JP2004299270A - Fiber orienting device, fiber orienting method and molded object of fiber-containing slurry using them - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fiber orienting device not affected by the kind of fibers and capable of orienting the fibers in an arbitrary direction by an easy constitution, a fiber orienting method using it and a molded object of a fiber-containing slurry using them. <P>SOLUTION: In the fiber orienting device 10 equipped with a plurality of orientation rods 1 arranged at a definite interval 1c and constituted so as to allow the orientation rods 1 and an uncured fiber-containing curable slurry 20 to relatively move to orient the fibers 21 contained in the slurry 20, a vibration applying device 4 for applying vibration to the orientation rods 1 is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fiber orientation technique in a hardening slurry containing fibers such as concrete, plastic, and ceramics.
[0002]
[Prior art]
Hitherto, in order to improve the strength and toughness of a molded product such as concrete, a method of mixing a fiber for reinforcing strength into a cement composition such as a hardenable slurry has been studied. As a result, it was found that when fibers were mixed into the curable slurry to reinforce the molded product, the strength of the molded concrete or the like was affected by the orientation direction of the fibers. For example, in the case of a plate-shaped molded product, strength is generally required in the longitudinal direction rather than the short direction. However, in a method of producing a plate-like molded product by pouring a slurry into a mold or the like, the orientation direction of the mixed fibers becomes random, and the molding method such as an extrusion molding method or a papermaking method is used. In addition, the effect of improving the strength by the fiber could not be sufficiently obtained.
[0003]
To address such a problem, conventionally, in order to orient the fibers in the curable slurry, the fibers are oriented using the following fiber orientation device. The fiber orientation device includes a plurality of orientation rods arranged at intervals in an uncured fiber mortar cast in a casting space of a mold, a fixing plate for fixing the orientation rods, It is composed of a fiber orientation jig composed of a gripper that can be gripped to move the fixing plate, and a guide plate for arranging the fiber orientation jig on the upper surface of the mold. The guide plate is provided with a guide path into which the grip portion is inserted, and the fiber orientation jig is moved along the guide path, and the fiber orientation jig is moved along the moving direction by the orientation rod. Orientation was performed.
[0004]
[Patent Document 1]
JP-A-2002-347013
However, the conventional fiber orientation device has a problem. A plurality of the alignment rods are arranged at intervals, and the fiber mortar passes through the intervals between the alignment rods. There is a problem that fibers are clogged. Further, the fibers used for reinforcing the molded body are various, and the above-mentioned problems are particularly conspicuous in the case of long fibers or thick fibers, and are accompanied by restrictions on the types of fibers and the like. I was
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of such a problem, and provides a fiber orientation technique capable of orienting fibers in an arbitrary direction with an easy configuration without being affected by the type of fibers. Is a technical issue.
[0007]
[Means for Solving the Problems]
That is, the present invention includes a plurality of alignment rods arranged at regular intervals, and relatively moves the alignment rod and the uncured fiber-containing curable slurry to orient the fibers contained in the slurry. And a vibration imparting device for imparting vibration to the orientation rod.
[0008]
According to the present invention, by providing the vibration imparting device, when the fibers are entangled with the alignment rod, the fibers entangled with the alignment rod due to the vibration of the alignment rod can be removed. Therefore, it is possible to orient the fibers by smoothly moving the slurry and the alignment rod relatively, without being affected by the type of fibers contained.
[0009]
Further, the slurry usually has a viscosity. Particularly, in the case of a highly viscous slurry, if the orientation bar and the slurry continue to move relatively, the slurry may adhere to the orientation bar. When the slurry adheres to the alignment rods, the gap between the alignment rods arranged at regular intervals becomes narrow. When the gap between the alignment rods is narrowed, the slurry and the alignment rod cannot move smoothly relative to each other, and the fibers cannot be oriented in any direction. Even in such a case, the slurry adhered to the alignment rod can be removed by applying vibration to the alignment rod, and the fibers can be stably and continuously oriented in any direction.
