JP5017976B2 - Manufacturing method and manufacturing apparatus for fiber reinforced resin member - Google Patents

Description

  The present invention relates to a method and an apparatus for manufacturing a fiber reinforced resin member capable of manufacturing a fiber reinforced plastic member widely used in transportation equipment such as automobiles and sports equipment with good reproducibility.

  Fiber reinforced plastic made by reinforcing resin (plastic) such as epoxy resin and polypropylene resin with reinforcing fibers such as glass fiber and carbon fiber is lightweight, high strength and high rigidity. Widely used in sports equipment such as tennis rackets and skis.

  The methods for producing these members and tools are roughly classified into an autoclave molding method and a resin transfer molding method.

  The autoclave molding method is a method in which an adhesive sheet-like material, which is pre-impregnated with a reinforcing fiber substrate called a prepreg, is shaped into a predetermined shape on a mold and then placed on the mold. This is a method for producing a member by heating and pressing in an oven called an autoclave.

  The manufacturing method by this autoclave molding method has an advantage that the prepreg does not move or change shape after the prepreg is shaped into a predetermined shape because the adhesive prepreg is stacked on the mold. There is a demerit that it is inferior in productivity because the mold is occupied during shaping and laminating operations. Although there is a measure to prepare a plurality of molds for mass production, the molds are expensive and costly.

  On the other hand, a resin transfer molding method (referred to as RTM molding method) in which only the reinforcing fiber base is shaped into a predetermined shape in advance, and then the reinforcing fiber base is impregnated with the resin, separately from the resin, It is attracting attention as a low-cost molding method for automobile parts and sports equipment.

  The manufacturing method by the present resin transfer molding method is called a shaping mold, and a reinforcing fiber base material that is not impregnated with a resin (referred to as a dry reinforcing fiber base material) on a mold different from the molding die. Since it is shaped into a predetermined shape, the reinforcing fiber base is easily deformed, the occupation time of the mold can be greatly shortened, and mass production becomes possible. However, the reinforcing fiber base shaped into a predetermined shape on the shaping mold needs to be moved and arranged (transferred) on the mold for injecting and curing the resin. The shape of the reinforcing fiber base has changed and the reinforcing fiber base has to be shaped again on the mold, which not only wastes the corner shaping process but also the performance of the final member It has a decisive problem in product safety that reproducibility cannot be ensured.

  For this reason, after shaping the reinforcing fiber base, a technique for stabilizing the shape of the reinforcing fiber base by applying a resin or adhesive substance called a fixing material has been proposed. However, depending on the type and amount of the fixing material, there is a problem that the shape of the reinforcing fiber base may be lost due to moisture absorption or temperature, and the compatibility with the resin injected into the reinforcing fiber base is poor, which inhibits the curing of the resin. Or the mechanical properties of the resin and fiber-reinforced plastic member may be reduced. In particular, in order to stabilize the shape of the reinforcing fiber base, when a large amount of fixing material is applied, the gap between the reinforcing fiber bases is reduced, and the resin in the resin transfer molding does not enter between the reinforcing fiber bases ( There is a possibility that a new product safety problem that a defect such as a void or the like deteriorates the mechanical properties of the member is caused.

  Conventionally, in order to stabilize the shape of the reinforcing fiber substrate, a method using a binder as a fixing material has been proposed (see, for example, Patent Document 1). However, at this time, the amount of the binder used is 40 to 70 parts by mass with respect to 100 parts by mass of the reinforcing fiber base to be used, and there is a concern that the binder may adversely affect the mechanical properties of the molded product.

  In addition, a technique of transporting using a thin tray has been proposed (see, for example, Patent Document 2), but in this method, a reinforcing fiber substrate is directly formed on the tray, so that the shape of the molded product becomes large and complicated. As it turns, the tray deforms in the process of shaping the reinforcing fiber base into a thin tray, making it impossible to set it in the mold, or even if it is forcibly set in the mold, it is bitten between the molds. A situation that cannot be closed occurs. Alternatively, in order to suppress the collapse of the shape, a large amount of fixing material must be applied, and the reality is that there is a possibility of the above-described problems occurring.

  Under these circumstances, the shape of the shaped reinforcing fiber substrate can be changed without using a large amount of a third material such as a fixing material as well as shaping the reinforcing fiber substrate into a predetermined shape. There is a need for a highly reliable manufacturing method that enables the final member to be manufactured with good reproducibility by being transported and arranged on a mold without causing the deformation.

