JP3703684B2 - FRP prepreg manufacturing apparatus and FRP fiber fabric manufacturing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for manufacturing a prepreg for FRP and an apparatus for manufacturing a fiber fabric for FRP.
[0002]
[Prior art and problems to be solved by the invention]
FRP (fiber reinforced resin) products, for example, are obtained by applying epoxy resin to a woven fabric made of carbon fiber, impregnating and pressing to obtain a prepreg, and then polymerizing, pressing, deforming and cutting a plurality of the prepregs to obtain a predetermined prepreg. It is manufactured by processing into thickness and shape.
[0003]
By the way, when this FRP product superposes a plurality of prepregs so that the formed product exhibits as much strength as possible in all directions, as shown in FIG. A prepreg obtained from the warp and weft fiber woven fabric 9 in which the warp and weft yarns are disposed in an oblique direction of 45 °, and a prepreg obtained from the warp and weft fiber woven fabric 5 in which the warp and weft are disposed in a 45 ° oblique direction. It is manufactured by a method of alternately polymerizing (note that the same reference numerals are given to the same components as in the examples).
[0004]
FIG. 1 shows a structure in which two warp and weft fiber fabrics 9 and two oblique yarn fiber fabrics 5 are laminated, and a predetermined direction of the prepreg is between the warp and weft fiber fabrics 9 and 5. In order to increase the strength against the above, the case where the axial thread R is disposed is shown.
[0005]
However, this FPR product manufacturing method has the following problems.
[0006]
That is, when manufacturing a very large FPR product, for example, a large FPR product having a length of 6 m, the oblique yarn fiber fabric 5 is also required to have a length of 5 to 6 m. It is extremely troublesome to manufacture a long one having a length of 5 to 6 m.
[0007]
Specifically, the oblique yarn fiber fabric 5 is formed by cutting a warp weft fiber fabric 9 woven by a known weaving machine at an angle of 45 ° as shown in FIG. Therefore, in order to obtain the oblique yarn fiber fabric 5 having a length of 6 m, the warp and weft fiber fabric 9 having a length and a width of about 4.3 m is required. However, such a warp weft fiber woven fabric 9 having a long width direction cannot be woven by a weaving machine of a method in which weft yarn is blown by air jet or water jet at the time of weaving. Another weaving machine has a problem that the weaving speed is slow and the production cost is high.
[0008]
Therefore, conventionally, a warp weft fiber fabric 9 having a width of about 2 m, which is normally woven, is cut at an angle of 45 ° and an oblique yarn fiber fabric having a length of about 2.5 m is joined to form a diagonal length of a predetermined length. A method for manufacturing the spun fiber fabric 5 is employed. However, this method has a problem that the strength of the seam portion is weak.
[0009]
Accordingly, there is a demand in the industry for a technique that can easily produce a long or wide oblique yarn fiber fabric 5.
[0010]
The present invention has been achieved in view of the above-mentioned demand, and has excellent practicality and productivity that can easily obtain a long slanted yarn fiber fabric or prepreg used in a very large FRP product. Provide technology.
[0011]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0012]
A mandrel 1 that is movable in the axial direction is inserted into a braider 2 having an inclined yarn supply unit 3, and the inclined yarn supply unit 3 is predetermined on the outer peripheral surface of the mandrel 1 with respect to the axis of the mandrel 1. The oblique yarn S is supplied at an angle ± θ, and the tubular fabric 4 is woven on the outer peripheral surface of the mandrel 1 by supplying the plurality of oblique yarns S from the oblique yarn supply unit 3. The cylindrical fabric 4 is coated and impregnated with a synthetic resin to form a cylindrical prepreg 29, and the cylindrical prepreg 29 is cut in the axial direction of the mandrel 1 so that the plurality of oblique yarns S are formed. An FRP prepreg manufacturing apparatus for manufacturing a prepreg 39 of a long slanted warp fiber woven fabric 5 arranged, in the vicinity of the mandrel 1 and on the rear side of the brader 2, the outer periphery of the mandrel 1 An uncured or semi-cured synthetic resin layer is placed on the surface. Kicking synthetic resin coating unit 19 are mounted on the front side of the braider 2 in the vicinity of the mandrel 1, semi-curing section 37 is provided, et al is that allowed to integrate the synthetic resin layer and the tubular fabric 4 allowed semi-curing, Further, a drive unit 27 for moving the mandrel 1 in a predetermined direction is provided. As the mandrel 1, after the mandrel 1 is moved in the axial direction by the drive unit 27 , the foremost divided mandrel 1a is removed, and the detached divided mandrel is removed. Production of a prepreg for FRP, characterized in that a mandrel 1 having a structure in which a plurality of divided mandrels 1a are joined so as to join 1a to the rear part of the rearmost divided mandrel 1a is adopted. It concerns the device.
