CN106609417A - Three-dimensional knitting technology, and three-dimensional fabric - Google Patents
Three-dimensional knitting technology, and three-dimensional fabric Download PDFInfo
- Publication number
- CN106609417A CN106609417A CN201610961466.7A CN201610961466A CN106609417A CN 106609417 A CN106609417 A CN 106609417A CN 201610961466 A CN201610961466 A CN 201610961466A CN 106609417 A CN106609417 A CN 106609417A
- Authority
- CN
- China
- Prior art keywords
- crochet
- braiding
- station
- row
- braiding station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C3/00—Braiding or lacing machines
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Abstract
The invention belongs to the field of knitting technology, and more specifically relates to a three-dimensional knitting technology, and a three-dimensional fabric. The three-dimensional knitting technology is completed on a three-dimensional knitting machine; the three-dimensional knitting machine comprises knitting devices and knitting stations; a knitting matrix A with n rows and (n+1) columns is formed by the knitting devices; the knitting stations are arranged between any two adjacent knitting devices of a same row so as to obtain a n order square matrix M formed by the knitting stations; the knitting stations are driven to perform autoroatation around the axis of the knitting stations so as to drive the knitting devices to rotate around the knitting stations; and knitting is completed via controlling of the regular movement of the knitting devices. The beneficial effects of the knitting technology are that: the obtained three-dimensional fabric is an interlaced multi-layer fabric, so that if one layer of the fabric falls off, a complete structure is maintained by the other layers, and the whole performance of the fabric is not influenced, continuous production of the three-dimensional knitting technology is convenient to realize, and the three-dimensional knitting technology can be applied in preparation of ablative composite materials of manned vehicles and long-range missiles.
Description
Technical field
The invention belongs to weaving field, specifically, is related to a kind of 3 D weaving technique and three dimensional fabric.
Background technology
It is a particularly important technology for developing medium- and long-range missile that solution reenters the anti-heat problem of formula.Due to ablation material
The development and application of material, the warhead of intercontinental missile are possible to atmospheric reentry hit, manned spaceship and space shuttle
Be possible to return to ground by planned orbit.
As ablator, it is desirable to which heat of gasification is big, thermal capacity is big, and thermal insulation is good, and outwardly the function of radiations heat energy is strong.Closely
Nian Lai, has succeeded in developing many with high intensity, the fiber of high elastic modulus, such as carbon fiber, boron fibre, zirconium carbide fiber and oxygen
Change aluminum fiber, be excellent ablator with composite made by them, become aerospace craft does not break the armor.Ablation material
Material may further be used to solve the solar heat protection at the positions such as rocket motor motor spindle, casing interstage section, space shuttle nose cone, the leading edge of a wing and ask
Topic.
The reinforced fabric for being presently used for ablative composite material is mainly D braided composites, is pre- by 3 D weaving
The enhanced a kind of advanced composite material of product, with interlayer performance is good, anti-yaw damper, ablation shape are uniform, ablation end face is smooth etc.
Advantage, is highly desirable inexpensive exotic material.Wherein, require after the ablated surface of part aircraft comes off remaining compound
Reinforced fabric in material has complete fabric tissue, neither affects aircraft surface attractive in appearance, nor affects on aircraft itself
Structural behaviour, so, develop a kind of new 3 D weaving technique very necessary.
In view of this it is special to propose the present invention.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, there is provided a kind of 3 D weaving technique and three
Dimensional fabric, through fabric that the craft woven goes out when by ablation, wherein one layer of fabric removal, other layers remain to have complete
Tissue, remain in that complete interleaved order, do not interfere with the overall performance of fabric.
To solve above-mentioned technical problem, the present invention using the basic conception of technical scheme is：
A kind of 3 D weaving technique, the 3 D weaving technique are completed on three dimensional knitting machine, the three dimensional knitting machine bag
Crochet and braiding station are included, crochet is arranged in the braiding matrix A that n rows (n+1) are arranged, and it is any that the braiding station is arranged on same a line
Between two adjacent crochets, make braiding station be arranged in n rank square formations M, braiding station around drive while its axle rotation crochet around
Braiding station rotates, and the rule motion for controlling crochet completes braiding, comprises the following steps：
Step 1)：Braiding station positioned at the row of square formation M the 1st rotates, and drives the crochet of braiding station both sides around the braiding
Stand after 180 ° of rotating forward, the braiding station positioned at the row of square formation M the 2nd rotates, the crochet of braiding station both sides is driven around the braiding station
After 180 ° of reversion, such recirculation 2 times, each crochet returns to the initial position of this step, completes a partial circulating；Then, the 2nd
Row repeat above-mentioned partial circulating ... with the braiding station of the 3rd row until (n-1) is arranged and the above-mentioned partial circulating of the n-th row braiding station repetition
Afterwards, each crochet returns to the initial position of this step, re-forms the braiding matrix A that n rows (n+1) are arranged；
Step 2)：Each crochet in the braiding matrix A arranged positioned at n rows (n+1) is compiled rotating around its any one adjacent
Knit station and rotate 90 ° or 270 °, make crochet be arranged as the braiding matrix B of (n+1) row n row；
Step 3)：Rotate positioned at the braiding station of the 1st row of square formation M, the crochet of braiding station both sides is driven around the braiding
Stand after 180 ° of forward or reverse, the braiding station rotation direction of the 2nd row is with the braiding station rotation direction of the 1st row conversely, driving braiding
Stand both sides crochet around 180 ° of the braiding station rotating in same direction, after such recirculation 2 times, each crochet returns to the initial of this step
Position, completes a partial circulating；Then, the braiding station of the 2nd row and the 3rd row repeat above-mentioned partial circulating ... until (n-1) OK
After the above-mentioned partial circulating of line n braiding station repetition, each crochet returns to the initial position of this step, (n+1) the row n for re-forming
The braiding matrix B of row；
Step 4)：Step 3) obtain (n+1) row n row braiding matrix B in each crochet according to step 2) it is identical
Path, rotation direction retrieves step 1 conversely, the anglec of rotation is identical) the braiding matrix that arranges of the n rows (n+1) of initial position
A, completes a circulation；
Step 5)：Step 1 is repeated several times)-step 4), complete braiding.
The step 2) in, each crochet is rotated rotating around its any one adjacent braiding station, and rotation direction is rotating forward
Or reversion.
The step 2) in, it is m by each the braiding station element number in square formation MI, j, by each braiding of braiding matrix A
Device element number is a, and wherein i, j are positive integer, in square formation M, as i=j, mI, jDrive aI, jAnd aI, j+1Around mI, jRotate；When
During i ＞ j, mI, jA is driven onlyI, jAround mI, jRotate；As i ＜ j, mI, jA is driven onlyI, j+1Around mI, jRotate.
The step 1) in, forward direction is clockwise or is counterclockwise.
Using three dimensional fabric prepared by above-mentioned any one 3 D weaving technique.
After above-mentioned technical proposal, the present invention is had the advantages that compared with prior art：Due to using above-mentioned
Crochet is lined up n rows (n+1) row braiding matrix A by weaving, drives the regular fortune of crochet by weaving the rotation at station
It is dynamic, yarn is specially carried on crochet, crochet motion drives yarn movement to complete braiding, and the yarn per a line is one group,
Per the yarn in group according to step 1) woven, n-layer fabric is formed after the completion of the step, the flower knot of fabric is similar to plait, it
Afterwards according to step 2) yarn changing position forms (n+1) row n row braiding matrix B, and the process yarn interlocks, then with the yarn of every string
Line is one group, per the yarn in group according to step 3) woven, the process make fabric with step 1) thread layers that formed hang down
Nogata extends upward n-layer, then by yarn according to step 4) playback, so repeat down, the fabric of formation is that transverse and longitudinal replaces
Multilayer fabric, therefore one layer of fabric removal wherein, other layers of reservation still have complete tissue, do not affect the whole of fabric
Body performance, and the technique easily realizes continuous prodution, and the ablation for being applied to reenter formula aerospace craft, long-range missile etc. is multiple
The preparation of condensation material.
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
Description of the drawings
A part of the accompanying drawing as the present invention, for providing further understanding of the invention, the present invention's is schematic
Embodiment and its illustrate for explaining the present invention, but do not constitute inappropriate limitation of the present invention.Obviously, drawings in the following description
It is only some embodiments, to those skilled in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is two weaving schematic flow sheet of the embodiment of the present invention；
Fig. 2 is four weaving schematic flow sheet of the embodiment of the present invention；
Fig. 3 is the weaving flow process that the row braiding of 3 row 4 matrix A is changed into the row braiding matrix B of 4 row 3 in the embodiment of the present invention five
Schematic diagram；
In Fig. 4 embodiment of the present invention five 4 row 3 row braiding matrix B be changed into 3 row 4 row braiding matrix A weaving flow process show
It is intended to；
Fig. 5 makes fabric schematic diagram prepared by the weaving of the embodiment of the present invention one.
In figure：1st, braiding station；2nd, crochet.
