JP3003699B1 - Method and apparatus for producing sheet-like reinforcing material - Google Patents

Abstract

An object of the present invention is to provide a method for stably producing a sheet-like reinforcing material for wood reinforcement in which a phenol resin is impregnated into carbon fiber and phenol resin-impregnated papers are respectively bonded to upper and lower surfaces thereof. And A main agent and a curing agent of a phenol resin are separately filled in tanks 51 and 52, respectively, and mixed and stirred by a mixing and stirring device 55 immediately before discharging them.
Injection is performed between the carbon fiber sheet 12 and the phenolic resin-impregnated paper 11 from the discharge port 62 of the nozzle 26 immediately before the pressure roller 27. Then, heating and pressurization are performed intermittently in the primary curing device 31 on the downstream side of the pressure roller 27, and the phenol resin impregnated in the carbon fiber is cured almost completely in the secondary curing furnace 35. .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a sheet-like reinforcing material, and more particularly to a method and apparatus for intermittently continuously manufacturing a sheet-like reinforcing material suitable for reinforcing wood. About.

[0002]

2. Description of the Related Art A conventional sheet-like reinforcing material for reinforcing wood is disclosed, for example, in Japanese Patent Publication No. Hei 8-508320. This reinforcing material is formed by impregnating an epoxy resin into a strand formed by arranging aramid fibers in a sheet shape and forming the sheet into a sheet shape. Such a reinforcing material is bonded to the surface of wood to reinforce it.

[0003] Such a reinforcing material is such that, for example, an aramid fiber strand is passed through a bath filled with an epoxy resin in advance, thereby impregnating the aramid fiber with the epoxy resin.

Another method of manufacturing a reinforcing material is disclosed in, for example,
-104559. This method
Fill the cavity of the formwork with a reinforcing material such as carbon fiber in advance,
In this method, a reinforcing material having a predetermined shape is manufactured by a reaction injection molding method in which a resin is injected later and reacted.

[0005] As another manufacturing method, there is a method disclosed in Japanese Patent Application No. 10-227942 filed by the present inventors. In this method, a reinforcing fiber, a matrix resin, and a joining sheet that are continuously supplied are pressed by a roller while being heated by a roller, thereby continuously producing a reinforcing material.

[0006]

[Problems to be Solved by the Invention] JP-T 8-50832
The method described in Japanese Patent Application Publication No. 0-205, in which a reinforcing fiber strand is immersed in a resin bath to adhere and impregnate a matrix resin cannot be applied to a room temperature-curable resin. This is because if a large amount of this resin is pooled and immersed in a resin bath, the resin hardens with time, so that the quality of the reinforcing material in the longitudinal direction changes sequentially. Therefore, such a method is difficult to use for continuously producing a long reinforcing material, even though the method can be operated temporarily.

A method for producing a composite material by a reaction injection molding method, as disclosed in Japanese Patent Application Laid-Open No. 5-104559, discloses a method in which a reactive resin is later introduced into a cavity of a mold previously filled with reinforcing fibers. Since injection molding is used, it is possible to produce a single molded article or a plurality of molded articles having a complicated shape, but it is not possible to continuously produce a long molded article.

The method according to Japanese Patent Application No. 10-227942 relates to a method for continuously and stably producing a long sheet-like reinforcing material. Since a conveyor is used, the pressure applied to the joined body is not always sufficient, and there is a problem that there is a limit to integral molding with a strong pressure.

The present invention has been made in view of such a problem, and it is possible to continuously and stably produce a sheet-like reinforcing material suitable for reinforcing wood, for example. An object of the present invention is to provide a method and an apparatus for manufacturing a sheet-like reinforcing material.

[0010]

According to one aspect of the present invention, there is provided a method for manufacturing a sheet-like reinforcing material comprising a bonding sheet adhered to at least one surface of a fiber-reinforced resin sheet. The reinforcing fiber sheet and the joining sheet in which the fiber strands are arranged in a sheet shape are intermittently supplied in conjunction with the operation of the pressing means, and the reinforcing fiber sheet and the joining sheet are provided in front of the pressing means. And an uncured matrix resin is injected between the sheet and the reinforcing fiber sheet, the matrix resin and the joining sheet are intermittently pressed by the pressing means to be integrated. The present invention relates to a method for manufacturing a material.