[0013]
Further, in the FRP prepreg manufacturing apparatus according to claim 1, the synthetic resin coating unit 19 is provided with a resin tape 20 coated with an uncured or semi-cured synthetic resin on the release paper 24, and the resin tape A synthetic resin layer is formed on the outer peripheral surface of the mandrel 1 by spirally supplying and winding the resin tape 20 around the outer surface of the mandrel 1 so that the release paper 24 side of the 20 is in contact with the mandrel 1. It is related with the manufacturing apparatus of the prepreg for FRP characterized by being comprised by these.
[0014]
Further, in the FRP prepreg manufacturing apparatus according to any one of claims 1 and 2, provided on the outer peripheral surface of the mandrel 1 between the brader 2 and the semi-cured portion 37 in the vicinity of the mandrel 1. A second synthetic resin coating portion 21 is provided on the outer peripheral surface of the cylindrical fabric 4 thus formed to provide an uncured or semi-cured second synthetic resin layer, and the synthetic resin layer and the cylindrical shape on the outer peripheral surface of the mandrel 1 are provided. The present invention relates to an apparatus for manufacturing a prepreg for FRP, characterized in that the woven fabric 4 and the second synthetic resin layer are integrated by a semi-cured portion 37.
[0015]
Further, in the FRP prepreg manufacturing apparatus according to claim 3, the second synthetic resin application part 21 is provided with a second resin tape 22 in which an uncured or semi-cured synthetic resin is applied to a release paper, The resin tape 20 is spirally supplied and wound around the outer peripheral surface of the mandrel 1 so that the synthetic resin side of the second resin tape 22 is in contact with the tubular woven fabric 4 and is synthesized on the outer peripheral surface of the mandrel 1. The present invention relates to a prepreg manufacturing apparatus for FRP, which is configured to form a resin layer.
[0016]
Further, in the FRP prepreg manufacturing apparatus according to any one of claims 1 to 4 , in the vicinity of the mandrel 1, between the brader 2 and the synthetic resin coating unit 19, the axial direction of the mandrel 1 is set. An axial yarn supply section 6 for supplying an axial yarn R to be arranged is provided, and after a synthetic resin layer is provided on the outer peripheral surface of the mandrel 1, a plurality of axial yarns R are provided on the outer peripheral surface of the synthetic resin layer. Are arranged in parallel, and the tubular woven fabric 4 is provided on the outer peripheral surface of the plurality of axial yarn R layers. The present invention relates to an apparatus for manufacturing a prepreg for FRP.
[0017]
In addition, a mandrel 1 that can move in the axial direction is inserted into a braider 2 having an inclined yarn supply unit 3, and the inclined yarn supply unit 3 is disposed on the outer peripheral surface of the mandrel 1 with respect to the axis of the mandrel 1. Thus, the oblique yarn S is supplied at a predetermined angle ± θ, and the tubular fabric 4 is woven on the outer peripheral surface of the mandrel 1 by the supply of the plurality of oblique yarns S from the oblique yarn supply unit 3. The FRP prepreg is manufactured by cutting the tubular fabric 4 in the axial direction of the mandrel 1 to produce the long oblique yarn fiber fabric 5 in which the plurality of oblique yarns S are arranged. A drive unit 27 for moving the mandrel 1 in a predetermined direction is provided. As the mandrel 1, the mandrel 1 is moved in the axial direction by the drive unit 27, and then the foremost divided mandrel 1a is removed. The removed split mandrel 1a is the last The present invention relates to an apparatus for producing a fiber fabric for FRP, wherein a mandrel 1 having a structure in which a plurality of divided mandrels 1a configured to be joined to the rear portion of the divided mandrel 1a is joined is employed. Is.
