operating conditions (square frame 110).Meanwhile, its clocks of unit 21 starting, and give representative just in the variable i of processed fiber section to be worth 1.
One predetermined angular velocity of rotation ω
A, 1With a movement speed v
1Be endowed reel 16, and this movement speed v
1Equal:
v
1(t)＝v
o(1+Asen2πf
1t)
Suppose the swing circle T of pulley 16
oConstant, the P of first then
1The winding pitch that is wound equals:
p
1(t)＝p
o(1+Bsen2πf
1t)
In the process of drawing optical fiber 2, unit 21 constantly receives from the signal of sensor and detecting device and checks whether there is process alarm (square frame 120).
If there is not process alarm to have (square frame 120 select N), then t＜t is checked in unit 21 whether
i(wherein at the P of first
1Situation under i equal 1), whether promptly check P
iThe processing of part and winding must continue (square frame 130).If t＜t
i(square frame 130 is selected Y), if promptly the processing of described part is not still finished, then processing of this part and winding are proceeded and are not changed.On the other hand, if the processing of described part and twine and to finish (N of square frame 130 selects), then t＜t is checked in unit 21 whether
NIf promptly the drawing process of optical fiber 2 must continue, if perhaps reach home (square frame 140).If the moment t that processing finishes
NStill do not reach (square frame 140 is selected Y), then unit 21 makes the value of variable i increase by 1 unit, gives modulating frequency f
ModWith f
I+1Value, and selection and further part P
L+1Relevant technological parameter G
I+1(square frame 150).The change subsequently of these process conditions is so that obtain to handling P
L+1The condition that part is contemplated.Meanwhile, unit 21 is used frequency f through interface 23 with one
I+1The modulation signal of modulation reel 16 translational speeds sends to parts 17.If reel 16 axial restraints and pulley 19a move vertically, then this modulating frequency is used to modulate the translational speed of pulley 19a.Under each situation of two kinds of situations, frequency f
I+1All with new fiber section P
I+1Winding pitch relevant.
In drawing process, if unit 21 receives a signal (square frame 120 is selected Y) that is defined as j kind alarm condition from sensor and detecting device, then it produces corresponding alarm code Aj and gives this modulating frequency f
ModThe one relevant value f of alarm code therewith
Aj(square frame 170).One uses frequency f
AjThe modulated control signal sends to moving component 17 then, and winding pitch is carried out modulation by this frequency.This state is held up to alerting signal and stops, and perhaps alternatively, is held that alerting signal is pre-existing in after being received and P
lOne-period T when the condition of part correlation is rebuilt
Aj(square frame 120 is selected N) afterwards.
When being detected the moment t that finishes in order to the expression process
N(square frame 140 is selected N) in other words works as the decline P of optical fiber when reaching
NProcessed and when twining (square frame 160), this winding process stops.
When winding process finished, optical fiber 2 was wound into above the reel 16 fully.The various piece P of optical fiber
1, P
2..., P
NForm the winding layer of given number, wherein each layer is wound with himself winding pitch with the corresponding frequencies modulation.
From the process that reel 16 unclamps optical fiber 2, carry out by means of the device among Fig. 2 or Fig. 3, and as follows with reference to the flow chart description of Fig. 7.
The process of unclamping optical fiber starts (square frame 200) by giving reel 16 and 31 with corresponding predetermined rotational speed, and this speed is carried out to be selected to be wound into speed on the reel 31 so that the speed that optical fiber 2 unclamps from reel 16 equals optical fiber 2.The rotational speed ω of winding tube 16 in the release process
sCan with the rotational speed omega in the winding process
aDifference, ω usually
s=K ω
a, wherein K is a constant.Speed omega
sBe after the initial transient process of a weak point, to reach.
The process of unclamping from reel 16, optical fiber 2 will produce signal S (square frame 210) by it subsequently by the sensitive area of optical sensor 33.Same process occurs under the situation of another kind of sensor 38, and each consideration that relates to signal S subsequently is understood that also to can be applicable to signal S '.As explained above, signal S is carried out modulation according to the law that (winding pitch that is similar to described fiber section is modulated with the law that changes with the space) changes in time.Particularly, the signal S frequency f that is utilized to modulate
s, by means of equation f
s=Kf
ModWith the frequency f that is used to modulate described fiber section winding pitch
ModLinear.