Here, the reinforcing fibers are preferably carbon fibers. The matrix resin may be a phenolic resin, and the joining sheet may be a phenolic resin-impregnated paper. Further, the bonding sheet may be bonded to both sides of the reinforcing fiber sheet, and the matrix resin may be injected between the reinforcing fiber sheet and the bonding sheet on both surfaces of the reinforcing fiber sheet. It is particularly preferable that the reinforcing fiber sheet, the matrix resin, and the joining sheet are hot-pressed by the face plate after pressing by the pressing means. The intermittent supply of the reinforcing fiber sheet and the joining sheet and the intermittent integration of the reinforcing fiber sheet, the matrix resin, and the joining sheet may be alternately performed. Further, a method for producing a sheet-like reinforcing material used for reinforcing wood may be used.

Such a production method is applied to the production of a reinforcing material in which a bonding sheet in which a thermosetting resin in a semi-cured state is impregnated on the surface of an almost completely cured fiber-reinforced resin layer is combined and integrated. It is suitable.

[0013] Next, the invention according to the manufacturing apparatus is characterized in that a reinforcing fiber sheet supply means in which reinforcing fiber strands are arranged in a sheet form, a bonding sheet supply means, and a reinforcing fiber sheet and the bonding sheet are provided between the reinforcing fiber sheet and the bonding sheet. Injecting means for injecting the matrix resin, provided on the downstream side of the injecting means, a laminating means for laminating the reinforcing fiber sheet, the matrix resin, and the bonding sheet, and provided on the downstream side of the laminating means. Integrated means for pressurizing and integrating the reinforcing fiber sheet, the matrix resin, and the bonding sheet, and control means for intermittently and alternately operating the supply means and the integrating means, The present invention relates to an apparatus for manufacturing a sheet-like reinforcing material comprising:

Here, the integrating means may be an apparatus for intermittently performing hot pressing. Further, a curing furnace may be provided downstream of the integrating means, and the matrix resin may be almost completely cured in the curing furnace.

As the matrix resin of the fiber-reinforced resin sheet of such a sheet-like reinforcing material, resins such as vinyl urethane resin, vinyl ester resin and epoxy resin can be used in addition to the above-mentioned phenol resin. It is preferable that the matrix resin be quick-curing at a low temperature as compared with the resin impregnated in the bonding sheet. Further, as the reinforcing fiber, besides the above-mentioned carbon fiber, glass fiber and aramid fiber can be used. Further, as the joining sheet to be bonded to the surface of the fiber reinforced resin sheet, impregnated paper impregnated with a matrix resin may be used, and various resin impregnated papers such as phenol resin impregnated paper are preferable.

The main component of the matrix resin and the curing agent are filled in separate tanks, and the main component and the curing agent are mixed just before the nozzle for injecting the matrix resin between the reinforcing fiber sheet and the joining sheet. May be. It is particularly preferable that the main agent and the curing agent are mixed by a mixing and stirring device connected to the nozzle, and the mixing and stirring device is cooled by cooling means.

A preferred embodiment of the present invention relates to a method for producing a sheet-like reinforcing material comprising a carbon fiber-reinforced resin composite material, and in particular, a main agent and a hardening agent of a matrix resin used for a fiber-reinforced resin layer are separately provided. , And these are fed by a pump and sent to a mixing and stirring device having a cooling device. In this mixing and stirring device, a uniform mixed resin is obtained. The mixed resin is injected by a discharge device between a carbon fiber sheet in which carbon fiber strands are arranged in a sheet shape and a phenol resin impregnated paper. The injection of the resin is performed intermittently in accordance with the cycle of the intermittent operation under the control of the control means described later.

When the mixed resin, the carbon fiber sheet and the phenolic resin-impregnated paper that have been injected pass between the bonding means consisting of one or a plurality of sets of opposing impregnating rollers, the matrix resin is incorporated into the reinforcing fibers. While being impregnated, the matrix resin becomes an uncured sheet-like reinforcing material in which the reinforcing fiber sheet and the phenol resin-impregnated paper are bonded.

