JP4973168B2 - Fiber reinforced composite material molding equipment - Google Patents

Description

  The present invention relates to a fiber reinforced composite material molding apparatus, and in particular, a fiber for forming a fiber reinforced composite material as a long fiber bundle by joining the ends of one fiber bundle and the ends of the other fiber bundle in an overlapping manner. The present invention relates to a reinforced composite material molding apparatus.

  A fiber reinforced composite material is used for pressure reduction, such as a high pressure tank for vehicles, for storing compressed hydrogen gas, compressed natural gas (CNG), and the like. As the fiber reinforced composite material, for example, a fiber reinforced composite material formed by impregnating a carbon fiber or the like as a reinforcing fiber with an epoxy resin or the like as a matrix resin is used.

  For forming the fiber-reinforced composite material, for example, a filament winding (FW) molding method is used. The filament winding molding method is a molding method in which, for example, a fiber bundle sent out from a bobbin or the like is impregnated with resin, and then the fiber bundle impregnated with resin is continuously wound around a mandrel or the like to form a fiber reinforced composite material. .

  Here, in order to continuously wind the fiber bundle around the liner of the high-pressure tank, the end of the fiber bundle being formed sent out from the bobbin or the like is a new fiber bundle not used for forming wound around the bobbin or the like. It is overlapped with the end, joined, and sent out as a long fiber bundle. Then, the end of the fiber bundle being molded and the end of the new fiber bundle are bonded and bonded with, for example, an adhesive.

  Patent Document 1 discloses that the sending end of the reinforcing fiber bundle of the original fabric roll and the sending start end of the reinforcing fiber bundle of the new web roll are connected by an adhesive tape. Patent Document 2 shows that the front end of the roll sheet that is subsequently unwound is bonded to the rear end of the roll sheet that has been previously unwound with a double-sided tape, an adhesive, or the like. Yes.

Japanese Patent Laid-Open No. 3-110108 JP 2000-94472 A

  By the way, when the end of one fiber bundle and the end of the other fiber bundle are overlapped, and the overlapped portion is all bonded with an adhesive such as a synthetic resin, a long fiber bundle is obtained. There is a possibility that the rigidity of the overlapping region included in the fiber bundle is increased, and the overlapping region is less flexible and difficult to deform. As a result, an internal defect or the like may occur in the molded fiber reinforced composite material, and the mechanical strength or the like of the fiber reinforced composite material may decrease.

  Accordingly, an object of the present invention is to provide a fiber-reinforced composite material capable of forming a fiber-reinforced resin composite material by making the region overlapped with the end of one fiber bundle and the end of the other fiber bundle easier to deform. It is to provide a forming apparatus.

A fiber-reinforced composite material molding apparatus according to the present invention is a fiber-reinforced composite material that forms a fiber-reinforced composite material as a long fiber bundle by overlapping and joining the ends of one fiber bundle and the other fiber bundle. A molding apparatus that supplies a thermosetting resin as an adhesive to an overlapping region between one fiber bundle and the other fiber bundle, and provides a predetermined interval with respect to the longitudinal direction of the fiber bundle. A fiber bonding apparatus that forms a plurality of bonded portions bonded in a dotted manner, and includes a fiber bonding device including a heating unit that heats the bonded portions to cure the thermosetting resin, and a bonding in which the thermosetting resin is cured. And a device for winding a long fiber bundle having a portion around an object .

Further, the fiber reinforced composite material molding apparatus according to the present invention is a fiber reinforced composite that forms a fiber reinforced composite material as a long fiber bundle by overlapping and joining the end of one fiber bundle and the end of the other fiber bundle. This is a composite material molding apparatus, in which a thermosetting resin is supplied as an adhesive to the overlapping region of one fiber bundle and the other fiber bundle, and a predetermined interval is provided in the longitudinal direction of the fiber bundle. A fiber joining device that forms a plurality of joints joined in a striped pattern, the fiber joining device including a heating means for heating the joint to cure the thermosetting resin, and the thermosetting resin is cured. An apparatus for winding a long fiber bundle having a joint portion around an object, and a plurality of unjoined portions are provided between the plurality of joint portions joined in stripes. To do .

  In the fiber reinforced composite material molding apparatus according to the present invention, the long fiber bundle is preferably wound around a liner of a pressure vessel.

  As described above, according to the fiber reinforced composite material molding apparatus according to the present invention, since there are a plurality of joining portions in the region where the end of one fiber bundle and the end of the other fiber bundle are overlapped, long fibers The overlapping region included in the bundle can be made more easily deformable, and the fiber-reinforced resin composite material can be molded.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram illustrating a configuration of a fiber-reinforced composite material molding apparatus 10.

