CN101868417A

CN101868417A - Be used to use the method and apparatus of tensile fiber of low speed, the high-throughput of the fibrous ring of coiling

Info

Publication number: CN101868417A
Application number: CN200780101652A
Authority: CN
Inventors: 利奥尼德·斯卢茨克; 维亚切斯拉夫·A·马里金; 利奥博夫·米亚斯尼科瓦
Original assignee: POLYMER FIBER ENTPR PARTNERSHI
Current assignee: POLYMER FIBER ENTPR PARTNERSHI
Priority date: 2007-09-21
Filing date: 2007-09-21
Publication date: 2010-10-20
Also published as: WO2009038568A1; WO2009038568A9; EP2200922A4; EP2200922A1

Abstract

The continuously elongated method and apparatus of the fiber of the fibrous ring form that is used to coil (polygon or the ring that wriggles for instance).Fibrous ring in succession is placed on a plurality of conveying-tensile members (CDM) [for instance continuously, screw thread ingot (54) or circulation loop chain (80) and (108) of rotating] receiving end on, these a plurality of conveying-tensile members are dispersed around the central axis layout and from this axis.The fibrous ring of coiling is transferred and the periphery that increases described fibrous ring by described CDM simultaneously is stretched along described central axis.Leading fibrous ring is taken off continuously and is transported away from stretcher with exit velocity at the output of described CDM.Heating chamber (11) and (148) surround the most of at least of described CDM.Like this, the fiber speed in the described drawing process comprises the sub-fraction of described exit velocity.

Description

Be used to use the method and apparatus of tensile fiber of low speed, the high-throughput of the fibrous ring of coiling

Technical field

The present invention relates to be used for fiber in tension, yarn or by the method and apparatus of natural resin, synthetic resin or their tape that is combined to form.For convenience, in the description of the invention below, will described method and apparatus be described according to fiber in tension.However, it should be understood that described method and apparatus can be used for stretching equally carries out any slender body element of this process.But even so, will drawing process of the present invention and equipment be described according to the stretching of fiber of the fibrous ring form of coiling.The fibrous ring that should be understood that described coiling is ring or the dish that fiber can be winding to the bonded assembly group in it.

Background technology

(in) the production, be included in spinning or the draw stage after extruding (extrusion) stage for instance, nylon, polypropylene and poly-ester fibres at the most polymers fiber.In described draw stage, usually at elevated temperatures by stretcher with described tensile fiber to the length that surpasses (in some cases, times over) their original length substantially.Described fiber is with speed V _FiberPass described stretcher, from beginning of described draw stage to finishing described speed V _FiberIncrease speed V _FiberBe along the linear velocity of the fibre axis of fiber point (if tensile fiber occurs on the curved surface, for instance, on crooked hot plate or the roller) in the drawing process then along the tangent line of fibre axis.Tensile fiber rate λ, it is the degree of tensile fiber, is provided by following formula

λ＝V _fiber2/V _fiber1，????????(1)

V wherein _Fiber1Fiber speed V when being the beginning in tensile fiber stage _FiberAnd

V _Fiber2Fiber speed V when being the end in tensile fiber stage _Fiber

The stretching of fiber makes them can obtain needed molecular orientation and structure, and they reach required intensity and other desired physical property to rely on it.As an example, representational λ is about 6 to 1 for commercial nylon fiber.Usually, λ is high more, and molecular orientation and tensile fiber performance (specifically being toughness and Young's modulus) are high more.

In the situation of continuous multistage drawing process, V _Fiber2Single speed when being the end in last tensile fiber stage, and V _Fiber1Single speed when being the beginning in the first tensile fiber stage.

Make stretching be reached the effect of business scope usually by one group of live-rollers of fiber buddle being delivered to another group live-rollers.Each group of received roller rotates with superficial velocity, and this superficial velocity is greater than the superficial velocity of preceding group of feed rolls.

In the situation of the fiber in tension that relies on live-rollers, we obtain

V _Fiber1=V _Surface1=V _IntletAnd (2)

V _fiber2＝V _surface2＝V _oulet，???????????????????(3)

V wherein _Surface1Be the linear surface speed of feed rolls,

V _Surface2Be the linear surface speed that receives roller,

V _IntletBe fiber entry speed, it is the single speed along the fibre axis that fiber is fed into feed rolls, and

V _OutetBe fiber outlet speed, its be along the fiber buddle draw stage that will stretch be transported to continuous fiber manufacture process next stage (stretch, heat setting, lax, in bulk or texture, curl, finish applications etc.) or the single speed of the fibre axis of reception wraparound.

Like this in traditional industrial drawing process, fiber outlet speed V _OutetWith fiber speed V _Fiber2Ratio be 1 to 1 (this ratio will be used to following discussion).

With the fibre transportation after the stretching after the draw stage in the situation that receives wraparound, we obtain

V _fiber2＝V _outet＝V _take-up????????????????(4)

V wherein _Take-upBe the speed of having got, it is the single speed (V in some cases, along the fibre axis of having got the fiber after the stretching that receives on the wraparound _Take-upBe higher than V a little _Fiber2And V _OutletSo that tension force to be provided when the fiber of having got).

Exit velocity V _OutletWith got speed V _Take-upDetermine the productive output of draw stage.Most of traditional business processes, especially in melt-spun flexibility-chain polymerization fibres (melt-spun flexible-chainpolymer fiber) field, the very high speed V with scope from hundreds of to a few km per minutes _Take-upSo that high-throughput to be provided.This means, in the business process of high-throughput, speed V _Fiber2And V _OutetAlso be high, just, the scope from hundreds of to a few km per minutes.

Another parameter is used to show the tensile fiber process, just, and draw speed or rate of straining V _Strain, it is the relative deformation (strain) of fiber in the unit time.Usually express rate of straining V with percentum per second (%/sec) _StrainAnd provide V by following formula _Strain

V _strain＝λ/T，????????????????????????(5)

Wherein T is a stretching time.

Rate of straining V in traditional business process _StrainBe high, just, percent hundreds of per second.

In the process of this traditional high fiber speed, high draw speed, the acceleration that the fiber experience is very unexpected and leave a roller at it and increase with the some place tension force that is delivered to higher speed roller subsequently.Must take care not make the fiber broken string with the unexpected increase of guaranteeing tension force.Like this, this traditional technology can be called as " tensile impact ", because its initial condition of described fiber buddle quickened to its final back unexpected " impact " of state experience that stretch when advancing described stretcher.Described " impact " quickens and high tension causes frequent fiber broken string and equipment to be shut down, high wastage and stop further fiber improvement.

Because high fiber speed, stretching time T is very short in most of high-throughput industrial process, just, for single phase stretches less than 1 second and for two or three stages stretched less than about 1-3 second.This causes " unbalanced " to stretch, and wherein fiber does not have time enough with the rising temperature around being heated to when being stretched, and stretches when fiber cross section is in high-temperature gradient.This so cause drawability and crystallinity reduces, high form in the cross-sectional plane and physical property gradient, high local overstress, the tensile property of reduction, and the unstable fiber of size that has high hot air shrinkage.This is a representative type especially for the fiber with high denier (denier is the weight number with 9000 meters fibers of gram expression) and yarn.In order to be provided for the extra time of heat setting, equipment that prior art need be separated, special use, very costliness and power consumption is to produce the fiber (U.S. Pat 5 of Vetter of dimensionally stable under the situation of the tensile property that does not reduce them, 522,161 (1996), people's such as Vetter U.S. Pat 5, these patents of 588,604 (1996)-following discussion).More generally, the distinct methods that is used for reducing shrinkage percentage is used in business process.Fiber suffers limited shrinkage percentage when moving through moment, and this moment is in the end after the draw stage.When so doing, initial modulus, middle modulus and toughness have been reduced.

Above mentioned commercial drawing process people can be produced have the stretching that is close with those fibers and the polymer fiber of other physical property by the drawing process manufacturing of laboratory scale low fiber speed, low draw speed, long stretching time and non-impact.This laboratory scale stretching can be known as " uniformly " or " equilibrium " stretches, and wherein stretching time T is sufficiently long so that fiber is heated to ambient temperature, when it is stretched, has the low temperature gradient in fiber cross section.This causes the form and the physical property of the unanimity in the cross-sectional plane.These laboratory scale experiments obtain more effective form and change " low orientation-polymer system of high orientation " and good physical property.For example, the mol wt of the toughness of laboratory scale flexible chain, rule, melt-spun polymer sample be than those high 1.5-2 of traditional commercial fibres doubly and initial modulus be than high several times of the initial modulus of traditional commercial fibres.(as an example, at W.N.Taylor, JR. and E.S.Clark, " the SuperdrawnFilaments of Polypropylen " of Polym, Eng, Sci., 18, can see the tensile property of laboratory scale mekralon among the 518-526 (1978).Presented the comparison of the tensile property of these results and commercial polypropylene fiber in the Table VI below).For this big gap between the performance that overcomes bench scale and commercial size polymer fiber, need exploitation one new mode.

And, within present fiber industry, another big gap is arranged, just, low cost, low performance, conventional mol wt, melt-spun, flexible-chain polymer fiber are (for instance, polyethylene, polypropylene, polyester, nylon etc.) tensile property be significantly less than expensive, High Performance, all aromatic polymer fiber (for instance

DuPont and

_ Teijin) and super high molecular weight, molten spinning (solution-spun), aliphatic polymer fiber (for instance, Honeywell and

DSM) tensile property.The low cost, the high-performance polymer fiber that have improved in fact stretching and other physical property of producing a new generation by industrialization ground are (most probable, flexible chain, conventional mol wt, melt-spun) fills up the huge challenge that this gap is fibre science and technology.By being incorporated in the industry, laboratory scale achievement in research (top mentioned) can realize this point.For the different flexible chains with different tensile property theoretical values, the polymer fiber of conventional mol wt, (just, has the speed of getting V from hundreds of to a few km per minute scopes at the high-throughput industrial process _Take-up) in obtain the tenacity of fibre of about 1-2GPa (12-22gpd) and approximately the initial tensile modulus of 20-100GPa (250-1000gpd) will be very attractive.In mentioned in the above Taylor and the work of Clark, the toughness that is obtained the melt-spun in laboratory scale experiment, the polypropylene filament of conventional mol wt is that about 1GPa (12gpd) and the initial modulus that is obtained are 22GPa (270gpd) (referring to following Table VI).

Any company that makes progress in this field will have huge advantage the present and the future aspect the competition.As far as we know, the fiber industry by the end of the present U.S., Asia or Europe does not also obtain obvious improvement in this field.

Some effort have been carried out in the prior art to improve traditional industrial drawing process.

In people's such as Goggin U.S. Pat 2,372,627 (1945), people's such as Swalm U.S. Pat 2,788,542 (1957), and the U.S. Pat 3,978 of Sussman, 192 (1976), US4,891,872 (1990), US4,980,957 (1991), US5,339,503 (1994), and US5, introduced the method and apparatus that is used for the stretching that plant-scale fiber increases gradually in 340,523 (1994).The stretching of Zeng Changing is by being divided into little step with traditional commercial drawing process gradually, normally 10-30, just, the fiber in tension on the surface small step or smooth that has at a pair of conical rollers with tilt axis has improved traditional commercial drawing process.

People's such as Beck U.S. Pat 4,967,457 (1990) has disclosed a kind of device that is used to extend thermoplastic fibre.In this patent, fiber moves through and is arranged in interior conveying mechanism of heating chamber and a plurality of rollers that are not activated between the drawing mechanism.Some rollers have lock, and several stretch zones in succession are provided.

Compare with traditional method, method of the present invention all provides longer stretching path and stretching time T and lower rate of strain V _StrainYet with the same at traditional drawing process, fiber when being stretched, passes at a high speed stretcher and at the V of end of draw stage _Fiber2=V _Outlet(in other words, exit velocity V _OutletWith fiber speed V _Fiber2Ratio be 1 to 1).If the fiber after stretching after described draw stage is transported to reception wraparound, V _Fiber2=V _Outlet=V _Take-upReason is economically impelled the V that maintains speed _Fiber2, V _Outlet, and V _Take-upHigh as much as possible, just, in scope, for high-throughput is provided from hundreds of to several thousand m/min.

For two kinds of methods,, yet in each stretching step or zone, still remain higher although " impact " acceleration is reduced.In the situation of high-throughput process, stretching is " lack of balance ", and just, its stretching time is still lacked (several seconds), and it is not enough to fiber (especially high denier's fiber) is heated to ambient temperature in drawing process.In the situation of the stretching that increases gradually, fiber only is being stretched on the surface at them between the roller and not when advancing overstretching equipment.The only about half of degree of the dwell time that this causes stretching time to reduce to reaching in this equipment.When fiber moves through stretcher, stretch and begin and stop.The stretching of Zeng Changing is not uniformly and can be known as " intermittently stretching " like this, gradually.

U.S. Pat 3 at Erb, 426,553 (1969), the U.S. Pat 3,774 of Richter, 384 (1973), people's such as Simpson U.S. Pat 4,414,756 (1983), the U.S. Pat 5 of Vetter, 522,161 (1996) and people's such as Vetter U.S. Pat 5,588, advised being used for fiber is wound up into around the ring of the coiling of feedway in 604 (1996) for the fiber heat setting, with high dwell time these fibrous rings were carried heating chamber at a slow speed, launch these fibrous rings by this feedway then, and at high speed has been got the technology of fiber.Yet method and apparatus of the present invention is not for the tensile fiber design-calculated and can not be used for tensile fiber.

The U.S. Pat 2 of Sordelli, 302,508 (1942) have disclosed a kind of equipment that has the winder form of common form of frusto-conical substantially, and it impels the wire material in the spiral coil series that is distributed on this equipment to reel towards the end opposite with maximum gauge from its end with minimum diameter when being configured to around its rotational.Described wire material be wound up in a continuous manner on this equipment and it after described circle series is advanced from its expansion; During moving, the progressive stretching action that described material experience is continuous, it is increased to its length to a certain degree thus, and this degree depends on the architectural feature of described equipment.Described winder (winding frame) comprises frame member and a plurality of overhang roll that rotates around central axis, each is rotatably mounted described frame member at one end described a plurality of overhang roll, the axis of described roller with respect to described central axis be disperse with deflection.The live-rollers of deflection is carried these circle fiber in tensions along described central axis simultaneously by the described spiral coil that expands.

In this invention, described fiber passes stretcher with low speed stretching path and stretching time T and the lower rate of strain V longer than traditional industrial drawing process is provided _StrainYet when adopting on industrial scale, this equipment has some shortcomings.They are following:

(1) design is as the component part that rotates winder, around they axis simultaneously around central axis rotate to have the conveying-tensile member (being subjected to driven roller) with cantilever deflection that disperse be complicated.

