CN107475851A - Friction unblock rotation type radially collapses pipe fabric and preparation method and application - Google Patents
Friction unblock rotation type radially collapses pipe fabric and preparation method and application Download PDFInfo
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- CN107475851A CN107475851A CN201710935155.8A CN201710935155A CN107475851A CN 107475851 A CN107475851 A CN 107475851A CN 201710935155 A CN201710935155 A CN 201710935155A CN 107475851 A CN107475851 A CN 107475851A
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D3/00—Woven fabrics characterised by their shape
- D03D3/02—Tubular fabrics
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
- Knitting Of Fabric (AREA)
Abstract
The invention discloses a kind of unblock rotation type that rubs radially to collapse pipe fabric and preparation method thereof and its application in elongated, belt-shaped samples critical component or sample collection bag.The pipe fabric stable warp thread by the way of angle symmetrical and the cross spider for having friction self-locking to act on weave, so as to form the tubular structure fabric that can radially collapse.Preparation method is：Prepare warp thread and cross spider and upper machine；Fabric manufacture equipment uses circular knitting machine；Warp thread is through close parallel arrangement on circular knitting machine；Two groups of yarns of cross spider are intersected with identical but reverse helical angle, sequentially woven with warp thread, are obtained friction unblock rotation type and are radially collapsed pipe fabric.Exquisite stabilization of pipe fabric construction prepared by the present invention, performance high-ductility Gao Mo, prepare and facilitate；With high withdrawing and low tensile elongation；3. as sample unit and sample collection bag in use, with higher sampling rate, original bedding information can preferably be kept, and occur without sample phenomenon.
Description
Technical field
The invention belongs to textile designs and pipe fabric knitting technical field, and in particular to a kind of thin in stretching action lower edge
High withdrawing smoothness when inflection withdrawing moves and the pipe fabric of low tensile elongation and its shaping occur for long straight pipe inside and outside wall
Technology.
Background technology
At present, the technology for pipe fabric forming and processing technology have been reported that more, to preparation method and prepare instrument and also have
Certain research, the application of pipe fabric also include the various fields such as chemical, energy conveying, Aero-Space, bio-medical,
But correlative study focus mostly on it is woven, knitting, braiding shaping traditional structure pipe fabric, to the pipe fabric with structure changes function
Study it is less, especially under stretching action along elongated straight pipe inside and outside wall occur inflection withdrawing move when high withdrawing smoothness and
The pipe fabric and its forming technique of low tensile elongation, and rub and unlock pipe fabric that rotation type radially collapses and preparation method thereof
Just more without research.
There is patent to prepare the tubing shunk with radical elasticity, the fabric is a kind of woven tubular fabric,
The warp thread of fabric from fine-denier aramid filament, PBO or aramid fiber and PBO mixed fiber yarn as warp thread, and to warp thread progress 100~
300 sth. made by twisting/m twisting, weft yarn is from aramid filament or the composite yarn of PBO long filament coating spandex stretch yarn, using plain weave as base
Plinth organization design, the pipe thickness of woven tubing is 0.2~0.3mm, and natural inside diameter ranges can be expanded to from 14mm
22.5mm.The woven tubing of institute has higher longitudinal strength and modulus, and the characteristic with flame-resistant high-temperature-resistant, has longitudinal direction
Inelastic deflection, intensity height, high temperature resistant, resistance to pulling force and it is resistant to chemical etching the characteristics of, it is not necessary to road is handled after warp, and size is steady
Fixed, elasticity persistently, it is surfacing, soft, be adapted to use under the operating conditions such as high temperature, compensate for existing tubing radially
The defects of elastic force difference, (there is radical elasticity to receive for topaz east, Li Yanwei, Liu Li, Fu Hongjun, Song Yuanjun, Li Jun, Wang Caifeng, one kind
The preparation method of contracting tubing, patent of invention, application number：201210290417.7 the applying date：On 08 15th, 2012, Shen
Please publication No.：The A of CN 102776649, data of publication of application：On November 14th, 2012).Also the ultra-thin tubulose of high-strength thin footpath is prepared
Fabric, solving existing tubing preparation method can not realize that the bore of tubing is small, tube wall is thin, and can not meet in spy
To lightweight needed for fabric and the requirement problem of anti-super-tensile under the conditions of different.From warp of the fine-denier PBO long filaments as tubing
Yarn and weft yarn, and warp thread is twisted, weft yarn is not twisted.Described preparation method can realize the rule of ultra-thin thin footpath tubing
Format, size stabilization, serialization, its adaptation of product is good, and production efficiency is high, and with resistance to strong pulling force, high temperature resistant, it is fire-retardant,
The characteristics of resistant to chemical etching, (topaz east, Li Yanwei, Liu Li, Fu Hongjun, Song Yuanjun, Li Jun, Wang Caifeng, a kind of high-strength thin footpath surpassed
The preparation method of thin tubing, patent of invention, application number：201210278973.2 the applying date：On 08 07th, 2012, Shen
Please publication No.：The A of CN 102767028, data of publication of application：On November 07th, 2012), category described in these patented technologies although
The tubing and preparation method that radical elasticity shrinks and high-strength thin footpath is ultra-thin are related to, but is not directed to provided by the present invention
With the pipe fabric for radially collapsing function, especially it is not directed to a kind of friction unblock rotation type provided by the present invention and radially collapses pipe
Fabric and preparation method thereof.