Further, as in the case of prepreg molding, a method has been proposed in which a plurality of molding dies are prepared and the molding dies are conveyed to eliminate the deviation of the preform (see, for example, Patent Document 3). It takes a lot of effort to move the mold and requires a large working space, which is not a practical solution.
JP 2003-268126 A Japanese Patent Laid-Open No. 10-15970 Japanese Patent Laid-Open No. 10-193388 Japanese Patent Laid-Open No. 2003-21447

  In view of the above-described problems of the prior art, an object of the present invention is to shape a reinforcing fiber base into a predetermined shape, transfer it to a mold while maintaining the shape, and reinforce the reinforcing fiber base on the mold A highly reliable fiber-reinforced resin member manufacturing method and apparatus capable of stably manufacturing a fiber-reinforced resin member by impregnating a resin with a reinforcing fiber base without correcting the shape of the fiber There is.

The present invention employs the following means in order to solve such problems. That is,
(1) After shaping the reinforcing fiber base material on the conveying tool on the shaping mold comprising the conveying tool having a shaping surface having substantially the same shape as the final fiber-reinforced resin member to be produced The reinforcing fiber base material is separated from the shaping mold together with the conveying tool, transferred to a molding die, and subsequently, a resin is injected into the reinforcing fiber base material in the molding die and cured. A method for producing a fiber-reinforced resin member.

  (2) The method for producing a fiber-reinforced resin member according to (1), wherein the shape of the lower surface of the carrier is the same as the shape of the upper surface of the shaping mold.

(3) A method of manufacturing a fiber-reinforced resin member according to (1) or (2) to said conveyance member is characterized and Turkey that having a opening.

( 4 ) The transport device is composed of a plurality of film-like layers, and at least a film-like layer having an opening for injecting resin into the mold, and a film-like layer having a resin flow passage on the lower surface. The manufacturing method of the fiber reinforced resin member in any one of said (1)-( 3 ) characterized by including.

( 5 ) The method for producing a fiber-reinforced resin member according to any one of (1) to ( 4 ), wherein the carrier is a part that constitutes a part of the fiber-reinforced member.

( 6 ) The method for producing a fiber-reinforced resin member according to any one of (1) to ( 5 ), wherein the reinforcing fiber substrate is made of carbon fiber cloth.

( 7 ) A conveying tool having a shaping surface having substantially the same shape as the final fiber-reinforced resin member to be manufactured, which is mounted on and removable from the shaping mold on the shaping mold. And a means for shaping the reinforcing fiber base placed on the carrier, and injecting resin into the reinforcing fiber base placed on the carrier removed from the shaping mold And a device for producing a fiber reinforced resin member, comprising a mold for curing.

  According to the present invention, it is possible to transfer the reinforcing fiber base material to the mold while maintaining a predetermined shape, so that the shape of the reinforcing fiber base material does not collapse and it is not necessary to correct the shape. Therefore, a reproducible and highly reliable fiber reinforced resin member can be manufactured. In addition, since operations such as shape correction of the reinforcing fiber base are not required, productivity is improved, and a low-cost and highly practical manufacturing method and manufacturing apparatus are possible.

  In the following, the present invention will be described based on one embodiment shown in FIG.

  First, the shaping mold 1 used in the present invention includes a transport tool 2 as shown in FIG. A carrier 2 is placed on the shaping mold 1 and can be detached. The shaping mold 1 and the conveying tool 2 are made of materials such as metal, FRP, resin, paper, and wood, and the conveying tool 2 has a shaping surface 3. The shaping surface 3 has substantially the same shape as the final fiber-reinforced plastic member to be manufactured, and a reinforcing fiber substrate 4 described later is disposed on the shaping surface 3 so that the reinforcing fiber base is formed. The material 4 is shaped into the same shape as the shaping surface to obtain a product-shaped preform 11. The reinforcing fiber base 4 is formed smaller than the transport tool 2.