[0018]
Further, in the apparatus for manufacturing a fiber fabric for FRP according to claim 6, a tubular fabric 4 woven by the brader 2 is disposed in the vicinity of the mandrel 1 and on the front side of the brader 2 in the axial direction of the mandrel 1. The present invention relates to an apparatus for manufacturing a fiber fabric for FRP, which is provided with a cutting portion 38 that is cut open.
[0019]
Further, in the apparatus for manufacturing a fiber fabric for FRP according to claim 7, an oblique direction manufactured by cutting the tubular fabric 4 by the cutting portion 38 on the front side of the cutting portion 38 in the vicinity of the mandrel 1. The present invention relates to an apparatus for manufacturing a fiber fabric for FRP, wherein a winding section 40 for winding the yarn fiber fabric 5 into a roll shape is provided.
[0020]
[Action and effect of the invention]
When the tubular fabric 4 is formed on the outer peripheral surface of the mandrel 1 by the mandrel 1 and the braider 2 (sometimes called a braid machine), the oblique yarn S supplied from the oblique yarn supply unit 3 of the brader 2 is used. Is obtained in a slanted manner with a predetermined angle ± θ.
[0021]
When the tubular fabric 4 is cut and opened in the axial direction of the mandrel 1, the oblique yarn fiber fabric 5 in which the oblique yarn S is disposed obliquely is obtained.
[0022]
Although the length of the oblique yarn fiber fabric 5 is limited by the length of the mandrel 1, in theory, the infinitely long mandrel 1 can be used to form an infinitely long tubular fabric 4, so that it is very long. Even the oblique yarn fiber fabric 5 can be manufactured.
[0023]
The width of the oblique yarn fiber woven fabric 5 is limited by the diameter of the mandrel 1 and the size of the brader 2. However, since this can theoretically be infinite, It can be manufactured.
[0024]
Further, a synthetic resin layer in an uncured state or a semi-cured state is formed on the mandrel 1 by the synthetic resin coating portion 19 provided on the rear side of the braider 2, and the tubular woven fabric 4 is provided on the synthetic resin layer. The tubular woven fabric 4 adheres to and is integrated with the synthetic resin layer, and the tubular prepreg 29 can be easily formed by the semi-curing action of the semi-cured portion 37.
[0025]
Further, the mandrel 1 has a configuration in which a plurality of divided mandrels 1a are joined, and the foremost divided mandrel 1a is sequentially joined to the rear part of the rearmost divided mandrel 1a, so that even in a space-saving manner, The oblique yarn fiber fabric 5 having an infinite length can be manufactured.
[0026]
Since the present invention is as described above, it is a technique excellent in practicality and productivity that can easily obtain long slanted yarn fiber fabrics and the like used for very large FRP products.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
3 to 5 show a first embodiment of the present invention, and FIGS. 6 and 7 show a second embodiment of the present invention, which will be described below.
[0028]
Reference numeral 1 denotes a mandrel 1 that can move in the axial direction.
[0029]
The mandrel 1 has a structure in which a plurality of divided mandrels 1a divided in the front-rear direction are joined, and after moving in the axial direction, the foremost divided mandrel 1a is separated, and the divided mandrel 1a is moved to the end. A configuration is adopted in which the rear divided mandrels 1a are joined together.
[0030]
Reference numeral 2 denotes a braider 2, which is fitted on the mandrel 1.