Woven tubular composite material has been widely used in no-dig technique and turned in lining formula pipe rehabilitation technology, is repaiied as one kind
The Quality-Technology of multiple buried underground damaged pipe, the technology can avoid the working procedure caused by direct excavated pavement well
More, long in time limit, cost is high, destroys road surface, obstruction, the defects of waste of resource.In implementation process, filling is soaked with resin in advance
One end upset of the internal lining pipe (i.e. tubular woven composite) of binding agent is fixed at the local excavation on ground, is then passed through
Air pressure or hydrodynamic thrust promote the other end of internal lining pipe constantly to turn over lining to pipeline inside, to make it be attached in damaged pipe
Wall, internal lining pipe is lining in the inside of damaged pipe in the form of tube-in-tube, complete the reparation to damaged pipe.Tubulose is woven
Composite seamless, globality and sealing are good, and fabric construction is uniform, and circumferential thickness is consistent, and strength is high, stress when turning over lining
Equilibrium, without stress concentrations, mechanical execution is easy, and repairing effect is good, therefore, there is patent that internal lining pipe is designed as into one
Tubular woven (Gu Zuo, Wang Rui, Dong Jiuzhang, Deng Xinhua, Ma Chongqi, Cao Guoquan, Yuan Competing, Zhang Shujie, the pipeline rehabilitation of secondary shaping
With internal lining pipe, utility model patent, application number：200920097021.4 the applying date：On 06 09th, 2009, Authorization Notice No.：
The U of CN 201531710, authorized announcement date：On 07 21st, 2010；Magnify group, Lang Rongliang, Cao Jingguo, Liu Yao, one kind is used to manage
The composite of road inversion method reparation, utility model patent, application number：201520082925.5 the applying date：02 month 2015 05
Day, Authorization Notice No.：The U of CN 204472039, authorized announcement date：On 07 15th, 2015).Model described in these patented technologies
Farmland only relates to the use of the lower tubulose woven composite material (internal lining pipe is included in the scope of the present invention) of extrapolability effect, but does not relate to
And the pipe fabric provided by the present invention that there is radial direction to collapse function, especially it is not directed to a kind of friction unblock provided by the present invention
Rotation type radially collapses pipe fabric and preparation method thereof.