It should be noted that these accompanying drawings and word description are not intended as the design model for limiting the present invention by any way
Enclose, but be that those skilled in the art illustrate idea of the invention by reference to specific embodiment.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in embodiment is clearly and completely described, following examples be used for illustrate the present invention, but
It is not limited to the scope of the present invention.
Embodiment one：
A kind of 3 D weaving technique, the 3 D weaving technique are completed on three dimensional knitting machine, the three dimensional knitting machine bag
Crochet and braiding station are included, crochet is arranged in the braiding matrix A that n rows (n+1) are arranged, and it is any that the braiding station is arranged on same a line
Between two adjacent crochets, make braiding station be arranged in n rank square formations M, braiding station around drive while its axle rotation crochet around
Braiding station rotates, and the rule motion for controlling crochet completes braiding, it is characterised in that comprise the following steps：
Step 1)：Braiding station positioned at the row of square formation M the 1st rotates, and drives the crochet of braiding station both sides around the braiding
Stand after 180 ° of rotating forward, the braiding station positioned at the row of square formation M the 2nd rotates, the crochet of braiding station both sides is driven around the braiding station
After 180 ° of reversion, such recirculation 2 times, each crochet returns to the initial position of this step, completes a partial circulating；Then, the 2nd
Row repeat above-mentioned partial circulating ... with the braiding station of the 3rd row until (n-1) is arranged and the above-mentioned partial circulating of the n-th row braiding station repetition
Afterwards, each crochet returns to the initial position of this step, re-forms the braiding matrix A that n rows (n+1) are arranged；
Step 2)：Each crochet in the braiding matrix A arranged positioned at n rows (n+1) is compiled rotating around its any one adjacent
Knit station to rotate forward or invert 90 °, make crochet be arranged as the braiding matrix B of (n+1) row n row；
Step 3)：Rotate positioned at the braiding station of the 1st row of square formation M, the crochet of braiding station both sides is driven around the braiding
Stand after 180 ° of forward or reverse, the braiding station rotation direction of the 2nd row is with the braiding station rotation direction of the 1st row conversely, driving braiding
Stand both sides crochet around 180 ° of the braiding station rotating in same direction, after such recirculation 2 times, each crochet returns to the initial of this step
Position, completes a partial circulating；Then, the braiding station of the 2nd row and the 3rd row repeat above-mentioned partial circulating ... until (n-1) OK
After the above-mentioned partial circulating of line n braiding station repetition, each crochet returns to the initial position of this step, (n+1) the row n for re-forming
The braiding matrix B of row；
Step 4)：Step 3) the braiding matrix B that obtains according to step 2) path it is identical, in opposite direction to be rotated by 90 °, weight
Step 1 is obtained newly) braiding matrix A that the n rows (n+1) of initial position are arranged, complete a circulation；
Step 5)：Step 1 is repeated several times)-step 4), complete braiding.
Wherein, the step 2) in, each crochet rotation direction and rotational angle follow occupy-place and avoid principle：Any one
There are four rooms in four, upper and lower, left and right position in individual braiding station, each room only allows a crochet occupy-place, when this
After position is by a crochet occupy-place, other crochets then avoid the position, and each formater is rotated around its adjacent establishment station
Carry out occupy-place.
Further, each formater rotates 90 ° or 270 ° around its adjacent establishment station and carries out occupy-place.
Further, each formater rotates 90 ° for optimum around its adjacent establishment station, because compiling in the change procedure
The route for knitting device traveling is most short, more saves the braiding time.
Further, the step 2) in, it is m by each the braiding station element number in square formation MI, j, matrix A will be woven
Each crochet element number be a, wherein i, j are positive integer, in square formation M braiding station m1,1Rotation drive its both sides volume
Knit device a1,1And a1,2Rotate simultaneously.
Further, the step 2) in, in square formation M, as i=j, mI, jDrive aI, jAnd aI, j+1Around mI, jRotate.
Further, as i=j, mI, jRotation direction it is identical.
Further, as i ＞ j, mI, jA is driven onlyI, jAround mI, jRotate.
Further, as i ＜ j, mI, jA is driven onlyI, j+1Around mI, jRotate.
Further, as i ＞ j and as i ＜ j, mI, jRotation direction with as i=j rotation direction it is contrary.
Wherein, the step 1) in, forward direction is clockwise or is counterclockwise.
The three dimensional fabric prepared according to said method has the performance of good opposing ablation.
The regular motion of crochet is driven by weaving the rotation at station, is driven, compile
Knitting device motion drives yarn movement to complete braiding.Crochet is arranged as into into the braiding matrix A that n rows (n+1) are arranged, the yarn per a line
Line is one group, per the yarn in group according to step 1) woven, n-layer fabric, the flower knot of fabric are formed after the completion of the step
Similar plait, afterwards according to step 2) yarn changing position forms (n+1) row n column matrix B, the process yarn interlocks, step 3)
In again with the yarn of every string as one group, per the yarn in group according to step 3) woven, the process make fabric with step
1) the thread layers Vertical Square for being formed extends upward n-layer, then by yarn according to step 4) playback, so repeats down, is formed
Fabric be the alternate multilayer fabric of transverse and longitudinal, therefore one layer of fabric removal wherein, other layers of reservation still have complete group
Knit, do not affect the overall performance of fabric, and the technique easily realizes continuous prodution, be applied to reenter formula aerospace craft,
The preparation of the ablative composite material of long-range missile etc.
Embodiment two：
A kind of 3 D weaving technique, the 3 D weaving technique are completed on three dimensional knitting machine, the three dimensional knitting machine bag
Crochet and braiding station are included, crochet is arranged in the braiding matrix A that n rows (n+1) are arranged, and it is any that the braiding station is arranged on same a line
Between adjacent two crochet, braiding station is made to be arranged in n rank square formations M, braiding station drives crochet same around braiding station around its axle rotation
To rotation, the rule motion for controlling crochet completes braiding.
2 rank square formations M being arranged in weaving station below are illustrated：
As shown in figure 1, crochet is 6, one end and the three dimensional knitting machine of yarn are fixed, and the other end is arranged on crochet
On, braiding station rotates and drives crochet motion and then drive yarn movement to realize braiding, and crochet is arranged in the braiding of the row of 2 row 3
Matrix A, each crochet are numbered as aI, j(being expressed as the crochet of the i-th row jth row), braiding station are arranged on same a line
Between two crochet of arbitrary neighborhood, 2 rank square formations M that station is arranged in are woven, each the braiding station element number in square formation M is mI, j
(representing the braiding station of the i-th row jth row), i, j are positive integer, form the arrangement mode as shown in Fig. 1 (1).