[0031]
As this braider 2, a known so-called round-blade blader 2 is adopted (this brader 2 is provided with a plurality of bobbins on a substrate, and half of the bobbins are rotated to the right by repeating meandering motion. And the other half turns to the left by repeating meandering motion.) The braider 2 is provided with an oblique yarn supply portion 3 for supplying an oblique yarn S at a predetermined angle ± 45 ° with respect to the axial center of the mandrel 1 on the outer peripheral surface of the mandrel 1. A plurality of oblique yarns S are supplied from the oblique yarn supply section 3 onto the outer peripheral surface of the mandrel 1 that moves to the outer surface of the mandrel 1, and the tubular fabric 4 is woven on the outer peripheral surface of the mandrel 1. (Refer to FIG. 4. Note that, in the first embodiment, the bobbin is set in the oblique yarn supply unit 3 as it is.)
[0032]
Reference numeral 19 denotes a first resin obtained by spirally feeding and winding a first resin tape 20 having a release resin 24 coated with an uncured synthetic resin (such as an epoxy resin or a polyester resin) on the outer peripheral surface of the mandrel 1. It is the 1st resin tape supply part 19 (synthetic resin application part 19 said in Claim 1) which forms a layer. The first resin tape 20 is supplied with the release paper 24 in contact with the outer peripheral surface of the mandrel 1, and the tubular fabric 4 is woven on the first resin layer formed by the first resin tape 20. I'm damned.
[0033]
Reference numeral 21 designates a second resin tape 22 in which an uncured synthetic resin (such as an epoxy resin or a polyester resin) is applied to the release paper 24 in a spiral manner on the tubular fabric 4 on the outer peripheral surface of the mandrel 1. The second resin tape supply unit 21 is wound to form a second resin layer. The second resin tape 22 is supplied in a state in which the synthetic resin side is in contact with the tubular fabric 4. The tubular fabric 4 includes a first resin layer formed by the first resin tape 20 and a second resin tape. And sandwiched between the second resin layers formed by 22.
[0034]
Reference numeral 37 denotes a semi-cured portion 37 that pressurizes and semi-cures the first resin layer and the second resin layer provided on the outer peripheral surface of the mandrel 1. By passing through the semi-cured portion 37, the tubular woven fabric 4 becomes a tubular prepreg 29 to which a synthetic resin is applied and impregnated.
[0035]
Reference numeral 38 denotes a cutting portion 38 that cuts the cylindrical prepreg 29 in the axial direction by a cutting tool 30 such as a cutter and cuts the cylindrical prepreg 29 into a sheet shape. The cylindrical prepreg 29 passes through the cutting portion 38 to become a prepreg 39 of the oblique yarn fiber fabric 5 coated with and impregnated with synthetic resin (see FIG. 5; the resin is omitted). Yes.)
[0036]
Reference numeral 40 denotes a winding unit 40 that winds the prepreg 39 of the oblique yarn fiber fabric 5 from the outer peripheral surface of the mandrel 1 in a roller shape. Further, the release paper 24 of the first resin tape 20 is configured to remain on the outer peripheral surface of the mandrel 1 when the prepreg 39 of the oblique yarn fiber fabric 5 is wound up.
[0037]
Reference numeral 23 denotes a release paper removing unit 23 for removing the release paper 24 of the first resin tape 20 remaining on the outer peripheral surface of the mandrel 1.
[0038]
Reference numeral 25 denotes a support fixing portion 25 that supports the mandrel 1 and is fixed to the mandrel 1 at the tip (the tip of the foremost split mandrel 1a). The movement of the mandrel 1 in the axial direction is achieved by pulling or pushing of the support fixing portion 25.
[0039]
Reference numeral 26 denotes a support portion 26 that supports the mandrel 1. The support portions 26 are provided at arbitrary intervals in order to support the divided mandrel 1a at two or more support points at all times. The support portion 26 is not fixed to the mandrel 1.
[0040]
Reference numeral 27 denotes a drive unit 27 that is connected to the support fixing unit 25 and moves or moves the mandrel 1 in the axial direction by pulling or pushing the support fixing unit 25.