The uncured sheet-like reinforcing material thus obtained is intermittently and sequentially supplied to the hot press device by a fixed amount in the length direction. Then, the resin is further impregnated by intermittently applying pressure and heating in such a heat press device to form a cured carbon fiber sheet. Such a cured carbon fiber sheet is then introduced into a curing furnace to form a sheet-like carbon fiber reinforced composite comprising a fiber reinforced resin layer in which only the matrix resin is almost completely cured and a phenol resin impregnated paper in a semi-cured state. . Such a continuous sheet-like composite is intermittently taken off by a constant amount by a drawing machine according to a control means described later, and then wound up by a winding device, or cut into an appropriate length by a cutting machine. Become so.

In the hot pressing step using the above-described hot pressing apparatus, which is a major feature of the present invention, the uncured sheet-shaped reinforcing material is hot-pressed intermittently and sequentially in fixed amounts. At this time, the uncured sheet is intermittently hot-pressed a plurality of times.
Here, a plurality of times means two or more times, and the number of times of pressing is not particularly limited.

The cycle of the intermittent operation at the time of hot pressing differs depending on the matrix resin. The pressing time is set so that the matrix resin gels after the first press and solidifies in the second and subsequent presses. And temperature are preferably controlled. During such hot pressing, the uncured reinforcing material is intermittently and continuously supplied by a constant amount in accordance with the cycle of the intermittent operation of the press. After the pressing, the curing is preferably advanced to such an extent that the sheet-like form can be maintained.

In the manufacturing method and the manufacturing apparatus for performing the above-described series of steps, the carbon fiber sheet, the phenol resin-impregnated paper, and the matrix resin are intermittently and sequentially supplied in accordance with the intermittent operation of the hot press. To be able to do so, each step is controlled by the control means so as to work in conjunction with the hot press operation.

According to the above aspect of the invention, the impregnating property of the reinforcing fiber with the resin and the degree of curing can be easily adjusted by the pressurizing and heating device. In addition to using a hot press device, the heat press device can intermittently repeat heating and pressurization, thereby applying a stronger pressure, thereby making it possible to produce a reinforcing material with less defects. Become.

Further, in such a manufacturing method and a manufacturing apparatus, in particular, a mixed resin of a base resin of a matrix resin impregnated into reinforcing fibers and a curing agent is injected between a carbon fiber sheet and a phenol resin impregnated paper. This enables injection without using a resin bath for immersion.
For this reason, the curing of the matrix resin in the resin bath can be prevented, and the continuous production of a sheet-like reinforcing material using a room-temperature-curable resin becomes possible.

According to this aspect of the invention, it is possible to continuously and stably produce a sheet-like reinforcing material made of a carbon fiber reinforced resin composite material for reinforcing wood.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a sheet-like reinforcing material for reinforcing wood will be described below.

FIGS. 1 to 3 show the structure of a sheet-like reinforcing material according to an embodiment of the present invention. The sheet-like reinforcing material comprises a fiber-reinforced resin sheet 10 and a phenol resin in a semi-cured state. And a joining sheet 11 made of impregnated paper. The fiber-reinforced resin sheet 10 has a structure in which phenol resin impregnated paper 11 is joined to both surfaces. Here, the reinforcing material of the resin sheet 10 is composed of carbon fibers 9, and the carbon fibers 9 are arranged in the length direction of the reinforcing material.

As shown in FIGS. 4 and 5, the sheet-like reinforcing material 16 is formed on the upper and lower surfaces of a laminated material obtained by bonding, for example, three pieces of wood 17 with an adhesive while applying pressure. Are bonded by an adhesive when manufacturing a laminated wood. Thereby, the wood 17 is reinforced.

FIG. 6 shows an outline of the whole manufacturing process of such a sheet-like reinforcing material 16, and this apparatus is provided with a reinforcing fiber supply section 20 at the most upstream side thereof.
A plurality of packages 22 are attached to the creel 21 of the supply unit 20. Reinforcing fibers 9 are fed from these packages 22, and are aligned by guide rollers 23. A sheet 12 composed of nine strands is supplied.

