JP2002205341A - Composite material molding apparatus and composite material molding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a molding processing time. SOLUTION: In the composite material molding apparatus for molding a composite material by pressing a plurality of fibers 1 to an object under heating by a head part 8, paired guide rollers 3, 4, 5 and 6, constituted so that the outer peripheral surfaces thereof are made uneven so as to be meshed with each other and the respective fibers are held between the meshed surfaces to be fed out, and a guide 7, which holds a plurality of the fed fibers 1 from both surfaces of them at the position on the upstream side of a pressure roller 9 to guide them to the pressure roller 9, are provided. Each of the paired guide rollers 3, 4, 5 and 6 is formed by laminating a plurality of disc members 14 having different diameters in the axial direction of the roller and the respective disc members 14 can be rotated separately and independently.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite material molding apparatus and a composite material molding method for molding a composite material by a fiber placement molding method.

[0002]

2. Description of the Related Art Conventionally, the following three molding methods are generally known as a method for producing a large product using a fiber reinforced resin. In a filament winding molding method as a first method, as used in a molding apparatus disclosed in Japanese Patent Application Laid-Open No. 5-208427, a fiber base material impregnated with a resin is continuously supplied to move in an axial direction. Wrap around the mandrel. Then, when the fiber base material is uniformly wound around the entire outer peripheral surface of the mandrel, it is cured in the wound state, and thereafter, the fiber is pulled out from the mandrel.

[0003] This filament winding molding method is mainly used for molding a cylindrical fiber reinforced resin product. Filament winding molding method,
Since the process from the winding of the filament to the molding can be performed by an automated facility, the production can be performed at low cost. However, since the fiber base material is wound from the outer peripheral side of the mandrel, it is difficult to mold a product having a complicated shape such as a surface including a concave surface, and has a drawback that it can be mainly used only for molding a shaft or a cylindrical product. .

[0004] Autoclave molding as a second molding method is a prepreg in which a reinforcing fiber is impregnated with a thermosetting resin (a mixture of a resin, additives, and a fibrous or filamentous reinforcing agent ready for molding). ) Are stacked, heated and pressurized with an inert gas in an autoclave (a pressure vessel for performing chemical reaction, extraction, sterilization, etc. under high temperature and high pressure) and molded. . In this method, for example, parts having a relatively simple shape such as the wing surface of an airplane can be manufactured by laminating a prepreg having a width of about 100 mm using a roller.

In this case, the gently uneven portion of the product surface is absorbed in the range of expansion and contraction of the prepreg, so that there is no problem with a product having a small curvature. However, a product with a large curvature causes slack in the prepreg. There is a drawback that it is not possible to perform molding of a complicated shape. In addition, the autoclave molding method has a disadvantage that a large amount of prepreg is wasted because it is necessary to cut the prepreg at the end of the product after molding.

In recent years, a fiber placement molding method has been used as a molding method for reinforcing the disadvantages of these two molding methods. As a conventional molding apparatus using this method, a molding apparatus shown in FIGS. 9A and 9B is generally known. In the conventional molding apparatus shown in FIG. 9, a plurality of wire-shaped or narrow tape-shaped fibers 901 having a width of 1 to 10 mm and a thickness of 0.5 to 1 mm are conveyed to the head unit 902 from the upper part of the apparatus at regular intervals. are doing. Or a wire-shaped or narrow tape-shaped fiber 90
1 is fed (conveyed) to the head section via one or a plurality of guide rollers.

The forming roller 90 of the head 902
After the fibers are aligned to a narrow width by the guide member 904 at a position before the third position, the fibers are heated by the heater 906. Then, the plurality of heated fibers 901 are attached to the object 907 while rotating the forming roller 903. Since the fiber 901 is impregnated with a thermosetting resin, the fiber 901 is attached to the object 907 with a weak adhesive force.
The forming roller 903 moves while adhering the fiber 901 to the object, and when reaching the end of the object, the cutter 905.
Cut the fiber with. Then, before starting the next molding, the fiber is sandwiched by a conveyor-shaped roller 908 and sent out, and the fiber tip is introduced to the molding roller 903.

