JP6059907B2 - Conductive fiber reinforced resin heat processing apparatus and system using the same - Google Patents

Description

  The present invention relates to a heat processing apparatus for producing, for example, a composite material (CFRP) of carbon fiber and a thermoplastic resin, and a system using the heat processing apparatus.

  Carbon fiber and resin composite material (CFRP) is used as an aircraft body material, for example, due to its high strength and light weight. In recent years, it has been used for applications other than aircraft body materials, such as automotive parts. Development is underway.

  Here, CFRP used for aircraft body materials is formed of a carbon fiber sheet and a thermosetting resin, and the curing time of the thermosetting resin is as long as several hours.

  On the other hand, when CFRP used for the above-mentioned aircraft body material is used as the CFRP used for automobile parts, a very long curing (molding) time becomes a manufacturing bottleneck, and the thermoplastic resin The adoption of CFRP using the above has been studied.

  However, the thermoplastic resin has a very high viscosity and is difficult to impregnate the carbon fiber sheet, and it is difficult to impregnate the thermoplastic resin uniformly in the plane direction of the carbon fiber sheet. Here, after arranging the thermoplastic resin uniformly on at least one surface of the carbon fiber sheet, the thermoplastic resin may be heated to impregnate the carbon fiber sheet with the thermoplastic resin.

  In order to impregnate the carbon fiber sheet with the thermoplastic resin, as a method of heating the thermoplastic resin, as shown in Patent Document 1, induction heating is performed by a solenoid coil type or transverse coil type induction heating device. Things are being considered.

  However, in the case where the carbon fiber sheet is conveyed and heated using a conventional induction heating device, the temperature rise is suppressed at both ends in the direction (width direction) orthogonal to the conveying direction, resulting in a low temperature. There is a problem that the melting of the plastic resin becomes insufficient and the subsequent impregnation cannot be performed sufficiently.

  When CFRP is molded as a part, it is necessary to soften the thermoplastic resin by heating the CFRP and mold it with a press die or the like. For example, as shown in Patent Document 2, an induction heating device is used. Even if the CFRP is heated from the outside, the heat does not reach the inside of the CFRP and there is a problem that the molding is not successful without softening. In particular, when CFRP is heated using an induction heating device, there is a problem that the temperature rise at the end of the CFRP becomes insufficient, resulting in a failure in molding.

JP 2008-254437 A JP 2005-238758 A

  Therefore, the present invention has been made to solve the above-mentioned problems, and its main intended problem is to uniformly heat a sheet structure having a conductive fiber sheet and a thermoplastic resin throughout. To do.

  That is, the conductive fiber reinforced resin heat processing apparatus according to the present invention conveys a conductive fiber sheet and a sheet structure having a thermoplastic resin, while the conductive fiber sheet of the sheet structure has a frequency of 50 Hz to 1000 Hz. It is of a conveyance processing type in which the thermoplastic resin is softened or melted by induction heating, and is disposed above the conveyance path, the conveyance path in which the sheet structure is conveyed, and the conveyance to the center A first flat plate coil provided with a magnetic path orthogonal to the passage, and a second flat plate coil disposed below the transfer passage and provided with a magnetic path orthogonal to the transfer passage at the center. And a first outer magnetic path member that is disposed around the first flat coil and forms an outer magnetic path that guides the magnetic flux generated by the first flat coil to the left and right outer sides of the conveyance path; Said The outer peripheral magnetic path is arranged around the two flat coils and guides the magnetic flux generated by the second flat coil to the left and right outer sides of the transport path, and is connected to the first outer magnetic path member. A magnetic flux generated by the first and second flat plate coils by the first outer magnetic path member and the second outer magnetic path member. The sheet structure is configured to pass through both left and right ends of the sheet structure to be conveyed. The left and right end portions of the sheet structure are both end portions in the width direction of the sheet structure.

  If it is such, the magnetic flux which generate | occur | produced with the 1st and 2nd flat coil will circulate through the outer periphery magnetic path from the center magnetic path of a coil, and the 1st and 2nd flat coil An induced current is induced in the conductive fiber sheet of the sheet structure between them, and the conductive fiber sheet is heated. In particular, since the first and second outer peripheral magnetic path members extend the outer peripheral magnetic path to the left and right outer sides of the conveyance path, and the first and second outer peripheral magnetic path members are connected to each other, the conductive fiber sheet In addition to heating the left and right end portions of the outer peripheral magnetic path in the same manner as the central portion, the magnetic resistance of the outer peripheral magnetic path can be reduced. Thereby, since the conductive fiber sheet of the sheet structure can be heated uniformly over the width direction, the thermoplastic resin is uniformly softened or melted through the conductive fiber sheet. Accordingly, the thermoplastic fiber can be uniformly impregnated into the conductive fiber sheet, or a molded product using the conductive fiber reinforced resin can be easily molded. In addition, the left-right direction dimension of a conveyance path can be set suitably by adjusting the dimension of the 1st and 2nd outer periphery magnetic path member.

  Moreover, the conductive fiber reinforced resin heat processing apparatus according to the present invention is configured to perform induction heating of the conductive fiber sheet of the sheet structure for each sheet structure having the conductive fiber sheet and the thermoplastic resin at a medium frequency of 50 Hz to 1000 Hz. The first thermoplastic resin is of a batch processing type for softening or melting the thermoplastic resin, and is disposed on the upper side of the sheet structure and provided with a magnetic path perpendicular to the sheet structure at the center. A flat plate coil, a second flat plate coil disposed below the sheet structure, and provided with a magnetic path orthogonal to the sheet structure in the center, and the first flat plate coil A first outer peripheral magnetic path member that is arranged around and forms an outer peripheral magnetic path that guides the magnetic flux generated by the first flat plate coil to the outside of the sheet structure, and around the second flat plate coil Placed An outer peripheral magnetic path for guiding the magnetic flux generated by the second flat coil to the outside of the sheet structure, and a second outer magnetic path member connected to the first outer magnetic path member. The first outer peripheral magnetic path member and the second outer peripheral magnetic path member allow the magnetic flux generated by the first and second flat plate coils to pass through the end of the sheet structure. Features.

  If it is such, the magnetic flux which generate | occur | produced with the 1st and 2nd flat coil will circulate through the outer periphery magnetic path from the center magnetic path of a coil, and the 1st and 2nd flat coil An induced current is induced in the conductive fiber sheet of the sheet structure between them, and the conductive fiber sheet is heated. In particular, the first and second outer peripheral magnetic path members extend the outer peripheral magnetic path to the outside of the sheet structure, and the first and second outer peripheral magnetic path members are connected to each other. As well as the central portion, the end portion can be heated, and the magnetic resistance of the outer peripheral magnetic path can be reduced. Thereby, since the conductive fiber sheet of a sheet structure can be heated uniformly over, for example, the width direction, the thermoplastic resin is uniformly softened or melted through the conductive fiber sheet. Accordingly, the thermoplastic fiber can be uniformly impregnated into the conductive fiber sheet, or a molded product using the conductive fiber reinforced resin can be easily molded. In addition, the left-right direction dimension of a conveyance path can be set suitably by adjusting the dimension of the 1st and 2nd outer periphery magnetic path member.