A kind of braiding step of 3 D weaving technique is as follows：
Step 1)：
(1) as shown in Fig. 1 (1), positioned at the 1st braiding station m for arranging of square formation M1,1With braiding station m2,1Simultaneously according to counterclockwise
Rotation, braiding station m1,1Pivoting drives the crochet a of its both sides1,1With crochet a1,2180 ° are rotated counterclockwise, crochet is made
a1,1With crochet a1,2Exchange position, braiding station m2,1Pivoting drives the crochet a of its both sides2,1With crochet a2,2Inverse time
Pin rotates 180 °, makes crochet a2,1With crochet a2,2Exchange position, forms the arrangement mode as shown in Fig. 1 (2)；
(2) as shown in Fig. 1 (2), positioned at the 2nd braiding station m for arranging of square formation M1,2With braiding station m2,2Simultaneously according to clockwise
Rotation, braiding station m1,2Pivoting drives the crochet a of its both sides1,1With crochet a1,3180 ° are rotated clockwise, crochet is made
a1,1With crochet a1,3Exchange position, braiding station m2,2Rotate the crochet a for driving its both sides2,1With crochet a2,3Turn clockwise
It is dynamic 180 °, make crochet a2,1With crochet a2,3Exchange position, forms the arrangement mode as shown in Fig. 1 (3)；
(3) as shown in Fig. 1 (3), positioned at the 1st braiding station m for arranging of square formation M1,1With braiding station m2,1Repeat the rotation of (1),
I.e. simultaneously according to rotate counterclockwise, braiding station m1,1Pivoting, drives crochet a1,2With crochet a1,3Rotate counterclockwise
180 °, make crochet a1,2With crochet a1,3Exchange position, while weaving station m2,1Rotate counterclockwise around axle, drive crochet a2,2
With crochet a2,3180 ° are rotated counterclockwise, crochet a is made2,2With crochet a2,3Exchange position, forms as schemed the row shown in (4)
Row mode；
(4) as shown in Fig. 1 (4), positioned at the 2nd braiding station m for arranging of square formation M1,2With braiding station m2,2Repeat the rotation of (2),
I.e. simultaneously according to turning clockwise, station m is woven1,2180 ° of rotation is rotated clockwise, the crochet a of its both sides is driven1,2And braiding
Device a1,1180 ° are rotated clockwise, crochet a is made1,2With crochet a1,1Exchange position, braiding station m2,2Rotate clockwise 180 ° of bands
Move the crochet a of its both sides2,2With crochet a2,1180 ° are rotated clockwise, crochet a is made2,2With crochet a2,1Exchange position,
Form the arrangement mode as shown in Fig. 1 (5)；
(5) as shown in Fig. 1 (5), positioned at the 1st braiding station m for arranging of square formation M1,1With braiding station m2,1Repeat the rotation of (1),
I.e. simultaneously according to rotate counterclockwise, braiding station m1,1180 ° are rotated counterclockwise, crochet a is driven1,3With crochet a1,1Turn counterclockwise
It is dynamic 180 °, make crochet a1,3With crochet a1,1Exchange position, while weaving station m2,1180 ° are rotated counterclockwise, crochet is driven
a2,3With crochet a2,1180 ° are rotated counterclockwise, crochet a is made2,3With crochet a2,1Exchange position, forms as schemed shown in (6)
Arrangement mode；
(6) as shown in Fig. 1 (6), positioned at the 2nd braiding station m for arranging of square formation M1,2With braiding station m2,2Repeat the rotation of (2),
I.e. simultaneously according to turning clockwise, station m is woven1,2180 ° are rotated clockwise, the crochet a of its both sides is driven1,2With crochet a1,3
180 ° are rotated clockwise, crochet a is made1,2With crochet a1,3Exchange position, braiding station m2,2Rotate clockwise 180 ° drive its two
The crochet a of side2,2With crochet a2,3180 ° are rotated clockwise, crochet a is made2,2With crochet a2,3Exchange position, forms such as
Arrangement mode shown in Fig. 1 (7), Fig. 1 (7) and Fig. 1 (1) represent same braiding matrix A, i.e., grasp through above-mentioned repetitive cycling
Make, each crochet returned to step 1) initial position；
Step 2)：As shown in Fig. 1 (7), the braiding station m on square formation M leading diagonal1,1With braiding station m2,2Around axle up time
Pin rotates 90 °, braiding station m1,1Turn clockwise 90 ° and drive the crochet a of its both sides1,1With crochet a1,2Around braiding station m1,1It is suitable
Hour hands are rotated by 90 °, and make crochet a1,1With crochet a1,2Split m1,1Both sides, weave station m up and down2,2Turn clockwise 90 ° and drive
The crochet a of its both sides2,2With crochet a2,3Around braiding station m2,290 ° are turned clockwise, crochet a is made2,2With crochet a2,3Point
Put braiding station m2,2Upper and lower both sides；Positioned at the braiding station m of square formation M leading diagonal both sides2,1With braiding station m1,2Around axle rotate counterclockwise
90 °, braiding station m2,1Rotate counterclockwise drives the crochet a on the left of which2,1Turn 90 ° counterclockwise, braiding station m1,2Rotate counterclockwise band
Move the crochet a on the right side of which1,3Turn 90 ° counterclockwise, make crochet be arranged in the braiding matrix B of the row of 3 row 2, shown in such as Fig. 1 (8)；
Step 3)：
(1) as shown in Fig. 1 (8), positioned at the braiding station m of the 1st row of square formation M1,1With braiding station m1,2It is simultaneously suitable around axle
Hour hands rotate 180 °, braiding station m1,1Rotate the crochet a for driving its both sides1,1With crochet a1,2180 ° are rotated clockwise, is made
a1,1And a1,2Exchange position；Braiding station m1,2Rotate clockwise 180 ° of crochet a for driving its both sides2,2With crochet a1,3Up time
Pin rotates 180 °, makes crochet a2,2With crochet a1,3Exchange position, forms the arrangement mode as shown in Fig. 1 (9)；
(2) as shown in Fig. 1 (9), positioned at the braiding station m of the 2nd row of square formation M2,1With braiding station m2,2Simultaneously according to inverse
Hour hands rotate 180 °, braiding station m2,1180 ° of rotate counterclockwise drives the crochet a of its both sides1,1With crochet a2,1Turn counterclockwise
It is dynamic 180 °, make crochet a1,1With crochet a2,1Exchange position；Braiding station m2,2Rotate counterclockwise the crochet for driving its both sides
a2,3With crochet a1,3180 ° are rotated counterclockwise, crochet a is made2,3With crochet a1,3Exchange position, forms as shown in Fig. 1 (10)
Arrangement mode；
(3) as shown in Fig. 1 (10), positioned at the braiding station m of the 1st row of square formation M1,1With braiding station m1,2Repeat the step
In the direction of (1) rotate, i.e., simultaneously according to turning clockwise, braiding station m1,1Rotate clockwise 180 ° of braidings for driving its both sides
Device a1,2With crochet a2,1180 ° are rotated clockwise, crochet a is made1,2With crochet a2,1Exchange position；Braiding station m1,2Clockwise
Rotate the crochet a for driving its both sides2,2With crochet a2,3180 ° are rotated clockwise, crochet a is made2,2With crochet a2,3Exchange
Position, forms the arrangement mode as shown in Fig. 1 (11)；
(4) as shown in Fig. 1 (11), positioned at the braiding station m of the 2nd row of square formation M2,1With braiding station m2,2Repeat the step
In the direction of (2) rotate, i.e., simultaneously according to rotate counterclockwise, braiding station m2,1Rotate counterclockwise 180 ° of braidings for driving its both sides
Device a1,1With crochet a1,2180 ° are rotated counterclockwise, crochet a is made1,1With crochet a1,2Exchange position；Braiding station m2,2Counterclockwise
Rotate 180 ° and rotate the crochet a for driving its both sides1,3With crochet a2,2180 ° are rotated counterclockwise, crochet a is made1,3And braiding
Device a2,2Exchange position, forms the arrangement mode as shown in Fig. 1 (12)；
(5) as shown in Fig. 1 (12), positioned at the braiding station m of the 1st row of square formation M1,1With braiding station m1,2Repeat the step
In the direction of (1) rotate, i.e., simultaneously according to turning clockwise, braiding station m1,1Rotate clockwise 180 ° of braidings for driving its both sides
Device a2,1With crochet a1,1180 ° are rotated clockwise, crochet a is made2,1With crochet a1,1Exchange position；Braiding station m1,2Clockwise
Drive 180 ° of crochet a for making its both sides1,3With crochet a2,3180 ° are rotated clockwise, crochet a is made1,3With crochet a2,3Hand over
Change place, forms the arrangement mode as shown in Fig. 1 (13)；
(6) as shown in Fig. 1 (13), positioned at the braiding station m of the 2nd row of square formation M2,1With braiding station m2,2Repeat the step
In the direction of (2) rotate, i.e., simultaneously according to rotate counterclockwise, braiding station m2,1Rotate the crochet a for driving its both sides1,2And braiding
Device a2,1180 ° are rotated counterclockwise, crochet a is made1,2With crochet a2,1Exchange position；Station m is woven simultaneously2,2Rotate counterclockwise
180 ° of crochet a for driving its both sides2,3With crochet a2,2180 ° are rotated counterclockwise, crochet a is made2,3With crochet a2,2Exchange
Position, forms the arrangement mode as shown in Fig. 1 (14), and now each crochet returns to the initial position of the step；
Step 4)：As shown in Fig. 1 (14), step 4) in composition square formation M each braiding station rotation direction and step
2) rotation direction at braiding station corresponding in is conversely, the anglec of rotation is identical；The braiding station being located on square formation M leading diagonal
m1,1With braiding station m2,290 ° are rotated counterclockwise around axle, braiding station m1,1Drive the crochet a of its both sides1,1With crochet a1,2Around volume
Knit station m1,190 ° of rotate counterclockwise, makes crochet a1,1With crochet a1,2Split m1,1The left and right sides, braiding station m2,2Drive its two
The crochet a of side2,2With crochet a2,3Around braiding station m2,290 ° of rotate counterclockwise, makes crochet a2,2With crochet a2,3Split
m2,2The left and right sides；Positioned at the braiding station m of square formation M leading diagonal both sides2,1With braiding station m1,2Turn clockwise around axle, braiding station
m2,1Turn clockwise drive its on the downside of crochet a2,1Turn 90 ° clockwise, make crochet a2,1Positioned at braiding station m2,1Left side,
Braiding station m1,2Rotate clockwise drive its on the upside of crochet a1,3Turn 90 ° clockwise, make crochet a1,3Positioned at braiding station m1,2
Right side, form the arrangement mode such as Fig. 1 (15), Fig. 1 (15) is identical with the arrangement mode of each crochets of Fig. 1 (1), each crochet
Initial position is come back to, a circulation is completed；
Step 5)：Repeat step 1)-step 4), complete to be knitted to form fabric.
Crochet is 6, each to carry a spinning, and six roots of sensation spinning is lined up 2 rows 3 and arranged, one group of each behavior, by step
1) two-layer fabrics, are knitted to form, then the flower knot in every layer of fabric spins 6 according to step 2 similar to plait) become transposition
The braiding matrix to form the row of 3 row 2 is put, the step makes the yarns interwoven in the two-layer fabrics being separated from each other, afterwards again with every string
For one group, according to step 3) woven, make every string form one layer of fabric, form two-layer, step 1 altogether) and step 3) formed
Tissue layer it is perpendicular, due to step 2) make step 1) with step 3) in yarns interwoven, the tissue layer of formation is woven together,
Finally, through step 4) each spinning playback, a circulation is completed, so circulation is gone down, and in the fabric of braiding structure, 6 one threads exist
In regular intertexture, separation, interleaved order in fabric, after one layer of fabric removal therein, one layer still has completely in addition
Tissue, do not affect the overall performance of fabric, and the technique easily realize continuous prodution, can be applicable to reenter formula space flight and fly
The preparation of the ablative composite material of row device, long-range missile etc..
