JPH0557101B2 - - Google Patents
Info
- Publication number
- JPH0557101B2 JPH0557101B2 JP1077336A JP7733689A JPH0557101B2 JP H0557101 B2 JPH0557101 B2 JP H0557101B2 JP 1077336 A JP1077336 A JP 1077336A JP 7733689 A JP7733689 A JP 7733689A JP H0557101 B2 JPH0557101 B2 JP H0557101B2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- frp
- prepreg sheet
- manufacturing
- long fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229920005992 thermoplastic resin Polymers 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polyphenylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は軽量にして高強度のFRPボルトの製
造方法及びそれに使用するプリプレグシートの製
造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a lightweight, high-strength FRP bolt and a method for manufacturing a prepreg sheet used therein.
（従来の技術）
この種FRPボルトの製造方法としては、FRP
素材の射出成形による方法とFRP長繊維の多数
本を一方向に揃えて形成した成形丸棒から切削や
転造による方法とが一般に知られている。(Conventional technology) As a manufacturing method for this type of FRP bolt, FRP
Generally known methods include injection molding of the material and cutting or rolling from a formed round bar formed by aligning a large number of FRP long fibers in one direction.
（発明が解決しようとする課題）
しかしながら前者によるときは、繊維はせいぜ
い１〜10mmの短繊維であるため繊維の強度が生か
されず、ボルトとして強度の低いものであり、
又、後者によるときはせつかく補強された長繊維
が、切削や転造によつて切断されボルトとして十
分な強度が得られない不都合があつた。(Problem to be solved by the invention) However, in the case of the former, the fibers are short fibers of 1 to 10 mm at most, so the strength of the fibers is not utilized, and the strength of the bolt is low.
Moreover, in the case of the latter method, the long fibers that have been carefully reinforced are broken by cutting or rolling, and there is a problem that sufficient strength as a bolt cannot be obtained.
本発明はかかる不都合を改良することを目的と
する。 The present invention aims to improve such disadvantages.
（課題を解決するための手段）
上記の目的を達成するための本発明の構成は熱
可塑性樹脂を含浸させたFRP長繊維の多数本を
一列に整列させて形成したプリプレグシートを棒
状に巻回し、この棒状に巻回したプリプレグシー
トをボルト加工面を有する上成形型と、下成形型
との加熱による加圧でボルトに成形することを特
徴とする。(Means for Solving the Problems) The structure of the present invention to achieve the above object is to wind a prepreg sheet formed by aligning a large number of FRP long fibers impregnated with a thermoplastic resin into a rod shape. The present invention is characterized in that the prepreg sheet wound into a rod shape is formed into a bolt by heating and pressing between an upper mold having a bolt processing surface and a lower mold.
（作用）
そして本発明は上記の手段により長繊維の
FRPからなるプリプレグシートは、含浸する熱
可塑性樹脂のため自在に巻回されて棒状に形成さ
れこの棒状に巻回されたプリプレグシートをボル
ト成形面を有する上成形型と下成形型との加熱に
よる加圧でボルトに成形したものであるから、そ
のボルト成形が一行程で行われて長繊維を切断す
ることがない。(Function) The present invention uses the above-mentioned means to produce long fibers.
A prepreg sheet made of FRP is formed into a rod shape by being freely wound due to the thermoplastic resin impregnated therein. Since it is formed into a bolt under pressure, the bolt formation is done in one step, and the long fibers are not cut.
（実施例）
第１図は本発明の方法を実施する装置の一例を
示すもので、該装置は下面に半截されたボルト加
工面を有する上成形型１と、上面に半截されたボ
ルト加工面を有する下成形型２とボルト頭部に六
角孔を打抜くための打抜きポンチ３と下成形型２
の加工面に出没するエジエクタ４とから形成され
ている。(Example) Fig. 1 shows an example of an apparatus for carrying out the method of the present invention. A punch 3 for punching a hexagonal hole in the bolt head and a lower mold 2.
It is formed from an ejector 4 that appears and retracts from the machined surface.