(2) angle of divergence of the conveying-tensile member of this equipment be fix and can not change the tensile fiber rate, if it needs, change the tensile fiber rate by changing the angle of divergence.

(3) when stretching a large amount of fibrous rings (up to hundreds of) especially (for instance in high extensibility, 5x and Geng Gao), high denier's long filament, and under the situation of present high-tenacity fiber, (it is a cantilever to described conveying-tensile member, that disperse and with respect to the central axis deflection) undercapacity to be can bear the high tensile force in the drawing process.A large amount of rings (100-200 even more) are necessary with at high exit velocity V _OutletWith provide long stretching time T and low strain rate V under the situation of productive output _Strain[referring to following equation (32)].Based on identical reason, the equipment of Sordelli has such limitation: be long to place a large amount of rings.The equipment of Sordelli also has such limitation: because the design of driver train (gear case) is to drive described conveying-tensile member and fibrous ring along the possibility (referring to following) of described conveying-tensile member to lower slider, for high extensibility (5x and higher), must provide the height of conveying-tensile member to disperse and in the major diameter (and periphery) of the leading fibrous ring at delivery end place.

(4) in the equipment of Sordelli, described conveying-tensile member (roller) have the smooth surface that covered by rubber or other material with improve friction and prevent described fibrous ring on the surface of described member to lower slider.In the sort of situation, it is difficult finding the coating that can operate under interior essential for the actv. hot-stretch of the fiber rising temperature of heating chamber.Do not having under the situation of coating, described probably ring will be along described conveying-tensile member to lower slider, especially in following situation, (i) higher the dispersing of necessary conveying-tensile member for higher extensibility more (ii) has the poly-mer of low-friction coefficient; More (iii) be applied in the finishing in the fiber manufacture process.

(5) the operation of equipment inconvenience of Sardelli, just, be difficult to fibre end is loaded in this equipment to begin drawing process and to be difficult to restarting described equipment after the fiber broken string, and, in the situation of fiber broken string, the end of broken string can easily be wound on the conveying-tensile member (roller) of rotation causes significant operational issue.

Therefore, the equipment of Sordelli has significant disadvantage aspect commercial viability.

Summary of the invention

The present invention relates to the fiber of the fibrous ring form that is used to coil or by the low fiber speed of natural resin, synthetic resin or their the similar flexible member that is combined to form, low draw speed, high-throughput, uniform, continuously elongated method and apparatus.As top mentioned, the fibrous ring of coiling is that fiber can be by the ring or the volume of the group that is connected of coiling formation.

Fiber is fed in the stretcher with entrance velocity, and described stretcher comprises conveying-stretching structure, and described conveying-stretching structure comprises a plurality of conveying-tensile members (the screw thread ingot or the endless chain of rotation for instance) of arranging around central axis.Described conveying-tensile member has receiving end and mouth, and receiving end and mouth are spaced apart along described central axis, makes distance between mouth and the central axis greater than the distance between receiving end and the central axis.The fibrous ring of coiling is placed on the receiving end of mobile conveying-tensile member continuously.Fiber in tension is carried these rings along described central axis from described receiving end to described mouth ground simultaneously to described conveying-tensile member lentamente by the periphery of the described fibrous ring that expands.Like this, the layer of being made up of the fibrous ring (ring circular or serpentine for instance) of coiling is formed on described conveying-tensile member.Preferably, the point (for instance, around described central axis rotate the fiber circular rings lentamente) that moves described fibrous ring along fibre axis prevents that fibrous ring and described conveying-tensile member have fixing contact point.

The fibrous ring of described coiling, when being transferred and stretch, the temperature of using the heating chamber be supplied with hot air, hot inert gas or superheated steam to make it stand to raise.

At described output, the preceding lead ring of the fiber after the stretching is one after the other got rid of.Described fiber is by the exit velocity V with the scope from hundreds of to a few km per minutes _OutletBe transported to the next stage of fiber manufacture process or be transported to the reception wraparound.

Compare with existing industrial process, drawing process of the present invention has one or more following advantages: at identical or higher fiber speed V _OutletAnd V _Take-upAnd elongated significantly stretching time T, lower rate of strain V during productive output _StrainAnd the pulling force in the lower draw line.This has opened with the prior art of industrial fiber technology and has compared the physical property that has significantly improved the coml fiber, has the gate of still less broken string, equipment downtime still less and waste still less.

Goal of the invention

The continuously elongated new mode and the equipment that are used for polymer fiber that the purpose of this invention is to provide the shortcoming of avoiding prior art.

1. the purpose of this invention is to provide and be used for new commercial run and the equipment that continuous fiber stretches, it satisfies two requirements being thought contradiction by fiber industry, especially melt-spun flexible-chain polymer fiber art:

(a) requirement of fiber industry--have the high exit velocity V of scope from hundreds of to a few km per minutes _OutletWith got speed V _Take-upWith provide high-throughput and

(b) requirement of polymer fiber science--long stretching time T and low strain rate V is provided _Strain, it is to obtain actv. " to hang down the transition of orientation-Gao orientated polymer system " and produce high-performance fiber necessary.Stretching time T need be sufficiently long (for instance, from several seconds to tens seconds scope) with the rising temperature around drawing process fiber being heated to and have the low temperature gradient and evenly form and physical property in fiber cross section.Rate of strain V _StrainNeed be (scope from several %/sec to tens %/sec for instance) at least than low one or two order of magnitude of rate of strain of industrial process.

2. another object of the present invention provides a kind of continuously elongated new commercial run and equipment that is used for polymer fiber (flexible chain and all aromatic), it can improve the tensile fiber performance (just significantly, toughness, Young's modulus, middle modulus, broken string rate elongation etc.), described tensile property approaches with low strain rate V _StrainWith obtain in the laboratory experiment of long stretching time T those.Especially, different polymer fibers for theoretical value with different tensile properties, this will cause toughness with about 1-2GPa (12-22gpd) of a new generation and the approximately exploitation of the low cost, High Performance industrial copolymer fiber of the initial tensile modulus of 20-100GPa (250-1000gpd) (most probably melt-spun, conventional mol wt, flexible chain).

3. another object of the present invention provides and is used for the more failure-free industrial process that continuous fiber stretches under situation not unexpected, that " impact " quickened.Compared with prior art, this process will cause the lower pulling force in the draw line, less broken string, and less equipment is shut down, and less waste.

4. extra purpose of the present invention provides new commercial run and the equipment that is used for continuous tensile fiber, it will produce fiber dimensionally stable, low-shrinkage not using under the situations of expensive and extras power consumption, keep improved physical property simultaneously, example initial modulus as mentioned above, middle modulus and toughness.This can cause saving significantly the possibility of financial charges, expenditure of energy and less industrial space.

5. further purpose of the present invention is a kind of new commercial run and equipment that is used for the continuous fiber stretching of exploitation, (a) in some cases, compares with existing industrial process, by the speed V that increases export _OutletWith got speed V _Take-upThe productive output of increase significantly is provided and (b) keeps existing or improved physical property, routine initial modulus as mentioned above, middle modulus, toughness, and shrinkage percentage.

6. in order to realize top mentioned purpose, the objective of the invention is to develop a kind of new commercial run and equipment that is used for continuous tensile fiber, it provides the exit velocity V greater than 1 to 1 _OutletWith fiber speed V _{(fiber) max}Ratio (for instance, being preferably in from about 10 to 1 to about 9000 to 1 scope), fiber speed V _{(fiber) max}Be fiber speed V in the drawing process _FiberPeak.In the above in the prior art of being discussed, fiber speed V _{(fiber) max}Fiber speed V when being the draw stage end _Fiber2, it equals V _OutletLike this, in the prior art, V _OutletWith V _{(fiber) max}Ratio be 1 to 1.

By with reference to subsequently description and accompanying drawing, further will to become be conspicuous for purpose and advantage.

Description of drawings

In the accompanying drawings, but closely-related accompanying drawing has identical numeral has different inferiors.

Figure 1A is a longitudinal view, shows an embodiment of the invention, and wherein conveying-tensile member is the screw thread ingot that rotates.

Figure 1B shows, and in the schematic section drawing that the line I-I in Figure 1A obtains, is arranged to the screw thread ingot of the rotation of equilateral hexagon.

Fig. 1 C shows, and in the schematic section drawing that the line II-II in Figure 1A obtains, is used to be arranged to the sprocket wheel of screw thread ingot of the rotation of equilateral hexagon.

Fig. 2 A is a longitudinal view, shows another embodiment of the present invention, and wherein each conveying-tensile member partly is made up of the several cycles loop chain.

Fig. 2 B is the planar view of partial schematic, shows the layout of conveying-drawing chain of the embodiment of Fig. 2 A.

Fig. 2 C is the partial schematic diagram of conveying-drawing chain of Fig. 2 A, has the fiber displacement member that comprises the guiding semi-ring that is used for the controlling fiber loop mapping.

Fig. 2 D is the partial section that the line I-I along Fig. 2 A obtains, and shows to be used to carry-driver circuit of drawing chain, wherein for clear some parts that omitted.

Fig. 3 A is a longitudinal view, shows another embodiment of the present invention, and wherein each conveying-tensile member is made up of the circulation loop chain of pair of parallel.

Fig. 3 B shows, and in the schematic section drawing that the line I-I along Fig. 3 A obtains, is arranged to the many to chain of equilateral hexagon.

Fig. 3 C is mounted in the partial view of the roller on the conveying-drawing chain of embodiment of Fig. 3 A.

Fig. 3 D is mounted in the partial view of the roller on the conveying-drawing chain of embodiment of Fig. 3 A.

Fig. 3 E is the partial section that the line II-II along Fig. 3 A obtains, and shows to be used to carry-driver circuit of drawing chain, wherein for clear some parts that omitted.

Fig. 3 F is a partial view, shows the driver circuit of the roller that is used to support fibrous ring.

Fig. 3 G is the partial section that the line III-III along Fig. 3 A obtains, wherein for clear some parts that omitted.

Fig. 4 A is a longitudinal view, shows another embodiment of the present invention, and wherein whole conveying-stretching structure rotates around central axis.

Fig. 4 B there is shown the sprocket wheel that is used to drive the conveying-drawing chain that is arranged to equilateral hexagon in the schematic cross section that the line I-I along Fig. 4 A obtains.

Fig. 4 C is the partial section that the line II-II along Fig. 4 A obtains, and shows to be used to carry-driver circuit of drawing chain, wherein for clear some parts that omitted.

Fig. 5 A is a longitudinal view, shows another embodiment of stretching of the fiber of the sinuous loop type that is used to coil of the present invention.

Fig. 5 B is the fragment map of observing along the arrow A of Fig. 5 A.

Fig. 5 C is the partial section that is installed in a roller on conveying-drawing chain that the line I-I along Fig. 5 B obtains.

Fig. 6 A and 6B be when ring spended time Δ T when central axis passes apart from d, the fibrous ring periphery is from L _iBe increased to L _I+1Scheme drawing.

Fig. 7 shows at ingot or roller by rotating, and fiber disc clockwise rotates the linear velocity of fiber point in the situation around central axis.

Fig. 8 shows the stress-strain behavior of the mekralon that is stretched by method of the present invention; A-sample 1, b-is from the sample 4 of Table IV-VI, the commercial technology that c-is traditional.

Reference numeral in the accompanying drawing

11 heating chambers, 72 bevel gears

12,14 support shell 74 bevel gears

13,15

bearing

76a, 76b fiber displacement member

16,18 backup bearings, 77 guiding semi-rings

20,21 axle drive shafts, 78,78 ', 78 ' support component

Guiding groove 80 chains in the 20a first

Guiding groove is 82 in the 21a the 3rd

22 fiber roll are around

flier

84,86 bevel gears

88 of 22a (fiber roll around flier) outlets

Guiding groove 90 wide gears in the 22b second

24 fibers launch 92 of fliers

24a (fiber launches flier)

inlet

96,97 support components

Guiding groove 98 rollers in the 24b the 4th

25,25a driven wheel 98a peripheral groove

G fiber 100 gears

26 feed rolls, 102 ball-bearing casings

27,104 of 27a electro-motors

28 conveying rollers 106, the 106a pin

28 ' roller, 108 chains

30 counterweights 110 support shell

32 tubular supporting pieces, 112 rollers

34 first sun gears, 114 chains

35 pinion carriers, 116 support components

35,38 118 sprocket wheels

40,42 planet pinion gears, 120 rollers

44 second sun gears, 122,122 ' feeding and take off roller

46,48 radial arms, 124,126 rollers

49 radial arms, 124 ', 126 ' roller

50 guide slit, 128,128 ' counterweight

52,53 bearings, 130,130 ' roller

54 ingots, 132,132 ' feeding and take off flier

54a, 54b shaft portion 134,134 ' guiding piece

55 136,136 ' spring

56,57 sprocket wheels, 138,138 ' piston

58,58a chain 140,140 ', 142 screw actuators

59 141,141 ', 144 cores

60 sprocket wheels, 146 electro-motors

61 Hooke's couplings, 148 heating chambers

62,62 ' 62 ' radial arms, 150 sprocket wheels

66,66a, 152 of 66b chain parts

68 sprocket wheels, 154 ball-bearing casings

69 156 spacers

68 ' dual boot sprocket wheel, 160 sprocket wheels

70,70 ', 70 " radial arm 162 circular grooves

71,71 ', 71 ", 71 " ' radial arm

The specific embodiment

By following embodiment the present invention is shown further, it is considered to its scope is applied qualification never in any form.On the contrary, will more clearly realize that, those skilled in the art are appreciated that the description that is equal to of various other embodiments, modification and it under the situation of the scope that does not break away from spirit of the present invention and/or appended claims after having read the description here.

Embodiment of Figure 1A-1C-

Continuously elongated an embodiment of the invention of fiber of the fibrous ring form that is used to coil have been shown in Figure 1A-1C.Figure 1A shows the longitudinal view that is used for the equipment of tensile fiber of the present invention, it has following major part: (a) be used to carry and simultaneously drawing godet around the conveying-stretching structure of fiber G of fibrous ring form, (b) be used for fiber G being fed into conveying-stretching structure and when tensile fiber begins will be in succession with entrance velocity, the fibrous ring of coiling is placed to the feed arrangement around described conveying-stretching structure, (c) be used for the device that takes off that fiber buddle tensile fiber equipment tensile fiber end takes off leading fibrous ring continuously and will stretch with exit velocity from conveying-stretching structure after is transported to the next stage of fiber manufacture process or receives wraparound, (d) be used for driving conveying-stretching structure, feed arrangement and take off device parts driver train and (e) be used at the heating chamber 11 of carrying and add during fiber in tension thermal fiber G.For their detailed description referring to following.

