CN103924368A - Knitted Fabric Base Material Formation Method And Knitted Fabric Base Material - Google Patents
Knitted Fabric Base Material Formation Method And Knitted Fabric Base Material Download PDFInfo
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- CN103924368A CN103924368A CN201410012585.9A CN201410012585A CN103924368A CN 103924368 A CN103924368 A CN 103924368A CN 201410012585 A CN201410012585 A CN 201410012585A CN 103924368 A CN103924368 A CN 103924368A
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- knitted fabric
- base material
- yarn
- fabric base
- block pattern
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B7/00—Flat-bed knitting machines with independently-movable needles
- D04B7/14—Flat-bed knitting machines with independently-movable needles with provision for incorporating internal threads in laid-in fabrics
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/102—Patterned fabrics or articles with stitch pattern
- D04B1/108—Gussets, e.g. pouches or heel or toe portions
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- 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
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/03—Shape features
- D10B2403/033—Three dimensional fabric, e.g. forming or comprising cavities in or protrusions from the basic planar configuration, or deviations from the cylindrical shape as generally imposed by the fabric forming process
- D10B2403/0332—Three dimensional fabric, e.g. forming or comprising cavities in or protrusions from the basic planar configuration, or deviations from the cylindrical shape as generally imposed by the fabric forming process with gussets folding into three dimensional shape, e.g. seat covers
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Of Fabric (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a knitted fabric base material formation method and a knitted fabric base material. The knitted fabric base material has a complicated shape, and is formed by intersecting yarns composed of reinforcing fibers on the whole base material. Corresponding to a basic block pattern 100 based on the shape of a knitted fabric which should be knitted on a flat knitting machine, the embedded yarns (70) composed of reinforcing fibers are inserted along a knitting width direction while a base knitted fabric part is knitted by stocking yarns 60, so that a first knitted fabric 10a is formed. In a common basic block pattern, and corresponding to the basic block pattern 100 in different direction with the first knitted fabric, the embedded yarns (70) composed of reinforcing fibers are inserted along the knitting width direction while the base knitted fabric part is knitted by stocking yarns 60, so that a second knitted fabric 10b is formed. The first knitted fabric 10a and the second knitted fabric 10 b are overlapped with consistent shapes.
Description
Technical field
The yarn crossovers that the present invention relates to be formed by reinforcing fiber and the knitted fabric base material that configures on the whole at base material form method and knitted fabric base material.Particularly relate to the formation method of the knitted fabric base material of complicated shape.
Background technology
As the fiber base material of fiber-reinforced plastic (FRP), the raw material of shellproof-anti-land heart, utilize the knitted fabric base material that has used reinforcing fiber.As the braid method of the yarn being formed by reinforcing fiber knitted fabric intersected with each other, the technology that has patent documentation 1 to record.In patent documentation 1, disclose and used straight-bar machines to utilize stocking yarn by each layer of the warp thread being formed by reinforcing fiber and the weft yarn multi-layer braided structures body being combined into (knitted fabric base material).This knitted fabric base material weaves as follows: warps parallel is configured to many and supply with from top to the tooth mouth of straight-bar machines, and weft yarn and stocking yarn are supplied with by the thread-carrier of straight-bar machines, utilize stocking yarn form knitted fabric and make warp thread and weft yarn combination.
[formerly technical literature]
[patent documentation]
[patent documentation 1] Japanese Unexamined Patent Application Publication 2000-501792 communique
Summary of the invention
As knitted fabric base material, not only expect rectangular-shaped knitted fabric base material, also expect the knitted fabric base material of various shapes.In order to form the knitted fabric base material of desired shape, can enumerate the situation of the position of turning back of weft yarn and stocking yarn change thread-carrier.The knitted fabric base material of patent documentation 1 is fixed and makes warps parallel configure the state of many and weave.Thereby about the shape of knitted fabric base material, even if change the position of turning back of weft yarn and stocking yarn, warp thread is also defined in along the configuration of the direction of tooth mouth, forms and is only arranged with warp thread and the non-existent region of knitted fabric.In order to make this knitted fabric base material become desired shape, need to be by the post processing of warp cut-remove.
The present invention foundes in view of the above problems, one of its object be to provide a kind of yarn crossovers being formed by reinforcing fiber and the knitted fabric base material that configures on the whole at base material form method.Another object of the present invention is to provide a kind of knitted fabric base material that the yarn being made up of reinforcing fiber is configured under crossing condition and is formed as the method for arbitrary shape.In addition, another object of the present invention is to provide a kind of knitted fabric base material of applying the formation method of knitted fabric base material of the present invention and form.
The formation method of knitted fabric base material of the present invention is to use straight-bar machines to form the method for knitted fabric base material, comprises following operation α～operation γ.
[operation α] ... corresponding to the basic block pattern of shape that becomes the knitted fabric that utilize cross machine knitting, make the yarn of inlaying being formed by reinforcing fiber insert and utilize stocking yarn braiding basal knitted fabric portion simultaneously along knitting width direction, thereby make the first knitted fabric moulding.
[operation β] ... in described block pattern, the block pattern of different directions when being made as from the braiding of operation α, make the yarn of inlaying being formed by reinforcing fiber insert and utilize stocking yarn braiding basal knitted fabric portion simultaneously along knitting width direction, thereby make the second knitted fabric moulding.
[operation γ] ... make described the first knitted fabric overlapping in the consistent mode of mutual shape with the second knitted fabric.
