JP2000303310A - Weaving of three-dimensional fiber texture, apparatus therefor and woven filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To weave a three-dimensional fiber texture and obtain a filter containing many spaces in the texture and having excellent quality by setting plural adjacent sections as a carrier-moving space and rotating a carrier in the carrier space unit. SOLUTION: Carriers 1-3 arranged in the form of a matrix are moved in lateral and longitudinal directions to weave a three-dimensional fiber texture. In the above process, four sections adjacent to each other are set as a carrier moving space 10 and carriers 1-3 are rotated in the carrier space unit. Preferably, the next carrier moving space 11 is set by shifting the carrier moving space 10 by one section in longitudinal and lateral directions and the rotating operation is alternately carried out in the carrier moving space 10 and the next carrier moving space 11 to weave a three-dimensional fiber texture. Preferably, woven layers 21g, 22g are formed interposing a definite space in the longitudinal direction of fiber and the yarns 21p and 22p crossing in the layers 21g and 22g are bonded or welded with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for weaving a three-dimensional fiber structure, the structure of a weaving apparatus, and a three-dimensional fiber filter formed by the weaving method and apparatus.

[0002]

2. Description of the Related Art Conventionally, there has been known a method and an apparatus for forming fibers into a three-dimensional tissue by connecting fibers to carriers arranged in a matrix and moving the carriers in rows and columns. Has become. When forming a three-dimensional tissue body by such a method or the like, weaving is performed while beating the interwoven part with a comb-shaped or rod-shaped reed body on the way, and the tissue body formed has a high weaving density. there were.

[0003]

However, in the above-mentioned prior art, the structure of the formed three-dimensional structure is dense, so that it is suitable for use as a reinforcing member such as plastic or metal. However, it requires a lot of space in the tissue, and is unsuitable for other uses such as a filter which needs to allow a liquid or gas to pass through the tissue.

[0004]

The above is the problem to be solved by the present invention. Next, means for solving the problem will be described. That is, in a method of weaving a three-dimensional fiber tissue body by moving the carriers arranged in a matrix in the row and column directions, four adjacent sections are set as a carrier moving space, and the carrier is rotated in units of the carrier space. To weave a three-dimensional fiber structure.

Further, a next carrier moving space in which the carrier moving space is displaced by one section in the row and column directions is set, and the rotation operation is alternately performed on the carrier moving space and the next carrier moving space. Weave the fibrous structure.

A woven layer is formed at regular intervals in the longitudinal direction of the fiber, and the yarns crossed by the woven layer are bonded or welded to each other to fabricate the filter by the method according to claim 1 or 2. To achieve.

A carrier drive unit for moving the bobbin-mounted carriers arranged in a matrix in the row and column directions, a frame drive unit for similarly disposing the bobbin-mounted carriers in the matrix shape and moved in the row and column directions, and a woven tertiary The weaving device of the three-dimensional fiber structure is constituted by the lifting device of the original fiber structure.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a matrix diagram showing the arrangement of the carriers, FIGS. 2 (1) to (6) are matrix diagrams showing the rotational movement state of the carriers by the first layer operation, and FIG.
(1) to (4) are matrix diagrams showing the rotational movement state of the carrier by the second layer operation, FIG. 4 is a three-dimensional view showing the state of the fibers subjected to the first and second layer operations, and FIG. 5 is the carrier movement space Is a three-dimensional view showing the state of fibers obtained by performing the first and second layer operations on a matrix having a plurality of, a schematic view of a weaving apparatus, FIG. 7 is a side sectional view of a carrier and a bobbin, and FIG. FIG. 9 is a perspective view showing a fitted state of the top, FIG. 10 is a perspective view showing a sliding configuration of the top, FIG.
1 is a matrix diagram of a carrier driving unit and a frame driving unit, and FIG. 12 is a cross-sectional view of an organization including a laser oscillator.

