JP2014133340A - Apparatus and method for producing composite material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus and a method for producing a composite material, in each of which prepregs can be layered on each other without being meandered, even when the prepregs are layered on each other by using a long mold having a curved surface, on which surface the prepregs are layered, and in each of which the air between the adjacent prepreg layers can be withdrawn satisfactorily.SOLUTION: The apparatus for producing the composite material by layering sheet-shaped prepregs, each of which is obtained by impregnating a reinforcing fiber with a resin, on each other on the long mold includes: a prepreg supply mechanism; and an air release mechanism. The prepreg supply mechanism includes: a prepreg unwinding means; a position correcting means for correcting the position of the prepreg; and a means for making notches parallel to the direction of the fiber in the prepreg. The air release mechanism includes a means for withdrawing the air between the adjacent prepreg layers while forcing a pressing device to press the layered prepregs. The means for making notches in the prepreg includes a means for discontinuously making notches parallel to the direction of the fiber in the prepreg.

Description

  The present invention relates to a composite material manufacturing apparatus and manufacturing method.

Fiber reinforced composite materials are used in a wide range of applications due to their light weight and high strength properties. For example, airplanes, ships, rail cars, automobiles, golf clubs, tennis rackets, etc. are used as substitutes for metal materials in automobiles and airplanes for sports and leisure applications. It is widely used for industrial applications such as.
The fiber-reinforced composite material may be produced by laminating a sheet-like prepreg in which a reinforcing fiber such as carbon fiber is impregnated with a thermosetting resin or a thermoplastic resin on a long mold, and then curing.

  However, when sheet-like prepregs are manually laminated, the prepregs are likely to meander without being laminated straight, or wrinkles are generated in the prepregs, and the strength of the resulting composite material may be reduced. Further, when the next prepreg is laminated on the prepreg laminated on the mold, air may enter between the prepreg layers. When air enters between prepreg layers, voids remain in the resulting composite material, and the strength tends to decrease. In particular, when a prepreg is laminated using a mold having a curved surface where the prepreg is laminated in the cross section in the width direction of the mold, the problems of meandering of the prepreg and air intrusion between the prepreg layers are remarkable.

As an apparatus for automatically laminating a prepreg on a mold, for example, in Patent Document 1, a base material (mold) is attached while a prepreg sheet pulled out from a paper tube is attached with a predetermined pressing force by a pressure roller that presses while rotating. An automatic prepreg laminating apparatus for laminating is disclosed.
Non-Patent Document 1 discloses a method of laminating sheets while pressing the sheets with rollers.

JP 2006-218720 A

“Automated Tape Laying”, [online], Automated Dynamics, Inc. [searched May 31, 2011], Internet <URL: http: //www.automateddynamics.com/content/automated_tape_laying>

  However, as described in Patent Document 1 and Non-Patent Document 1, it is not always easy to sufficiently extract air between prepreg layers even when the prepreg is laminated while being pressed by a roller. In particular, when the prepreg is laminated using a mold having a curved surface on which the prepreg is laminated, the apparatus described in Patent Document 1 and the method described in Non-Patent Document 1 cannot sufficiently cope with it. If these devices and methods were used to laminate the prepreg on a mold having a curved surface on which the prepreg was laminated, air was likely to remain between the prepreg layers. For this reason, in the oven molding method, air may remain between prepreg layers, and a high-quality molded product may not be obtained.

  The present invention has been made in view of the above circumstances, and even when a prepreg is laminated using a long mold having a curved surface on which the prepreg is laminated, the prepreg can be laminated without meandering, and between the prepreg layers. It is an object of the present invention to provide an apparatus and a method capable of producing a composite material from which air is sufficiently extracted.

(1) The composite material manufacturing apparatus of the present invention is an apparatus for manufacturing a composite material by laminating sheet-like prepregs in which reinforcing fibers are impregnated with a resin on a long mold,
A prepreg supply mechanism that supplies the prepreg onto the mold while moving from one end to the other end in the longitudinal direction of the mold, and air between the prepreg layers stacked on the mold while moving from one end to the other end in the longitudinal direction of the mold. An air vent mechanism,
The prepreg supply mechanism includes a prepreg unwinding means for unwinding the laminate while applying tension from a roll-like product in which the laminate of the prepreg and the release paper is wound in a roll shape, and the prepreg is placed at a predetermined position of the mold. A position correcting means for correcting the position of the prepreg so as to be laminated; and a means for cutting in a direction parallel to the fiber direction of the prepreg, wherein the air venting mechanism includes a plurality of circles arranged side by side adjacent to each other. Comprising means for holding the prepreg laminated by a pressing device comprising a plate and extracting air between the prepreg layers;
The mechanism for incising the prepreg is characterized in that means for discontinuously incising is arranged parallel to the prepreg fiber direction.