As a mode of the formation method of knitted fabric base material of the present invention, can enumerate following mode: in described operation α and described operation β, weave at least a portion of basal knitted fabric portion in the upper different mode of stringer direction (longitudinal direction of knitted fabric) with the coil number of knitting width direction.As the concrete braid method of coil number that changes knitting width direction, can enumerate at least one of the braiding that utilizes widening, narrows and turn back.
Knitted fabric base material of the present invention is the knitted fabric base material being made up of multiple knitted fabrics.Described each knitted fabric possess the stocking yarn of braiding basal knitted fabric portion and along knitting width direction be inserted into described basal knitted fabric portion and formed by reinforcing fiber inlay yarn.Different mode is overlapping mutually with the alignment direction of inlaying yarn at least 2 knitted fabrics that form described knitted fabric base material.
As a mode of knitted fabric base material of the present invention, can enumerate following mode: described in inlay that yarn possesses line part and turn back and the return portion that is connected with next line part from this line part in the knitting width direction end of described knitted fabric.
As a mode of knitted fabric base material of the present invention, can enumerate following mode: described knitted fabric possesses the coil number of knitting width direction in the different region of stringer direction at least a portion of this knitted fabric.
Fiber-reinforced plastic of the present invention possesses the mother metal being made up of resin and the fiber base material that described mother metal is strengthened, and described fiber base material is knitted fabric base material of the present invention.
[invention effect]
The formation method of knitted fabric base material of the present invention, by using a common block pattern, can easily weave same shape and inlay simultaneously mutually different multiple knitted fabrics of alignment direction of yarn.Only, by making these knitted fabrics overlapping in the consistent mode of mutual shape, just can easily obtain inlaying the alignment direction different knitted fabric base material mutually of yarn, efficiency is high.Because the block pattern of each knitted fabric is common, even the therefore knitted fabric base material of complicated shape inserts along knitting width direction by make to inlay yarn corresponding to block pattern, also can make on the whole to inlay yarn crossovers at knitted fabric base material.Become the mode of desired alignment direction to inlay yarn on knitted fabric base material, set the angle of weave of block pattern in the time of the braiding of each knitted fabric, the free degree of alignment direction of therefore inlaying yarn is high.In addition, owing to using common block pattern, each knitted fabric is carried out to knitting and forming, can easily obtain the knitted fabric base material of complicated shape.About each knitted fabric, reinforcing fiber is only inserted along knitting width direction as inlaying yarn, therefore in the stringer direction of knitted fabric, produce and extend.Therefore, each knitted fabric has flexibility, therefore easily makes each knitted fabric overlapping.
At least a portion that weaves basal knitted fabric portion by the different mode in stringer direction of the coil number with knitting width direction, can easily be formed as arbitrary shape by each knitted fabric.Particularly in stringer direction, by carrying out widening in knitted fabric part, the braiding of narrowing, turn back etc. and making knit fabric three-dimensionally.The formation method of knitted fabric base material of the present invention is used common block pattern and weaves each knitted fabric, even the therefore knitted fabric base material of three-dimensional shape, by making the knitted fabric corresponding with block pattern overlapping, also can make on the whole to inlay yarn crossovers at knitted fabric base material.
Knitted fabric base material of the present invention configures in the mutual different mode of the alignment direction of inlaying yarn being made up of reinforcing fiber, is therefore high strength.Knitted fabric base material of the present invention possesses by each knitted fabric the yarn of inlaying, and can be at the knitting width direction configuration reinforcing fiber of each knitted fabric.Dispose along knitting width direction that to inlay each knitted fabric of yarn overlapping in the consistent mode of mutual shape, inlay on the whole yarn crossovers at knitted fabric base material thus, become equally on the whole high strength at knitted fabric base material.In addition, even on the knitted fabric base material of complicated shape, also can be formed as on the whole inlaying at knitted fabric base material the state of yarn crossovers.
Described inlay yarn by exist by line part and return portion a succession of the region that forms, and become more high-intensity knitted fabric base material.
Coil number by having a knitting width direction at least a portion of described knitted fabric different region in stringer direction, each knitted fabric becomes arbitrary shape.Particularly in stringer direction, by carrying out widening in knitted fabric part, the braiding of narrowing, turn back etc. and this knitted fabric becomes three-dimensional shape.Even if knitted fabric base material of the present invention is complicated three-dimensional shape, inlay on the whole yarn at knitted fabric base material and also intersect, be therefore high strength.Particularly also can obtain inlaying on large area yarn halfway not disjunction form the knitted fabric base material into a series of three-dimensional shape.
About fiber-reinforced plastic of the present invention, the easy plan view shapes such as rectangle are utilized certainly needless to say, even plan view shape arbitrarily, three-dimensional shape beyond rectangle, also substantially same on the whole at knitted fabric base material is high-intensity knitted fabric base material of the present invention, is therefore high strength on the whole at fiber-reinforced plastic.
Brief description of the drawings
In Fig. 1, (A) being the skeleton diagram of the knitted fabric base material shown in embodiment 1, is (B) figure representing corresponding to the pattern of the knitted fabric base material of (A).
In Fig. 2, (A) being the skeleton diagram of the knitted fabric base material shown in embodiment 2, is (B) figure representing corresponding to the pattern of the knitted fabric base material of (A).
In Fig. 3, (A) being the skeleton diagram of the knitted fabric base material shown in embodiment 3, is (B) figure representing corresponding to the pattern of the knitted fabric base material of (A).