  As will be described later, in order to apply force to the reinforcing fiber base 4 by various means, the force also acts on the shaping surface 3 and the conveying tool 2, so that the conveying tool 2 and the shaping mold 1 are It is preferable that they are fitted or fixed with pins or the like so as not to be separated by the force accompanying shaping. Moreover, since the one where the conveyance tool 2 is lighter than the shaping type | mold 1 is hard to shift | deviate from both, it becomes possible to make a big force act in a shaping process, and it is preferable. If the lower surface 5 of the conveying tool 2 and the upper surface 6 of the shaping mold are in contact with each other, the shape of the shaping surface 3 is constant because the shape of the conveying tool 2 hardly changes even if the conveying tool 2 is thinned. It is most preferable because

  Next, the reinforcing fiber substrate 4 of the present invention has a fabric form such as a woven fabric, a non-woven fabric, and a mat, which is composed of continuous fibers or discontinuous (short) fibers such as glass fibers, carbon fibers, aramid fibers, and basalt fibers. ing. Since it has a fabric form, it is easy to form a three-dimensional shape such as an automobile member or sports equipment on the transport device 2.

  For automobiles and sports equipment, a woven fabric made of continuous carbon fibers having excellent lightness, strength and rigidity is most preferable. In addition, a fabric using glass fibers in combination for imparting impact resistance is also one preferred embodiment.

  A reinforcing fiber substrate 4 made of a plain weave fabric (cross) made of continuous carbon fibers is shaped into a shape of a shaping surface 3 on a carrier 2 as shown in FIG. Reform 11 is made. The shaping is performed by pressing the fabric against the shaping surface with a jig such as a hand, a roller, or a spatula. However, as disclosed in Patent Document 4, shaping can also be performed by a water pillow or vibration.

  A plurality of carbon fiber fabrics can be stacked and formed simultaneously, or can be formed and stacked one by one. Usually, since the resin is not applied to the reinforcing fiber base 4 such as a woven fabric, it is easily deformed and can be shaped with a slight force, but an adhesive is applied in advance or during the shaping process. Thus, the reinforcing fiber bases 4 such as woven fabrics may be adhered to each other. In this case, the pressure-sensitive adhesive is preferably imparted with a material having the same components as those described later. Further, in a preferred embodiment, fibers made of a thermoplastic resin are provided in the reinforcing fiber base, heated in the shaping step to melt the fibers, and then cooled to stabilize the shaped shape. is there. In the shaping step, when the fabric is stretched and cannot be shaped (called bridging), it is effective to cut a part of the fabric or make a cut. Based on the three-dimensional shape data of the shaping surface, create development drawing data into a two-dimensional shape, cut the reinforcing fiber base 4 such as a woven fabric into the shape of the additive drawing, and set it on the carrier 2. Forming is also effective.

  Next, as shown in FIGS. 2A to 2C, the preform 11 shaped on the shaping surface 3 of the conveying tool is trimmed around as necessary, and the entire conveying tool 2. Then, transfer to the lower mold 7. Since the reinforcing fiber base (preform) is moved together with the conveying tool, the fiber is not dropped, misaligned, distorted or the like during the conveyance, and a reproducible and highly reliable member can be manufactured.

  The transport tool 2 is separated from the shaping mold 1 and moved to the molding dies 7 and 9. If the transport tool is as light as several kg, it can be moved by hand or a simple robot. In the actual manufacturing process, it is advantageous in terms of production efficiency if the transporting device on which the shaped reinforcing fiber base material is placed is temporarily placed on top of the transporting device. Alternatively, it is preferable to form a fitting groove or the like on the lower surface of the carrier, for example, a function that can be fitted. In addition, air transfer or magnetic force may be used for transfer.

  The mold is called a so-called mold and is made of a metal such as steel or aluminum. As shown in FIG. 3, a reinforcing fiber base (typically composed of a lower die 7 and an upper die 9) and injected into a cavity formed between the upper and lower dies and placed on the carrier 2 ( A preform 11) is impregnated with resin to produce a fiber reinforced resin member.

  In the present invention, the carrier 2 and the reinforcing fiber base (preform 11) are transferred into the cavities of the lower mold 7 and the upper mold 9, and the resin 10 is injected and cured. Usually, the resin is pressurized for injection, and the resin is heated for curing. After the resin is cured, the mold is opened and the molded member is taken out.