  The fiber supply device 12 has a function of sending out the fiber bundle 14. As the fiber supply device 12, for example, a creel stand or the like can be used. The fiber supply device 12 includes a plurality of bobbins 16 for winding the fiber bundle 14 and a plurality of fiber tension adjusting devices 18 for adjusting the tension applied to the plurality of fiber bundles 14. Thereby, the plurality of fiber bundles 14 fed out from the bobbin 16 or the like can be supplied after being adjusted to a predetermined tension by the fiber tension adjusting device 18. Of course, depending on other conditions, the number of fiber bundles 14 is not limited to a plurality, and may be one.

  As the fibers of the fiber bundle 14, carbon fibers that are high-strength fibers or high-elastic fibers can be used. As the carbon fiber, rayon-based carbon fiber, polyacrylonitrile (PAN) -based carbon fiber, pitch-based carbon fiber, or the like is used. Of course, the fibers of the fiber bundle 14 are not limited to carbon fibers, and glass fibers or aramid fibers can be used.

  For the fiber bundle 14, for example, yarn, strand, roving, or the like in which filaments that are single fibers having a fiber diameter of 1 μm to 5 μm are bundled can be used. For example, for the fiber bundle 14 using carbon fibers, carbon fiber strands in which 10,000 to 50,000 carbon fiber filaments are bundled can be used. In addition, the fiber bundle 14 may be made of not only a unidirectional material but also a fiber sheet of a woven material woven with plain weave or satin weave. Of course, depending on other conditions, the fiber bundle 14 is not limited to these forms.

  For the fiber bundle 14, a prepreg in which fibers are impregnated with a resin in advance can be used. As the prepreg resin, for example, a thermosetting resin such as an epoxy resin, a phenol resin, or an unsaturated polyester resin can be used. Of course, the resin for prepreg is not limited to the above resin.

  The fiber tension measuring device 20 has a function of measuring the tension applied to the plurality of fiber bundles 14 sent out from the fiber supply device 12. As the fiber tension measuring device 20, a tension measuring device generally used for measuring the tension of carbon fiber or the like can be used.

  The resin impregnation device 22 has a function of impregnating the fiber bundle 14 measured by the fiber tension measurement device 20 with resin or the like. The resin impregnation device 22 includes a resin tank 24 that stores the resin impregnated in the fiber bundle 14, a resin impregnation roller 26 that adheres resin to the fiber bundle 14, a first tension roller 28, and a second tension roller 30. ing. The resin impregnation apparatus 22 includes a resin thermometer that measures the resin temperature to adjust the resin viscosity, and a resin film thickness meter 32 that measures the resin film thickness attached to the fiber bundle 14 to adjust the resin impregnation amount. And have. Then, the resin impregnated roller 26 is rotated so that the roller surface is immersed in the resin stored in the resin tank 24, and then the roller surface to which the resin has adhered is brought into contact with the fiber bundle 14 to be impregnated with the resin. As the synthetic resin impregnated in the fiber bundle 14, a thermosetting resin such as an epoxy resin, a phenol resin, or an unsaturated polyester resin can be used. Of course, the synthetic resin is not limited to the above synthetic resin.

  The filament winding apparatus 34 has a function of winding the resin-impregnated fiber bundle 14 sent out from the resin impregnation apparatus 22 around a mandrel 36 (Mandrel), which is a mold or a mandrel. The filament winding apparatus 34 can wind the resin-impregnated fiber bundle 14 in the circumferential direction or the axial direction of the mandrel 36 or the like. For example, the filament winding device 34 may be a hoop winding that winds substantially perpendicular to the rotation axis direction of the mandrel 36 or the like, or a helical winding that winds at a predetermined angle with respect to the rotation axis direction of the mandrel 36 or the like. ) Or the like, the fiber bundle 14 impregnated with the resin can be wound.

  When manufacturing a pressure vessel, for example, a high-pressure tank, a resin liner formed from polyamide resin or a metal liner formed from aluminum or the like can be used instead of the mandrel 36. The fiber bundle 14 impregnated with the resin is wound around the resin liner or the metal liner by the filament winding device 34 while applying tension.

