CN115074888A - Forming method for safety air bag mesh cloth - Google Patents
Forming method for safety air bag mesh cloth Download PDFInfo
- Publication number
- CN115074888A CN115074888A CN202210832605.1A CN202210832605A CN115074888A CN 115074888 A CN115074888 A CN 115074888A CN 202210832605 A CN202210832605 A CN 202210832605A CN 115074888 A CN115074888 A CN 115074888A
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- fibers
- warp
- weft fibers
- weft
- weaving
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000004744 fabric Substances 0.000 title claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 230
- 238000009941 weaving Methods 0.000 claims abstract description 31
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 6
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/02—Inflatable 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
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/12—Vehicles
- D10B2505/124—Air bags
Abstract
The invention discloses a forming method for an airbag screen cloth, which comprises the following steps of S1 weaving a first sparse part, wherein two adjacent weft fibers are arranged loosely; s2, weaving a first dense part, wherein two adjacent weft fibers are closely arranged; s3, weaving a buffer part, namely weaving a plurality of weft and weft yarns to joint seams, then weaving weft fibers in a non-fiber manner, and keeping the first warp fibers and the second warp fibers moving along the cloth discharging direction; s4, weaving a second dense part which is the same as the first dense part; s5, looping, wherein the tension of the first warp fibers is kept, the reed plate pushes the weft fibers of the second dense part towards the direction of the first dense part, the second warp fiber units of the second dense part move together with the weft fibers, and the weft fibers of the second dense part are close to the weft fibers of the first dense part; s6, weaving the second sparse part, which is the same as the first sparse part, the invention can weave the sparse part and the dense part of the mesh fabric quickly, and the looped side of the buffer part can not be loose, the weaving efficiency is high, and the product quality is stable.
Description
Technical Field
The invention belongs to the technical field of production of airbag mesh cloth, and particularly relates to a forming method for airbag mesh cloth.
Background
At present, each airbag such as a steering wheel airbag, a side airbag and a knee airbag on an automobile is required to be opened by explosion without plastic fragments flying out.
Chinese patent application No. 2018215661621, which was a prior application by the applicant, discloses a mesh fabric for an airbag frame of an automobile instrument panel, which includes a fiber layer and a cover layer covering the fiber layer, the fiber layer includes: a first fiber unit and a second fiber unit extending in a first direction; wherein the first fibre unit has at least two bundles of first fibres twisted with each other, the second fibre unit has at least a second fibre, the second fibre unit also has a third fibre extending in the same direction as the second fibre, the fibre layer also includes a fourth fibre extending in the second direction, the fourth fibre is twisted together with the first fibre unit and the second fibre unit to form a support zone, while also having a part which is not twisted with the first fibre unit and the second fibre unit, this part being a buffer zone.
As shown in fig. 1, the fourth fibers are arranged: a sparse part A with a large gap and a dense part B with a small gap are formed on the mesh cloth, so that the fiber layer can be fully infiltrated, a covering layer is conveniently formed on the fiber layer, and the flatness and the hardness of the mesh cloth are ensured. The dense parts are correspondingly arranged at the buffer area C and the edges at two sides of the buffer area.
How to ensure that the fourth fiber (weft fiber) can form a dense part with small gap in the buffer zone during production and make the first fiber unit and the second fiber unit looped (warp fiber of the covering layer) as a problem to be solved; some manufacturers use a mode of producing towels to enable the buffer area to achieve the purpose of looping, but the mode cannot enable the dense part to form small gaps, and the gaps of fiber layers in the whole buffer area are large and not tight enough.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the weaving machine which can quickly weave the sparse part and the dense part of the mesh cloth, ensures that the looped sides of the buffer part cannot be loosened, and has high weaving efficiency and stable product quality.