[0041]
Reference numeral 28 denotes a guide rail 28 that guides the movement of the support fixing portion 25.
According to this weaving apparatus, the mandrel 1 is moved in the axial direction by the drive unit 27, and the first resin tape 20 is supplied from the first resin tape supply unit 19 onto the outer peripheral surface of the mandrel 1. One resin layer is provided, and the oblique fabric S supplied from the oblique yarn supply unit 3 of the braider 2 is supplied onto the first resin layer to weave the tubular fabric 4, and the second fabric is formed on the tubular fabric 4. By supplying the resin tape supply unit 21 and providing the second resin layer, a cylindrical prepreg 29 is manufactured on the outer peripheral surface of the mandrel 1.
[0042]
Subsequently, the cylindrical prepreg 29 is cut in the axial direction by a cutting tool 30 such as a cutter, and the cylindrical prepreg 29 is opened in a sheet shape, so that the long and thread is inclined at an angle of 45 °. The prepreg 29 of the arranged oblique yarn fiber fabric 5 is produced (in the case where the first resin layer and the second resin layer are not provided, the oblique yarn fiber fabric 5 is woven). Will be.)
[0043]
The prepreg 29 of the oblique yarn fiber fabric 5 is formed into a polymerized prepreg by alternately laminating and polymerizing a prepreg obtained by applying and impregnating a synthetic resin to the warp and weft fiber fabric 9 formed according to a conventional method.
[0044]
In the first embodiment, the oblique yarn fiber fabric 5 is formed by cutting the tubular fabric 4 formed by the mandrel 1 and the brader 2 as described above. Therefore, the length and width of the oblique yarn fiber fabric 5 are as follows. Is determined by the length and thickness of the cylindrical fabric 4, and an oblique yarn fiber fabric 5 having an arbitrary length and width is formed, and even a very long tubular fabric 4 can be formed. Therefore, it becomes an FRP fiber woven fabric manufacturing apparatus excellent in practicality that can be easily formed even with an extremely long oblique yarn fiber woven fabric 5.
[0045]
Moreover, after forming the cylindrical fabric 4 on the outer peripheral surface of the mandrel 1, a configuration is adopted in which the cylindrical fabric 4 is immediately cut open to form the oblique yarn fiber fabric 5, and the oblique yarn fiber fabric 5 is wound into a roll shape. Further, a divided mandrel 1a divided in the front-rear direction is adopted as the mandrel 1, the front divided mandrel 1a is removed, and the removed divided mandrel 1a is sequentially joined to the rear of the last divided mandrel 1a. Since the length of the mandrel 1 is practically infinite, a very long tubular woven fabric 4 can be formed even if the entire length of the mandrel 1 is short. Even a long diagonal fiber fabric 5 can be formed continuously. Further, the formed long oblique yarn fiber fabric 5 (or the prepreg 29 of the oblique yarn fiber fabric 5) has a high commercial value that can be used after being cut into an arbitrary length by the user.
[0046]
In addition, since the first resin layer is provided on the outer peripheral surface of the mandrel 1 and the tubular fabric 4 is formed on the first resin layer, the tubular fabric is formed in the process of forming the tubular fabric 4. A prepreg in which the woven fabric 4 and the first resin layer are integrated can be formed, and inevitably, a prepreg 29 in which a synthetic resin is applied and impregnated on the oblique yarn fiber woven fabric 5 by opening the prepreg is provided. Will be obtained.
[0047]
In addition, a configuration in which a first resin layer is provided on the mandrel 1 using a first resin tape 20 in which a synthetic resin is applied to the release paper 24 is used, and the release paper 24 of the first resin tape 20 is used. Since the side is configured to contact the mandrel 1, the first resin tape 20 is spirally wound around the mandrel 1 to easily and uniformly provide the first resin layer on the mandrel 1. In addition, the resin does not adhere directly to the mandrel 1 due to the presence of the release paper 24, and the prepreg can be peeled well from the mandrel 1. Further, when the split mandrel 1a is used, the prepreg The tubular woven fabric 4 is formed by moving the mandrel 1 in the axial direction while joining the divided prepreg 1a after being peeled off as it is behind the rearmost divided mandrel 1a.
