CN106609417B - A kind of 3 D weaving technique and three dimensional fabric - Google Patents

Abstract

The invention belongs to weaving fields,Specifically,It is related to a kind of 3 D weaving technique and three dimensional fabric,The 3 D weaving technique is completed on three dimensional knitting machine,Three dimensional knitting machine includes that crochet and braiding are stood,Crochet is arranged in the braiding matrix A of n rows (n+1) row,The braiding station is arranged between same two crochet of a line arbitrary neighborhood,Braiding station is set to be arranged in n rank square formations M,Braiding station drives crochet around the rotation of braiding station around its axis rotation,Braiding is completed in the rule movement for controlling crochet,The weaving has the beneficial effect that by the three dimensional fabric that the weaving is knit out be the alternate multilayer fabric of transverse and longitudinal,Therefore one layer of fabric removal wherein,Other layers retained still have complete tissue,The overall performance of fabric is not influenced,And technique continuous production easy to implement,It can be applied to reenter formula aerospace craft,The preparation of the ablative composite material of long-range missile etc..

Description

A kind of 3 D weaving technique and three dimensional fabric

Technical field

The invention belongs to weaving fields, specifically, being related to a kind of 3 D weaving technique and three dimensional fabric.

Background technology

The anti-heat problem for solving to reenter formula is a particularly important technology for developing medium- and long-range missile.Due to ablation material The development and application of material, the warhead of intercontinental missile are possible to atmospheric reentry and hit target, manned spaceship and space shuttle It is possible to return to ground by planned orbit.

As ablator, it is desirable that heat of gasification is big, and 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 fibers with high intensity, high elastic modulus, such as carbon fiber, boron fibre, zirconium carbide fiber and oxygen Change aluminum fiber, the composite material made of them is excellent ablator, and become aerospace craft does not break the armor.Ablation material The solar heat protection that material may further be used to solve the positions such as rocket motor motor spindle, babinet interstage section, space shuttle nose cone, the leading edge of a wing is asked Topic.

The enhancing fabric for being presently used for ablative composite material is mainly D braided composites, is pre- by 3 D weaving A kind of advanced composite material of product enhancing has good interlayer performance, anti-yaw damper, ablation shape are uniform, ablation end face is smooth etc. Advantage is highly desirable inexpensive heat-resisting material.Wherein, it is required after the ablated surface of part aircraft falls off remaining compound Enhancing fabric in material has complete fabric tissue, neither influences aircraft surface beauty, nor affects on aircraft itself Structural behaviour, so, it is very necessary to develop a kind of new 3 D weaving technique.

In view of this special to propose the present invention.

Invention content

The technical problem to be solved in the present invention is to overcome the deficiencies of the prior art and provide a kind of 3 D weaving technique and three Dimensional fabric, the fabric gone out by the craft woven is when by ablation, wherein one layer of fabric removal, other layers remain to have complete Tissue, still maintain complete interleaved order, do not interfere with the overall performance of fabric.

In order to solve the above technical problems, the present invention is using the basic conception of technical solution：

A kind of 3 D weaving technique, the 3 D weaving technique are completed on three dimensional knitting machine, the three dimensional knitting machine packet It includes crochet and braiding is stood, crochet is arranged in the braiding matrix A of n rows (n+1) row, and braiding station setting is arbitrary in same a line Between two adjacent crochets, braiding station is made to be arranged in n rank square formation M, driven while braiding station is around its axis rotation crochet around The rotation of braiding station, the rule movement for controlling crochet are completed braiding, are included the following steps：

Step 1)：It is rotated positioned at the braiding station of the square formation M the 1st row, drives the crochet of braiding station both sides around the braiding It stands after 180 ° of rotating forward, is located at the braiding station rotation of the square formation M the 2nd row, drive the crochet of braiding station both sides around the braiding station 180 ° of reversion, after so recycling 2 times, each crochet returns to the initial position of this step, completes a partial circulating；Then, the 2nd The braiding station of row and the 3rd row repeats above-mentioned partial circulating ... until (n-1) is arranged and the n-th row braiding station repeats above-mentioned partial circulating Afterwards, each crochet returns to the initial position of this step, re-forms the braiding matrix A of n rows (n+1) row；

Step 2)：Each crochet in the braiding matrix A that n rows (n+1) arrange is rotating around its any one adjacent volume 90 ° or 270 ° of station rotation is knitted, crochet is made to be arranged as the braiding matrix B of (n+1) row n row；

Step 3)：It is rotated positioned at the braiding station of the 1st rows of square formation M, drives the crochet of braiding station both sides around the braiding It stands after 180 ° of forward or reverse, the braiding station rotation direction and the braiding station rotation direction of the 1st row of the 2nd row weave on the contrary, driving The crochet of both sides of standing rotates in same direction 180 ° around the braiding station, and so after recycling 2 times, each crochet returns to the initial of this step A partial circulating is completed in position；Then, the braiding station of the 2nd row and the 3rd row repeats above-mentioned partial circulating ... until (n-1) row After weaving the above-mentioned partial circulating of station repetition with line n, each crochet returns to the initial position of this step, (n+1) the row n re-formed The braiding matrix B of row；

Step 4)：Each crochet in (n+1) the row n row braiding matrix Bs that step 3) obtains is according to identical with step 2) Path, rotation direction retrieves the braiding matrix of n rows (n+1) row of step 1) initial position on the contrary, rotation angle is identical A completes a cycle；

Step 5)：Step 1)-step 4) is repeated several times, completes braiding.

In the step 2), for each crochet rotating around its any one adjacent braiding station rotation, rotation direction is to rotate forward Or reversion.

It is m by braiding station element number each of in square formation M in the step 2)_{I, j}, each braiding of matrix A will be woven Device element number is a, and wherein i, j are positive integer, in square formation M, as i=j, and m_{I, j}Drive a_{I, j}And a_{I, j+1}Around m_{I, j}Rotation；When When i ＞ j, m_{I, j}Only drive a_{I, j}Around m_{I, j}Rotation；As i ＜ j, m_{I, j}Only drive a_{I, j+1}Around m_{I, j}Rotation.

In the step 1), forward direction is clockwise or is counterclockwise.

The three dimensional fabric prepared using any one of the above 3 D weaving technique.

After adopting the above technical scheme, the present invention has 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, and the rotation by weaving station drives crochet regularity fortune It is dynamic, yarn is specially carried on crochet, crochet movement drives yarn movement to complete braiding, and the yarn per a line is one group, Yarn in every group is woven according to step 1), and n-layer fabric is formed after the completion of the step, and the flower of fabric ties similar plait, it (n+1) row n row braiding matrix Bs are formed according to step 2) yarn changing position afterwards, which interlocks, then with the yarn of each row Line is that the yarn in one group, every group is woven according to step 3), which makes fabric hang down in the thread layers formed with step 1) Histogram extends upward n-layer, and yarn playbacks according to step 4) then, so repeats down, and the fabric of formation replaces for transverse and longitudinal Multilayer fabric, other layers of therefore one layer of fabric removal wherein, reservation still have complete tissue, do not influence the whole of fabric Body performance, and technique continuous production easy to implement, it is multiple applied to the ablation for reentering formula aerospace craft, long-range missile etc. The preparation of condensation material.

The specific implementation mode of the present invention is described in further detail below in conjunction with the accompanying drawings.

Description of the drawings

A part of the attached drawing as the present invention, for providing further understanding of the invention, of the invention is schematic Embodiment and its explanation do not constitute inappropriate limitation of the present invention for explaining the present invention.Obviously, the accompanying drawings in the following description Only some embodiments to those skilled in the art without creative efforts, can be with Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings：

Fig. 1 is two weaving flow diagram of the embodiment of the present invention；

Fig. 2 is four weaving flow diagram of the embodiment of the present invention；

Fig. 3 is the weaving flow that 3 rows 4 row braiding matrix A becomes 4 rows 3 row braiding matrix B in the embodiment of the present invention five Schematic diagram；

In Fig. 4 embodiment of the present invention five 4 rows 3 row braiding matrix B become 3 rows 4 row braiding matrix A weaving flow 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：1, braiding station；2, crochet.

It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way It encloses, but is that those skilled in the art illustrate idea of the invention by referring to specific embodiments.