[0008]

However, in such a molding apparatus utilizing the conventional fiber placement molding method, the fiber used is in the form of a wire or a narrow tape, so that the width that can be molded at a time is limited. There is a problem that it cannot be widened, and it takes time to mold an object having a certain area. In order to increase the width that can be formed at a time, it is conceivable to use a wide tape-like fiber. However, in the conventional molding apparatus shown in FIG. 9, since the fibers are pressed in the width direction from the outside by the guide member in order to align the plurality of fibers, the pressing force applied to align the wide tape-like fibers is used. Is too large to use wide fibers.

During the molding, a twist is generated between the guide rollers due to the operation of the rotating shaft for moving the head position. Further, there is also a case where the twist is generated between the feed roller and the receiver roller of the fiber of the guide roller. For this reason, when a plurality of wide tape-shaped fibers are used in the conventional molding device, the width of the entire fiber array is narrowed from the upper portion of the device to the intermediate portion of the guide member, so that adjacent fibers are easily brought into contact. Since the fibers are impregnated with a thermosetting resin, they come into contact and entangle when they come into contact with each other.

Further, in the conventional apparatus, since the fiber is pressed in the width direction from the outside by the guide member, the fiber may be clogged inside the guide member. As described above, in the conventional molding apparatus, when a plurality of wide tape-shaped fibers are used, the plurality of fibers cannot be stably supplied to the head portion due to entanglement of the fibers or clogging in the guide member. There is a problem.

The present invention has been made in view of the above, and has an object to provide a composite material molding apparatus and a composite material molding method capable of shortening a molding processing time by simultaneously transporting a plurality of wide tape-shaped fibers. The main purpose is to provide. It is another object of the present invention to provide a composite material forming apparatus and a composite material forming method capable of stably supplying a plurality of tape-like fibers to a head portion.

[0012]

In order to achieve the above object, a first aspect of the present invention is to provide a composite material molding method in which a composite material is molded by pressing a plurality of fibers to an object under heating by a head portion. The apparatus is characterized in that a transport means is provided for transporting the plurality of tape-shaped fibers to the head section while being alternately shifted in the thickness direction thereof.

In the invention according to the first aspect, "a state in which the fibers are alternately shifted in the thickness direction" means a state in which adjacent fibers have an interval in the thickness direction. In the present invention, since the transporting means transports the plurality of tape-like fibers to the head portion while being alternately shifted in the thickness direction, even if the width between the tape-like fibers becomes narrower during the transport, they come into contact with each other. As a result, the fiber can be stably supplied to the head. Also, since the plurality of fibers do not come into contact during transportation, it is possible to use fibers wider than the fibers used in the conventional molding apparatus, and if the fibers are alternately shifted in the thickness direction. Since there is no need to provide an interval in the width direction of the fiber, there is no need to reciprocate on the surface of the object many times even when attaching the fiber to an object having a large area, and the processing time for molding can be reduced. .

The configuration of the transport means in the present invention is not particularly limited as long as the transport means transports the plurality of tape-like fibers to the head portion while being alternately shifted in the thickness direction. As such a conveying means, a pair of rollers which sandwich and feed a plurality of fibers and whose outer peripheral surfaces have a plurality of different diameters corresponding to the deviation of the fiber may be used, or may be adapted to the deviation of the fiber. It is possible to use a plurality of separately provided rollers. Further, it is also possible to simply guide through a guide plate having a guide hole alternately shifted in the thickness direction. In addition, if adjacent fibers have an interval in the thickness direction, it can be arbitrarily configured whether or not the interval is provided in the width direction.

[0015] The invention according to claim 2 is based on claim 1.
In the composite material molding apparatus described in the above, the transport means transports each of the fibers separately and independently.

According to the second aspect of the present invention, the transporting means transports each fiber independently, so that one fiber does not follow or be affected by the transport of any other fiber. For this reason, it is possible to prevent the fiber from slipping due to the transport of another fiber.