In Fig. 4, (A) being the skeleton diagram of the knitted fabric base material shown in embodiment 4, is (B) figure representing corresponding to the pattern of the knitted fabric base material of (A).
Detailed description of the invention
< embodiment 1>
Below, knitted fabric base material of the present invention and forming method thereof is described.Knitted fabric base material uses straight-bar machines as described later and forms, but first the formation of knitted fabric base material is described, and then, the formation method of knitted fabric base material is described.The knitted fabric base material 1 of the present embodiment shown in Fig. 1 is made up of 2 knitted fabric 10a, 10b.Each knitted fabric 10a, 10b possess form the stocking yarn 60 of basal knitted fabric portion and be inserted into basal knitted fabric portion and formed by reinforcing fiber inlay yarn 70.One of feature of the present invention is, different mode is overlapping mutually with the alignment direction of inlaying yarn 70 for knitted fabric 10a, 10b.
[knitted fabric base material]
Knitted fabric base material 1, as shown in Fig. 1 (A), is the plan view shape of isosceles trapezoid, possesses the weft yarn 71 and the warp thread 72 that are made up of reinforcing fiber.Weft yarn 71 and warp thread 72 are orthogonal.Knitted fabric base material 1 is as shown in Fig. 1 (B), and 2 knitted fabric 10a, 10b that form are respectively so that the consistent mode of mutual shape is overlapping.
(knitted fabric)
In knitted fabric 10a, 10b, inlay yarn 70 and be inserted into the basal knitted fabric portion being formed by stocking yarn 60.The shape of each knitted fabric 10a, 10b is identical, and the alignment direction of inlaying yarn 70 differs 90 °.Herein, establish the weft yarn 71 that yarn 70 is knitted fabric base material 1 of inlaying of knitted fabric 10a, establish the warp thread 72 that yarn 70 is knitted fabric base material 1 of inlaying of knitted fabric 10b.
Stocking yarn 60 can utilize reinforcing fiber, nonreinforcement resin fibre etc.As reinforcing fiber, can enumerate such as carbon fiber, aramid fiber, glass fibre, ultra-high molecular weight polyethylene (concrete example: Dyneema: registration mark) etc.As nonreinforcement resin fibre, can enumerate the thermoset resin fibres such as thermoplastic resin fibre, unsaturated polyester ester fiber, phenolic resin fiber, epoxy resin fiber such as such as nylon resin fiber, polyvinyl resin fiber, mylar fiber, acrylic resin fiber, polyether-ether-ketone resin fiber, polyether ketone resin fiber.In addition, can also utilize the metallic high-strength yarn of bag.As metal material, can enumerate the yarn of stainless steel, yarn, the yarn of titanium alloys etc. of aluminium alloy system.In the case of knitted fabric base material 1 of the present invention is used in the base material of FRP, by using thermoplastic resin fibre, and utilize the heat melting that is subject in the manufacturing process of FRP, do not retain stocking yarn 60 original shape and can with the resin integrated of the mother metal as FRP, so preferably.Knitted fabric base material 1 of the present invention is being utilized in the raw-material situation of shellproof-anti-land heart, the high-strength yarn that comprises reinforcing fiber, metal by use, basal knitted fabric portion also can become high strength, so preferably.
Inlay yarn 70 and formed by reinforcing fiber, can utilize such as carbon fiber, aramid fiber, glass fibre, ultra-high molecular weight polyethylene (concrete example: Dyneema: registration mark) etc.
Inlay yarn 70 as shown in the enlarged drawing of only winning knitted fabric 10a in Fig. 1 (A), in the coil that utilizes stocking yarn 60 to form, can fix by the front and back (paper is side depth side nearby) that are alternately inserted through adjacent coil.About the insertion method of inlaying yarn 70, be not limited to the method for this enlarged drawing, and can adopt other known methods.
Inlay yarn 70 as shown in the enlarged drawing of Fig. 1 (A), if utilize single yarn to form certain line part 70s, turn back with the return portion 70r on the knitting width direction end at knitted fabric, the mode that the forms next line part 70s configuration of crawling.Inlaying yarn 70 and being configured to except solely crawling, also can utilize different yarns to form each line part.For example, if the circumference of knitted fabric base material 1 is cut into desired shape, each line part becomes different yarns.
Herein, be made as 90 ° (orthogonal) by respectively inlaying the angle that yarn 71,72 forms, but by the gradient with the block pattern 100 of angle change arbitrarily, make to inlay yarn 70 and insert simultaneously basal knitted fabric portion is carried out to knitting and forming, and can become the desired angles such as 45 ° by respectively inlaying angle that yarn 71,72 forms.
Overlapping knitted fabric can be more than 2, and the alignment direction of inlaying yarn 70 at least 2 knitted fabrics is mutually different.Knitted fabric base material 1 utilizes the overlapping of knitted fabric 10a, 10b and forms, and therefore basal knitted fabric portion becomes bilayer, has thickness.The number of overlapping knitted fabric more increases, and the thickness of knitted fabric base material is also thicker.
The knitted fabric base material 1 of present embodiment is two-dimensional shapes, but the pattern that knitted fabric base material 1 is sticked is for example top 11 sides and following 12 side openings, towards the situation of the tapered tubular of top 11 front ends (skirt shape), knitted fabric base material 1 is sticked from following 12 in the mode that is wound in pattern.
The plan view shape that the pattern that is used for the knitted fabric base material 1 that weaves present embodiment is isosceles trapezoid, but also can be formed as the pattern for example being formed by multiple patches of general triangular shape, about each patch, make to inlay yarn 70 and insert the braiding of simultaneously turning back.Even if it is also different to inlay in this case, the alignment direction of yarn 70.