(a) described conveying-stretching structure comprises six ingots (spindle) 54, and described ingot 54 comprises shaft portion 54a and 54b and screw thread or spiral groove.Ingot is arranged to the mouth that is used to receive the receiving end of fiber and is used for exporting (delivery) fiber around central axis and having, and described receiving end and described mouth are all spaced apart along central axis.Described mouth is isolated more farther from described central axis than described receiving end.(Figure 1B) described ingot 54 is disposed in the equilateral hexagon and is oriented to and becomes variable angle of divergence alpha (Figure 1A) (is identical for all ingots) with central axis when observing in cross-sectional plane, this means that ingot is positioned at the plane of dispersing from described central axis.

Described conveying-stretching structure comprises

support shell

12 and 14, backup bearing 16 and 18, bearing 13 and 15, bearing 52 and 53,

axle drive shaft

20 and 21, tubular supporting piece 32 (forming), and

radial arm

46,48,62,62 ' and 62 by two parts " (each arm all has six).Described radial arm is arranged in the equilateral hexagon when observing in

cross-sectional plane.Bearing

16 and 18, it is installed in respectively in

shell

14 and 12, respectively an end of an end of pivot shaft 20 and axle 21.Two bearings 13 and two bearings 15 are installed in the tubular supporting piece 32.They are

pivot shaft

21 and 20 respectively.Strut member 32 supports

radial arm

46,48,62,62 ' and 62 ".Arm 48 backup bearings 52.Bearing 52 can be moved and be fixed in the guide slit 50 of arm 48 by the guide slit 50 in arm 48, and the angle α of ingot 54a can be changed.Arm 62 backup bearings 53.Bearing 53 and 52 supports the shaft portion 54a and the 54b of ingot 54 respectively.Arm 62 ' and 62 " to support ingot 54 sagging to prevent.

Described conveying-stretching structure comprises stabilizing mechanism, and it prevents that conveying-stretching structure from rotating (so that it is more accurate, its parts are supported by tubular supporting piece 32) around central axis.Described stabilizing mechanism is positioned in the receiving end place of ingot 54.It comprises pinion carrier 35,

axle

36 and 38, a pair of planet pinion gear 40, a pair of planet pinion gear 42, first sun gear 34 and second sun gear 44.

Pinion carrier 35 is fixed to axle 20,

axle

36 and 38 is installed on the frame 35 in order to rotate, and planet pinion gear is fixed to axle 36, and planet pinion gear 42 is fixed to axle 38, first sun gear 34 is fixed to tubular supporting piece 32, and second sun gear 44 is fixed to support shell 14.

(b) described feed arrangement comprises a pair of driven feed rolls 26, fiber roll guiding groove 22b, polyfluortetraethylene pipe (not shown), frame 35 and axle 20 in the guiding groove 20a, second (frame 35 also is the parts of conveying-stretching structure with spools 20, referring to top) in flier (flyer) 22, outlet 22a, first.Flier 22 is fixed to frame 35 at the receiving end place of ingot 54.Flier 22 has outlet 22a and has the second guiding groove 22b that is communicated with the first guiding groove 20a of the end of passing described axle 20 and described pinion carrier 35 at its free end.Described polyfluortetraethylene pipe (not shown) is inserted among groove 20a and the 22b up to outlet 22a, and fiber passes described groove with very little friction.

(c) the described device that takes off comprises that a pair of driven conveying roller 28, roller 28 ', counterweight (weight) 30, fiber launch guiding groove 21a in flier 24, the inlet 24a, the 3rd, the 4th interior guiding groove 24b, polyfluortetraethylene pipe (not shown), and axle 21 (it also is the parts of described conveying-stretching structure, referring to top).Flier 24 is fixed to axle 21 at the output of ingot 54.Flier 24 has inlet 24a and has the 4th guiding groove 24b that is communicated with the 3rd guiding groove 21a of the end parts of passing described axle 21 at its free end.Roller 28 ' supports counterweight 30.Described polyfluortetraethylene pipe (not shown) is inserted among groove 21a and the 24b up to inlet 24a, and fiber passes described groove with very little friction.

(d) described driver train comprises electro-

motor

27 and 27a, driven

wheel

25 and 25a, axle 20 and 21 (they also are described conveying-stretching structure, described feed arrangement and the described parts that take off device, referring to top), six sprocket wheels 56, sprocket wheel 60, chain 58, Hooke's coupling 61, axle 55, axle 59 and scalable driving device (not shown).Gear 25 is fixed to axle 20, and gear 25a is fixed to axle 21.Sprocket wheel 56 is fixed to the axle 55 that is installed in the arm 46 in order to rotate.Sprocket wheel 60 is installed on the axle 59 in order to rotate and to be connected to axle 20 (Fig. 1 C) by described scalable driving device (not shown).Axle 59 is fixed to arm 46.Chain 58 transmission on wheel 56 and wheel 60.Hooke's coupling 61 is installed on axle 55 the other end and is connected to the shaft portion 54a (Figure 1A and 1C) of ingot 54.

(e) heating chamber 11 surround described conveying-stretching structure (except

support shell

12 and 14 and bearing 16 and 18), described coiling and launch flier and the described driver train except

motor

27 and 27a and gear 25 and 25a.It is supplied to hot air, hot inert gas or superheated steam.

Figure 1A-1C-operation

Electro-motor 27 arm revolving gears 25 and the therefore axle 20 in rolling bearing 16 and two bearings 15.Axle 20 make have flier 22,

axle

36 and 38 and the frame 35 of miniature gears 40 and 42 rotate around central axis.Miniature gears 40 and 42 rolls on sun gear 34 and 44, prevents that strut member 32 is around axle 20 and central axis rotation.Like this, the parts that supported by tubular supporting piece 32 that prevent described conveying-stretching structure rotate around described central axis.Electro-motor 27a arm revolving gear 25a and the therefore axle 21 in rolling bearing 18 and two bearings 13.Axle 21 makes flier 24 rotate around described central axis.

Rely on electro-motor 27a, gear 25a, axle 21, scalable driving device (not shown), wheel 60, chain 58, wheel 56, axle 55 and Hooke's coupling 61 to rotate ingot 54.The shaft portion 54a of

ingot

54 and 54b rotate in bearing 53 and 52 respectively.

Fiber G comes feed rolls 26 with entrance velocity from previous stage of fiber manufacture process (for instance, spinning, the previous stage that stretches, etc.) or from the feeding wraparound.Fiber passes

groove

20a and 22b and comes out from outlet 22a.Flier 22 rotates with axle 20 and frame 35 and places equilateral hexagon fibrous ring in succession, coiling around the receiving end of the ingot 54 that rotates.On such direction, rotate ingot 54, make that when observing, the fibrous ring of placing advances to the left side along central axis recently in Figure 1A, for next places the fibrous ring Free up Memory.Form the layer of the fibrous ring of coiling around ingot 54.Ingot screw thread or spiral grooves provide along the fibrous ring of central axis and carry and tensile fiber as the fiber displacement member.

Flier

22 and 24 all carries out rev when ingot 54 carries out rev (one revolution).When this took place, each fibrous ring was along a spacing of central axis advancing yarn dish.Simultaneously, the fibrous ring of coiling is rotated lentamente around described central axis, and the distance that the each point of described fibrous ring moves along described ring periphery equal ingot periphery (measuring at the interior diameter place of screw thread or spiral grooves).Along with the described ring of the rotation of each ingot increases their periphery, rely on the ingot 54 that the rotates described fiber (Fig. 6 A and 6B) that under the heating chamber temperature, stretches step by step.Leading fibrous ring is launched by flier 24 continuously at the output of ingot 54.The described fiber of respective length is by inlet 24a and guiding

groove

24b and 21a is transferred roller 28 and roller 28 ' is carried.Described fiber is transported to the next stage of fiber manufacture process or by the coiler (not shown), is transported to and receives the wraparound (not shown).Described fiber does not have the point that fixedly contacts with described ingot.This provides the size of the fiber after stretching and the conformability of physical property.

For method and apparatus of the present invention, tensile fiber rate λ equals the ratio of the ring periphery at the ring periphery of output and receiving end place.Move bearing 52 and they are fixed to the there by the guide slit 50 in arm 48, ingot angle α is changed, and can change tensile fiber rate λ.This causes changing the ring periphery at receiving end place.When angle α is changed, can regulate the arm 62 ' and 62 that supports ingot 54 " height.Because feed rolls 26 and conveying roller 28 are carried out pulling force control with roller 28 ' and counterweight 30 with the extra pulling force control setup (not shown) of the front and back that is placed on entire equipment, described fiber, when being fed to described ingot and when described ingot takes off, be in tension and can not shrink.

Another embodiment of Fig. 2 A-2D--

Has identical Reference numeral at the embodiment shown in Fig. 2 A-2D corresponding to the embodiment of Figure 1A-1C and corresponding parts.Ingot 54 (Figure 1A) has been replaced by the endless chain member of equal number (six) in conveying-stretching structure, and described endless chain is arranged to equilateral hexagon when observing in cross-sectional plane.Each chain member is subdivided into

endless chain part

66,66a and the 66b of three separation, and it passes through (Fig. 2 A and 2B) on sprocket wheel 68 and dual boot sprocket wheel 68 '.

All chains all have a plurality of biasing member 76a and 76b.Each chain link has biasing member 76a or biasing member 76b (Fig. 2 C).Each biasing member comprises that guiding semi-ring 77 is in order to fiber support.For clear, we do not illustrate the biasing member on all chain parts in Fig. 2 A.Wheel 68 is installed on radial arm 48 and 70, and takes turns 68 ' and be installed in radial arm 70 ' and 70 " go up in order to rotation.Arm 70 pivot shafts 69, it carries wheel 68 and bevel gear 74 (Fig. 2 D).Gear 74 and bevel gear 72 engagements of being carried by axle 55, it is installed on the arm 46 in order to rotate (Fig. 2 A and 2D).Can move wheel 68 along the guide slit 50 of arm 48 and will take turns 68 and be fixed in the guide slit 50 of arm 48, the angle of divergence alpha between described chain part and the described central axis is changed.Arm 70 ' and 70 " height be adjustable, and can move and fixing described arm along strut member 32.Angle [alpha] is identical for each chain part 66,66a or 66b, can be different or identical for different segment angle α still.Described chain is along support component 78,78 ' and 78 " slide sagging under tensile force to prevent chain.These parts are fixed, by arm 48,70 ', 70 " and 70 support, and they can be changed with the change of the angle α of each chain part with respect to the leaning angle of central axis.

As shown in Fig. 2 A and the 2B,

part

66,66a and 66b on dual boot sprocket wheel 68 ' by making the mouth of each chain part and the receiving end crossover of next chain part.Because adjacent reception and mouth are upwards isolated in week, their support the different piece of the fibrous ring that is moved along described central axis by described endless chain.

This changes the contact point between described fiber and the fiber displacement member, and the size and the physical property of the fiber after therefore causing stretching have better conformability.

Fig. 2 A-2E--operation

By electro-motor 27a, gear 25a, axle 21, scalable driving device (not shown), wheel 60, chain 58, wheel 56,

gear

72 and 74 and take turns 68 and 68 ' (Fig. 2 A, 2B and 2D) and drive described

chain.Flier

22 and 24 rotates in the opposite direction, all carries out rev when

chain

66,66a, 66b move a chain pitch.Flier 22 is arranged as the receiving end that centers on described chain 66 with the fibrous ring of coiling, and Jiang Gehuan is placed as with the guiding semi-ring 77 of biasing

member

76a and 76b and contacts (Fig. 2 C), and it is convenient to fibrous ring along central axis conveying and tensile fiber.The remainder of operation is that the operation in the situation with the embodiment of Figure 1A is identical.

Another embodiment of Fig. 3 A-3G--

Embodiment shown in Fig. 3 A-3G has identical Reference numeral corresponding to embodiment and the corresponding parts of Figure 1A-2D.In conveying-stretching structure, six chains with

part

66,66a and 66b (Fig. 2 A) are replaced by six pairs of parallel circulation loop chains 80, and it is unlike in the embodiment of Fig. 2 A and is divided into three separated portions like that separately again.When observing in cross-sectional plane (Fig. 3 B), these six chains are to being aligned to equilateral hexagon.They pass through on the wheel 68 of receiving end and output.Described chain slides sagging under tensile force to prevent chain along support component 96.These parts are fixed, by

radial arm

71,71 ', 71 " and 49 support, and they can change with the change of the angle of divergence alpha of chain 80 with respect to the angle of inclination of central axis.

Biasing member is installed on the described parallel chain.They comprise roller 98,

106 and 106a, axle 104 and the ball-bearing casing 102 (Fig. 3 C and 3D) with circular circumference groove 98a.Be connected each with 106a to described parallel chain by pin 106.Each is linked together by 106 or two pins of two pins 106a to chain link (from a chain link of each chain).The side member of described chain is modified to support described pin.Each is to pin 106 and 106a pivot shaft 104, and this axle 104 is with ball-bearing casing 102 bearing rollers 98.When changing the tensile fiber rate by the angle of divergence alpha that changes chain 80, the axis of axle 104 is adjusted near the central axis that is parallel to stretcher.In order to obtain this point, concerning each roller 98, by come the angle between adjusting shaft 104 and the chain around

106 and 106a turning cylinder 104.

Other pin

106 and 106a are partly moved and are fixed to the side part (Fig. 3 C) of chain along the side of chain.Gear 100 is connected to each side of roller 98.For clear, we are not illustrated in the roller 98 on all chains 80 in Fig. 3 A.

Be installed in an end (Fig. 3 E and 3F) of each 82 carrying two wheels 68, bevel gear 84, bevel gear 74 and pivot shafts 88 in the arm 71.Bevel gear 84 and bevel gear 86 engagements that are fastened to wide

gear 90.Gear

86 and 90 is installed on the axle 88 (Fig. 3 F).Gear 90 meshes (Fig. 3 C-3F) with the tooth 100 of roller 98.The other end of axle 88 is supported (Fig. 3 G) by axle 92.Axle 92 is supported by arm 49 and can be moved and be fixed in the guide slit 50 along guide slit 50.When this took place, axle 88 was around axle 82 rotations, and gear 86 rolls around gear 84, and two gears all keep engagement.Two wheels 68 are installed on each axle 92 (Fig. 3 G).