As shown in figure 5, in the present embodiment weaving prepare fabric structure.
In commercial production, can be expanded as needed, expansion mode is outside as n rank square formations in the way of to weave station
Expand.
Embodiment three：
The present embodiment with the difference of embodiment two is, step 1 in the present embodiment) in be located at square formation M the 1st row braiding
Stand m1,1With braiding station m2,1Simultaneously according to turning clockwise, afterwards the braiding station rotation direction in each step with embodiment two-phase
The rotation direction at the braiding station of relevant position in step is answered conversely, rotational angle is identical, completes to be knitted to form and embodiment two
Structure identical three dimensional fabric.
Example IV：
A kind of 3 D weaving technique, the 3 D weaving technique are completed on three dimensional knitting machine, and three dimensional knitting machine includes braiding
Device and braiding station, crochet are arranged in the braiding matrix A that n rows (n+1) are arranged, and the braiding station is arranged on same a line arbitrary neighborhood two
Between crochet, braiding station is made to be arranged in n rank square formations M, braiding station drives crochet around braiding station rotating in same direction around its axle rotation,
The rule motion of control crochet completes braiding.
As shown in Fig. 2 crochet is 12, one end and the three dimensional knitting machine of yarn are fixed, and the other end is arranged on crochet
On, braiding station rotates and drives crochet motion and then drive yarn movement to realize braiding, and crochet is arranged in the braiding of the row of 3 row 4
Matrix A, each crochet are numbered as aI, j(being expressed as the crochet of the i-th row jth row), braiding station are arranged on same a line
Between two crochet of arbitrary neighborhood, 3 rank square formations M that station is arranged in are woven, each the braiding station element number in square formation M is mI, j
(representing the braiding station of the i-th row jth row), i, j are positive integer, form the arrangement mode as shown in Fig. 2 (1).
A kind of braiding step of 3 D weaving technique is as follows：
Step 1)：
The braiding station of the row of square formation M the 1st carries out following partial circulatings with the braiding station of the row of square formation M the 2nd, and step is as follows：
A：The braiding station of the row of square formation M the 1st is rotated as follows with the braiding station of the row of square formation M the 2nd, and step is as follows：
(1) as shown in Fig. 2 (1), positioned at the 1st braiding station m for arranging of square formation M1,1, braiding station m2,1With braiding station m3,1Simultaneously
According to rotate counterclockwise, braiding station m1,1Pivoting drives the crochet a of its both sides1,1With crochet a1,2Rotate counterclockwise
180 °, make crochet a1,1With crochet a1,2Exchange position；Braiding station m2,1Pivoting drives the crochet a of its both sides2,1With
Crochet a2,2180 ° are rotated counterclockwise, crochet a is made2,1With crochet a2,2Exchange position；Braiding station m3,1Pivoting drives
The crochet a of its both sides3,1With crochet a3,2180 ° are rotated counterclockwise, crochet a is made3,1With crochet a3,2Exchange position, shape
Into the arrangement mode as shown in Fig. 2 (2)；
(2) as shown in Fig. 2 (2), positioned at the 2nd braiding station m for arranging of square formation M1,2, braiding station m2,2With braiding station m3,2Simultaneously
According to turning clockwise, station m is woven1,2Pivoting drives the crochet a of its both sides1,1With crochet a1,3Rotate clockwise
180 °, make crochet a1,1With crochet a1,3Exchange position；Braiding station m2,2Rotate the crochet a for driving its both sides2,1And braiding
Device a2,3180 ° are rotated clockwise, crochet a is made2,1With crochet a2,3Exchange position；Braiding station m3,2Rotate and drive its both sides
Crochet a3,1With crochet a3,3180 ° are rotated clockwise, crochet a is made3,1With crochet a3,3Exchange position, forms such as Fig. 2
(3) arrangement mode shown in；
B：Above-mentioned rotating operation is repeated for the first time with the braiding station of the row of square formation M the 2nd in the braiding station of the row of square formation M the 1st, and step is such as
Under：
(3) as shown in Fig. 2 (3), positioned at the 1st braiding station m for arranging of square formation M1,1, braiding station m2,1With braiding station m3,1Repeat
(1) rotation, i.e., simultaneously according to rotate counterclockwise, braiding station m1,1Pivoting, drives crochet a1,2With crochet a1,3Inverse time
Pin rotates 180 °, makes crochet a1,2With crochet a1,3Exchange position；Station m is woven simultaneously2,1Rotate counterclockwise around axle, drive and compile
Knit device a2,2With crochet a2,3180 ° are rotated counterclockwise, crochet a is made2,2With crochet a2,3Exchange position；Braiding station m3,1Around axle
Rotate counterclockwise, drive crochet a3,2With crochet a3,3180 ° are rotated counterclockwise, crochet a is made3,2With crochet a3,3Exchange
Position, forms the arrangement mode as shown in Fig. 2 (4)；
(4) as shown in Fig. 2 (4), positioned at the 2nd braiding station m for arranging of square formation M1,2, braiding station m2,2With braiding station m3,2Repeat
(2) rotation, i.e., simultaneously according to turning clockwise, weave station m1,2180 ° of rotation is rotated clockwise, the crochet of its both sides is driven
a1,2With crochet a1,1180 ° are rotated clockwise, crochet a is made1,2With crochet a1,1Exchange position；Braiding station m2,2Turn clockwise
The dynamic 180 ° crochet a for driving its both sides2,2With crochet a2,1180 ° are rotated clockwise, crochet a is made2,2With crochet a2,1Hand over
Change place；Braiding station m3,2Rotate clockwise 180 ° of crochet a for driving its both sides3,2With crochet a3,1180 ° are rotated clockwise,
Make crochet a3,2With crochet a3,1Exchange position, forms the arrangement mode as shown in Fig. 2 (5)；
C：Above-mentioned rotating operation is repeated for the second time with the braiding station of the row of square formation M the 2nd in the braiding station of the row of square formation M the 1st, concrete to walk
It is rapid as follows：
(5) as shown in Fig. 2 (5), positioned at the 1st braiding station m for arranging of square formation M1,1, braiding station m2,1With braiding station m3,1Repeat
(1) rotation, i.e., simultaneously according to rotate counterclockwise, braiding station m1,1180 ° are rotated counterclockwise, crochet a is driven1,3And crochet
a1,1180 ° are rotated counterclockwise, crochet a is made1,3With crochet a1,1Exchange position；Station m is woven simultaneously2,1180 ° are rotated counterclockwise,
Drive crochet a2,3With crochet a2,1180 ° are rotated counterclockwise, crochet a is made2,3With crochet a2,1Exchange position；Braiding station
m3,1180 ° are rotated counterclockwise, crochet a is driven3,3With crochet a3,1180 ° are rotated counterclockwise, crochet a is made3,3And crochet
a3,1Exchange position, forms as schemed the arrangement mode shown in (6)；
(6) as shown in Fig. 2 (6), positioned at the 2nd braiding station m for arranging of square formation M1,2, braiding station m2,2With braiding station m3,2Repeat
(2) rotation, i.e., simultaneously according to turning clockwise, weave station m1,2180 ° are rotated clockwise, the crochet a of its both sides is driven1,2
With crochet a1,3180 ° are rotated clockwise, crochet a is made1,2With crochet a1,3Exchange position；Braiding station m2,2Rotate clockwise
180 ° of crochet a for driving its both sides2,2With crochet a2,3180 ° are rotated clockwise, crochet a is made2,2With crochet a2,3Exchange
Position；Braiding station m3,2Rotate clockwise 180 ° of crochet a for driving its both sides3,2With crochet a3,3180 ° are rotated clockwise, is made
Crochet a3,2With crochet a3,3Exchange position, forms the arrangement mode as shown in Fig. 2 (7), and Fig. 2 (7) and Fig. 2 (1) represents same
One braiding matrix A, i.e., operate through above-mentioned repetitive cycling, and each crochet returned to step 1) initial position, said process
For a partial circulating；
Above-mentioned partial circulating is repeated with the braiding station of the row of square formation M the 3rd in the braiding station of the row of square formation M the 2nd, and step is as follows：
A：The braiding station of the row of square formation M the 2nd is rotated as follows with the braiding station of the row of square formation M the 3rd, and step is as follows：
(1) as shown in Fig. 2 (7), positioned at the 2nd braiding station m for arranging of square formation M1,2With braiding station m2,2With braiding station m3,2Simultaneously
According to rotate counterclockwise, braiding station m1,2Pivoting drives the crochet a of its both sides1,2With crochet a1,3Rotate counterclockwise
180 °, make crochet a1,2With crochet a1,3Exchange position；Braiding station m2,2Pivoting drives the crochet a of its both sides2,2With
Crochet a2,3180 ° are rotated counterclockwise, crochet a is made2,2With crochet a2,3Exchange position；Braiding station m3,2Pivoting drives
The crochet a of its both sides3,2With crochet a3,3180 ° are rotated counterclockwise, crochet a is made3,2With crochet a3,3Exchange position, shape
Into the arrangement mode as shown in Fig. 2 (8)；
(2) as shown in Fig. 2 (8), positioned at the 3rd braiding station m for arranging of square formation M1,3, braiding station m2,3With braiding station m3,3Simultaneously
According to turning clockwise, station m is woven1,3Pivoting drives the crochet a of its both sides1,2With crochet aIsosorbide-5-NitraeRotate clockwise