Block pattern 100 shown in knitted fabric base material 1 shown in Fig. 1 (A) and Fig. 1 (B) is skeleton diagram, is illustrated figure in order easily to understand the alignment direction of inlaying yarn 70 while making knitted fabric 10a, 10b overlapping.In fact,, the in the situation that of making 10b overlapping on knitted fabric 10a, while observing knitted fabric base material 1 from top, that can see knitted fabric 10b inlays yarn (warp thread 72).
[purposes]
Knitted fabric base material 1 of the present invention can suitably be used in the base material of FRP.In this situation, in knitted fabric base material 1 of the present invention, add hot compression containing resin pickup.In addition, in the stocking yarn 60 of knitted fabric base material 1, contain resin, can be by appending at 1 impregnation of knitted fabric base material or coating resin, but this appends not necessarily.In addition, knitted fabric base material 1 of the present invention can suitably be used in the raw material of shellproof-anti-land heart.
[the formation method of knitted fabric base material]
Above-mentioned knitted fabric base material 1 of the present invention uses straight-bar machines to obtain by following formation method.In the formation method of knitted fabric base material 1 of the present invention, be used as and weave multiple knitted fabric 10a, 10b at the basic common block pattern 100 of the shape of the knitted fabric of cross machine knitting.In the braiding of knitted fabric, use two needle-bars (can be also four needle-bars) straight-bar machines, it possess along left and right directions extend and on fore-and-aft direction mutual opposed a pair of needle-bar, can between the needle-bar of front and back, carry out the barring-on of coil, and at least one party's needle-bar can be traversing.Substantially mainly use 2 either party in needle-bar, just can weave each knitted fabric 10a, 10b.
(block pattern)
The block pattern 100 that present embodiment is used is as shown in Fig. 1 (B)-(a), for by top 111, following 112 and the plan view shape of the isosceles trapezoid that forms of side 113.The knitted fabric base material 1 of present embodiment 1 is two-dimensional shapes, and therefore the shape of block pattern 100 directly becomes the shape of knitted fabric base material 1., the top 111 of block pattern 100, following 112, side 113 are corresponding to the top 11 of knitted fabric base material 1, following 12, side 13.If the direction of the block pattern 100 shown in Fig. 1 (B)-(a) is 0 °.
(operation α)
Corresponding to the block pattern 100 of the shape shown in Fig. 1 (B)-(a), make to inlay yarn 70 and insert and utilize stocking yarn 60 to weave basal knitted fabric portion simultaneously, thus making knit fabric 10a.Multiple horizontal lines in figure are the direction of insertion of inlaying yarn 70.
In the braid method of knitted fabric 10a, first on a side needle-bar, utilize stocking yarn 60 to carry out 1 row braiding.Then, make the every barring-on alternately of coil being woven into arrive opposed the opposing party's needle-bar, make to inlay yarn 70 and insert between two needle-bars.And, make barring-on coil restore.Thus, as shown in the enlarged drawing of Fig. 1 (A), can make to inlay yarn 70 and alternately configure in the front and back of adjacent coil.By carrying out new braiding on the coil in this 1 row, can by inserted to inlay yarn 70 fixing.Block pattern 100 is isosceles trapezoid shape, and side 113 tilts, and therefore, in the time carrying out new braiding, carries out the braiding based on narrowing.Under this state, make the needle-bar of the every barring-on alternately of the coil that is newly woven into opposed the opposing party, make to inlay yarn 70 and insert between two needle-bars, make barring-on coil restore.By repeatedly carrying out this action, can be corresponding to multiple horizontal lines of the block pattern 100 shown in Fig. 1 (B)-(a) and configure and inlay yarn 70.In this knitted fabric 10a, following 112 become braiding initial, top 111 become braiding finish.
(operation β)
As shown in Fig. 1 (B)-(b), make block pattern 100 half-twists.Rotated the block pattern 100 of 90 ° corresponding to this, with the braid method of above-mentioned knitted fabric 10a similarly, make to inlay yarn 70 and insert and utilize stocking yarn 60 to weave basal knitted fabric portion simultaneously, thus making knit fabric 10b.Multiple horizontal lines in figure are the direction of insertion of inlaying yarn 70.Herein, although make block pattern 100 half-twists, the anglec of rotation of this block pattern 100 can be set arbitrarily.In this knitted fabric 10b, it is initial that the right corner portion of the side 113 of downside becomes braiding, and the right corner portion of the side 113 of upside becomes braiding and finishes.
(operation γ)
Make knitted fabric 10a overlapping in the consistent mode of mutual shape with knitted fabric 10b.As shown in Fig. 1 (B)-(c), the block pattern 100 that the braiding of knitted fabric 10a is used differs 90 ° with the block pattern 100 that the braiding of knitted fabric 10b is used, if therefore make two block patterns 100 overlapping, the direction of insertion of inlaying yarn 70 is orthogonal.Because the knitted fabric 10a, the 10b that make to be woven into corresponding to block pattern 100 are overlapping, in the knitted fabric base material 1 being therefore woven into, inlay yarn 70 and utilize weft yarn 71 and the orthogonal state of warp thread 72 to configure on the whole (Fig. 1 (A)) at knitted fabric base material 1.