In order to achieve the purpose, the invention provides the following technical scheme: a forming method for an airbag mesh fabric comprises the following steps:
s1, weaving the first sparse part:
the fiber layer enables the first warp fibers and the weft fibers to be interwoven up and down;
a cover layer interweaving the second warp fiber units with the weft fibers;
two adjacent weft fibers are arranged loosely;
s2, weaving the first dense part:
the fiber layer enables the first warp fibers and the weft fibers to be interwoven up and down;
a cover layer interweaving the second warp fiber units with the weft fibers;
two adjacent weft fibers are closely arranged;
s3, knit buffer:
a fiber layer that causes the first warp fibers to be non-interwoven with the weft fibers;
a cover layer that causes the weft fibers to be non-interwoven with the second warp fibers;
s4, weaving the second dense part:
the fiber layer interweaves the first warp fibers and the weft fibers up and down;
a cover layer interweaving the second warp fiber units with the weft fibers;
two adjacent weft fibers are closely arranged;
s5, looping:
tension is maintained on the first warp fibers, tension is released from the second warp fiber units, so that the weft fibers of the second dense part are pushed towards the direction of the first dense part, the second warp fiber units of the second dense part move along with the weft fibers in the direction of the first dense part, and the weft fibers of the second dense part are close to the weft fibers of the first dense part;
s6, weaving a second sparse part:
the fiber layer interweaves the first warp fibers and the weft fibers up and down;
a cover layer interweaving the second warp fiber units with the weft fibers;
two adjacent weft fibers are loosely arranged.
Further in step S4, when part of the second dense parts is knitted, step S5 is performed, and all of the second dense parts are knitted.
Further prior to step S3, the calking portion is woven to interweave the first warp fibers with the weft fibers up and down to define the looping direction.
Further in steps S2 and S4, the advancing speed of the first and second warp fibers is decreased and/or the conveying speed of the weft fibers is increased.
Further, weaving is performed by a rapier loom, and in step S5, the weft fibers in the second dense part are pushed in the direction of the first dense part by a reed board.
A further second warp fiber unit includes at least two second warp fibers twisted with each other and forming twist holes through which the weft fibers pass in steps S1, S2, S4, S6.
Further second warp stop cells comprise individual second warp fibers, and in steps S1, S2, S4, S6 the weft fibers are interwoven with the second warp fibers up and down.
Compared with the prior art, the invention has the beneficial effects that: the whole safety airbag screen cloth can be woven at one time, the weaving efficiency is high, the product quality is good, secondary processing is not needed for looping, and the equipment cost is not needed to be increased.
Drawings
FIG. 1 is a front view of an airbag mesh;
FIG. 2 is a front view of the inventive fabric for an airbag;
FIG. 3 is a side view of the present invention for an airbag web;
FIG. 4 is a side view before the looping step;
FIG. 5 is a side view after the looping step;
FIG. 6 is a schematic representation of first warp fibers, second warp fibers, and weft fibers being interwoven;
fig. 7 is a side view with caulks.
Reference numerals: 1. a first thin portion; 2. a first dense section; 3. a buffer section; 4. a second dense section; 5. a second thin portion; 6. weft fibers; 7. a second warp fiber unit; 71. a second warp fiber; 8. a first warp fiber; 9. and filling the gap.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a number" or "a number" means two or more unless explicitly specified otherwise.