  Furthermore, the conductive fiber reinforced resin heat processing apparatus according to the present invention is a sheet structure having a conductive fiber sheet and a thermoplastic resin, wherein the conductive fiber sheet is induction-heated at a medium frequency of 50 Hz to 1000 Hz, A first flat coil that softens or melts a thermoplastic resin and is disposed on the upper side of the sheet structure and provided with a magnetic path perpendicular to the sheet structure at the center; and the sheet A second flat coil disposed below the structure and provided with a magnetic path orthogonal to the sheet structure at the center, and disposed around the first flat coil; A first outer peripheral magnetic path member that forms an outer peripheral magnetic path through which a magnetic flux generated by one flat plate coil passes, and the second flat plate coil is disposed around the second flat plate coil. Magnetic flux A second outer peripheral magnetic path member that forms an outer peripheral magnetic path, and the first outer peripheral magnetic path member or a magnetic metal container disposed around the first outer peripheral magnetic path member, Around the first outer peripheral coil wound concentrically with the flat coil and the second outer peripheral magnetic path member or around the magnetic metal container disposed around the second outer peripheral magnetic path member, And a second outer peripheral coil wound concentrically, and the magnetic flux generated by the first and second outer coils passes through the end of the sheet structure. It is characterized by.

  If it is such, the center part of the conductive fiber sheet of a sheet structure can be heated with the 1st and 2nd flat coil. In addition, since the first and second outer peripheral coils are provided around the first and second outer magnetic path members or the magnetic metal container, the conductive fibers are generated by the magnetic flux generated by the first and second outer peripheral coils. The edge of the sheet can be heated. Thereby, since the conductive fiber sheet of the sheet structure can be heated uniformly over the width direction, the thermoplastic resin is softened or melted through the conductive fiber sheet. Accordingly, the thermoplastic fiber can be uniformly impregnated into the conductive fiber sheet, or a molded product using the conductive fiber reinforced resin can be easily molded. Furthermore, it is possible to control the temperature distribution in the width direction of the conductive fiber sheet by adjusting the energization amount of the first and second flat coils and the energization amount of the first and second outer peripheral coils. Become.

  In the above induction heating apparatus, in order to make the temperature distribution of the conductive fiber sheet more uniform, the first flat coil and the second flat coil are divided into a plurality of flat element coils. It is desirable that the plurality of flat element coils be arranged so as to be shifted from side to side. In particular, the first flat coil and the second flat coil are divided into two flat element coils having the same configuration and the same shape, and the central axis of one flat element coil is the other. It is desirable that the winding diameter of the flat element coil be arranged so as to be in a position that divides the winding diameter into two.

  Moreover, the conductive fiber reinforced resin heat processing apparatus according to the present invention is a sheet structure having a conductive fiber sheet and a thermoplastic resin, wherein the conductive fiber sheet is induction-heated at a medium frequency of 50 Hz to 1000 Hz, A first flat coil that softens or melts a thermoplastic resin and is disposed on the upper side of the sheet structure and provided with a magnetic path perpendicular to the sheet structure at the center; and the sheet A second flat coil disposed below the structure and provided with a magnetic path perpendicular to the sheet structure at the center; and provided around the first flat coil; A first outer magnetic path member that forms an outer magnetic path through which a magnetic flux generated by one flat coil passes, and the second flat coil that is provided around the second flat coil. Magnetic flux passes A second outer peripheral magnetic path member that forms an outer peripheral magnetic path; a magnetic metal container disposed around the first outer peripheral magnetic path member or the first outer peripheral magnetic path member; and the second outer peripheral magnetic path. An iron core member provided in contact with the outer surface of the sheet structure in the member or a magnetic metal container disposed around the second outer circumference magnetic path member, and an outer circumference wound around the iron core member And a magnetic flux generated by the outer peripheral coil by the iron core member passes through an end of the sheet structure.

  If it is such, the center part of the conductive fiber sheet of a sheet structure can be heated with the 1st and 2nd flat coil. Further, since the iron core member is provided in contact with the first and second outer magnetic path members or the magnetic metal container, and the outer coil is wound around the iron core member, the magnetic flux generated by the outer coil is generated by the first and second magnetic fluxes. The outer peripheral magnetic path member or the magnetic metal container and the end of the conductive fiber sheet can be passed, and the end of the sheet structure can be heated. Thereby, since the conductive fiber sheet of the sheet structure can be heated uniformly over the width direction, the thermoplastic resin is softened or melted through the conductive fiber sheet. Accordingly, the thermoplastic fiber can be uniformly impregnated into the conductive fiber sheet, or a molded product using the conductive fiber reinforced resin can be easily molded. Furthermore, it becomes possible to control the temperature distribution in the width direction of the conductive fiber sheet, for example, by adjusting the energization amount of the first and second flat coils and the energization amount of the outer peripheral coil.

  In order to insulate the heated conductive fiber sheet and the first and second flat plate coils and to hold or press the sheet structure using the heat insulating structure, the first flat coil and the first coil The sheet structure provided between the sheet structure and the first heat insulating member for insulating heat from the sheet structure, the second flat coil, and the sheet structure. It is preferable that the first heat insulating member and the second heat insulating member hold or press the sheet structure from above and below. In this case, it is possible to simplify the apparatus configuration by eliminating the need for a separate holding mechanism for holding the sheet structure in addition to the heat insulating member. Moreover, by setting it as the structure pressed, a conductive fiber sheet can also be impregnated with the thermoplastic resin heated and fuse | melted. Here, in order to reliably perform heat insulation and holding or pressing, it is desirable that the first heat insulating member and the second heat insulating member are held by covering the entire circumference of the sheet structure.

  The conductive fiber sheet is preferably a carbon fiber sheet. At this time, it is desirable that the sheet structure is configured by alternately laminating the carbon fiber sheets and the thermoplastic resin sheets. If it is this, while being able to arrange | position a thermoplastic resin uniformly on the surface of a carbon fiber sheet, the handling becomes easy.