[0017] The invention according to claim 3 is based on claim 1.
Or in the composite material forming apparatus according to 2, the conveying means is formed in a concavo-convex shape in which an outer peripheral surface is meshed with each other, and a pair of rolls which sandwich and send out each fiber at each meshing surface; And a guide section for sandwiching the fiber from both sides at an upstream position with respect to the head section and introducing the fiber into the head section.

According to the third aspect of the present invention, since the outer peripheral surfaces of the pair of rolls are formed in an irregular shape that meshes with each other and each fiber is sandwiched between the meshing surfaces, the plurality of fibers are alternately shifted in the thickness direction. To the head section. Then, at the upstream position with respect to the head portion, the guide portion sandwiches the plurality of fibers from both sides thereof. Here, both sides of the fiber mean the side in the thickness direction of the fiber. For this reason, the plurality of fibers conveyed in a state of being alternately displaced in the thickness direction pass through the guide portion, are aligned in a line, and are introduced into the head portion.

In the present invention, the fibers are conveyed in a state of being alternately shifted in the thickness direction until immediately before the fibers are introduced into the guide portion. Therefore, even when the pair of rolls are twisted, the fibers are conveyed during the conveyance. It is possible to prevent the fiber from coming into contact with the adjacent fiber and becoming entangled. In addition, the guide section sandwiches and aligns the tape-shaped fiber from its thickness direction, so that the pressing force applied to the fiber from the guide section is very small compared to the conventional molding device that presses and aligns the fiber from the width direction of the fiber. As a result, the fiber does not clog in the guide portion. As described above, according to the present invention, the entanglement and clogging of the fibers can be prevented, so that a stable supply of the fibers to the head portion can be realized. In addition, a wide tape-shaped fiber can be used, and the processing time for molding can be reduced even for an object having a large area.

The invention according to claim 4 is the invention according to claim 3.
In the composite material forming apparatus according to the above, each of the pair of rolls, a plurality of disk members having different diameters are laminated in the roller axis direction, and each disk member is rotatable independently and independently. I do.

During the forming, all of the plurality of fibers are conveyed at substantially the same speed under the tension of the forming roll of the head portion and the object. In this case, if all the disk members are rotating at the same rotational speed, the diameter of the disk members is different, so the small-diameter disk member attempts to rotate at a speed higher than the fiber feed speed, and conversely, the large-diameter disk member Since the disc member tries to rotate at a speed slower than the fiber feed speed, slipping easily occurs between the disc member outer peripheral surface and the fiber in either the small-diameter disc member or the large-diameter disc member, and the fiber In some cases, the resin on the surface is peeled off and adheres to the disk member (roll), or the tension of the fiber becomes too large or too small, causing the fiber to be loosened. In the present invention, since each disk member is independently rotatable, it is possible to absorb the difference in the feed speed for each fiber and the difference in the rotation speed of each disk member. Slip can be prevented. For this reason, adhesion of the resin peeled from the fiber to the roll and slackening of the fiber due to slippage can be prevented, and stable supply of the fiber head can be achieved.

The invention according to claim 5 is the invention according to claim 3.
In the composite material forming apparatus according to the fourth aspect, the guide unit includes a partition member that partitions a plurality of fiber passages for each fiber.

According to the fifth aspect of the present invention, since the fiber passage in the guide portion is partitioned by the partition member, it is possible to completely prevent the fibers from coming into contact with each other while they pass through the guide portion and becoming entangled with each other. Can be
More stable supply of fiber can be realized.

In the case of molding a composite material having a complicated shape, it is necessary to carry a different feed amount for each fiber. However, in the present invention, since the fiber passage is divided by the partition member, the adjacent fibers are separated. It is possible to convey a different feed amount for each fiber while preventing friction between them.