  The resin 10 is preferably a thermosetting resin such as an epoxy resin, an unsaturated polyester resin, a vinyl ester resin, a phenol resin, or an acrylic resin, but it may be a thermoplastic resin such as polypropylene, polyethylene, or polyamide. The mixed resin may be used. An epoxy resin excellent in adhesiveness is preferable for an automobile member or sports equipment using carbon fiber.

  In addition, although it is preferable to arrange | position the conveyance tool 2 in the shaping | molding die 7 and 9 with the reinforcing fiber base material (preform 11), in this case, the lower surface 5 of the conveyance tool 2, and this conveyance tool 2 of The shape of the upper surface 8 of the lower mold 7 in contact with the lower surface 5 is preferably the same. This is because, by matching, it is possible to suppress deformation of the shaping surface due to pressure when the resin is injected.

  It is also a preferred embodiment that the transport tool 2 has a function of injecting resin. Specifically, it is preferable to use a so-called perforated film in which the conveying tool is formed of a film of several tens of μm to several mm, and an opening such as a circular hole is formed in the film. Also, a metal mesh or punching metal may be used. By doing so, the carrier becomes lightweight, and can be moved by human power or a simple robot, and at the same time, the reinforcing fiber base can be impregnated with the resin through the opening. In addition, the resin injection time can be shortened by using the lower mold of the mold provided with resin flow grooves or resin flow holes and further increasing the number of openings in the film. Alternatively, by providing an opening at a location where resin is difficult to impregnate, there is an advantage that production with fewer defective products becomes possible.

  In the case where the transporting device is in the form of a film, the material is, for example, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polyester such as liquid crystal polyester, polyethylene (PE), polypropylene ( PP), polyolefins such as polybutylene, styrene resins, polyoxymethylene (POM), polyamide (PA), polycarbonate (PC), polymethylene methacrylate (PMMA), polyvinyl chloride (PVC), polyphenylene sulfide ( PPS), polyphenylene ether (PPE), polyimide (PI), polyamideimide (PAI), polyetherimide (PEI), polysulfone (PSU), polyethersulfone, polyketone (PK), polyether Luketone (PEK), polyetheretherketone (PEEK), polyarylate (PAR), polyethernitrile (PEN), phenol (novolak type, etc.) phenoxy resin, fluorine resin, polystyrene, polyolefin, polyurethane, saturated polyester It may be a thermoplastic elastomer such as a polyamide-based, polyamide-based, polybutadiene-based, polyisoprene-based, or fluorine-based polymer, a copolymer, a modified body thereof, or a resin blended with two or more types. Above all, it is possible to reuse a fluororesin such as polytetrafluoroethylene or a resin excellent in releasability and heat resistance such as silicon, which is preferable for reducing the amount of dust generated in the manufacturing process and reducing the manufacturing cost of components. .

  Further, the thickness of the transport tool is set to several mm to several tens of mm, and the transport tool communicates with a resin flow path such as a resin flow groove (also referred to as a runner) and / or a resin flow hole, and the resin flow path. It is also possible to form an opening for injecting resin into the mold and impregnate the reinforcing fiber substrate (preform) with the resin in a short time.

  The resin flow passage may be a hole (resin flow hole) and / or a groove (resin flow groove), and is preferably a resin flow groove. An example of the transport tool having the resin flow groove and the opening is shown in FIG.

  The thickness of the transport tool 2 is preferably 1 mm to 50 mm. When the thickness is less than 1 mm, it is difficult to provide a resin flow groove in the transport tool. In addition, when the thickness exceeds 50 mm, the weight of the conveying tool becomes heavy, and there is a risk of hindering conveyance. More preferably, it is 2 mm-20 mm.

  The size of the opening 12 is preferably a circular shape having a diameter of 0.5 mm to 15 mm in order to efficiently impregnate the injected resin into the reinforcing fiber substrate (preform). When the opening size is less than 0.5 mm in diameter, the injected resin is less likely to pass through the opening, which may result in insufficient resin impregnation into the reinforcing fiber base. On the other hand, when the size of the opening exceeds 15 mm, the injected resin hardens, and then the cured resin in the opening portion firmly binds the transport tool and the molded product, and the transport tool may not be removed.

  The shape of the opening 12 is preferably a circular shape from the viewpoint of workability, but may be any other shape such as a triangular shape or a quadrangular shape.