Specific implementation mode

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical solution in embodiment is clearly and completely described, following embodiment for illustrating 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 packet It includes crochet and braiding is stood, crochet is arranged in the braiding matrix A of n rows (n+1) row, and braiding station setting is arbitrary in same a line Between two adjacent crochets, braiding station is made to be arranged in n rank square formation M, driven while braiding station is around its axis rotation crochet around Braiding is completed in the rotation of braiding station, the rule movement for controlling crochet, it is characterised in that is included the following steps：

Step 1)：It is rotated positioned at the braiding station of the square formation M the 1st row, drives the crochet of braiding station both sides around the braiding It stands after 180 ° of rotating forward, is located at the braiding station rotation of the square formation M the 2nd row, drive the crochet of braiding station both sides around the braiding station 180 ° of reversion, after so recycling 2 times, each crochet returns to the initial position of this step, completes a partial circulating；Then, the 2nd The braiding station of row and the 3rd row repeats above-mentioned partial circulating ... until (n-1) is arranged and the n-th row braiding station repeats above-mentioned partial circulating Afterwards, each crochet returns to the initial position of this step, re-forms the braiding matrix A of n rows (n+1) row；

Step 2)：Each crochet in the braiding matrix A that n rows (n+1) arrange is rotating around its any one adjacent volume It knits station and rotates forward or invert 90 °, crochet is made to be arranged as the braiding matrix B of (n+1) row n row；

Step 3)：It is rotated positioned at the braiding station of the 1st rows of square formation M, drives the crochet of braiding station both sides around the braiding It stands after 180 ° of forward or reverse, the braiding station rotation direction and the braiding station rotation direction of the 1st row of the 2nd row weave on the contrary, driving The crochet of both sides of standing rotates in same direction 180 ° around the braiding station, and so after recycling 2 times, each crochet returns to the initial of this step A partial circulating is completed in position；Then, the braiding station of the 2nd row and the 3rd row repeats above-mentioned partial circulating ... until (n-1) row After weaving the above-mentioned partial circulating of station repetition with line n, each crochet returns to the initial position of this step, (n+1) the row n re-formed The braiding matrix B of row；

Step 4)：According to identical as the path of step 2), direction is rotated by 90 ° the braiding matrix B that step 3) obtains on the contrary, weight The braiding matrix A of new n rows (n+1) row for obtaining step 1) initial position, completes a cycle；

Step 5)：Step 1)-step 4) is repeated several times, completes braiding.

Wherein, in the step 2), each crochet rotation direction and rotational angle follow occupy-place and evacuation principle：Any one A braiding station is in four, upper and lower, left and right position there are four vacancy, and each vacancy only allows a crochet occupy-place, when this By after a crochet occupy-place, other crochets then avoid the position for position, and each formatter is rotated around its adjacent establishment station Carry out occupy-place.

Further, each formatter rotates 90 ° of either 270 ° of progress occupy-places around its adjacent establishment station.

Further, it is optimal that each formatter rotates 90 ° around its adjacent establishment station, because being compiled in the change procedure The route for knitting device traveling is most short, more saves the braiding time.

Further, it is m by braiding station element number each of in square formation M in the step 2)_{I, j}, matrix A will be woven Each crochet element number be a, wherein i, j are positive integer, braiding station m in square formation M_1,1Rotation drive its both sides volume Knit device a_1,1And a_1,2It rotates simultaneously.

Further, in the step 2), in square formation M, as i=j, m_{I, j}Drive a_{I, j}And a_{I, j+1}Around m_{I, j}Rotation.

Further, as i=j, m_{I, j}Rotation direction it is identical.

Further, as i ＞ j, m_{I, j}Only drive a_{I, j}Around m_{I, j}Rotation.

Further, as i ＜ j, m_{I, j}Only drive a_{I, j+1}Around m_{I, j}Rotation.

Further, as i ＞ j and as i ＜ j, m_{I, j}Rotation direction with as i=j rotation direction it is opposite.

Wherein, in the step 1), forward direction is clockwise or is counterclockwise.

There is the good performance for resisting ablation according to three dimensional fabric prepared by the above method.

Rotation by weaving station drives the movement of crochet regularity, drives and carries the movement of yarn rule on crochet, compiles Knitting device movement drives yarn movement to complete braiding.Crochet is arranged as into the braiding matrix A of n rows (n+1) row, the yarn per a line Line is that the yarn in one group, every group is woven according to step 1), and n-layer fabric, the flower knot of fabric are formed after the completion of the step Similar plait, forms (n+1) row n column matrix B according to step 2) yarn changing position later, which interlocks, step 3) In again with the yarn of each row be one group, every group in yarn woven according to step 3), the process make fabric with step 1) the thread layers Vertical Square formed extends upward n-layer, and yarn playbacks according to step 4) then, so repeats down, is formed Fabric be the alternate multilayer fabric of transverse and longitudinal, other layers of therefore one layer of fabric removal wherein, reservation still have complete group Knit, do not influence the overall performance of fabric, and technique continuous production easy to implement, 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 packet It includes crochet and braiding is stood, crochet is arranged in the braiding matrix A of n rows (n+1) row, and braiding station setting is arbitrary in same a line Between adjacent two crochet, braiding station is made to be arranged in n rank square formation M, braiding station drives crochet same around braiding station around its axis rotation To rotation, braiding is completed in the rule movement for controlling crochet.

It is illustrated below with weaving the 2 rank square formation M that station is arranged in：

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 in crochet On, the rotation of braiding station drives crochet to move and then yarn movement is driven to realize that braiding, crochet are arranged in the braiding of 2 rows 3 row Matrix A, each crochet are numbered as a_{I, j}(crochet for being expressed as the i-th row jth row), braiding station are arranged in same a line Between two crochet of arbitrary neighborhood, braiding station element number is m each of in 2 rank the square formation M, square formation M that braiding station is arranged in_{I, j} (the braiding station for indicating the i-th row jth row), i, j are positive integer, form the arrangement mode as shown in Fig. 1 (1).

Steps are as follows for a kind of braiding of 3 D weaving technique：

Step 1)：

(1) as shown in Fig. 1 (1), positioned at the braiding station m of the 1st row of square formation M_1,1With braiding station m_2,1Simultaneously according to counterclockwise Rotation, braiding station m_1,1Pivoting drives the crochet a of its both sides_1,1With crochet a_1,2180 ° are rotated counterclockwise, crochet is made a_1,1With crochet a_1,2Exchange position, braiding station m_2,1Pivoting drives the crochet a of its both sides_2,1With crochet a_2,2Inverse time Needle rotates 180 °, makes crochet a_2,1With crochet a_2,2Position is exchanged, the arrangement mode as shown in Fig. 1 (2) is formed；

(2) as shown in Fig. 1 (2), positioned at the braiding station m of the 2nd row of square formation M_1,2With braiding station m_2,2Simultaneously according to clockwise Rotation, braiding station m_1,2Pivoting drives the crochet a of its both sides_1,1With crochet a_1,3180 ° are rotated clockwise, crochet is made a_1,1With crochet a_1,3Exchange position, braiding station m_2,2Rotation drives the crochet a of its both sides_2,1With crochet a_2,3Turn clockwise It is 180 ° dynamic, make crochet a_2,1With crochet a_2,3Position is exchanged, the arrangement mode as shown in Fig. 1 (3) is formed；

(3) as shown in Fig. 1 (3), positioned at the braiding station m of the 1st row of square formation M_1,1With braiding station m_2,1The rotation of (1) is repeated, I.e. simultaneously according to rotation counterclockwise, braiding station m_1,1Pivoting drives crochet a_1,2With crochet a_1,3It rotates counterclockwise 180 °, make crochet a_1,2With crochet a_1,3Position is exchanged, while weaving station m_2,1It is rotated counterclockwise around axis, drives crochet a_2,2 With crochet a_2,3180 ° are rotated counterclockwise, crochet a is made_2,2With crochet a_2,3Position is exchanged, is formed and is arranged as shown in figure (4) Row mode；