First, a basic operation relating to a method for weaving a three-dimensional tissue according to the present invention will be described with reference to FIGS. 1 to 3, carriers 1, 2, and 3 on which bobbins are placed are arranged on a matrix of three rows and three columns arranged in a two-dimensional direction. Each carrier 1, 2,
It is considered that the fiber is drawn out from the bobbin No. 3 to the back side of the paper surface, and its ends are fixed on the matrix having the same arrangement. Here, first, attention is paid to three carriers 1, 2, and 3 in the carrier moving space 10 surrounded by a dashed line. The carrier moving space 10 includes four adjacent sections, and includes a section having three carriers 1, 2 and 3 and one blank section. The matrix allows rows and columns to be moved independently of each other, and first moves columns L1 and L3 downward. As a result, the matrix is in the state shown in FIG. (In FIG. 2, the carrier movement space 10
Only the carriers 1, 2, and 3 in FIG. Here, the column movement unit is one frame unit in the vertical direction, and the row movement unit is one frame unit in the horizontal direction.

Next, the rows C1 and C3 are moved to the left. As a result, the state shown in FIG. 2 (2) is obtained. Further, the row L2 is moved upward. As a result, a state shown in FIG. 2 (3) is obtained. By the above operation, in the state of the matrix diagram 2 (3), the carriers 1, 2, and 3 in the carrier moving space 10 have moved one by one counterclockwise around the rotation center 10a from the state of FIG. It will be.

Next, the row C2 is moved rightward, the columns L1 and L3 are moved downward, and the rows C1 and C3 are moved leftward. This operation brings the matrix into the state shown in FIG. That is, the carriers 1, 2, and 3 have moved one frame at a time in the counterclockwise direction around the rotation center 10a from the state shown in FIG.

Subsequently, the column L2 is moved upward, the row C2 is moved rightward, and the columns L1 and L3 are moved downward. By this operation, the matrix is in the state shown in FIG. That is,
The carriers 1, 2, and 3 have moved one frame at a time counterclockwise around the rotation center 10a from the state shown in FIG.

Finally, the rows C1 and C3 are moved leftward, the column L2 is moved upward, and the row C2 is moved rightward. By this operation, the matrix is in the state shown in FIG. That is, the carriers 1, 2, and 3 have moved one frame at a time counterclockwise around the rotation center 10a from the state of FIG. 2 (5). In other words, the carriers 1, 2, and 3 in the carrier moving space 10 have rotated once around the rotation center 10a from the state of FIG. 1 in the above-described 12 row and column operations. The above operation is referred to as a first operation.

Next, attention is paid to three carriers 1, 2, and 3 in the next carrier moving space 11 surrounded by a dashed line in FIG. The next carrier moving space 11 is similarly composed of a section having three carriers 1, 2 and 3 and one blank section. The carrier moving space 10 is divided into one section to the right in the row direction and one section in the column direction. It is composed of positions shifted by sections. First, the columns L1 and L3 are moved upward, and the rows C1 and C3
To the right and the row L2 downward. This operation brings the matrix into the state shown in FIG. In other words, the carriers 1, 2, and 3 in the carrier moving space 11 have moved one by one counterclockwise around the rotation center 11a from the state of FIG.

Next, the row C2 is moved leftward, the columns L1 and L3 are moved upward, and the rows C1 and C3 are moved rightward. With this operation, the matrix is in the state shown in FIG. That is, the carriers 1, 2, and 3 have moved one frame at a time counterclockwise around the rotation center 11a from the state shown in FIG. 3A.

Next, the column L2 is directed downward, the row C2 is directed leftward,
The rows L1 and L3 are sequentially moved upward. By this operation, the matrix is in the state shown in FIG. That is, the carriers 1, 2, and 3 have moved one frame at a time counterclockwise around the rotation center 11a from the state shown in FIG. Finally, the rows C1 and C3 are moved rightward, and the column L2
Is moved downward and the row C2 is moved leftward in order, so that the carriers 1, 2, and 3 of the next carrier moving space 11 have rotated one turn counterclockwise around the rotation center 11a from the state of FIG. The state shown in FIG. And
The above operation is called a second-layer operation. This second-layer operation is performed after the first-layer operation is completed and a certain amount of fibers are drawn to the back side of the paper. After the second-layer operation is completed, a certain amount of fibers is further drawn to the back side of the paper. Repeat the first operation again.