[0010]
In addition, in recent years, high mass productivity of a molded article using a slurry has been particularly demanded, and in order to realize this high mass productivity, a rapid-hardening slurry is often used. Since this quick-setting slurry has a high curing speed, it must be uniformly mixed and poured in a short time, and it is essential to stir at a high speed. Therefore, at the time of mixing, the surface of the slurry undulates violently, the contact area with air increases, and a large amount of air bubbles are caught in the slurry. The presence of these bubbles causes physical properties such as poor appearance and strength of the molded article after curing to be reduced. However, by applying vibration to the alignment rod, it is possible to remove coarse bubbles from the uncured slurry, and it is possible to prevent poor appearance and reduced physical properties of the cured compact.
[0011]
Here, the vibration applying device may be any device that can apply vibration to the alignment rod, and examples thereof include a vibrator. The driving method includes an eccentric motor type, a weight motor type, a pneumatic type, an electromagnetic type, and the like, and an appropriate method may be selected according to a use situation.
[0012]
Further, the present invention includes a plurality of alignment rods arranged at regular intervals, and relatively moves the alignment rod and the uncured fiber-containing curable slurry to orient the fibers contained in the slurry. In the fiber orientation device, it is preferable that a circumferential length of the orientation rod in the upstream side of the slurry relatively moving is 0.75 times or more a longest fiber length contained in the slurry.
[0013]
Usually, when a rod-shaped orientation rod is put in a fiber-containing slurry that moves relatively, fibers are entangled with them. If the slurry is entangled with the alignment rods, not only the fibers cannot be aligned, but also the gaps between the alignment rods may be narrowed or the gaps between the alignment rods may be clogged. Further, as described above, the fibers contained in the slurry are various. Therefore, the present applicant has studied the relationship between the length of the fiber contained in the slurry and the orientation bar. As a result, if the length of the front surface of the orientation rod, which is viewed from the upstream side of the orientation rod that moves relatively to the slurry, is 0.75 times or more the longest fiber length contained in the slurry, the orientation rod has a fiber. Turned out to be entangled. Therefore, by appropriately selecting the alignment rod according to the fiber contained in the slurry, the fiber can be smoothly aligned without the fiber being entangled with the alignment rod. Therefore, it is possible to smoothly orient various fibers.
[0014]
Here, the alignment rod used in the present invention will be described. The alignment rod is not particularly limited as long as it does not corrode when inserted into the slurry, and its material and shape are not particularly limited. However, a material having a smooth surface or a material having low wettability with the fiber or the slurry is desirable from the viewpoint of preventing the fiber from being caught or the slurry from being fixed. In particular, when the fibers are oriented continuously for a long time, it is desirable to appropriately select the material.
[0015]
The fibers used in the present invention are used for improving the strength of a molded article using the cement composition, and any of organic fibers and inorganic fibers may be used, and various fibers can be used. For example, examples of the organic fiber include aramid fiber, carbon fiber (carbon fiber), rayon, polyethylene fiber, acrylic fiber, vinylon fiber, polypropylene fiber, phenol fiber, pulp fiber, and hemp fiber. Examples of the inorganic fibers include steel fibers, glass fibers, alkali-resistant glass fibers, wollastonite fibers, and alumina fibers. These fibers have various lengths and thicknesses, and the maximum fiber length is 30 mm and the minimum is about 1 mm. The maximum diameter of the fiber is 1000 μm and the minimum diameter is 2 μm. It is desirable to appropriately select the alignment rod in consideration of the length and diameter of these fibers.
[0016]
In the fiber orientation device according to the present invention, there are various arrangement examples of the arrangement of the orientation rods. For example, it may be divided into a plurality of stages in the height direction, and the alignment bars of each stage may be provided independently of the alignment bars of the other stages.