Radial compliance be test artificial blood vessel and host blood vessel be adapted, because of blood pressure and caused by expansion and receive
Contracting performance, is an important indicator in clinical medicine, and its performance is good and bad to depend on blood vessel geometric shape and vascular wall in itself
Mechanical performance.The footpath of the blood vessel at different human body position, same blood vessel under the conditions of different pressures and under smooth muscle different conditions
It is different to compliance.The radial compliance problem for having begun working on tubing is had been reported that, to be led applied to medical science
Domain (JL angstroms of henry, PG Ackers that, includes the catheter in blood vessel of the miniature band of enhancing, patent of invention, application number：
200880119737.8 the applying date：On December 04th, 2008, Authorization Notice No.：The B of CN 101888871, authorized announcement date：
On 02 13rd, 2013；Ding Xin, Chen Ying, Li Yuling, Wang Lu, noble and unsullied, Zhao Xueqian, a kind of weaving people for improving radial compliance
Hematopoiesis pipe, patent of invention, application number：200910197649.6 the applying date：On October 23rd, 2009, Authorization Notice No.：CN
101803964 B, authorized announcement date：On December 14th, 2011；JG Houston, in RG Hu De, PA stone cloth
Very, tubular conduit, patent of invention, application number：201080052130.X the applying date：On November 17th, 2010, Authorization Notice No.：
The B of CN 102711663, authorized announcement date：On 04 22nd, 2015；J-M Hai De, bandage ring and the tubulose by axially cutting are knitted
Thing manufactures the method for the bandage ring, patent of invention, application number：201210336445.8 the applying date：On 09 12nd, 2012, Shen
Please publication No.：The A of CN 102995215, data of publication of application：On 03 27th, 2013；S Ao Nishenke, R De Sipigela
Thunder, there is the Chinese style fingerstall of flat or flattening filament, patent of invention, application number：201280060961.0 the applying date：
On October 24th, 2012, application publication number：CN 103987992A, data of publication of application：On 08 13rd, 2014；Liu Biqian, what
It is quick, Zhang Haijun, Li Qingfeng, Chen Liang, Ge Junbo, a kind of high intensity, high resiliency, degradable artificial cardiovascular stent and its preparation side
Method, patent of invention, application number：201310198816.5 the applying date：On 05 27th, 2013, application publication number：CN
103272289 A, authorized announcement date：On 09 04th, 2013).Category described in these patented technologies is only related to for small-bore
The pressure of tubing, cut, the research of shrinkage, dilatancy etc., but be not directed to it is provided by the present invention have radially contract
The pipe fabric of swollen function, especially it is not directed to a kind of friction unblock rotation type provided by the present invention and radially collapses pipe fabric and its system
Preparation Method.
The content of the invention
Problem to be solved by this invention is：One kind is provided inflection occurs along elongated straight pipe inside and outside wall under stretching action
The pipe fabric and its forming technique of high withdrawing smoothness and low tensile elongation when withdrawing moves.
The principle of the present invention is rotated thin to strengthen when by larger tensile force effect because friction unlocks using cross spider
Tubing (pipe fabric) is radially expanded or shunk, the elongation without influenceing radial direction yarn, i.e. the radial direction breathing of pipe fabric with
Radial deformation is unrelated, that is, the present invention does not have to radial deformation to reach the radial direction breathing of pipe fabric, it is ensured that during withdrawing pipe fabric
Low tensile elongation, while high withdrawing smoothness can be realized.
In order to solve the above problems, the invention provides one kind friction unblock rotation type radially to collapse pipe fabric, its feature
It is, the pipe fabric stable warp thread by the way of the cross spider that low-angle is symmetrical and has certain friction self-locking effect weaves,
So as to form the tubular structure fabric that can radially collapse.
Preferably, the span of the angle of the crossing (θ) of the cross spider is 60 °~90 °；The angle of the crossing (θ) and cross spider spiral shell
The relation of helical angle (φ) for revolving shaping is：The φ of θ=180 ° -2.
Preferably, the warp thread is using the linear elasticity weak twist filament yarn of high-modulus or without twisting filament；Two yarns of cross spider
Using the rigidity of the smooth low-friction coefficient in surface without twisting filament.
It is highly preferred that the linear elasticity filament yarn or the elongation at break without twisting filament are no more than 5%.
Preferably, the elastic extension of the warp thread is no more than 6%, so as to ensure maximal tensility of the pipe fabric in axial direction
No more than 6%；Under stretching action, by pipe head end corner, bending is turned back when making withdrawing motion into inwall, and the pipe is knitted
Thing tension force increases suddenly, and more than the pivoting friction torque of intersection cross spider, so that cross spider occurs by the center of circle of crosspoint
The intersection that the angle of the crossing (θ ') becomes big (θ ' ＞ θ) is rotated, and cross spider hardly bends in itself, but pipe fabric is produced and radially received
Contracting, shrinkage factor are not less than 5%.
Present invention also offers the preparation method that above-mentioned friction unblock rotation type radially collapses pipe fabric, it is characterised in that
Including step in detail below：
Step 1：Prepare warp thread and cross spider and upper machine；Fabric manufacture equipment uses circular knitting machine；
Step 2：Warp thread is through close parallel arrangement on circular knitting machine；
Step 3：Two groups of yarns of cross spider intersect with identical but reverse helical angle (φ+, φ -), sequentially with warp
Yarn is woven, and is obtained friction unblock rotation type and is radially collapsed pipe fabric.