The effects obtained when the first-layer operation and the second-layer operation described above are continuously performed will be described. Here, as shown in FIG. 4, the matrix of 3 rows and 3 columns is replaced with a lattice, and the nodes are considered as carriers 1, 2, and 3. The figure shows an initial lattice 21, a first-layer lattice 22, and a second-layer lattice 23 in order from the top. The initial lattice 21 is an end of a fiber drawn from the carriers 1, 2, and 3 in FIG. Carriers 1, 2, and 3 on a matrix with fixed parts
3, the first-layer lattice 22 represents the carriers 1, 2 and 3 at the time when the first-layer operation is completed, and the second-layer lattice 23 is represented by the carrier at the time when the second-layer operation is completed. 1
-Represents 2/3. The carriers 1, 2 and 3 are arranged at positions corresponding to each other on the initial / first-layer gratings 21 and 22, and the carriers 1 and 2 are provided on the first and second-layer gratings 22 and 23.
3 are arranged at positions corresponding to each other.
Then, in the initial state, the initial / first-layer grid 21.
The fibers connecting the carriers 1, 2 and 3 are arranged substantially in parallel between 22 and the fibers connecting the carriers 1 and 2 are arranged in parallel between the first and second layer lattices 22 and 23. Have been.

First, by performing the above-described first-layer operation on the carrier moving space 10 including the carriers 1, 2, and 3 in the first-layer lattice 22, the carriers 1, 2, and 3 make one rotation in the counterclockwise direction. At this time, since the rotation operation is not performed in the initial lattice 21, the fibers between the initial lattice 21 and the first-layer lattice 22 intersect to form a node 21 p. Then, a single-layer woven layer 21g is formed between the initial lattice 21 and the first-layer lattice 22.

Next, in the second-layer grating 23, the carriers 1, 2, and 3 are moved counterclockwise by performing the above-described second-layer operation on the next carrier moving space 11 including the carriers 1, 2, and 3. Rotate. At this time, since the rotation operation is not performed on the first-layer grid 22, the fibers between the first-layer grid 22 and the second-layer grid 23 intersect to form a node 22p. A second-layer woven layer 22g is formed between the first-layer grid 22 and the second-layer grid 23.

By the above operation, the carriers 1, 2,.
The tissue bodies 21g and 22g are laminated by the fibers connecting 3 to form a three-dimensional structure. In the above embodiment, the case where one carrier moving space 10 is present in the initial grating 21 has been described. However, the size of the initial grating 21 is expanded so that the plurality of carrier moving spaces 10 are spread in a plane. In this case, a three-dimensional structure is formed by rotating the carriers 1, 2, and 3 by performing the same operation. FIG. 5 shows an embodiment in which the initial grating 21 includes four carrier moving spaces 10.

A method for weaving a three-dimensional fiber structure according to the present invention, which applies the first-layer operation and the second-layer operation to the carriers 1, 2, and 3 described above, will be described. FIG. 6 shows a schematic diagram of the overall configuration of the weaving device. The weaving device includes a carrier driving unit 5, a frame driving unit 6, a lifting device 7, and the like.

In the carrier driving section 5, carriers 51 on which bobbins 50 are placed are arranged in a matrix. As shown in FIGS. 7 and 8, the carrier 51 is provided with a cross-shaped slide groove 51a on the bottom surface. Slide groove 51
a is formed to have a substantially T-shaped cross section, and is configured to fit into a pin 5b fixed to a support plate 5a of the carrier driving unit 5. With this configuration, the carrier 51 can be integrally moved with the bobbin 50 mounted thereon in the row and column directions on the support plate 5a.