180 °, make crochet a1,2With crochet aIsosorbide-5-NitraeExchange position；Braiding station m2,3Rotate the crochet a for driving its both sides2,2And braiding
Device a2,4180 ° are rotated clockwise, crochet a is made2,2With crochet a2,4Exchange position；Knit station m3,3Rotate the volume for driving its both sides
Knit device a3,2With crochet a3,4180 ° are rotated clockwise, crochet a is made3,2With crochet a3,4Exchange position, forms such as Fig. 2 (9)
Shown arrangement mode；
B：Above-mentioned rotating operation is repeated for the first time with the braiding station of the row of square formation M the 3rd in the braiding station of the row of square formation M the 2nd, and step is such as
Under：
(3) as shown in Fig. 2 (9), positioned at the 2nd braiding station m for arranging of square formation M1,2, braiding station m2,2With braiding station m3,2Repeat
(1) rotation, i.e., simultaneously according to rotate counterclockwise, braiding station m1,2Pivoting, drives crochet a1,3With crochet aIsosorbide-5-NitraeInverse time
Pin rotates 180 °, makes crochet a1,3With crochet aIsosorbide-5-NitraeExchange position；Station m is woven simultaneously2,2Rotate counterclockwise around axle, drive and compile
Knit device a2,3With crochet a2,4180 ° are rotated counterclockwise, crochet a is made2,3With crochet a2,4Exchange position；Braiding station m3,2Around axle
Rotate counterclockwise, drive crochet a3,3With crochet a3,4180 ° are rotated counterclockwise, crochet a is made3,3With crochet a3,4Exchange
Position, forms as schemed the arrangement mode shown in (10)；
(4) as shown in Fig. 2 (10), positioned at the 3rd braiding station m for arranging of square formation M1,3, braiding station m2,3With braiding station m3,3Repeat
(2) rotation, i.e., simultaneously according to turning clockwise, weave station m1,3180 ° of rotation is rotated clockwise, the crochet of its both sides is driven
a1,3With crochet a1,2180 ° are rotated clockwise, crochet a is made1,3With crochet a1,2Exchange position, braiding station m2,3Turn clockwise
The dynamic 180 ° crochet a for driving its both sides2,3With crochet a2,2180 ° are rotated clockwise, crochet a is made2,3With crochet a2,2Hand over
Change place；Braiding station m3,3Rotate clockwise 180 ° of crochet a for driving its both sides3,3With crochet a3,2180 ° are rotated clockwise,
Make crochet a3,3With crochet a3,2Exchange position, forms the arrangement mode as shown in Fig. 2 (11)；
C：Above-mentioned rotating operation is repeated for the second time with the braiding station of the row of square formation M the 3rd in the braiding station of the row of square formation M the 2nd, and step is such as
Under：
(5) as shown in Fig. 2 (11), positioned at the 2nd braiding station m for arranging of square formation M1,2, braiding station m2,2With braiding station m3,2Repeat
(1) rotation, i.e., simultaneously according to rotate counterclockwise, braiding station m1,2180 ° are rotated counterclockwise, crochet a is drivenIsosorbide-5-NitraeAnd crochet
a1,2180 ° are rotated counterclockwise, crochet a is madeIsosorbide-5-NitraeWith crochet a1,2Exchange position；Station m is woven simultaneously2,2180 ° are rotated counterclockwise,
Drive crochet a2,4With crochet a2,2180 ° are rotated counterclockwise, crochet a is made2,4With crochet a2,2Exchange position, braiding station
m3,2180 ° are rotated counterclockwise, crochet a is driven3,4With crochet a3,2180 ° are rotated counterclockwise, crochet a is made3,4And crochet
a3,2Exchange position, forms as schemed the arrangement mode shown in (12)；
(6) as shown in Fig. 2 (12), positioned at the 3rd braiding station m for arranging of square formation M1,3, braiding station m2,3With braiding station m3,3Repeat
(2) rotation, i.e., simultaneously according to turning clockwise, weave station m1,3180 ° are rotated clockwise, the crochet a of its both sides is drivenIsosorbide-5-Nitrae
With crochet a1,3180 ° are rotated clockwise, crochet a is madeIsosorbide-5-NitraeWith crochet a1,3Exchange position；Braiding station m2,3Rotate clockwise
180 ° of crochet a for driving its both sides2,3With crochet a2,4180 ° are rotated clockwise, crochet a is made2,3With crochet a2,4Exchange
Position；Braiding station m3,3Rotate clockwise 180 ° of crochet a for driving its both sides3,3With crochet a3,4180 ° are rotated clockwise, is made
Crochet a3,3With crochet a3,4Exchange position, forms the arrangement mode as shown in Fig. 2 (13), completes above-mentioned partial circulating；Obtain
Fig. 2 (13) and Fig. 2 (1) represent the braiding matrix A of the same row of 3 row 4, i.e., operate through above-mentioned repetitive cycling, each crochet
Returned to step 1) initial position；
Step 2)：The braiding matrix A that 3 rows 4 arranged by crochet are arranged is transformed to the braiding matrix B that 4 rows 3 are arranged
As shown in Fig. 2 (13), crochet is arranged as the braiding matrix A of the row of 3 row 4, braiding station m1,1Rotate clockwise around axle
90 °, drive the crochet a of its both sides1,1With crochet a1,2Around braiding station m1,190 ° are turned clockwise, crochet a is made1,1And volume
Knit device a1,2Braiding station m is located at respectively1,1Both sides up and down, braiding station m2,1With braiding station m3,190 ° are rotated counterclockwise rotating around axle
Crochet a is driven respectively2,1Around braiding station m3,190 ° of rotate counterclockwise, makes crochet a2,1With crochet a3,1Braiding is located at respectively
Stand m2,1With braiding station m3,1Lower section；Braiding station m1,290 ° of drive crochet a of rotate counterclockwise1,390 ° of rotate counterclockwise, makes volume
Knit device a1,3Positioned at braiding station m1,2Top, braiding station m2,290 ° are turned clockwise, crochet a is driven2,290 ° are turned clockwise,
Make crochet a2,2Positioned at braiding station m2,2Top；Braiding station m3,290 ° are rotated clockwise, the crochet a of its both sides is driven3,2With
Crochet a3,390 ° are rotated clockwise, crochet a is made3,2With crochet a3,3Braiding station m is located at respectively3,2Both sides up and down；Braiding
Stand m1,390 ° are rotated counterclockwise, crochet aIsosorbide-5-Nitrae90 ° are rotated counterclockwise, crochet a is madeIsosorbide-5-NitraePositioned at braiding station m1,3Top, braiding
Stand m2,390 ° are rotated clockwise, crochet a is driven2,3With crochet a2,490 ° are rotated clockwise, crochet a is made2,3And crochet
a2,4Braiding station m is located at respectively2,3Upper and lower both sides；Braiding station m3,3Rotate clockwise 90 ° of drive crochet a3,4Rotate clockwise
90 °, make crochet a3,4Positioned at braiding station m3,3Lower section, form arrangement mode as shown in Fig. 2 (14), Jing after above-mentioned conversion, 3
The braiding matrix A of the row of row 4 is transformed to the braiding matrix B of the row of 4 row 3；
The conversion of the step need to meet occupy-place and avoid principle：Any one braiding station around its surrounding it is upper and lower,
There are four rooms in left and right four positions, each room only allows a crochet occupy-place, when the position is accounted for by a crochet
Behind position, other crochets then avoid the position, and each formater carries out occupy-place around its adjacent establishment station rotation, with the present embodiment
Conversion rotated with the most short scheme of operating path, i.e., each formater only rotates 90 ° around its adjacent establishment station and carries out
Occupy-place, is explained as follows：
In the step, each crochet can only rotate clockwise or counterclockwise 90 ° of occupy-places, as braiding station m1,1It is clockwise around axle
90 ° are rotated, the crochet a of its both sides is driven1,1With crochet a1,2Around braiding station m1,190 ° are turned clockwise, by braiding station m1,1
Upper and lower two rooms occupy, afterwards due to occupy-place and avoidance principle, crochet a2,190 ° can not be turned clockwise and can only be around braiding
Stand m2,190 ° of rotate counterclockwise, crochet a2,1Occupy braiding station m2,1The room of bottom, in the same manner, crochet a3,1Can only be around braiding
Stand m3,190 ° are rotated counterclockwise, crochet a3,1Occupy braiding station m3,1The room of bottom；Positioned at braiding station m1,2The room on top is only
Can be by crochet a1,3Rotate counterclockwise 90 ° or by crochet a1,2Rotate clockwise 90 ° of occupy-places, but crochet a1,2Turn
To braiding station m1,1Bottom, therefore weave station m1,2The room on top can only be by crochet a1,3Rotate counterclockwise 90 ° of occupy-places；Compile
Knit station m1,2The room of bottom can be by crochet a2,2Turn 90 ° clockwise or by crochet a2,3Turn 90 ° counterclockwise, the present embodiment
Middle crochet a2,2Turn 90 ° clockwise and reach braiding station m2,2Top, (by crochet a2,3The situation for turning 90 ° counterclockwise also may be used
So that principle is mutually all other embodiment), braiding station m in the present embodiment2,2The room of bottom can be by crochet a2,3Up time
Pin turns 90 ° or by crochet a3,290 ° are turned over clockwise or by crochet a3,390 ° are rotated counterclockwise, crochet a2,3Clockwise
It is embodiment five to turn 90 °, and principle is identical, and here is not detailed, braiding station m3,2Upper and lower two rooms can only be by crochet a3,2With
Crochet a3,3Occupy-place, therefore the position can be crochet a3,2With crochet a3,3Turn 90 ° or while inverse time simultaneously clockwise
Pin turns 90 ° of occupy-places；Braiding station m1,3The room on top can only be by crochet aIsosorbide-5-NitraeRotate counterclockwise 90 ° of occupy-places, braiding station m3,3Bottom
Position can only be by crochet a3,4Turn 90 ° of occupy-places, braiding station m clockwise2,3Two rooms of upper and lower can only be by weaving
Device a2,3With crochet a2,4Rotate clockwise or counterclockwise 90 ° of occupy-places.