A bonding section 25 is provided downstream of the supply section 20. In the bonding section 25, the phenol resin impregnated paper 11 is supplied from upper and lower rollers, and such phenol resin impregnated paper 11 is superposed on the upper and lower surfaces of the sheet 12 of the carbon fiber 9, respectively. In such a state, the pressure roller 27
It is being introduced in between. In particular, the bonding portion 25 is provided with nozzles 26 on the upper and lower sides. In this nozzle 26, a mixed resin obtained by mixing a matrix resin base material and a curing agent is mixed with the carbon fiber sheet 9 and the phenol resin impregnated paper 11. It is to be injected between.

As shown in FIG. 7, the nozzle 26 has a plurality of discharge ports 62 arranged in a line at the tip end thereof, and the matrix resin 63 is extruded from such discharge ports 62, respectively. Therefore, such a resin is supplied on the carbon fiber strand 12 as shown in FIG. The discharge port 62 on the tip end side of the nozzle 26 may be formed in a slit shape as shown in FIG. 9 so that the matrix resin 63 is supplied to the upper and lower surfaces of the carbon fiber sheet 12 in a sheet shape.

FIG. 10 shows an apparatus for supplying a matrix resin 63 according to another embodiment. That is, here, the nozzle 26 having an arm shape is used.
One or a plurality of discharge ports provided on the tip side of the nozzle 6 are moved left and right by the swinging operation of the nozzle 26, whereby the matrix resin 63 is supplied onto the reinforcing fiber sheet 12 in a zigzag manner. Like that.

FIG. 11 shows that auxiliary rollers 59 and 60 are further disposed upstream of the pressure roller 27 on the downstream side of the nozzle 26, and these three pairs of rollers 59 and 6 are provided.
The carbon fiber sheet 12, the phenol resin-impregnated paper 11, and the matrix resin 63 may be sequentially pressed by 0 and 27. At this time, these rollers 5
Heating means may be provided in one or more of the sets 9, 60, 27 so that pressure is applied together with heating.

FIG. 12 shows an apparatus for mixing the matrix resin discharged from the nozzle 26. In this case, a room temperature curing phenol resin is mixed with the matrix resin 6.
3 is used. The main component of the matrix resin 63 is filled in the main component tank 51, and the curing agent is filled in the curing agent tank 52. The main agent 51 and the curing agent 52 are pumped by pumps 53 and 54, respectively,
The mixture is supplied to the mixing and stirring device 55. This mixing and stirring device 55
Is mixed and stirred to produce a mixed resin.
Then, such a mixed resin is supplied to the nozzle 26 and is discharged from the discharge port 62 thereof. Here, particularly, a mixture of the main agent 51 and the curing agent 52 is easily cured with time, so that the mixing and stirring device 55 and the nozzle 26 are cooled by the cooling device 56.

Next, the configuration of the curing section 30 on the downstream side of the bonding section 25 shown in FIG. 6 will be described. This hardened part 30 is 1
A secondary curing device 31 is provided. The primary curing device 31 is a hot press device that presses the upper and lower two face plates 32 and 33. This device is a controller 3 having a timer 34.
6, and the face plates 32, 3
While the pressure is applied for a predetermined time, the drawing device 39 stops operating. At this time, the supply of the resin from the resin supply nozzle 26 is also stopped. Face plate 3 for hot press
When the pressurization of 2, 33 is released, the drawing device 39 operates, and the semi-cured sheet-like reinforcing material 16 is pressurized for a certain time,
When the pressure is released, the uncured sheet-like reinforcing material 16 moves downstream by a certain amount, and the supply of the resin from the resin nozzle 26 is also started. Then, the pressure is repeated again.

It is preferable that the pressurizing and releasing are repeated twice or more. That is, the time and temperature are adjusted so that the resin gels by the first pressurization and solidifies by the second and subsequent pressurizations. Thus, the primary curing device 31
In this case, the curing is advanced at least to such an extent that the sheet-like reinforcing material 16 can maintain its form. Therefore, the number of times of pressurization is not particularly limited, but is usually preferably about 5 to 10 times, and the degree of cure of the matrix resin of the sheet-like reinforcing material 16 is desirably 80% or more.