On the other hand, the frame driving section 6 has an insertion hole 6 for the fiber 8.
The tops 61 having 1a are similarly arranged in a matrix. As shown in FIG. 9, the tops 61 have a substantially rectangular parallelepiped shape, and are formed with a slide groove 62a in a row direction and a protrusion 62b fitted to the slide groove 62a on the side.
Similarly, the slide groove 63a in the row direction and the slide groove 63
A protrusion 63b that fits into a is formed. And
Are assembled by fitting the slide grooves 62a and 63a of the adjacent tops 61 and the protrusions 62b and 63b. Tops 61 having such a configuration
Are arranged in a matrix, so that the tops 61 in the row direction or the column direction can be integrally moved.

As shown in FIG. 10, slide plates 64 and 65 are provided at the ends of the tops 61 in the row direction. The slide plates 64 and 65 are alternately arranged in the column direction, and a plurality of slide plates 64 and 64 are provided.
.. (In FIG. 10, two slide plates 64, 64)
Is illustrated. ) Is fixedly provided with a drive plate 64a. Further, the racks 64 are arranged on the driving plate 64a in the row direction.
b, and the rack 64b is a pulse motor 6
4c meshes with the pinion 64d of the pulse motor 64c.
Are converted into reciprocating motions of the slide plates 64.

Similarly, a plurality of slide plates 65, 65,.
Is provided with a drive plate 65a. The driving plate 6
A rack 65b is arranged in the row direction on 5a, and the rack meshes with the pinion 65d of the pulse motor 65c to transmit the rotational drive of the pulse motor 65c to the slide plates 65.

With the above configuration, the pulse motor 64c
By driving the slide 65c, the slide plates 64, 65 can be slidably moved, whereby the frames 61, 61,... Of the frame drive unit 6 can be moved every other line (for example, even or odd lines only). It is. Also,
Similarly, a slide plate, a driving plate, a pulse motor, and the like (not shown) are provided for the tops 61 in the column direction, and the tops 61 can be moved in every other row. That is.

In the above configuration, the carriers 51 arranged in the carrier driving section 5 and the frames 61 arranged in the frame driving section 6 are arranged in a matrix as shown in FIG. Then, according to the shape of the three-dimensional fiber tissue body to be formed, the fiber supplied from the bobbin 50 of the necessary carrier 51 is appropriately passed through the insertion hole 61a of the corresponding top 61,
It is connected to the end plate 70 of the lifting device 7. The matrix configuration of the frame driving unit 6 does not necessarily have to be the same as the matrix configuration of the carrier driving unit 5.
One moving row and column may be secured.

A method for producing a three-dimensional fiber structure in the weaving apparatus configured as described above will be described. First, the fiber is extended from the bobbin 50 of the carrier 51, penetrates the insertion hole 61 a of the corresponding top 61, and is connected to the corresponding position of the end plate 70. At this time, the bobbins 50 for supplying the fibers can be appropriately selected according to the shape of the tissue body to be formed. However, the bobbins 50 are continuously arranged in the row and column directions for each of the carrier moving spaces 10 described above. That is, a plurality of carrier moving spaces 10 are arranged in the carrier driving section 5 in the row direction and the column direction.

Then, the end plate 70 is moved by the pulling device 7.
Is moved in the direction opposite to the frame driving unit 6 side, and the first-layer operation is simultaneously performed in the carrier driving unit 5 and the frame driving unit 6. In other words, in the frame drive unit 6, by performing the operation in the row direction of every other row and the column direction of every other column by the above-described slide drive configuration,
The first operation is performed on the plurality of carrier moving spaces 10 all at once. At this time, also in the carrier driving unit 5, a row direction in every other row is similarly set by a driving configuration (not shown).
In addition, the operation in the column direction can be performed every other row, and the slide movement synchronized with the slide movement of the frame drive unit 6 is performed. By this operation, the number of nodes 21p, 21p,... Equal to the number of the carrier moving spaces 10 is formed in the fibers between the top driving unit 6 and the end plate 70, and a single-layer weave layer 21g is formed. At this time, since the carrier driving unit 5 and the frame driving unit 6 move synchronously, no node is formed between them.