そしてこの装置を用いてFRPボルトを製造す
るには熱可塑性樹脂を含浸させたFRP長繊維の
多数本を一列に整列させて形成したプリプレグシ
ート５を棒状に巻回して、この棒状に巻回された
プリプレグシート５を上成形型１と下成形型２と
の加工面に充填してこれら型１，２の側面から電
気ヒータまたは赤外線炉などにより300〜370℃に
加熱し、この加熱状態で型１，２を加圧する事に
よつてボルトを形成し、さらに打抜きポンチ３を
押し込んでボルト頭部に六角孔を形成し、次いで
少くとも100℃以下に型１，２を冷却した後打抜
きポンチ３と上成形型１とを復帰させ、エジエク
タ４を突出させて下成形型２より製品を取り出す
ものである。 To manufacture an FRP bolt using this device, a prepreg sheet 5 formed by arranging a large number of FRP long fibers impregnated with thermoplastic resin in a line is wound into a rod shape, and the prepreg sheet 5 is wound into a rod shape. The processed surfaces of the upper mold 1 and lower mold 2 are filled with prepreg sheet 5, which is then heated from the sides of these molds 1 and 2 to 300 to 370°C using an electric heater or infrared furnace. A bolt is formed by pressurizing molds 1 and 2, and a hexagonal hole is formed in the bolt head by pressing punch 3, and then after cooling molds 1 and 2 to at least 100°C, punch 3 is pressed. and the upper mold 1 are returned to their original positions, the ejector 4 is made to protrude, and the product is taken out from the lower mold 2.
なおその際上下成形型１，２の加圧だけでは、
ボルトのネジの成形が不十分な場合は、第２図に
示すように、プリプレグシートの数枚を積層して
形成した予備成形型体６を、ボルトのネジピツチ
と同じピツチを有する上型７と下型８とで加圧し
て予めボルトのネジピツチと同じピツトを有する
予備成形体６を用意し、この予備成形体６をそれ
ぞれ上成形型１と下成形型２との加工面に密着さ
せ、これら予備成形体６間に前記棒状に巻回した
プリプレグシート５を充填して上下成形型１，２
を加熱加工するときネジピツチは正確に成形でき
る。そしてその予備成形体６も、その積層される
プリプレグシートをその繊維の方向を例えばボル
ト軸方向に対して0゜45゜、−45゜というように角度を
変えて積層していくならば、予備成形体６のネジ
ピツチはボルトの引抜り、捩りに対する最適な繊
維配向を得ることができる。 In addition, in this case, if only the upper and lower molds 1 and 2 are pressurized,
If the bolt threads are not formed sufficiently, as shown in Fig. 2, a preform body 6 formed by laminating several prepreg sheets is used with an upper mold 7 having the same pitch as the bolt thread pitch. A preform 6 having the same pitch as the screw pitch of the bolt is prepared by applying pressure with the lower mold 8, and the preform 6 is brought into close contact with the machined surfaces of the upper mold 1 and the lower mold 2, respectively. The prepreg sheet 5 wound into a rod shape is filled between the preforms 6 and upper and lower molds 1 and 2 are formed.
When heat-processing, the screw pitch can be formed accurately. The preform 6 can also be obtained by laminating the prepreg sheets with the fiber direction changed at an angle of 0°45° or -45° relative to the bolt axis direction. The thread pitch of the molded body 6 can provide optimum fiber orientation against bolt withdrawal and twisting.