Above-mentioned preparation method can be used in existing tubing preparation method not realizing under stretching action along elongated straight
The braiding that circular tube external wall enters inwall and has high withdrawing smoothness and low tensile elongation pipe fabric during inflection withdrawing shapes.
Pipe fabric, which is radially collapsed, present invention also offers above-mentioned friction unblock rotation type samples critical component in elongated, belt-shaped
Or the application in sample collection bag, available for space technology, geology investigation, the small blocks of solid rock of archaeological discovery, soil sample ground
Layer probing sampling and sample collection.
Compared with prior art, beneficial effects of the present invention are：
1. pipe fabric construction exquisiteness stabilization, performance high-ductility Gao Mo, prepare conveniently；
2. there is high withdrawing and low tensile elongation；
3. as sample unit and sample collection bag in use, with higher sampling rate, original bedding information can obtain
Kept to preferable, and occur without sample phenomenon.
Brief description of the drawings
Fig. 1 unlocks rotation type for friction provided by the invention and radially collapses pipe fabric section figure；
Fig. 2 a radially collapse pipe textile plane figure for friction unblock rotation type；
Fig. 2 b are by the pipe textile plane figure after larger tensile force effect；
Fig. 2 c radially collapse schematic diagram for friction unblock rotation；
In figure, 1- pipe fabrics, 11- cross spiders；12- warp thread；13- crosspoints；2- pipes；21- circular tube external walls；22- pipes
Inwall；23- pipe head ends corner；θ-the angle of the crossing；F- frictional force；θ1- by the angle of the crossing after higher stretching action；A- pipes are knitted
Thing structure micro unit；A1- by the pipe fabric construction micro unit after higher stretching action；
Fig. 3 radially collapses taking out force-time (F-t) curve map that pipe fabric is subject to for friction unblock rotation type.
Embodiment
To become apparent the present invention, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Raw material and equipment in embodiment 1-3 are state key research and development plan (2016YFC0802802) Funded Projects.
Embodiment 1
As shown in Fig. 1,2a-c, radially pipe fabric, the pipe are collapsed for a kind of friction unblock rotation type provided by the invention
The stable warp thread 12 by the way of the cross spider 11 that low-angle is symmetrical and has certain friction self-locking effect weaves of fabric 1, so as to structure
Into the tubular structure fabric that can radially collapse.
The value of the angle of the crossing θ between two cross spiders 11 during the braiding shaping of pipe fabric 1 is 60 °；Due to angle of the crossing θ and two
The helical angle φ of the helix of cross spider 11 relation is：The φ of θ=180 ° -2, therefore helical angle φ is 60 °.
The warp thread 12 of pipe fabric 1 uses the linear elasticity weak twist Kevlar long filaments of high-modulus；Cross spider 11 is smooth using surface
The non-twist Nomex long filaments of rigidity of low-friction coefficient.
The characteristics of above-mentioned pipe fabric 1 is：
1. the elastic extension of warp thread 12 is no more than 6%, so as to ensure that maximal tensility of the pipe fabric 1 in axial direction is no more than
6%；
2. under stretching action along elongated straight circular tube external wall 21 enter inwall 22 occur inflection withdrawing move when, pipe 2
Angle of the crossing θ occurs at crosspoint 13 for cross spider 11 on outer wall 211Diminish (θ1＜ θ) intersection rotate, pipe fabric 1 is radially expanded,
Expansion rate is no more than 5%；
3. crossing the termination of pipe 2, bending is turned back when making withdrawing motion into inwall 22, and the tension force of pipe fabric 1 increases suddenly, and is more than
The pivoting friction torque of cross spider 11 at crosspoint 13, and make cross spider 11 that angle of the crossing θ occur for the center of circle with crosspoint 132Become big
(θ2＞ θ) intersection rotate, and cross spider 11 itself hardly bends, but the generation radial contraction of pipe fabric 1, and shrinkage factor is not
Less than 5%.