  Moreover, the conductive fiber reinforced resin processing system according to the present invention applies pressure from both sides of the conductive fiber reinforced resin heat processing apparatus and the sheet structure heated by the conductive fiber reinforced resin heat processing apparatus. A pressing device for impregnating the conductive fiber sheet with a thermoplastic resin. If this is the case, the conductive fiber sheet can be uniformly impregnated with the thermoplastic resin uniformly heated on the entire surface of the conductive fiber sheet.

  Furthermore, the conductive fiber reinforced resin molding system according to the present invention applies pressure from both sides of the conductive fiber reinforced resin heat processing apparatus and the sheet structure heated by the conductive fiber reinforced resin heat processing apparatus. A pressing device that impregnates the conductive fiber sheet with a thermoplastic resin; and a molding device that molds the sheet structure impregnated with the thermoplastic resin by the pressing device with a press mold.

  Moreover, in the conductive fiber reinforced resin molding system according to the present invention, when the sheet structure is a conductive fiber sheet impregnated with a thermoplastic resin (for example, a prepreg), the above conductive fiber reinforced resin A resin heating processing device and a molding device for molding the sheet structure heated by the conductive fiber reinforced resin processing device with a press die.

  According to this invention comprised in this way, the sheet | seat structure which has a conductive fiber sheet and a thermoplastic resin can be heated uniformly over the whole. Thereby, a thermoplastic fiber can be uniformly impregnated into a conductive fiber sheet, or a molded product using a conductive fiber reinforced resin can be easily molded.

The schematic diagram which shows a sheet structure. The figure which shows the induction heat generation characteristic of carbon fiber. The schematic diagram which shows the conductive fiber reinforced resin molding system which concerns on this embodiment. Sectional drawing which shows the cross section orthogonal to the conveyance direction of the conductive fiber reinforced resin heat processing apparatus which concerns on the same embodiment. Sectional drawing which shows the cross section orthogonal to the conveyance direction of the conductive fiber reinforced resin heat processing apparatus which concerns on 2nd Embodiment. Sectional drawing which shows the cross section orthogonal to the conveyance direction of the conductive fiber reinforced resin heat processing apparatus which concerns on 3rd Embodiment. Sectional drawing which shows the cross section along the conveyance direction of the conductive fiber reinforced resin heat processing apparatus which concerns on 3rd Embodiment. The top view which shows the flat coil of the conductive fiber reinforced resin heat processing apparatus which concerns on deformation | transformation embodiment. The top view which shows the flat coil of the induction heating apparatus which concerns on deformation | transformation embodiment. The top view which shows the flat coil of the induction heating apparatus which concerns on deformation | transformation embodiment. The top view which shows the flat coil of the induction heating apparatus which concerns on deformation | transformation embodiment. The schematic diagram which shows the structure of the induction heating apparatus of deformation | transformation embodiment, the emitted-heat amount of 3 points | pieces of each flat element coil, and the total emitted-heat amount of each point of a sheet | seat structure. The longitudinal section of the batch processing type induction heating device concerning a modification. The longitudinal section of the batch processing type induction heating device concerning a modification. The cross-sectional view of the batch processing type induction heating apparatus according to a modified embodiment.

  Hereinafter, an embodiment of a conductive fiber reinforced resin molding system using the conductive fiber reinforced resin heat processing apparatus according to the present invention will be described with reference to the drawings.

<First Embodiment>
The conductive fiber reinforced resin molding system 1 according to the first embodiment continuously inductively heats a sheet structure W having a carbon fiber sheet and a thermoplastic resin, which are conductive fiber sheets, at a medium frequency of 50 Hz to 1000 Hz. Thus, a carbon fiber reinforced resin (CFRP) is produced, and the carbon fiber resin produced thereby is molded to produce a desired molded product.

  As shown in FIG. 1, the sheet structure W is a multilayer in which carbon fiber sheets W1 formed by processing a carbon fiber bundle into a sheet shape and thermoplastic resin sheets W2 made of a thermoplastic resin are alternately laminated. belongs to. In FIG. 1, the uppermost layer and the lowermost layer are the carbon fiber sheets W1, but they may be the thermoplastic resin sheet W2.

  Here, at a high frequency of 10 kHz to 100 kHz, the current penetration depth is as shallow as several microns, and the current penetration depth is used for induction heating of a carbon fiber cloth (carbon fiber fabric) of several hundred microns to several millimeters which is a CFRP substrate. A medium frequency of 50 Hz to 1000 Hz, which is several millimeters, is suitable. The characteristic graph shown in FIG. 2 shows the induction heating characteristic of the carbon fiber in the case of 200 Hz to 800 Hz. As can be seen from FIG. 2, the heat generation efficiency and the load power factor tend to gradually saturate as the frequency increases. It is estimated from this FIG. 2 that it is saturated around 1000 Hz, and considering the current penetration depth, it can be determined that 400 Hz to 1000 Hz is the optimum frequency for induction heating of the carbon fiber cloth serving as the CFRP base material. Since the generation of the intermediate frequency can be easily performed by connecting the transformers, the power source can be significantly reduced in cost compared to the high frequency that requires an inverter.

  Specifically, as shown in FIG. 3, the conductive fiber reinforced resin molding system 1 heats the carbon fiber sheet W1 of the sheet structure W to soften or melt the thermoplastic resin W2, thereby heating the conductive fiber reinforced resin. 100, a press apparatus 200 that impregnates the carbon fiber sheet W1 with the thermoplastic resin W2 by applying pressure from both sides of the sheet structure W heated by the conductive fiber reinforced resin heat processing apparatus 100, and the press apparatus 200 And a molding apparatus 300 that molds the sheet structure W (also referred to as a prepreg) impregnated with the thermoplastic resin W2 by the press dies K1 and K2. The press device 200 is a roll press, and has, for example, an upper roller R1 and a lower roller R2, and the sheet structure W is pressed and heated by passing the sheet structure W between the rollers R1 and R2. The plastic resin W2 is impregnated in the carbon fiber sheet W1. Further, the upper roller R1 and the lower roller R2 of the press device 200 are set at a temperature lower than the normal temperature or the melting point of the thermoplastic resin in order to impregnate the thermoplastic resin W2 into the carbon fiber sheet W1. The press device 200 may be a belt press in addition to a roll press. The molding apparatus 300 includes an upper mold K1 and a lower mold K2, and the prepreg W is disposed between the molds K1 and K2, and the prepreg W is formed by the upper mold K1 and the lower mold K2. Molded by pressing. Note that the thermoplastic resin in the prepreg W may be softened and melted separately by the conductive fiber reinforced resin heat processing apparatus 100 in molding by the molding apparatus 300. Further, when the prepreg is formed by being impregnated by pressing with a pressure roller or a pressure belt, the thermoplastic resin W2 oozes out from the carbon fiber sheet W1 and cannot be removed by adhering to the pressure roller or pressure belt. There is a problem that it ends up. Here, in the induction heating using the conductive fiber reinforced resin heating processing apparatus 100 shown below, the molten thermoplastic resin W2 is included in the carbon fiber sheet W1 by pulling both ends of the sheet structure W in the plane direction. It can also be invaded.