[0017]
According to the above configuration, the fiber orientation in each stage can be different from that in the other stages. Therefore, for example, by arranging the alignment rod at a position different from the alignment rod of the adjacent step, the positional relationship between the oriented fibers does not become a straight line, and a strong molded body can be obtained. That is, if the fibers are arranged on a straight line, the fibers may be separated from the straight line, and the strength of the molded article after curing may be significantly reduced. Therefore, the effect of improving the strength by the fiber can be further obtained by dividing the alignment rod into a plurality of stages and changing the arrangement position.
[0018]
Further, in the present invention, the alignment rods are arranged in a plurality of parallel rows, and the arrangement position of the alignment rods in an arbitrary row is, in the direction of relative movement with respect to the slurry, the arrangement position of the alignment rods in another row. It is desirable to be arranged on a different axis.
[0019]
The fiber orientation device according to the present invention is provided with a plurality of orientation rods, and the slurry contained in the slurry is oriented by passing the slurry through gaps between the orientation rods. Therefore, the number of rows in which fibers can be oriented corresponds to the number of orientation rods, and is limited to a fixed number. However, since the reinforcing effect of the fibers is increased by increasing the number of rows of fibers to be oriented, there is a need to arrange the fibers over a large number of rows. Further, when long fibers are oriented, it is desirable to increase the diameter of the orientation rods as described above, so that the number of orientation rods is reduced, and the number of rows of oriented fibers is reduced. In such a case, by arranging the alignment rods in a plurality of rows, the fibers can be oriented in a large number of arrangements. Further, by providing the above-described configuration in which the alignment rods are provided in multiple stages, the fiber alignment pattern is further expanded.
[0020]
Further, the present invention provides a method of inserting a plurality of alignment rods arranged at a predetermined interval into an uncured fiber-containing slurry, and relatively moving the alignment rod and the slurry, thereby obtaining fibers contained in the slurry. In the fiber orientation method for orienting, at least one of the orientation bar and the slurry may be vibrated when the orientation bar and the slurry are relatively moved.
[0021]
As described above, when the slurry containing the fiber and the alignment rod are relatively moved, the fiber may become entangled with the alignment rod or the slurry may adhere to the alignment rod. Therefore, by applying vibration to the alignment rod or the slurry, the relative movement between the alignment rod and the slurry can be made smooth, and the fibers can be aligned.
[0022]
Examples of a method for applying vibration to the alignment rod or the slurry include a method in which the above-described vibration applying device such as a vibrator is attached to any of the above or a method in which an impact is applied by a knocker or the like to cause vibration.
[0023]
Further, the present invention is a molded article of a fiber-containing curable slurry in which the fibers contained therein are oriented by relative movement with a plurality of orientation rods arranged at intervals, and the cross section of the molded article is It is characterized by being divided into a plurality of stages in the thickness direction, wherein at least one fiber among the plurality of stages is oriented.
[0024]
The molded article is a molded article in which fibers are oriented by the fiber orientation method and the fiber orientation apparatus described above. In this molded body, the orientation of the fibers in the cross section is divided into a plurality of stages, and the fibers may be oriented only in necessary portions, or may be oriented differently in each stage. For example, in the case of a plate-like molded body such as a panel, the magnitude of the external force to be received and its direction are different between the surface and the inside, so that it is desirable that the fibers are oriented in the direction corresponding to that part. The alignment rod can be moved not only in one direction but also in various directions, and in combination with the arrangement example of the alignment rod described above, the fiber alignment pattern is adapted to the use of the molded article. be able to. The molded body in which the fibers are oriented in this way can obtain necessary strength, and can be used for various applications.
[0025]
Further, the present invention is a molded body of a fiber-containing curable slurry in which the fibers to be contained are oriented by relative movement with a plurality of alignment rods arranged at regular intervals, and any of the molded bodies It is desirable that the orientation state of the fibers in the cross section is staggered. Orienting the fibers in only one direction may reduce the strength in one direction. However, by making the orientation state of the fibers zigzag, it is possible to increase the proof stress against a unidirectional force. Further, by combining the staggered alignment states in the vertical direction, the horizontal direction, and the height direction, it is possible to appropriately respond to external force in any direction. In particular, it is preferable when the direction of the external force is not constant.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of a fiber orientation device according to the present invention will be described in detail with reference to the drawings.