First released part matches (coincide) with the part that last is wound, promptly with P
NPart or with alarm condition under the part that is wound match.
Under device 30 the situation, one receives signal S in Fig. 2, and unit 26 is just in the translational speed of the basic adjusted reel 16 of the absolute value of above-mentioned signal S and symbol.Particularly, its translational speed is carried out adjusting, so that the actual crossover point in the sensitive volume is moved to the approaching as far as possible fixed crossover point that gives, thereby the value of S is reduced to minimum.In this manner, the translational speed frequency f of reel 16
sModulate.Begin and carry out to comprise between the above-mentioned steps that produces signal S and regulate reel 16 translational speeds in release process through a short time cycle, with the frequency f of applying
sIn fact the speed of modulation reel 16 occur in after release process begins the subtransient of a weak point.In Fig. 3, under the situation of releasing device 30 ', comprise that the step of regulating reel 16 translational speeds does not exist.
First program in these steps (square frame 200-220), purpose is to discern the part that first unclamps, and gives following step cycle variable f one first value afterwards that is used for determining each continuous part.
In the process of unclamping optical fiber 2, unit 26 for example is used to detect the signal of the device (not shown) that whether has optical fiber on the reel 16, checks constantly whether the release process of optical fiber 2 is finished on (square frame 230).If release process is not finished as yet, if promptly reel 16 still comprises optical fiber to be released (square frame 230 select N), then this process will continue, and processing unit handles error signal S again, so that the extraction frequency f
Mod(square frame 240).Then with this frequency f
ModThe comparison subelement (not shown) of value by unit 26 with the value comparison (square frame 250) relevant with variable f.If frequency f
ModThe value consistent (square frame 250 is selected Y) of value and f, this means that new fiber section does not still exist, therefore can repeat and do not change just like above-mentioned step cycle (square frame 230-250).
On the other hand, if f
ModThe value different (square frame 250 is selected N) of value and f, this means that the unclamping of fiber section with different qualities begins.In this case, the process of unclamping optical fiber is interrupted (square frame 260), and unit 26 forwards to (by comparing f
ModValue and stored frequency values) identification new fiber section characteristic or the related with it alarm condition (square frame 270) of this frequency.Indication that will be totally released about above-mentioned part by its (not expression) signal transmission subelement (for example show subelement) by this unit 26 and the information that relates to new fiber section are (concrete as relate to the information of this fiber section characteristic then; If perhaps this fiber section is wound under alarm condition, the information of alarm condition then appears in winding process about it; Or relate to described in the winding process the detected information of any type flaw on the fiber section) offer operator's (square frame 280).At this moment the operator can get involved, so that cut off optical fiber 2 and contain the just reel 31 of released part (square frame 290) with blank reel replacement.Release process is restarted (square frame 300) then, and above-mentioned steps (square frame 230-250, also have 260-300 if necessary) repeat, till detecting optical fiber and being totally released (square frame 230 is selected Y), this release process finishes (square frame 310) in this case.
Claims (25)
1. the method for a producd fibers element (2) usefulness, described method comprise from a precast rod (3) and draw out above-mentioned fibre element and form two longitudinal component (P that this fibre element has different qualities
i) step, it is characterized in that it comprises above-mentioned two longitudinal components are wound into above the support (16), and make separately winding pitch (p
i) with each relevant step of above-mentioned two longitudinal components.
2. the assembly that the producd fibers element is used comprises that one is designed to produce at least two longitudinal component (P with different characteristic
i) the process units (2-5 of fibre element (2), 8-15), described assembly is characterised in that it also comprises a wind (7,21,22,23), be designed to receive fibre element, and above-mentioned fibre element is wound into a support (16) goes up and make separately winding pitch (p from above-mentioned process units
i) and above-mentioned each part correlation.
