JPH0415299B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention uses rods made of fiber-reinforced composite material and inserts weft rods from two directions orthogonal to a group of warp rods to create a three-dimensional fabric. The present invention relates to a high-density weaving method and device effective for weaving.

[Prior Art] The present inventor previously disclosed in Japanese Patent Application No. 63-245759 that fiber bundles are combined into rods by a matrix, and when these rods are used to weave a three-dimensional fabric, the above-mentioned rods are The present invention proposes a method and apparatus for holding a large number of rods in a parallel state as a group of longitudinal rods, and inserting a large number of rods in a parallel state from multiple axial directions perpendicular to the longitudinal rod group. There is.

In the previously proposed method and device, a large number of longitudinal rods are held in a parallel state, and a large number of latitudinal rods are held in a parallel state and inserted between them. Unless the interval between the two is made larger than the thickness of the latitudinal rod to some extent, the insertion of the latitudinal rod cannot be easily performed, or the insertion of the latitudinal rod must be controlled with high precision.

However, increasing the spacing between the warp rods will result in a corresponding reduction in the density of the three-dimensional fabric woven.

Therefore, it is conceivable to increase the spacing between the longitudinal rods at the insertion position of the latitudinal rods and make them denser after insertion, but in this case, many longitudinal rods are not arranged in parallel and the latitudinal rods are Since it is necessary to make the length of the rods longer than the spread width of the longitudinal rod group with the above-mentioned widening intervals, the tips of the weft rods may protrude from the woven fabric, making handling difficult. There is a problem, and it is necessary to deal with it by beating the rods in the longitudinal direction and the rod in the latitudinal direction.

[Problem to be Solved by the Invention] The technical problem of the present invention is to make it possible to obtain a high-density three-dimensional fabric by simple and effective reed beating when weaving a three-dimensional fabric using the above-mentioned rod. The object of the present invention is to obtain a high-density weaving method and device.

[Means for Solving the Problems] The high-density weaving method of the present invention for solving the above problems uses rods made of fiber-reinforced composite material, and weaves rods in the weft direction from two directions orthogonal to the warp rod group. When weaving a three-dimensional fabric by inserting rods, at the insertion position of the weft rods relative to the warp rod group, the intervals between each rod in the warp rod group are opened to the extent that the weft rods can be easily inserted. The weft rods are held in place, the weft rods are inserted there, the weft rods are beaten to increase the density in the warp direction, and then the warp rods are The method is characterized in that a high-density three-dimensional fabric is obtained by beating the cloth with a reed, or by guiding the longitudinal rods with a guide so as to increase the density, and repeating this process.

Further, the densification weaving apparatus of the present invention is an apparatus for weaving a three-dimensional fabric by inserting weft rods from two orthogonal directions to a group of warp rods using rods made of fiber-reinforced composite material. A rod insertion means for inserting a latitudinal rod between longitudinal rods at a latitudinal rod insertion position in which the intervals between each rod in a group of lateral rods are maintained wide enough to facilitate the insertion of the latitudinal rods; A warp beating mechanism that increases the density in the warp direction by beating the rods, and a large number of rod guide edges along the warp rods that are installed around the woven part into which the weft rods were inserted several steps ago, and By providing a latitudinal reeding mechanism that allows the latitudinal reed, which is provided with a concave groove woven between the edges of the rod guide to avoid interference with the tip of the latitudinal rod, to advance and retreat in the direction of each latitudinal rod. configured.

The bottom of the groove in the latitudinal reed on the side opposite to insertion of the latitudinal rod can also be used as a stopper for positioning the rod when the rod is inserted in the latitudinal direction by the rod insertion means.

Further, the above-mentioned latitudinal reed can be provided only on one end side of the latitudinal rod, and a support guide plate that receives the reeding force of the latitudinal reed can be provided on the other end side of the latitudinal rod, and the support guide plate can be provided on the other end side of the latitudinal rod. The plate can also be used as a stopper for positioning the rod when it is inserted in the latitudinal direction.

Furthermore, instead of the above-mentioned latitudinal beating mechanism, a fixed guide with similar rod guide edges and grooves or a rotatable roll-shaped guide can be used to guide the rods in the longitudinal direction so as to increase the density of the rods. It can also be configured by having a guide device arranged, and when a fixed guide is used, it can also be used as a stopper for positioning the rod when the rod is inserted in the lateral direction by the rod insertion means. .