  The arrangement position of the opening 12 is preferably arranged such that the distance from the adjacent opening is 30 mm to 500 mm. When the distance between the openings is less than 30 mm, the adjacent openings are too close to each other, so that the regions impregnated with the resin overlap from each opening, and the impregnation efficiency is deteriorated. On the other hand, when the distance between the openings exceeds 500 mm, an unimpregnated portion may be generated between the adjacent openings. In order to efficiently impregnate the resin, the distance between adjacent openings is more preferably 50 mm to 200 mm.

  The resin flow groove 13 is disposed so as to connect the resin injection port 14 and each opening 12.

  As shown in FIG. 4, the resin flow groove 13 is arranged such that the resin flow groove 13 extending from the resin inlet 14 branches to connect the openings 12 to shorten the resin flow groove length. For this purpose, an arrangement having a plurality of branches or an arrangement in which the resin injection port 14 and each opening 12 are directly connected without branching may be used.

  In addition, the resin flow grooves 13 are preferably arranged so as to connect all the openings, but even if there are openings that are not partially connected, there is no problem if more than half of the openings are connected. .

  The resin flow grooves 13 preferably have a groove width of 1 to 30 mm and a groove depth of 0.5 to 15 mm in order to efficiently flow the injected resin. When the groove width is less than 1 mm, or when the groove depth is less than 0.5 mm, the cross-sectional area of the resin flow groove becomes small and the resin does not flow easily. There is a risk that it cannot be impregnated. Further, when the groove width exceeds 30 mm or the groove depth exceeds 15 mm, a large amount of resin remains in the resin flow groove after resin injection, which is not preferable from the viewpoint of productivity. More preferable resin flow groove dimensions are a groove width of 2 to 20 mm and a groove depth of 1 to 10 mm.

  The cross-sectional shape of the resin flow groove is preferably a semicircular shape from the viewpoint of workability, but may be a shape other than the semicircular shape such as a U shape, a V shape, or a square shape.

  Similarly to the resin flow groove, the resin flow hole is provided to allow the resin injected from the resin injection port to flow to the opening. The dimension of the resin flow hole is not particularly limited, but is preferably a circular shape having a diameter of 1 mm to 30 mm in order to efficiently flow the injected resin. In addition, since the resin flow hole is often used in combination with the resin flow groove, the resin flow hole preferably has the same dimension as the resin flow groove width, but may have a different dimension.

  The shape of the resin flow hole is preferably a circular shape from the viewpoint of workability, but may be any other shape such as a triangular shape or a rectangular shape.

  Moreover, a conveyance tool is comprised from several layers, and it does not interfere even if it has the function of a resin flow groove, a resin flow hole, and an opening part, and each layer has divided | segmented. By doing so, it is easy to manufacture the transport tool, and it is possible to obtain an advantage that a plurality of functions can be easily given to one transport tool.

  FIG. 5 shows an example of a transport tool composed of a plurality of layers.

  In FIG. 5, the two layers of the layer 15 having an opening and the layer 16 having a resin flow groove are overlapped to form a single conveying tool. In addition, there is no problem even if the transporting device is composed of three or more layers, such as two resin fluidized layers or overlapping layers having different functions such as a transporting device reinforcing layer.

  It is preferable that the thickness of each layer of the conveyance tool comprised of a plurality of layers is 0.1 mm to 50 mm. When the thickness of the layer is less than 0.1 mm, sufficient durability may not be obtained. In addition, when the thickness of the layer exceeds 50 mm, the weight of the transport tool becomes heavy, and there is a risk of hindering transport.

  The transport tool is removed from the mold together with the fiber reinforced resin member, separated from the fiber reinforced resin member and reused, but the transport tool is a member integrated with the fiber reinforced resin portion without releasing the mold. It does not matter. For example, in the manufacture of an automobile trunk lid composed of two parts, an outer panel and an inner panel, a reinforcing fiber that becomes an outer panel on an inner panel that has been molded in advance by injection molding or press molding is used as a carrier. After shaping the base material, transfer it to the mold, inject and cure the resin into the mold cavity, and the trunk lid that integrates the inner panel (transporter) and the outer panel made of fiber reinforced resin Can be manufactured. When the carrier is made of paper, it can also serve as an interior material.

  Of course, the transfer tool may be separated from the fiber reinforced resin member after the mold has been released and the resin has hardened. When the transport tool has an opening, the transport tool and the fiber reinforced resin member can be separated by cutting the edge.