3. according to the assembly of claim 2, it is characterized in that described wind (7) comprising:
-one presents parts (19a) along predetermined feed direction with what above-mentioned fibre element (2) was supplied with above-mentioned support (16) usefulness; And
-one axial moving device (17,19c), be used for that (16a 19b) being the axial velocity relevant with the winding pitch that relates to described part to above-mentioned each part, moving above-mentioned support (16) and presents any or another in the parts (19a) along a predetermined direction.
4. according to the assembly of claim 2 or 3, it is characterized in that it comprises that one is used to discern the device of the different longitudinal portions of the above-mentioned fibre element (2) that is wrapped on the above-mentioned support, described recognition device comprises:
-one is designed releasing device (25,31,34) that above-mentioned fibre element (2) is unclamped from above-mentioned support (16); And
-one is used to detect the pick-up unit (26 that above-mentioned winding pitch changes in the process of unclamping above-mentioned fibre element (2); 33; 26,38).
5. according to the device of claim 4, it is characterized in that above-mentioned detection device comprises;
-one is designed to come the sensor device (33,38) of generation one and above-mentioned winding pitch associated signal (S, S ') on the basis of sensitizing range this point that above-mentioned fibre element is crossed over;
-one is designed to receive above-mentioned signal and obtains the processing unit (26) of the above-mentioned winding pitch value of expression from above-mentioned signal.
6. according to the device of arbitrary claim in the claim 2 to 5, it is characterized in that above-mentioned fibre element (2) is an optical fiber, and the control tower used for wire drawing of above-mentioned process units (1)
7. one kind is wound into the method for using on the support (16) with fibre element (2), and described fibre element comprises two longitudinal component (P with different qualities at least
i), said method comprises the step of above-mentioned fibre element being supplied with above-mentioned support, it is characterized in that it comprises to make its winding parameter (p separately
i) value and the step of above-mentioned each part correlation, and its winding parameter value separately is different from the parameter value that is adjacent part correlation.
8. according to the method for claim 7, it is characterized in that: the above-mentioned winding parameter (p that makes separately
i) value and the step of above-mentioned each part correlation, comprise the winding pitch (p that makes separately
i) with the step of above-mentioned each part correlation.
9. method according to Claim 8 is characterized in that: above-mentioned make separately winding pitch and the step of above-mentioned each part correlation, comprise the modulating function [s that makes separately above-mentioned winding pitch
l(t)] with the step of above-mentioned each part correlation.
10. according to the method for claim 9, it is characterized in that: the above-mentioned step that makes separately modulating function and above-mentioned each part correlation of above-mentioned winding pitch comprises the modulating frequency (f that makes separately above-mentioned winding pitch
i, f
Aj) with the step of above-mentioned each part correlation, above-mentioned modulating frequency defines the fundamental frequency of periodic modulation function separately.
11. the method according to arbitrary claim in the claim 7 to 10 is characterized in that: the above-mentioned winding pitch (p that makes separately
i) with the step of above-mentioned each part correlation, be included in and carry out above-mentionedly when fibre element is supplied with the support step, move the step of above-mentioned support with the speed relevant with above-mentioned winding pitch along predetermined direction (16a).
12. the method according to arbitrary claim in the claim 7 to 10 is characterized in that: above-mentioned fibre element is supplied with the step of support, comprise by one and present parts (19a) with the lead step of above-mentioned support of above-mentioned fibre element; And the above-mentioned winding pitch (p that makes separately
i) with the step of above-mentioned each part correlation, be included in when carrying out above-mentioned guiding step, move above-mentioned step of presenting parts along predetermined direction (19b) with the speed relevant with above-mentioned winding pitch.
13. the method according to arbitrary claim in the claim 7 to 12 is characterized in that: above-mentioned fibre element (2) is an optical fiber; And above-mentioned fibre element is supplied with the step of above-mentioned support, and produce above-mentioned optical fiber step and carry out simultaneously; Above-mentioned production stage then comprises the step of being pulled out above-mentioned optical fiber by a precast rod.
14. method according to claim 13, it is characterized in that: above-mentioned production stage is included in the above-mentioned measured process variable carried out in the optical fiber step and the step of signalling of drawing, if one of above-mentioned variable surpasses a predetermined threshold, then corresponding alarm condition represents to have the existence of a pars fibrosa of defective; And the above-mentioned winding parameter (p that makes separately
i) value and the step of above-mentioned each part correlation, comprise the above-mentioned winding parameter (p that makes separately
i) value and the above-mentioned relevant step of pars fibrosa with defective.