Fig. 3 A-3G--operation

By electro-motor 27a, gear 25a, axle 21, scalable driving device (not shown), wheel 60, chain 58, wheel 56, gear 72 and 74 and take turns 68 (Fig. 3 A and 3E) and come driving chain 80.Simultaneously, gear 84 arm revolving gears 86 and wide gear (long gear) 90 (Fig. 3 E and 3F).Gear 90 arm revolving gears 100 and roller 98, roller 98 from receiving end, is moved to mouth along gear 90 by chain 80 simultaneously.When chain 80 moved a chain pitch, flier 22 and 24 rotated in the opposite direction, once circles round.Flier 22 will equilateral hexagon fibrous ring in succession, coiling be placed to the receiving end around described chain 80, each ring is placed on (Fig. 3 C and 3D) among the groove 98a of roller 98 and forms the layer of the fibrous ring of the coiling of being supported by roller.Roller 98 as the parts of biasing member, is convenient to fibrous ring and is carried and tensile fiber along central axis.When in Fig. 3 A, observing, when fibrous ring is on the left of central axis advances to, the fibrous ring of coiling is rotated around central axis.This has changed the contact point between fiber and the roller, therefore makes the size and the physical property of the fiber after stretching have better conformability.The velocity of rotation of roller 98 and fiber disc is adjustable.The remainder of this operation is that the operation in the situation with the embodiment of Figure 1A and 2A is the same.

This equipment can use with the roller 98 of not driven-mechanism rotation.In this example, the fibrous ring of coiling is supported by roller free to rotate, is not rotated around central axis.In some cases, this is enough to produce along the axis of fiber and has fiber after the conforming stretching of size and physical property.

Another embodiment of Fig. 4 A-4C--

Embodiment shown in Fig. 4 A-4C has identical Reference numeral corresponding to embodiment and the corresponding parts of Figure 1A-3A.As in the embodiment of Fig. 3 A, this embodiment has the conveying-stretching structure that comprises six pairs of parallel circulation loop chains (circulating endless chain) 80, when observing in cross-sectional plane (as shown in Fig. 3 B), described six pairs of parallel endless chains 80 are arranged to equilateral hexagon and are oriented to become variable angle of divergence alpha with respect to central axis.In this embodiment, the reception of described conveying-stretching structure and mouth are disposed in the outside of heating chamber 11.At described output, described conveying-stretching structure has the part in the described heating chamber outside, and chain 80 is arranged to be parallel to described central axis there.This embodiment is compared with the embodiment of Fig. 3 A, has the extra support parts 97 and the radial arm 71 that support sprocket wheel 68 " '.Support component 97 is by

radial arm

71 and 71 " ' support (Fig. 4 A).

In this embodiment, axle is 55 than the length in the embodiment of Fig. 3 A, and carry separately two with bevel gear 74 (Fig. 4 C) ingear bevel gear 72 (Fig. 4 A).Sprocket wheel 57 is fixed to axle 21.Chain 58 passes on wheel 56 and wheel 60, and chain 58a passes (Fig. 4 B) on

wheel

60 and 57.

The fiber displacement member, roller 98, by be installed on the chain 80 in the identical mode of the mode shown in Fig. 3 C and the 3D.The gear 100 of (as in the embodiment of Fig. 3 A) roller 98 meshes the wide gear 90 (Fig. 3 E and 3F) on the axle 88 that is installed between

radial arm

49 and 71 in this embodiment.Roller 98 ground from the receiving end to the mouth supports fibrous ring.

Fig. 4 A-4C-operation

In this embodiment, described conveying-stretching structure is not fixed.Make total (comprise tubular supporting piece 32 by electro-motor 27 and gear 25 (Fig. 4 A),

radial arm

46,49,71,71 ', 71 " and 71 " ', conveying-drawing chain 80, sprocket wheel 68,

bevel gear

72 and 74,

axle

82 and 88,

gear

84 and 86, wide gear 90, the roller 98 that has gear 100,

chain

58 and 58a, axle 55, and support component 96 and 97) rotate around central axis.

By electro-motor 27a, gear 25a, axle 21, sprocket wheel 57, chain 58a, wheel 60, chain 58, wheel 56,

gear

72 and 74 and wheel 68[

gear

72 and 74, and take turns 68 and be installed in two radial arms 71 " ' on (Fig. 4 C) and 71 (as shown in Fig. 3 E)] come driving chain 80.Chain 80 along

support component

96 and 97 slide with prevent they sagging and by

radial arm

49,71 and 71 " ' process on the wheel 68 that supports.With the mode (Fig. 3 E and 3F) identical with mode in the embodiment of Fig. 3 make be installed on the chain 80 roller 98 around they rotational simultaneously roller 98 move between

radial arm

49 and 71 along central axis.Rotation impels fibrous ring to center on the central axis rotation, causes fiber and roller not to have fixing contact point.When they at

radial arm

71 and 71 " ' between (Fig. 4 C) when mobile roller 98 be not driven, but by with roller 29 the fiber buddle mouth being left behind, described roller continues to continue around the central axis rotation around their rotational and described fibrous ring.

Conveying-the stretching structure that rotates impels fiber G to be wound on the receiving end of conveying-drawing chain 80 in equilateral hexagon fibrous ring mode (Fig. 4 A) in succession, coiling.These rings are carried and are stretched in heating chamber 11 along central axis in the mode identical with mode in the situation of the embodiment of Fig. 3 A.After described heating chamber, described fibrous ring is transferred (along having the part that is aligned to the chain 80 that is parallel to central axis) and is cooled under situation about not being stretched.At described output, impel their expansion (Fig. 4 A) by the rotation of described conveying-stretching structure.The remainder of operation is that the operation in the situation with the embodiment of Figure 1A-3A is identical.

This embodiment is especially convenient concerning the operator.In order to begin this process, the operator turns off CD-

ROM drive motor

27 and 27a, with air gun fiber is loaded into receiving end (in the outside of heating chamber), and it is clipped to one of them fiber displacement member (roller 98).The operator opens CD-ROM drive motor, and this equipment begins in succession fibrous ring is placed as continuously around the receiving end of circulation conveying-drawing chain 80, carries described ring along central axis towards mouth, and stretches them.Like this, this equipment is loaded in all fibrous rings (may be tens or hundreds of) on the roller 98 that is installed on the chain 80 from the receiving end to the mouth.When fibre end arrived described mouth (in the outside of heating chamber), the operator turned off CD-ROM drive motor, unclamps described fiber, and fibre end is inhaled in air gun, opened motor, and fiber was taken the next stage of coiler or fiber manufacture process.Like this, the process that fibrous ring is loaded on this equipment is semi-automatic.In the situation of fiber broken string, chain will break to hold and be transported to the operator and can easily handle their mouth (in the outside of described heating chamber).

Another embodiment of Fig. 5 A-5C--

The continuously elongated embodiment of the fiber (the sinuous fibrous ring of described coiling be according to the form of the fibrous ring of coiling as defined above a kind of) of the sinuous fibrous ring form that is used for coiling of the present invention has been shown in Fig. 5 A-5C.As in the described aforementioned embodiments in the above, described stretcher has following major part: the conveying-stretching structure that (a) is used for conveying and while fiber in tension G (single head (end) and bull), (b) be used for fiber G being fed into feed arrangement on the receiving end that described conveying-stretching structure and sinuous fibrous ring that will be in succession be placed on described conveying-stretching structure continuously with entrance velocity, (c) be used for from the mouth of described conveying-stretching structure take off leading fibrous ring continuously and will stretch with exit velocity after the described tensile fiber equipment of fiber buddle be transported to the next stage of fiber manufacture process or receive wraparound take off (take off) device, (d) be used to drive described conveying-stretching structure parts driver train and (e) at the heating chamber of carrying and be used to add during fiber in tension thermal fiber G.For their detailed description referring to following.

(a) described conveying-stretching structure comprises two conveying-tensile members.Each conveying-tensile member comprises circulation loop chain 108 and a plurality of roller 112 of pair of parallel, and this a plurality of roller 112 is as biasing member, is installed on described conveying-tensile member and is placed on (Fig. 5 A and 5B) between the chain 108.Each roller 112 has axle 152, two ball-bearing casings 154, spacer 156, sprocket wheel 160 and a plurality of circular parallel grooves 162 that are used to handle parallel a plurality of fibre ends (Fig. 5 C).For clear, the roller in Fig. 5 A and 5B on our not shown all chains.

As in the described aforementioned embodiments in the above, described conveying-tensile member is arranged to the mouth that is used to receive the receiving end of fiber and is used to export fiber around central axis and having, and described receiving end and mouth are all spaced apart along central axis.Described mouth is isolated more farther from described central axis than described receiving end.

Described conveying-stretching structure, and other parts of described stretcher are supported by vertical support shell 110.Each chain 108 passes (Fig. 5 B) on two sprocket wheels 150 that are installed on the shell 110.

Two circulation loop chains 114 (being used for a pair of chain 108 separately) are arranged.Each chain 114 passes on two sprocket wheels 118 and two rollers 120.Being used for one of each chain 114 wheel 118 is driven by the electro-motor (not shown).Chain 114 engages with the sprocket wheel 160 of roller 112.Chain 114 slides with sagging under tensile force of the chain 108 that prevents that they are sagging and have a roller 112 along support component 116.Parts 116 are fixed and are installed on the shell 110.

(b) described feed arrangement comprises a pair of driven feed rolls 122, roller 124, roller 126, counterweight 128, the feeding flier 132 that has two rollers free to rotate 130, guiding piece 134, two springs 136, two plungers 138, two screw actuators 140 that have core 141, and four screw actuators 142 (two are used for each screw actuator 140) that have core 144.

(c) described take off device comprise a pair of driven conveying roller 122 ', roller 124 ', roller 126 ', counterweight 128 ', have two rollers 130 ' free to rotate take off flier 132 ', guiding piece 134 ', two springs 136 ', two plungers 138 ' and two screw actuators 140 ' that have core 141 '.

(d) the described driver train that is used for chain 108 comprises electro-motor 146 (each is to 108 1 motors of chain).Each motor 146 drives two sprocket wheels 150 (wheel is used for a chain 108).

(e) described heating chamber 148 is supplied to hot air, hot inert gas or superheated steam, it surrounds described conveying-tensile member, described sinuous fibrous ring and described feeding and takes off the parts of device.

Fig. 5 A-5C-operation

By electro-motor 146 and gear 150 (Fig. 5 A and 5B) driving chain 108.Chain 108 bearing rollers 112 are transported to described mouth and conveying on the contrary with them from described receiving end.Motor 146 has adjustable speed.Upper chain 114 circulates simultaneously in the counterclockwise direction, and lower chain 114 circulates in the clockwise direction.Like this, the parts of chain 114, it engages with the sprocket wheel 160 of roller 112, moves on the direction identical with chain 108.Chain 114 has a shade below the linear velocity of chain 108.In this process, live-rollers 112 lentamente on this direction along fibre axis, perhaps, in other words, moves the wriggle point of ring of described fiber along the axis that wriggles.This changes the contact point between described fiber and the described roller, makes the size and the physical property of the fiber after stretching have better conformability.

Fiber G (single head or parallel bull) with entrance velocity from previous stage of fiber manufacture process (for instance, spinning, the previous stage of stretching, etc.) or come feed rolls 122 from the feeding wraparound.Fibre end is come feeding flier 132, is centered on roller 130 bendings, and comes roller 112 (Fig. 5 A and 5B).Roller 130 and 130 ' has a plurality of circular parallel groove (not shown), and it is similar to those grooves on the roller 112 in order to handle parallel a plurality of fibre ends.

Flier 132 moves up and down along guiding piece 134 in the mode identical with knit operation in the industrial textile, and just, it is directed the top of part 134 and the plunger 138 at place, bottom clashes into successively.Screw actuator 140 is regained cores 141, compression spring 136 and plunger 138 upwards is directed to impact position.Certain the time screw actuator release spring successively, plunger percussion feeding flier, and flier moves along the guiding piece of bearing fiber end.Top and bottom that the blocking device (not shown) can stop at flier 132 guiding piece 134 allow plunger 138 at reasonable time percussion feeding flier.The assembly of parts of feed arrangement that comprises screw actuator 140, core 141, spring 136, plunger 138, guiding piece 134 and have a feeding flier 132 of roller 130 relies on screw actuator 142 (at two of the top of this equipment with two of the bottom of this equipment) and core 144 and has short-range level and relatively move.This combination vertical and parallel motion of flier 132 provides more flexibility and the particularity in the operation of equipment.

Like this, the sinuous ring of the coilings that feeding flier 132 will be in succession is placed on the roller 112 at receiving end place of chain 108.Fiber is placed in the groove 162.When observing in Fig. 5 A, the fibrous ring of placing advances to the left side along central axis from the receiving end to the mouth recently, is the fibrous ring Free up Memory of next one placement.Form the parallel layers of the fibrous ring that wriggles on chain 108 and roller 112, just, a layer is used for a fiber head.Roller 112 is as the fiber displacement member, is convenient to along described central axis conveying fiber ring and carries out tensile fiber by the periphery of swelling fiber ring simultaneously.Like this, fiber in tension little by little under the heating chamber temperature.

The preceding ring in succession of the fiber after the stretching is removed device at output and takes off continuously, and except the described device that takes off does not have level moves back and forth, the described device that takes off is operated in the mode identical with feed arrangement described above.Moving of all parts of stretcher should be synchronous.

The remainder of operation is that the operation in the situation with the embodiment of Figure 1A-3A is identical.

Calculate

As discussed above, the single speed (V in the drawing process that continuously elongated method of the present invention provided _Fiber) _MaxBe lower than exit velocity V _Outlet(V _OutletWith (V _Fiber) _MaxRatio greater than 1 to 1).Simultaneously, do not reducing and in some cases even increase under the situation of productive output rate of strain V _StrainSignificantly be lower than the rate of strain of existing industrial process and the stretching time that stretching time T significantly is longer than existing industrial process.Based on the following calculating that the embodiment of Figure 1A-5A carries out, support these statements.

Provide along the delivery speed V of the fibrous ring of central axis by following formula _Loop

V _Loop=d/ Δ T and (6)

ΔT＝d/V _loop??????????????????(7)

Wherein d be between the adjacent ring in the fiber disc along the distance of central axis, just, the pitch of fiber disc, and

Δ T-fibrous ring passes the needed time apart from d.

According to mass conservation law, in continuous fiber manufacture process, the fiber of in unit time equal in quality will pass any cross sectional planes (perpendicular to the plane of central axis) in the inboard and the outside of this equipment.For the fiber with same stretch rate λ, fiber quality is proportional with fibre length.

In this equipment inboard, at output, fibre length L, it is the periphery at the leading fibrous ring of output, passes cross sectional planes (referring to top) in time Δ T.In the outside of this equipment, when fiber was transported to the next stage of fiber manufacture process or receives wraparound, the equal length L of the fiber after stretching (having identical λ) should pass cross sectional planes in identical time Δ T.Like this, provide exit velocity V by following formula _Outlet

V _outlet＝L/ΔT????????????????????????(8)

Like this, ratio A is derived in equation (7) and (8)

A＝V _outlet/V _loop＝L/d?????????????????(9)

(a) have the situation of embodiment of the equilateral polygon fibrous ring of coiling among Figure 1A-4A.