[Function] When weaving a three-dimensional fabric by inserting the weft rods from two orthogonal directions to the warp rod group using rods made of fiber-reinforced composite material, the insertion position of the weft rod with respect to the warp rod group is determined. , the interval between each rod in the longitudinal rod group is
Since it is held open to the extent that it is easy to insert the latitudinal rod, it becomes possible to easily insert the latitudinal rod there.

Weaving involves inserting the weft rods and then beating them to increase the density in the warp direction. The spacing between the rods in the rod group is kept wide open, thereby making it possible to perform the required beating even if the longitudinal rods are inclined.

After beating the weft rods, in the woven part into which the weft rods were inserted a few steps earlier, a large number of rod guide edges along the warp rods and concave grooves between the rod guide edges are formed in the weft direction. Use a reed to perform longitudinal rod reed beating, or
A rotatable roll-shaped guide or the like is used instead of a fixed guide to guide the rods in the longitudinal direction so as to increase the density of the rods. In this case, interference with the tips of the latitudinal rods protruding from the longitudinal rod group can be avoided by the grooves between the edges of the rod guides in the latitudinal reed or guide. In addition, if the latitudinal reed on the side opposite to insertion of the latitudinal rod, the support guide plate that receives the beating force of the latitudinal rod, or the guide that guides the longitudinal rod is used as a stopper when inserting the latitudinal rod, it is possible to The latitudinal rod is stably positioned.

By beating the weft rods and warp rods in this manner, it becomes possible to weave a high-density three-dimensional fabric while easily inserting the weft rods.

[Example] The material used in the production of the three-dimensional fabric in the present invention is prepared by combining a large number of fibers in a matrix in advance into a rod in a state in which they are oriented in the same direction, and the rod thus formed is explained below. Weaving is carried out. The matrix forming the rods can be hardened in advance by heating or other treatment when weaving the three-dimensional fabric;
If it has enough rigidity to withstand weaving, it can be woven in a semi-cured or uncured state, and the rigidity can also be temporarily maintained during weaving by cooling or other means.

Figures 1 to 3 show two rods perpendicular to the longitudinal rod group using the above-mentioned fiber-reinforced composite material rods.
An example of an apparatus for weaving a three-dimensional fabric by inserting a weft rod from the direction shown in FIG.

In this weaving device, a large number of the above-mentioned rods are arranged in parallel at required intervals as longitudinal rod groups 11 in multiple rows and columns on a machine frame (not shown), and a holding means is provided for holding the lower ends of the rods. ing. This holding means holds each rod 10z constituting the longitudinal rod group 11, and each rod 10x, 10y constituting the latitudinal rod groups 12, 13.
They are held so that they are tightly arranged on both sides of the weaving cloth, and are controlled to descend as weaving progresses.

In the warp rod group 11, the intervals between the rods 10z are kept open to some extent by the beating plate 31 of the warp beating mechanism 3, etc. This is to open the longitudinal rods 10z at the insertion positions of the latitudinal rod groups 12 and 13 to such an extent that the rods can be easily inserted.

The rod insertion means 2 provided at the insertion position of the latitudinal rods includes a large number of latitudinal rods 10x, 10x,
, 10y, 10y, . . . are held parallel to the supply guide 21, and inserted between the rods 10z in the longitudinal rod group 11 by a rod pressing mechanism (not shown).

Further, above the insertion position of the latitudinal rod, there is provided a longitudinal beating mechanism 3 for beating the inserted latitudinal rod to increase the density in the longitudinal direction. This reeding mechanism 3 is capable of raising and lowering a reeding plate 31 using a feeding screw 33 screwed into it. The longitudinal rod insertion holes 32 are bored with a pitch slightly wider than the pitch, and the rod insertion holes 32 are made slightly larger than the thickness of the longitudinal rod itself, and the stroke of the reed beating plate 31 is made sufficiently small. We take into consideration the following. Therefore, even if each rod 10z is slightly inclined due to the longitudinal rod group 11 expanding upward, it is possible to perform shinging without any problem.