又、前記熱可塑性樹脂を含浸させたプリプレグ
シート５は第３図に示す方法をもつて製造され
る。即ち同図に示すように数本のボビン９より
FRP繊維を引出し、引き揃えローラ１０により
FRP長繊維の多数本を一列に整列させ、この整
列されたFRP長繊維の多数本をアセトン洗浄槽
１１内に導き、該槽１１内の前後１対のガイドロ
ーラ１２，１３で繊維をたるませるようにして超
音波洗浄をし、サイジング剤をすべてきれいに落
とす。次いで洗浄槽１１外のガイドローラ１４に
よつてアセトンを除去し、更に３本の緊張ローラ
１５，１５，１５を通るところで熱風を送るか、
赤外線炉１６で完全にアセトンを除去して乾燥さ
せる。次いで濃度が調整されたポリフエニレン、
サルフアイド（P.P.S）のような熱可塑性樹脂塗
料槽１７内に導き該塗料槽１７内の前後１対のガ
イドローラ１８，１９で繊維をたるませるように
して樹脂を含浸させ該塗料槽１７外のゴム製のス
クレイパー２０やローラ２１によつて余分な樹脂
分を除去させ、更にその樹脂の含有率を50重量％
以下にするため上下をPTFE穴あきシート２２で
挾みこれをローラ２３で密着させた後、ガラス繊
維ウエブ２４で加圧して余分な樹脂を除去させ
る。更に赤外線炉２５で溶媒分を95〜98％除去し
てプリプレグシートとするもので、かくて出来上
つたプリプレグシートは所定の長さに切断すべく
固定板２６，２６で固定してカツタ２７で切断す
る。 Further, the prepreg sheet 5 impregnated with the thermoplastic resin is manufactured by the method shown in FIG. That is, as shown in the figure, from several bobbins 9
The FRP fibers are pulled out and aligned by the pulling roller 10.
A large number of FRP long fibers are arranged in a line, and the arranged large number of FRP long fibers are guided into an acetone cleaning tank 11, and a pair of front and rear guide rollers 12, 13 in the tank 11 loosen the fibers. Perform ultrasonic cleaning to remove all sizing agent. Next, the acetone is removed by a guide roller 14 outside the cleaning tank 11, and then hot air is sent past three tension rollers 15, 15, 15, or
Acetone is completely removed and dried in an infrared oven 16. Then polyphenylene with adjusted concentration,
A thermoplastic resin such as sulfide (PPS) is introduced into the paint tank 17, and the fibers are loosened by a pair of front and rear guide rollers 18 and 19 inside the paint tank 17 to impregnate the resin, and the rubber outside the paint tank 17 is Excess resin is removed using a manufactured scraper 20 and roller 21, and the resin content is further reduced to 50% by weight.
In order to do the following, the upper and lower parts are sandwiched between PTFE perforated sheets 22, which are brought into close contact with rollers 23, and then pressed with a glass fiber web 24 to remove excess resin. Further, 95 to 98% of the solvent is removed in an infrared furnace 25 to obtain a prepreg sheet, and the thus completed prepreg sheet is fixed with fixing plates 26, 26 and cut into a predetermined length with a cutter 27. disconnect.
（発明の効果）
このように本発明によるときは熱可塑性樹脂を
含浸させたFRP長繊維の多数本を一列に整列さ
せて形成したプリプレグシートを棒状に巻回し
て、これをボルト加工面を有する上成形型と下成
形型との加熱による加圧でボルトに成形したもの
であるからプリプレグシートは上下成形型の一行
程でその繊維を切断されることなくボルトに成形
できて高強度のボルトが簡単に成形できる。(Effects of the Invention) According to the present invention, a prepreg sheet formed by arranging a large number of FRP long fibers impregnated with a thermoplastic resin in a line is wound into a rod shape, and the prepreg sheet is wound into a rod shape, which has a bolted surface. Because the prepreg sheet is formed into bolts by heating and pressurizing the upper and lower molds, the prepreg sheet can be formed into bolts in one stroke of the upper and lower molds without cutting the fibers, resulting in high-strength bolts. Can be easily molded.
又そのプリプレグシートは数本のボビンより引
出されるFRPの長繊維を引揃えローラを介して
一列に整列させ、この整列したFRPの長繊維を
洗浄、乾燥させた後、熱可塑性樹脂塗料を含浸さ
せて該樹脂の含有率を50重量％以下としてシート
に成形させたからシートが簡単に成形できると共
にそのシートの取扱いが容易となる等の効果を有
する。 In addition, the prepreg sheet is made by aligning FRP long fibers drawn from several bobbins into a single line via an alignment roller, washing and drying the aligned FRP long fibers, and then impregnating them with thermoplastic resin paint. Since the content of the resin is 50% by weight or less and the sheet is formed, the sheet can be easily formed and the sheet can be easily handled.