In the diagram, Fig. 6 A and 6B show, as ring fibrous ring periphery L when central axis spended time Δ T passes apart from d _iTo L _I+1Increase.In the situation of the embodiment of Figure 1A-4A, described fibrous ring is equilateral polygon and forms (Fig. 6 B) by six equal pars fibrosas.Each several part stretches between two adjacent conveyor-tensile members.As an example, Partial K P becomes part FW.The increase of length is that (line KH and PQ are perpendicular to line FW for FH+QW; FH=QW).Along fibre axis with linear velocity V _FiberThe each point of stretched portion KP, linear velocity is different for the difference of this part.In drawing process, some K and P have the highest speed V _Fiber, by V _FiberKAnd V _FiberPMark.The intermediate point of Partial K P has speed V _Fiber=0.Like this, provide fiber speed V in the drawing process by following formula _FiberPeak (V _Fiber) _Max

We obtain from equilateral triangle POK (Fig. 6 B)

In n conveying-tensile member is disposed in situation in the equilateral polygon, provide angle by following formula

We obtain from equation (11) and (12)

We obtain from equation (10) and (13)

(V _fiber) _max＝PW·cos[90·(1-2/n)]·1/ΔT????????????????(14)

We obtain from Fig. 6 A

PW=dtg α and (15)

(V _fiber) _max＝d·tgα·cos[90·(1-2/n)]·1/ΔT???????????(16)

We obtain from equation (6) and (16)

(V _fiber) _max＝V _loop·tgα·cos[90·(1-2/n)]??????????????(17)

We obtain from equation (9) and (17)

(V _fiber) _max＝V _outlet·d·1/L·tgα·cos[90·(1-2/n)]????(18)

Like this, in drawing process for given V _Outlet, d, L, n, and α, fiber speed (V _Fiber) _MaxBe constant.

Equation (18) is derived ratio B

B＝V _outlet/(V _fiber) _max＝L/{d·tgα·cos[90·(1-2/n)]}???(19)

In the situation that the fibrous ring that roller and ingot (being similar in the embodiment of Figure 1A and Fig. 3 A) by rotation make coiling rotates around central axis, the each point of fibrous ring is with linear velocity V _RotationRotate, it is the linear surface speed of roller or ingot (Fig. 7).The each point spended time Δ T that centers on fibrous ring in the central axis rotating process at ring passes distance L _FiberRing is done as a wholely to pass apart from d along central axis simultaneously.

Provide distance L by following formula _Fiber

L _fiber＝V _rotation·ΔT??????????????????????????????????(20)

We obtain from equation (8) and (20)

L _fiber＝(V _rotation/V _outlet)·L??????????????????????????(21)

In drawing process,, pass by L at ring each point of fibrous ring in the central axis rotating process when fibrous ring during from receiving end to mouth _TotalTotal distance of expression, it is provided by following formula

L _total＝L _fiber·(N-N’)＝(V _rotation/V _outlet)·L·(N-N’)，(22)

Wherein, center in the situation of central axis rotation at the roller of dependence rotation and the ring of ingot, (N-N ') be the quantity of in stretching time T, passing the fibrous ring of heating chamber,

N is the quantity of the fibrous ring in the heating chamber, and it is provided by following formula

N＝M/d，??????????????????????????????????????????????????(23)

Wherein M is the length of fiber disc along central axis, and

N ' has average periphery L _AverageThe quantity of ring, it has the L of equaling _TotalTotal periphery (it is the minimizing of quantity of passing the fibrous ring of heating chamber in stretching time T, as around the ring of central axis result) with respect to the rotation of the situation that not have rotation, and provide by following formula

N’＝L _total/L _average，?????????????????????????????(24)

Wherein provide the average periphery L of the fibrous ring in the heating chamber by following formula _Average

L _average＝(L+L’)/2，??????????????????????????????(25)

Wherein L ' is the periphery of first fibrous ring at receiving end place.

Provide extensibility λ by following formula

λ=L/L ' and (26)

L _average＝(L+L/λ)/2???????????????????????????????(27)

We obtain from equation (22) and (24)

N’＝N/(L _average/L _fiber+1)?????????????????????????(28)

People can see, ratio L _Average/ L _FiberBig more, to compare N ' more little with N.

Like this, stretching time T, it is each fiber point needed time from the receiving end to the mouth, considers equation (9), is provided by following formula

T＝(M-N’·d)/V _loop＝[A·(M-N’·d)]/V _outlet＝

＝[L·(M-N’·d)]/(V _outlet'd)(29)

From the definition of Δ T, just, fibrous ring pass between the adjacent ring along central axis apart from needed time of d (referring to appendix, the 52nd page), and under the situation of N '=0, we obtain

ΔT＝T/(N-1)???????????????????????????????????????(30)

We obtain from equation (8) and (30)

V _outlet＝[L·(N-1)]/T??????????????????????????????(31)

When N is very big

V _outlet＝(L·N)/T??????????????????????????????????(32)

Equation (32) shows V _OutletThan and be inversely proportional to T.

Example 1

Table I has provided L=5500mm, V _Outlet=V _Take-up=3000m/min (fiber is transported to and receives wraparound after the draw stage), n=6, λ=5 to 1 (400%), and d, M and A are the result of calculation under the situation of variable.The fibrous ring that makes coiling by the roller that rotates or ingot does not rotate around central axis.The speed of having got of 3000m/min is the speed of having got usually that is used for the business process of multifibres and yarn.

Example 2

Table II has provided L=2000mm, V _Outlet=V _Take-up==500m/min (fiber is transported to and receives wraparound after the draw stage), n=6, λ=5 to 1 (400%), and d, M and A are the result of calculation under the situation of variable.The fibrous ring that makes coiling by the roller that rotates and ingot does not rotate around central axis.The speed of having got of 500m/min is the speed of having got usually that is used to the business process of yarn and monofilament.(b) situation of the embodiment of the sinuous fibrous ring that has coiling of Fig. 5 A.

Equation (10)-(32) of deriving for the situation (embodiment of Figure 1A-4A) of the equilateral polygon fibrous ring of coiling can be used for having the situation of embodiment of Fig. 5 A of sinuous fibrous ring, wherein the quantity n=2 of conveying-tensile member.

Example 3

Table III has provided L=5500mm, V _Outlet=V _Take-up==2000m/min (fiber is transported to and receives wraparound after the draw stage), n=2, λ=5 to 1 (400%), and d, M and A are the result of calculation under the situation of parameter.The fiber point of sinuous fibrous ring is rotated along fibre axis by the roller that rotates.As discussed above, the embodiment that this has sinuous fibrous ring of the present invention a plurality of heads that can stretch.

Like this, in the situation of in routine 1-3, checking, single speed (V _Fiber) _MaxBe low, just ,-0.1-8m/min, stretching time T can reach tens seconds, rate of strain V _StrainBe low, just, 6-70%/sec, and V _OutletWith (V _Fiber) _MaxRatio greater than 1 to 1, that is, and from ratio 250 to 1 change to ratio 9000 to 1 (if desired, tensile fiber equipment can be constructed and arranged to provide be lower than 250 to 1 and greater than 9000 to 1 ratio).Have identical λ=400% and (V _Fiber) _Max=V _Fiber2=V _Outlet=V _Take-upIn the situation of the traditional commerce drawing process of=3000m/min, stretching time T is about 1 second, and V _StrainBe very high, just, about 400%/sec.

In the method for the invention, stretching time T is so long in some cases, makes it can be reduced 1.5-2 doubly, still keeps the hot-stretch of long enough (20-40sec) with the unanimity of execution even high denier's fiber.Speed V like this, in these cases _Loop, V _Outlet, and V _Take-upAlso being increased at least, 1.5-2 doubly causes productive output to increase to 1.5-2 doubly with more.Like this, the speed of having got can be 4500-6000m/min and Geng Gao.

Table I. the result of calculation of example 1.

	Fiber disc is along the length M of central axis, mm	The pitch d of fiber disc, mm	?A＝?V _outlet/?V _loop＝?V _take-up/?V _loop＝?L/d	Fibrous ring speed V _loop＝??3000/A，??m/min	Stretching time T=M/V _loop，??Sec ^*)	The quantity of the ring in the heating chamber, N=M/d	Linear fibre speed (V in the drawing process _fiber) _max?m/min ^*)	??B＝V _outlet/??(V _fiber) _max＝??V _take-up/??(V _fiber) _max＝??3000/(V _fiber) _max	Rate of strain V _strain??＝λ/T＝??400/T，??％/sec ^*)	Angle of divergence alpha when extensibility λ is 5 to 1, deg ^**)
	Fiber disc is along the length M of central axis, mm	The pitch d of fiber disc, mm	?A＝?V _outlet/?V _loop＝?V _take-up/?V _loop＝?L/d	Fibrous ring speed V _loop＝??3000/A，??m/min	Stretching time T=M/V _loop，??Sec ^*)	The quantity of the ring in the heating chamber, N=M/d			Rate of strain V _strain??＝λ/T＝??400/T，??％/sec ^*)		??1	??500	??5	??1100	??2.7	??11.1	??100	??2.0	??1500	??36	??55.7
??2	??500	??7.5	??733	??4.1	??7.3	??67	??3.0	??1000	??54.8	??55.7	??1	??500	??5	??1100	??2.7	??11.1	??100	??2.0	??1500	??36	??55.7
??2	??500	??7.5	??733	??4.1	??7.3	??67	??3.0	??1000	??54.8	??55.7	??3	??500	??10	??550	??5.4	??5.6	??50	??4.0	??750	??72	??55.7
											??3	??500	??10	??550	??5.4	??5.6	??50	??4.0	??750	??72	??55.7
											??4	??1000	??5	??1100	??2.7	??22.2	??200	??1.0	??3000	??18	??36.3
??5	??1000	??7.5	??733	??4.1	??14.6	??134	??1.5	??2000	??27.4	??36.3	??4	??1000	??5	??1100	??2.7	??22.2	??200	??1.0	??3000	??18	??36.3
??5	??1000	??7.5	??733	??4.1	??14.6	??134	??1.5	??2000	??27.4	??36.3	??6	??1000	??10	??550	??5.4	??11.1	??100	??2.0	??1500	??36	??36.3
											??6	??1000	??10	??550	??5.4	??11.1	??100	??2.0	??1500	??36	??36.3
											??7	??2000	??5	??1100	??2.7	??44.4	??400	??0.5	??6000	??9	??20.1
??8	??2000	??7.5	??733	??4.1	??29.2	??268	??0.75	??4000	??13.7	??20.1	??7	??2000	??5	??1100	??2.7	??44.4	??400	??0.5	??6000	??9	??20.1
??8	??2000	??7.5	??733	??4.1	??29.2	??268	??0.75	??4000	??13.7	??20.1	??9	??2000	??10	??550	??5.4	??22.2	??200	??1.0	??3000	??18	??20.1
											??9	??2000	??10	??550	??5.4	??22.2	??200	??1.0	??3000	??18	??20.1
											??10	??3000	??5	??1100	??2.7	??66.6	??600	??0.34	??8956	??6	??13.7
??11	??3000	??7.5	??733	??4.1	??43.8	??400	??0.5	??6000	??9	??13.7	??10	??3000	??5	??1100	??2.7	??66.6	??600	??0.34	??8956	??6	??13.7
??11	??3000	??7.5	??733	??4.1	??43.8	??400	??0.5	??6000	??9	??13.7	??12	??3000	??10	??550	??5.4	??33.3	??300	??0.65	??4512	??12	??13.7

^*)In the situation that fiber disc is rotated around central axis, T and V _StrainNeed to revise according to equation (29) and (5) respectively.

^*)In the situation of the embodiment that conveying-drawing chain is made up of several parts (Fig. 2 A), all chain parts have identical angle of divergence alpha.

Table II. the result of calculation of example 2.

	Fiber disc is along the length M of central axis, mm	The pitch d of fiber disc, mm	A＝V _outlet/V _loop＝V _take-up/V _loopL/d	Fibrous ring speed V _loop＝?500/A，?m/min	Stretching time T=M/V _loop，??Sec ^*)	The quantity of the ring in the heating chamber, N=M/d	Linear fibre speed (V in the drawing process _fiber) _max?m/min ^*)	??B＝V _outlet/??(V _fiber) _max＝??V _take-up/??(V _fiber) _max＝??500/(V _fiber) _max	Rate of strain V _strain??＝λ/T＝??400/T，??％/sec ^*)	Angle of divergence alpha when extensibility λ is 5 to 1, deg ^**)
	Fiber disc is along the length M of central axis, mm	The pitch d of fiber disc, mm	A＝V _outlet/V _loop＝V _take-up/V _loopL/d	Fibrous ring speed V _loop＝?500/A，?m/min	Stretching time T=M/V _loop，??Sec ^*)	The quantity of the ring in the heating chamber, N=M/d			Rate of strain V _strain??＝λ/T＝??400/T，??％/sec ^*)		??1	??500	??5	??400	??1.25	??24	??100	??0.34	??1492	??16.7	??28.1
??2	??500	??7.5	??267	??1.87	??16	??67	??0.50	??1000	??25	??28.1	??1	??500	??5	??400	??1.25	??24	??100	??0.34	??1492	??16.7	??28.1
??2	??500	??7.5	??267	??1.87	??16	??67	??0.50	??1000	??25	??28.1	??3	??500	??10	??200	??2.5	??12	??50	??0.67	??746	??33.3	??28.1
											??3	??500	??10	??200	??2.5	??12	??50	??0.67	??746	??33.3	??28.1
											??4	??1000	??5	??400	??1.25	??48	??200	??0.17	??3030	??8.3	??14.9
??5	??1000	??7.5	??267	??1.87	??32	??134	??0.25	??2000	??12.5	??14.9	??4	??1000	??5	??400	??1.25	??48	??200	??0.17	??3030	??8.3	??14.9
??5	??1000	??7.5	??267	??1.87	??32	??134	??0.25	??2000	??12.5	??14.9	??6	??1000	??10	??200	??2.5	??24	??100	??0.34	??1492	??16.7	??14.9
											??6	??1000	??10	??200	??2.5	??24	??100	??0.34	??1492	??16.7	??14.9
											??7	??1500	??5	??400	??1.25	??72	??300	??0.11	??4546	??5.6	??10.1
??8	??1500	??7.5	??267	??1.87	??48	??200	??0.17	??3030	??8.3	??10.1	??7	??1500	??5	??400	??1.25	??72	??300	??0.11	??4546	??5.6	??10.1
??8	??1500	??7.5	??267	??1.87	??48	??200	??0.17	??3030	??8.3	??10.1	??9	??1500	??10	??200	??2.5	??36	??150	??0.22	??2222	??11.1	??10.1

Table III. the result of calculation of example 3.