According to a sixth aspect of the present invention, there is provided a composite material molding method for molding a plurality of fibers by pressing a plurality of fibers against an object by a head under heating, wherein the plurality of tape-like fibers are alternately arranged in the thickness direction. A transporting step of transporting each fiber separately and independently, and a guiding step of aligning and inserting the plurality of transported fibers into the head section by sandwiching them from both sides at an upstream position with respect to the head section. It is characterized by having.

In the invention according to claim 6, claim 1 is
Similarly to the invention according to claim 2, since a plurality of tape-like fibers are conveyed while being alternately shifted in the thickness direction, even if the width between the tape-like fibers becomes narrower during the conveyance, the tape-like fibers come into contact with each other. The fibers can be stably supplied to the head without being entangled. Further, since the plurality of fibers do not come into contact with each other during transportation, a wider fiber than that used in the conventional molding apparatus can be used, and the processing time for molding can be reduced. In addition, since each fiber is transported independently, it is possible to prevent the fiber from slipping due to the transport of another fiber. Furthermore, the fibers conveyed in an alternately displaced state are sandwiched from both sides by the guiding process and aligned in a line, so that the pressing force applied to the fibers is minimal, and the clogging of the fibers is prevented and the fibers are transferred to the head. Can be supplied stably.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a composite material forming apparatus and a composite material forming method according to the present invention will be described below in detail with reference to the accompanying drawings.

(First Embodiment) FIG. 1 is an overall configuration diagram of a composite material molding apparatus according to a first embodiment. The composite material molding apparatus according to the present embodiment is configured to simultaneously transport a plurality of tape-like fibers 1 having a width of about 1 to 10 mm to perform molding. As shown in FIG. 1, the composite material forming apparatus of the present embodiment includes a supply roll 2 and a pair of four guide rollers 3, 4,
5, 6, a guide 7 and a pair of pinch rollers 13
And a molding head 8.

The supply roll 2 supplies a plurality of tape-shaped fibers 1 to the forming head 8 simultaneously by rotating the plurality of rolls axially. A pair of guide rollers 3, 4, 5, 6
Transports the tape-like fiber 1 from the supply roll 2 to the forming head 8 while holding the tape-like fiber 1 from both sides. FIG. 2 is a cross-sectional view showing an arrangement of a plurality of tape-like fibers 1 being conveyed in the composite molding apparatus according to the present embodiment. FIG. 3 is a configuration diagram showing a configuration of the pair of guide rollers 3, 4, 5, and 6. As shown in FIG.

As shown in FIG. 2, the plurality of tape fibers 1 are spaced from each other in the thickness direction and are alternately shifted.
In addition, the sheet is conveyed without leaving an interval in the width direction. The pair of guide rollers 3, 4, 5, and 6 have a plurality of fibers 1 sandwiched from both sides on the outer peripheral surface thereof and are fed to a forming head 8. As shown in FIG. 3, the pair of guide rollers 3, 4, 5, and 6 are configured by alternately stacking two types of disk members 14 having different diameters.
The outer circumference of the entire 4,5,6 is a plurality of conveyed fibers 1
It has an irregular shape corresponding to the deviation. In other words,
The difference in the diameter of each disk member 14 corresponds to the displacement (interval) in the thickness direction of the plurality of fibers 1 to be conveyed. Each of the disk members 14 is mounted on a roller shaft via a bearing 18, so that each of the disk members 14 can be independently and independently rotatable.

As described above, since each of the disk members 14 can rotate independently, the difference in the feed speed of each fiber 1 and the difference between the rotation speed of the large-diameter disk member 14 and the rotation speed of the small-diameter disk member 14 are absorbed. The slip between the outer peripheral surface of the disk member 14 and the fiber 1 can be prevented. For this reason, it is possible to prevent the resin peeled from the fiber 1 from adhering to the roll and loosening of the fiber 1 due to the slip, and it is possible to stably supply the head of the fiber 1.