15. one kind is used for discerning the method that is wound into the different longitudinal portions of the fibre element on the support according to the described method of the arbitrary claim of claim 7 to 14, described each longitudinal component has relative winding pitch separately, it is characterized in that it may further comprise the steps:
-unclamp above-mentioned fibre element from above-mentioned support;
-unclamp in the lasting process of step above-mentioned, detect the variation of above-mentioned winding pitch.
16. the method according to claim 15 is characterized in that, the step that above-mentioned detection winding pitch changes may further comprise the steps:
-to unclamp in the lasting process of step above-mentioned, the parameter that duplicate measurements is relevant with above-mentioned winding pitch is so that obtain the successive value of above-mentioned parameter; And
The variation of-detection above-mentioned parameter value.
17., it is characterized in that it may further comprise the steps according to the method for claim 16:
-above-mentioned each parameter value that is obtained is compared with one group of value that is stored, and each value that is stored is relevant with one of above-mentioned longitudinal component; And
-on the basis of above-mentioned comparison, identify the longitudinal component relevant with the value that is obtained.
18. the method according to claim 16 or 17 is characterized in that: the step of the described parameter of above-mentioned measurement comprises the actual point of this fibre element leap in detection one presumptive area and the step that above-mentioned zone one is scheduled to distance between the crossover point.
19. the method according to claim 16 or 17 is characterized in that: the step of the described parameter of above-mentioned measurement comprises that detection unclamps the step of angle between the direction of fibre element and the predetermined direction from this support.
20. one kind is wound into the device of using on the support (16) with fibre element (2), described fibre element comprises two longitudinal component (P with different qualities at least
i), said apparatus comprises:
-one presents parts (19a) with what above-mentioned fibre element supplied with that above-mentioned support uses; And
-one mobile device (17,19c), be used for along a predetermined axial line with a predetermined translational speed move above-mentioned support and above-mentioned present parts arbitrary or another so that obtain a predetermined winding pitch;
It is characterized in that it comprises is used to control above-mentioned mobile device (17, unit 19c) (21) is designed to control above-mentioned translational speed, so that (be different from be adjacent part correlation winding pitch) winding pitch (p separately
i) relevant with its each longitudinal component.
21. the device according to claim 20 is characterized in that, one of above-mentioned at least winding pitch with one-period function modulate.
22., it is characterized in that above-mentioned fibre element (2) is an optical fiber according to the device of claim 20 or 21.
23. one kind is used for the device that identification is wound into the different longitudinal portions of the fibre element (2) on the support (16), described each longitudinal component has relative winding pitch (p separately
i), it is characterized in that it comprises:
-one unclamps the device (25,31,34) of above-mentioned fibre element (2) usefulness from above-mentioned support (16);
-one is designed the duplicate measurements parameter relevant with above-mentioned winding pitch, and produces the signal (S of an expression above-mentioned parameter; S ') sensor device (33; 38); And
-one is designed to receive above-mentioned signal, and detects the processing unit (26) that above-mentioned parameter changes on the basis of above-mentioned signal.
24. device according to claim 23, it is characterized in that described sensor device (33) is optical devices, it has a sensitizing range and the reference point on described sensitizing range, and is designed to detect the point of above-mentioned fibre element leap in the described sensitizing range and the distance between the above-mentioned reference point.