  The control device 38 is connected to the fiber tension measuring device 20, the resin temperature sensor disposed in the resin impregnation device 22, the resin film thickness meter 32 and the like using a lead wire and a connector. The control device 38 has a function of inputting an electrical signal of tension data of the fiber bundle 14 output from the fiber tension measuring device 20 and controlling the tension of the fiber bundle 14. And the control apparatus 38 has a function which can input the electric signal of the resin temperature data output from the resin temperature sensor arrange | positioned at the resin impregnation apparatus 22, and can control resin temperature. Further, the control device 34 inputs an electric signal of the resin film thickness data output from the resin film thickness meter 32 and detects whether or not a predetermined resin amount serving as a reference is attached to the resin impregnated roller 26. It has a function that can. The control device 38 can be configured by, for example, a personal computer (PC). The data logger 40 connected to the control device 38 stores and stores the above-described tension data, resin temperature data, resin film thickness data, and the like of the fiber bundle 14.

  The fiber joining device 42 superimposes and joins the end of the fiber bundle 14 being formed which is one fiber bundle and the end of a new fiber bundle 44 which is not used for forming which is the other fiber bundle. It has a function of forming the long fiber bundle 46. The fiber yield can be improved by replacing the fiber bundle 14 being formed around the bobbin 16 with a new bobbin before it is used up. The overlapping region of the fiber bundle 14 being molded and the new fiber bundle 44 has a plurality of joint portions joined at a predetermined interval with respect to the longitudinal direction of the long fiber bundle 46. ing. Since a predetermined interval is provided between the joint portions in the overlapping region, the fiber bundle 14 being molded and the new fiber bundle 44 are not joined between the joint portions. Since the unjoined portion is more easily deformed than the joined portion, deformation in the overlapping region included in the long fiber bundle 46 can be more easily generated.

  The overlapping region of the fiber bundle 14 being molded and the new fiber bundle 44 preferably has a joining portion that is joined in a dotted manner with a predetermined interval in the longitudinal direction. FIG. 2 is a diagram showing an overlapping region A having a plurality of joint portions joined in a dotted manner with a predetermined interval with respect to the longitudinal direction. Since a predetermined interval is provided between the respective dotted joints 48 in the overlapping region A, the fiber bundle 14 being molded and the new fiber bundle 44 are formed between the respective dotted joints 48. Are not joined. Therefore, the overlapping region A included in the long fiber bundle 46 can be made flexible and easily deformed.

  For example, not only the case where the long fiber bundle 46 is wound by the wind winding by the filament winding device 34 substantially perpendicular to the rotation axis direction of the liner or the like of the high-pressure tank, but also the rotation shaft of the liner or the like of the high-pressure tank. Even in the case of winding by helical winding or the like that winds at a predetermined angle with respect to the direction, the overlapping region A included in the long fiber bundle 46 is bonded in a dotted manner with a predetermined interval. 48, the overlapping area A can be easily deformed and wound around a liner or the like.

  Further, the number of the joint portions 48 joined in a spot shape is not limited to 13 places as shown in FIG. 2, and may be, for example, 10 places or 15 places. Further, the interval between the respective joint portions 48 joined in a dot shape is not limited to a substantially constant interval, and may be different at each joint portion 48.

  The overlapping region of the fiber bundle 14 being molded and the new fiber bundle 44 is joined in a striped shape (stripe shape) with a predetermined interval in the longitudinal direction of the long fiber bundle 46. It is preferable to have. FIG. 3 is a diagram showing an overlapping region A having a plurality of joint portions joined in stripes with a predetermined interval with respect to the longitudinal direction. Since a predetermined interval is provided between the striped joints 50 in the overlapping region A, the fiber bundle 14 being molded and the new fiber bundle 44 are formed between the striped joints 50. Are not joined. Therefore, the overlapping region A included in the long fiber bundle 46 can be made flexible and easily deformed.

  Since the bonding portion 50 bonded in a striped manner has a larger bonding area than the bonding portion 48 bonded in a dot shape, the bonding strength in the overlapping region A can be further increased. Therefore, for example, when the long fiber bundle 46 is wound by a hoop winding in which the filament winding device 34 is wound in a direction substantially perpendicular to the rotation axis direction of the liner of the high-pressure tank or the like, It can be wound with higher tension.

  The plurality of joining portions 50 joined in a stripe shape may be joined not only in a substantially linear shape but also in a curved shape as shown in FIG. Moreover, the number of the joining parts 50 joined in a striped manner is not limited to five as shown in FIG. 3, and may be, for example, three or seven. Furthermore, the interval between the respective joint portions 50 formed in a striped manner is not limited to a substantially constant interval, and may be different at each joint portion 50.