[0048]
Moreover, since the 2nd resin layer is provided on the cylindrical fabric 4 formed on the mandrel 1, the structure which peels this cylindrical fabric 4 and the 2nd resin layer from this mandrel 1 is employ | adopted. The tubular fabric 4 is sandwiched between the first resin layer provided on the mandrel 1 and the second resin layer provided on the tubular fabric 4, and the tubular fabric 4 is necessarily cut open. The oblique yarn fiber woven fabric 5 obtained in this way becomes a prepreg 29 having a resin layer provided on the front surface side and the back surface side, and the prepreg 29 of the oblique yarn fiber fabric 5 of uniform quality without resin unevenness is obtained. Become.
[0049]
Moreover, since the method of providing the second resin layer on the cylindrical fabric 4 is also a method using a resin tape (second resin tape 22) in which a synthetic resin is applied to release paper, the second resin tape 22 is formed into a cylindrical shape. The second resin layer can be easily and uniformly provided on the mandrel 1 by being spirally wound around the woven fabric 4, and the prepreg of the oblique yarn fiber woven fabric 5 having a more uniform quality with no resin unevenness. Will be obtained.
[0050]
Also, the oblique yarn is left with the release paper 24 of the first resin tape 20 left on the mandrel 1 and the release paper of the second resin tape 22 is left on the prepreg 29 of the oblique yarn fiber fabric 5. Since the prepreg of the fiber fabric 5 is peeled off from the mandrel 1 and wound up, there is a release paper on one side of the wound prepreg 29, and the prepregs 29 that are adjacently polymerized even if wound up in a roll form are attached. I will not do it. Also, if the release paper of the second resin tape 22 is peeled off from the prepreg and the release paper 24 of the first resin tape 20 is left on the prepreg 29, the release paper of the second resin tape 22 must be peeled off. However, in this embodiment, the release paper of the second resin tape 22 remains on the prepreg, and at the same time as the operation of peeling the prepreg 29 from the mandrel 1, the prepreg 29 cannot be wound up. The release paper 24 of one resin tape 20 can be peeled off, and thus the entire apparatus can be shortened.
[0051]
In addition, after forming the cylindrical fabric 4 to which the synthetic resin is not applied and cutting the cylindrical fabric 4 into the oblique yarn fiber fabric 5, the resin is applied to and impregnated into the oblique yarn fiber fabric 5. In the method of manufacturing the prepreg as well, a very long prepreg of the oblique yarn fiber fabric 5 can be formed.
[0052]
In the second embodiment, in the first embodiment, an axis for supplying an axial thread R arranged in the axial direction of the mandrel 1 between the brader 2 and the synthetic resin coating portion 19 in the vicinity of the mandrel 1. The directional yarn supply unit 6 is provided, and after the synthetic resin layer is provided on the outer peripheral surface of the mandrel 1, a plurality of axial yarns R are provided in parallel on the outer peripheral surface of the synthetic resin layer. The tubular fabric 4 is provided on the outer peripheral surface of the directional yarn R layer.
[0053]
Also, in the second embodiment, as in the first embodiment, after providing the first resin layer on the mandrel 1 with the first resin tape 20, the polymer tubular fabric 7 is formed on the first resin layer, A second resin layer is provided on the polymer tubular fabric 7 by the second resin tape 22, and then the polymer tubular fabric 7 is cut open in the axial direction by a cutting tool 30 such as a cutter, and an oblique yarn with an axial yarn. A prepreg of the fiber fabric 8 is then wound up in a roll shape.