< embodiment 2>
In embodiment 1, the braid method of the knitted fabric base material 1 of two-dimensional shapes is described.In embodiment 2, with reference to Fig. 2, the braid method of the knitted fabric base material 2 of 3D shape is described.The knitted fabric base material 2 of embodiment 2 as shown in Figure 2 (A) shows, possesses the portion of heaving 22 in the central portion bending of rectangular-shaped outer edge 21.The stocking yarn that uses about each knitted fabric 20a, 20b, inlay yarn, identical with embodiment 1, therefore following the braid method of the knitted fabric base material 2 that has used block pattern 200 is described.
(block pattern)
Block pattern 200 as shown in Fig. 2 (B)-(a), possess the halfbody that makes the large trapezoidal and little trapezoidal shape becoming one taking little trapezoidal minor face as border the portion of heaving 222 of balanced configuration and clip this and heave the rectangular-shaped outer edge 221 that portion 222 configures up and down.This block pattern 200 is to make the knitted fabric base material 2 of 3D shape be launched into two-dimentional pattern.Therefore,, in the time weaving each knitted fabric 20a, 20b corresponding to this block pattern 200, in Fig. 2 (B), region indicated by the arrow connects while weaves.This connection is the knitted fabric part that is provided for forming three-dimensional portion in row direction or stringer direction, and each knitted fabric part is connected.The outer edge 221 of block pattern 200, heave portion 222 corresponding to the outer edge 21 of knitted fabric base material 2, heave portion 22.If the direction of the block pattern 200 shown in Fig. 2 (B)-(a) is 0 °.
First, corresponding to the block pattern 200 shown in Fig. 2 (B)-(a), make to inlay yarn 70 and insert and utilize stocking yarn 60 to weave basal knitted fabric portion simultaneously, thus making knit fabric 20a(operation α).In the braiding of knitted fabric 20a, corresponding to block pattern 200, to a side outer edge 221(paper downside) carry out reciprocal knitting, utilize and heave the coil number that portion 222 changes knitting width direction and turn back simultaneously, the then outer edge 221(paper upside to the opposing party) carry out reciprocal knitting.Now, corresponding to the shape of the portion of heaving 222, weave a side outer edge 221(paper downside) final row finish after, the coil that makes a part for knitted fabric is hooked in knitting needle and becomes the state that braiding is stopped, and changes and turns back position and weave simultaneously in the mode that knitting width narrows until heave the central authorities of portion 222.Then,, including being hooked in the coil of the knitting needle that becomes halted state, become the braiding of turning back of large mode with knitting width.In this knitted fabric 20a, the outer edge 221 of paper downside become below braiding initial, the top of the outer edge 221 of paper upside become braiding finish.
Then,, as shown in Fig. 2 (B)-(b), make block pattern 200 half-twists.Corresponding to the block pattern 200 of this half-twist, make to inlay yarn 70 and insert and utilize stocking yarn 60 to weave basal knitted fabric portion simultaneously, thus making knit fabric 20b(operation β).In the braiding of knitted fabric 20b, corresponding to block pattern 200, from a side (paper downside) of two outer edges 221, weave continuously, carry out interior widening at the braiding position of the portion of heaving 222, braiding simultaneously heaves portion 222 for the knitted fabric parts of 221 three-dimensional portions of formation in two outer edges.Weave until after heaving the central authorities of portion 222, corresponding to the shape of the portion of heaving 222, utilize overlapped stitches (narrowing) to weave in the portion of heaving 222, utilize narrowing to dwindle mutual distance in two outer edges 221 simultaneously, each knitted fabric part is connected.In this knitted fabric 20b, it is initial that the side that is positioned at the paper downside of two outer edges 221 becomes braiding, and the side of the two opposed paper upsides in outer edge 221 becomes braiding and finishes.
And, make knitted fabric 20a with knitted fabric 20b with the consistent mode of mutual shape overlapping (operation γ).Now, the shape of the portion of heaving 22 of each knitted fabric 20a, 20b is also consistent and overlapping.In the knitted fabric base material 2 forming, inlay yarn 70 and utilize weft yarn 71 and the orthogonal state of warp thread 72 to configure on the whole (Fig. 2 (A)) at knitted fabric base material 2.Heave portion 22 and also become the orthogonal state of yarn 70 of inlaying.
< embodiment 3>
In embodiment 3, with reference to Fig. 3, the formation method of the knitted fabric base material 3 of other modes of 3D shape is described.The knitted fabric base material 3 of embodiment 3 as shown in Fig. 3 (A), a part (outer edge 31) for rectangular-shaped base material possess the contraction flow region 32 of circular, from the inner edge of this contraction flow region 32 start continuously and taking with the orthogonal direction in outer edge 31 as axial cylindrical portion 33.About cylindrical portion 33, more leaving contraction flow region 32 more becomes path, upper and lower side opening.The stocking yarn that uses about each knitted fabric 30a, 30b, inlay yarn, identical with embodiment 1, therefore following the formation method of the knitted fabric base material 3 that has used block pattern 300 is described.