The pair of pinch rollers 13 form a plurality of fibers 1 remaining between the guide rollers 3, 4, 5, and 6 after cutting after the fiber 1 is cut by the end of molding and before the start of the next molding. Is fed out to the forming head 8 by rotating the shaft while sandwiching it from both sides (hereinafter, feeding out the cut fiber 1 to the forming head 8 is referred to as "idling"). FIG. 4 is an explanatory diagram showing the state of the pair of pinch rollers 13 during idle feeding, and FIG. 5 is an explanatory diagram showing the state of the pair of pinch rollers 13 during molding.

As shown in FIGS. 4 and 5, the pair of pinch rollers 13 are connected to a driving device (not shown), and a driving roller 13b which rotates by driving the driving device, and a driving device which drives the fiber 1 at idle. And a driven-side roller 13a that rotates following the shaft rotation of the side roller 13b. During the idle feeding of the fiber 1, the plurality of fibers 1 are sandwiched and fed out by the driving roller 13 b and the driven roller 13 a. During the formation of the fiber 1, the shaft 15 c is connected to the driven roller 13 a by the driving side. Roller 13
There is a gap on the outer peripheral surface by moving in the direction away from b. For this reason, the feeding operation is not performed on the fiber 1 during the molding of the fiber 1. Also,
As shown in FIG. 4, the drive-side roller 13b and the driven-side roller 13a are formed by laminating disk members 14 having different diameters which can be rotated independently and independently, similarly to the guide rollers 3, 4, 5, and 6. The difference in diameter corresponds to the displacement (interval) in the thickness direction of the plurality of conveyed fibers 1.

The guide 7 sandwiches and aligns a plurality of fibers 1 conveyed alternately in the thickness direction from both sides at an upstream position with respect to the pressure roller 9 (a position in front of the pressure roller 9). It is introduced into the pressure roller 9 (to eliminate the deviation). 6A is an end view on the entrance side of the guide 7, FIG. 6B is an end view on the exit side, FIG. 6C is a side perspective view, and FIG. 6D is an arrow XX. It is sectional drawing. FIG.
As shown in (a) to (d), the height of the passage 15 of the fiber 1 of the guide 7 gradually decreases from the entrance side to the exit side, and the height direction of the passage 15 is the thickness of the fiber 1. Corresponds to the direction. For this reason, the plurality of conveyed fibers 1 are conveyed to the entrance of the guide guide 7 while being shifted in the thickness direction, but are pressed from above and below (thickness direction) while passing through the guide guide 7, On the exit side, the fibers 1 are aligned and led out in a state where the displacement of the fibers 1 in the thickness direction has been eliminated.

The molding head 8 is rotatable around a rotation axis by driving a motor M1, and is movable up and down in FIG. 1 by driving a motor M2. The molding head 8 is arranged at a desired position by driving the motors M1 and M2. Further, a pressure roller 9 is provided on the forming head 8 as shown in FIG. The pressure roller 9 is composed of a plurality of fibers 1 derived from the guide 7.
The fiber 1 is attached (press-bonded) to the object by rotating while pressing on the object.

A molding method using the composite material molding apparatus configured as described above will be described. First, the motor M1
Then, the molding head 8 is moved to a desired position in accordance with the position of the object by driving the motor M2. Then, a plurality of tape-like fibers 1 are pulled out from the supply roll 2,
It is introduced into the forming head 8 via the guide rollers 3, 4, 5, 6. At this time, the driven roller 13 of the pinch roller 13
a to move the pair of pinch rollers 13 (the driven roller 1).
The plurality of fibers 1 are sandwiched between 3a and the driving roller 13b), and the driving roller 13b is rotated. As a result, a certain tension is applied to the plurality of fibers 1 by the pinch roller 13, and the fibers 1 are idlely fed to the pressure roller 9.

When the initial setting is completed, the driven roller 13a is moved to separate the driven roller 13a from the driving roller 13b, and the target roller is moved while rotating the pressure roller 9. At this time, the plurality of fibers 1 are unwound from the supply roll 2 with the movement of the pressure roller 9 and are conveyed to the pressure roller 9. Here, since the guide rollers 3, 4, 5, 6 and the pair of pinch rollers 13 are formed by laminating disk members 14 having different diameters, the plurality of fibers 1 are alternately shifted in the thickness direction. , And is conveyed without any deviation in the width direction.