  The fiber bundle 14 being molded and the new fiber bundle 44 can be bonded and bonded with an adhesive or the like. FIG. 4 is a diagram showing a method of joining the joint portions 48 and 50 in the overlapping region of the fiber bundle 14 being molded and the new fiber bundle 44. The ends of the fiber bundle 14 being molded and the ends of the new fiber bundle 44 are overlapped, for example, with a synthetic resin adhesive or the like supplied from an adhesive supply nozzle 52 or the like provided in the fiber bonding apparatus 42. Can be bonded and bonded. Further, the bonding portions 48 and 50 can be heated by a heater or the like provided in the fiber bonding apparatus 42 to accelerate the curing of the adhesive.

  As the adhesive, it is preferable to use a synthetic resin adhesive having high bonding strength between the fiber bundle 14 being molded and the new fiber bundle 44. This is because the joint strength of the joint portions 48 and 50 between the fiber bundle 14 being molded and the new fiber bundle 44 can be increased, and breakage and the like at the joint portions 48 and 50 can be suppressed. The adhesive is preferably a synthetic resin adhesive that cures and adheres in a shorter time. This is because the fiber bundle 14 being molded and the new fiber bundle 44 can be joined in a shorter time, so that the productivity of the fiber-reinforced composite material is improved. Furthermore, it is preferable to use a synthetic resin adhesive having physical properties equivalent to the matrix resin of the fiber reinforced composite material. For example, when an epoxy synthetic resin is used as the matrix resin, it is preferable to use an epoxy synthetic resin adhesive as the adhesive. This is because peeling at the interface between the adhesive layer formed by curing the adhesive and the matrix resin can be suppressed. Moreover, an adhesive agent is not limited to a paste-like adhesive agent, For example, a film adhesive agent etc. can be used.

  An anaerobic resin, a thermoplastic resin, a thermosetting resin, or the like can be used for the adhesive. When an anaerobic resin such as an acrylic resin is used as an adhesive, the anaerobic resin is applied to a predetermined position between the fiber bundle 14 being molded and the new fiber bundle 44, and then bonded by holding them in an overlapping manner. can do. When a thermoplastic resin such as a polyester resin is used as an adhesive, after applying the thermoplastic resin whose viscosity has been reduced by heating to a predetermined position between the fiber bundle 14 being molded and the new fiber bundle 44, It can join by superposing and cooling. When a thermosetting resin such as an epoxy resin is used as an adhesive, the thermosetting resin is applied to a predetermined position between the fiber bundle 14 being molded and the new fiber bundle 44, and then superposed on a hot plate or Bonding is possible by heating at a high frequency. Further, in order to impregnate the fiber bundle 14 being molded and the new fiber bundle 44 with anaerobic resin, thermoplastic resin, thermosetting resin, or the like, they may be pressed and bonded.

  Even in the case where a prepreg is used, similarly, the overlapping region A between the end of the prepreg being molded that is one prepreg and the end of a new prepreg that is the other prepreg is the length of the long prepreg. It has the some junction part joined by providing predetermined spacing with respect to the scale direction. Since a predetermined interval is provided between the joints in the overlapping region A, the prepreg being molded and the new prepreg are not joined between the joints. Therefore, deformation in the overlapping region A included in the long prepreg can be more easily generated. And it is preferable that the overlapping area | region A of the prepreg in process of molding and a new prepreg has the junction part joined in the shape of a dot at predetermined intervals with respect to the elongate direction. Moreover, it is preferable that the overlapping region A of the prepreg being molded and the new prepreg has a joining portion that is joined in a striped manner with a predetermined interval in the longitudinal direction.

  FIG. 5 is a view showing a joining method of the joining portion 58 in the overlapping region of the prepreg 54 and the new prepreg 56 being molded. The ends of the prepreg 54 being molded and the ends of the other prepreg 56 are overlapped and heated by a hot gun 60 or the like provided in the fiber bonding apparatus 42, whereby the heated portions can be bonded. Since the prepregs 54 and 56 are preliminarily impregnated with a synthetic resin such as a thermosetting resin, the synthetic resins impregnated in the prepregs 54 and 56 can be cured and bonded by heating. Of course, the heating means for the prepregs 54 and 56 is not limited to the hot gun 60, and a hot plate or a high-frequency generator for generating a high frequency may be used.

  Next, returning to FIG. 1 again, the operation of the fiber-reinforced composite material molding apparatus 10 will be described.