	Sinuous fibrous ring is along the length M of central axis, mm	The pitch d of sinuous fibrous ring, mm	?A＝?V _outlet/?V _loop＝?V _take-up/?V _loop＝?L/d	Fibrous ring speed V _loop＝??2000/A，??m/min	Stretching time T=M/V _loop，??Sec ^*)	The quantity of the ring in the heating chamber, N=M/d	Linear fibre speed (V in the drawing process _fiber) _max?m/min ^*)	??B＝V _outlet/??(V _fiber) _max＝??V _take-up/??(V _fiber) _max＝??2000/(V _fiber) _max	Rate of strain V _strain?＝λ/T＝?400/T，?％/sec ^*)	Angle of divergence alpha when extensibility λ is 5 to 1,
		The pitch d of sinuous fibrous ring, mm	?A＝?V _outlet/?V _loop＝?V _take-up/?V _loop＝?L/d	Fibrous ring speed V _loop＝??2000/A，??m/min	Stretching time T=M/V _loop，??Sec ^*)	The quantity of the ring in the heating chamber, N=M/d			Rate of strain V _strain?＝λ/T＝?400/T，?％/sec ^*)	Angle of divergence alpha when extensibility λ is 5 to 1,	??1	??2000	??20	??275	??7.3	??16.4	??100	??4.0	??500	??24.4	??28.8
??2	??2000	??30	??183	??10.9	??11.0	??67	??6.0	??333	??36.4	??28.8	??1	??2000	??20	??275	??7.3	??16.4	??100	??4.0	??500	??24.4	??28.8
??2	??2000	??30	??183	??10.9	??11.0	??67	??6.0	??333	??36.4	??28.8	??3	??2000	??40	??138	??14.5	??8.3	??50	??8.0	??250	??48.2	??28.8
											??3	??2000	??40	??138	??14.5	??8.3	??50	??8.0	??250	??48.2	??28.8
											??1	??3000	??20	??275	??7.3	??24.6	??150	??2.6	??769	??16.3	??20.1
??2	??3000	??30	??183	??10.9	??16.5	??100	??4.0	??500	??24.2	??20.1	??1	??3000	??20	??275	??7.3	??24.6	??150	??2.6	??769	??16.3	??20.1
??2	??3000	??30	??183	??10.9	??16.5	??100	??4.0	??500	??24.2	??20.1	??3	??3000	??40	??138	??14.5	??12.4	??75	??5.3	??377	??32.2	??20.1
											??3	??3000	??40	??138	??14.5	??12.4	??75	??5.3	??377	??32.2	??20.1
											??4	??4000	??20	??275	??7.3	??32.8	??200	??2.0	??1000	??12.2	??15.4

	Sinuous fibrous ring is along the length M of central axis, mm	The pitch d of sinuous fibrous ring, mm	?A＝?V _outlet/?V _loop＝?V _take-up/?V _loop＝?L/d	Fibrous ring speed V _loop＝??2000/A，??m/min	Stretching time T=M/V _loop，??Sec ^*)	The quantity of the ring in the heating chamber, N=M/d	Linear fibre speed (V in the drawing process _fiber) _max?m/min ^*)	??B＝V _outlet/??(V _fiber) _max＝??V _take-up/??(V _fiber) _max＝??2000/(V _fiber) _max	Rate of strain V _strain?＝λ/T＝?400/T，?％/sec ^*)	Angle of divergence alpha when extensibility λ is 5 to 1,
		The pitch d of sinuous fibrous ring, mm	?A＝?V _outlet/?V _loop＝?V _take-up/?V _loop＝?L/d	Fibrous ring speed V _loop＝??2000/A，??m/min	Stretching time T=M/V _loop，??Sec ^*)	The quantity of the ring in the heating chamber, N=M/d			Rate of strain V _strain?＝λ/T＝?400/T，?％/sec ^*)	Angle of divergence alpha when extensibility λ is 5 to 1,	??5	??4000	??30	??183	??10.9	??22.0	??134	??3.0	??667	??18.2	??15.4
??6	??4000	??40	??138	??14.5	??16.6	??100	??4.0	??500	??24.1	??15.4	??5	??4000	??30	??183	??10.9	??22.0	??134	??3.0	??667	??18.2	??15.4
??6	??4000	??40	??138	??14.5	??16.6	??100	??4.0	??500	??24.1	??15.4
??7	??5000	??20	??275	??7.3	??41.0	??400	??1.6	??1250	??9.8	??12.4
??7	??5000	??20	??275	??7.3	??41.0	??400	??1.6	??1250	??9.8	??12.4	??8	??5000	??30	??183	??10.9	??27.5	??268	??2.4	??833	??14.5	??12.4
??9	??5000	??40	??138	??14.5	??20.8	??200	??3.2	??625	??19.2	??12.4	??8	??5000	??30	??183	??10.9	??27.5	??268	??2.4	??833	??14.5	??12.4
??9	??5000	??40	??138	??14.5	??20.8	??200	??3.2	??625	??19.2	??12.4
??10	??6000	??20	??275	??7.3	??49.2	??300	??1.3	??1538	??8.1	??10.4
??10	??6000	??20	??275	??7.3	??49.2	??300	??1.3	??1538	??8.1	??10.4	??11	??6000	??30	??183	??10.9	??33.0	??200	??2.0	??1000	??12.1	??10.4
??12	??6000	??40	??138	??14.5	??24.8	??150	??3.2	??625	??16.1	??10.4	??11	??6000	??30	??183	??10.9	??33.0	??200	??2.0	??1000	??12.1	??10.4

^*)In the fiber armor situation mobile by the rod of rotation, T and V _StrainNeed to revise according to equation (29) and (5) respectively.

Experiment--the stretching of mekralon

The prototype of first kind of stretcher of structure.Described stretcher comprises two loop chains as conveying-tensile members, as the roller that do not driven, free to rotate of the guiding elements of biasing member be supplied to the heating chamber of hot air.Do not construct feeding and take off device or mechanism at F/s.Yet such mechanism is proved to be feasible and can is one after the other used at the industrial process of the heat setting that is used for polymer fiber discussed above.The heating chamber of this unit is that 1000mm is long.

Use the polypropylene commercial resin (grade 10-6345) of Amoco Chemical Co..This resin has following parameter: melt flow rate-3.1 gram/10 minutes, M _w=370,000, and MWD=5.6.It is pushed by the spinneret hole of 0.5mm with the low-down speed of having got under 220 ℃ and is at room temperature quenched in water-bath.Large-angle X-ray diffraction figure shows that the as-spun fibre of manufacturing is non-orientation (unorentated) and low crystallization.

In the stage of two separation, use stretcher to carry out this drawing process twice with different temperature.This that stretches two stages represent to occur in two different stretching processes on the molecule degree.The pelletoid as-spun fibre that the incipient extension stage will not stretch is transformed into the fiber with filamentary structure, and the fiber of filamentary structure forms by constriction mechanism.F/s can be a fast speed.Thereafter be second draw stage, it is known as super stretching.The filamentary structure that described second draw stage orientation forms recently.This stage need be the very slow polymer fiber that has improved physical property with production, this improved physical property is near those performances (V.A.Marikhin and the L.P.Myasnikova that are obtained in the top mentioned laboratory scale experiment, " Nadmolekulyarnaya Struktura Polymerov ", St.Petersburg, Russia, Khimia (1977); V.A.Marikhin and L.P. Myasnikova, Progr, ColloidPolym, Sci., 92,39-51 (1993); W.N.Taylor and E.S.Clark, Polym, Eng, Sci., 18,518-526 (1978)).Can carry out F/s with drawing process of the present invention with traditional.Slower subordinate phase need be carried out with method and apparatus of the present invention.

Described heating chamber is preheated to given draft temperature (referring to following Table IV and V) under the static situation of chain.Open the Qianmen of described chamber, the mekralon of some rings is placed with receiving end that centers on described chain and the inboard that is supported on heating chamber by roller, close the door of described chamber, and temperature build-up is arrived the time (referring to Table IV and V) of second to the lasting 30-300 of fixed temperature.Open the driving electro-motor then, and described chain begins to move described fibrous ring is carried for passing through described heating chamber and while fiber in tension.When described fiber arrived the mouth of described chain, equipment was shut down, and opens the chamber door, and the fiber of the time of cost 20-300 second after will stretching cools off (referring to Table IV and V) before being removed.

Measure tensile property with Instron tensile test machine.Broken string length is 30mm, and lower clamping speed is 50mm/min.In Table VI, can see result with the result of shrinkage percentage.Each result is the aviation value of three tests.For relatively, presented the result of traditional commercial polypropylene fiber.

Like this, first result of experiment confirms, compare method of the present invention with traditional industrial process and can produce the industrial copolymer fiber with good physical property, and described physical property is near those performances that produced in laboratory scale experiment.For conventional molecular weight polypropylene fiber, our result is (referring to the Table VI) of the very approaching laboratory result of being reported in the paper of Taylor and Clark, just, our sample has the toughness of 0.9-1.2GPa (11-14.5gpd) and the stretching initial modulus of 17.7-20.5GPa (214-248gpd).

Table IV. the stretching condition of first draw stage of mekralon.

	??T ₁，??sec	??t ₁，??℃	??T ₂，??sec	??t ₂，??℃	?T ₃，?s?sec	??λ ₁	??(V _fiber) _max1??m/min	??V _strain1??％/sec
	??T ₁，??sec	??t ₁，??℃	??T ₂，??sec	??t ₂，??℃	?T ₃，?s?sec	??λ ₁	??(V _fiber) _max1??m/min	??V _strain1??％/sec	??1	??120	??80	??52	??80	??20	??7.6	??0.24	??12.7
??2	??100	??80	??50	??80	??20	??7.1	??0.25	??12.2	??1	??120	??80	??52	??80	??20	??7.6	??0.24	??12.7
??2	??100	??80	??50	??80	??20	??7.1	??0.25	??12.2	??3	??130	??80	??56	??80	??20	??7.7	??0.22	??12.0
??4	??120	??80	??52	??80	??20	??7.1	??0.24	??11.7	??3	??130	??80	??56	??80	??20	??7.7	??0.22	??12.0
??4	??120	??80	??52	??80	??20	??7.1	??0.24	??11.7	??5	??110	??80	??58	??80	??20	??7.7	??0.22	??11.5
??6	??120	??80	??54	??80	??20	??7.7	??0.23	??12.4	??5	??110	??80	??58	??80	??20	??7.7	??0.22	??11.5

t ₁The beginning draft temperature of-the first draw stage

t ₂The last draft temperature of-the first draw stage

λ ₁The extensibility of-the first draw stage

T ₁-under the static situation of fiber and chain, the chamber is heated to temperature t ₁Time

T ₂The time of-fiber in tension

T ₂-time of fiber after cooling stretching under fine and chain is static and the chamber door is opened the situation

(V _Fiber) _Max1The fiber speed V of-the first draw stage _FiberPeak

V _Strain1The fiber strain speed of-the first draw stage

Table V. the stretching condition of second draw stage of mekralon.

	??T ₄，??sec	??t ₃，??℃	??T ₅，??sec	??t ₄，??℃	??T ₆，??sec	??λ ₂	??(V _fiber) _max2??m/min	??V _strain1??％/sec	??λ＝??λ ₁×λ ₂
	??T ₄，??sec	??t ₃，??℃	??T ₅，??sec	??t ₄，??℃	??T ₆，??sec	??λ ₂	??(V _fiber) _max2??m/min	??V _strain1??％/sec	??λ＝??λ ₁×λ ₂	??1	??240	??140	??168	??140	??30	??2.6	??0.03	??0.9	??19.8
??2	??300	??140	??160	??140	??30	??2.6	??0.03	??1.0	??18.5	??1	??240	??140	??168	??140	??30	??2.6	??0.03	??0.9	??19.8
??2	??300	??140	??160	??140	??30	??2.6	??0.03	??1.0	??18.5	??3	??280	??155	??185	??155	??30	??2.7	??0.02	??1.1	??20.8
??4	??30	??135	??30	??142	??300	??2.3	??0.15	??4.3	??16.3	??3	??280	??155	??185	??155	??30	??2.7	??0.02	??1.1	??20.8
??4	??30	??135	??30	??142	??300	??2.3	??0.15	??4.3	??16.3	??5	??40	??130	??80	??139	??240	??2.4	??0.58	??1.8	??18.5
??6	??50	??133	??90	??143	??240	??2.5	??0.50	??1.7	??19.2	??5	??40	??130	??80	??139	??240	??2.4	??0.58	??1.8	??18.5

t ₃The beginning draft temperature of-the second draw stage

t ₄The last draft temperature of-the second draw stage

λ ₂The extensibility of-the second draw stage

T ₄-under the static situation of fiber and chain, the chamber is heated to temperature t ₃Time

T ₅-be from t in temperature ₃To t ₄Scope in the time time of fiber in tension

T ₆-time of fiber after cooling stretches under fiber and chain is static and the chamber door is opened the situation

(V _Fiber) _Max2The fiber speed V of-the second draw stage _FiberPeak

V _Strain2The fiber strain speed of-the second draw stage

λ-total extensibility

Table VI. the physical property of polypropylene (PP) fiber.

	Toughness, GPa, (gpd)	The stretching initial modulus, GPa, (gpd)	Breaking extension, %	Hot air shrinkage in the time of 132 ℃, %
	Toughness, GPa, (gpd)	The stretching initial modulus, GPa, (gpd)	Breaking extension, %	Hot air shrinkage in the time of 132 ℃, %	??1	??1.2(14.5)	??19.2(232)	??9.0	??0
??2	??0.9(10.9)	??19.1(231)	??6.6	??0	??1	??1.2(14.5)	??19.2(232)	??9.0	??0
??2	??0.9(10.9)	??19.1(231)	??6.6	??0	??3	??0.9(10.9)	??20.5(248)	??7.6	??0
??4	??1.1(13.3)	??17.8(215)	??10.2	??3	??3	??0.9(10.9)	??20.5(248)	??7.6	??0

	Toughness, GPa, (gpd)	The stretching initial modulus, GPa, (gpd)	Breaking extension, %	Hot air shrinkage in the time of 132 ℃, %
	Toughness, GPa, (gpd)	The stretching initial modulus, GPa, (gpd)	Breaking extension, %	Hot air shrinkage in the time of 132 ℃, %	??5	??0.9(10.9)	??17.7(214)	??7.6	??2
??6	??1.05(12.7)	??18.9(229)	??9.7	??2	??5	??0.9(10.9)	??17.7(214)	??7.6	??2
??6	??1.05(12.7)	??18.9(229)	??9.7	??2	Commercial PP fiber	??0.4-0.7 ^*)??(5-9)	??2.4-3.7 ^*)??(29-45)	??15-30 ^*)	??2-10 ^**)
Bench scale PP fiber ^***)	??0.93(11.2)	??22(266)	??6.2	??-	Commercial PP fiber	??0.4-0.7 ^*)??(5-9)	??2.4-3.7 ^*)??(29-45)	??15-30 ^*)	??2-10 ^**)

^*)Great Britain's cyc 2001 (http://www.britannica.com/eb/article? eu=126288), " Properties and Applications of Prominent Man-Made Fibres ".