A curing furnace 35 constituting a secondary curing device is arranged downstream of the primary curing device 31 as described above.
Only the matrix resin is almost completely cured in the curing furnace 35, and the resin in the impregnated paper 11 is in an uncured state. That is, the curing of the matrix resin is performed by the curing device 31 and the curing furnace 35 described above. In order to increase the adhesive strength between the phenolic resin-impregnated paper 11 and the wood 17, the conditions of the above-described curing device 31 and curing oven 35 are set so that the resin in the phenolic resin-impregnated paper 11 is not completely cured.

Next, the winding section 3 on the downstream side of the hardening section 30
8, the winding unit 38 is provided with a pulling device 39 that pulls out the cured sheet-like reinforcing material 16 from the curing furnace 35.
A cutting device 40 for cutting the sheet-like reinforcing material to be drawn in front of the drawing device 39;
1, wherein the sheet-like reinforcing material 16 is wound up as necessary.

Next, the production of a sheet-like reinforcing material for wood reinforcement by the production apparatus shown in FIG. 6 will be described in the order of steps.

The main agent of the matrix resin 63 is filled in the tank 51 shown in FIG. 12, and the curing agent is filled in the tank 52. The main agent and the curing agent are pump 53, respectively.
The liquid is sent by the pump 54 and sent to a mixing / stirring device 55 provided in a cooling device 56. Here, the main agent and the curing agent are mixed with each other to obtain a uniform mixed resin.

Such a mixed resin is composed of a carbon fiber sheet 12 in which carbon fibers 9 supplied by a supply unit 20 shown in FIG. 6 are arranged in a sheet shape, and a phenol resin impregnated paper 11 supplied from upper and lower rolls. During this time, the liquid is discharged from the discharge port 62 by the nozzle 26. That is, the mixed resin discharged from the discharge port 62 by the nozzle 26 is continuously injected between the carbon fiber sheet 12 in which the carbon fibers 9 are arranged in a sheet shape and the phenol resin impregnated paper 11.

The injected resin liquid 62 is pre-impregnated into the carbon fiber sheet 12 using the upper and lower pressure rollers 27 whose roller spacing can be adjusted arbitrarily. At the same time, the phenol resin-impregnated paper 11 is adhered to the outer surface of the carbon fiber sheet 12 containing the resin solution via the pressure roller 27. That is, the pressure roller 27 constitutes a bonding means, and an uncured carbon fiber reinforced sheet-like reinforcing material integrated via the pressure roller 27 also serving as the impregnating roller is obtained.

The uncured sheet-like reinforcing material is heated together with the further impregnation of the resin in the primary curing device 31 of the heating and pressurizing device 30, thereby becoming a carbon fiber sheet-like reinforcing material. Next, the reinforcing material is introduced into a curing furnace 35, and the fiber-reinforced resin layers 10 and 60 to 75, which are almost 100% cured.
% Phenolic resin impregnated paper 11 cured to a semi-cured state
And a carbon fiber reinforced composite 16 comprising: Such a sheet-like reinforcing material 16 is taken out by a drawing machine 39,
It is wound by a winding device 41 and, if necessary, a cutting machine 4.
At 0, it is cut to an appropriate length.

A feature of the manufacturing method and the manufacturing apparatus is that a continuous sheet-like reinforcing material is manufactured while being intermittently fed in the length direction. Although the above-described manufacturing apparatus continuously manufactures the sheet-like reinforcing material, it actually performs the manufacturing by intermittently transporting the sheet-like reinforcing material, thereby continuously obtaining the continuous sheet-like reinforcing material. I am trying to be.

That is, the supply section 20 of the carbon fiber strand and the carbon fiber sheet 12, the supply of the resin and the bonding section 25, the curing section 30, and the winding section 38 of the phenolic resin-impregnated paper 11 are controlled by a controller 36, respectively. The secondary curing device 31 operates in conjunction with an intermittent operation cycle. While the curing device 31 is in operation, the supply device is stopped, and the primary curing device 31 is activated. The supply operation or the feed operation is performed when not performed. Such an operation is controlled based on a timing signal of a timer 34 connected to the controller 36.