(4) as shown in Fig. 1 (4), positioned at the braiding station m of the 2nd row of square formation M_1,2With braiding station m_2,2The rotation of (2) is repeated, I.e. simultaneously according to rotating clockwise, station m is woven_1,2180 ° of rotation is rotated clockwise, the crochet a of its both sides is driven_1,2And braiding Device a_1,1180 ° are rotated clockwise, crochet a is made_1,2With crochet a_1,1Exchange position, braiding station m_2,2Rotate clockwise 180 ° of bands Move the crochet a of its both sides_2,2With crochet a_2,1180 ° are rotated clockwise, crochet a is made_2,2With crochet a_2,1Position is exchanged, Form the arrangement mode as shown in Fig. 1 (5)；

(5) as shown in Fig. 1 (5), positioned at the braiding station m of the 1st row of square formation M_1,1With braiding station m_2,1The rotation of (1) is repeated, I.e. simultaneously according to rotation counterclockwise, braiding station m_1,1180 ° are rotated counterclockwise, crochet a is driven_1,3With crochet a_1,1Turn counterclockwise It is 180 ° dynamic, make crochet a_1,3With crochet a_1,1Position is exchanged, while weaving station m_2,1180 ° are rotated counterclockwise, crochet is driven a_2,3With crochet a_2,1180 ° are rotated counterclockwise, crochet a is made_2,3With crochet a_2,1Position is exchanged, is formed as shown in figure (6) Arrangement mode；

(6) as shown in Fig. 1 (6), positioned at the braiding station m of the 2nd row of square formation M_1,2With braiding station m_2,2The rotation of (2) is repeated, I.e. simultaneously according to rotating clockwise, station m is woven_1,2180 ° are rotated clockwise, the crochet a of its both sides is driven_1,2With crochet a_1,3 180 ° are rotated clockwise, crochet a is made_1,2With crochet a_1,3Exchange position, braiding station m_2,2Rotate clockwise 180 ° drive its two The crochet a of side_2,2With crochet a_2,3180 ° are rotated clockwise, crochet a is made_2,2With crochet a_2,3Position is exchanged, is formed such as Arrangement mode shown in Fig. 1 (7), Fig. 1 (7) and Fig. 1 (1) indicate the same braiding matrix A, i.e., are grasped by above-mentioned repetitive cycling Make, each crochet has returned to the initial position of step 1)；

Step 2)：As shown in Fig. 1 (7), the braiding station m on square formation M leading diagonals_1,1With braiding station m_2,2Around axis up time Needle rotates 90 °, braiding station m_1,1Rotate clockwise 90 ° of crochet a for driving its both sides_1,1With crochet a_1,2Around braiding station m_1,1It is suitable Hour hands are rotated by 90 °, and make crochet a_1,1With crochet a_1,2Split m_1,1Upper and lower both sides, braiding station m_2,2Rotate clockwise 90 ° of drives The crochet a of its both sides_2,2With crochet a_2,3Around braiding station m_2,290 ° are rotated clockwise, crochet a is made_2,2With crochet a_2,3Point Set braiding station m_2,2Upper and lower both sides；Braiding station m positioned at square formation M leading diagonals both sides_2,1With braiding station m_1,2It is rotated counterclockwise around axis 90 °, braiding station m_2,1Rotation drives the crochet a on the left of it counterclockwise_2,1Turn 90 ° counterclockwise, braiding station m_1,2Rotate counterclockwise band Move the crochet a on the right side of it_1,3Turn 90 ° counterclockwise, so that crochet is arranged in the braiding matrix B of 3 rows 2 row, as shown in Fig. 1 (8)；

Step 3)：

(1) as shown in Fig. 1 (8), positioned at the braiding station m of the 1st row of the square formation M_1,1With braiding station m_1,2It is suitable around axis simultaneously Hour hands rotate 180 °, braiding station m_1,1Rotation drives the crochet a of its both sides_1,1With crochet a_1,2180 ° are rotated clockwise, is made a_1,1And a_1,2Exchange position；Braiding station m_1,2Rotate clockwise 180 ° of crochet a for driving its both sides_2,2With crochet a_1,3Up time Needle rotates 180 °, makes crochet a_2,2With crochet a_1,3Position is exchanged, the arrangement mode as shown in Fig. 1 (9) is formed；

(2) as shown in Fig. 1 (9), positioned at the braiding station m of the 2nd row of the square formation M_2,1With braiding station m_2,2Simultaneously according to inverse Hour hands rotate 180 °, braiding station m_2,1180 ° of crochet a for driving its both sides of rotation counterclockwise_1,1With crochet a_2,1Turn counterclockwise It is 180 ° dynamic, make crochet a_1,1With crochet a_2,1Exchange position；Braiding station m_2,2Rotate counterclockwise the crochet for driving its both sides a_2,3With crochet a_1,3180 ° are rotated counterclockwise, crochet a is made_2,3With crochet a_1,3Position is exchanged, is formed 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 the square formation M_1,1With braiding station m_1,2Repeat the step In the direction of (1) rotate, i.e., simultaneously according to rotating clockwise, braiding station m_1,1Rotate clockwise 180 ° of braidings for driving its both sides Device a_1,2With crochet a_2,1180 ° are rotated clockwise, crochet a is made_1,2With crochet a_2,1Exchange position；Braiding station m_1,2Clockwise Rotation drives the crochet a of its both sides_2,2With crochet a_2,3180 ° are rotated clockwise, crochet a is made_2,2With crochet a_2,3It exchanges 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 the square formation M_2,1With braiding station m_2,2Repeat the step In the direction of (2) rotate, i.e., simultaneously according to rotation counterclockwise, braiding station m_2,1Rotate counterclockwise 180 ° of braidings for driving its both sides Device a_1,1With crochet a_1,2180 ° are rotated counterclockwise, crochet a is made_1,1With crochet a_1,2Exchange position；Braiding station m_2,2Counterclockwise 180 ° of rotations of rotation drive the crochet a of its both sides_1,3With crochet a_2,2180 ° are rotated counterclockwise, crochet a is made_1,3And braiding Device a_2,2Position is exchanged, the arrangement mode as shown in Fig. 1 (12) is formed；

(5) as shown in Fig. 1 (12), positioned at the braiding station m of the 1st row of the square formation M_1,1With braiding station m_1,2Repeat the step In the direction of (1) rotate, i.e., simultaneously according to rotating clockwise, braiding station m_1,1Rotate clockwise 180 ° of braidings for driving its both sides Device a_2,1With crochet a_1,1180 ° are rotated clockwise, crochet a is made_2,1With crochet a_1,1Exchange position；Braiding station m_1,2Clockwise Drive 180 ° of crochet a for making its both sides_1,3With crochet a_2,3180 ° are rotated clockwise, crochet a is made_1,3With crochet a_2,3It hands 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 the square formation M_2,1With braiding station m_2,2Repeat the step In the direction of (2) rotate, i.e., simultaneously according to rotation counterclockwise, braiding station m_2,1Rotation drives the crochet a of its both sides_1,2And braiding Device a_2,1180 ° are rotated counterclockwise, crochet a is made_1,2With crochet a_2,1Exchange position；Station m is woven simultaneously_2,2It rotates counterclockwise 180 ° of crochet a for driving its both sides_2,3With crochet a_2,2180 ° are rotated counterclockwise, crochet a is made_2,3With crochet a_2,2It exchanges Position forms the arrangement mode as shown in Fig. 1 (14), and each crochet returns to the initial position of the step at this time；

Step 4)：As shown in Fig. 1 (14), the rotation direction at each braiding station of composition square formation M in step 4) is and step 2) rotation direction at corresponding braiding station is on the contrary, rotation angle is identical in；It is located at the braiding station on square formation M leading diagonals m_1,1With braiding station m_2,290 ° are rotated counterclockwise around axis, braiding station m_1,1Drive the crochet a of its both sides_1,1With crochet a_1,2Around volume Knit station m_1,1It is rotated by 90 ° counterclockwise, makes crochet a_1,1With crochet a_1,2Split m_1,1The left and right sides, braiding station m_2,2Drive its two The crochet a of side_2,2With crochet a_2,3Around braiding station m_2,2It is rotated by 90 ° counterclockwise, makes crochet a_2,2With crochet a_2,3It splits m_2,2The left and right sides；Braiding station m positioned at square formation M leading diagonals both sides_2,1With braiding station m_1,2It is rotated clockwise around axis, braiding station m_2,1Rotate clockwise the crochet a driven on the downside of it_2,1Turn 90 ° clockwise, makes crochet a_2,1Positioned at braiding station m_2,1Left side, Braiding station m_1,2Rotate clockwise the crochet a driven on the upside of it_1,3Turn 90 ° clockwise, makes crochet a_1,3Positioned at braiding station m_1,2 Right side, formed as Fig. 1 (15) arrangement mode, Fig. 1 (15) is identical as the arrangement mode of Fig. 1 (1) each crochet, each crochet Initial position is come back to, a cycle is completed；

Step 5)：Step 1)-step 4) is repeated, completion is knitted to form fabric.