[0054]
Therefore, according to this second embodiment, a polymerized tubular fabric 7 in which the axial yarn R and the tubular fabric 4 are polymerized is formed, and the polymerized tubular fabric 7 is cut in the axial direction of the mandrel 1. And the plurality of oblique yarns S are arranged in the oblique direction and the axial direction yarn R is arranged in the longitudinal direction. A prepreg of the fabric 8 is manufactured.
[0055]
As in the first embodiment, the length and width of the oblique yarn fiber fabric 8 with axial direction yarn are determined by the length and thickness of the polymer tubular fabric 7, and the axial direction yarn with arbitrary length and width is attached. The oblique yarn fiber fabric 8 can be formed. Moreover, since the polymer tubular fabric 7 can be formed even with a very long length, it can be easily formed even with a very long oblique yarn fabric 5 or the like.
[0056]
Further, as long as the axial yarn R is present, the oblique yarn fiber woven fabric 8 with the axial yarn has a high strength in the longitudinal direction.
[0057]
Moreover, after providing the axial thread | yarn R on the mandrel 1, this axial thread | yarn R will be pressed down with the cylindrical fabric 4, and this axial thread | yarn R will be fixed favorably. In the case where the axial yarn supply portion is provided in front of the brader 2 and the tubular fabric 4 is formed on the mandrel 1, the axial resin R is disposed on the tubular fabric 4 when the second resin tape is provided. The axial thread R is fixed by 22.
[0058]
As described above, according to the first embodiment and the second embodiment, it is excellent in practicality and productivity that can easily obtain a long slanted yarn fiber fabric used for an extremely long FRP product. Technology.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a polymerized fiber 10 obtained by alternately polymerizing oblique yarn fiber fabrics 5 and warp and weft fiber fabrics 9;
FIG. 2 is an explanatory plan view showing a method of manufacturing a conventional oblique yarn fiber fabric 5;
FIG. 3 is an explanatory view of an apparatus for producing a prepreg 29 of the oblique yarn fiber fabric 5 of the first embodiment.
FIG. 4 is an explanatory perspective view of the braider 2 of the first embodiment.
FIG. 5 is an explanatory perspective view showing a process of manufacturing a prepreg 29 of the oblique yarn fiber fabric 5 from the prepreg of the tubular fabric 4 of the first embodiment.
FIG. 6 is an explanatory perspective view of a braider 2 of a second embodiment.
FIG. 7 is an explanatory view of a diagonal yarn fiber fabric 8 with an axial yarn obtained by the second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS S Oblique thread R Axial thread 1 Mandrel 1a Divided mandrel 2 Brader 3 Oblique thread supply part 4 Cylindrical fabric 5 Oblique thread fiber woven fabric 6 Axial thread supply part 7 Polymerized cylindrical woven fabric 8 Oblique thread with axial direction thread Textile fabric
19 Synthetic resin application part
20 Resin tape
21 Second synthetic resin application part
22 Second resin tape
24 Release paper
27 Drive unit
29 prepreg
37 Semi-cured part
38 Cutting part
39 prepreg
40 Winding part

Claims (8)

A mandrel that is movable in the axial direction is inserted into a blader having an inclined yarn supply unit, and the inclined yarn supply unit is inclined at a predetermined angle ± θ with respect to the axis of the mandrel on the outer peripheral surface of the mandrel. A yarn S is supplied, and a cylindrical fabric is woven on the outer peripheral surface of the mandrel by supplying a plurality of diagonal yarns S from the oblique yarn supply unit. Is applied to and impregnated to form a cylindrical prepreg, and the cylindrical prepreg is cut in the axial direction of the mandrel so that the plurality of diagonal yarns S are disposed. An apparatus for manufacturing a prepreg for FRP that manufactures a prepreg, in which a synthetic resin layer in an uncured or semi-cured state is provided on the outer peripheral surface of the mandrel in the vicinity of the mandrel and on the rear side of the brader The application part is provided and the man The front side of the braider in the vicinity of Dorell, the semi-curing section for the synthetic resin layer allowed semi-cured allowed to integrate the tubular fabric is provided, et al are also, the driving unit is provided for moving the mandrel in a predetermined direction The mandrel is configured to move the mandrel in the axial direction by the drive unit, remove the foremost divided mandrel, and join the removed divided mandrel to the rear of the last divided mandrel. An apparatus for producing a prepreg for FRP, wherein a mandrel having a structure in which divided mandrels are joined is employed .   