25. the device according to claim 23 is characterized in that, described sensor device (38) is a kind of device that is designed to detect angle between the direction of unclamping fibre element from this support and the predetermined direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98124573.1 | 1998-12-23 | ||
| EP98124573 | 1998-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1258010A true CN1258010A (en) | 2000-06-28 |
Family
ID=8233231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99126484A Pending CN1258010A (en) | 1998-12-23 | 1999-12-23 | Method for winding fibre element having different longitudinal portions |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP2000203870A (en) |
| KR (1) | KR100687213B1 (en) |
| CN (1) | CN1258010A (en) |
| AR (1) | AR021979A1 (en) |
| AU (1) | AU768294B2 (en) |
| BR (1) | BR9905963A (en) |
| CA (1) | CA2292975C (en) |
| NZ (1) | NZ501485A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479717A (en) * | 2021-07-07 | 2021-10-08 | 海南中坚电缆科技有限公司 | Process preparation method for automatic production of electric wire |
| CN114315123A (en) * | 2021-12-31 | 2022-04-12 | 南京春辉科技实业有限公司 | Drawing method of quartz optical fiber |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ501485A (en) * | 1998-12-23 | 2001-08-31 | Pirelli Cavi E Sistemi Spa | Winding different longitudinal portions of optical fibre onto reel at respectively different winding pitches |
| JP6695379B2 (en) | 2018-04-27 | 2020-05-20 | 株式会社フジクラ | Optical fiber winding method, bobbin wound optical fiber manufacturing method, optical fiber winding device, and optical fiber bare wire manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4163370A (en) * | 1977-11-21 | 1979-08-07 | Corning Glass Works | Controlling the drawing rollers to produce diameter perturbations in an optical waveguide |
| JPS61106381A (en) * | 1984-10-25 | 1986-05-24 | Matsuda Denshi Kogyo Kk | Method of multi-layer lease winding |
| JPH0275571A (en) * | 1988-09-09 | 1990-03-15 | Furukawa Electric Co Ltd:The | Cable winding device |
| US5209416A (en) * | 1988-10-28 | 1993-05-11 | Hughes Aircraft Company | High density filament winding and method for producing improved crossovers and inside payout |
| US5487806A (en) * | 1990-08-08 | 1996-01-30 | Viellard; Paul-Henri | Method for embodying a flexible tubular element impregnated with resin to be subsequently moulded |
| EP1013618A1 (en) * | 1998-12-23 | 2000-06-28 | PIRELLI CAVI E SISTEMI S.p.A. | Method and apparatus for winding and unwinding a fibre element having different longitudinal portions |
| NZ501485A (en) * | 1998-12-23 | 2001-08-31 | Pirelli Cavi E Sistemi Spa | Winding different longitudinal portions of optical fibre onto reel at respectively different winding pitches |
| US6371394B1 (en) * | 1998-12-23 | 2002-04-16 | Pirelli Cavi E Sistemi S.P.A. | Method for winding a fibre element having different longitudinal portions |
-
1999
- 1999-12-03 NZ NZ501485A patent/NZ501485A/en not_active IP Right Cessation
- 1999-12-21 CA CA002292975A patent/CA2292975C/en not_active Expired - Fee Related
- 1999-12-22 AU AU65410/99A patent/AU768294B2/en not_active Ceased
- 1999-12-22 BR BR9905963-0A patent/BR9905963A/en not_active IP Right Cessation
- 1999-12-22 JP JP11365283A patent/JP2000203870A/en active Pending
- 1999-12-22 AR ARP990106666A patent/AR021979A1/en unknown
- 1999-12-22 KR KR1019990060332A patent/KR100687213B1/en not_active IP Right Cessation
- 1999-12-23 CN CN99126484A patent/CN1258010A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479717A (en) * | 2021-07-07 | 2021-10-08 | 海南中坚电缆科技有限公司 | Process preparation method for automatic production of electric wire |
| CN113479717B (en) * | 2021-07-07 | 2022-07-19 | 海南中坚电缆科技有限公司 | Process preparation method for automatic production of electric wire |
| CN114315123A (en) * | 2021-12-31 | 2022-04-12 | 南京春辉科技实业有限公司 | Drawing method of quartz optical fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000203870A (en) | 2000-07-25 |
| NZ501485A (en) | 2001-08-31 |
| KR20000052550A (en) | 2000-08-25 |
| AR021979A1 (en) | 2002-09-04 |
| KR100687213B1 (en) | 2007-02-27 |
| CA2292975A1 (en) | 2000-06-23 |
| AU6541099A (en) | 2000-06-29 |
| AU768294B2 (en) | 2003-12-04 |
| CA2292975C (en) | 2008-05-20 |
| BR9905963A (en) | 2000-10-24 |
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