Crochet is 6, each to carry a spinning, and 2 rows 3 row are lined up in six roots of sensation spinning, and one group of each behavior passes through step 1) two-layer fabrics, are knitted to form, the flower knot in every layer of fabric is similar to plait, then becomes 6 spinning according to step 2) and replaces The braiding matrix to form 3 rows 2 row is set, which makes the yarns interwoven in the two-layer fabrics being separated from each other, later again with each row It is one group, is woven according to step 3), so that each row is formed one layer of fabric, formed altogether two layers, step 1) and step 3) formation Tissue layer it is perpendicular, so that the yarns interwoven in step 1) and step 3), the tissue layer of formation is woven together due to step 2), Finally, by step 4) respectively spinning playback, a cycle is completed, so circulation is gone down, 6 one threads exist in the fabric of braiding structure In the intertexture of regularity, separation, interleaved order in fabric, after one layer of fabric removal therein, in addition still have completely for one layer Tissue, do not influence the overall performance of fabric, and technique continuous production easy to implement, can be applied 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, the structure for the fabric that in the present embodiment prepared by weaving.

It in industrial production, can be expanded as needed, expansion mode is outside to weave the mode that station is n rank square formations It expands.

Embodiment three：

The difference between the present embodiment and the second embodiment lies in that positioned at the braiding of the 1st row of square formation M in step 1) in the present embodiment Stand m_1,1With braiding station m_2,1Simultaneously according to rotating clockwise, later the braiding station rotation direction in each step with embodiment two-phase Answer the rotation direction at the braiding station of the corresponding position in step on the contrary, rotational angle is identical, completion is knitted to form and embodiment two The identical three dimensional fabric of structure.

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 are stood, and crochet is arranged in the braiding matrix A of n rows (n+1) row, and the braiding station is arranged in same a line arbitrary neighborhood two Between crochet, braiding station is made to be arranged in n rank square formation M, braiding station drives crochet to be rotate in same direction around braiding station around its axis rotation, Braiding is completed in the rule movement for controlling crochet.

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 in crochet On, the rotation of braiding station drives crochet to move and then yarn movement is driven to realize that braiding, crochet are arranged in the braiding of 3 rows 4 row Matrix A, each crochet are numbered as a_{I, j}(crochet for being expressed as the i-th row jth row), braiding station are arranged in same a line Between two crochet of arbitrary neighborhood, braiding station element number is m each of in 3 rank the square formation M, square formation M that braiding station is arranged in_{I, j} (the braiding station for indicating the i-th row jth row), i, j are positive integer, form the arrangement mode as shown in Fig. 2 (1).

Steps are as follows for a kind of braiding of 3 D weaving technique：

Step 1)：

The braiding station that square formation M the 1st is arranged carries out following partial circulatings with the braiding station that square formation M the 2nd is arranged, and steps are as follows：

A：The braiding station that square formation M the 1st is arranged rotates as follows with the braiding stations arranged square formation M the 2nd, and steps are as follows：

(1) as shown in Fig. 2 (1), positioned at the braiding station m of the 1st row of square formation M_1,1, braiding station m_2,1With braiding station m_3,1Simultaneously According to rotation counterclockwise, braiding station m_1,1Pivoting drives the crochet a of its both sides_1,1With crochet a_1,2It rotates counterclockwise 180 °, make crochet a_1,1With crochet a_1,2Exchange position；Braiding station m_2,1Pivoting drives the crochet a of its both sides_2,1With Crochet a_2,2180 ° are rotated counterclockwise, crochet a is made_2,1With crochet a_2,2Exchange position；Braiding station m_3,1Pivoting drives The crochet a of its both sides_3,1With crochet a_3,2180 ° are rotated counterclockwise, crochet a is made_3,1With crochet a_3,2Exchange position, shape At the arrangement mode as shown in Fig. 2 (2)；

(2) as shown in Fig. 2 (2), positioned at the braiding station m of the 2nd row of square formation M_1,2, braiding station m_2,2With braiding station m_3,2Simultaneously According to rotating clockwise, station m is woven_1,2Pivoting drives the crochet a of its both sides_1,1With crochet a_1,3It rotates clockwise 180 °, make crochet a_1,1With crochet a_1,3Exchange position；Braiding station m_2,2Rotation drives the crochet a of its both sides_2,1And braiding Device a_2,3180 ° are rotated clockwise, crochet a is made_2,1With crochet a_2,3Exchange position；Braiding station m_3,2Rotation drives its both sides Crochet a_3,1With crochet a_3,3180 ° are rotated clockwise, crochet a is made_3,1With crochet a_3,3Position is exchanged, such as Fig. 2 is formed (3) arrangement mode shown in；

B：The braiding station that the braiding station that square formation M the 1st is arranged is arranged with square formation M the 2nd repeats above-mentioned rotation and operates for the first time, and step is such as Under：

(3) as shown in Fig. 2 (3), positioned at the braiding station m of the 1st row of square formation M_1,1, braiding station m_2,1With braiding station m_3,1It repeats (1) rotation, i.e., simultaneously according to rotation counterclockwise, braiding station m_1,1Pivoting drives crochet a_1,2With crochet a_1,3Inverse time Needle rotates 180 °, makes crochet a_1,2With crochet a_1,3Exchange position；Station m is woven simultaneously_2,1It is rotated counterclockwise around axis, drives and compile Knit device a_2,2With crochet a_2,3180 ° are rotated counterclockwise, crochet a is made_2,2With crochet a_2,3Exchange position；Braiding station m_3,1Around axis It rotates counterclockwise, drives crochet a_3,2With crochet a_3,3180 ° are rotated counterclockwise, crochet a is made_3,2With crochet a_3,3It exchanges Position forms the arrangement mode as shown in Fig. 2 (4)；

(4) as shown in Fig. 2 (4), positioned at the braiding station m of the 2nd row of square formation M_1,2, braiding station m_2,2With braiding station m_3,2It repeats (2) rotation weaves station m that is, simultaneously according to rotating clockwise_1,2180 ° of rotation is rotated clockwise, the crochet of its both sides is driven a_1,2With crochet a_1,1180 ° are rotated clockwise, crochet a is made_1,2With crochet a_1,1Exchange position；Braiding station m_2,2Turn clockwise Move 180 ° of crochet a for driving its both sides_2,2With crochet a_2,1180 ° are rotated clockwise, crochet a is made_2,2With crochet a_2,1It hands over Change place；Braiding station m_3,2Rotate clockwise 180 ° of crochet a for driving its both sides_3,2With crochet a_3,1180 ° are rotated clockwise, Make crochet a_3,2With crochet a_3,1Position is exchanged, the arrangement mode as shown in Fig. 2 (5) is formed；

C：The braiding station that square formation M the 1st is arranged repeats above-mentioned rotation with the braiding stations arranged square formation M the 2nd and operates for the second time, specific to walk It is rapid as follows：

(5) as shown in Fig. 2 (5), positioned at the braiding station m of the 1st row of square formation M_1,1, braiding station m_2,1With braiding station m_3,1It repeats (1) rotation, i.e., simultaneously according to rotation counterclockwise, braiding station m_1,1180 ° are rotated counterclockwise, crochet a is driven_1,3And crochet a_1,1180 ° are rotated counterclockwise, crochet a is made_1,3With crochet a_1,1Exchange position；Station m is woven simultaneously_2,1180 ° are rotated counterclockwise, Drive crochet a_2,3With crochet a_2,1180 ° are rotated counterclockwise, crochet a is made_2,3With crochet a_2,1Exchange position；Braiding station m_3,1180 ° are rotated counterclockwise, crochet a is driven_3,3With crochet a_3,1180 ° are rotated counterclockwise, crochet a is made_3,3And crochet a_3,1Position is exchanged, the arrangement mode as shown in figure (6) is formed；