  As shown in FIG. 4, the conductive fiber reinforced resin heat processing apparatus 100 of the present embodiment is disposed on the upper side of the conveyance path 2 where the sheet structure W is conveyed, and the center portion. A first flat coil 3 provided with a magnetic path orthogonal to the conveyance path 2 and a second magnetic path disposed below the conveyance path 2 and provided with a magnetic path orthogonal to the conveyance path 2 at the center. Flat coil 4 and a first outer periphery that is arranged around the first flat coil 3 and forms an outer peripheral magnetic path that guides the magnetic flux generated by the first flat coil 3 to the left and right outer sides of the conveyance path 2. A second outer peripheral magnet which is arranged around the magnetic path member 5 and the second flat coil 4 and forms an outer peripheral magnetic path for guiding the magnetic flux generated by the second flat coil 4 to the left and right outer sides of the conveyance path 2. And a road member 6.

  The first flat coil 3 and the second flat coil 4 have the same configuration and the same shape, and have a substantially rectangular shape in plan view. Central iron cores 31 and 41 that form a coil center magnetic path are provided at the center of these flat coils 3 and 4. In addition, the widthwise dimension of the flat coils 3 and 4 is configured to be larger than the widthwise dimension of the sheet structure W conveyed to the conveyance path 2. Furthermore, an insulating plate 7 is provided between the first and second flat coil 4 and the conveyance path 2 to prevent a short circuit between the coils 3 and 4 and the sheet structure W. The insulating plate 7 forms upper and lower surfaces (upper and lower boundaries) of the conveyance path 2.

  The 1st outer periphery magnetic path member 5 and the 2nd outer periphery magnetic path member 6 are arrange | positioned around the 1st flat coil 3 and the 2nd flat coil 4, respectively. Specifically, the first outer peripheral magnetic path member 5 includes the upper surface, the front and rear side surfaces (side surfaces facing the direction along the transport direction), and the left and right side surfaces (the direction orthogonal to the transport direction) of the first flat coil 3. It is a coil housing container made of a magnetic metal that houses the first flat coil 3 by covering the opposing side surfaces, and has a substantially hollow rectangular parallelepiped shape with an open bottom surface. The second outer magnetic path member 6 is a coil container made of a magnetic metal that houses the second flat coil 4 by covering the lower surface, front and rear side surfaces, and left and right side surfaces of the second flat coil 4. It has a substantially hollow rectangular parallelepiped shape with an upper surface opened.

  In the present embodiment, in order to avoid the heat generation of the first and second outer magnetic path members 5 and 6, the first and second outer magnetic path members 5 and 6 are provided with slits S for preventing a short-circuit current. Forming. In addition, in order to avoid heat generation of the first and second outer magnetic path members 5 and 6, the first and second outer magnetic path members 5 and 6 are configured by laminating insulating thin plate magnetic bodies such as silicon steel. You may do it. Further, when the first and second outer peripheral magnetic path members 5 and 6 are also actively heated for use in auxiliary heating or the like, it is considered to adopt a solid or a magnetic body whose slit depth is adjusted. It is done.

  Furthermore, the left and right side walls 51 and 52 of the first outer peripheral magnetic path member 5 are located outside the transport path 2. In the present embodiment, the left and right side walls 51 and 52 are the left and right side surfaces (left and right sides) Forming a boundary). Similarly, the left and right side walls 61 and 62 of the second outer peripheral magnetic path member 6 are located outside the transport path 2, and the left and right side walls 61 and 62 define the left and right side surfaces (left and right boundaries) of the transport path 2. Form. Thus, in the present embodiment, the left and right side walls 51 and 52 of the first outer peripheral magnetic path member 5 and the left and right side walls 61 and 62 of the second outer peripheral magnetic path member 6 define the widthwise dimension of the transport path 2.

  The lower end portions of the left and right side walls 51 and 52 of the first outer peripheral magnetic path member 5 and the upper end portions of the left and right side walls 61 and 62 of the second outer peripheral magnetic path member 6 are connected to each other. By connecting the first outer magnetic path member 5 and the second outer magnetic path member 6 in this way, the magnetic resistance of the magnetic path through which the magnetic flux generated by the first and second flat coils 3 and 4 passes is reduced. The heating efficiency is improved by reducing the power factor and increasing the power factor.

  In this conductive fiber reinforced resin heat processing apparatus 100, the magnetic flux generated by the flat coils 3 and 4 is changed from the coil center magnetic path formed by the central cores 31 and 41 installed at the center of the coil to the outer peripheral magnetic path member 5. , 6 circulates through the outer peripheral magnetic path formed by. Thereby, an induced current is induced in the carbon fiber sheet W1 of the sheet structure W between the first flat coil 3 and the second flat coil 4, and the carbon fiber sheet W1 is heated. Moreover, since the left and right side walls 51 and 52 of the first outer peripheral magnetic path member 5 and the left and right side walls 61 and 62 of the second outer peripheral magnetic path member 6 extend to the outside of the carbon fiber sheet W1, the first and second The magnetic paths formed by the flat coils 3 and 4 pass through the left and right ends of the carbon fiber sheet W1 conveyed to the conveyance path 2, and the left and right ends of the carbon fiber sheet W1 can be reliably heated. As a result, the carbon fiber sheet W1 can be heated uniformly in the width direction, and the thermoplastic resin W2 disposed around the heated carbon fiber sheet W1 is heated by the carbon fiber sheet W1 to soften the thermoplastic resin. Or melt.

  According to the conductive fiber reinforced resin molding system 1 according to the present embodiment configured as described above, the magnetic flux generated in the first and second flat coils 3 and 4 is transmitted from the center magnetic path of the coils 3 and 4 to the outer periphery. Circulating through the magnetic path, an induced current is induced in the carbon fiber sheet W1 of the sheet structure W between the first and second flat plate coils 3 and 4, and the carbon fiber sheet W1 is heated. The In particular, the first and second outer peripheral magnetic path members 5 and 6 extend the outer peripheral magnetic path to the left and right outer sides of the conveyance path 2, and the first and second outer peripheral magnetic path members 5 and 6 are connected to each other. Therefore, not only can the left and right end portions of the carbon fiber sheet W1 be heated in the same manner as the central portion, but also the magnetic resistance of the outer peripheral magnetic path can be reduced. Thereby, since the carbon fiber sheet W1 of the sheet structure W can be heated uniformly over the width direction, the thermoplastic resin W2 is uniformly softened or melted through the carbon fiber sheet W1. Accordingly, the press device 200 can uniformly impregnate the carbon fiber sheet W1 with the thermoplastic resin W2, or the molding device 300 can easily mold the molded product using the carbon fiber reinforced resin. can do. In addition, the left-right direction dimension of the conveyance path 2 can be set suitably by adjusting the dimension of the 1st and 2nd outer periphery magnetic path members 5 and 6. FIG.