(block pattern)
Block pattern 300 as shown in Fig. 3 (B)-(a), possess make 3 little trapezoidal respectively with grow the mode alignment arrangements of aliging on straight line on limit 2 cylindrical portion 333, clip this cylindrical portion 333 and the outer edge 331 of the essentially rectangular shape of configuration, on this outer edge 331 at the contraction flow region 332 forming corresponding to the long limit of cylindrical portion 333 with the opposed lateral margin of cylindrical portion 333.This block pattern 300 is to make the knitted fabric base material 3 of 3D shape be launched into two-dimentional pattern.Therefore,, in the time weaving each knitted fabric 30a, 30b corresponding to this block pattern 300, in Fig. 3 (B), region as shown by arrows connects while weaves.This connection is same with embodiment 2, in row direction or stringer direction, is provided for forming the knitted fabric part of three-dimensional portion, and each knitted fabric part is connected.The outer edge 331 of block pattern 300, contraction flow region 332, cylindrical portion 333 are corresponding to outer edge 31, contraction flow region 32, the cylindrical portion 33 of knitted fabric base material 3.If the direction of the block pattern 300 shown in Fig. 3 (B)-(a) is 0 °.
The braiding of knitted fabric 30a is corresponding to the block pattern 300 shown in Fig. 3 (B)-(a), makes to inlay yarn 70 and inserts and utilize stocking yarn 60 to weave basal knitted fabric portion simultaneously.This braiding order is, first, at a side outer edge 331(paper downside) the rectangular-shaped part of the extended line formation that utilizes the border between the middle body of contraction flow region 332 is carried out to reciprocal knitting, then, braiding is as the right-angled trapezium portion remainder of outer edge 331, taking the hypotenuse of contraction flow region 332 as the left and right either party of leg, and then to the braiding of turning back respectively of the opposing party's right-angled trapezium portion.And, make the coil of the stringer direction terminal of outer edge 331 classify halted state as, continue with contraction flow region 332 and utilize the known narrowing knitted cylindrical 333(of portion paper downside towards little trapezoidal short brink).In the time forming the each little trapezoidal braiding of cylindrical portion 333, each little trapezoidal joint is woven simultaneously, and making the knitting needle of the coil hook of the knitting width direction both ends of cylindrical portion 333 (the little trapezoidal left side hypotenuse in paper left side and the little trapezoidal right side hypotenuse on paper right side) is halted state.Then, at another cylindrical portion 333(of arranged opposite paper upside) weave towards long side from little trapezoidal short brink.In addition, in order to make knitted fabric base material 3(Fig. 3 (A)) the upper end open of cylindrical portion 33, between the little trapezoidal minor face of the cylindrical portion 333 of arranged opposite, do not connect.Therefore, the end coil row of the cylindrical portion 333 to paper downside are implemented trim ring, carry out an end of the cylindrical portion 333 of paper upside.The cylindrical portion 333 of paper upside is the each little trapezoidal minor face of continuous weaving, to under the state of each little trapezoidal joint, carry out known widening braiding, in the cylindrical portion 333 of paper downside, also comprising being hooked in the coil of the knitting needle in halted state and changing the position of turning back and weave simultaneously.Be connected in the knitting needle of the halted state of the outer edge 331 of paper downside, taking up one's knitting taking the inclined-plane of the contraction flow region 332 of paper upside is the left and right either party's of leg right-angled trapezium portion, and the braiding of turning back is connected with the final coil of the cylindrical portion 333 of paper upside simultaneously.And then also comprise respectively the coil that is hooked in the knitting needle in the halted state braiding of turning back in the outer edge 331 of paper downside in the opposing party's right-angled trapezium portion, be connected with the final coil of the cylindrical portion 333 of paper upside simultaneously.And, finally the remaining rectangular-shaped part of outer edge 331 is carried out to reciprocal knitting.Inlay yarn 70 and also can change at the boundary member of a pair of cylindrical portion 333 other the yarn of inlaying.About knitted fabric 30a, the outer edge 331 of paper downside become below braiding initial, the top of the outer edge 331 of paper upside become braiding finish.
About knitted fabric 30b, corresponding to the block pattern 300 shown in Fig. 3 (B)-(b), since one distolateral (paper downside) continuous weaving of two outer edges 331, carry out interior widening at the braiding position of cylindrical portion 333 simultaneously in 331 of two outer edges knitted cylindrical portion 333.In addition, in order to make knitted fabric base material 3(Fig. 3 (A)) the upper end open of cylindrical portion 33, between the little trapezoidal minor face of the cylindrical portion 333 of arranged opposite, do not connect.Weave until after the central authorities of cylindrical portion 333, the distance of two outer edges 331 is dwindled by narrowing, each knitted fabric part is connected.About knitted fabric 30b, it is initial that the side that is positioned at the paper downside of two outer edges 331 becomes braiding, and the side of the paper upside of two outer edges 331 becomes braiding and finishes.
Herein, knitted fabric base material 3(Fig. 3 (A)) in, the upper end open of cylindrical portion 33, but also can be formed as remaining silent cover shape.In this situation, utilize not shown lid to connect about the little trapezoidal minor face of 300,2 cylindrical portion 333 of block pattern.
In embodiment 3, also, about knitted fabric base material 3, make knitted fabric 30a, 30b overlapping in the consistent mode of mutual shape, therefore the shape of cylindrical portion 33 is also consistent and overlapping.Therefore,, in knitted fabric base material 30, inlay yarn 70 and utilize weft yarn 71 and the orthogonal state of warp thread 72 to configure on the whole (Fig. 3 (A)) at knitted fabric base material 3.Cylindrical portion 33 also becomes the orthogonal state of yarn 70 of inlaying.
< embodiment 4>
In embodiment 4, with reference to Fig. 4, the method that uses the block pattern different from embodiment 3 400 to form the knitted fabric base material 4 of the shape (possess outer edge 41, contraction flow region 42, cylindrical portion 43) identical with embodiment 3 is described.The stocking yarn that uses about each knitted fabric 40a, 40b, to inlay yarn identical with embodiment 1, therefore following the formation method of the knitted fabric base material 4 that has used block pattern 300 described.