(6) as shown in Fig. 2 (6), positioned at the braiding station m of the 2nd row of square formation M_1,2, braiding station m_2,2With braiding station m_3,2It repeats (2) rotation weaves station m that is, simultaneously according to rotating clockwise_1,2180 ° are rotated clockwise, the crochet a of its both sides is driven_1,2 With crochet a_1,3180 ° are rotated clockwise, crochet a is made_1,2With crochet a_1,3Exchange position；Braiding station m_2,2It rotates clockwise 180 ° of crochet a for driving its both sides_2,2With crochet a_2,3180 ° are rotated clockwise, crochet a is made_2,2With crochet a_2,3It exchanges Position；Braiding station m_3,2Rotate clockwise 180 ° of crochet a for driving its both sides_3,2With crochet a_3,3180 ° are rotated clockwise, is made Crochet a_3,2With crochet a_3,3Position is exchanged, the arrangement mode as shown in Fig. 2 (7) is formed, Fig. 2 (7) and Fig. 2 (1) indicates same One braiding matrix A, i.e., operate, each crochet has returned to the initial position of step 1), the above process by above-mentioned repetitive cycling For a partial circulating；

The braiding station that square formation M the 2nd is arranged repeats above-mentioned partial circulating with the braiding station that square formation M the 3rd is arranged, and steps are as follows：

A：The braiding station that square formation M the 2nd is arranged rotates as follows with the braiding stations arranged square formation M the 3rd, and steps are as follows：

(1) as shown in Fig. 2 (7), positioned at the braiding station m of the 2nd row of square formation M_1,2With braiding station m_2,2With braiding station m_3,2Simultaneously According to rotation counterclockwise, braiding station m_1,2Pivoting drives the crochet a of its both sides_1,2With crochet a_1,3It rotates counterclockwise 180 °, make crochet a_1,2With crochet a_1,3Exchange position；Braiding station m_2,2Pivoting drives the crochet a of its both sides_2,2With Crochet a_2,3180 ° are rotated counterclockwise, crochet a is made_2,2With crochet a_2,3Exchange position；Braiding station m_3,2Pivoting drives The crochet a of its both sides_3,2With crochet a_3,3180 ° are rotated counterclockwise, crochet a is made_3,2With crochet a_3,3Exchange position, shape At the arrangement mode as shown in Fig. 2 (8)；

(2) as shown in Fig. 2 (8), positioned at the braiding station m of the 3rd row of square formation M_1,3, braiding station m_2,3With braiding station m_3,3Simultaneously According to rotating clockwise, station m is woven_1,3Pivoting drives the crochet a of its both sides_1,2With crochet a_{Isosorbide-5-Nitrae}It rotates clockwise 180 °, make crochet a_1,2With crochet a_{Isosorbide-5-Nitrae}Exchange position；Braiding station m_2,3Rotation drives the crochet a of its both sides_2,2And braiding Device a_2,4180 ° are rotated clockwise, crochet a is made_2,2With crochet a_2,4Exchange position；Knit station m_3,3Rotation drives the volume of its both sides Knit device a_3,2With crochet a_3,4180 ° are rotated clockwise, crochet a is made_3,2With crochet a_3,4Position is exchanged, such as Fig. 2 (9) is formed Shown in arrangement mode；

B：The braiding station that the braiding station that square formation M the 2nd is arranged is arranged with square formation M the 3rd repeats above-mentioned rotation and operates for the first time, and step is such as Under：

(3) as shown in Fig. 2 (9), positioned at the braiding station m of the 2nd row of square formation M_1,2, braiding station m_2,2With braiding station m_3,2It repeats (1) rotation, i.e., simultaneously according to rotation counterclockwise, braiding station m_1,2Pivoting drives crochet a_1,3With crochet a_{Isosorbide-5-Nitrae}Inverse time Needle rotates 180 °, makes crochet a_1,3With crochet a_{Isosorbide-5-Nitrae}Exchange position；Station m is woven simultaneously_2,2It is rotated counterclockwise around axis, drives and compile Knit device a_2,3With crochet a_2,4180 ° are rotated counterclockwise, crochet a is made_2,3With crochet a_2,4Exchange position；Braiding station m_3,2Around axis It rotates counterclockwise, drives crochet a_3,3With crochet a_3,4180 ° are rotated counterclockwise, crochet a is made_3,3With crochet a_3,4It exchanges Position forms the arrangement mode as shown in figure (10)；

(4) as shown in Fig. 2 (10), positioned at the braiding station m of the 3rd row of square formation M_1,3, braiding station m_2,3With braiding station m_3,3It repeats (2) rotation weaves station m that is, simultaneously according to rotating clockwise_1,3180 ° of rotation is rotated clockwise, the crochet of its both sides is driven a_1,3With crochet a_1,2180 ° are rotated clockwise, crochet a is made_1,3With crochet a_1,2Exchange position, braiding station m_2,3Turn clockwise Move 180 ° of crochet a for driving its both sides_2,3With crochet a_2,2180 ° are rotated clockwise, crochet a is made_2,3With crochet a_2,2It hands over Change place；Braiding station m_3,3Rotate clockwise 180 ° of crochet a for driving its both sides_3,3With crochet a_3,2180 ° are rotated clockwise, Make crochet a_3,3With crochet a_3,2Position is exchanged, the arrangement mode as shown in Fig. 2 (11) is formed；

C：The braiding station that square formation M the 2nd is arranged repeats above-mentioned rotation with the braiding stations arranged square formation M the 3rd and operates for the second time, and step is such as Under：

(5) as shown in Fig. 2 (11), positioned at the braiding station m of the 2nd row of square formation M_1,2, braiding station m_2,2With braiding station m_3,2It repeats (1) rotation, i.e., simultaneously according to rotation counterclockwise, braiding station m_1,2180 ° are rotated counterclockwise, crochet a is driven_{Isosorbide-5-Nitrae}And crochet a_1,2180 ° are rotated counterclockwise, crochet a is made_{Isosorbide-5-Nitrae}With crochet a_1,2Exchange position；Station m is woven simultaneously_2,2180 ° are rotated counterclockwise, Drive crochet a_2,4With crochet a_2,2180 ° are rotated counterclockwise, crochet a is made_2,4With crochet a_2,2Exchange position, braiding station m_3,2180 ° are rotated counterclockwise, crochet a is driven_3,4With crochet a_3,2180 ° are rotated counterclockwise, crochet a is made_3,4And crochet a_3,2Position is exchanged, the arrangement mode as shown in figure (12) is formed；

(6) as shown in Fig. 2 (12), positioned at the braiding station m of the 3rd row of square formation M_1,3, braiding station m_2,3With braiding station m_3,3It repeats (2) rotation weaves station m that is, simultaneously according to rotating clockwise_1,3180 ° are rotated clockwise, the crochet a of its both sides is driven_{Isosorbide-5-Nitrae} With crochet a_1,3180 ° are rotated clockwise, crochet a is made_{Isosorbide-5-Nitrae}With crochet a_1,3Exchange position；Braiding station m_2,3It rotates clockwise 180 ° of crochet a for driving its both sides_2,3With crochet a_2,4180 ° are rotated clockwise, crochet a is made_2,3With crochet a_2,4It exchanges Position；Braiding station m_3,3Rotate clockwise 180 ° of crochet a for driving its both sides_3,3With crochet a_3,4180 ° are rotated clockwise, is made Crochet a_3,3With crochet a_3,4Position is exchanged, the arrangement mode as shown in Fig. 2 (13) is formed, completes above-mentioned partial circulating；It obtains Fig. 2 (13) and Fig. 2 (1) indicate the braiding matrix A that same 3 row 4 arranges, i.e., operated by above-mentioned repetitive cycling, each crochet The initial position of step 1) is returned to；

Step 2)：The braiding matrix A that 3 rows 4 arrange made of being arranged by crochet is transformed to the braiding matrix B that 4 rows 3 arrange