  In the above, the member was manufactured by injecting the resin while the transport tool was put in the mold cavity together with the preform, but before the resin injection, the transport tool was separated from the preform, and from inside the cavity. It is also possible to remove it.

Example 1
As a result of molding a door panel having dimensions of about 1200 mm × 700 mm × 100 mm using the apparatus shown in FIGS. 1 to 3 as follows, a fiber-reinforced resin member having stable and good reproducibility could be obtained.
8 sheets of carbon fiber cloth ("Torayca (registered trademark) woven fabric" CO6343 manufactured by Toray Industries, Inc., weaving structure: plain weave, fabric basis weight: 200 g / m ² , reinforcing fiber: T300-3K) are formed as the reinforcing fiber base 4 The product was cut into a developed view. The cut cloth was set on the shaping mold 1 to which the conveying tool 2 was attached, and the product shape preform 11 was created by pressing the cloth with a human hand and making it conform to the shaping mold shape.

As the transporting tool 2, a lightweight and easy-to-transport polyethylene product having a thickness of 5 mm as shown in FIG. The transport tool is provided with 23 circular openings 12 having a diameter of 5 mm at intervals of 200 mm, and a resin flow groove 13 branched into six from the resin injection port is formed on the lower surface of the transport tool. Arranged to connect the parts. The cross-sectional shape of the resin flow groove was a semicircular shape with a width of 6 mm and a depth of 3 mm.
Since the shape of the lower surface of the carrier 2 and the shaping mold upper surface 6 are the same, and the carrier has a convex shape with a large center protruding, the carrier can be sufficiently fixed simply by placing it on the shaping die. I was able to hold down the cross without any problems.
In order to fix the cloth to the product shape, spray glue (3M Co., Ltd. spray glue 55) was sprayed on the surface of each cloth as a fixing material, and the cloth was brought into close contact with each other to fix the layers.

  The transport tool 2 was removed together with the preform 11 fixed to the product shape, and transported to the lower mold 7 of the mold. At this time, since the reinforcing fiber base 4 could be moved while being supported by the carrier 2, it could be set in the mold without causing problems such as shape collapse and cross misalignment. .

The mold upper mold 9 was closed and sealed, and then the resin was injected into the mold. After injecting the resin and heating at 100 ° C. for 40 minutes to cure the resin, the molded product was demolded.
The resin used was “Epicoat” 828 (epoxy resin manufactured by Yuka Shell Epoxy Co., Ltd.) as the main agent, and the liquid epoxy resin obtained by mixing TR-C35H (imidazole derivative) blended with Toray Industries, Inc. was used.
A desired fiber-reinforced resin member was obtained by removing the carrier from the removed molded product.

Example 2
A fiber reinforced resin member was molded in the same manner as in Example 1 except for the carrier. As the transporting tool, a stack of two films shown in FIG. 5 was used.
The upper layer 15 was made of a polypropylene film having a thickness of 0.5 mm, and 23 circular openings having a diameter of 5 mm were provided at intervals of 200 mm.
A polypropylene film having a thickness of 4 mm is used for the lower layer 16, and a resin flow groove branched into six from the resin injection port is formed on the lower surface when the two layers of the film are overlapped. Arranged to connect. The cross-sectional shape of the resin flow groove was a semicircular shape with a width of 6 mm and a depth of 3 mm.
As a result of molding in the same manner as in Example 1 using this transporter, a fiber-reinforced resin member having stable and good reproducibility could be obtained.

Example 3
A fiber reinforced resin member was molded in the same manner as in Example 1 except for the carrier.
The transporting tool used was a stack of two films.
A polyethylene film having a thickness of 1 mm was used as the upper film, and 23 circular openings with a diameter of 5 mm were provided at intervals of 200 mm.
For the lower layer film, a mesh-like polyethylene film having a thickness of 1 mm and a mesh interval of 10 mm and good resin fluidity was used.
As a result of molding in the same manner as in Example 1 using this transporter, a fiber-reinforced resin member having stable and good reproducibility could be obtained.

Example 4
A fiber reinforced resin member was molded in the same manner as in Example 1 except for the carrier and the mold.
The carrier was a polyethylene film having a thickness of 1 mm, and 23 circular openings having a diameter of 5 mm were provided at intervals of 200 mm. In addition, the surface of the mold lower mold in contact with the conveying tool has a resin flow groove branched into six from the resin inlet so as to connect the resin inlet and each opening when the conveying tool is set in the mold lower mold. Arranged. The cross-sectional shape of the resin flow groove was a semicircular shape with a width of 6 mm and a depth of 3 mm.
As a result of molding in the same manner as in Example 1 using this transport tool and mold, a fiber-reinforced resin member having a stable and reproducibility could be obtained.

Example 5
A fiber reinforced resin member was molded in the same manner as in Example 1 except for the carrier and the mold.
As the carrier, a 1 mm thick polycarbonate film having no opening was used. In addition, eleven resin flow grooves were provided at 100 mm intervals on the surface of the mold not in contact with the conveying tool so that the injected resin was impregnated into the cloth without passing through the conveying tool. The cross-sectional shape of the resin flow groove was a semicircular shape with a width of 2 mm and a depth of 1 mm.
As a result of molding in the same manner as in Example 1 using this transport tool and the mold, a fiber reinforced resin member integrated with the transport tool could be obtained.

Comparative Example 1
In the same manner as in Example 1, a preform was created on the carrier set on the shaping mold. When the transport tool was left as it was, only the preform was removed and transported to the mold, and the preform shape collapsed during transport and the cross was misaligned, so it did not fit in the mold.

  Molding was carried out by correcting the preform shape on the mold, but it took a longer time than in Example 1, and the resulting molded product was a molded product with many fiber disturbances and unevenness depending on the location. .

It is a figure which shows one embodiment of the shaping process of the manufacturing flow of this invention, (A) is before shaping, (B) is a process drawing after shaping. It is a figure which shows one embodiment of the transfer process of the manufacturing flow of this invention, (A) is a shaping die, (B) is the conveyance tool removed from the shaping die, (C) shows a shaping | molding die, respectively. It is process drawing. It is a figure which shows one embodiment of resin injection | pouring of member manufacture of this invention. It is a figure which shows one embodiment of the conveying tool of this invention. It is a figure which shows other one embodiment of the conveying tool of this invention.

Explanation of symbols

1: Molding mold 2: Transport tool 3: Shaping surface 4: Reinforcing fiber substrate 5: Lower surface of transport tool 6: Upper surface of shaping mold 7: Lower mold of molding mold 8: Upper surface of lower mold of molding mold 9: Mold 10 Upper mold 10: Resin 11: Preform 12: Opening 13: Resin flow groove 14: Resin inlet 15: Layer having opening 16: Layer having resin flow groove

Claims (7)

The reinforcing fiber base material is shaped on the conveying tool on the shaping mold including the conveying tool having a shaping surface having substantially the same shape as the final fiber-reinforced resin member to be manufactured , and then the reinforcement A fiber reinforced resin characterized in that the fiber base material is separated from the shaping mold together with the conveying tool, transferred to a mold, and then injected into the reinforced fiber base and cured in the mold. Manufacturing method of member. The method for producing a fiber-reinforced resin member according to claim 1, wherein the shape of the lower surface of the transport tool and the shape of the upper surface of the shaping mold are the same. Method for producing a fiber-reinforced resin member according to claim 1 or 2, wherein the conveyance member is characterized and Turkey that having a opening. The transport device is composed of a plurality of film-like layers, and includes at least a film-like layer having an opening for injecting resin into the mold, and a film-like layer having a resin flow passage on the lower surface. The manufacturing method of the fiber reinforced resin member in any one of Claims 1-3 characterized by the above-mentioned. The method for manufacturing a fiber-reinforced resin member according to any one of claims 1 to 4 , wherein the carrier is a part constituting a part of the fiber-reinforced member. The method for producing a fiber-reinforced resin member according to any one of claims 1 to 5 , wherein the reinforcing fiber substrate is made of carbon fiber cloth. On the shaping mold, there is provided a conveying tool having a shaping surface having substantially the same shape as that of the final fiber reinforced resin member to be manufactured, which is detachably mounted on the shaping mold. , Comprising means for shaping the reinforcing fiber base placed on the carrier, and further injecting resin into the reinforcing fiber base placed on the carrier removed from the shaping mold, and curing An apparatus for producing a fiber reinforced resin member, comprising a mold for causing the fiber reinforced resin to form.

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