Second Embodiment
As shown in FIG. 5, in addition to the configuration of the first embodiment, the conductive fiber reinforced resin heat processing apparatus 100 according to the second embodiment further includes the first outer peripheral magnetic path member 5 on the outer side. The first outer peripheral coil 9 wound concentrically with the first flat coil 3 and the second outer peripheral magnetic path member 6 are wound concentrically with the second flat coil 4. 2 outer peripheral coils 10.

  Specifically, a first outer coil 9 is provided around the first outer magnetic path member 5, and a second outer coil 10 is provided around the second outer magnetic path member 6. The first outer coil 9 is provided by being wound around the first outer magnetic path member 5 concentrically with the first flat coil 3. The second outer peripheral coil 10 is provided by being wound around the second outer peripheral magnetic path member 6 concentrically with the first flat coil 3.

  A first cover member 11 made of a magnetic metal covering the upper surface and the side peripheral surface of the first outer peripheral coil 9 is provided around the first outer peripheral coil 9. Around the periphery, a second cover member 12 made of a magnetic metal that covers the lower surface and the side surface of the second outer coil 10 is provided. Moreover, the 1st cover member 11 and the 2nd cover member 12 are provided in the 1st outer periphery magnetic path member 5 and the 2nd outer periphery magnetic path member 6, respectively. The first cover member 11 and the second cover member 12 are formed with slits S for preventing heat generation.

  The first and second cover members 11, 12 cause the magnetic flux generated by the first and second outer coils 9, 10 to be applied to the side walls of the first outer magnetic path member 5 and the second outer magnetic path member 6. Magnetic paths that pass through the left and right ends of the sheet structure W are formed through the side walls. Thereby, the right and left both ends of the carbon fiber sheet W1 of the sheet structure W can be reliably heated.

  In addition, the free end part (lower end part of the side wall) of the 1st cover member 11 and the free end part (upper end part of the side wall) of the 2nd cover member 12 are mutually connected, and the 1st and 2nd outer periphery coil The heating efficiency may be improved by reducing the magnetic resistance of the magnetic path through which the magnetic flux generated by 9, 10 passes, and increasing the power factor.

  In the conductive fiber reinforced resin heat processing apparatus 100 of the second embodiment, the carbon fiber of the sheet structure W is adjusted by adjusting the energization amount of the flat coils 3 and 4 and the energization amount of the outer peripheral coils 9 and 10. It becomes possible to control the temperature distribution in the width direction of the sheet W1.

<Third Embodiment>
As shown in FIGS. 6 and 7, the conductive fiber reinforced resin heat processing apparatus 100 according to the third embodiment further includes the first outer magnetic path member 5 and the first in addition to the configuration of the first embodiment. The outer peripheral magnetic path member 6 has an iron core member 13 provided in contact with the left and right outer surfaces, and an outer coil 14 wound around the iron core member 13.

  The iron core member 13 is a cut core type wound iron core, one cut surface is provided in surface contact with the side surface of the first outer magnetic path member 5, and the other cut surface is the second outer magnetic path member 6. It is provided in surface contact with the side surface of. In addition, as shown in FIG. 7, a plurality of iron core members 13 and outer peripheral coils 14 are provided on the left and right (four on the left and right in FIG. 7) along the conveying direction of the sheet structure W.

  By this iron core member 13, the magnetic flux generated by the outer peripheral coil 14 passes through the left and right ends of the sheet structure W via the side wall of the first outer peripheral magnetic path member 5 and the side wall of the second outer peripheral magnetic path member 6. A magnetic path is formed. Thereby, the right and left both ends of the carbon fiber sheet W1 of the sheet structure W can be reliably heated.

  In order to suppress the heat generation of the first and second outer peripheral magnetic path members 5 and 6 and increase the heat generation ratio of the left and right ends of the carbon fiber sheet W1 of the sheet structure W, the first and second outer peripheral magnetic paths A slit S having an appropriate depth is processed on the contact surface of the iron core member in the road members 5 and 6 to reduce the short-circuit current.

  Similarly to the second embodiment, the temperature distribution in the width direction of the carbon fiber sheet W1 of the sheet structure W is adjusted by adjusting the energization amount of the flat coils 3 and 4 and the energization amount of the outer peripheral coil 14. It becomes possible to control.

  The present invention is not limited to the above embodiments.

  For example, as shown in FIG. 8, the first flat coil 3 and the second flat coil 4 are divided into a plurality of flat element coils, and the plurality of flat element coils are shifted to the left and right. It may be arranged. FIG. 8 shows a case where the flat coils 3 and 4 are divided into two flat element coils C1 and C2 having the same configuration and the same shape. The two flat element coils C1 and C2 have a substantially rectangular shape in plan view like the flat coils 3 and 4, and a central iron core C11 that forms a coil central magnetic path at the center thereof. , C12 is provided. The two flat element coils C1 and C2 are arranged such that the central axis faces the same direction, and the central axis of one flat element coil C1 is the winding coil of the other flat element coil C2. It arrange | positions so that it may become a position which divides a winding diameter into two. That is, when the width dimension of the central cores C11 and C12 of the flat element coils C1 and C2 is 2S and the winding diameter of the winding coil of the flat element coils C1 and C2 is D, the deviation width of the two central axes is , D / 2 + S. Thereby, the left and right temperature distribution of the sheet structure W can be made more uniform.

  Further, as shown in FIG. 9, the first flat coil 3 and the second flat coil 4 are divided into a plurality of flat element coils C, and at least one flat plate in the width direction orthogonal to the conveying direction. The coil units Cx formed by disposing the element coils C are arranged in multiple stages along the conveying direction, and at least one coil unit Cx includes a flat element coil C constituting the coil unit Cx from the sheet structure W. You may arrange | position so that it may protrude to the width direction outer side. Specifically, the flat element coils C constituting the two adjacent coil units Cx are arranged shifted in the width direction.