[0027]
The present embodiment is a technique of orienting fibers in forming a slurry by forming a fiber-containing curable slurry continuously into a predetermined width and thickness to form a formed body. FIG. 1 is a partial perspective view of a slurry forming apparatus for forming the slurry. The slurry forming device is provided with a belt 30 that continuously receives the uncured fiber-containing curable slurry 20 on a moving surface and transports the cured slurry 20 in the X direction, and a flow of the uncured slurry 20 provided on both sides of the belt 30. The apparatus includes a side belt 40 as a mold for defining the width, and a fiber orientation device 10 for orienting the fibers contained in the uncured slurry 20 that has been cast. Examples of a molded article formed by such a slurry forming apparatus include a cement-based building material panel as a building material.
[0028]
That is, the fiber orientation device 10 according to the present embodiment included the uncured slurry 20 conveyed on the belt 30 when the width, thickness, and the like were standardized by the side belt 40. Used to orient fibers in any direction.
[0029]
Next, the fiber orientation device 10 according to the present embodiment will be described in detail. FIG. 2 is a front view of the fiber orientation device shown in FIG. 1, and FIG. 3 is an enlarged front view of an orientation rod portion of the fiber orientation device shown in FIGS. As shown in the figure, the fiber orientation device 10 includes a plurality of orientation rods 1 inserted into a slurry 20 cast on the belt 30, a fixed rod 2 to which the plurality of orientation rods 1 are connected, The apparatus includes a support rod 3 that supports the fixed rod 2 and a vibrator 4 that is mounted on the support rod 3 and that applies a vibration to the alignment rod 1.
[0030]
The orienting rods 1 are vertically erected at regular intervals on an axis parallel to the Y direction which is the width direction of the belt 30. Further, the alignment rod is formed in two steps in the Z direction which is the height direction. A lower stage 1a serving as a lower end of the fiber orientation device 10 and an upper stage 1b are formed above the lower stage 1a with a partition bar 5 therebetween. Each of the alignment rods 1 of the upper row 1b and the lower row 1a is erected with a certain gap 1c between the adjacent alignment rods 1. The slurry 20 passes through the gap 1c between the alignment rods 1, and the fibers 21 contained in the slurry are oriented.
[0031]
The orientation bar 1 of the upper stage 1b and the orientation bar 1 of the lower stage 1a are arranged on one axis parallel to the Y direction. On the other hand, in the X direction, the orientation bar 1 of the upper stage 1b is located in the gap 1c of the orientation bar 1 of the lower stage 1a. That is, the alignment rods 1 in the upper stage 1b and the alignment rods 1 in the lower stage 1a are arranged not at a straight line but at different positions. Therefore, since the fibers 21 are oriented on different axes parallel to the X direction in the upper half and the lower half of the slurry, higher strength can be obtained as compared with the case where the fibers 21 are uniaxially oriented. Further, by adjusting the gap 1c between the alignment rods 1 and the positional relationship of the alignment rods 1 with other stages, the alignment state of the fibers 21 can be variously adjusted. That is, it is possible to reinforce the fiber 21 in a necessary place in a necessary state according to the use of the molded body.
[0032]
FIG. 4 is a sectional view of the alignment rod 1. The cross-sectional shape of the alignment rod 1 is elliptical, and the shape of the upstream side (A) facing the moving direction X of the slurry is semicircular in order to prevent the relatively moving slurry and the fibers 21 contained in the slurry from being caught. Is desirable. On the other hand, it is desirable that the cross-sectional shape on the downstream side (B) in the moving direction of the slurry is appropriately selected depending on the properties of the slurry that moves relatively. For example, when the viscosity of the slurry is high, it is desirable that the slurry has a semicircular shape similar to the shape on the upstream side so as to prevent the slurry from sticking to the alignment rod and allow the slurry to pass through the alignment rod without delay (FIG. 4 (a) )reference). When the viscosity of the slurry is low, it is desirable that the slurry be slightly elliptical in order to prevent the slurry from flowing turbulently downstream of the alignment rod (see FIG. 4B).