In above-mentioned conversion process, the crochet for rotating 90 ° around braiding station can also be by rotating backward 270 ° of arrival mesh
Cursor position, realizes braiding matrix A to the change of braiding matrix B.
Step 3)：By step 2) the braiding matrix B that obtains proceeds as follows：
A：The braiding station of the 1st row of square formation M is rotated as follows with the braiding station of the 2nd row of square formation M, and step is as follows：
(1) as shown in Fig. 2 (14), positioned at the braiding station m of the 1st row of square formation M1,1, braiding station m1,2With braiding station m1,3
180 ° are rotated counterclockwise around axle simultaneously, braiding station m1,1Rotate the crochet a for driving its both sides1,1With crochet a1,2Turn counterclockwise
It is dynamic 180 °, make a1,1And a1,2Exchange position；Braiding station m1,2Rotate counterclockwise 180 ° of crochet a for driving its both sides2,2And braiding
Device a1,3180 ° are rotated counterclockwise, crochet a is made2,2With crochet a1,3Exchange position；Braiding station m1,3Rotate counterclockwise 180 ° of bands
Move the crochet a of its both sidesIsosorbide-5-NitraeWith crochet a2,3180 ° are rotated counterclockwise, crochet a is madeIsosorbide-5-NitraeWith crochet a2,3Exchange position,
Form the arrangement mode as shown in Fig. 2 (15)；
(2) as shown in Fig. 2 (15), positioned at the braiding station m of the 2nd row of square formation M2,1, braiding station m2,2With braiding station m2,3
Simultaneously according to turning clockwise 180 °, station m is woven2,1Turn clockwise 180 ° and drive the crochet a of its both sides1,1And crochet
a2,1180 ° are rotated clockwise, crochet a is made1,1With crochet a2,1Exchange position；Braiding station m2,2Rotate clockwise drive its two
The crochet a of side1,3With crochet a3,2180 ° are rotated clockwise, crochet a is made1,3With crochet a3,2Exchange position；Braiding station
m2,3Rotate clockwise the crochet a for driving its both sidesIsosorbide-5-NitraeWith crochet a2,4180 ° are rotated clockwise, crochet a is madeIsosorbide-5-NitraeAnd braiding
Device a2,4Exchange position, forms the arrangement mode as shown in Fig. 2 (16)；
B：Above-mentioned rotating operation is repeated for the first time with the braiding station of the 2nd row of square formation M in the braiding station of the 1st row of square formation M, and step is such as
Under：
(3) as shown in Fig. 2 (16), positioned at the braiding station m of the 1st row of square formation M1,1, braiding station m1,2With braiding station m1,3
The direction for repeating (1) in the step rotates, i.e., simultaneously according to rotate counterclockwise, braiding station m1,1Rotate counterclockwise 180 ° and drive which
The crochet a of both sides1,2With crochet a2,1180 ° are rotated counterclockwise, crochet a is made1,2With crochet a2,1Exchange position；Braiding
Stand m1,2Rotate counterclockwise the crochet a for driving its both sides2,2With crochet a3,2180 ° are rotated counterclockwise, crochet a is made2,2And volume
Knit device a3,2Exchange position, braiding station m1,3Rotate counterclockwise the crochet a for driving its both sides2,3With crochet a2,4Rotate counterclockwise
180 °, make crochet a2,3With crochet a2,4Exchange position, forms the arrangement mode as shown in Fig. 2 (17)；
(4) as shown in Fig. 2 (17), positioned at the braiding station m of the 2nd row of square formation M2,1, braiding station m2,2With braiding station m2,3
The direction for repeating (2) in the step rotates, i.e., simultaneously according to turning clockwise, weave station m2,1Rotate clockwise 180 ° and drive which
The crochet a of both sides1,1With crochet a1,2180 ° are rotated clockwise, crochet a is made1,1With crochet a1,2Exchange position；Braiding
Stand m2,2Rotate clockwise 180 ° and rotate the crochet a for driving its both sides1,3With crochet a2,2180 ° are rotated clockwise, braiding is made
Device a1,3With crochet a2,2Exchange position；Braiding station m2,3Rotate clockwise 180 ° and rotate the crochet a for driving its both sides2,3And volume
Knit device aIsosorbide-5-Nitrae180 ° are rotated clockwise, crochet a is made2,3With crochet aIsosorbide-5-NitraeExchange position, forms the arrangement as shown in Fig. 2 (18)
Mode；
C：Above-mentioned rotating operation is repeated for the second time with the braiding station of the 2nd row of square formation M in the braiding station of the 1st row of square formation M, and step is such as
Under：
(5) as shown in Fig. 2 (18), positioned at the braiding station m of the 1st row of square formation M1,1, braiding station m1,2With braiding station m1,3
The direction for repeating (1) in the step rotates, i.e., simultaneously according to rotate counterclockwise, braiding station m1,1Rotate clockwise 180 ° and drive which
The crochet a of both sides2,1With crochet a1,1180 ° are rotated counterclockwise, crochet a is made2,1 and crochet a1,1Exchange position；Braiding
Stand m1,2Rotate counterclockwise and drive 180 ° of crochet a for making its both sides1,3With crochet a3,2180 ° are rotated counterclockwise, crochet is made
a1,3With crochet a3,2Exchange position；Braiding station m1,3Rotate counterclockwise and drive 180 ° of crochet a for making its both sides2,4And crochet
aIsosorbide-5-Nitrae180 ° are rotated counterclockwise, crochet a is made2,4With crochet aIsosorbide-5-NitraeExchange position, forms the arrangement mode as shown in Fig. 2 (19)；
(6) as shown in Fig. 2 (19), positioned at the braiding station m of the 2nd row of square formation M2,1, braiding station m2,2With braiding station m2,3
The direction for repeating (2) in the step rotates, i.e., simultaneously according to turning clockwise, weave station m2,1Rotate the braiding for driving its both sides
Device a2,1With crochet a1,2180 ° are rotated clockwise, crochet a is made1,2With crochet a2,1Exchange position；Station m is woven simultaneously2,2It is suitable
Hour hands rotate 180 ° of crochet a for driving its both sides3,2With crochet a2,2180 ° are rotated clockwise, crochet a is made3,2And braiding
Device a2,2Exchange position；Station m is woven simultaneously2,3Rotate clockwise 180 ° of crochet a for driving its both sides2,3With crochet a2,4Up time
Pin rotates 180 °, makes crochet a2,3With crochet a2,4Exchange position, forms the arrangement mode as shown in Fig. 2 (20)；
Above-mentioned steps are a partial circulating, and now each crochet returns to the initial position of the step；
Above-mentioned partial circulating is repeated at braiding station and the braiding station of the 3rd row of square formation M of the 2nd row of square formation M, and step is as follows：
A：The braiding station of the 2nd row of square formation M is rotated as follows with the braiding station of the 3rd row of square formation M, and step is as follows：
(1) as shown in Fig. 2 (20), positioned at the braiding station m of the 2nd row of square formation M2,1, braiding station m2,2With braiding station m2,3
180 ° are rotated counterclockwise around axle simultaneously, braiding station m2,1Rotate the crochet a for driving its both sides1,2With crochet a2,1Turn counterclockwise
It is dynamic 180 °, make crochet a1,2With crochet a2,1Exchange position；Braiding station m2,2Rotate counterclockwise 180 ° of braidings for driving its both sides
Device a2,2With crochet a3,2180 ° are rotated counterclockwise, crochet a is made2,2With crochet a3,2Exchange position, braiding station m2,3Counterclockwise
Rotate 180 ° of crochet a for driving its both sides2,3With crochet a2,4180 ° are rotated counterclockwise, crochet a is made2,3With crochet a2,4
Exchange position, forms the arrangement mode as shown in Fig. 2 (21)；
(2) as shown in Fig. 2 (21), positioned at the braiding station m of the 3rd row of square formation M3,1, braiding station m3,2With braiding station m3,3
Simultaneously according to turning clockwise 180 °, station m is woven3,1Turn clockwise 180 ° and drive the crochet a of its both sides1,2And crochet
a3,1180 ° are rotated clockwise, crochet a is made1,2With crochet a3,1Exchange position；Braiding station m3,2Rotate clockwise drive its two
The crochet a of side2,2With crochet a3,3180 ° are rotated clockwise, crochet a is made2,2With crochet a3,3Exchange position, braiding station