^*)The result of the lax or heat setting of the fiber after the stretching that the minimum of shrinkage percentage can be in the above to be discussed.

^{* *)}W.N.Taylor and E.S.Clark, Polym.Eng.Sci., 18,518-526 (1978).PP resin: M _w=277,000, MWD=10.Heating medium-silicone oil.First draw stage: initial length-100mm, V _Fiber1=1m/min, V _Strain1=16.7%/sec, t ₂=130 ℃.Second draw stage: V _Fiber2=0.001m/min, V _Strain2=0.07%/sec, t ₄=130 ℃, total λ=25.

As what in Table VI, presented, for mekralon, to compare with traditional industrial process, toughness increases to 1.2-3.0 doubly, and initial modulus increases to 4.8-8.5 doubly, and breaking extension is reduced to 2/3-1/4 doubly.This is accompanied by good dimensional stability, and just, hot air shrinkage is 0-3% in the time of 132 ℃.

As an example, in Fig. 8, presented from the sample 1 of Table IV-VI and 4 stress-strain property.(the curve c of Fig. 8) compares with many commercial polypropylene fibers, and deformability load curve does not have, modulus and the surrender part or the platform (plateau) that may be low creep between indication senior middle school.

Advantage

By top given description, calculating and experimental result, to compare with the prior art of industrial fiber drawing process, it is obvious that the one or more following advantage of drawing process of the present invention and equipment becomes:

1. method and apparatus of the present invention provides with low fiber speed V _FiberIndustrial environment in tensile fiber, and simultaneously with fiber outlet speed V _OutletGot speed V with fiber _Take-upThereby the conventional industrial degree that maintains from hundreds of to a few km per minute scopes provides high-throughput.Speed V _OutletWith speed (V _Fiber) _MaxRatio greater than 1 to 1, in from about 10 to 1 to about 9000 to 1 scope.This realization causes some other advantages of presenting below.

2. method and apparatus of the present invention provides with low strain rate V in industrialization high-throughput process _StrainThe tensile fiber of the unanimity of (about 6-70%/sec just) and high stretching time T (just, it can reach tens seconds).In order to have consistent form and physical property in cross-sectional plane, this long stretching time is necessary fiber being heated to the ambient temperature of rising, and has the low temperature gradient in drawing process in the cross-sectional plane of fiber.

3. the method and apparatus of the present invention of low strain rate, long stretching time continuous consistent stretching for polymer fiber under situation not unexpected, that " impact " quickened provides more failure-free industrial process, compared with prior art causes the lower pulling force in the draw line, less broken string, less equipment to be shut down and less waste.

4. of the present inventionly be used for method and apparatus that continuous fiber stretches and do not using the industrial process that high-throughput is provided under the situation of expensive and extra gear power consumption, produce fiber dimensionally stable, low-shrinkage, keep the enhanced physical performance simultaneously, routine initial modulus as mentioned above, middle modulus and toughness.This may cause the remarkable saving of financial charges, expenditure of energy, and the possibility of littler industrial space.

5. method and apparatus of the present invention is provided for the industrial continuous process of the stretching of polymer fiber (flexible chain and all aromatic), it can be with their tensile property (just, toughness, Young's modulus, middle modulus, etc.) be improved near in laboratory experiment, obtained those.This method is that low cost of new generation, the high execution in industrial copolymer fiber (most probably melt-spun, conventional mol wt, the flexible chain) exploitation the missing link, and has the toughness of about 1-2GPa (12-22gpd) and the initial tensile modulus of about 20-100GPa (250-1000gpd) for the different polymer fibers of the tensile property with different theories value.Like this, for new generation of industrial melt-spun, flexible-chain polymer fiber, tough performance be traditional industrial flexible-chain polymer fiber 1.5-2.0 doubly and initial modulus can be several times of traditional industrial flexible-chain polymer fiber.

6. method and apparatus of the present invention is compared by the speed V that increases export with existing industrial process in some situations _OutletWith got speed V _Take-upThe productive output of remarkable increase can be provided, and keep existing and improved physical property simultaneously, routine initial modulus as mentioned above, middle modulus, toughness and shrinkage percentage.Outlet and the speed of having got can be 4500-6000m/min and more.

Conclusion, spin-off and scope

Like this, the reader can see that tensile fiber method and apparatus of the present invention can be used under the situation that does not reduce output significantly to be lower than exit velocity V _OutletWith got speed V _OutletFiber speed (V _Outlet) _MaxAnd remarkable low rate of strain V _Strain, than pulling force and longer stretching time manufacture fiber in the lower tensile fiber line of the prior art.

This is provided for obtaining some unprecedented results' basis, just, produces those the improved stretching and the polymer fiber of other physical property that has near obtaining in laboratory experiment industrially.This means that the exploitation of the low cost of a new generation, High Performance, flexible chain industrial copolymer fiber is feasible.On the one hand, the tough performance of new fiber be expensive, high strength discussed above, high modulus fibre (

Deng) the 1/3-1/2 of toughness.On the other hand, tough performance is 1.5 times of toughness of commercial flexible-chain polymer fiber of low-cost, low performance and higher.Initial modulus and middle modulus in addition can increase more.

Further, the method for this invention provides extra advantage.

Method of the present invention has solved another underlying issue of fibre technology--under the situation of not utilizing specific heat setting equipment, in the high-throughput process, how to produce industrial fiber with significantly improved tensile property and dimensional stability (low-shrinkage).This can cause saving financial charges significantly, and the possibility of littler industrial space.

It also provides more failure-free process, and its broken string and device that has is still less shut down, and lower waste causes significant saving.

Although top description comprises many details, these should not be considered to the qualification to scope of the present invention, and phase reaction is when the example that is considered to its embodiment that is presented.Many other variations are possible.For example:

1. in the embodiment of Figure 1A-3A, coiling and expansion flier are positioned in the outside of heating chamber, and heating chamber is around the major part of described conveying-tensile member simultaneously.

2. stretcher of the present invention can be arranged on a series of in or between two stretchers of the present invention, can provide other processing equipment; The arranged in succession of two and more a plurality of equipment of the present invention for obtain total extensibility be 10 to 1 and higher be especially favourable, be similar in the situation that the glue at super high molecular weight polymer spins like that, perhaps provide different draft temperatures in the different phase that stretches.

3. use traditional draw stage of cylindrical draw roll can be before stretcher of the present invention and afterwards; Roller can be used to trickle and adjusting precision of total extensibility; Draw roll can have and not have interior heater.

4. in the embodiment shown in Figure 1A, each ingot can be rotated ingot by several successive that linked together by Hooke's coupling and that be arranged to similar and different angle of divergence alpha and replace.

5. in another embodiment of the present invention, each conveying-tensile member (screw thread ingot or chain for instance) is made up of three parts.In part I, conveying-tensile member is arranged to be parallel to central axis, and in part II, they disperse (as the embodiment shown in Figure 1A-4A) from central axis, and they are arranged to be parallel to central axis once more in part III.Part I and III are in the outside of heating chamber, and their transformation point with part II is arranged to proper front and back at heating chamber respectively.Part II mainly is the inboard (at least 85% inboard in described chamber in its path) at heating chamber.That prevents that the temperature of the conveying-tensile member among the part II significantly is lower than the temperature of heating chamber when they leave described chamber.Part I begin locate fiber to be wound into around described conveying-tensile member with in succession fibrous ring by yarn wind-up device, I-III moves along part, and is launched by expanding unit in ending place of part III.In this configuration, described fiber enter heating chamber with the form of ring of coiling and described heating chamber after the form with the ring that coils be cooled.Described conveying-tensile member among the part II can be subdivided into two or more parts, and it is arranged continuously at the transformation point place.

6. in the embodiment of Figure 1A, the screw thread ingot be diameter towards mouth increase taper.The each point of fibrous ring rotates around central axis, and moves to the increase of output line speed from receiving end.The better conformability of the fiber after this result's optimization can cause stretching.

7. in the embodiment of Figure 1A-4A, the stepping electro-motor is used to drive described conveying-tensile member (screw thread ingot, endless chain, etc.), described coiling flier and described expansion flier.

8. in another embodiment of the present invention, described conveying-tensile member is a cantilever, and its mouth or receiving end are freely, do not support.This is the alternate design of the embodiment of Figure 1A-3A, has some benefits aspect this equipment taking off fiber from this equipment or fiber is fed into.In the situation of cantilevered conveying-tensile member, can under the situation of not launching flier, take off leading fibrous ring from described mouth by taking off mechanism with free mouth.

9. in the embodiment of Figure 1A, some screw thread ingots with the direction of the direction of rotation of other ingot on rotate.On the contrary, the ingot of rotation has opposite screw thread.For example, the ingot that rotates in one direction has right-hand thread and the ingot that rotates in the opposite direction has the left hand screw thread.Correspondingly, all ingots transmit fiber along identical direction thereon, but because the screw thread ingot that rotates on the contrary on the peripheral direction of fiber applies opposite power, the fibrous ring of coiling does not rotate around described central axis.

10. in the embodiment of Fig. 3 A, roller 98 has the tracer stylus (tracer pin) of the lateral surface that is connected to them, is used for substituting gear 100.These pins slide along the attachment slot of given configuration, and roller 98 is moved to mouth from receiving end simultaneously, and live-rollers 98.Like this,

gear

84,86 and 90 and axle 88 be not mounted.

11. in the embodiment of Fig. 2 A-4A, Cyclic Rings hawser, band, bar, rope or escalator-type ramp can be used as conveying-tensile member, substitute chain.

12. in the embodiment of Fig. 2 A-4A, biasing member comprises the directing plate that is installed in chain, hawser, band, bar, rope or the escalator-type ramp, rod or pin rather than roller and guiding semi-ring.

13. except in the embodiment of Figure 1A-4A, being presented, can be received on conveying-tensile member and/or the position that is removed from conveying-tensile member along the fiber of central axis by changing, change respectively at first fibrous ring at receiving end place and/or in the periphery of the leading fibrous ring of output and can change extensibility.

14. except in the embodiment of Figure 1A-4A, being presented,, can change the tensile fiber rate by regulating the distance between mouth and the central axis, the periphery of the leading fibrous ring of change.

15. in the embodiment of Figure 1A-3A, when being stretched, can use hot plate or active medium pond rather than heating chamber to handle described fiber.

16. in the embodiment of Fig. 3 A and 4A, each conveying-tensile member is the loop chain rather than the pair of parallel loop chain of a rotation.

17. in the embodiment of Fig. 5 A with the ring that wriggles, can change the tensile fiber rate by the mode identical with the embodiment of Figure 1A-4A, just, (a) receiving end by regulating conveyings-tensile member or the distance between mouth and the central axis and (b) be received on conveying-tensile member and/or the position of being taken off along the fiber of central axis from conveying-tensile member by change.

18. in the embodiment of Fig. 5 A with the ring that wriggles, the flier 132 of feed arrangement relies on electro-motor with the flier that takes off device 132 ' rather than is moved up and down along guiding piece 134 and 134 ' respectively by plunger 138 and 138 ' bump.

19. in the embodiment of Fig. 3 A and 4A, this equipment a plurality of fibre ends that can stretch, these a plurality of fibre ends be the bundle form that supports by roller 98 with the circular parallel groove of minority or the parallel end form of minority.

Therefore, scope of the present invention not should by shown in embodiment determine, determine but be equal to describe by appended claims and they legal.

Appendix

The name of symbol

The λ extensibility, just, the degree of tensile fiber

V _FiberFiber point is along the linear velocity of fibre axis in drawing process; In stretching of the present invention

In the equipment for each the fiber portion that between two adjacent conveyor-tensile members, is stretched

The different fiber points that divide, described speed is different

V _Fiber1Speed V when tensile fiber begins _Fiber

V _Fiber2Speed V when tensile fiber finishes _Fier

V _Surface1The linear surface speed of the feed rolls (situation that stretches in tradition by the roller that rotates

In)

V _Surface2Receive the linear surface speed (situation that stretches in tradition of roller by the roller that rotates

In)

(V _Fiber) _MaxFiber speed V in the drawing process _FiberPeak

V _FiberKAnd V _FiberPThe speed V of fiber point K and P in stretcher of the present invention (Fig. 6 B) _Fiber

V _IntletFiber entry speed, it is along the fibre axis that fiber is fed into stretcher

Single speed

V _OutletFiber outlet speed, it is that fiber buddle draw stage after will stretch is transported to

The fibre axis of the next stage of continuous fiber manufacture process or reception wraparound

Single speed

V _Take-upGot speed, it is along the fiber of having got the fiber after the stretching that receives on the wraparound

The single speed of axis

V _StrainRate of strain, it is the relative deformation (strain) of fiber in the unit time

The T stretching time

V _LoopFibrous ring is along the delivery speed of central axis

Between the adjacent ring in the d fiber disc along the distance of central axis, just, fiber

The pitch of dish

Δ T fibrous ring passes the needed time apart from d

The periphery of the leading fibrous ring of L output

The periphery of first fibrous ring at L ' receiving end place

The quantity of n conveying-tensile member

A V _Outlet/ V _Loop(V _Take-up/ V _LoopV wherein _Outlet=V _Take-up) ratio

B V _Take-up/ (V _Fiber) _MaxRatio

Angle between the central axis of the α angle of divergence--conveying-tensile member and equipment

L _FiberDistance, it is the rotation that centers on central axis at the ring of roller that passes through to rotate or ingot

In the process in the Δ T time distance of the each point process of described fibrous ring, simultaneously

Described ring passes through apart from d along central axis as a whole

L _TotalTotal distance, it is to change around central axis at (by ingot or the roller that rotates) ring

The distance of the each point process of fibrous ring described in the moving process, simultaneously described ring is done

For integral body from the receiving end to the mouth

L _AverageThe average periphery of the fibrous ring in the heating chamber

L _iAnd L _I+1The periphery of two adjacent fiber rings

The quantity of the fibrous ring in the N heating chamber

N ' has average periphery L _AverageThe quantity of fibrous ring, it has the L of equaling _Total

Total periphery.(with respect to the situation that does not have to rotate, in centering on as fibrous ring

The result that the axle line rotates passes the fibrous ring of heating chamber in stretching time T

The minimizing of quantity)

The M fiber disc is along the length of central axis

V _RolationFibrous ring in (by roller or the ingot that rotates) coiling rotates around central axis

Situation in the single speed of each point of fibrous ring; It equals these rollers or ingot

Linear surface speed.