Therefore, the intermittent heat press device 31
When the pressure is applied by the controller 4 and the controller 36, the drawing device 39 stops operating, and the supply of the resin from the resin supply nozzle 26 also stops. When the primary curing device 31 presses for a certain period of time by a signal from the controller 36 connected to the timer 34, the primary curing device 31 is opened after that, and at the same time, the drawing device 39 is operated to discharge a predetermined amount of sheet-like reinforcing material. Pull out. The carbon fiber sheet 12, the phenol resin-impregnated paper 11, and the matrix resin 63 are supplied in conjunction with this drawing operation. This opening time is also determined by the timer 34 and the controller 3
When the series of operations is completed, the controller 36 again puts the press device into a pressurized state.

In this way, the carbon fibers 9 and the sheet-like reinforcing material 16 are controlled so as to be stationary when pressurized, and to flow sequentially downstream by a fixed amount at the time of pressurized release. In accordance with such a cycle, the cutting and winding of the sheet-like reinforcing material 16 are also performed.

[0048]

As described above, one aspect of the present invention relates to a method for manufacturing a sheet-like reinforcing material in which a bonding sheet is bonded to at least one surface of a fiber-reinforced resin sheet, and the reinforcing method is performed from the upstream side of the pressing means. The reinforcing fiber sheet in which the fiber strands are arranged in a sheet shape and the bonding sheet are intermittently supplied in conjunction with the operation of the pressing means, and are provided between the reinforcing fiber sheet and the bonding sheet in front of the pressing means. An uncured matrix resin is injected, and the reinforcing fiber sheet, the matrix resin, and the joining sheet are intermittently pressed by a pressing means to be integrated.

Therefore, according to such a production method, a sheet-like reinforcing material in which a matrix resin is impregnated into a reinforcing fiber without immersing the reinforcing fiber in a resin bath, and a bonding sheet is adhered to at least one surface. Can be manufactured. In particular, since the uncured matrix resin is injected between the reinforcing fiber sheet and the bonding sheet just before the pressing means, even if the matrix resin is room-temperature-curable, it can be stably combined with the reinforcing fibers. It becomes possible to do. In addition, since the reinforcing fiber, the matrix resin, and the joining sheet are intermittently pressurized to be integrated, it is necessary to produce a sheet-like reinforcing material continuously while applying pressure reliably with strong pressure. Becomes possible.

One invention relating to a manufacturing apparatus is a supply means of a reinforcing fiber sheet in which reinforcing fiber strands are arranged in a sheet shape, a supply means of a joining sheet, and a matrix resin injected between the reinforcing fiber sheet and the joining sheet. Injecting means to be provided, provided on the downstream side of the injecting means, a laminating means for laminating the reinforcing fiber sheet, the matrix resin and the bonding sheet, and provided on the downstream side of the laminating means, the reinforcing fiber sheet and the matrix resin. It is provided with an integrating means for integrating the joining sheet by pressurizing, and a control means for intermittently and alternately operating the supply means and the integrating means.

Therefore, according to such an apparatus, it is possible to continuously and stably produce a sheet-like reinforcing material comprising a fiber-reinforced resin sheet and having a bonding sheet adhered to at least one surface. A manufacturing apparatus is provided, and efficient production of a sheet-like reinforcing material becomes possible.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a sheet-like reinforcing material.

FIG. 2 is a cross-sectional view along a length direction of a fiber of the sheet-like reinforcing material.

FIG. 3 is a sectional view in a direction perpendicular to an arrangement direction of the fibers.

FIG. 4 is an exploded perspective view showing reinforcement of wood with a sheet-like reinforcing material.

FIG. 5 is a cross-sectional view of the bonding state.

FIG. 6 is a side view of a main part of a manufacturing apparatus for manufacturing a sheet-like reinforcing material.

FIG. 7 is a perspective view of an essential part showing ejection of a matrix resin from a nozzle.

FIG. 8 is a cross-sectional view of a carbon fiber sheet to which a discharged matrix resin is attached.

FIG. 9 is a perspective view showing ejection of a matrix resin by another nozzle.

FIG. 10 is a perspective view showing ejection of a matrix resin by another nozzle.

FIG. 11 is a side view illustrating the configuration of another type of pressure roller.