m3,3Rotate clockwise the crochet a for driving its both sides2,3With crochet a3,4180 ° are rotated clockwise, crochet a is made2,3And braiding
Device a3,4Exchange position, forms the arrangement mode as shown in Fig. 2 (22)；
B：Above-mentioned rotating operation is repeated for the first time with the braiding station of the 3rd row of square formation M in the braiding station of the 2nd row of square formation M, and step is such as
Under：
(3) as shown in Fig. 2 (22), positioned at the braiding station m of the 2nd row of square formation M2,1, braiding station m2,2With braiding station m2,3
The direction for repeating (1) in the step rotates, i.e., simultaneously according to rotate counterclockwise, braiding station m2,1Rotate counterclockwise 180 ° and drive which
The crochet a of both sides2,1With crochet a3,1180 ° are rotated counterclockwise, crochet a is made2,1With crochet a3,1Exchange position；Braiding
Stand m2,2Rotate counterclockwise the crochet a for driving its both sides3,2With crochet a3,3180 ° are rotated counterclockwise, crochet a is made3,2And volume
Knit device a3,3Exchange position, braiding station m2,3Rotate counterclockwise the crochet a for driving its both sides2,4With crochet a3,4Rotate counterclockwise
180 °, make crochet a2,4With crochet a3,4Exchange position, forms the arrangement mode as shown in Fig. 2 (23)；
(4) as shown in Fig. 2 (23), positioned at the braiding station m of the 3rd row of square formation M3,1, braiding station m3,2With braiding station m3,3
The direction for repeating (2) in the step rotates, i.e., simultaneously according to turning clockwise, weave station m3,1Rotate clockwise 180 ° and drive which
The crochet a of both sides2,1With crochet a1,2180 ° are rotated clockwise, crochet a is made2,1With crochet a1,2Exchange position；Braiding
Stand m3,2Rotate clockwise 180 ° and rotate the crochet a for driving its both sides3,2With crochet a2,2180 ° are rotated clockwise, braiding is made
Device a3,2With crochet a2,2Exchange position；Braiding station m3,3Rotate clockwise 180 ° and rotate the crochet a for driving its both sides2,3And volume
Knit device a2,4180 ° are rotated clockwise, crochet a is made2,3With crochet a2,4Exchange position, forms the arrangement as shown in Fig. 2 (24)
Mode；
C：Above-mentioned rotating operation is repeated for the second time with the braiding station of the 3rd row of square formation M in the braiding station of the 2nd row of square formation M, and step is such as
Under：
(5) as shown in Fig. 2 (24), positioned at the braiding station m of the 2nd row of square formation M2,1, braiding station m2,2With braiding station m2,3
The direction for repeating (1) in the step rotates, i.e., simultaneously according to rotate counterclockwise, braiding station m2,1Rotate counterclockwise 180 ° and drive which
The crochet a of both sides3,1With crochet a1,2180 ° are rotated counterclockwise, crochet a is made3,1With crochet a1,2Exchange position；Braiding
Stand m2,2Rotate counterclockwise and drive 180 ° of crochet a for making its both sides3,3With crochet a2,2180 ° are rotated counterclockwise, crochet is made
a3,3With crochet a2,2Exchange position；Braiding station m2,3Rotate counterclockwise and drive 180 ° of crochet a for making its both sides3,4And crochet
a2,3180 ° are rotated counterclockwise, crochet a is made2,3With crochet a3,4Exchange position, forms the arrangement mode as shown in Fig. 2 (25)；
(6) as shown in Fig. 2 (25), positioned at the braiding station m of the 3rd row of square formation M3,1, braiding station m3,2With braiding station m3,3
The direction for repeating (2) in the step rotates, i.e., simultaneously according to turning clockwise, weave station m3,1Rotate the braiding for driving its both sides
Device a3,1With crochet a2,1180 ° are rotated clockwise, crochet a is made3,1With crochet a2,1Exchange position；Station m is woven simultaneously3,2It is suitable
Hour hands rotate 180 ° of crochet a for driving its both sides3,3With crochet a3,2180 ° are rotated clockwise, crochet a is made3,3And braiding
Device a3,2Exchange position, while weaving station m3,3Rotate clockwise 180 ° of crochet a for driving its both sides2,4With crochet a3,4Up time
Pin rotates 180 °, makes crochet a2,4With crochet a3,4Exchange position, forms the arrangement mode as shown in Fig. 2 (26), completes
Partial circulating is stated, now each crochet returns to the initial position of the step, obtain weaving matrix B, Fig. 2 (26) and Fig. 2 (14) is
Same matrix；
Step 4)：
In this step, shown in such as Fig. 2 (26), each crochet in the braiding matrix B of the row of 4 row 3 according to step 2) in respectively
The path of crochet rotates backward, and rotational angle is constant, the braiding matrix B that 4 rows 3 are arranged is changed into the braiding matrix A that 3 rows 4 are arranged
As shown in Fig. 2 (27).
Step 5)：Step 1 is repeated several times)-step 4), complete braiding.
Wherein, step 1) in, in each step the rotation direction of each crochet conversely, rotational angle is identical, the fabric of gained
Structure has identical performance with claimed fabric of the invention.
Wherein, step 3) in, in each step the rotation direction of each crochet conversely, rotational angle is identical, the fabric of gained
Structure also has identical performance with claimed fabric of the invention.
Wherein, step 1) and step 3) in, in square formation M, the 1st row can also be identical with the rotation direction of the 1st row.
Embodiment five：
The present embodiment is distinguished as with example IV：Step 2) in, the braiding matrix A of the row of 3 row 4 is changed into the braiding of the row of 4 row 3
The conversion process of matrix is, such as shown in Fig. 3 (13), the braiding station positioned at square formation M leading diagonal position rotates forward, and drives its both sides
Crochet rotates forward 90 °, positioned at the braiding station reversion of angular position under leading diagonal, drives the crochet on the left of which to invert 90 °, position
The braiding station reversion of angular position on the leading diagonal, drives the crochet on the right side of which to invert 90 °, obtains the volume of the row of 4 row 3
Knit matrix B, such as Fig. 3 (14)；
As shown in Fig. 4 (26), step 4) in each crochet rotation direction and step 2) conversely, rotational angle and step
2) it is identical, conversion obtain 3 row 4 row braiding matrix A, the performance of the 3 D weaving fabric obtained after such as Fig. 4 (27) conversion with
The performance of the 3 D weaving fabric that example IV is obtained is identical.
Wherein, step 2) conversion can be for various, as long as meeting each volume in the braiding matrix A arranged positioned at n rows (n+1)
Knit device 90 ° to be rotated forward or inverted rotating around its any one adjacent braiding station and meet occupy-place and avoid principle, make crochet
It is arranged as the braiding matrix B of (n+1) row n row；The element occupy-place of the braiding matrix B that conversion process is produced is different, but, should
The purpose of conversion is to realize the intertexture of yarn, and final fabric construction and property are identical.
Wherein, forward direction is clockwise or counterclockwise.
Above-mentioned weaving can adopt the three-dimensional automatic knitting machine of patent 201310356337.1 to complete.
Expand to weaving station, square formation M that braiding station constitutes is 4 ranks, 5 ranks, 6 rank ... N ranks can be according to above-mentioned three
Dimension weaving prepares claimed three dimensional fabric of the invention.
The above is only presently preferred embodiments of the present invention, not makees any pro forma restriction to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people for being familiar with this patent
Member in the range of without departing from technical solution of the present invention, when using the technology contents of above-mentioned prompting make it is a little change or be modified to
The Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to the technical spirit pair of the present invention
Any simple modification, equivalent variations and modification that above example is made, still fall within the range of the present invention program.