Subsequently, while the end plate 70 is moved by the pulling device 7, the carrier driving unit 5 and the frame driving unit 6 simultaneously perform the second-layer operation. As a result, a second-layer woven layer 22g is formed between the frame driving section 6 and the end plate 70, following the first-layer woven layer 21g formed by the first-layer operation. Thereafter, by repeatedly performing the above-described first-layer operation and second-layer operation, a first-layer weaving layer 21g and a second-layer weaving layer 22g are sequentially and repeatedly formed between the top driving unit 6 and the end plate 70. In this way, a three-dimensional fibrous structure is formed.

Then, a single-layer woven layer 21g is formed,
When the nodes 21p are formed, the fibers are joined to each other at the node 21p by bonding or welding. The joining of the nodes is performed by irradiating a laser beam from two laser oscillators 9. That is, as shown in FIG.
9 is arranged so as to be movable in the row direction and the column direction of the tissue to be formed by the feed motors 91, and is configured to be rotatable on a plane including the cross section of the tissue. Thus, the irradiation directions of the two laser oscillators 9 are controlled to join the nodes 21p. Thus, only the target node 21p is irradiated with the laser so that the influence on other fibers and nodes can be avoided.

The outputs of the two laser oscillators 9.9 can be controlled in accordance with the distance from the laser oscillators 9.9 to the nodes, and the outputs of the two laser oscillators 9.9 can be controlled. Since the output is controlled by the sum of the above, an efficient joining process can be performed without using extra energy. The fiber material is stainless wire, copper wire,
Various materials such as a nickel wire, a nylon thread, and a polyester fiber are used, and the output is controlled according to the material. In addition, in advance to metal fibers,
It is also possible to code the solder powder and the flux, etc., and it is also possible to perform welding by using a glue material in the case of a chemical fiber and by using formic acid or the like in the case of nylon or the like.

Then, the nodes 21p of the first weave layer 21g
When the second woven layer 22g is formed after the joining of
The bonding step is performed in the same manner as in 2p, and a tissue body is sequentially formed. Further, the above-mentioned joining step is for a node formed inside the cross section of the tissue body. However, an outer frame is disposed on the outermost layer of the tissue body, and the outermost layer of the tissue body formed on the outer frame portion is provided. Can be joined to the outer frame by bonding, welding, or the like, whereby the outer shape of the formed tissue can be held, and the joining at each node can be omitted. In addition, when joining of each node is performed by welding, it can be efficiently performed even by performing spot welding.

The three-dimensional fiber tissue body formed by the above operation has a space formed between the fibers, and can be used for various uses as a filter. Further, since the formed three-dimensional fiber tissue body has a large surface area, the fibers constituting the three-dimensional fiber tissue body are constituted by members having a catalytic action, so that the three-dimensional fiber tissue body is used as a catalyst having a high efficiency and effect. be able to. The lifting device 7
By controlling the moving speed of the end plate 70 and the sliding moving speed in the frame drive unit 5, the set angle of the tissue can be freely changed. As a result, it is possible to control the magnitude of the filtering ability as a property of the filter and to adjust the strength of the filter itself. Also,
The first-layer operation and the second-layer operation are performed when the carriers 1, 2, and 3 in FIGS. 1 to 3 are rotated, for example, 180 degrees around the rotation center 10 a or the rotation center 11 a (from the state shown in FIG. 1). By moving to the operation of the next layer at the time shown in FIG. 2 (4) or FIG. 3 (2)), the fiber orientation of the formed three-dimensional fiber tissue can be changed. . If the timing to move to the operation of the next layer is every 90 degrees, 90 degrees, 270 degrees, or 36 degrees
It may be 0 degrees or more and can be arbitrarily selected. Further, by arranging the resin impregnation step and the molding step between the end plate 70 and the frame driving section 6, it is possible to make the formed body into a composite or a component in the same shape. Thereby, a plurality of functions can be given to the three-dimensional fiber tissue body, the three-dimensional fiber tissue body can be formed as an ultra-lightweight structure, or a honeycomb structure can be formed.