A method of forming an airbag web, in this embodiment, for example, where the second warp-fiber unit 7 includes at least two second warp fibers 71 twisted with each other, includes the steps of:
s1, weaving the first sparse portion 1:
a fiber layer that interweaves the first warp fibers 8 and the weft fibers 6 up and down;
covering layers, enabling the weft fibers 6 to pass through the interweaving holes of the second warp fiber units 7, wherein the second warp fiber units 7 comprise at least two beams of second warp fibers 71 which are interwoven mutually and form interweaving holes;
two adjacent weft fibers 6 are arranged loosely;
in the embodiment, the number of the first warp fibers 8 and the number of the second warp fiber units 7 are not required to be the same, and the first warp fibers 8 have lower strength than the second warp fibers 71, and the first warp fibers 8 are snapped at the buffer part 3 when the airbag is detonated;
as shown in fig. 6, the first warp fibers 8 are only interwoven with the weft fibers 6 up and down, and no interweaving or twisting relationship is required between the two first warp fibers 8;
the second warp fiber unit 7 is exemplified by having two bundles of second warp fibers 71, the second warp fibers 71 not only interweave with the weft fibers 6 up and down, but also the two bundles of second warp fibers 71 are also intertwined with each other;
s2, weaving the first dense part 2:
a fiber layer that interweaves the first warp fibers 8 and the weft fibers 6 up and down;
a covering layer, which makes the weft fiber 6 pass through the twist weaving holes of the second warp fiber unit 7;
two adjacent weft fibers 6 are closely arranged;
the weaving process of the first dense part 2 and the first thin and sparse part 1 is the same, and the distance between adjacent wefts is smaller than that of the first thin and sparse part 1 at the moment;
in this embodiment, when the rapier loom is used to weave the mesh cloth, the advancing speed of the first warp fibers 8 and the second warp fibers 71 can be reduced and/or the conveying speed of the weft fibers 6 can be increased to realize the formation of the first dense part 2;
s3, fabric buffer 3:
a fiber layer that leaves the first warp fibers 8 and weft fibers 6 non-interwoven;
a cover layer that leaves weft fibers 6 and second warp fibers 71 non-interwoven;
this process is a weaving process in which first warp fibers 8 and second warp fibers 71 advance in the direction of the exit, but the rapier does not act, and weft fibers 6 do not participate in the weaving until the unwoven areas of first warp fibers 8 and second warp fibers 71 reach a predetermined length;
s4, weaving the second dense part 4:
a fiber layer that interweaves the first warp fibers 8 and the weft fibers 6 up and down;
a covering layer, which makes the weft fiber 6 pass through the twist weaving holes of the second warp fiber unit 7;
two adjacent weft fibers 6 are closely arranged;
this process is the same as weaving the first dense part 2;
s5, looping:
tension is maintained in the first warp fibers 8, tension is removed from the second warp fiber units 7, the weft fibers 6 of the second dense parts 4 are pushed in the direction of the first dense parts 2, the second warp fiber units 7 of the second dense parts 4 move in the direction of the first dense parts 2 together with the weft fibers 6, and the weft fibers 6 of the second dense parts 4 are close to the weft fibers 6 of the first dense parts 2;
as shown in fig. 4, in the process, the last weft fiber 6 that has just been woven is held by the reed board and pushed toward the first dense part 2, since the weft fiber 6 is only interwoven with the first warp fiber 8 up and down, the weft fiber 6 and the first warp fiber 8 can slide, and at the same time, since the second warp fiber 71 is intertwined with each other, the second warp fiber 71 has a larger friction force with the weft fiber 6 and is substantially fixed to each other, and here the second warp fiber 71 moves in the same direction as the weft fiber 6 toward the first dense part 2, so that the second warp fiber 71 of the covering layer is stacked and raised in step S4 to form a looped state as shown in fig. 5;
in the drawings of the present application, the size of the loops is merely an illustration, and in practice it may be set as desired.
In one embodiment, after some of the second dense portions 4 are woven, step S5 is performed to weave all of the second dense portions 4, so that the friction between the weft fibers 6 and the first warp fibers 8 can be reduced to facilitate the movement of the weft fibers 6 and the second warp fibers 71;
s6, weaving the second sparse portion 5:
a fiber layer that vertically interweaves the first warp fibers 8 with the weft fibers 6;
covering layers, enabling the weft fibers 6 to pass through the interweaving holes of the second warp fiber units 7, wherein the second warp fiber units 7 comprise at least two beams of second warp fibers 71 which are interwoven mutually and form interweaving holes;
two adjacent weft fibers 6 are arranged loosely;
the weaving here is the same as the first thin portion 1 in step S1.
In this embodiment, it is preferable that before step S3, the caulking portion 9 be woven so that the first warp fibers 8 and the weft fibers 6 are vertically interwoven to determine the looping direction.