By this beating, the rods in the latitudinal direction are 10x, 10
The longitudinal pitch of y is compressed to the same extent as the fabric 15 to be finally obtained. Incidentally, at this point, the pitch in the latitudinal direction of the longitudinal rod 10z is in an unfinished state.

Further, a weft beating mechanism 4 is installed below the insertion position of the weft rods, that is, around the woven portion 15a into which the weft rods 10x, 10y were inserted several steps before. This latitudinal beating mechanism 4 is
As shown in FIG. 3, two pairs of latitudinal reeds 41 each having a large number of rod guide edges 42 along the longitudinal rod and grooves 43 between each rod guide edge 42 are connected to an actuator 44 such as a fluid pressure cylinder.
This makes it possible to advance and retreat in opposite directions to each latitudinal rod.

As mentioned above, the latitudinal rods 10x, 10y
When the rod interval of the longitudinal rod 10z is widened at the insertion position, the latitudinal rod 1 to be inserted there
It is necessary that the lengths of 0x and 10y be longer than the width of the longitudinal rod group 11 with increased spacing. However, its length is unnecessarily long in the three-dimensional fabric 15 that is to be finally obtained, and it will protrude to the outside to some extent. For this reason, the concave grooves 43 of the weft direction reed 41 are formed by the weft direction rods 10 protruding from the woven three-dimensional fabric 15.
This is provided to avoid interference with the tips of x and 10y.

Further, the rod guide edge 42 provided on the latitudinal reed 41 is for pressing the warp rods 10z to make them denser. Since it is difficult to do so, the tip is made into a curved surface with the upper side receding so that it can be pressed one after another to gradually increase the density. At the same time, the latitudinal rods are inserted into the longitudinal rods from two directions orthogonal to each other, and the longitudinal rods are beaten from those directions by the latitudinal reeds 41. are closer to each other in the downward direction,
It is curved so that it opens at the top (see Figure 3).

By beating the latitudinal rods 10x and 10y and the longitudinal rod 10z in this way, the latitudinal rods can be easily inserted, and the latitudinal rod group can be densified by beating after insertion. Furthermore, the warp rods are gradually made denser by the weft reeds 41 as weaving progresses, and a three-dimensional fabric 15 with high density is woven.

When weaving warp rods and weft rods using the high-density weaving device having the above configuration, first, the weft rods 10x or 10y are inserted into the warp rod group 11 and then beaten with a reed. After beating with the beating plate 31 of the mechanism 3, the actuator 44 moves back the latitudinal reed 41 which was holding the longitudinal rod group 11 by pressing it from the periphery, and the holding means holding the longitudinal rod group
The fabric being woven is lowered by one pitch.

In this state, the actuator 44 is operated again to advance the latitudinal reed 41 to the pressing position of the longitudinal rod, and the latitudinal rod group 11 is beaten by the latitudinal reed 41, and then the reed beating plate 31
The other latitudinal rod 10y or 10x, which is orthogonal to the latitudinal rod mentioned above, is moved backward (raised).
is inserted into the longitudinal rod group 11, and the above operations are repeated.

In the embodiments shown in FIGS. 1 to 3 described above, the latitudinal reed 41 is made linearly movable in the direction of each latitudinal rod 10x or 10y by an actuator 44 such as a cylinder.
As shown in FIG. 4, a reed 46 having the same structure as 1 is partially supported by a shaft 47, and by rotating it around this shaft 47, it can be swung in the direction of the latitudinal rod 10x or 10y. It is also possible to move forward and backward.

Further, the latitudinal reed 41 is a mere guide that does not perform a reeding operation, and the guide is fixed to the machine frame and arranged so as to be able to guide the longitudinal rods so as to increase the density of the rods. can be configured. In this case, the longitudinal rod group 11 is lowered by the beating force of the reed beating plate 31 in the reed beating mechanism 3 or the tensile force that lowers the longitudinal rod group 11 by the holding means that holds the lower end of the longitudinal rod group 11. The group 11 is pushed along the rod guide edge 42.