The plurality of fibers 1 conveyed in such a manner that they are alternately displaced in the thickness direction pass through the passage 15 inside the guide 7 so that the fiber 1 moves from the inner wall surface of the guide guide in the thickness direction of the fiber 1. The pressing force acts. For this reason, the fiber 1 that is shifted in the thickness direction passes through the passage 1.
5, the deviation is eliminated as the vehicle passes through the guide guide outlet. When the plurality of fibers 1 are introduced into the pressure roller 9, the fibers 1 are aligned in such a manner as described above, so that the fibers 1 can be attached to the object by the pressure roller 9.

As described above, in the present embodiment, since the guide 7 sandwiches and aligns the tape-like fiber 1 from its thickness direction, the pressing force applied to the fiber 1 from the guide 7 is only small, and the fiber 1 Is not clogged in the guide guide 7 part. Therefore, stable supply of the fiber 1 to the molding head 8 can be realized.

When the application of the fiber 1 to the object by the pressure roller 9 is completed by a desired amount, the rotation of the pressure roller 9 is stopped and the fiber 1 is cut. Then, the fiber 1 remaining between the rolls after being cut by the pair of pinch rollers 13 is sandwiched, and the fiber 1 is
To empty. Then, the fiber 1 is attached to the object in the same manner as described above.

As described above, in the composite material molding apparatus according to the present embodiment, the guide rollers 3, 4, 5, and 6 move the plurality of tape-shaped fibers 1 alternately in the thickness direction of the molding head 8 so as to be applied. Since the tape-shaped fibers 1 are conveyed to the pressure roller 9, they do not come into contact with each other even if the width between the tape-shaped fibers 1 becomes narrower during the conveyance, so that the fibers 1 can be stably supplied to the forming head 8.

Further, since the plurality of fibers 1 do not come into contact during transportation, a wide fiber can be used.
Even when the fiber 1 is adhered to an object having a large area, the pressure roller 9 does not need to reciprocate over the surface of the object many times, and the processing time for molding can be reduced.

(Embodiment 2) Next, a composite material forming apparatus according to Embodiment 2 will be described. The composite material forming apparatus according to the second embodiment is different from the apparatus according to the first embodiment only in the configuration of the guide. Therefore, the description of the overall configuration diagram and the components other than the guide is omitted using the same drawings as in the first embodiment. I do. FIG. 7 is a configuration diagram of a guide 7 used in the composite molding apparatus according to the second embodiment, and FIG.
7 (b) is an end view as viewed from the outlet side of the fiber 1, FIG. 7 (c) is a side perspective view, and FIG.
(D) is a perspective plan view.

The guide 7 in the present embodiment is also similar to the guide used in the molding apparatus in the first embodiment.
The plurality of fibers 1 conveyed alternately displaced in the thickness direction are moved to an upstream position with respect to the pressure roller 9 (the pressure roller 9).
At the front of the guide roller 7), the fibers are sandwiched and aligned from both sides and introduced into the pressure roller 9. The passage height of the fiber 1 of the guide 7 gradually decreases from the entrance side to the exit side. Further, in the present embodiment, as shown in FIG.
A partition member having a thickness of about 1 to 10 mm for dividing the passage 15 of the fiber 1 for each fiber 1 is provided. For this reason, each fiber 1 is divided into divided passages 1 by a partition member.
It is aligned while passing through 5a. Although a gap in the width direction is generated between the fibers 1 by the thickness of the partition member, the fiber and the resin slightly spread in the width direction when the fiber 1 is pressed against the object by the pressing roller. The problem is solved and no problem occurs.