Above-mentioned friction unblock rotation type radially collapses comprising the following steps that for the preparation method of pipe fabric：
Step 1：Described warp thread 12 prepares and cross spider 11 prepares and upper machine；Fabric manufacture equipment used is circular knitting machine；
Step 2：Organizine 12 is with 180/10cm through close parallel arrangement on circular knitting machine used；
Step 3：Two groups of yarns of cross spider 11 intersect with identical but reverse helical angle (60 °, -60 °), sequentially with
Warp thread 12 is woven, and the unblock rotation type that must rub radially collapses pipe fabric.
Embodiment 2
As shown in Fig. 1,2a-c, radially pipe fabric, the pipe are collapsed for a kind of friction unblock rotation type provided by the invention
The stable warp thread 12 by the way of the cross spider 11 that low-angle is symmetrical and has certain friction self-locking effect weaves of fabric 1, so as to structure
Into the tubular structure fabric that can radially collapse.
The value of the angle of the crossing θ between two cross spiders 11 during the braiding shaping of pipe fabric 1 is 70 °；Due to angle of the crossing θ and two
The helical angle φ of the helix of cross spider 11 relation is：The φ of θ=180 ° -2, therefore helical angle φ is 55 °.
The warp thread 12 of pipe fabric 1 uses the linear elasticity weak twist Kevlar long filaments of high-modulus；Cross spider 11 is smooth using surface
The non-twist PBO long filaments of rigidity of low-friction coefficient.
The characteristics of above-mentioned pipe fabric 1 is：
1. the elastic extension of warp thread 12 is no more than 6%, so as to ensure that maximal tensility of the pipe fabric 1 in axial direction is no more than
6%；
2. under stretching action along elongated straight circular tube external wall 21 enter inwall 22 occur inflection withdrawing move when, pipe 2
Angle of the crossing θ occurs at crosspoint 13 for cross spider 11 on outer wall 211Diminish (θ1＜ θ) intersection rotate, pipe fabric 1 is radially expanded,
Expansion rate is no more than 5%；
3. crossing the termination of pipe 2, bending is turned back when making withdrawing motion into inwall 22, and the tension force of pipe fabric 1 increases suddenly, and is more than
The pivoting friction torque of cross spider 11 at crosspoint 13, and make cross spider 11 that angle of the crossing θ occur for the center of circle with crosspoint 132Become big
(θ2＞ θ) intersection rotate, and cross spider 11 itself hardly bends, but the generation radial contraction of pipe fabric 1, and shrinkage factor is not
Less than 5%.
Above-mentioned friction unblock rotation type radially collapses comprising the following steps that for the preparation method of pipe fabric：
Step 1：Described warp thread 12 prepares and cross spider 11 prepares and upper machine；Fabric manufacture equipment used is circular knitting machine；
Step 2：Organizine 12 is with 200/10cm through close parallel arrangement on circular knitting machine used；
Step 3：Two groups of yarns of cross spider 11 intersect with identical but reverse helical angle (55 °, -55 °), sequentially with
Warp thread 12 is woven, and the unblock rotation type that must rub radially collapses pipe fabric.
Embodiment 3
As shown in Fig. 1,2a-c, radially pipe fabric, the pipe are collapsed for a kind of friction unblock rotation type provided by the invention
The stable warp thread 12 by the way of the cross spider 11 that low-angle is symmetrical and has certain friction self-locking effect weaves of fabric 1, so as to structure
Into the tubular structure fabric that can radially collapse.
The value of the angle of the crossing θ between two cross spiders 11 during the braiding shaping of pipe fabric 1 is 80 °；Due to angle of the crossing θ and two
The helical angle φ of the helix of cross spider 11 relation is：The φ of θ=180 ° -2, therefore helical angle φ is 50 °.
The warp thread 12 of pipe fabric 1 uses the linear elasticity weak twist Kevlar long filaments of high-modulus；Cross spider 11 is smooth using surface
The non-twist PI long filaments of rigidity of low-friction coefficient.