As described above, the carrier driving unit 5
Since the position and quantity of the bobbins 50 for supplying fibers can be freely selected in units of the carrier moving space 10 in the above, three-dimensional fiber tissues (or filters) of various shapes and densities can be formed, and the method of forming the tissues It has a high degree of freedom.

[0036]

As described above, the present invention has the following advantages. That is, in a method of weaving a three-dimensional fiber tissue body by moving the carriers arranged in a matrix in the row and column directions, four adjacent sections are set as a carrier moving space, and the carrier is rotated in units of the carrier space. Since the three-dimensional fiber structure was woven in this manner, the rotation of the simple carrier having a small moving width formed the woven basis of the three-dimensional fiber structure.

Also, a next carrier moving space in which the carrier moving space is deviated by one section in the row and column directions is set, and the rotation operation is alternately performed on the carrier moving space and the next carrier moving space to obtain a three-dimensional image. Since the fibrous tissue was woven, it was possible to form a three-dimensional fibrous tissue by repeating independent simple unit operations, thereby facilitating control.

Further, a woven layer is formed at regular intervals in the longitudinal direction of the fiber, and the threads intersecting at the woven layer are bonded or welded to each other to form a filter by the method according to claim 1 or 2. Therefore, a space was formed in the woven layer, and the structure functioned sufficiently as a filter.

A carrier driving unit for moving the bobbin-mounted carriers arranged in a matrix in the row and column directions, a frame driving unit for similarly arranging the bobbin mounting carriers in the matrix and moving in the row and column directions, Since the weaving device of the three-dimensional fiber structure was constituted by the pulling-up device of the original fiber structure, there was no intersection of the fibers between the carrier driving unit and the frame driving unit, and the control was simplified. In addition, by controlling the moving speed of the pulling-up device and the sliding movement of the frame driving unit, the set angle of the tissue can be freely changed.

[Brief description of the drawings]

FIG. 1 is a matrix diagram showing the arrangement of carriers.

FIG. 2 is a matrix diagram showing a rotational movement state of a carrier by a first-layer operation.

FIG. 3 is a matrix diagram showing a rotational movement state of a carrier by a second-layer operation.

FIG. 4 is a three-dimensional view showing the state of the fibers subjected to the first and second layer operations.

FIG. 5 is a three-dimensional view showing the state of fibers obtained by performing first- and second-layer operations on a matrix having a plurality of carrier moving spaces.

FIG. 6 is a schematic view of a weaving device.

FIG. 7 is a side sectional view of a carrier and a bobbin.

FIG. 8 is a bottom perspective view of the carrier.

FIG. 9 is a perspective view showing a fitted state of a frame.

FIG. 10 is a perspective view showing a slide configuration of a frame.

FIG. 11 is a matrix diagram of a carrier driving unit and a frame driving unit.

FIG. 12 is a cross-sectional view of a tissue body including a laser oscillator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carrier 2 Carrier 3 Carrier 5 Carrier drive part 6 Frame drive part 7 Pull-up device 10 Carrier moving space 11th carrier moving space

Claims (4)

[Claims] 1. A method of weaving a three-dimensional fibrous structure by moving carriers arranged in a matrix in the row and column directions, wherein four adjacent sections are set as a carrier moving space, and the carrier is moved in units of the carrier space. Method of weaving a three-dimensional fiber tissue body by rotating the fabric. 2. Weaving by setting a next carrier moving space in which the carrier moving space is shifted by one section in the row and column directions, and performing the rotation operation alternately on the carrier moving space and the next carrier moving space. Method of weaving a three-dimensional fiber structure. 3. A filter woven by the method according to claim 1, wherein a woven layer is formed at regular intervals in the longitudinal direction of the fiber, and yarns crossed by the woven layer are bonded or welded. . 4. A tertiary woven fabric comprising: a carrier driving unit for moving the bobbin-mounted carriers arranged in a matrix in the row and column directions; A weaving device for a three-dimensional fibrous structure composed of an original fibrous structure lifting device.