  The ends of the fiber bundles 14 in which the fiber-reinforced composite material is being molded are overlapped with the ends of the new fiber bundles 44 that are not used for molding. Then, the fiber bundle 14 being molded and the new fiber bundle 44 are bonded by the fiber bonding device 42 so that the overlapping region A has a plurality of bonding portions 48 and 50 bonded at a predetermined interval. Join with etc. The long fiber bundle 46 including the overlapping region A joined by the fiber joining device 42 is sent to the fiber supply device 12.

  The long fiber bundle 46 is fed out from the bobbin 16 of the fiber supply device 12, and the long fiber bundle 46 fed out from the bobbin 16 is adjusted to a predetermined tension by the fiber tension adjusting device 18 and sent out from the fiber supply device 12. .

  The long fiber bundle 46 delivered from the fiber supply device 12 is measured for the tension applied to the long fiber bundle 46 by the fiber tension measuring device 20. Here, the tension data of the long fiber bundle 46 measured by the fiber tension measuring device 20 is output from the fiber tension measuring device 20 to the control device 38 and is stored and stored in the data logger 40. In addition, for example, when a predetermined reference tension is not applied to the long fiber bundle 46, the control device 38 detects an abnormality in the tension and outputs an abnormality signal or the like. Thereby, for example, the fiber-reinforced composite material molding apparatus 10 stops.

  The long fiber bundle 46 that has passed through the fiber tension measuring device 20 is sent to the resin impregnation device 22. In the resin tank 24 in the resin impregnation apparatus 22, a liquid resin, for example, an epoxy resin is stored. The temperature of the resin is measured by a resin temperature sensor such as a thermocouple. Then, the resin temperature data is output from the resin temperature sensor to the control device 38, stored in the data logger 40, and stored. If the resin temperature is not the set resin temperature, for example, the control device 38 detects an abnormality in the resin temperature and outputs an abnormality signal or the like. Thereby, for example, the fiber-reinforced composite material molding apparatus 10 stops.

  The resin impregnated roller 26 comes into contact with the resin stored in the resin tank 24 as the roller rotates, and the resin adheres to the surface of the resin impregnated roller 26. The long fiber bundle 46 pressed by the first tension roller 28 and the second tension roller 30 comes into contact with the resin impregnation roller 26 and is impregnated with resin. Since the overlapping region A included in the long fiber bundle 46 has a plurality of joint portions 48 and 50 that are joined at a predetermined interval in the longitudinal direction, the roller of the resin-impregnated roller 26. Deformation in the overlapping region A can be more easily caused on the surface or the like. Thereby, the overlapping region A included in the long fiber bundle 46 can be more uniformly impregnated with the resin.

  The resin film thickness data measured by the resin film thickness meter 32 is output from the resin film thickness meter 32 to the control device 38. The output resin film thickness data is compared with a reference resin film thickness by the control device 38 and stored in the data logger 40. If the resin film thickness data is thinner than the reference resin film thickness, the control device 38 determines that the long fiber bundle 46 is not impregnated with an appropriate amount of resin, and an abnormal signal or the like is generated. Is output. Thereby, for example, the fiber-reinforced composite material molding apparatus 10 stops.

  The long fiber bundle 46 impregnated with resin passes through the second tension roller 30 and then is sent out to the filament winding device 34. The long fiber bundle 46 impregnated with the resin is wound around the mandrel 36 or the liner of the high-pressure tank by the filament winding device 34 by hoop winding or the like. Since the overlapping region A included in the long fiber bundle 46 has a plurality of joint portions 48 and 50 that are joined at a predetermined interval with respect to the longitudinal direction, the mandrel 36 or the high-pressure tank Deformation in the overlapping region A can be more easily caused on a curved surface such as a liner. Thereby, the long fiber bundle 46 impregnated with the resin can be more uniformly wound around the mandrel 36 or the liner of the high-pressure tank and laminated. Thereafter, the resin-impregnated long fiber bundle 46 wound around the mandrel 36 or liner is heated in a resin curing furnace (not shown) to cure the resin and form a fiber-reinforced composite material.

  Next, the case where a prepreg is used as a fiber bundle will be described.

  The end of the prepreg during molding of the fiber reinforced composite material is overlapped with the end of a new prepreg that is not used for molding. Then, the prepreg being molded and the new prepreg are joined with an adhesive or the like by the fiber joining device 42 so that the overlapping region A has a plurality of joint portions 48 and 50 joined at a predetermined interval. . The long prepreg including the overlapping region A bonded by the fiber bonding device 42 is sent to the fiber supply device 12. The long prepreg fed from the fiber supply device 12 is measured for the tension applied to the long prepreg by the fiber tension measuring device 20. Since the long prepreg is already impregnated with the resin, the long prepreg is directly sent to the filament winding apparatus 34.