Further, as shown in FIGS. 5 and 6, the guide device has a large number of rod guide edges 52 along the longitudinal rod, and the tip portions of the latitudinal rods 10x and 10z woven between the rod guide edges 52. The guide 51 provided with the groove 53 to avoid interference with the machine can also be formed into a roll and rotatably installed in the machine frame. In this case as well, the longitudinal rods 11 are moved by the beating force of the beating plate 31 in the beating mechanism 3 or the tensile force that lowers the longitudinal rod group 11 by the holding means that holds the lower end of the longitudinal rod group 11. The group 11 is pushed in along the rod guide edge 52, and the density of the rod group 11 in the longitudinal direction is accordingly increased.

In the embodiments shown in Figs. 1 to 4, it is assumed that the longitudinal rods are beaten from both ends of each latitudinal rod by the latitudinal reed, but as shown in Figs. As in the embodiment, the latitudinal reed 61 is provided only on one end side of the latitudinal rods 10x and 10y.
, and a support guide plate 62 that receives the beating force of the latitudinal reed 61 can be fixedly disposed on the other end side. In the embodiments shown in these figures, the support guide plates facing the two latitudinal rods 61, 61 for beating in the latitudinal rods 10x, 10y direction are integrated, but it is not possible to form them separately. You can also do it.

The abutment surface 62a of the longitudinal rod and the latitudinal rod on the support guide plate 62 is a flat surface, so when opening the upper part of the longitudinal rod group 11 for insertion of the latitudinal rods 10x and 10y, the longitudinal rod The rod 10z is curved and inclined toward the side opposite to the support guide plate 62 on which the latitudinal reed 61 is provided.

In addition, although not clearly shown in connection with this, a large number of rod guide edges 63 and grooves 64 along the longitudinal rods provided on the latitudinal reed 61 extend vertically linearly on one side, and extend linearly on the other side. It is curved so that it opens at the top.

The above-mentioned support guide plate is as shown in the example shown in FIG.
A rod guide edge 73 and a concave groove 74 are provided on the rod contact surface of the support guide plate 72, so that the tips of the woven rods 10x and 10y in the weft direction are connected to the concave groove 7.
It can be released within 4.

Furthermore, when such support guide plates 62, 72 are provided, they are extended upward to a position facing the rod insertion means 2 (see Fig. 7), and when the rod insertion means 2 inserts the rod in the latitudinal direction. , the support guide plates 62, 72 can also be used as stoppers for positioning the rod.

In addition, the latitudinal reed 41 on the opposite side of insertion in the embodiments shown in FIGS. 1 to 3 is extended upward to a position facing the rod insertion means 2, including when it is used as a guide that does not perform the reed beating operation. However, when the rod insertion means 2 inserts the rod in the lateral direction, it can also be used as a stopper for positioning the rod.

The latitudinal reed, support guide plate, or guide on the side opposite to insertion of the latitudinal rod is also used as a stopper for positioning the rod when the latitudinal rod is inserted by the rod insertion means.

[Effects of the Invention] According to the method and apparatus of the present invention, when weaving a three-dimensional fabric using a rod, a high-density three-dimensional fabric can be obtained by simple and effective beating. .

[Brief explanation of drawings]

FIG. 1 is a perspective view of a main part showing an embodiment of a high-density weaving device for three-dimensional fabrics according to the present invention, FIG. 2 is a cross-sectional view of the main part of the device, and FIG. 3 is a perspective view of a weft reed. , FIG. 4 is a sectional view of main parts showing different embodiments of the latitudinal reed, and FIGS. 5 and 6 are side sectional views and horizontal sectional views of a guide device used in place of the latitudinal reed. 7 and 8 are side sectional views and horizontal sectional views of main parts of other embodiments of the present invention, and FIG. 9 is a horizontal sectional view showing a modification of FIG. 8. 2... Rod insertion means, 3... Longitudinal beating mechanism, 4... Lateral beating mechanism, 10x, 10y...
...Latitude rod, 10z...Longitudinal rod, 11
... Longitudinal rod group, 12, 13 ... Weft direction rod group, 15 ... Three-dimensional fabric, 15a ... Woven part,
31... Reed beating board, 41, 46, 61... Lateral reed, 42, 52, 63... Rod guide edge, 4
3, 53, 64... Concave groove, 51... Guide, 6
2,72...Support guide plate.