As shown in fig. 7, here, the weft fibers 6 in the caulking part 9 are used for filling the gap at the bottom of the loop, and when the second dense part 4 moves to the weft fibers 6 of the first dense part 2, because the material itself has certain elasticity and internal force, the weft fibers 6 of the caulking part 9 can prevent the weft fibers 6 of the first dense part 2 and the second dense part 4 from springing back to cause an excessively large distance, and at the same time, they block the downward direction, so that the second warp fibers 71 loop upward.
In another embodiment, where the second warp fiber unit 7 includes single second warp fibers 71, i.e., any two second warp fibers 71 are not twisted, weft fibers 6 are interwoven with second warp fibers 71 up and down in steps S1, S2, S4, S6.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. A forming method for an airbag screen cloth is characterized by comprising the following steps:
s1, weaving the first sparse part:
the fiber layer enables the first warp fibers and the weft fibers to be interwoven up and down;
a cover layer interweaving the second warp fiber units with the weft fibers;
two adjacent weft fibers are arranged loosely;
s2, weaving the first dense part:
the fiber layer enables the first warp fibers and the weft fibers to be interwoven up and down;
a cover layer interweaving the second warp fiber units with the weft fibers;
two adjacent weft fibers are closely arranged;
s3, knit buffer:
a fiber layer that causes the first warp fibers to be non-interwoven with the weft fibers;
a cover layer that causes the weft fibers to be non-interwoven with the second warp fibers;
s4, weaving the second dense part:
the fiber layer interweaves the first warp fibers and the weft fibers up and down;
a cover layer interweaving the second warp fiber units with the weft fibers;
two adjacent weft fibers are closely arranged;
s5, looping:
tension is maintained on the first warp fibers, tension is released from the second warp fiber units, so that the weft fibers of the second dense part are pushed towards the direction of the first dense part, the second warp fiber units of the second dense part move along with the weft fibers in the direction of the first dense part, and the weft fibers of the second dense part are close to the weft fibers of the first dense part;
s6, weaving a second sparse part:
the fiber layer enables the first warp fibers and the weft fibers to be interwoven up and down;
a cover layer interweaving the second warp fiber units with the weft fibers;
two adjacent weft fibers are loosely arranged.
2. The molding method for an airbag mesh according to claim 1, characterized in that: in step S4, when part of the second dense portions is knitted out, step S5 is performed, and all of the second dense portions are knitted out.
3. The molding method for an airbag mesh according to claim 2, characterized in that: before step S3, the calking portion is woven to interlace the first warp fibers and the weft fibers up and down to determine the looping direction.
4. The molding method for an airbag mesh according to claim 3, characterized in that: in steps S2 and S4, the advancing speed of the first and second warp fibers is decreased and/or the conveying speed of the weft fibers is increased.
5. The molding method for an airbag mesh according to claim 4, characterized in that: in step S5, the weft fibers in the second dense part are pushed in the direction of the first dense part by the reed plate.
6. The molding method for an airbag mesh according to claim 1, characterized in that: the second warp fiber unit includes at least two second warp fibers twisted with each other and forming twist holes through which the weft fibers pass in steps S1, S2, S4, S6.