As described above, in the present embodiment, since the passage 15 of the fiber 1 of the guide 7 is divided by the partition member, it is possible to prevent the fibers 1 from coming into contact with each other even while passing through the guide. This can be completely prevented, and a more stable supply of the fiber 1 can be realized. Since there is no friction between the adjacent fibers 1, it is possible to carry each fiber 1 with a different feed amount, and it is possible to easily form a composite material having a complicated shape. (Embodiment 3)

Next, a composite material forming apparatus according to the third embodiment will be described. The composite material forming apparatus according to the third embodiment differs from the apparatus according to the first embodiment only in the configuration of the guide rollers. Therefore, the entire configuration diagram and each part other than the guide rollers are the same as those in the first embodiment, and description thereof is omitted. I do. FIG.
Guide Roller 17 Used in Composite Molding Apparatus of Third Embodiment
It is a block diagram of a and 17b. In the first embodiment, the pair of guide rollers are formed by laminating the disc members 14 having different diameters, and the difference in the diameter corresponds to the displacement in the thickness direction of the fiber 1. However, the guide rollers used in the present embodiment are: As shown in FIG. 8, the pair of guide rollers 17a and 17b is constituted by a pair of guide rollers 17a and 17b, and the distance between the outer peripheral surfaces of each pair of guide rollers 17a and 17b corresponds to the displacement of the fiber 1 in the thickness direction. .

As described above, in the composite material forming apparatus according to the present embodiment, the guide roller conveys the plurality of tape-like fibers 1 to the pressing roller 9 of the forming head 8 while being alternately shifted in the thickness direction. Even when the width between the tape-shaped fibers 1 is reduced during the conveyance, the fibers 1 do not come into contact with each other and become entangled with each other, so that the fibers 1 can be stably supplied to the molding head 8.

Further, since the plurality of fibers 1 do not come into contact during transportation, a wide fiber can be used.
Even when the fiber 1 is adhered to an object having a large area, the pressure roller 9 does not need to reciprocate over the surface of the object many times, and the processing time for molding can be reduced.

[0049]

As described above, according to the first aspect of the present invention, the transporting means transports the plurality of tape-like fibers to the head portion while being alternately shifted in the thickness direction. Even if the width between the tape-shaped fibers becomes narrower, the fibers do not come into contact with each other and become entangled with each other, so that the fibers can be stably supplied to the head portion. Also, since multiple fibers do not come in contact during transport, wider fibers can be used,
Even when affixing the fiber to an object having a large area, the processing time of molding can be shortened.

Further, according to the second aspect of the present invention, since the transport means transports each fiber independently, it is possible to prevent the fiber from slipping due to the transport of other fibers.

According to the third aspect of the present invention, the outer peripheral surfaces of the pair of rolls are formed with an irregular shape that meshes with each other,
Since each fiber is held between the meshing surfaces, it is possible to prevent the fiber from being entangled or clogged, and to achieve an effect of stably supplying the fiber to the head portion. In addition, a wide tape-shaped fiber can be used, and the processing time of molding can be shortened even for an object having a large area.

According to the fourth aspect of the present invention, since each disk member is rotatable independently and independently, it is possible to absorb a difference in feed speed for each fiber and a difference in rotation speed of each disk member. This has the effect that slip between the outer peripheral surface of the disk member and the fiber can be prevented. For this reason, it is possible to prevent adhesion of the resin peeled from the fiber to the roll and loosening of the fiber due to slippage,
This has the effect that the fiber head can be supplied stably.

According to the fifth aspect of the present invention, since the fiber passage in the guide portion is partitioned by the partition member, it is possible to completely prevent the fibers from coming into contact with each other while passing through the guide portion and becoming entangled with each other. This has the effect that the fiber can be prevented and a more stable supply of the fiber can be realized. In addition, it is possible to convey a different feed amount for each fiber while preventing friction between adjacent fibers, and it is possible to easily form a composite material having a complicated shape.