As shown in Fig. 2 (13), crochet is arranged as the braiding matrix A of 3 rows 4 row, braiding station m_1,1It is rotated clockwise around axis 90 °, drive the crochet a of its both sides_1,1With crochet a_1,2Around braiding station m_1,190 ° are rotated clockwise, crochet a is made_1,1And volume Knit device a_1,2It is located at braiding station m_1,1Both sides up and down, braiding station m_2,1With braiding station m_3,190 ° are rotated counterclockwise rotating around axis Crochet a is driven respectively_2,1Around braiding station m_3,1It is rotated by 90 ° counterclockwise, makes crochet a_2,1With crochet a_3,1It is located at braiding Stand m_2,1With braiding station m_3,1Lower section；Braiding station m_1,2It is rotated by 90 ° counterclockwise and drives crochet a_1,3It is rotated by 90 ° counterclockwise, makes volume Knit device a_1,3Positioned at braiding station m_1,2Top, braiding station m_2,290 ° are rotated clockwise, crochet a is driven_2,290 ° are rotated clockwise, Make crochet a_2,2Positioned at braiding station m_2,2Top；Braiding station m_3,290 ° are rotated clockwise, the crochet a of its both sides is driven_3,2With Crochet a_3,390 ° are rotated clockwise, crochet a is made_3,2With crochet a_3,3It is located at braiding station m_3,2Both sides up and down；Braiding Stand m_1,390 ° are rotated counterclockwise, crochet a_{Isosorbide-5-Nitrae}90 ° are rotated counterclockwise, crochet a is made_{Isosorbide-5-Nitrae}Positioned at braiding station m_1,3Top, braiding Stand m_2,390 ° are rotated clockwise, crochet a is driven_2,3With crochet a_2,490 ° are rotated clockwise, crochet a is made_2,3And crochet a_2,4It is located at braiding station m_2,3Upper and lower both sides；Braiding station m_3,3Rotate clockwise 90 ° of drive crochet a_3,4It rotates clockwise 90 °, make crochet a_3,4Positioned at braiding station m_3,3Lower section, formed the arrangement mode as shown in Fig. 2 (14), after above-mentioned transformation, 3 The braiding matrix A that row 4 arranges is transformed to the braiding matrix B of 4 rows 3 row；

The transformation of the step need to meet occupy-place and evacuation principle：Any one braiding station around its surrounding it is upper and lower, There are four vacancy, each vacancy only allows a crochet occupy-place for left and right four positions, when the position is accounted for by a crochet Behind position, other crochets then avoid the position, and each formatter carries out occupy-place around its adjacent establishment station rotation, with the present embodiment Transformation rotated with the shortest scheme of operating path, i.e., each formatter only rotates 90 ° of progress around its adjacent establishment station Occupy-place is explained as follows：

In the step, each crochet can only rotate clockwise or counterclockwise 90 ° of occupy-places, as braiding station m_1,1It is clockwise around axis 90 ° of rotation, drives the crochet a of its both sides_1,1With crochet a_1,2Around braiding station m_1,190 ° are rotated clockwise, by braiding station m_1,1 Upper and lower two vacancy occupy, later due to occupy-place and evacuation principle, crochet a_2,1Cannot turn 90 ° clockwise and can only be around braiding Stand m_2,1It is rotated by 90 ° counterclockwise, crochet a_2,1Occupy braiding station m_2,1The vacancy of lower part, similarly, crochet a_3,1It can only be around braiding Stand m_3,190 ° are rotated counterclockwise, crochet a_3,1Occupy braiding station m_3,1The vacancy of lower part；Positioned at braiding station m_1,2The vacancy on top is only It can be by crochet a_1,3Rotate counterclockwise 90 ° or by crochet a_1,2Rotate clockwise 90 ° of occupy-places, but crochet a_1,2Turn To braiding station m_1,1Lower part, therefore weave station m_1,2It the vacancy on top can only be by crochet a_1,3Rotate counterclockwise 90 ° of occupy-places；It compiles Knit station m_1,2It the vacancy of lower part can be by crochet a_2,2Turn 90 ° clockwise or by crochet a_2,3Turn 90 ° counterclockwise, the present embodiment Middle crochet a_2,2Turn 90 ° clockwise and reaches braiding station m_2,2Top, (by crochet a_2,3The case where turning 90 ° counterclockwise also may be used It is all mutually other embodiment with, principle), braiding station m in the present embodiment_2,2It the vacancy of lower part can be by crochet a_2,3Up time Needle turns 90 ° or by crochet a_3,2Turn over 90 ° or by crochet a clockwise_3,390 ° are rotated counterclockwise, crochet a_2,3Clockwise It is embodiment five to turn 90 °, and principle is identical, and it is not described here in detail, braiding station m_3,2Upper and lower two vacancy can only be by crochet a_3,2With Crochet a_3,3Occupy-place, therefore the position can be crochet a_3,2With crochet a_3,3Turn 90 ° or simultaneously inverse time clockwise simultaneously Needle turns 90 ° of occupy-places；Braiding station m_1,3It the vacancy on top can only be by crochet a_{Isosorbide-5-Nitrae}Rotate counterclockwise 90 ° of occupy-places, braiding station m_3,3Lower part Position can only be by crochet a_3,4Turn 90 ° of occupy-places, braiding station m clockwise_2,3Two vacancy of upper and lower part can only be by weaving Device a_2,3With crochet a_2,4Rotate clockwise or counterclockwise 90 ° of occupy-places.

In above-mentioned conversion process, 90 ° of crochet is rotated around braiding station can also be by rotating backward 270 ° of arrival mesh Cursor position realizes variation of the braiding matrix A to braiding matrix B.

Step 3)：The braiding matrix B that step 2) obtains is proceeded as follows：

A：The braiding station and the braiding station of the 2nd rows of square formation M of the 1st rows of square formation M rotate as follows, and steps are as follows：

(1) as shown in Fig. 2 (14), positioned at the braiding station m of the 1st row of the square formation M_1,1, braiding station m_1,2With braiding station m_1,3 180 ° are rotated counterclockwise around axis simultaneously, braiding station m_1,1Rotation drives the crochet a of its both sides_1,1With crochet a_1,2Turn counterclockwise It is 180 ° dynamic, make a_1,1And a_1,2Exchange position；Braiding station m_1,2Rotate counterclockwise 180 ° of crochet a for driving its both sides_2,2And braiding Device a_1,3180 ° are rotated counterclockwise, crochet a is made_2,2With crochet a_1,3Exchange position；Braiding station m_1,3Rotate counterclockwise 180 ° of bands Move the crochet a of its both sides_{Isosorbide-5-Nitrae}With crochet a_2,3180 ° are rotated counterclockwise, crochet a is made_{Isosorbide-5-Nitrae}With crochet a_2,3Position is exchanged, 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 the square formation M_2,1, braiding station m_2,2With braiding station m_2,3 Simultaneously according to rotating clockwise 180 °, station m is woven_2,1Rotate clockwise 180 ° of crochet a for driving its both sides_1,1And crochet a_2,1180 ° are rotated clockwise, crochet a is made_1,1With crochet a_2,1Exchange position；Braiding station m_2,2Rotate clockwise drive its two The crochet a of side_1,3With crochet a_3,2180 ° are rotated clockwise, crochet a is made_1,3With crochet a_3,2Exchange position；Braiding station m_2,3Rotate clockwise the crochet a for driving its both sides_{Isosorbide-5-Nitrae}With crochet a_2,4180 ° are rotated clockwise, crochet a is made_{Isosorbide-5-Nitrae}And braiding Device a_2,4Position is exchanged, the arrangement mode as shown in Fig. 2 (16) is formed；

B：The braiding station of the 1st rows of square formation M repeats above-mentioned rotation with the braiding station of the 2nd rows of square formation M and operates for the first time, and step is such as Under：

(3) as shown in Fig. 2 (16), positioned at the braiding station m of the 1st row of the square formation M_1,1, braiding station m_1,2With braiding station m_1,3 The direction for repeating (1) in the step rotates, i.e., simultaneously according to rotation counterclockwise, braiding station m_1,1It rotates counterclockwise 180 ° and drives it The crochet a of both sides_1,2With crochet a_2,1180 ° are rotated counterclockwise, crochet a is made_1,2With crochet a_2,1Exchange position；Braiding Stand m_1,2Rotate counterclockwise the crochet a for driving its both sides_2,2With crochet a_3,2180 ° are rotated counterclockwise, crochet a is made_2,2And volume Knit device a_3,2Exchange position, braiding station m_1,3Rotate counterclockwise the crochet a for driving its both sides_2,3With crochet a_2,4It rotates counterclockwise 180 °, make crochet a_2,3With crochet a_2,4Position is exchanged, the arrangement mode as shown in Fig. 2 (17) is formed；