  The long prepreg is wound around the mandrel 36 or the liner of the high-pressure tank by the filament winding device 34 by hoop winding or the like. Since the overlapping region A included in the long prepreg has a plurality of joint portions joined at predetermined intervals in the longitudinal direction, a curved surface such as a mandrel 36 or a liner of a high-pressure tank, etc. On the other hand, the deformation in the overlapping region A can be more easily generated. As a result, the long prepreg can be more uniformly wound around the mandrel 36 or the liner of the high-pressure tank and laminated. By heating a long prepreg wound around a mandrel 36 or a liner in a resin curing furnace (not shown), the resin is cured and a fiber-reinforced composite material is formed.

  According to the above configuration, the overlapping region included in the long fiber bundle has a plurality of bonding portions that are bonded to each other with a predetermined interval with respect to the long direction, so that the overlapping region can be easily deformed. Can be generated. As a result, a fiber reinforced resin composite material caused by a knotted ball formed by tying a fiber bundle being molded and a new fiber bundle, or rigidity produced by bonding all of the overlapping regions with a synthetic resin or the like. By suppressing the internal defects and shape anomalies, it is possible to suppress a decrease in mechanical strength and the like of the fiber reinforced composite material.

In embodiment of this invention, it is a figure which shows the structure of the fiber reinforced resin composite material shaping | molding apparatus. In embodiment of this invention, it is a figure which shows the overlapping area | region which has the several junction part joined in the shape of a dot at predetermined intervals with respect to the elongate direction. In embodiment of this invention, it is a figure which shows the overlapping area | region which has the some junction part joined in the striped form which provided the predetermined space | interval with respect to the elongate direction. In embodiment of this invention, it is a figure which shows the joining method of the junction part in the overlapping area | region of the fiber bundle in process and a new fiber bundle. In embodiment of this invention, it is a figure which shows the joining method of the junction part in the overlapping area | region of the prepreg in molding and a new prepreg.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Fiber reinforced composite material shaping | molding apparatus, 12 Fiber supply apparatus, 14,44 Fiber bundle, 16 Bobbin, 18 Fiber tension adjustment apparatus, 20 Fiber tension measuring apparatus, 22 Resin impregnation apparatus, 24 Resin tank, 26 Resin impregnation roller, 28 1 tension roller, 30 second tension roller, 32 resin film thickness meter, 34 filament winding device, 36 mandrel, 38 control device, 40 data logger, 42 fiber bonding device, 46 long fiber bundle, 48, 50, 58 bonding portion, 52 Adhesive supply nozzle, 54,56 prepreg, 60 hot gun.

Claims (3)

A fiber reinforced composite material molding apparatus for forming a fiber reinforced composite material as a long fiber bundle by overlapping and joining the end of one fiber bundle and the end of the other fiber bundle,
A thermosetting resin was supplied as an adhesive to the overlapping region of one fiber bundle and the other fiber bundle, and joined in a dotted manner with a predetermined interval in the longitudinal direction of the fiber bundle . A fiber bonding apparatus that forms a plurality of bonding portions, and includes a heating means that heats the bonding portions to cure the thermosetting resin; and
An apparatus for winding a long fiber bundle having a joint portion in which a thermosetting resin is cured;
Fiber-reinforced composite material molding apparatus, characterized in that it comprises a. A fiber reinforced composite material molding apparatus for forming a fiber reinforced composite material as a long fiber bundle by overlapping and joining the end of one fiber bundle and the end of the other fiber bundle ,
A thermosetting resin is supplied as an adhesive to the overlapping region of one fiber bundle and the other fiber bundle, and a plurality of pieces are joined in stripes with a predetermined interval in the longitudinal direction of the fiber bundle A fiber bonding apparatus that forms a bonding portion of the fiber bonding apparatus, including a heating unit that heats the bonding portion to cure the thermosetting resin;
An apparatus for winding a long fiber bundle having a joint portion in which a thermosetting resin is cured;
With
A fiber reinforced composite material molding apparatus , wherein a plurality of unjoined portions are provided between a plurality of joined portions joined in a striped manner . The fiber-reinforced composite material molding apparatus according to claim 1 or 2 ,
A fiber-reinforced composite material molding apparatus, wherein a long fiber bundle is wound around a liner of a pressure vessel.

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