Further, according to the invention of claim 6, since a plurality of tape-like fibers are conveyed while being alternately shifted in the thickness direction, the effect that the fibers can be stably supplied to the head portion can be obtained. Have. In addition, since the plurality of fibers do not come into contact with each other during transportation, a wide fiber can be used, and the processing time of molding can be shortened. Further, since each fiber is transported independently, there is an effect that the slip of the fiber accompanying the transport of another fiber can be prevented. Furthermore, the fibers conveyed in an alternately shifted state are sandwiched from both sides by the guiding process and aligned in a line,
There is an effect that the clogging of the fiber can be prevented and the stable supply to the head can be performed.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an overall configuration of a composite material forming apparatus according to a first embodiment.

FIG. 2 is a cross-sectional view showing an arrangement of a plurality of tape-like fibers 1 being conveyed in the composite molding apparatus according to the first embodiment.

FIG. 3 is a diagram illustrating a configuration of a pair of guide rollers in the composite molding apparatus according to the first embodiment.

FIG. 4 is an explanatory diagram illustrating a state of a pair of pinch rollers during idle feeding of the composite molding apparatus according to the first embodiment.

FIG. 5 is an explanatory diagram illustrating a state of a pair of pinch rollers during molding of the composite molding apparatus according to the first embodiment.

6 (a) is a view showing an end face on the entrance side of the guide, FIG. 6 (b) is a view showing an end face on the exit side,
FIG. 6C is a perspective view showing the side surface, and FIG.
It is sectional drawing which shows -X arrow.

FIG. 7 (a) is a diagram showing an end face of a guide used in the composite molding apparatus according to the second embodiment as viewed from the inlet side of the fiber 1, and FIG. 7 (b) is a view from the outlet side of the fiber 1; It is a figure which shows the end surface seen, FIG.7 (c) is a perspective view which shows a side surface, and FIG.7 (d) is a perspective view which shows a plane.

FIG. 8 is a diagram showing a configuration of a guide roller used in the composite molding apparatus according to the third embodiment.

FIG. 9A is a diagram showing a configuration of a composite material molding apparatus as a conventional example, and FIG. 9B is a diagram showing a configuration of a molding head thereof.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 fiber 2 supply roll 3, 4, 5, 6 guide roller 3 a roller shaft 7 guide guide 8 forming head 9 pressure roller 10, 11 rotation shaft 12 telescopic shaft 13 pinch roller 13 a driven roller 13 b drive roller 13 c roller shaft 14 Disc member 15 Passage 15a Split passage 16 Partition member 17a, 17b Guide roller 18 Bearing

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Akihiro Maekawa 2-1-1 Shinhama, Arai-cho, Takasago-shi, Hyogo F-term in Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd. 4F205 AD16 AH31 HA17 HA22 HA37 HA46 HB01 HE16 HG04 HK01 HK22 HK29

Claims (6)

[Claims] A composite material molding apparatus for molding a composite material by pressing a plurality of fibers against an object under heating by a head unit, wherein a plurality of tape-like fibers are alternately shifted in a thickness direction thereof. A composite material molding apparatus, comprising: a transport unit that transports the composite material to a head unit. 2. The apparatus according to claim 1, wherein said transport means transports each of said fibers separately and independently.
A composite material molding apparatus according to claim 1. 3. The transporting means comprises: a pair of rolls, each of which has an outer peripheral surface formed into an uneven shape that meshes with each other, sandwiches and sends out each fiber at each meshing surface, and 3. A guide portion which is inserted from both sides at the upstream position and is introduced into the head portion.
A composite material molding apparatus according to claim 1. 4. Each of the pair of rolls is formed by laminating a plurality of disk members having different diameters in a roller axial direction, and each of the disk members is independently rotatable. A composite material molding apparatus according to claim 1. 5. The composite material forming apparatus according to claim 3, wherein the guide section includes a partition member that partitions a plurality of fiber passages for each fiber. 6. A composite material molding method for molding a composite material by pressing a plurality of fibers against an object under heating by a head portion, wherein a plurality of tape-like fibers are alternately shifted in a thickness direction thereof. A transporting step of independently transporting each fiber, and a guiding step of aligning and introducing the plurality of transported fibers into the head portion by sandwiching them from both sides at an upstream position with respect to the head portion. Composite molding method.