Claims

1. the method for a continuously elongated fiber comprises:

(a) with entrance velocity fiber is fed into the equipment that is used for tensile fiber,

(b) provide tensile fiber equipment; It comprises conveying-stretching structure; Described conveying-stretching structure comprise at least two for delivery of and the conveying-tensile member of drawing of fiber simultaneously; Wherein said conveying-tensile member is arranged to around central axis; And have for the receiving terminal that receives fiber and be used for the output of output fiber; Described central axis is parallel to throughput direction; And described receiving terminal and output are all spaced apart along described central axis; Wherein compare with described receiving terminal; Described output and described central axis are fartherly spaced apart

(c) fiber is placed to continuously the ring of the coiling on the receiving end of described conveying-tensile member,

(d) the described fiber that stretches of the periphery by the swelling fiber ring under draft temperature and speed, along described central axis described fibrous ring is transported to described mouth from described receiving end by described conveying-tensile member simultaneously, the layer that comprises the fibrous ring of coiling is formed on described conveying-tensile member

(e) from the mouth of described conveying-tensile member take off continuously leading fibrous ring and

(f) with exit velocity V _OutletFrom the fiber of described tensile fiber equipment conveying drawn, wherein fiber outlet speed V _OutletWith fiber speed (V _Fiber) _MaxRatio greater than 1 to 1, fiber speed (V _Fiber) _MaxBe in drawing process the fiber point along the maxim of the linear velocity of fibre axis,

Wherein said conveying-tensile member makes described receiving end and mouth all supported,

Wherein said conveying-tensile member is positioned at a plane with described central axis and is oriented to become angle of divergence alpha with respect to described central axis.

2. the method for claim 1 provides described stretcher, and the length of wherein said conveying-stretching structure is that about 500mm is to about 6000mm.

3. the method for claim 1 provides described stretcher, and wherein the quantity of the fibrous ring that is stretched in described equipment is about 50 to about 600.

4. the method for claim 1 provides described stretcher, and wherein the periphery at the leading fibrous ring of described output is that about 2000mm is to about 5500mm.

5. the method for claim 1 provides described stretcher, and wherein extensibility is that about 2.3X is to about 7.7X.

6. the method for claim 1 provides described stretcher, wherein exit velocity V _OutletBe that about 500m/min is to about 6000m/min.

7. the method for claim 1 provides described stretcher, wherein fiber outlet speed V _OutletWith fiber speed (V _Fiber) _MaxRatio be about 250 to 1 to about 9000 to 1.

8. the method for claim 1 provides described tensile fiber equipment further to comprise:

(a) comprise the fiber feed arrangement of fiber-coiling flier, described fiber-coiling flier around described central axis rotate and with the fiber of input be placed to continuously the coiling on the receiving end of described conveying-tensile member ring and

(b) fiber that comprises fiber-expansion flier takes off device, and described fiber-expansion flier rotates around described central axis, launches and take off leading fibrous ring continuously at described output.

9. the method for claim 1, described conveying-tensile member is provided, described conveying-tensile member is selected from by the circulation loop chain, hawser, band, bar, the group that rope and escalator-type ramp form, wherein said conveying-tensile member further comprises a plurality of fiber-biasing members, described fiber-biasing member supports described fibrous ring, prevent that described fibrous ring from sliding along described conveying-tensile member with their any angle of divergence, and be convenient to carry, described fibrous ring simultaneously stretches under predetermined draft temperature, and under the situation of fiber broken string, the fibre end that breaks is transported to the operator can handles their output.

10. method as claimed in claim 9 provides described fiber-biasing member, and described fiber-biasing member is the roller that has circular groove, and wherein said fiber is placed in the groove of described roller and makes described roller support the fibrous ring of described coiling.

11. method as claimed in claim 10 provides described roller, described roller is driven around their axis, and the fibrous ring of described coiling is rotated around described central axis, and the contact point between described fiber and the roller is not changeless.

12. method as claimed in claim 9 provides described fiber-biasing member, described fiber-biasing member is selected from the group of being made up of semi-ring, plate, rod and pin.

13. the method for claim 1, described conveying-tensile member is provided, described conveying-tensile member is the rotation ingot with the fiber-biasing member that is selected from the group of being made up of screw thread and plug helix, wherein said rotation ingot makes the fibrous ring of described coiling rotate around described central axis, and the contact point between described fiber and the ingot is not changeless.

14. the method for claim 1 provides described tensile fiber equipment, described tensile fiber equipment comprises:

(a) two conveying-tensile members, it is selected from the group of being made up of circulation loop chain, hawser, band, bar, rope and escalator-type ramp,

Wherein said conveying-tensile member further comprises a plurality of fiber-biasing members, described fiber-biasing member supports described fibrous ring, prevent that described fibrous ring from sliding along described conveying-tensile member with their any angle of divergence, and be convenient to carry and simultaneously with the predetermined draft temperature described fibrous ring that stretches, and

Wherein said fiber-biasing member is selected from the group of being made up of roller, semi-ring, plate, rod and pin,

(b) comprise the feed arrangement of feeding flier, described feeding flier moves back and forth on the direction perpendicular to described central axis, with fiber that will input be placed to continuously coiling in succession on the receiving end of described conveying-tensile member wriggle ring and

(c) comprise the device that takes off that takes off flier, the described flier that takes off moves back and forth on the direction perpendicular to described central axis, at output leading fibrous ring is taken off continuously.

15. method as claimed in claim 14 provides

(a) described feed arrangement, its be constructed and arranged to a plurality of parallel input fibre ends be placed to continuously on the receiving end of described conveying-tensile member in succession the coiling sinuous ring, the a plurality of parallel layers that comprise fibrous ring are formed on described conveying-tensile member, wherein each layer is formed by a fibre end, and wherein said a plurality of fibre end along described central axis be transferred and stretched simultaneously by described conveying-tensile member and

(b) the described device that takes off, it is constructed and arranged to take off a plurality of leading fibrous rings continuously at described output.

16. the method for claim 1 provides described conveying-tensile member, it is selected from the group of being made up of circulation loop chain, hawser, band, bar, rope and escalator-type ramp,

Wherein said conveying-tensile member further comprises a plurality of fiber-biasing members, described fiber-biasing member supports described fibrous ring, prevent that described fibrous ring from sliding along described conveying-tensile member with their any angle of divergence, and be convenient to carry and the described fibrous ring that under predetermined draft temperature, stretches simultaneously

Wherein said fiber-biasing member is selected from the group of being made up of roller, semi-ring, plate, rod and pin, and

Wherein said conveying-stretching structure rotates and this rotation impels the fiber of input to be wound into the ring of the coiling in succession on the receiving end of described conveying-tensile member continuously and launches and take off leading fibrous ring continuously from the mouth of described conveying-tensile member around described central axis.

17. the method for claim 1, described stretcher is provided, it further comprises the device that is used to regulate the tensile fiber rate, described device is selected from the group of being made up of following: the device that (a) is used to regulate the distance between described receiving end and the described central axis, (b) be used to change the device that is received in the position on described conveying-tensile member along the described fiber of described central axis, (c) be used to regulate the device of the distance between described mouth and the described central axis and (d) be used to change and take off the device of the position of fiber from described conveying-tensile member along described central axis.

18. the method for claim 1 provides heating chamber, is used for heating described fiber when conveying and fiber in tension, wherein said heating chamber is supplied to by the thermal medium that is selected from the group of being made up of hot air, hot inert gas and superheated steam.

19. the method for claim 1 provides temperature booster, is used for heating described fiber when conveying and fiber in tension, wherein said temperature booster is selected from the group of being made up of hot plate and active medium pond.

20. one kind is used for the equipment of fiber in tension continuously, comprises conveying-stretching structure, described conveying-stretching structure comprises that at least two are used to carry and the conveying-tensile member of the described fiber that stretches simultaneously,

Wherein said conveying-tensile member is arranged to around central axis, and has the mouth that is used to receive the receiving end of described fiber and is used to export described fiber, described central axis is parallel to throughput direction, and described receiving end and described mouth are all spaced apart along described central axis

Wherein than described receiving end, described mouth and described central axis are fartherly spaced apart,

Wherein said stretcher is constructed and arranged to described fiber is fed into described stretcher, fiber is placed to continuously the ring of the coiling on the receiving end of described conveying-tensile member, take off leading fibrous ring continuously and with exit velocity V from the mouth of described conveying-tensile member _OutletCarry described fiber from described stretcher,

Wherein said conveying-tensile member is stretched the fiber of the loop type of coiling at draft temperature and velocity pull-down by the periphery of the described fibrous ring that expands, simultaneously described fibrous ring is transported to described mouth from described receiving end along described central axis, the layer that comprises the fibrous ring of coiling is formed on described conveying-tensile member

Wherein said tensile fiber equipment is constructed and arranged to provide the fiber outlet speed V greater than 1 to 1 _OutletWith fiber speed (V _Fiber) _MaxRatio, fiber speed (V _Fiber) _MaxBe in drawing process the fiber point along the maxim of the linear velocity of described fibre axis,

Wherein said conveying-tensile member makes receiving end and mouth all supported,

21. stretcher as claimed in claim 20, the length of wherein said conveying-stretching structure are that about 500mm is to about 6000mm.

22. stretcher as claimed in claim 20, wherein the quantity of the fibrous ring that is stretched in this equipment is about 50 to about 600.

23. stretcher as claimed in claim 20, wherein the periphery at the leading fibrous ring of described output is that about 2000mm is to about 5500mm.

24. stretcher as claimed in claim 20, wherein extensibility is that about 2.3X is to about 7.7X.

25. stretcher as claimed in claim 20, wherein exit velocity V _OutletBe that about 500m/min is to about 6000m/min.

26. equipment as claimed in claim 20, wherein fiber outlet speed V _OutletWith fiber speed (V _Fiber) _MaxRatio be about 250 to 1 to about 9000 to 1.

27. stretcher as claimed in claim 20 further comprises:

(a) comprise the feed arrangement of fiber-coiling flier, described fiber-coiling flier around described central axis rotate and with the fiber of input be placed to continuously the coiling on the receiving end of described conveying-tensile member ring and

(b) comprise the device that takes off of fiber-expansion flier, described fiber-expansion flier rotates, launches and take off leading fibrous ring continuously at the output of described conveying-tensile member around described central axis.

28. equipment as claimed in claim 20, wherein said conveying-tensile member is selected from by the circulation loop chain, hawser, band, bar, the group that rope and escalator-type ramp form, wherein said conveying-tensile member further comprises a plurality of fiber-biasing members, described fiber-biasing member supports described fibrous ring, prevent that described fibrous ring from sliding along described conveying-tensile member with their any angle of divergence, and be convenient to carry, described fibrous ring simultaneously stretches under predetermined draft temperature, and, under the situation of fiber broken string, the fibre end that breaks is transported to the operator can handles their output.

29. equipment as claimed in claim 28, wherein said fiber-biasing member are the rollers that has circular groove, wherein said fiber is placed in the groove of described roller and makes described roller support the fibrous ring of described coiling.

30. equipment as claimed in claim 29, wherein said roller is driven around their axis, and the fibrous ring of coiling is rotated around described central axis, and the contact point between described fiber and the roller is not changeless.

31. equipment as claimed in claim 28, wherein said fiber-biasing member are selected from the group of being made up of semi-ring, plate, rod and pin.

32. equipment as claimed in claim 20, wherein said conveying-tensile member is the rotation ingot with the fiber-biasing member that is selected from the group of being made up of screw thread and plug helix, wherein said rotation ingot makes the fibrous ring of described coiling rotate around described central axis, and the contact point between described fiber and the ingot is not changeless.

33. equipment as claimed in claim 20, wherein said stretcher comprises:

(b) comprise the feed arrangement of feeding flier, described feeding flier the sinuous ring that moves back and forth the coiling in succession on the receiving end that is placed to continuously with fiber that will input at described conveying-tensile member on the direction perpendicular to described central axis and

(c) comprise the device that takes off that takes off flier, the described flier that takes off moves back and forth on the direction perpendicular to described central axis with the leading fibrous ring with output and takes off continuously.

34. equipment as claimed in claim 33, wherein

(a) described feed arrangement be constructed and arranged to a plurality of parallel input fibre ends be placed to continuously on the receiving end of described conveying-tensile member in succession the coiling sinuous ring, the a plurality of parallel layers that comprise fibrous ring are formed on described conveying-tensile member, wherein each layer formed by a fibre end, and wherein said a plurality of fibre end is transferred and is stretched by described conveying-tensile member simultaneously along described central axis, and

(b) the described device that takes off is constructed and arranged to take off a plurality of leading fibrous rings continuously at described output.

35. equipment as claimed in claim 20, wherein said conveying-tensile member are selected from the group of being made up of circulation loop chain, hawser, band, bar, rope and escalator-type ramp,

Wherein said conveying-tensile member further comprises a plurality of fiber-biasing members, described fiber-biasing member supports described fibrous ring, prevent that described fibrous ring from sliding along described conveying-tensile member with their any angle of divergence, and be convenient to carry and simultaneously with the predetermined draft temperature described fibrous ring that stretches

Described conveying-stretching structure rotates and this rotation impels the fiber of input to be wound into the ring of the coiling in succession on the receiving end of described conveying-tensile member continuously and launches and take off leading fibrous ring continuously from the mouth of described conveying-tensile member around described central axis.

36. equipment as claimed in claim 20, it further comprises the device that is used to regulate the tensile fiber rate, described device is selected from the group of being made up of following: the device that (a) is used to regulate the distance between described receiving end and the described central axis, (b) be used to change the device that is received in the position on described conveying-tensile member along the described fiber of described central axis, (c) be used to regulate the device of the distance between described mouth and the described central axis and (d) be used to change and take off the device of the position of fiber from described conveying-tensile member along described central axis.

37. equipment as claimed in claim 20 further comprises heating chamber, is used for heating described fiber when conveying and fiber in tension, wherein said heating chamber is supplied to by the thermal medium that is selected from the group of being made up of hot air, hot inert gas and superheated steam.

38. equipment as claimed in claim 20 further comprises temperature booster, is used for heating described fiber when conveying and fiber in tension, wherein said temperature booster is selected from the group of being made up of hot plate and active medium pond.