[0033]
Further, the orientation rod 1 has a circumferential length (length of a semi-circular portion) on the upstream side (A) facing the moving direction X of the slurry is 0.75 times or more the longest fiber length contained in the slurry. Is used. By doing so, even when long fibers are oriented, the fibers can be prevented from becoming entangled with the orientation rod, so that various fibers can be oriented without being limited by the type of fiber.
[0034]
Further, the vibrator 4 is mounted on the support bar 3 and applies vibration to the alignment bar 1 as needed. The vibrator 4 includes a vibrating unit 4a that is connected to the support bar 3 and applies vibration to the alignment bar 1, a motor 4b that applies power to the vibrating unit 4a, and a grip unit 4c. In the present embodiment, the orientation bar 1 is vibrated by using a vibrator. However, for example, an impact may be caused by a knocker or the like to apply the vibration.
[0035]
Next, a method for orienting the fibers 21 of the fiber orientation device 10 configured as described above will be described. The slurry 20 cast on the belt 30 is conveyed in the X direction by the belt 30 while the flow width is regulated by side belts 40 provided on both sides of the belt. The fiber orientation device 10 is fixed at an arbitrary position on the belt 30, and the lowermost ends of the orientation rods 1 are spaced apart from the belt 30 at a slight interval. When the slurry 20 passes through the fiber orientation device 10, the slurry 20 and the fibers 21 contained in the slurry 20 pass through the gap 1 c between the orientation rods 1. Therefore, the fibers 21 are oriented in a plurality of rows in the X direction. As described above, the alignment rod 1 according to the present embodiment is erected in two stages, and the arrangement position of the alignment rod 1 in one stage is different from that of the other stage in the width direction (Y direction) of the belt. 5 and 6, the orientation of the fibers 21 of the molded plate-like molded body 22 is as shown in FIGS. 5 and 6 are diagrams showing model orientations of the fibers of the molded article. That is, the orientation of the fibers 21 in the upper half and the lower half in the thickness direction of the plate-shaped molded body 22 is different, and the strength is high in the longitudinal direction.
[0036]
In the present embodiment, the fiber orientation device 10 and the slurry 20 are relatively moved in the X direction by moving the slurry by the belt 30 while fixing the fiber orientation device 10. However, the fiber orientation device 10 may be moved without being fixed. For example, in a case where the slurry 20 is poured into a mold provided in advance and the fibers 21 included in the slurry are oriented, in addition to the method of moving the mold, a fiber orientation device may be moved, Either method can easily orient the fibers 21.
[0037]
Further, the slurry 20 and the fiber orientation device 10 may be moved together. For example, the plate-shaped molded body 22 has a large strength in the longitudinal direction, but has a small strength in the width direction as compared with the longitudinal direction. Therefore, when strength is also required in the width direction, the fibers 21 need to be oriented at an angle to the X direction without being oriented parallel to the X direction. In such a case, the strength in the width direction can be increased by moving the fiber orientation device 10 in the Y direction while conveying the slurry 20 in the X direction by the belt 30.
[0038]
For example, by repeatedly reciprocating the fiber orientation device 10 in the Y direction, as shown in FIG. 7, a plate-shaped molded body 23 in which the fibers 21 are oriented in a staggered manner on the surface is obtained. Further, by repeatedly reciprocating the fiber orientation device 10 in the Z direction (thickness direction of the molded body), as shown in FIG. 8, a molded body 24 in which the fibers 21 are oriented in a staggered cross section is obtained. That is, the angle at which the fibers 21 are oriented can be determined by the flow speed of the slurry in the X direction and the speed at which the fiber orientation device 10 is moved in the Y and Z directions.