(4) as shown in Fig. 2 (17), positioned at the braiding station m of the 2nd row of the square formation M_2,1, braiding station m_2,2With braiding station m_2,3 The direction for repeating (2) in the step rotates, i.e., simultaneously according to rotating clockwise, weaves station m_2,1It rotates clockwise 180 ° and drives it The crochet a of both sides_1,1With crochet a_1,2180 ° are rotated clockwise, crochet a is made_1,1With crochet a_1,2Exchange position；Braiding Stand m_2,2Rotate clockwise the crochet a that 180 ° of rotations drive its both sides_1,3With crochet a_2,2180 ° are rotated clockwise, braiding is made Device a_1,3With crochet a_2,2Exchange position；Braiding station m_2,3Rotate clockwise the crochet a that 180 ° of rotations drive its both sides_2,3And volume Knit device a_{Isosorbide-5-Nitrae}180 ° are rotated clockwise, crochet a is made_2,3With crochet a_{Isosorbide-5-Nitrae}Position is exchanged, formation is arranged as shown in Fig. 2 (18) Mode；

C：The braiding station of the 1st rows of square formation M and the braiding station of the 2nd rows of square formation M repeat above-mentioned rotation and operate for the second time, and step is such as Under：

(5) as shown in Fig. 2 (18), positioned at the braiding station m of the 1st row of the square formation M_1,1, braiding station m_1,2With braiding station m_1,3 The direction for repeating (1) in the step rotates, i.e., simultaneously according to rotation counterclockwise, braiding station m_1,1It rotates clockwise 180 ° and drives it The crochet a of both sides_2,1With crochet a_1,1180 ° are rotated counterclockwise, crochet a is made_2,1 and crochet a_1,1Exchange position；Braiding Stand m_1,2It rotates counterclockwise and drives 180 ° of crochet a for making its both sides_1,3With crochet a_3,2180 ° are rotated counterclockwise, crochet is made a_1,3With crochet a_3,2Exchange position；Braiding station m_1,3It rotates counterclockwise and drives 180 ° of crochet a for making its both sides_2,4And crochet a_{Isosorbide-5-Nitrae}180 ° are rotated counterclockwise, crochet a is made_2,4With crochet a_{Isosorbide-5-Nitrae}Position is exchanged, the arrangement mode as shown in Fig. 2 (19) is formed；

(6) as shown in Fig. 2 (19), positioned at the braiding station m of the 2nd row of the square formation M_2,1, braiding station m_2,2With braiding station m_2,3 The direction for repeating (2) in the step rotates, i.e., simultaneously according to rotating clockwise, weaves station m_2,1Rotation drives the braiding of its both sides Device a_2,1With crochet a_1,2180 ° are rotated clockwise, crochet a is made_1,2With crochet a_2,1Exchange position；Station m is woven simultaneously_2,2It is suitable Hour hands rotate 180 ° of crochet a for driving its both sides_3,2With crochet a_2,2180 ° are rotated clockwise, crochet a is made_3,2And braiding Device a_2,2Exchange position；Station m is woven simultaneously_2,3Rotate clockwise 180 ° of crochet a for driving its both sides_2,3With crochet a_2,4Up time Needle rotates 180 °, makes crochet a_2,3With crochet a_2,4Position is exchanged, the arrangement mode as shown in Fig. 2 (20) is formed；

Above-mentioned steps are a partial circulating, and each crochet returns to the initial position of the step at this time；

The braiding station and the braiding station of the 3rd rows of square formation M of the 2nd rows of square formation M repeat above-mentioned partial circulating, and steps are as follows：

A：The braiding station and the braiding station of the 3rd rows of square formation M of the 2nd rows of square formation M rotate as follows, and steps are as follows：

(1) as shown in Fig. 2 (20), positioned at the braiding station m of the 2nd row of the square formation M_2,1, braiding station m_2,2With braiding station m_2,3 180 ° are rotated counterclockwise around axis simultaneously, braiding station m_2,1Rotation drives the crochet a of its both sides_1,2With crochet a_2,1Turn counterclockwise It is 180 ° dynamic, make crochet a_1,2With crochet a_2,1Exchange position；Braiding station m_2,2Rotate counterclockwise 180 ° of braidings for driving its both sides Device a_2,2With crochet a_3,2180 ° are rotated counterclockwise, crochet a is made_2,2With crochet a_3,2Exchange position, braiding station m_2,3Counterclockwise Rotate 180 ° of crochet a for driving its both sides_2,3With crochet a_2,4180 ° are rotated counterclockwise, crochet a is made_2,3With crochet a_2,4 Position is exchanged, the arrangement mode as shown in Fig. 2 (21) is formed；

(2) as shown in Fig. 2 (21), positioned at the braiding station m of the 3rd row of the square formation M_3,1, braiding station m_3,2With braiding station m_3,3 Simultaneously according to rotating clockwise 180 °, station m is woven_3,1Rotate clockwise 180 ° of crochet a for driving its both sides_1,2And crochet a_3,1180 ° are rotated clockwise, crochet a is made_1,2With crochet a_3,1Exchange position；Braiding station m_3,2Rotate clockwise drive its two The crochet a of side_2,2With crochet a_3,3180 ° are rotated clockwise, crochet a is made_2,2With crochet a_3,3Exchange position, braiding station m_3,3Rotate clockwise the crochet a for driving its both sides_2,3With crochet a_3,4180 ° are rotated clockwise, crochet a is made_2,3And braiding Device a_3,4Position is exchanged, the arrangement mode as shown in Fig. 2 (22) is formed；

B：The braiding station of the 2nd rows of square formation M repeats above-mentioned rotation with the braiding station of the 3rd rows of square formation M and operates for the first time, and step is such as Under：

(3) as shown in Fig. 2 (22), positioned at the braiding station m of the 2nd row of the square formation M_2,1, braiding station m_2,2With braiding station m_2,3 The direction for repeating (1) in the step rotates, i.e., simultaneously according to rotation counterclockwise, braiding station m_2,1It rotates counterclockwise 180 ° and drives it The crochet a of both sides_2,1With crochet a_3,1180 ° are rotated counterclockwise, crochet a is made_2,1With crochet a_3,1Exchange position；Braiding Stand m_2,2Rotate counterclockwise the crochet a for driving its both sides_3,2With crochet a_3,3180 ° are rotated counterclockwise, crochet a is made_3,2And volume Knit device a_3,3Exchange position, braiding station m_2,3Rotate counterclockwise the crochet a for driving its both sides_2,4With crochet a_3,4It rotates counterclockwise 180 °, make crochet a_2,4With crochet a_3,4Position is exchanged, the arrangement mode as shown in Fig. 2 (23) is formed；

(4) as shown in Fig. 2 (23), positioned at the braiding station m of the 3rd row of the square formation M_3,1, braiding station m_3,2With braiding station m_3,3 The direction for repeating (2) in the step rotates, i.e., simultaneously according to rotating clockwise, weaves station m_3,1It rotates clockwise 180 ° and drives it The crochet a of both sides_2,1With crochet a_1,2180 ° are rotated clockwise, crochet a is made_2,1With crochet a_1,2Exchange position；Braiding Stand m_3,2Rotate clockwise the crochet a that 180 ° of rotations drive its both sides_3,2With crochet a_2,2180 ° are rotated clockwise, braiding is made Device a_3,2With crochet a_2,2Exchange position；Braiding station m_3,3Rotate clockwise the crochet a that 180 ° of rotations drive its both sides_2,3And volume Knit device a_2,4180 ° are rotated clockwise, crochet a is made_2,3With crochet a_2,4Position is exchanged, formation is arranged as shown in Fig. 2 (24) Mode；

C：The braiding station of the 2nd rows of square formation M and the braiding station of the 3rd rows of square formation M repeat above-mentioned rotation and operate for the second time, and step is such as Under：