  In FIG. 9, the first flat coil 3 and the second flat coil 4 are divided into four flat element coils C1 to C4 having the same shape, and two flat plates in the width direction perpendicular to the conveying direction. Coil units Cx1 and Cx2 formed by arranging the element coils C1 and C2, C3 and C4 are arranged in two stages along the conveying direction. The right flat element coil C1 constituting the coil unit Cx1 on the upstream side of the conveyance is arranged such that the right side portion of the right side flat element coil C1 protrudes to the right side of the right end portion of the sheet structure W. Further, the left side portion of the left plate-shaped element coil C4 constituting the coil unit Cx2 on the downstream side of the conveyance is arranged so as to protrude to the left side from the left end portion of the sheet structure W.

  Here, when the width dimension of the central core of the flat element coils C1 to C4 is 2S and the winding diameter of the winding coil of the flat element coils C1 to C4 is D, from the center in the flat element coils C1 to C4. The position of the distance “D / 2 + S”, that is, the position at which the winding diameter of the winding coil in the flat element coils C1 to C4 is divided into two, generates the largest amount of heat.

  Therefore, one end and the other end in the width direction of the sheet structure W are in the middle of the conveyance in at least one coil unit Cx1, Cx2, and “D / It is configured to pass through the position of “2 + S”. If it is this, the width direction one end part and other end part of the sheet | seat structure W can be heated efficiently.

  In FIG. 9, in plan view, the right end of the sheet structure W passes through the position “D / 2 + S” from the center of the coil C1 on the right side of the flat element coil C1, and the left end of the sheet structure W Passes through the position of “D / 2 + S” from the center of the coil C4 on the left side of the flat element coil C4. In addition, since both the upstream coil unit Cx1 and the downstream coil unit Cx2 are composed of the same plate-shaped element coils C1 to C4, the upstream upstream coil unit Cx1 and the downstream transport coil unit Cx2 The deviation width is D / 2 + S. Further, the first flat coil group 3 and the second flat coil group 4 are arranged so that the plurality of flat element coils C1 to C4 are point-symmetric with respect to the center X of the coil group in plan view. Has been. Further, the protruding part shape of the flat element coil C1 protruding from the right end part of the sheet structure W is the same as the protruding part shape of the flat element coil C4 protruding from the left end part of the sheet structure W. Become.

  The sheet structure W that passes between the first flat coil group 3 and the second flat coil group 4 having the above configuration first passes through the upstream coil unit Cx1. At this time, the right end portion of the sheet structure W passes through the position of “D / 2 + S” from the center of the coil C1 on the right side of the flat plate element coil C1 on the right side of the coil unit Cx1 on the upstream side in plan view. On the other hand, the left end portion of the sheet structure W passes through the left end of the flat element coil C2 on the left side of the coil unit Cx1 on the upstream side in the plan view or the vicinity thereof in the plan view.

  Next, the sheet structure W passes through the coil unit Cx2 on the downstream side of conveyance. At this time, the right end portion of the sheet structure W passes through the right end or the vicinity thereof of the flat plate element coil C3 on the right side of the coil unit Cx2 on the downstream side in plan view. On the other hand, the left end portion of the sheet structure W passes through a position “D / 2 + S” from the center of the coil C4 on the left side of the flat plate element coil C4 on the left side of the coil unit Cx2 on the downstream side in plan view.

  Thus, the right end portion of the sheet structure W that has passed through the conveyance path 2 passes through the position of “D / 2 + S” of the flat element coil C1 and the right end of the flat element coil C3 or the vicinity thereof, and the sheet structure The left end of the body W passes through the position “D / 2 + S” of the flat element coil C4 and the left end of the flat element coil C2 or the vicinity thereof. Thereby, the calorific values at the left and right ends of the sheet structure W are the same, and the temperature at the right end and the left end of the sheet structure W can be made substantially the same.

  Further, in the first flat coil group 3 and the second flat coil group 4, the plurality of flat element coils C <b> 1 to C <b> 4 are point symmetric with respect to the center X of the coil group. The amount of heat generated in each part in the width direction of the sheet structure W becomes symmetrical with respect to the center in the width direction of the sheet structure W, and the temperature distribution in the width direction of the sheet structure W can be made uniform.

  For example, in the above embodiment, the coil units composed of two flat element coils are arranged in two stages along the transport direction. In addition, as shown in FIG. The coil groups 3 and 4 may be configured such that the coil units Cx including one flat element coil C are arranged in multiple stages (two stages in FIG. 10) along the transport direction. Even in this case, the right end portion of the sheet structure W passes through the position “D / 2 + S” from the center of the coil C1 on the right side of the coil unit Cx1 (flat element coil C1) upstream of the conveyance. The left end portion of the sheet structure W passes through the position “D / 2 + S” from the coil center on the left side of the coil unit Cx2 (flat element coil C2) on the downstream side of the conveyance.

  Further, as shown in FIG. 11, three or more (three in FIG. 11) coil units Cx including three or more (three in FIG. 11) flat element coils C may be arranged along the transport direction. good. At this time, the deviation of the (flat plate element coil C) between adjacent coil units Cx is adjusted to make the temperature distribution in the width direction of the sheet structure W uniform. In FIG. 11, the deviation width between the most upstream coil unit Cx1 and the most downstream coil unit Cx3 is D / 2 + S, and the middle conveyance coil unit Cx2 is the middle deviation width (D / 4 + S / 2). It is arranged to be.

  Further, the number of flat element coils C constituting each coil unit Cx may be different, and the shape of the flat element coils C constituting each coil unit Cx may not be the same. Moreover, you may use the flat element coil C of a different shape within one coil unit Cx. Thus, the temperature distribution in the width direction can be made uniform by combining various numbers and shapes.

  FIG. 12 illustrates the coil groups 3 and 4 having three coil units Cx1 to Cx3. In FIG. 12, the most upstream coil unit Cx1 and the most downstream coil unit Cx3 are made up of two types of large and small flat element coils Cm and Cn, and the middle transfer coil unit Cx2 is one kind of flat element coil Ch. The case consisting of is shown.

  Specifically, the most upstream coil unit Cx1 and the most downstream coil unit Cx3 are composed of one small flat element coil Cm and four large flat element coils Cm. The midstream coil unit Cx2 is 4 It consists of two large flat element coils Ch. The small flat element coil Cn is 1/2 the size of the large flat element coil Cm, and the larger flat element coil Cm in the most upstream coil unit Cx1 and the most downstream coil unit Cx3 of the transfer The flat element coil Ch of the coil unit Cx2 in the middle of the conveyance has the same shape.