(2) The composite material manufacturing apparatus of the present invention is an apparatus according to (1), wherein a composite material is manufactured by laminating a sheet-like prepreg in which a reinforcing fiber is impregnated with a resin on a long mold.
Means is provided for correcting the position of the prepreg to be stacked on the mold by moving the prepreg supply mechanism to the left and right with respect to the longitudinal direction of the mold.

(3) The composite material manufacturing apparatus of the present invention is the apparatus according to (1) or (2), wherein a composite material is manufactured by laminating a sheet-like prepreg in which a reinforcing fiber is impregnated with a resin on a long mold. There,
A means for simultaneously laminating two or more prepregs on a mold is provided.

(4) Moreover, the manufacturing method of the composite material of this invention is a manufacturing method which manufactures a composite material by laminating | stacking the sheet-like prepreg which resin impregnated the reinforcement fiber on the elongate type | mold,
A prepreg supply step of supplying the prepreg onto the mold while moving from one end of the mold in the longitudinal direction to the other end, and extracting air between the prepreg layers stacked on the mold while moving from one end to the other end in the longitudinal direction of the mold An air venting process,
The prepreg supply step includes a process of unwinding a prepreg that unwinds the laminate while applying a tension from a roll obtained by winding the laminate of the prepreg and release paper into a roll, and the prepreg is placed at a predetermined position of the mold. It has a position correction process for correcting the position of the prepreg so as to be laminated, and a process of making incisions parallel to the fiber direction of the prepreg, and the air bleeding process is performed from a plurality of disks arranged side by side. A process of extracting the air between the prepreg layers by pressing the prepreg laminated by the pressing device,
The step of cutting into the prepreg is characterized by cutting in a discontinuous manner parallel to the prepreg fiber direction.

(5) The method for producing a composite material of the present invention is the method of (4) above, wherein a composite material is produced by laminating a sheet-like prepreg in which a reinforcing fiber is impregnated with a resin on a long mold.
The prepreg supply mechanism is moved to the left and right with respect to the longitudinal direction of the mold, and the position of the prepreg to be laminated on the mold is corrected and laminated.

(6) The method for producing a composite material of the present invention is as described in (4) or (5) above, wherein the composite material is produced by laminating sheet-like prepregs in which reinforcing fibers are impregnated with a resin on a long mold. A manufacturing method comprising:
A step of supplying two or more prepregs, wherein two or more prepregs are simultaneously laminated on a mold.

  According to the composite material manufacturing apparatus and manufacturing method of the present invention, even when a prepreg is stacked using a long mold having a curved surface on which the prepreg is stacked, the prepreg can be stacked without meandering, and the prepreg can be stacked. A composite material from which air between layers has been sufficiently extracted can be manufactured.

It is a side view which shows typically an example of the manufacturing apparatus of the composite material of this invention. It is a side view of the apparatus typically shown of the manufacturing apparatus of the composite material shown in FIG. It is a front view of the apparatus typically shown of the manufacturing apparatus of the composite material shown in FIG. It is a top view of the apparatus typically shown of the manufacturing apparatus of the composite material shown in FIG. It is a figure which shows the movable range by a position correction means with the apparatus typically shown of the manufacturing apparatus of the composite material shown in FIG. It is a figure which shows the movable range by a position correction means with the apparatus typically shown of the manufacturing apparatus of the composite material shown in FIG.

Hereinafter, the present invention will be described in detail with reference to the drawings.
(Composite material manufacturing equipment)
FIG. 1 is a side view schematically showing an example of the composite material manufacturing apparatus of the present invention.
In this example, the composite material manufacturing apparatus 1 includes a prepreg supply mechanism 20 that supplies a sheet-like prepreg 11 on a long mold M, and an air vent mechanism 30 that extracts air between layers of the prepreg 11 stacked on the mold M. It comprises.

(Prepreg supply mechanism)
The prepreg supply mechanism 20 includes a prepreg unwinding means 21 for unwinding the laminate 10 while applying a tension from a roll-like product 10 ′ in which the laminate 10 of the prepreg 11 and the protective film is wound into a roll, and the prepreg 11. Is provided with position correcting means 22 for correcting the position of the prepreg 11 so as to be stacked at a predetermined position of the mold M.

The prepreg unwinding means 21 and the position correcting means 22 in this example are mounted on a carriage 23, and the carriage 23 moves the prepreg supply mechanism 20 from one end to the other end in the longitudinal direction of the mold M. The prepreg 11 is supplied onto the mold M.
Here, each means of the prepreg supply mechanism 20 will be described with reference to FIGS. 2 a is a side view of the prepreg supply mechanism 20, FIG. 2 b is a front view of the prepreg supply mechanism 20, and FIG. 2 c is a top view of the prepreg supply mechanism 20. In FIG. 2b, a roll-like object 10 ′ in which a laminate of the prepreg 11 and the protective film is wound on the roll is indicated by a two-dot chain line, and in FIG. 2c, the laminate of the prepreg 11 and the protective film is wound on the roll. The rolled product 10 ′ is indicated by a two-dot chain line. Further, FIGS. 2D and 2E are views showing a movable range in which the prepreg supply mechanism 20 can be moved by the position correction means.

(Roll material)
The roll-shaped object 10 ′ is obtained by winding a laminate 10 of a prepreg 11 and a protective film in a roll shape around a paper tube or the like.
The prepreg 11 is obtained by impregnating a reinforcing fiber with a resin.
Examples of the reinforcing fibers include organic high elastic fibers such as carbon fibers, glass fibers, and polyaramid fibers, and high strength and high elastic fibers such as boron fibers and alumina fibers. Among these, carbon fiber is preferable because it is excellent in specific strength and specific elasticity.

Examples of the resin include a thermosetting resin and a thermoplastic resin.
Examples of thermosetting resins that can be used include epoxy resins, unsaturated polyester resins, phenol resins, urea resins, melamine resins, diallyl phthalate resins, urethane resins, polyimide resins, and mixed resins thereof. can do.
Among these, epoxy resins are preferred because they have a low cure shrinkage and high rigidity and toughness.
Further, the present invention technique can be used without any problem even when it is a thermoplastic resin without being limited to a thermosetting resin.

(Prepreg unwinding means)
The prepreg unwinding means 21 is a means for unwinding the laminate 10 while applying tension from the roll-shaped object 10 ′.
The unwinding means 21 includes a support shaft 21 a that rotatably supports the roll-shaped object 10 ′, removable frame bodies 21 b provided at both ends of the support shaft 21 a, and an unwinding guide member 21 c that guides the laminate 10. And have.
The unwinding means 21 may have two or more layers. The unwinding means 21 is provided with tension applying means (not shown) for applying tension to the laminate 10 so that the laminate 10 can be unwound while applying tension.

(Position correction means)
The position correction means 22 is a means for correcting the position of the prepreg 11 by moving the position correction 22 in the width direction of the mold M on the carriage 23 so that the prepreg 11 is stacked at a predetermined position of the mold M.
The position correction means 22 can correct the position of the prepreg stacked on the mold by moving the prepreg supply mechanism.
The position correction means 22 corrects the position of the prepreg 11 by moving in the width direction of the mold M as shown in FIGS. Further, as shown in FIG. 2b, the position correction means 22 of this example moves in the width direction of the mold M, detects the position of the prepreg 11, corrects the position, and applies tension to the prepreg 11, while 11 can be stacked close to the mold M.

(Means to cut parallel to the fiber direction of the prepreg)
The means for making a cut parallel to the fiber direction of the prepreg has a member 21d for making a cut in the fiber direction of the prepreg as shown in FIG.
By means of incision, incisions are intermittently made with a blade in a direction parallel to the fiber direction of the prepreg. Moreover, if a notch | incision enters into the thickness direction of a prepreg, it will not be limited to a cutter. Furthermore, since it becomes difficult to continuously cut when the resin adheres to the blade, it is preferable to cut from the protective film side. If the prepreg is continuously cut and tension is applied to the prepreg, the form-retaining property is lowered and wrinkles are likely to enter the prepreg.

(Air bleeding mechanism)
The air bleeding mechanism 30 includes a pressing unit 30 that is supplied from the prepreg supply mechanism 20 and extracts air between the layers of the prepreg 11 stacked on the mold M.
In this example, the air vent mechanism 30 has a disk-like plate presser 31 attached to the carriage 23 via presser support portions 32 and 32 supported by the carriage 23 and a bar member 33, and is linked to the prepreg supply mechanism 20. Then, the air between the layers of the prepreg 11 stacked on the mold is extracted while moving from one end to the other end in the longitudinal direction of the mold M.
As shown in FIG. 2c, the air bleeding mechanism 30 has a pressing device composed of a plurality of disks arranged side by side and adjacent to each other, and these disks form a cylindrical shape. The pressing device 31 abuts the peripheral surface thereof on the prepreg 11, presses the prepreg 11 against the mold M by its own weight, and extracts air between the prepreg 11 layers.
Further, the air vent mechanism 30 is arranged so as to press the central portion of the prepreg 11 in the width direction against the mold M before both end portions. The air vent mechanism 30 may be arranged separately from the pressing device 31 or may be arranged so that the center portion of the mold M is pressed first and both end portions are pressed later.

  By pressing the central portion of the prepreg 11 in the width direction against the mold M before both ends, air between the prepreg 11 layers is released in order from the center in the width direction of the prepreg 11 toward the end at the contact portion with the prepreg 11. It becomes like this. Therefore, the occurrence of air accumulation can be suppressed, and voids are less likely to remain when a composite material is used. Further, as shown in FIG. 2b, in the cross section in the width direction of the mold M, even when the surface on which the prepreg 11 of the mold M is laminated is curved, the air between the prepreg 11 layers can be sufficiently extracted.

That is, when the pressing device is arranged so that both end portions of the prepreg in the width direction are pressed against the mold before the center portion, air gathers at the center in the width direction of the prepreg at the contact portion with the prepreg Therefore, it is difficult to extract air sufficiently. In particular, if a mold having a curved surface on which the prepreg is laminated is used, the air cannot be sufficiently extracted.
However, if it is this invention, since the pressing device is arrange | positioned so that the center part of the prepreg in the width direction may be pressed to a type | mold ahead of both ends, the air between prepreg layers can fully be extracted. In addition, even when a mold having a curved surface on which the prepregs of the mold are curved is used in the cross section in the width direction of the mold, the air between the prepreg layers can be sufficiently extracted by pressing the prepreg.

As the pressing device 31 moves the mold M, each disk rotates. By rotating the disc, the prepreg 11 can be prevented from being damaged by the pressing device 31.
Moreover, it is preferable that the disk of this example is donut shape by which the center was hollowed out. In order to reduce friction between the disks when the disks rotate, the material can be rotated more smoothly by coating a material with a low coefficient of friction such as polytetrafluoroethylene on the part where the disks are in contact. can do.

  The pressing device 31 is obtained, for example, by passing a donut-shaped disk as pressing means through a core rod. In this case, it is preferable to fix the discs located at both ends with fastening screws or the like so that the discs of the pressing means do not shift.

According to the composite material manufacturing apparatus 1 of the present invention described above, the position correction means 22 for correcting the position of the prepreg 11 while applying tension to the prepreg 11 is provided, so that the prepreg 11 does not meander on the mold M. Can be stacked.
In addition, since the air bleed mechanism 30 is arranged so that the central portion of the prepreg 11 in the width direction is pressed against the mold M before both ends, the prepreg in order from the center of the prepreg 11 in the width direction to the end. The air between the eleven layers is released, and the air between the prepreg layers can be sufficiently extracted. Moreover, since the cuts are made in the fiber direction of the prepreg in the thickness direction of the prepreg, the air between the prepreg 11 layers is sufficient even if the surface on which the prepreg 11 of the mold M is laminated is curved in the cross section in the width direction of the mold M. Can be extracted.
Therefore, according to the composite material manufacturing apparatus 1 of the present invention, a composite material from which air between prepreg layers is sufficiently extracted can be manufactured.

(Other embodiments)
The composite material manufacturing apparatus of the present invention is not limited to the illustrated example. For example, the air bleeding mechanism 30 of the composite material manufacturing apparatus 1 shown in FIG. 1 includes one pressing means, but is arranged so that the central portion of the prepreg 11 in the width direction is pressed against the mold M before both ends. If so, the number of pressing means is not limited, and a plurality of pressing means can be used. However, considering the cost, the number of pressing devices is preferably two to three.

(Production method of composite material)
The method for producing a composite material according to the present invention includes a supplying step of supplying a sheet-like prepreg on a long mold, a process of intermittently cutting in parallel to the fiber direction of the prepreg, and a prepreg at a predetermined position of the mold. A position correction process for correcting the position of the prepreg so as to be laminated, and a prepreg laminated by a pressing device composed of a plurality of discs in which the air between the prepreg layers laminated on the mold is arranged side by side. And a process of extracting air between the prepreg layers.
Hereinafter, an example of the composite material manufacturing method of the present invention will be described in detail using the composite material manufacturing apparatus 1 shown in FIG.

In the prepreg supply step, the prepreg 11 is sequentially supplied from one end to the other end of the mold M while moving the prepreg supply mechanism 20 from one end to the other end of the mold M in the longitudinal direction.
Specifically, first, the roll-like object 10 ′ is rotated by the support shaft 21b of the prepreg unwinding means 21, and the laminate 10 is guided to the guide roll 21c and the fiber direction of the prepreg while applying tension from the roll-like object 10 ′. The prepreg is intermittently cut and unwound through a member 21d that cuts parallel to the prepreg. At this time, it is preferable to cut from the protective film side of the prepreg. (Prepreg unwinding step).
Next, the position correction unit 22 moves the mold M in the width direction so as to be stacked at a predetermined position of the mold M (see FIGS. 2B and 2C), and corrects the position of the prepreg 11 (position correction process).
At this time, the position can be corrected by detecting the prepreg end. In this case, since the prepreg can be laminated without meandering, there is no reduction in strength due to generation of wrinkles, which is preferable.

In the air bleeding process, the air between the prepregs 11 stacked in the mold M is sequentially moved from one end to the other end in the longitudinal direction of the mold M while moving the air bleeding mechanism 30 from one end to the other end in the longitudinal direction of the mold M. Pull out.
Specifically, first, the circumferential surface of the front pressing means 31 is brought into contact with the prepreg 11 laminated on the mold M, the central portion of the prepreg 11 in the width direction is pressed against the mold M, and the air between the prepreg 11 layers is pressed from the central portion. Pull out. At this time, air between layers is extracted from the cut in the fiber direction of the prepreg. Therefore, the occurrence of air accumulation can be suppressed, and voids are less likely to remain when a composite material is used. Further, as shown in FIG. 2b, in the cross section in the width direction of the mold M, even when the surface on which the prepreg 11 of the mold M is laminated is curved, the air between the prepreg 11 layers can be sufficiently extracted.

  In addition, even if two or more layers are laminated at the same time, since the air is cut in the fiber direction of the prepreg, the air between the layers is released in the thickness direction, so that the air between the layers can be sufficiently extracted.

After the prepreg 11 is laminated on the mold M in this way, when the next prepreg is laminated, the composite material is moved in the direction opposite to the moved direction (from the other end in the longitudinal direction of the mold M). The manufacturing apparatus 1 is returned to the initial position. At this time, the composite material manufacturing apparatus 1 is rotated by 180 ° for each carriage using direction changing means such as a turntable at both ends in the longitudinal direction of the mold M to change the direction, and the stacking position is adjusted by the position correcting means. Then, it can be laminated again.
Then, the prepreg supply process and the air bleeding process are performed in the same manner as described above, and the prepreg 11 as the next layer is supplied to the mold M and is laminated on the prepreg already laminated in the mold M.
This operation is continued until the desired number of layers is reached to obtain a prepreg laminate. Next, the obtained prepreg laminate is cured to obtain a composite material.

According to the method for producing a composite material of the present invention described above, it is preferable to have a position correcting means for correcting the position of the prepreg 11 to which tension is applied, because the prepreg 11 can be laminated in the mold M without meandering.
In addition, the member 21d that cuts in the fiber direction of the prepreg is intermittently cut in the fiber direction of the prepreg, and in the air bleeding process, the central portion of the prepreg 11 in the width direction is pressed against the mold M before both ends. And press against the mold M to extract the air between the prepregs 11. The air between the prepreg 11 layers is released in order from the center in the width direction of the prepreg 11 and the air is also released in the thickness direction by cutting, so that the air between the prepreg layers can be sufficiently extracted. Moreover, in the cross section in the width direction of the mold M, air between the prepreg 11 layers can be sufficiently extracted even if the surface on which the prepreg 11 of the mold M is laminated is curved.
Therefore, according to the method for producing a composite material of the present invention, a composite material from which air between prepreg layers is sufficiently extracted can be produced.

The composite material obtained by the present invention is formed by an oven molding method because tension is applied to the prepreg, the prepreg is laminated without meandering, and air between the prepreg layers is sufficiently extracted. Also excellent in strength.
The composite material can be widely used from sports / leisure applications to industrial applications such as automobiles and airplanes, such as airplanes, ships, railway vehicles, automobiles, golf clubs, and tennis rackets.

DESCRIPTION OF SYMBOLS 1: Manufacturing apparatus of composite material 10: Laminate 10`: Rolled material 11: Prepreg 20: Supply mechanism 21: Prepreg unwinding means 21d: Member which cuts in the fiber direction of a prepreg 22: Position correction means 30: Air bleeding Mechanism 31: Pressing means F: Movement direction of position correcting means M: Type

Claims (8)

An apparatus for manufacturing a composite material by laminating a sheet-like prepreg in which a reinforcing fiber is impregnated with a resin on a long mold,
A prepreg supply mechanism that supplies the prepreg onto the mold while moving from one end to the other end in the longitudinal direction of the mold, and air between the prepreg layers stacked on the mold while moving from one end to the other end in the longitudinal direction of the mold. An air vent mechanism,
The prepreg supply mechanism includes a prepreg unwinding means for unwinding the laminate while applying tension from a roll-like product in which the laminate of the prepreg and the release paper is wound in a roll shape;
Position correcting means for correcting the position of the prepreg so that the prepreg is laminated at a predetermined position of the mold;
Means for cutting in parallel to the fiber direction of the prepreg, and the air bleeding mechanism presses the prepreg laminated by a pressing device composed of a plurality of disks arranged side by side and extracts air between the prepreg layers. Comprising means,
The mechanism for incising the prepreg is an apparatus for manufacturing a composite material, comprising means for incising discontinuously parallel to the prepreg fiber direction.   The apparatus for manufacturing a composite material according to claim 1, wherein in the mechanism for cutting into the prepreg, means for cutting into the prepreg is arranged on the protective film side of the prepreg.   The composite material manufacturing method according to any one of claims 1 and 2, further comprising means for correcting a position of the prepreg to be stacked on the mold by moving the prepreg supply mechanism to the left and right with respect to the longitudinal direction of the mold. apparatus.   The apparatus for producing a composite material according to claim 3, further comprising means for detecting a position of an end of the prepreg laminated on the mold and correcting the position of the prepreg.   Furthermore, the manufacturing apparatus of the composite material as described in any one of Claims 1-4 provided with the means to laminate | stack two or more layers of prepregs simultaneously on a type | mold. A manufacturing method for manufacturing a composite material by laminating a sheet-like prepreg in which a reinforcing fiber is impregnated with a resin on a long mold,
A prepreg supply step of supplying the prepreg onto the mold while moving from one end of the mold in the longitudinal direction to the other end, and extracting air between the prepreg layers stacked on the mold while moving from one end to the other end in the longitudinal direction of the mold An air venting process,
The prepreg supplying step includes a prepreg unwinding process of unwinding the laminate while applying a tension from a roll-like product in which the laminate of the prepreg and the release paper is wound in a roll shape, and the prepreg is placed at a predetermined position of the mold. It has a position correction process for correcting the position of the prepreg so as to be laminated, and a process of cutting in parallel to the fiber direction of the prepreg, and the air bleeding process is performed from a plurality of disks arranged side by side adjacent to each other. A process of extracting the air between the prepreg layers by pressing the prepreg laminated by the pressing device,
The process of incising the prepreg is a method for producing a composite material in which incisions are made discontinuously in parallel to the prepreg fiber direction.   Furthermore, the manufacturing method of the composite material of Claim 6 which has a process which corrects the position of the prepreg laminated | stacked on a type | mold by moving a prepreg supply mechanism right and left with respect to the longitudinal direction of a type | mold, and laminated | stacking.   The method for producing a composite material according to claim 6 or 7, further comprising a step of supplying two or more prepregs, and a step of simultaneously laminating two or more prepregs on a mold.