[0039]
The number of fibers 21 to be oriented is determined by the number of gaps 1c between the orientation rods 1. Therefore, when it is desired to orient the fibers 21 in a greater number of rows, it is necessary to narrow the gap 1c between the alignment rods 1 and provide more alignment rods 1. However, if the gap 1c of the alignment rod 1 is too narrow, the slurry 20 may be difficult to pass, or the fiber 21 may be clogged in the gap 1c.
[0040]
Therefore, when it is desired to orient the fibers 21 in a larger number of rows, it is preferable to provide a plurality of fiber orientation devices 10 and arrange them in parallel on a plurality of axes parallel to the Y direction as shown in FIG. In this case, the arrangement position 1d of the orientation rod 1 of the one fiber orientation device 10a in the X direction and the arrangement position 1e of the orientation rod 1 of the other fiber orientation device 10b in the X direction are on different axes so as not to be coaxial. It is desirable to arrange them. By arranging a plurality of fiber orientation devices 10 in parallel, the slurry 20 and the fibers 21 contained in the slurry 20 pass through the gap 1c of the orientation rod 1 many times, so that the orientation of the fibers 21 can be adjusted more finely. It becomes.
[0041]
Further, the fiber orientation device 10 may be provided by being divided into a plurality in the Y direction which is the entire width direction of the slurry 20. For example, FIG. 10 provides two fiber orientation devices adjacent. By moving the fiber orientation devices 10 with different movement patterns, each fiber orientation device 10 can have a different fiber orientation, and the orientation pattern of the fibers 21 can be further expanded.
[0042]
The arrangement of the orientation rods 1 of the fiber orientation device 10 according to the present invention is not limited to the arrangement of the first embodiment described above, but may be another arrangement. Since the orientation of the fibers 21 can be varied by different arrangements of the orientation rods 1, it is desirable to appropriately select them according to the use of the molded article, the required strength, and the like. Hereinafter, another embodiment in which the arrangement of the alignment rod 1 is different will be described in detail with reference to the drawings.
[0043]
In the second embodiment, the arrangement of the alignment rods 1 formed in two stages in the first embodiment is formed in one stage (see FIG. 11). According to the second embodiment, since the orientation state of the fibers 21 is simpler than that of the first embodiment, the strength in the width direction is reduced.
[0044]
On the other hand, in the third embodiment, the arrangement of the alignment rods 1 shown in the first embodiment is further provided in multiple stages (see FIG. 12). According to the third embodiment, as compared with the first and second embodiments, the orientation state of the fiber 21 is complicated, and the strength is increased in both the longitudinal direction and the width direction. In the fourth embodiment, the alignment rods 1 are divided into multiple stages, but the alignment rods 1 are not provided in all the stages, and the alignment rods 1 are provided only in necessary stages (see FIG. 13). The arrangement of the alignment rods 1 may be selected according to the use condition of the molded body. For example, a case where strength is required on only one surface of the plate-shaped molded body can be exemplified.
[0045]
In the fifth embodiment, the alignment rod is not provided over the entire width of the slurry in the Y direction, and the alignment rod is provided only on both sides (see FIG. 14). Therefore, it can be suitably used particularly for a molded body in which an external force is applied to the peripheral portion. Further, by combining the alignment rods 1 shown in FIG. 14, it is possible to form a molded body 25 as shown in FIG.
[0046]
As described above, the fiber orientation technique according to the present invention can easily vary the arrangement of the orientation rods 1, so that it can be adjusted by adjusting the relative movement speed and direction between the fiber orientation device 10 and the slurry 20. In addition, various orientations of the fibers 21 can be performed. In addition, it is possible to cope with various fibers 21 by providing the vibration imparting device 4 or adjusting the cross-sectional shape of the alignment rod 1 in relation to the length of the fibers 21 to be oriented.
[0047]
Although the first to fifth embodiments have been described as examples in the present embodiment, the present invention is not limited to these embodiments, and includes a combination thereof.
[0048]
【The invention's effect】
As described above, according to the present invention, it is possible to orient a fiber in an arbitrary direction with an easy configuration without being affected by the type of the fiber. In addition, the molded body in which the fibers are oriented by the fiber orientation device or the fiber orientation method according to the invention is suitably reinforced in a necessary place by a fiber corresponding to a necessary strength, so that it is suitable for various uses. Can be used.