Claims (5)
1. a kind of 3 D weaving technique, the 3 D weaving technique are completed on three dimensional knitting machine, and the three dimensional knitting machine includes
Crochet and braiding station, crochet are arranged in the braiding matrix A that n rows (n+1) are arranged, and the braiding station is arranged on any phase of same a line
Between two adjacent crochets, braiding station is made to be arranged in n rank square formations M, braiding station is around drive crochet while its axle rotation around volume
Knit station to rotate, the rule motion for controlling crochet completes braiding, it is characterised in that comprise the following steps：
Step 1)：Positioned at square formation M the 1st row braiding station rotate, drive braiding station both sides crochet around the braiding station just
After turning 180 °, the braiding station positioned at the row of square formation M the 2nd rotates, and drives the crochet of braiding station both sides to invert around the braiding station
180 °, after such recirculation 2 times, each crochet returns to the initial position of this step, completes a partial circulating；Then, the 2nd row with
The above-mentioned partial circulating ... of braiding station repetition of the 3rd row is woven after the above-mentioned partial circulating of repetition of standing, respectively up to (n-1) row and the n-th row
Crochet returns to the initial position of this step, re-forms the braiding matrix A that n rows (n+1) are arranged；
Step 2)：Each crochet in the braiding matrix A arranged positioned at n rows (n+1) is rotating around its any one adjacent braiding station
90 ° or 270 ° are rotated, makes crochet be arranged as the braiding matrix B of (n+1) row n row；
Step 3)：Positioned at the 1st row of square formation M braiding station rotate, drive braiding station both sides crochet around the braiding station just
After turning or inverting 180 °, the braiding station rotation direction of the 2nd row is with the braiding station rotation direction of the 1st row conversely, driving braiding station two
Around 180 ° of the braiding station rotating in same direction, after such recirculation 2 times, each crochet returns to the initial bit of this step to the crochet of side
Put, complete a partial circulating；Then, the braiding station of the 2nd row and the 3rd row repeat above-mentioned partial circulating ... until (n-1) row and
After the above-mentioned partial circulating of line n braiding station repetition, each crochet returns to the initial position of this step, (n+1) the row n row for re-forming
Braiding matrix B；
Step 4)：Step 3) obtain (n+1) row n row braiding matrix B in each crochet according to step 2) identical road
Footpath, rotation direction retrieve step 1 conversely, the anglec of rotation is identical) the braiding matrix A that arranges of the n rows (n+1) of initial position, it is complete
Circulate into one；
Step 5)：Step 1 is repeated several times)-step 4), complete braiding.
2. a kind of 3 D weaving technique according to claim 1, it is characterised in that：The step 2) in, each crochet point
Do not rotate around its any one adjacent braiding station, rotation direction is to rotate forward or invert.
3. according to a kind of arbitrary described 3 D weaving technique of claim 1-2, it is characterised in that：The step 2) in, general side
Each braiding station element number in battle array M is mI, j, each the crochet element number by braiding matrix A is a, and wherein i, j are for just
Integer, in square formation M, as i=j, mI, jDrive aI, jAnd aI, j+1Around mI, jRotate；As i ＞ j, mI, jA is driven onlyI, jAround mI, j
Rotate；As i ＜ j, mI, jA is driven onlyI, j+1Around mI, jRotate.
4. according to a kind of arbitrary described 3 D weaving technique of claim 1-3, it is characterised in that：The step 1) in, rotate forward
Direction is clockwise or is counterclockwise.
5. the three dimensional fabric that prepared by 3 D weaving technique of the application as described in claim 1-4 is arbitrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610961466.7A CN106609417B (en) | 2016-11-04 | 2016-11-04 | A kind of 3 D weaving technique and three dimensional fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610961466.7A CN106609417B (en) | 2016-11-04 | 2016-11-04 | A kind of 3 D weaving technique and three dimensional fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106609417A true CN106609417A (en) | 2017-05-03 |
| CN106609417B CN106609417B (en) | 2018-07-13 |
Family
ID=58614788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610961466.7A Active CN106609417B (en) | 2016-11-04 | 2016-11-04 | A kind of 3 D weaving technique and three dimensional fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106609417B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108998888A (en) * | 2018-08-08 | 2018-12-14 | 天津工大航泰复合材料有限公司 | A kind of three dimensional knitting method and product of row-column transform variable cross-section preform |
| CN109440296A (en) * | 2018-11-28 | 2019-03-08 | 中国纺织科学研究院有限公司 | A kind of braiding station for three-dimensional automatic braiding apparatus |
| CN111254575A (en) * | 2019-12-31 | 2020-06-09 | 中国纺织科学研究院有限公司 | Three-dimensional filter screen weaving process and three-dimensional filter screen fabric |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090193961A1 (en) * | 2005-08-16 | 2009-08-06 | Jensen David W | Apparatus, System, and Method for Filamentary Composite Lattice Structure Manufacturing |
| CN101736518A (en) * | 2008-11-10 | 2010-06-16 | 阚玉华 | Rotary braiding machine |
| CN104005172A (en) * | 2014-05-26 | 2014-08-27 | 东华大学 | Preparation method of blended three-dimensional knitting fabricated part |
| CN105200654A (en) * | 2015-08-21 | 2015-12-30 | 河南科技大学 | Knitting technology for three-dimensional knitting composite material and adopted knitter |
| CN105401331A (en) * | 2015-12-04 | 2016-03-16 | 阚玉华 | Rotary process three-dimensional knitting platform capable of increasing number of carried yarns and knitting method thereof |
-
2016
- 2016-11-04 CN CN201610961466.7A patent/CN106609417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090193961A1 (en) * | 2005-08-16 | 2009-08-06 | Jensen David W | Apparatus, System, and Method for Filamentary Composite Lattice Structure Manufacturing |
| CN101736518A (en) * | 2008-11-10 | 2010-06-16 | 阚玉华 | Rotary braiding machine |
| CN104005172A (en) * | 2014-05-26 | 2014-08-27 | 东华大学 | Preparation method of blended three-dimensional knitting fabricated part |
| CN105200654A (en) * | 2015-08-21 | 2015-12-30 | 河南科技大学 | Knitting technology for three-dimensional knitting composite material and adopted knitter |
| CN105401331A (en) * | 2015-12-04 | 2016-03-16 | 阚玉华 | Rotary process three-dimensional knitting platform capable of increasing number of carried yarns and knitting method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108998888A (en) * | 2018-08-08 | 2018-12-14 | 天津工大航泰复合材料有限公司 | A kind of three dimensional knitting method and product of row-column transform variable cross-section preform |
| CN109440296A (en) * | 2018-11-28 | 2019-03-08 | 中国纺织科学研究院有限公司 | A kind of braiding station for three-dimensional automatic braiding apparatus |
| CN111254575A (en) * | 2019-12-31 | 2020-06-09 | 中国纺织科学研究院有限公司 | Three-dimensional filter screen weaving process and three-dimensional filter screen fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106609417B (en) | 2018-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106609417B (en) | A kind of 3 D weaving technique and three dimensional fabric | |
| EP0538481B1 (en) | Three-dimensional fabric for reinforcing irregularly functional composite material and method of manufacturing said fabric | |
| CN100370068C (en) | Capping three-dimensional fabric, and its knitting method | |
| EP2549004B1 (en) | Three-dimensional weave-molding method for composite material | |
| CN101487169B (en) | Three-dimensional full five-direction knitting preformed member and its knitting method | |
| CN201151798Y (en) | Three-dimensional fully five-direction woven preform and its weaving equipment | |
| JPS62250258A (en) | Knitted structure having complicated shape | |
| Mohamed | Three-dimensional textiles | |
| CN102505336A (en) | Preparation method of performing body with extendable cross section dimension | |
| CN104372522A (en) | Three-dimensional automatic knitting machine | |
| CN108138395A (en) | 3D woven preforms with channel | |
| CA2086940C (en) | Braid structure | |
| CN106987979B (en) | A kind of angle-interlock fabric and its method for weaving containing oblique yarn | |
| CN102560877A (en) | Weaving method for top sealing fabric | |
| US5346774A (en) | Fiber-reinforced composite structures, and methods of making same | |
| CN109914031B (en) | Net shape preparation method of three-dimensional high-pressure spray pipe preform | |
| CN102765490B (en) | Space tethered unfoldable covered surface system | |
| CN104762747B (en) | 3D-braided two-ply board type fiber hybrid prefabricated member and preparation method thereof | |
| JPS60259665A (en) | Three-dimensionally knitted composite shaped material and its production | |
| CN102051764B (en) | Three-dimensionally braiding method of indented pyramid sleeve fabric | |
| CN206799859U (en) | A kind of overall rudder enhancing fabric | |
| CN106987978B (en) | A kind of entirety rudder enhancing fabric and its weaving method | |
| Sun et al. | The study on 3D weaving method for tubular fabric | |
| CN206143389U (en) | Multilayer tying woven fabric | |
| CN109825932B (en) | Cylindrical hollow wiredrawing cloth, weaving method thereof and double-faced double-shuttle oblique warp loom |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 3, Yan Jing Li Zhongjie, Chaoyang District, Beijing, Beijing Applicant after: China Textile Science Research Institute Co., Ltd. Address before: No. 3, Yan Jing Li Zhongjie, Chaoyang District, Beijing, Beijing Applicant before: Chinese Textile Scientific Research Inst. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |