JP5408530B2 - Compression molding apparatus and method, and fiber reinforced composite material and preform manufacturing method - Google Patents

Description

The present invention relates to a compression shaping apparatus and method for shaping a reinforcing fiber base material containing reinforcing fibers and having an inclined surface into a predetermined shape, and a method for producing a fiber reinforced composite material and a preform using the method.

  Fiber reinforced plastic (FRP) using carbon fiber, glass fiber, or aramid fiber as a reinforcing fiber is lightweight and highly durable, making it ideal as a component for automobiles and aircraft. Material. As a method of molding this FRP, for example, a reinforcing fiber base material composed of a laminate in which a plurality of reinforcing fiber materials are laminated is sandwiched between and pressed by opposing molds and shaped into a predetermined shape, and the impregnating resin is cured. Thus, a method of forming a FRP having a predetermined shape is known.

  As the reinforcing fiber base, for example, a prepreg sheet formed by arranging a plurality of reinforcing fibers in a sheet shape and impregnating a matrix resin such as an epoxy resin into a sheet shape is used. A plurality of the prepreg sheets are laminated, and the matrix resin is cured by pressurizing and heating in a mold to form a FRP having a predetermined shape. Further, FRP molding using a dry reinforcing fiber base material not impregnated with a matrix resin is also performed. This is a molding method called a Resin Transfer Molding (hereinafter referred to as RTM) molding method or a vacuum RTM molding method. For example, a plurality of reinforcing fiber materials to which an interlayer adhesive resin is added are laminated, and the laminated body is molded with a mold. After forming and forming an intermediate molded product called a preform, a low-viscosity liquid matrix resin is injected into the preform and cured.

  In forming these FRPs, an apparatus for manufacturing a beam member having an I-shaped or H-shaped cross-sectional shape is also known (see, for example, Patent Document 1). This is an apparatus for forming a long molded product by repeatedly shaping a laminated body with a mold into a predetermined cross-sectional shape, then opening the mold, moving the laminated body by a predetermined amount, and shaping again. . By using such an apparatus, it is possible to manufacture a beam member having a uniform cross-sectional shape in the longitudinal direction with a small mold without using a large mold for the entire length of the beam member. it can.

  However, for example, when a cantilever structure is considered, it is generally required that the beam member supporting the structure has higher rigidity toward the root. Therefore, in a laminate for manufacturing a long molded product, this requirement is met by increasing the number of laminated reinforcing fiber materials (the thickness of the laminate molded product) with respect to the base in the longitudinal direction. Yes. On the other hand, the above-mentioned prior art is basically formed in order with a cross section having a constant shape and a constant thickness, and therefore cannot meet such a change in thickness of the molded product. That is, when the number of reinforcing fiber materials is changed with respect to the longitudinal direction, and the thickness of the reinforcing fiber base material to be shaped into a predetermined shape changes accordingly, the reinforcing fibers to be shaped There will be an inclined surface in the base material part, but in the conventional shaping technology in which the cross-section of the basic shape and the constant thickness are sequentially formed, the reinforcing fiber base material having such an inclined surface exists. It was difficult to accurately shape the part into a predetermined shape.

  Moreover, a compression shaping apparatus is known as a method for increasing the number of laminated reinforcing fiber base materials (thickness of a laminate molded product) in the longitudinal direction (Patent Document 2). However, in the method of inserting a sheet-like clearance adjustment member between molds in response to changes in the number of laminated reinforcing fiber bases, the reinforcing fiber bases are subject to local changes when there is a step and the number of laminated layers changes greatly. It was difficult to follow and it was difficult to shape into a predetermined shape.

JP 2001-191418 A JP 2008-179130 A

Therefore, in order to solve the above-described problems of the prior art, the object of the present invention is to cope with the inclined surface even when the thickness of the reinforcing fiber substrate changes and the reinforcing fiber substrate has an inclined surface. Another object of the present invention is to provide a compression molding apparatus and method that can be easily molded into a desired shape, and a method for producing a fiber-reinforced composite material and a preform using the method.

In order to solve the above-mentioned problems, the compression molding apparatus according to the present invention is shaped into a shape that follows the shape of the mold shaping surface by pressing a reinforcing fiber substrate containing reinforcing fibers between the molds. And at least two molds, mold driving means for opening and closing the at least one mold to pressurize and open the reinforcing fiber base, and the reinforcing fiber base to the mold in accordance with the opening and closing operation by the mold A reinforcing fiber base compression molding apparatus having a conveying means for carrying in and out of the mold, wherein the mold shaping surface of at least one of the molds conveys the reinforcing fiber base and parallel surface parallel to the direction, without any step being articulated lifting Chi combination of the inclined surface inclined with respect to the transport direction in the parallel plane, further, reinforcing fibers the compression shaping apparatus, which is transported in the transport direction The position of the inclined part on the surface of the substrate accompanying the change in thickness in the longitudinal direction of the substrate A base material inclined portion detecting means for, consisting of those characterized by having a conveyance control means for controlling the transport of the reinforcing fiber substrate based on the information detected by the base material inclined portion detection means.

  Such a compression shaping apparatus is suitable, for example, when the reinforcing fiber base is composed of a laminate of sheet materials containing reinforcing fibers, the number of stacked layers is changed, and the reinforcing fiber base has an inclined surface accordingly. Is something. The sheet material containing the reinforcing fibers can be either a prepreg in which a reinforcing fiber material is impregnated with a matrix resin or a dry reinforcing fiber material that does not contain a matrix resin.

  In such a compression shaping apparatus according to the present invention, the mold shaping surface of the mold that opens and closes the mold and sequentially press-molds the reinforcing fiber base is transported of the reinforcing fiber base. Since it has both a parallel plane parallel to the direction and an inclined plane inclined with respect to the conveying direction, the reinforcing fiber substrate portion whose substrate surface should be formed into an inclined plane has been conveyed to the pressurizing part by the mold In this case, the mold has a parallel surface (surface with a constant substrate thickness) parallel to the conveying direction and a conveying direction with respect to the target shaping shape of the surface of the reinforcing fiber substrate in the longitudinal direction of the reinforcing fiber substrate. It becomes possible to simultaneously shape both the inclined surface inclined with respect to the surface (the surface on which the substrate thickness changes). That is, by using a mold having a mold shaping surface that has both a parallel surface and an inclined surface of the reinforcing fiber substrate to be shaped, the substrate can be easily parallelized with a predetermined mold without any special operation. The surface, the inclined surface, and the boundary between them are shaped into a target shape at the same time. In particular, at this time, since the parallel surface and the inclined surface of the mold forming surface are connected without any step, the parallel surface and the inclined surface of the reinforcing fiber base to be formed are also formed without any step, and the base surface is formed. The boundary between the parallel surface and the inclined surface of the material is shaped into a desired target shape.

In the simultaneous shaping of the parallel surface and the inclined surface of the substrate, the boundary between the parallel surface and the inclined surface of the mold shaping surface, and the boundary between the parallel surface and the inclined surface of the reinforcing fiber substrate to be shaped Are preferably exactly the same, so that the substrate can be accurately shaped into the target shape. In order to achieve this, the compression shaping apparatus according to the present invention further detects the position of the inclined portion of the substrate surface accompanying the thickness change in the longitudinal direction of the reinforcing fiber substrate conveyed in the conveying direction. It has a base material inclination part detection means, and a conveyance control means for controlling the conveyance of the reinforcing fiber base material based on the information detected by the base material inclination part detection means . By such means, the conveyance of the substrate is accurately controlled, and the boundary portion between the parallel surface and the inclined surface of the reinforcing fiber substrate to be shaped is inclined with the parallel surface of the mold shaping surface during the shaping operation. It can be accurately aligned with the boundary of the surface.

  Further, the mold driving means may be configured to have one pressurizing mechanism for one mold, or may be configured to include a plurality of pressurizing mechanisms. In the latter case, when the pressing operation is performed on the mold having both the parallel surface and the inclined surface as described above, both the parallel surface and the inclined surface should be evenly shaped, and the parallel surface of the reinforcing fiber base should be shaped. It is possible to apply pressure to the inclined surface, and it is possible to form the desired shape with higher accuracy.

  Moreover, the compression shaping apparatus which concerns on this invention is applicable also when the target shaping cross-sectional shape of a reinforced fiber base material has a bending part. That is, when the target shaping cross-sectional shape of the reinforcing fiber base includes a bent portion, it is sufficient that at least one of the molds has a cross-sectional shape corresponding to the bent portion. .

  The present invention also provides a fiber reinforced composite material and a preform produced using the compression shaping apparatus as described above. The fiber reinforced composite material according to the present invention is composed of a prepreg in which a reinforcing fiber base is impregnated with a matrix resin, the reinforcing fiber base is shaped using the compression molding apparatus as described above, and the matrix resin is It consists of what is characterized by being hardened and manufactured.

  In the preform according to the present invention, the reinforcing fiber base is made of a dry reinforcing fiber material that does not contain a matrix resin, and the reinforcing fiber base is shaped using the compression shaping apparatus as described above. It consists of what is characterized by being. In this case, the fiber-reinforced composite material is manufactured by impregnating the preform shaped as described above with a matrix resin and curing the impregnated matrix resin.

  In the compression molding method according to the present invention, at least one reinforcing fiber base material containing reinforcing fibers is pressed between at least two molds to form a shape along the shape of the mold forming surface. Opening and closing the two molds to form the reinforcing fiber base sequentially, and compressing and reinforcing the reinforcing fiber base that is carried in and out of the mold in accordance with the opening and closing operation of the mold. A molding method, wherein a mold shaping surface of at least one of the molds is parallel to a parallel surface with respect to a conveyance direction of the reinforcing fiber base, and the conveyance is connected to the parallel surface without a step. When the inclined portion of the reinforcing fiber base material having a slope portion on the surface of the base material is formed with a thickness change in the longitudinal direction and formed on a mold shaping surface having an inclined surface inclined with respect to the direction. Reinforcing fibers using both parallel and inclined surfaces of the mold shaping surface Consists method characterized by pressurizing the timber.

  This compression shaping method is suitable, for example, when the reinforcing fiber base is composed of a laminate of sheet materials containing reinforcing fibers, the number of stacked layers changes, and the reinforcing fiber base has an inclined surface accordingly. It is. The sheet material containing the reinforcing fibers can be either a prepreg in which a reinforcing fiber material is impregnated with a matrix resin or a dry reinforcing fiber material that does not contain a matrix resin.

  Further, in the compression shaping method according to the present invention, in the simultaneous shaping of the parallel surface and the inclined surface of the base material, the boundary between the parallel surface of the mold shaping surface and the inclined surface, and the reinforcement to be shaped In order to match the position of the boundary portion between the parallel surface and the inclined surface of the fiber substrate, the position of the substrate inclined portion of the reinforcing fiber substrate to be conveyed is detected, and the reinforcing fiber substrate is conveyed based on the detection information. It is preferable to control.

  Further, it is possible to perform a pressurizing operation at a plurality of locations on one mold.

  Further, in the compression shaping method according to the present invention, when the target shaping cross-sectional shape of the reinforcing fiber base includes a bent portion, at least one mold having a cross-sectional shape corresponding to the bent portion is used. It is preferable to shape the reinforcing fiber base.

  The method for producing a fiber-reinforced composite material according to the present invention comprises a prepreg in which a reinforcing fiber substrate is impregnated with a matrix resin, and the reinforcing fiber substrate is shaped using the compression shaping method as described above, The method comprises curing a matrix resin.

  The method for producing a preform according to the present invention is such that the reinforcing fiber base is made of a dry reinforcing fiber material not containing a matrix resin, and the reinforcing fiber base is shaped using the compression shaping method as described above. It consists of the method characterized by this. In this case, the fiber-reinforced composite material can be produced by impregnating the preform shaped as described above with a matrix resin and curing the impregnated matrix resin.

  According to the compression shaping apparatus and method according to the present invention, even when the reinforcing fiber substrate has an inclined surface with a change in thickness in the longitudinal direction of the reinforcing fiber substrate, the parallel surface and the inclination connected to the parallel surface are provided. With the mold shaping surface that has both surfaces, the parallel surface of the reinforcing fiber base, the inclined surface, and the boundary between them can be shaped efficiently and simultaneously, and it can be shaped very easily into the desired desired shape. it can. In particular, if the position of the inclined surface of the reinforcing fiber base material is detected to control the conveyance of the base material, it is possible to shape the target shape with higher accuracy. Therefore, even if it is relatively long, it can be shaped into a predetermined form easily and efficiently.

According to the fiber-reinforced method of producing a composite material and the preform according to the present invention, since use of the compression shaping apparatus and method which can be shaped better accuracy and efficiency goals and shape as described above, comparative Even when the product is long, it is possible to produce a fiber-reinforced composite material that is uniformly molded and has a high fiber volume content, and it is possible to improve production yield and achieve high productivity. Become.

It is a schematic side view of the compression shaping apparatus which concerns on one embodiment of this invention, (A)-(C) has shown the shaping operation | movement order with respect to the base material. It is a schematic perspective view of the whole continuous shaping apparatus containing the compression shaping apparatus which concerns on another embodiment of this invention. It is a perspective view of the fiber reinforced composite material which shows the final shape in the case of using the apparatus of FIG. It is an expansion perspective view which shows an example of the shaping die which uses the apparatus of FIG. The compression shaping apparatus part in the apparatus of FIG. 2 is shown, (A) is a schematic cross-sectional view, (B) is a schematic side view. It is a schematic side view of the compression shaping apparatus which concerns on another embodiment of this invention. It is a schematic side view of the compression shaping apparatus which concerns on another embodiment of this invention. It is a schematic side view of the compression shaping apparatus which concerns on another embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
The object to be shaped in the compression shaping apparatus and method according to the present invention is a reinforcing fiber base material containing reinforcing fibers, and typically has a slope whose thickness changes in the longitudinal direction of the base material, for example, depending on the number of laminated layers. It is the laminated body of the sheet material containing the reinforcing fiber which has a surface part. Examples of the “reinforcing fiber” in the present invention include carbon fiber, glass fiber, and aramid fiber. The form of the reinforcing fiber includes a woven fabric, a knitted fabric, a braided fabric, a non-woven fabric, and a reinforcing fiber sheet aligned in one direction. As the sheet material containing the reinforcing fiber, either a prepreg in which the reinforcing fiber material is impregnated with a matrix resin or a dry reinforcing fiber material not containing the matrix resin can be used. The “laminate” is composed of a laminate of a plurality of sheet materials in the form of such a prepreg, or a laminate of a plurality of sheet materials in the form of a dry reinforcing fiber material. In the case of using dry reinforcing fiber material, a binding substance may be used. This binding substance adheres to the reinforcing fibers and binds the reinforcing fibers to form a reinforcing fiber in a sheet form. For example, polyolefin, styrene resin, nylon, polyurethane and other thermoplastic resins, and epoxy, phenol, unsaturated polyester, etc. For example, a functional resin. In addition, the binder resin plays a role of maintaining the form of the dry reinforcing fiber material laminate when it is shaped into a desired shape.

  FIG. 1 shows a compression shaping apparatus according to an embodiment of the present invention and a compression shaping method using the compression shaping apparatus. In this embodiment, the compression shaping apparatus 10 includes a reinforcing fiber substrate 1 containing reinforcing fibers (for example, a laminated body of reinforcing fiber material sheets or a laminated body of prepreg sheets) as an upper mold 2a and a lower mold. At least two molds 2a and 2b shaped into a shape along the shape of the mold shaping surfaces 3a and 3b by pressing between the molds 2b and at least one mold 2a is pressed in the direction of arrow A The reinforcing fiber substrate 1 is moved to the molds 2a and 2b in accordance with the mold driving means 4 for performing the opening and closing operation in the opposite direction to the operation and the shaping operation by pressurization between the molds 2a and 2b. Conveying means 5 for carrying in and out in the direction of arrow B with respect to the installation site is provided. The conveyance means 5 is comprised by the traction means which pulls the reinforcement fiber base material 1 in the arrow B direction, for example. However, the conveying means 5 may be a means for conveying the reinforcing fiber base 1 so as to grip and pull out, and means for conveying the reinforcing fiber base 1 so as to be pushed in from the inlet side of the molds 2a and 2b. It may be. In such a compression shaping apparatus 10, in this embodiment, the mold shaping surface 3 a of the mold 2 a is parallel to the parallel surface 6 a parallel to the conveyance direction B of the reinforcing fiber base 1 and the parallel surface 6 a. It is formed in a surface shape having an inclined surface 6b that is connected without a step and is inclined with respect to the transport direction B. The parallel surface 6a of the mold shaping surface 3a corresponds to the shape of the substrate parallel surface 7a in which the thickness of the reinforcing fiber substrate 1 is constant and the surface of the substrate to be shaped is parallel to the conveyance direction B. The inclined surface 6b of the mold shaping surface 3a has a shape of a substrate inclined surface 7b in which the thickness of the reinforcing fiber substrate 1 is changed and the surface of the substrate to be shaped is inclined with respect to the transport direction B. It corresponds.

  In this embodiment, the lower mold 2b is a fixed mold, but the lower mold 2b is configured as a movable mold such as the upper mold 2a. Alternatively, both may be configured as a movable mold. In this embodiment, the mold shaping surface 3a of the mold 2a is formed in a shape having both the parallel surface 6a and the inclined surface 6b. It can also be formed in such a shape, and the mold shaping surfaces 3a and 3b of both molds 2a and 2b can be formed in such a shape.

  In such a compression shaping apparatus 10, compression shaping of the reinforcing fiber base 1 is performed as shown in FIGS. 1 (A), (B), and (C). With respect to the reinforcing fiber substrate 1 conveyed in the conveying direction B, the operation shown in FIG. 1A is that the surface of the substrate to be shaped with a constant thickness of the reinforcing fiber substrate 1 is in the conveying direction B. The shape of the parallel base material parallel surface 7a in the shape of the base material portion is shown, and only the parallel surface 6a of the mold shaping surface 3a of the mold 2a is pressed against the base material parallel surface 7a. The base material shape of the part is compression-shaped into a predetermined constant thickness. In FIG. 1B, the substrate inclined surface 7b of the reinforcing fiber substrate 1 is conveyed to the position between the molds 2a and 2b, and both the parallel surface 6a and the inclined surface 6b of the mold shaping surface 3a are used. The base material parallel surface 7a and the base material inclined surface 7b of the reinforcing fiber base material 1 and further their boundary portions are shown to be formed simultaneously. At the time of this compression molding, as described above, the boundary between the base parallel surface 7a and the base inclined surface 7b of the reinforcing fiber base 1 is the boundary between the parallel surface 6a and the inclined surface 6b of the mold forming surface 3a. The coincidence is preferably coincident, and this coincidence is, for example, as shown in FIG. 1A, the position of the inclined portion (substrate inclined surface 7b) of the substrate surface or the substrate parallel surface 7a of the reinforcing fiber substrate 1. And base material inclined part position detection means 8 (for example, a non-contact type or contact type sensor) capable of detecting the position of the boundary part between the base material and the base material inclined surface 7b, and conveyance of the reinforcing fiber base material 1 based on the detection information. This can be achieved by the conveyance control means 9 (for example, the drive control means of the conveyance means 5) that can control the above. The simultaneous shaping of the substrate parallel surface 7a and the substrate inclined surface 7b of the reinforcing fiber substrate 1 by the parallel surface 6a and the inclined surface 6b of the mold shaping surface 3a makes it extremely easy, efficient and accurate. The reinforcing fiber substrate 1 can be shaped into a target shape. In FIG. 1C, the shaping of the substrate inclined surface 7b of the reinforcing fiber substrate 1 is completed, the reinforcing fiber substrate 1 is further conveyed in the conveying direction B, and again the substrate parallel surface 7a (FIG. 1 above). (A) shows that the shaping of the base material parallel surface 7a) of the thicker portion than the portion in (A) is performed using only the parallel surface 6a of the mold shaping surface 3a. Thus, each part of the long reinforcing fiber base material 1 is shaped into a target shape one after another by repeating a predetermined amount of intermittent base material conveyance and opening / closing operation of the mold 2a. become.

  FIG. 2 shows the entire continuous shaping apparatus including a compression shaping apparatus according to another embodiment of the present invention, in particular, a bent portion in the cross-sectional shape, and the substrate is shaped in a T-shaped cross-sectional shape as a whole. The continuous shaping | molding apparatus 11 containing the compression shaping apparatus to perform is illustrated. In this embodiment, the cross section is finally T-shaped as shown in FIG. 3 (however, FIG. 3 is shown with the top and bottom reversed), and the thickness changing portion is in the middle of the longitudinal direction. A relatively long fiber-reinforced composite material 31 having 32 can be manufactured (the shape of the preform is also as shown in FIG. 3). In FIG. 2, the reinforcing fiber bases 12 and 13 having thickness changing portions in the longitudinal direction are respectively conveyed, and one reinforcing fiber base 12 is preliminarily shaped by the cap press 14, and then the whole It is conveyed to a T-shaped press 15 as a compression shaping apparatus according to the present invention, which is shaped into a predetermined T-shaped cross-sectional shape. On the other reinforcing fiber base 13, the fed release sheet 16 is affixed by 17 parts of a release sheet affixing press and is deformed into a V shape by a pressing disc 18, and then a web press 19, a drape roller After the material strip of the corner filler member 21 that has been shaped into a T-shaped cross section using 20 and fed out to the base where the T-shaped legs intersect is placed using the filler mold 22, the T-shaped press 15 To be transported. In the T-shaped press 15, the reinforced fiber base materials 12 and 13 that have been conveyed are preliminarily shaped into a predetermined T-shaped cross-sectional shape using the compression shaping method according to the present invention. The carrying-in of the base material to the T-shaped press 15 and the unloading of the base material from the T-shaped press 15 are intermittently performed by the drawing device 23 in conjunction with the shaping operation.

  The shaping to the T-shape is performed using the mold 24 arranged on the top surface side of the T-shape in the T-shaped press 15 and the mold 25 arranged on both sides of the T-shape. The shaping of the inclined surface corresponding to the thickness changing portion of the base material is mainly performed by the mold 25. The mold 25 used for this shaping is formed, for example, as shown in FIG. In the mold 25 shown in FIG. 4, mold shaping surfaces 26 and 27 are formed. For example, the mold shaping surface 26 is a mold shaping surface for shaping the T-shaped top bottom surface. The mold shaping surface 27 constitutes a mold shaping surface for shaping the T-shaped leg side surface. In order to correspond to the shaping of the thickness changing portion 32 as shown in FIG. 3, the mold shaping surface 26 has a shape in which the parallel surface 26a and the inclined surface 26b are connected without a step, and the mold shaping surface 27 is formed. Has a shape in which the parallel surface 27a and the inclined surface 27b are connected without any step.

  The shaping corresponding to the thickness changing portion 32 is performed as shown in FIGS. 5 (A) and 5 (B), for example. As shown in FIG. 5 (A), the reinforcing fiber between the upper fixed mold 24 and the movable mold 25 (25a, 25b) disposed on the lower side and the both side surfaces of the T-shaped leg. A reinforcing fiber base material 41 preshaped into a T shape composed of the base materials 12 and 13 is shaped into a predetermined T-shaped cross-sectional shape. As shown in FIGS. 5A and 5B, the movable molds 25a and 25b are pressed toward the T-shaped legs of the reinforcing fiber base 41 by the mold driving means 43a and 43b along the guide 42. At the same time, the die driving means 45 is pressurized along the guide 44 to move to the lower surface of the T-shaped top portion of the reinforcing fiber substrate 41 by including the guide 42 portion. As shown in FIG. 5 (B), when the thickness changing portion 46 of the reinforcing fiber base 41 is just conveyed to the position corresponding to the inclined surface 26b of the mold 25, compression molding by the mold 25 is performed. . In this case, as described above, the thickness changing portion 46 (inclined surface portion) and the parallel surface portion of the reinforcing fiber base 41 are simultaneously shaped by the parallel surface 26a and the inclined surface 26b of the mold 25. The positioning of the thickness changing portion 46 (inclined surface portion) of the reinforcing fiber base 41 is performed, for example, at a position 47 with a predetermined positional relationship with the thickness changing portion 46 of the reinforcing fiber base 41 in advance. And controlling the conveyance of the reinforcing fiber base 41 based on the detection information of the mark 47, it is possible to perform positioning with high accuracy.

  In the present invention, various variations can be adopted. For example, as shown in FIG. 6, a heating mold 51 and a cooling mold 52 can be arranged in series in the conveying direction (arrow direction) of the reinforcing fiber base 41 as a shaping mold. In this way, the reinforcing fiber base 41 shaped into a predetermined shape by the heating die 51 having a parallel surface and an inclined surface can be cooled by the cooling die 52 immediately after that, and thereby shaped. The predetermined shape of the reinforcing fiber base 41 can be fixed. Further, as shown in FIG. 7, the reinforcing fiber base 61 is heated to a temperature suitable for shaping by the heating die 62, and immediately thereafter, the base 61 is shaped into a predetermined shape by the cooling die 63. It is also possible to cool and harden the shaped shape. Further, as shown in FIG. 7, the inclination direction of the inclined surface of the thickness changing portion with respect to the conveying direction of the base material 61 can be opposite to the direction shown in FIG. A corresponding shaping mold may be prepared. Furthermore, as shown in FIG. 8, in the mold 71 having both the parallel surface and the inclined surface in the present invention among the molds 71 (heating mold in the illustrated example) for shaping the reinforcing fiber base 41, It can also be set as the metal mold shaping surface of the shape where the parallel surfaces 73a and 73b were connected on both sides (both sides of the substrate conveyance direction) without a step.

  The compression shaping apparatus and method according to the present invention can be applied to shaping any reinforcing fiber substrate having an inclined surface and a parallel surface, and can be widely applied to the field of manufacturing fiber reinforced composite materials and preforms.

DESCRIPTION OF SYMBOLS 1 Reinforcement fiber base material 2a, 2b Mold 3a, 3b Mold shaping surface 4 Mold drive means 5 Conveyance means 6a Parallel surface 6b Inclined surface 7a Base material parallel surface 7b Base material inclined surface 8 Base material inclined part position detection means 9 Conveying control means 10 Compression shaping device 11 Continuous shaping device 12, 13 Reinforcing fiber base material 14 Cap press 15 T-shaped press 16 Release sheet 17 Release sheet sticking press 18 Push disc 19 Web press 20 Drape roller 21 Corner Filler member 22 Filler mold 23 Pull-in device 24, 25, 25a, 25b Mold 26, 27 Mold shaping surface 26a, 27a Parallel surface 26b, 27b Inclined surface 31 Fiber reinforced composite material 32 Thickness changing portion 41 Reinforced fiber substrate 42 Guides 43a and 43b Mold driving means 44 Guide 45 Mold driving means 46 Thickness changing portion 47 Position detection mark 51 Heating mold 52却型 61 reinforcing fiber substrate 62 heated mold 63 cooled mold 71 the mold 72 the inclined surfaces 73a, 73b parallel surfaces

Claims (16)

At least two molds shaped into a shape along the shape of the mold shaping surface by pressing a reinforcing fiber substrate containing reinforcing fibers between the molds, and at least one mold is opened and closed. Compressing the reinforcing fiber base comprising a mold driving means for pressurizing and releasing the reinforcing fiber base and a transport means for carrying the reinforcing fiber base into and out of the mold in accordance with the opening / closing operation of the mold. A shaping apparatus, wherein a mold shaping surface of at least one of the molds is connected to a parallel surface parallel to the conveying direction of the reinforcing fiber base and connected to the parallel surface without a step. lifting Chi combination of the inclined surface inclined with respect to the transporting direction, further, the compression shaping device, the inclined portion of the thickness due to the change substrate surface in the longitudinal direction of the reinforcing fiber substrate to be transported to the transporting direction By the base material inclination part detection means for detecting the position and the base material inclination part detection means Compression shaping apparatus characterized in that it comprises a conveyance control means for controlling the conveyance of the output based on the information reinforcing fiber substrate.   The compression shaping apparatus according to claim 1, wherein the reinforcing fiber base is composed of a laminate of sheet materials containing reinforcing fibers.   The compression shaping apparatus according to claim 2, wherein the sheet material containing the reinforcing fibers is made of a prepreg in which a reinforcing fiber material is impregnated with a matrix resin.   The compression shaping apparatus according to claim 2, wherein the sheet material containing the reinforcing fibers is made of a dry reinforcing fiber material not containing a matrix resin. The compression molding apparatus according to any one of claims 1 to 4 , wherein the mold driving means has a plurality of pressurizing mechanisms for one mold. Bent portion is included in the target shaping the cross-sectional shape of the reinforcing fiber substrate, at least one mold of said mold has a cross sectional shape corresponding to the bent portion, claim 1-5 The compression shaping apparatus described in 1.   Reinforcement by opening and closing at least one mold when forming a shape that follows the shape of the mold shaping surface by pressing a reinforcing fiber substrate containing reinforcing fibers between at least two molds and pressing. A method of compressing and shaping a reinforcing fiber base material that sequentially shapes the fiber base material and carries the reinforcing fiber base material into and out of the metal mold in accordance with the opening and closing operation of the mold. The mold shaping surface of at least one of the molds has both a parallel surface parallel to the conveying direction of the reinforcing fiber base and an inclined surface connected to the parallel surface without a step and inclined with respect to the conveying direction. A parallel surface of the mold shaping surface when the inclined portion of the reinforcing fiber base formed on the mold shaping surface and having a thickness change in the longitudinal direction and having an inclined portion on the substrate surface is conveyed. And pressurizing the reinforcing fiber substrate using both the inclined surface and the inclined surface Compression shaping method. The compression shaping method according to claim 7 , wherein the reinforcing fiber base is composed of a laminate of sheet materials containing reinforcing fibers. The compression molding method according to claim 8 , wherein the sheet material containing the reinforcing fibers is made of a prepreg in which a reinforcing fiber material is impregnated with a matrix resin. The compression molding method according to claim 8 , wherein the sheet material including the reinforcing fibers is formed of a dry reinforcing fiber material not including a matrix resin. The compression shaping method according to any one of claims 7 to 10 , wherein the position of the substrate inclined portion of the reinforcing fiber substrate to be conveyed is detected, and the conveyance of the reinforcing fiber substrate is controlled based on the detection information. The compression molding method according to any one of claims 7 to 11 , wherein a pressing operation is performed on a single mold at a plurality of locations. It contains the bent portion to the target shaping the cross-sectional shape of the reinforcing fiber substrate, to shape the reinforcing fiber base material using at least one mold having a cross sectional shape corresponding to the bent portion, claim 7 The compression shaping method according to any one of 12 above. The reinforcing fiber base is made of a prepreg impregnated with a matrix resin, the reinforcing fiber base is shaped using the compression molding method according to any one of claims 7 to 13 , and the matrix resin is cured. A method for producing a fiber-reinforced composite material. The reinforcing fiber base is made of a dry reinforcing fiber material containing no matrix resin, and the reinforcing fiber base is shaped using the compression molding method according to any one of claims 7 to 13. A preform manufacturing method. A method for producing a fiber-reinforced composite material, wherein the preform produced by the method according to claim 15 is impregnated with a matrix resin, and the impregnated matrix resin is cured.

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