2. The apparatus for producing a prepreg for FRP according to claim 1, wherein the synthetic resin coating section is provided with a resin tape having a non-cured or semi-cured synthetic resin coated on a release paper, and the release paper side of the resin tape is a mandrel. A synthetic resin layer is formed on the outer peripheral surface of the mandrel by spirally supplying and winding the resin tape on the outer peripheral surface of the mandrel so as to be in contact with the FRP. Prepreg manufacturing equipment.   The prepreg manufacturing apparatus for FRP according to any one of claims 1 and 2, wherein a tubular woven fabric provided on the outer peripheral surface of the mandrel between the brader and the semi-cured portion in the vicinity of the mandrel. A second synthetic resin application part for providing an uncured or semi-cured second synthetic resin layer on the outer peripheral surface is provided, and the synthetic resin layer, the tubular fabric, and the second synthetic resin layer on the outer peripheral surface of the mandrel are provided. An apparatus for producing a prepreg for FRP, wherein the apparatus is configured to be integrated at a semi-cured portion.   4. The FRP prepreg manufacturing apparatus according to claim 3, wherein the second synthetic resin coating unit is provided with a second resin tape in which an uncured or semi-cured synthetic resin is coated on a release paper, and the second resin A synthetic resin layer is formed on the outer peripheral surface of the mandrel by spirally supplying and winding the resin tape around the outer peripheral surface of the mandrel so that the synthetic resin side of the tape is in contact with the tubular fabric. An apparatus for manufacturing a prepreg for FRP. The prepreg manufacturing apparatus for FRP according to any one of claims 1 to 4, wherein an axial yarn disposed in the axial direction of the mandrel between the brader and the synthetic resin coating portion in the vicinity of the mandrel. An axial yarn supplying section for supplying R is provided, and after providing a synthetic resin layer on the outer peripheral surface of the mandrel, a plurality of axial yarns R are provided in parallel on the outer peripheral surface of the synthetic resin layer, An apparatus for producing a prepreg for FRP, characterized in that a tubular woven fabric is provided on the outer peripheral surfaces of a plurality of axial yarn R layers.   A mandrel that is movable in the axial direction is inserted into a blader having an inclined yarn supply unit, and the inclined yarn supply unit is inclined at a predetermined angle ± θ with respect to the axis of the mandrel on the outer peripheral surface of the mandrel. A yarn S is supplied, and a cylindrical fabric is woven on the outer peripheral surface of the mandrel by supplying a plurality of diagonal yarns S from the oblique yarn supply unit. An apparatus for manufacturing a prepreg for FRP, which manufactures a long oblique yarn fiber fabric in which the plurality of oblique yarns S are arranged by cutting in an axial direction, and driving the mandrel in a predetermined direction A part is provided, and the mandrel is moved in the axial direction by the drive unit as the mandrel, and then the foremost divided mandrel is removed and the removed divided mandrel is joined to the rear part of the last divided mandrel. An apparatus for producing a fiber fabric for FRP, wherein a mandrel having a structure in which a plurality of divided mandrels is joined is employed. 7. The apparatus for manufacturing a fiber fabric for FRP according to claim 6 , wherein a cutting portion for cutting a tubular fabric woven by the brader in the axial direction of the mandrel is provided in the vicinity of the mandrel and on the front side of the brader. An apparatus for producing a textile fabric for FRP, characterized in that 8. The apparatus for manufacturing a fiber fabric for FRP according to claim 7 , wherein an oblique yarn fiber fabric manufactured by cutting a tubular fabric by the cutting portion in the vicinity of the mandrel and in front of the cutting portion is rolled. An apparatus for producing a fiber woven fabric for FRP, wherein a winding section for winding is provided.

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