[Brief description of the drawings]
FIG. 1 is a partial perspective view of a slurry forming apparatus according to a first embodiment.
FIG. 2 is a front view of the slurry forming apparatus according to the first embodiment.
FIG. 3 is a partial front view of the fiber orientation device according to the first embodiment.
FIG. 4 is a sectional view of an alignment rod according to the present embodiment.
FIG. 5 is an example of a plate-like molded body using the fiber orientation device according to the first embodiment.
FIG. 6 is a sectional view taken along the line P in FIG. 5;
FIG. 7 is an example of a plate-like molded body using the fiber orientation device according to the first embodiment.
FIG. 8 is an example of a plate-like molded body using the fiber orientation device according to the first embodiment.
FIG. 9 is an arrangement example of a fiber orientation device according to the first embodiment.
FIG. 10 is an arrangement example of a fiber orientation device according to the first embodiment.
FIG. 11 is a partial front view of the fiber orientation device according to the second embodiment.
FIG. 12 is a partial front view of the fiber orientation device according to the third embodiment.
FIG. 13 is a partial front view of the fiber orientation device according to the fourth embodiment.
FIG. 14 is a partial front view of the fiber orientation device according to the fifth embodiment.
FIG. 15 is an example of a plate-like molded body using the fiber orientation device according to the fifth embodiment.
[Explanation of symbols]
REFERENCE SIGNS LIST 10 fiber orientation device 1 orientation bar 2 fixed bar 3 support bar 4 vibrator 5 as vibration imparting device 5 partition bar 20 fiber-containing slurry 21 fibers 22, 23, 24, 25 plate-shaped formed body 30 belt 40 side belt

Claims (7)

A fiber orientation device comprising: a plurality of orientation rods arranged at regular intervals; and relatively moving the orientation rod and the uncured fiber-containing curable slurry to orient the fibers contained in the slurry. hand,
A fiber orientation device, comprising: a vibration imparting device that imparts vibration to the orientation bar. A fiber orientation device comprising: a plurality of orientation rods arranged at regular intervals; and relatively moving the orientation rod and the uncured fiber-containing curable slurry to orient the fibers contained in the slurry. hand,
The fiber orienting device according to claim 1, wherein the orienting rod has a circumferential length of a front surface on the upstream side of the slurry that is relatively moved is at least 0.75 times the longest fiber length contained in the slurry. The said orientation bar is divided into several steps in the height direction, The orientation bar of each stage is provided independently of the orientation bar of another stage, The Claims 1 or 2 characterized by the above-mentioned. The fiber orientation device according to item 1. The alignment rods are arranged in a plurality of parallel rows, and the arrangement position of the alignment rods in an arbitrary row is on a different axis from the arrangement position of the alignment rods in the other rows in the direction of relative movement with the slurry. The fiber orientation device according to any one of claims 1 to 3, wherein the fiber orientation device is arranged. A fiber orientation method for orienting the fibers contained in the slurry by inserting a plurality of orientation rods arranged at regular intervals into the uncured fiber-containing slurry and relatively moving the orientation rod and the slurry. And
A fiber orientation method comprising: vibrating at least one of the orientation bar and the slurry when the orientation bar and the slurry are relatively moved. By relative movement with a plurality of alignment rods arranged at regular intervals, a molded article of a fiber-containing curable slurry in which the fibers contained are oriented,
The molded body of the fiber-containing curable slurry is characterized in that the cross section is divided into a plurality of stages in the thickness direction of the molded body, and at least one of the plurality of stages has fibers oriented. By relative movement with a plurality of alignment rods arranged at regular intervals, a molded article of a fiber-containing curable slurry in which the fibers contained are oriented,
A molded article of a fiber-containing curable slurry, wherein the orientation of the fibers in an arbitrary cross section of the molded article is staggered.

Images