  In plan view, the most upstream coil unit Cx1 and the most downstream coil unit Cx3 are disposed so as to protrude from the left and right ends of the sheet structure W. Specifically, in the coil unit Cx1 at the most upstream side of the conveyance, the left end portion of the sheet structure W passes through the position “D / 2 + S” from the center of the coil Cm on the left side of the large flat element coil Cm on the left side. The right end of the sheet structure W passes through the center of the rightmost small flat element coil Cn. Further, in the coil unit Cx3 at the most downstream side of the conveyance, the right end portion of the sheet structure W passes the position “D / 2 + S” from the center of the coil Cm on the right side of the large flat element coil Cm on the rightmost side. The left end of the structure W passes through the center of the leftmost small flat element coil Cn. Furthermore, in the coil unit Cx2 in the middle of the conveyance, the left and right ends of the sheet structure W pass through the left and right ends of the large flat element coil Cm on the left and right sides or in the vicinity thereof.

  Further, the heat generation amount of the sheet structure when passing through three points (center position, “D / 2 + S” position, left and right end positions) of the large flat element coil is center position: 2, “D / 2 + S”. Position: 3, left and right end position: 1, and the amount of heat generated by the sheet structure W when passing through two points (center position, left and right end positions) of the small flat element coil is the center position: 2, Since the position of the left and right ends is 1, in the coil group configuration shown in FIG. 12, the total heat generation amount of each part of the sheet structure W that has passed through the conveyance path is a value shown on the lower side of FIG.

  In addition, when each coil unit is composed of two or more flat element coils, the magnetic flux is adjusted by controlling the current flowing through each flat element coil so that the temperature distribution in the width direction of the sheet structure W is adjusted. It can also be controlled.

  In addition, the side walls of the coil storage containers arranged above and below may be connected to each other in a portion that does not interfere with the passage of the sheet structure in the conveyance path. By connecting the side walls of the upper and lower coil containers in this manner, the magnetic resistance of the magnetic path through which the magnetic flux generated by the flat element coil passes is further reduced, and the heating factor is further improved by increasing the power factor. be able to.

  In addition, in each of the above embodiments, the conveyance processing type induction heating apparatus is configured to convey and continuously process one or a plurality of sheet structures, but the present invention is a batch processing type that performs induction heating for each sheet structure. It can also be applied to the induction heating apparatus.

  In this case, as shown in FIG. 13, the first flat coil 3 disposed on the upper side of the sheet structure W and provided with a magnetic path orthogonal to the sheet structure W at the center, and the sheet structure W The first flat plate is disposed around the first flat plate coil 3 and the second flat plate coil 4 disposed at the lower side and provided with a magnetic path orthogonal to the sheet structure W at the center. The first outer peripheral magnetic path member 5 that forms the outer peripheral magnetic path for guiding the magnetic flux generated by the coil 3 to the outside of the sheet structure W, and the second flat plate coil 4 are arranged around the second flat plate coil 4. An outer peripheral magnetic path for guiding the magnetic flux generated by the coil 4 to the outside of the sheet structure W is formed, and a second outer peripheral magnetic path member 6 connected to the first outer peripheral magnetic path member 5 is provided. Then, the first outer peripheral magnetic path member 5 and the second outer peripheral magnetic path member 6 allow the magnetic flux generated by the first and second flat coils 3 and 4 to pass through the planar end of the sheet structure W. It is configured. In addition, in FIG. 13, since the 1st outer periphery magnetic path member 5 and the 2nd outer periphery magnetic path member 6 make a rectangular parallelepiped shape, when the sheet structure W which makes a planar view rectangular shape is induction-heated, The four side end portions (peripheral end portions) can be heated in the same manner as the central portion of the sheet structure W, and the temperature distribution in the planar direction of the sheet structure W can be made uniform.

  Here, between the 1st flat coil 3 and the sheet structure W, the 1st heat insulation member D1 which insulates the heat from the sheet structure W is provided, and the 2nd flat coil 4 and Between the sheet structures W, a second heat insulating member D2 for insulating heat from the sheet structures W is provided. The first heat insulating member D1 is provided in the entire space surrounded by the insulating plate 7 provided on the lower surface of the first flat coil 4 and the four side walls (front, rear, left and right side walls). The second heat insulating member D2 is provided in the entire space surrounded by the insulating plate 7 provided on the upper surface of the second flat coil 4 and the four side walls (front and rear, left and right side walls). The first heat insulating member D1 and the second heat insulating member D2 are configured to hold the sheet structure W from above and below. Specifically, the 1st heat insulation member D1 and the 2nd heat insulation member D2 hold | maintain by covering the perimeter of the sheet | seat structure W. FIG. In this case, in addition to the heat insulating members D1 and D2, a holding mechanism for separately holding the sheet structure W is unnecessary, and the apparatus configuration can be simplified. Moreover, since the 1st heat insulation member D1 and the 2nd heat insulation member D2 hold | maintain by covering all the surfaces of the sheet | seat structure W, a heat insulation and holding | maintenance can be performed reliably. The sheet structure W is held by the first heat insulating member D1 and the second heat insulating member D2, and at the same time, the first heat insulating member D1 and the second heat insulating member D2 are configured to press the sheet structure W. May be. In this case, the carbon fiber sheet W1 of the sheet structure W can be heated, and the carbon fiber sheet W1 can be impregnated with the softened or melted thermoplastic resin W2.

  Further, as shown in FIGS. 14 and 15, the conveyance processing type induction heating device of the third embodiment may be a batch processing type induction heating device. In this case, the iron core member 13 and the outer peripheral coil 14 are connected to the first container 151 provided around the first outer magnetic path member 5 and the second container provided around the second outer magnetic path member 6. A plurality of four side surfaces 152 (front and rear, left and right side surfaces) are provided. Even in this case, the sheet structure is held by the first heat insulating member D1 and the second heat insulating member D2. In addition, you may provide the iron core member 13 so that it may contact the side surface of the 1st and 2nd outer periphery magnetic path members 5 and 6, without having the 1st and 2nd containers 151 and 152, respectively.