The characteristics of above-mentioned pipe fabric 1 is：
1. the elastic extension of warp thread 12 is no more than 6%, so as to ensure that maximal tensility of the pipe fabric 1 in axial direction is no more than
6%；
2. under stretching action along elongated straight circular tube external wall 21 enter inwall 22 occur inflection withdrawing move when, pipe 2
Angle of the crossing θ occurs at crosspoint 13 for cross spider 11 on outer wall 211Diminish (θ1＜ θ) intersection rotate, pipe fabric 1 is radially expanded,
Expansion rate is no more than 5%；
3. crossing the termination of pipe 2, bending is turned back when making withdrawing motion into inwall 22, and the tension force of pipe fabric 1 increases suddenly, and is more than
The pivoting friction torque of cross spider 11 at crosspoint 13, and make cross spider 11 that angle of the crossing θ occur for the center of circle with crosspoint 132Become big
(θ2＞ θ) intersection rotate, and cross spider 11 itself hardly bends, but the generation radial contraction of pipe fabric 1, and shrinkage factor is not
Less than 5%.
Above-mentioned friction unblock rotation type radially collapses comprising the following steps that for the preparation method of pipe fabric：
Step 1：Described warp thread 12 prepares and cross spider 11 prepares and upper machine；Fabric manufacture equipment used is circular knitting machine；
Step 2：Organizine 12 is with 220/10cm through close parallel arrangement on circular knitting machine used；
Step 3：Two groups of yarns of cross spider 11 intersect with identical but reverse helical angle (50 °, -50 °), sequentially with
Warp thread 12 is woven, and the unblock rotation type that must rub radially collapses pipe fabric.
As shown in figure 3, friction unblock rotation type made from embodiment 1-3 is radially collapsed into pipe fabric and conventional tubular fabric
Taking out force test is carried out on the smooth instrument of tubing withdrawing, taking out force-time (F-t) curve map that pipe fabric is subject to can be obtained.
With reference to following 5 formula, selective analysis friction unblock rotation type radially collapses pipe fabric and conventional tubular fabric in maximum withdrawing
The situation of change of stretching force value, fabric thickness and the radial strain received at power, try to achieve the rate of descent of relevant parameter, falling rate or change
Kind rate, specific data target are shown in Table 1.
Compared with conventional tubular fabric, the rate of descent δ of pipe fabric maximum taking out force of the present inventionFmax@Calculation formula
For：
In formula, Fmax0The maximum taking out force that-conventional tubular fabric is subject to；Fmax@The maximum that-pipe fabric of the present invention is subject to
Taking out force.
Including the present invention, compared with the fabric thickness under nature, tubing is at maximum taking out force
Thickness falling rate δTFmaxCalculation formula be：
In formula, ToThickness under-tubing nature；TFmaxThickness of-the tubing at maximum taking out force.
Compared with conventional tubular fabric, thickness improvement rate δ of the pipe fabric of the present invention at maximum taking out forceTFmax@'s
Calculation formula is：
In formula, TFmax0Thickness of-conventional pipe the fabric at maximum taking out force；TFmax@- pipe fabric of the present invention is in maximum
Thickness at taking out force.
Compared with conventional tubular fabric, radial strain improvement rate of the pipe fabric of the present invention at maximum taking out force
δεjFmax@Calculation formula：
In formula, εjFmax0Radial strain of-conventional pipe the fabric at maximum taking out force, εjFmax@- pipe fabric of the present invention
Radial strain at maximum taking out force.
Compared with conventional tubular fabric, pipe fabric of the present invention acted on by withdrawing after stretching improvement rate δεlFmax@Meter
Calculating formula is：
In formula, ε1Fmax0- conventional tubular fabric acted on by withdrawing after drawing deformation, ε1Fmax@- pipe of the present invention is knitted
Thing acted on by withdrawing after drawing deformation.
Table 1
In table 1, FmaxThe maximum taking out force that-tubing is subject to；δFmax@- compared with conventional tubular fabric, it is prepared by the present invention
Pipe fabric maximum taking out force rate of descent；Thickness under To- tubing natures；TFmax- tubing is taken out in maximum
Thickness at pull out force；δTFmaxThe thickness falling rate of-tubing at maximum taking out force；δTFmax@- with conventional tubular fabric phase
Than the thickness improvement rate of pipe fabric prepared by the present invention at maximum taking out force；εiFmax- tubing is at maximum taking out force
Radial strain；δεjFmax@- compared with conventional tubular fabric, radial strain of the pipe fabric of the invention prepared at maximum taking out force
Improvement rate；ε1Fmax- tubing acted on by withdrawing after drawing deformation；δε1Fmax@- compared with conventional tubular fabric, the present invention
The pipe fabric of preparation acted on by withdrawing after stretching improvement rate.
From Fig. 3 and table 1, compared with conventional tubular fabric, friction unblock rotation type radially collapses the maximum of pipe fabric
Taking out force declines more than 50%, and stretching improves more than 35%.Thus prove, the withdrawing resistance of pipe fabric is substantially reduced, and fabric leads to
The smoothness for crossing pipe improves, and the elongation strain of fabric reduces, and size is more stable.
Claims (7)
1. one kind friction unblock rotation type radially collapses pipe fabric, it is characterised in that the pipe fabric (1) using angle symmetrical and
The stable warp thread (12) of mode that the cross spider (11) for having friction self-locking to act on weaves, so as to form the tubular structure that can radially collapse
Fabric.
2. friction unblock rotation type as claimed in claim 1 radially collapses pipe fabric, it is characterised in that the cross spider (11)
The angle of the crossing (θ) span be 60 °~90 °；The angle of the crossing (θ) and the pass of the helical angle (φ) of cross spider (11) spiral forming
It is to be：The φ of θ=180 ° -2.
3. friction unblock rotation type as claimed in claim 1 radially collapses pipe fabric, it is characterised in that the warp thread (12) is adopted
With linear elasticity filament yarn or without twisting filament；Two yarns of cross spider (11) are using rigidity without twisting filament.
4. friction unblock rotation type as claimed in claim 3 radially collapses pipe fabric, it is characterised in that the linear elasticity long filament
Yarn or elongation at break without twisting filament are no more than 5%.
5. friction unblock rotation type as claimed in claim 1 radially collapses pipe fabric, it is characterised in that the warp thread (12)
Elastic extension is no more than 6%, so as to ensure that maximal tensility of the pipe fabric (1) in axial direction is no more than 6%；In stretching action
Under, by pipe (2) head end corner (23), bending is turned back when making withdrawing motion into inwall (22), pipe fabric (1) tension force
It is steep to increase, and more than the pivoting friction torque of crosspoint (13) place's cross spider (11), so that cross spider (11) is with crosspoint (13)
The big intersection of angle of the crossing change occurs for the center of circle to rotate, pipe fabric (1) produces radial contraction, and shrinkage factor is not less than 5%.
6. the friction unblock rotation type described in a kind of claim 1-5 any one radially collapses the preparation method of pipe fabric, its
It is characterised by, including step in detail below：
Step 1：Prepare warp thread (12) and cross spider (11) and upper machine；Fabric manufacture equipment uses circular knitting machine；
Step 2：Warp thread (12) is through close parallel arrangement on circular knitting machine；
Step 3：Two groups of yarns of cross spider (11) intersect with identical but reverse helical angle (φ+, φ -), sequentially with warp
Yarn (12) is woven, and is obtained friction unblock rotation type and is radially collapsed pipe fabric.
7. the friction unblock rotation type described in a kind of claim 1-5 any one radially collapses pipe fabric and sampled in elongated, belt-shaped
Application in critical component or sample collection bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935155.8A CN107475851B (en) | 2017-10-10 | 2017-10-10 | Friction unlocking rotation type radial shrinkage and expansion pipe fabric and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935155.8A CN107475851B (en) | 2017-10-10 | 2017-10-10 | Friction unlocking rotation type radial shrinkage and expansion pipe fabric and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107475851A true CN107475851A (en) | 2017-12-15 |
| CN107475851B CN107475851B (en) | 2019-12-31 |
Family
ID=60605925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710935155.8A Active CN107475851B (en) | 2017-10-10 | 2017-10-10 | Friction unlocking rotation type radial shrinkage and expansion pipe fabric and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114192997A (en) * | 2021-11-18 | 2022-03-18 | 莆田市雷腾激光数控设备有限公司 | Laser cutting method for braid elastic band |
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| DE19719218A1 (en) * | 1997-05-11 | 1998-11-12 | Alexander Dr Ing Buesgen | Tubular woven fabric made of warps and wefts |
| CN1321207A (en) * | 1998-10-02 | 2001-11-07 | 约翰·堡格 | Webbing and method for producing same |
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| CN114192997A (en) * | 2021-11-18 | 2022-03-18 | 莆田市雷腾激光数控设备有限公司 | Laser cutting method for braid elastic band |
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| CN107475851B (en) | 2019-12-31 |
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