(block pattern)
Block pattern 400 as shown in Fig. 4 (B)-(a), possess make 3 little trapezoidal respectively with grow the contraction flow region 442 of the mode alignment arrangements that limit and minor face align respectively on straight line, with the long side of this contraction flow region 442 continuously configuration outer edge 441, with the short brink cylindrical portion 443 of configuration continuously of contraction flow region 442.This block pattern 400 is to make the knitted fabric base material 4 of 3D shape expand into two-dimentional pattern.In Fig. 4 (B), block pattern 400, with two-dimensional diagram, therefore only illustrates the first half of actual block pattern 400., the latter half of first half and same shape is present in paper depth side.In the time weaving each knitted fabric 40a, 40b corresponding to this block pattern 400, in Fig. 4 (B), region indicated by the arrow connects while weaves.This connection is identical with embodiment 2, in row direction or stringer direction, is provided for forming the knitted fabric part of three-dimensional portion, and each knitted fabric part is connected.The outer edge 441 of block pattern 400, contraction flow region 442, cylindrical portion 443 are corresponding to outer edge 41, contraction flow region 42, the cylindrical portion 43 of knitted fabric base material 4.If the direction of the block pattern 400 shown in Fig. 4 (B)-(a) is 0 °.
The braiding of knitted fabric 40a is corresponding to the block pattern 400 shown in Fig. 4 (B)-(a), will inlay yarn 70 and insert and utilize stocking yarn 60 to weave basal knitted fabric portion simultaneously.This braiding order is first, individually reciprocal knitting to be carried out in each outer edge 441 of first half and latter half respectively at front needle-bar and rear needle-bar.Now, inlay yarn 70 and be inserted into individually front and back needle-bar.The coil column of the both sides that are positioned at contraction flow region 442 and the coil column of opposed needle-bar in the coil column of the stringer direction terminal of each outer edge 441 are bonded with each other.Then, narrow and utilize front needle-bar and rear needle-bar by the tubular of the contraction flow region of first half and latter half 442 integrated by weaving simultaneously.Tubular knitted continuously with this, utilize front needle-bar and rear needle-bar by the tubular of the cylindrical portion of first half and latter half 443 integrated by weaving.When tubular knitted, inlay yarn 70 and also 70 two, the yarn of respectively inlaying using when the braiding of each outer edge 441 can be inserted together, also can only a side the yarn 70 of inlaying be inserted.In knitted fabric 40a, the outer edge 441 of first half and latter half become below braiding initial, the opening edge of cylindrical portion 443 become braiding finish.
In knitted fabric 40b, corresponding to the block pattern 400 shown in Fig. 4 (B)-(b), respectively by each outer edge 441, contraction flow region 442, the cylindrical portion 443 of front needle-bar and rear needle-bar braiding first half and latter half.In the end (paper left side) of contraction flow region 442 sides of each outer edge 441, the part (being positioned at the part of the upper and lower sides of contraction flow region 442) not being connected with contraction flow region 442 is utilized front needle-bar and rear needle-bar continuous weaving.The part being connected with the contraction flow region 442 of each outer edge 441 at front needle-bar and rear needle-bar separately by outer edge 441 and contraction flow region 442 continuous weaving.And, in the end (paper left side) of cylindrical portion 443 sides of contraction flow region 442, contraction flow region 442 is connected simultaneously and is woven with cylindrical portion 443.About contraction flow region 442, little trapezoidal corresponding to 3, the coil that repeatedly makes a part for knitted fabric is hooked in knitting needle and makes braiding become halted state to change the step that the position of turning back weaves simultaneously and also comprise and be hooked in the coil of the knitting needle that becomes halted state and change the step that the position of turning back weaves, lower adjacent little trapezoidal being connected to each other on paper.About cylindrical portion 443, initial as braiding taking the side of paper downside, weave separately at front needle-bar and rear needle-bar, engage with contraction flow region 442 in the end (paper right side) of contraction flow region 442 sides simultaneously.In the braiding end of the braiding initial sum paper upside of cylindrical portion 443, will utilize the knitted fabric of front needle-bar and the braiding of rear needle-bar to engage.One end (paper right side) of the row direction of contraction flow region 442 is by being connected with outer edge 441 continuous weaving, and the other end (paper left side) is by engaging simultaneously and weave and be connected with cylindrical portion 443.About knitted fabric 40b, it is initial that the side that is positioned at paper downside of the outer edge 441 of first half and latter half becomes braiding, and the side of the paper upside of outer edge 441 becomes braiding and finishes.
Herein, in knitted fabric base material 4, the upper end open of cylindrical portion 43, but also can be formed as remaining silent cover shape.In this situation, about block pattern 400, the lid (not shown) that each cylindrical portion 443 of first half and latter half is connected is formed at the either party of first half and latter half.Or, forming respectively each the lid that is divided into first half and latter half, each lid is engaged with each other end coil row separately.
Embodiment 4 also, about knitted fabric base material 4, makes knitted fabric 40a, 40b overlapping in the consistent mode of mutual shape, and therefore the shape of cylindrical portion 43 is also consistent and overlapping.Therefore,, about knitted fabric base material 40, inlay yarn 70 and utilize weft yarn 71 and the orthogonal state of warp thread 72 to configure on the whole (Fig. 4 (A)) at knitted fabric base material 4.Cylindrical portion 43 also becomes the orthogonal state of yarn 70 of inlaying.