7. The molding method for an airbag mesh according to claim 1, characterized in that: the second warp stop cells comprise individual second warp fibers, and the weft fibers are interwoven with the second warp fibers in steps S1, S2, S4, S6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210832605.1A CN115074888A (en) | 2022-07-14 | 2022-07-14 | Forming method for safety air bag mesh cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210832605.1A CN115074888A (en) | 2022-07-14 | 2022-07-14 | Forming method for safety air bag mesh cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115074888A true CN115074888A (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210832605.1A Pending CN115074888A (en) | 2022-07-14 | 2022-07-14 | Forming method for safety air bag mesh cloth |
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| CN (1) | CN115074888A (en) |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1374280A (en) * | 1970-10-26 | 1974-11-20 | Fietzek C | Reinforcement fabrics for use in plastics laminates |
| WO1998000592A1 (en) * | 1996-07-02 | 1998-01-08 | Milliken Research Corporation | Low permeability airbag fabric |
| JP2004285547A (en) * | 2003-01-27 | 2004-10-14 | Asahi Kasei Fibers Corp | Three dimensional structured knitted fabric |
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| JP2007224449A (en) * | 2006-02-23 | 2007-09-06 | Hisato Sasaki | Shock-absorbing cushioning structure, and hip protector provided with the same |
| US20100075557A1 (en) * | 2008-09-19 | 2010-03-25 | J.B. Martin Company, Inc. | Woven fabric |
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| CA2894488A1 (en) * | 2013-01-11 | 2014-07-17 | Aircelle | Reinforced structural component made of composite material |
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| CN208101908U (en) * | 2017-07-31 | 2018-11-16 | 苏州圣远成汽车附件有限公司 | A kind of reinforcing mat of automobile safe airbag lid plate |
| CN109306563A (en) * | 2018-11-12 | 2019-02-05 | 上海捷英途新材料科技有限公司 | A kind of safe automobile air bag hinge screen cloth |
| CN109680389A (en) * | 2019-01-21 | 2019-04-26 | 江苏友诚数控科技有限公司 | A kind of safe automobile air bag flicks the reinforcing rib fabric weaving machine in flip lid |
| CN209079401U (en) * | 2018-09-21 | 2019-07-09 | 嘉兴市牛大科技有限公司 | A kind of screen cloth for fascia air bag frame |
| CN210502594U (en) * | 2019-08-27 | 2020-05-12 | 嘉兴市牛大科技有限公司 | Mesh for safety airbag frame area of automobile instrument panel |
| CN112941694A (en) * | 2021-03-29 | 2021-06-11 | 嘉兴市牛大科技有限公司 | Mesh cloth for safety airbag |
| CN216284601U (en) * | 2021-09-25 | 2022-04-12 | 嘉兴市牛大科技有限公司 | Clamp structure in mesh tension detection equipment |
-
2022
- 2022-07-14 CN CN202210832605.1A patent/CN115074888A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1374280A (en) * | 1970-10-26 | 1974-11-20 | Fietzek C | Reinforcement fabrics for use in plastics laminates |
| WO1998000592A1 (en) * | 1996-07-02 | 1998-01-08 | Milliken Research Corporation | Low permeability airbag fabric |
| JP2004285547A (en) * | 2003-01-27 | 2004-10-14 | Asahi Kasei Fibers Corp | Three dimensional structured knitted fabric |
| US20050011578A1 (en) * | 2003-07-17 | 2005-01-20 | Walsh Robert V. | Bias-woven side curtain airbag |
| JP2007224449A (en) * | 2006-02-23 | 2007-09-06 | Hisato Sasaki | Shock-absorbing cushioning structure, and hip protector provided with the same |
| US20100075557A1 (en) * | 2008-09-19 | 2010-03-25 | J.B. Martin Company, Inc. | Woven fabric |
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| CN209079401U (en) * | 2018-09-21 | 2019-07-09 | 嘉兴市牛大科技有限公司 | A kind of screen cloth for fascia air bag frame |
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| CN109680389A (en) * | 2019-01-21 | 2019-04-26 | 江苏友诚数控科技有限公司 | A kind of safe automobile air bag flicks the reinforcing rib fabric weaving machine in flip lid |
| CN210502594U (en) * | 2019-08-27 | 2020-05-12 | 嘉兴市牛大科技有限公司 | Mesh for safety airbag frame area of automobile instrument panel |
| CN112941694A (en) * | 2021-03-29 | 2021-06-11 | 嘉兴市牛大科技有限公司 | Mesh cloth for safety airbag |
| CN216284601U (en) * | 2021-09-25 | 2022-04-12 | 嘉兴市牛大科技有限公司 | Clamp structure in mesh tension detection equipment |
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