(5) as shown in Fig. 2 (24), positioned at the braiding station m of the 2nd row of the square formation M_2,1, braiding station m_2,2With braiding station m_2,3 The direction for repeating (1) in the step rotates, i.e., simultaneously according to rotation counterclockwise, braiding station m_2,1It rotates counterclockwise 180 ° and drives it The crochet a of both sides_3,1With crochet a_1,2180 ° are rotated counterclockwise, crochet a is made_3,1With crochet a_1,2Exchange position；Braiding Stand m_2,2It rotates counterclockwise and drives 180 ° of crochet a for making its both sides_3,3With crochet a_2,2180 ° are rotated counterclockwise, crochet is made a_3,3With crochet a_2,2Exchange position；Braiding station m_2,3It rotates counterclockwise and drives 180 ° of crochet a for making its both sides_3,4And crochet a_2,3180 ° are rotated counterclockwise, crochet a is made_2,3With crochet a_3,4Position is exchanged, the arrangement mode as shown in Fig. 2 (25) is formed；

(6) as shown in Fig. 2 (25), positioned at the braiding station m of the 3rd row of the square formation M_3,1, braiding station m_3,2With braiding station m_3,3 The direction for repeating (2) in the step rotates, i.e., simultaneously according to rotating clockwise, weaves station m_3,1Rotation drives the braiding of its both sides Device a_3,1With crochet a_2,1180 ° are rotated clockwise, crochet a is made_3,1With crochet a_2,1Exchange position；Station m is woven simultaneously_3,2It is suitable Hour hands rotate 180 ° of crochet a for driving its both sides_3,3With crochet a_3,2180 ° are rotated clockwise, crochet a is made_3,3And braiding Device a_3,2Position is exchanged, while weaving station m_3,3Rotate clockwise 180 ° of crochet a for driving its both sides_2,4With crochet a_3,4Up time Needle rotates 180 °, makes crochet a_2,4With crochet a_3,4Position is exchanged, the arrangement mode as shown in Fig. 2 (26) is formed, in completion Partial circulating is stated, each crochet returns to the initial position of the step at this time, obtains braiding matrix B, and Fig. 2 (26) and Fig. 2 (14) is Same matrix；

Step 4)：

In this step, as shown in Fig. 2 (26), 4 rows 3 row braiding matrix B in each crochet according to in step 2) respectively The path of crochet rotates backward, and rotational angle is constant, and the braiding matrix B that 4 rows 3 arrange is become the braiding matrix A that 3 rows 4 arrange As shown in Fig. 2 (27).

Step 5)：Step 1)-step 4) is repeated several times, completes braiding.

Wherein, in step 1), the rotation direction of each crochet is on the contrary, rotational angle is identical in each step, the fabric of gained Structure and the claimed fabric performance having the same of the present invention.

Wherein, in step 3), the rotation direction of each crochet is on the contrary, rotational angle is identical in each step, the fabric of gained Structure and the claimed fabric of the present invention also performance having the same.

Wherein, in step 1) and step 3), the 1st row can also be identical with the rotation direction of the 1st row in square formation M.

Embodiment five：

The present embodiment and example IV are distinguished as：In step 2), the braiding matrix A of 3 rows 4 row becomes the braiding of 4 rows 3 row The conversion process of matrix is, as shown in Fig. 3 (13), the braiding station for being located at square formation M leading diagonals position rotates forward, and drives its both sides Crochet rotates forward 90 °, is located at the braiding station reversion of angular position under leading diagonal, drives the crochet on the left of it to invert 90 °, position It is inverted in the braiding station of angular position on leading diagonal, drives the crochet on the right side of it to invert 90 °, obtain the volume of 4 rows 3 row Matrix B is knitted, such as Fig. 3 (14)；

As shown in Fig. 4 (26), the rotation direction Yu step 2) of each crochet on the contrary, rotational angle and step in step 4) 2) identical, transformation obtains the braiding matrix A of 3 rows 4 row, as the performance of 3 D weaving fabric that is obtained after Fig. 4 (27) transformation with The performance for the 3 D weaving fabric that example IV obtains is identical.

Wherein, the transformation of step 2) can be a variety of, as long as meeting each volume being located in the braiding matrix A of n rows (n+1) row It knits device to rotate forward or invert 90 ° rotating around its any one adjacent braiding station and meet occupy-place and evacuation principle, makes crochet It is arranged as the braiding matrix B of (n+1) row n row；The element occupy-place for the braiding matrix B that conversion process generates is different, still, should The purpose of transformation is the intertexture for realizing yarn, and final fabric construction and property are identical.

Wherein, forward direction is clockwise or counterclockwise.

The three-dimensional automatic knitting machine that patent 201310356337.1 may be used in above-mentioned weaving is completed.

Braiding station is expanded, the square formation M of braiding station composition is that 4 ranks, 5 ranks, 6 rank ... N ranks can be according to above-mentioned three It ties up weaving and prepares the claimed three dimensional fabric of the present invention.

The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to The equivalent embodiment of equivalent variations, it is right according to the technical essence of the invention as long as being the content without departing from technical solution of the present invention Any simple modification, equivalent change and modification made by above example, in the range of still falling within the present invention program.

Claims (6)

1. a kind of 3 D weaving technique, the 3 D weaving technique is completed on three dimensional knitting machine, and the three dimensional knitting machine includes Crochet and braiding are stood, and crochet is arranged in the braiding matrix A of n rows (n+1) row, and the braiding station is arranged in the arbitrary phase of same a line Between two adjacent crochets, so that braiding station is arranged in n rank square formation M, drive crochet around volume while braiding station is around its axis rotation Station rotation is knitted, braiding is completed in the rule movement for controlling crochet, it is characterised in that is included the following steps：

Step 1)：Positioned at the square formation M the 1st row braiding station rotate, drive braiding station both sides crochet around the braiding station just After turning 180 °, it is located at the braiding station rotation of the square formation M the 2nd row, the crochet of braiding station both sides is driven to be inverted around the braiding station 180 °, after so recycling 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 3rd row is until (n-1) is arranged after weaving the above-mentioned partial circulating of station repetition with the n-th row, respectively Crochet returns to the initial position of this step, re-forms the braiding matrix A of n rows (n+1) row；

Step 2)：Each crochet in the braiding matrix A that n rows (n+1) arrange is stood rotating around its any one adjacent braiding 90 ° or 270 ° of rotation makes crochet be arranged as the braiding matrix B of (n+1) row n row；

Step 3)：Positioned at the 1st rows 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 and the braiding station rotation direction of the 1st row of the 2nd row weave station two on the contrary, driving The crochet of side rotates in same direction 180 ° around the braiding station, and after so recycling 2 times, each crochet returns to the initial bit of this step It sets, completes 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 line n braiding station repeats above-mentioned partial circulating, each crochet returns to the initial position of this step, (n+1) the row n row re-formed Braiding matrix B；

Step 4)：Each crochet in (n+1) the row n row braiding matrix Bs that step 3) obtains is according to the identical road with step 2) Diameter, rotation direction retrieves the braiding matrix A of n rows (n+1) row of step 1) initial position on the contrary, rotation angle is identical, complete It is recycled at one；

Step 5)：Step 1)-step 4) is repeated several times, completes braiding.

2. a kind of 3 D weaving technique according to claim 1, it is characterised in that：In the step 2), each crochet point Not around its any one adjacent braiding station rotation, rotation direction is rotating forward or reversion.

3. according to a kind of any 3 D weaving techniques of claim 1-2, it is characterised in that：It, will be square in the step 2) Braiding station element number is m each of in battle array M_{I, j}, it is a by each crochet element number for weaving matrix A_{I, j}, wherein i, j are Positive integer, in square formation M, as i=j, m_{I, j}Drive a_{I, j}And a_{I, j+1}Around m_{I, j}Rotation；As i ＞ j, m_{I, j}Only drive a_{I, j}Around m_{I, j}Rotation；As i ＜ j, m_{I, j}Only drive a_{I, j+1}Around m_{I, j}Rotation.

4. according to a kind of any 3 D weaving techniques of claim 1-2, it is characterised in that：In the step 1), rotate forward Direction is clockwise or is counterclockwise.

5. a kind of 3 D weaving technique according to claim 3, it is characterised in that：In the step 1), forward direction is Clockwise or it is counterclockwise.

6. three dimensional fabric prepared by application 3 D weaving technique according to any one of claims 1 to 5.