  In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Conductive fiber reinforced resin molding system 1 ... Conductive fiber reinforced resin heat processing apparatus W ... Sheet structure (or prepreg)
2 ... conveying path 3 ... first flat coil 4 ... second flat coil 5 ... first outer peripheral magnetic path member (first magnetic metal container)
6 ... 2nd outer periphery magnetic path member (2nd magnetic metal container)
7 ... Insulating plate 9 ... First outer coil 10 ... Second outer coil 11 ... First cover member 12 ... Second cover member 13 ... Iron core member 14 .... Peripheral coil C1 ... Flat element coil C2 ... Flat element coil

Claims (11)

Conveying to heat or soften the thermoplastic resin by inductively heating the conductive fiber sheet of the sheet structure at a medium frequency of 50 Hz to 1000 Hz while conveying the sheet structure having the conductive fiber sheet and the thermoplastic resin. Of processing type,
A conveyance path through which the sheet structure is conveyed;
A first flat coil disposed on the upper side of the transfer path and provided with a magnetic path orthogonal to the transfer path at the center;
A second flat coil disposed below the transport path and provided with a magnetic path perpendicular to the transport path at the center;
A first outer magnetic path member disposed around the first flat coil and forming an outer magnetic path for guiding the magnetic flux generated by the first flat coil to the left and right outer sides of the conveyance path;
An outer peripheral magnetic path is disposed around the second flat coil and guides the magnetic flux generated by the second flat coil to the left and right outer sides of the transport path, and the first outer magnetic path member and A second outer peripheral magnetic path member to be connected,
The first outer peripheral magnetic path member and the second outer peripheral magnetic path member cause the magnetic flux generated by the first and second flat plate coils to pass through both left and right ends of the sheet structure conveyed to the conveyance path. Is configured as
The first flat coil and the second flat coil are divided into two flat divided coils having the same configuration and the same shape, and the central axis of one flat divided coil is the other flat plate. An electrically conductive fiber reinforced resin heat processing apparatus, wherein the winding diameter of the winding coil of the shape split coil is shifted to the left and right so as to be a position to divide into two . Batch processing type in which for each sheet structure having a conductive fiber sheet and a thermoplastic resin, the conductive fiber sheet of the sheet structure is induction-heated at a medium frequency of 50 Hz to 1000 Hz to soften or melt the thermoplastic resin. Of
A first flat coil disposed on the upper side of the sheet structure and provided with a magnetic path perpendicular to the sheet structure at the center;
A second flat coil disposed below the sheet structure and provided with a magnetic path perpendicular to the sheet structure at the center;
A first outer magnetic path member disposed around the first flat coil and forming an outer magnetic path for guiding the magnetic flux generated by the first flat coil to the outside of the sheet structure;
An outer peripheral magnetic path is disposed around the second flat coil and guides the magnetic flux generated by the second flat coil to the outside of the sheet structure, and the first outer magnetic path member and A second outer peripheral magnetic path member to be connected,
The first outer peripheral magnetic path member and the second outer peripheral magnetic path member are configured so that the magnetic flux generated by the first and second flat coil passes through the end of the sheet structure ,
A first heat insulating member provided between the first flat coil and the sheet structure to insulate heat from the sheet structure;
A second heat insulating member that is provided between the second flat coil and the sheet structure and insulates heat from the sheet structure;
The conductive fiber-reinforced resin heat processing apparatus, wherein the first heat insulating member and the second heat insulating member hold the sheet structure from above and below . Inductively heating a sheet structure conductive fiber sheet having a conductive fiber sheet and a thermoplastic resin at a frequency of 50 Hz to 1000 Hz to soften or melt the thermoplastic resin,
A first flat coil disposed on the upper side of the sheet structure and provided with a magnetic path perpendicular to the sheet structure at the center;
A second flat coil disposed below the sheet structure and provided with a magnetic path perpendicular to the sheet structure at the center;
A first outer magnetic path member disposed around the first flat coil and forming an outer magnetic path through which the magnetic flux generated by the first flat coil passes;
A second outer peripheral magnetic path member disposed around the second flat coil and forming an outer peripheral magnetic path through which the magnetic flux generated by the second flat coil passes;
The first outer peripheral coil wound around the first outer peripheral magnetic path member or the magnetic metal container disposed around the first outer peripheral magnetic path member and concentrically with the first flat coil. When,
The second outer peripheral coil wound around the second outer peripheral magnetic path member or the magnetic metal container disposed around the second outer peripheral magnetic path member and concentrically with the second flat coil. And
A conductive fiber reinforced resin heat processing apparatus, wherein the magnetic flux generated by the first and second outer peripheral coils passes through an end of the sheet structure. In the sheet structure having a conductive fiber sheet and a thermoplastic resin, the conductive fiber sheet is induction-heated at a medium frequency of 50 Hz to 1000 Hz to soften or melt the thermoplastic resin,
A first flat coil disposed on the upper side of the sheet structure and provided with a magnetic path perpendicular to the sheet structure at the center;
A second flat coil disposed below the sheet structure and provided with a magnetic path perpendicular to the sheet structure at the center;
A first outer magnetic path member provided around the first flat coil and forming an outer magnetic path through which the magnetic flux generated by the first flat coil passes;
A second outer peripheral magnetic path member provided around the second flat coil and forming an outer peripheral magnetic path through which the magnetic flux generated by the second flat coil passes;
A magnetic metal container disposed around the first outer peripheral magnetic path member or the first outer peripheral magnetic path member, and disposed around the second outer peripheral magnetic path member or the second outer peripheral magnetic path member. An iron core member provided in contact with the outer surface of the sheet structure in the magnetic metal container,
An outer peripheral coil wound around the iron core member,
A conductive fiber reinforced resin heat processing apparatus, characterized in that a magnetic flux generated by the outer peripheral coil by the iron core member passes through an end of the sheet structure. A first heat insulating member provided between the first flat coil and the sheet structure to insulate heat from the sheet structure;
A second heat insulating member provided between the second flat coil and the sheet structure to insulate heat from the sheet structure;
The conductive fiber reinforced resin heat processing apparatus according to claim 3 or 4, wherein the first heat insulating member and the second heat insulating member hold or press the sheet structure from above and below.   The conductive fiber reinforced resin heat processing apparatus according to claim 5, wherein the first heat insulating member and the second heat insulating member are held or pressed by covering an entire circumference of the sheet structure.   The conductive fiber reinforced resin heat processing apparatus according to any one of claims 1 to 6, wherein the conductive fiber sheet is a carbon fiber sheet.   The heat processing apparatus for conductive fiber reinforced resin according to claim 7, wherein the sheet structure is configured by alternately laminating the carbon fiber sheets and thermoplastic resin sheets. The conductive fiber reinforced resin heat processing apparatus according to any one of claims 1 to 8,
A conductive fiber reinforced resin processing system comprising: a press device that impregnates the thermoplastic resin into the conductive fiber sheet by applying pressure from both sides of the sheet structure heated by the conductive fiber reinforced resin heat processing device. The conductive fiber reinforced resin heat processing apparatus according to any one of claims 1 to 8,
A press device that impregnates the thermoplastic resin into the conductive fiber sheet by applying pressure from both sides of the sheet structure heated by the conductive fiber reinforced resin heat processing device;
A conductive fiber reinforced resin molding system comprising: a molding device that molds a sheet structure impregnated with a thermoplastic resin by the pressing device with a press die. The conductive fiber reinforced resin heat processing apparatus according to any one of claims 1 to 8,
A conductive fiber reinforced resin molding system comprising: a molding device that molds a sheet structure heated by the conductive fiber reinforced resin processing device with a press die.