FIG. 12 is a piping diagram of an apparatus for mixing a matrix resin main agent and a curing agent.

[Explanation of symbols]

 Reference Signs List 9 reinforcing fiber (carbon fiber) 10 fiber reinforced resin sheet 11 phenol resin impregnated paper (bonding sheet) 12 reinforcing fiber (carbon fiber) sheet 16 sheet reinforcing material 17 wood 20 supply unit 21 creel 22 package 23 guide roller 25 laminating Unit 26 nozzle 27 pressure roller 30 curing unit 31 primary curing device 32 upper surface plate 33 lower surface plate 34 timer 35 curing furnace (secondary curing device) 36 controller 38 winding unit 39 pulling device 40 cutting device 41 winding roll 51 main agent Tank 52 Hardener tank 53, 54 Pump 55 Mixing and stirring device 56 Cooling device 59, 60, Auxiliary roll 62 Discharge port 63 Matrix resin

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigehisa Ishihara Kyoto, Nagaokakyo-shi, Tenjin 3-23-12 (72) Inventor Isamu 2-5, Chikushinmachi, Sakai-shi, Osaka (72) Inventor Hideo Tsukihito 24, Fukami, Kamisugetsu, Jinmeji-cho, Kaifu-gun, Aichi Prefecture (72) Inventor Satoshi Saito 561, Wada-mura, Kogan-gun, Nagano Prefecture (56) References JP-A-57-96825 (JP, A) (58) Int.Cl. ⁷ , DB name) B29C 70/00-70/88

Claims (10)

(57) [Claims] 1. A method of manufacturing a sheet-like reinforcing material comprising a bonding sheet bonded to at least one surface of a fiber-reinforced resin sheet, wherein reinforcing fiber strands are arranged in a sheet form from an upstream side of a pressing means. The sheet and the joining sheet are supplied intermittently in conjunction with the operation of the pressing means, and an uncured matrix resin is provided between the reinforcing fiber sheet and the joining sheet in front of the pressing means. A method for manufacturing a sheet-like reinforcing material, wherein the reinforcing fiber sheet, the matrix resin, and the bonding sheet are intermittently pressed by the pressing means to be integrated. 2. The method according to claim 1, wherein the reinforcing fibers are carbon fibers. 3. The method according to claim 1, wherein the matrix resin is a phenolic resin, and the joining sheet is a phenolic resin-impregnated paper. 4. A bonding sheet is bonded to both sides of a reinforcing fiber sheet, and the matrix resin is injected between the reinforcing fiber sheet and the bonding sheet on both surfaces of the reinforcing fiber sheet. The method for producing a sheet-like reinforcing material according to claim 1, wherein: 5. The method for producing a sheet-like reinforcing material according to claim 1, wherein the reinforcing fiber sheet, the matrix resin, and the joining sheet are hot-pressed by a face plate after pressing by a pressing means. 6. The intermittent supply of the reinforcing fiber sheet and the joining sheet and the intermittent integration of the reinforcing fiber sheet, the matrix resin and the joining sheet are alternately performed. 2. The method for producing a sheet-like reinforcing material according to item 1. 7. The method for producing a sheet-like reinforcing material according to claim 1, which is a method for producing a sheet-like reinforcing material used for reinforcing wood. 8. A supply means for a reinforcing fiber sheet in which reinforcing fiber strands are arranged in a sheet shape, a supply means for a bonding sheet, and an injection means for injecting a matrix resin between the reinforcing fiber sheet and the bonding sheet. And a laminating means provided downstream of the injecting means, for laminating the reinforcing fiber sheet, the matrix resin, and the bonding sheet, provided downstream of the laminating means, the reinforcing fiber sheet; A sheet-like reinforcing material comprising: an integrating means for pressing and integrating the matrix resin and the joining sheet; and a control means for intermittently and alternately operating the supply means and the integrating means. Manufacturing equipment. 9. An apparatus according to claim 8, wherein said integrating means is an apparatus for intermittently performing hot pressing. 10. The apparatus for manufacturing a sheet-like reinforcing material according to claim 8, wherein a curing furnace is provided downstream of said integrating means, and the matrix resin is almost completely cured in said curing furnace. .