In addition, the present invention is not limited to above-mentioned embodiment, without departing from the spirit and scope of the invention suitable change and implementing.
[label declaration]
1,2,3,4 knitted fabric base materials
10a, 10b, 20a, 20b, 30a, 30b, 40a, 40b knitted fabric
11 following 13 sides in top 12
Portion is heaved in 21 outer edges 22
31 outer edge 32 contraction flow region 33 cylindrical portion
41 outer edge 42 contraction flow region 43 cylindrical portion
60 stocking yarns
70 inlay yarn 71 weft yarn 72 warp thread
70s line part 70r return portion
100,200,300,400 block patterns
111 following 113 sides in top 112
Portion is heaved in 221 outer edges 222
331 outer edge 332 contraction flow region 333 cylindrical portion
441 outer edge 442 contraction flow region 443 cylindrical portion
Claims (6)
1. a formation method for knitted fabric base material, is to use straight-bar machines to form the method for knitted fabric base material, it is characterized in that, comprising:
Operation α, corresponding to the basic block pattern of shape that becomes the knitted fabric that utilize cross machine knitting, make the yarn of inlaying being formed by reinforcing fiber insert and utilize stocking yarn braiding basal knitted fabric portion simultaneously along knitting width direction, thereby make the first knitted fabric moulding;
Operation β, in described block pattern, the block pattern of different directions, makes the yarn of inlaying being made up of reinforcing fiber insert and utilize stocking yarn braiding basal knitted fabric portion simultaneously along knitting width direction, thereby makes the second knitted fabric moulding when being made as from the braiding of operation α; And
Operation γ, makes described the first knitted fabric overlapping in the consistent mode of mutual shape with the second knitted fabric.
2. the formation method of knitted fabric base material according to claim 1, is characterized in that,
In described operation α and described operation β, weave at least a portion of basal knitted fabric portion in coil number different mode in stringer direction of knitting width direction.
3. a knitted fabric base material, is the knitted fabric base material being made up of multiple knitted fabrics, it is characterized in that,
Described each knitted fabric possess the stocking yarn of braiding basal knitted fabric portion and along knitting width direction be inserted into described basal knitted fabric portion and formed by reinforcing fiber inlay yarn,
Different mode is overlapping mutually with the alignment direction of inlaying yarn at least 2 knitted fabrics that form described knitted fabric base material.
4. knitted fabric base material according to claim 3, is characterized in that,
Describedly inlay that yarn possesses line part and turn back and the return portion that is connected with next line part from this line part in the knitting width direction end of described knitted fabric.
5. according to the knitted fabric base material described in claim 3 or 4, it is characterized in that,
Described knitted fabric possesses the coil number of knitting width direction in the different region of stringer direction at least a portion of this knitted fabric.
6. a fiber-reinforced plastic, possesses the mother metal being made up of resin and the fiber base material that described mother metal is strengthened, wherein,
Described fiber base material is the knitted fabric base material described in any one in claim 3～5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-002990 | 2013-01-10 | ||
| JP2013002990A JP6084041B2 (en) | 2013-01-10 | 2013-01-10 | Knitted substrate forming method, knitted substrate, and fiber reinforced plastic |
Publications (2)
| Publication Number | Publication Date |
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| CN103924368A true CN103924368A (en) | 2014-07-16 |
| CN103924368B CN103924368B (en) | 2016-01-27 |
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| CN201410012585.9A Active CN103924368B (en) | 2013-01-10 | 2014-01-10 | The formation method of knitted fabric base material and knitted fabric base material |
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| Country | Link |
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| JP (1) | JP6084041B2 (en) |
| KR (1) | KR101523500B1 (en) |
| CN (1) | CN103924368B (en) |
| DE (1) | DE102014000153A1 (en) |
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| CN106032606A (en) * | 2015-03-17 | 2016-10-19 | 东莞市长立纺织科技有限公司 | Braiding structure of textile fabric and braiding method thereof |
| CN110485042A (en) * | 2019-08-14 | 2019-11-22 | 江南大学 | A kind of method of the knitting pattern of the three-dimensional full forming clothes of two dimension pattern conversion |
| CN110769995A (en) * | 2017-04-14 | 2020-02-07 | 法国圣戈班高性能塑胶公司 | Method for manufacturing a dry preform produced by weaving, method for manufacturing a product made of a composite material using said preform |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105463677A (en) * | 2015-12-28 | 2016-04-06 | 宝鸡金健数码针纺有限责任公司 | Production process of antistatic kitted fabric |
| JP2017218688A (en) * | 2016-06-07 | 2017-12-14 | 三菱重工業株式会社 | Reinforcing base material for composite material part, composite material part, and method for producing the same |
| CN113756000B (en) * | 2021-08-03 | 2022-11-25 | 嘉兴市蒂维时装有限公司 | Knitting method for improving full-forming stripe alternation effect and fabric thereof |
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| CN110769995A (en) * | 2017-04-14 | 2020-02-07 | 法国圣戈班高性能塑胶公司 | Method for manufacturing a dry preform produced by weaving, method for manufacturing a product made of a composite material using said preform |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2014133960A (en) | 2014-07-24 |
| CN103924368B (en) | 2016-01-27 |
| KR20140090937A (en) | 2014-07-18 |
| JP6084041B2 (en) | 2017-02-22 |
| DE102014000153A1 (en) | 2014-07-10 |
| KR101523500B1 (en) | 2015-05-28 |
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