Claims (1)

[Claims] 1. When weaving a three-dimensional fabric by inserting weft rods from two directions orthogonal to the warp rod group using rods made of fiber-reinforced composite material, the weft direction with respect to the warp rod group At the rod insertion position, maintain the spacing between each rod in the longitudinal rod group to an extent that allows easy insertion of the latitudinal rod, insert the latitudinal rod there, and then insert the latitudinal rod. After beating to increase the density in the warp direction, beat the warp rods in the woven part where the weft rods were inserted a few steps before, and repeat this to obtain a high-density three-dimensional fabric. , A method for weaving a three-dimensional fabric with high density, characterized by: 2. When weaving a three-dimensional fabric using rods made of fiber-reinforced composite material by inserting weft rods from two directions orthogonal to the warp rod group, at the insertion position of the weft rod with respect to the warp rod group, The intervals between the rods in the longitudinal rod group are kept open to the extent that the latitudinal rods can be easily inserted, and the latitudinal rods are inserted there, and the latitudinal rods are beaten to form the longitudinal rods. In the woven part where the weft rods were inserted a few steps earlier, the warp rods are guided by a guide to increase the density, and by repeating this process, a high density three-dimensional fabric is obtained. , A method for weaving a three-dimensional fabric with high density, characterized by: 3. In a device that uses rods made of fiber-reinforced composite material and inserts weft rods from two directions perpendicular to the warp rod group to weave a three-dimensional fabric, the spacing between each rod in the warp rod group is adjusted in the weft direction A rod insertion means for inserting a latitudinal rod between longitudinal rods at an insertion position of the latitudinal rod held open to the extent that the rod can be easily inserted; A longitudinal beating mechanism that increases the number of rod guide edges installed around the woven part into which the latitudinal rods were inserted a few steps earlier, and a number of rod guide edges along the longitudinal rods, and a latitudinal rod woven between each rod guide edge. A high-density three-dimensional fabric characterized by comprising: a weft-direction reed beating mechanism that allows a weft-direction reed provided with a concave groove to avoid interference with the tip of the weft rod to advance and retreat in the direction of each weft-direction rod. chemical weaving equipment. 4. In the device according to claim 3, a latitudinal reed capable of advancing and retreating in the direction of each latitudinal rod is provided only at one end of the latitudinal rod, and a latitudinal reed is provided at the other end of the latitudinal rod. A high-density weaving device for three-dimensional fabrics, characterized in that a support guide plate is provided to receive the beating force of a directional reed. 5. In a device that uses rods made of fiber-reinforced composite material and inserts weft rods from two directions perpendicular to the warp rod group to weave a three-dimensional fabric, the spacing between each rod in the warp rod group is adjusted in the weft direction A rod insertion means for inserting a latitudinal rod between longitudinal rods at an insertion position of the latitudinal rod held open to the extent that the rod can be easily inserted; A longitudinal beating mechanism that increases the number of rod guide edges installed around the woven part into which the latitudinal rods were inserted a few steps earlier, and a number of rod guide edges along the longitudinal rods, and a latitudinal rod woven between each rod guide edge. densification of a three-dimensional fabric, characterized in that it is equipped with a guide device in which a guide provided with a concave groove to avoid interference with the tip of the rod is arranged so as to be able to guide the rods in the warp direction so as to densify the rods. Weaving equipment. 6. In the device according to claim 3, 4, or 5, the latitudinal reed, support guide plate, or guide on the side opposite to insertion of the latitudinal rod is inserted into the latitudinal rod when the latitudinal rod is inserted by the rod insertion means. A high-density weaving device for three-dimensional fabric, characterized in that the device also serves as a stopper for positioning the rod. 7. The device according to claim 6, wherein the guide for guiding the rods in the longitudinal direction so as to increase the density thereof also serves as a stopper for positioning the rods when the rods are inserted in the lateral direction by the rod insertion means. A high-density weaving device for three-dimensional fabric, characterized by: 8. The device according to claim 6, comprising: a plurality of rod guide edges along the longitudinal rod;
A high rise three-dimensional fabric characterized in that a guide provided with a concave groove woven between the edges of each rod guide to avoid interference with the tip of the latitudinal rod is formed into a roll and is installed rotatably. Densification weaving equipment.