第１図は本発明の方法を実施する装置の一例を
示す斜面図、第２図は予備成形体の加工方法を示
す概略図、第３図はプリプレグシートの製造工程
図である。
１……上成形型、２……下成形型、５……プリ
プレグシート。
FIG. 1 is a perspective view showing an example of an apparatus for carrying out the method of the present invention, FIG. 2 is a schematic view showing a method for processing a preform, and FIG. 3 is a diagram showing a manufacturing process for a prepreg sheet. 1... Upper mold, 2... Lower mold, 5... Prepreg sheet.
Claims (1)
数本を一列に整列させて形成したプリプレグシー
トを棒状に巻回し、この棒状に巻回したプリプレ
グシートをボルト加工面を有する上成形型と、下
成形型との加熱による加圧でボルトに成形するこ
とを特徴とするFRPボルトの製造方法。 ２ 前記上成形型と下成形型との加工面に、予め
ボルトのネジピツチと同じピツチのネジ山を形成
したプリプレグシートの複数枚からなる予備成形
体を密着し、該予備成形体を介して前記棒状に巻
回したプリプレグシートを前記上成形型と下成形
型の加熱による加圧でボルトに成形することを特
徴とする特許請求の範囲第１項記載のFRPボル
トの製造方法。 ３ 複数のボビンより引出されるFRPの長繊維
を引揃えローラを介して一列に整列させ、この整
列したFRPの長繊維を洗浄、乾燥させた後、こ
れに熱可塑性樹脂塗料を含浸させ、該樹脂塗料の
含有率を50重量％以下としてシートに成形させた
ことを特徴とするFRPボルトの製造に使用する
プリプレグシートの製造方法。[Claims] 1. A prepreg sheet formed by arranging a large number of FRP long fibers impregnated with a thermoplastic resin in a line is wound into a rod shape, and the prepreg sheet wound into a rod shape has a bolted surface. A method for manufacturing an FRP bolt, which is characterized by forming the bolt into a bolt by heating and pressurizing an upper mold and a lower mold. 2. A preformed body consisting of a plurality of prepreg sheets in which threads of the same pitch as the thread pitch of the bolt have been formed is brought into close contact with the processed surfaces of the upper molding die and the lower molding die, and the above-mentioned 2. The method of manufacturing an FRP bolt according to claim 1, wherein a prepreg sheet wound into a rod shape is formed into a bolt by heating and pressurizing the upper mold and the lower mold. 3. FRP long fibers pulled out from multiple bobbins are aligned in a line via an alignment roller, and after washing and drying the aligned FRP long fibers, they are impregnated with thermoplastic resin paint, and the A method for manufacturing a prepreg sheet used for manufacturing FRP bolts, characterized in that the sheet is formed with a resin paint content of 50% by weight or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1077336A JPH02253925A (en) | 1989-03-29 | 1989-03-29 | Manufacture of frp bolt and manufacture of prepreg sheet to be used for that |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1077336A JPH02253925A (en) | 1989-03-29 | 1989-03-29 | Manufacture of frp bolt and manufacture of prepreg sheet to be used for that |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02253925A JPH02253925A (en) | 1990-10-12 |
| JPH0557101B2 true JPH0557101B2 (en) | 1993-08-23 |
Family
ID=13631082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1077336A Granted JPH02253925A (en) | 1989-03-29 | 1989-03-29 | Manufacture of frp bolt and manufacture of prepreg sheet to be used for that |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02253925A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6432246B2 (en) * | 2014-09-26 | 2018-12-05 | 株式会社豊田自動織機 | Screw member and electrode assembly manufacturing apparatus |
-
1989
- 1989-03-29 JP JP1077336A patent/JPH02253925A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02253925A (en) | 1990-10-12 |
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