JPH06304929A - Method and apparatus for producing resin molded product - Google Patents
Method and apparatus for producing resin molded productInfo
- Publication number
- JPH06304929A JPH06304929A JP9944393A JP9944393A JPH06304929A JP H06304929 A JPH06304929 A JP H06304929A JP 9944393 A JP9944393 A JP 9944393A JP 9944393 A JP9944393 A JP 9944393A JP H06304929 A JPH06304929 A JP H06304929A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- plug
- cavity
- extraction
- molded product
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、各種の樹脂成形品、
たとえば自動車や航空機、鉄道車両等の各種パネル類、
テニスラケットフレーム等の各種スポーツ用品、自転車
フレームを製造する方法および装置に関する。BACKGROUND OF THE INVENTION This invention relates to various resin molded products,
For example, various panels such as automobiles, aircraft, and railway vehicles,
The present invention relates to various sports equipment such as a tennis racket frame and a method and apparatus for manufacturing a bicycle frame.
【０００２】[0002]
【従来の技術】上型と下型とからなる割り型を用いる各
種の樹脂成形品の製造は、熱硬化性樹脂、熱可塑性樹脂
を問わず、広く行われている。このような樹脂成形品の
製造において重要なことの一つに、成形後、成形品を割
り型から取り出すこと、すなわち脱型の問題がある。2. Description of the Related Art Various resin moldings using a split mold composed of an upper mold and a lower mold are widely manufactured regardless of thermosetting resin or thermoplastic resin. One of the important things in the production of such a resin molded product is the problem of removing the molded product from the split mold after molding, that is, the problem of demolding.
【０００３】ところで、割り型に対する樹脂の注入は、
通常、割り型のキャビティに連通する、割り型をくり抜
いて設けた抽気路に抽気プラグを装着してキャビティ内
を減圧するとともに、同様に割り型をくり抜いて設けた
通液路に注入プラグを装着してその注入プラグから行っ
ている。抽気プラグおよび注入プラグの先端は、いずれ
もキャビティまでは達していない。ところが、これによ
ると、成形後、注入プラグを脱離しても、その注入プラ
グの先端とキャビティとの間の通液路に固化した樹脂が
残る。注入プラグがすっぽ抜けて、通液路の全長にわた
って残る場合もある。抽気路においても、気泡の少ない
成形品を得ようとして樹脂を一部抜き出すことから、同
様の問題が起こる。こうなると、通液路や抽気路内で固
化した樹脂はキャビティ内の成形品と一体になっている
から、脱型が容易でないばかりか、通液路や抽気路内の
樹脂を取り除く作業も必要になって作業性が低下する。By the way, the resin injection into the split mold is
Normally, a bleeder plug is attached to the bleed passage provided by hollowing out the split die to communicate with the cavity of the split die to reduce the pressure inside the cavity, and an injection plug is also attached to the fluid passage provided by hollowing out the split die. Then go from that injection plug. The tips of the extraction plug and the injection plug do not reach the cavity. However, according to this, even if the injection plug is detached after molding, the solidified resin remains in the liquid passage between the tip of the injection plug and the cavity. In some cases, the injection plug may slip out and remain over the entire length of the liquid passage. In the extraction passage as well, the same problem occurs because some of the resin is extracted in order to obtain a molded product with few bubbles. In this case, the resin solidified in the liquid passage or the air extraction passage is integrated with the molded product in the cavity, so it is not easy to remove the mold, and it is necessary to remove the resin in the liquid passage or the air extraction passage. And the workability decreases.
【０００４】[0004]
【発明が解決しようとする課題】この発明の目的は、従
来の技術の上述した問題点を解決し、成形後の脱型が極
めて容易であるばかりか、作業性にも優れる、樹脂成形
品の製造方法および装置を提供するにある。SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems of the prior art and to provide a resin molded product which is extremely easy to demold after molding and is excellent in workability. A manufacturing method and apparatus are provided.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、この発明は、所望の成形品形状をしたキャビティ
と、そのキャビティに連通する通液路および抽気路とを
有する割り型を用い、上記通液路に注入プラグを、上記
抽気路に抽気プラグをいずれも先端部が上記キャビティ
内に突出するように装着し、上記抽気プラグを介して上
記キャビティ内を減圧するとともに上記注入プラグを介
して上記キャビティ内に樹脂を注入し、成形した後、上
記注入プラグおよび抽気プラグを回し、そのときの剪断
力によって上記キャビティ内の成形品と上記注入プラグ
および抽気プラグ内で固化した樹脂とを上記注入プラグ
および抽気プラグの先端部において切断、分離すること
を特徴とする、樹脂成形品の製造方法を提供する。キャ
ビティに連通する樹脂溜りを有する割り型を使用すると
きは、通液路に注入プラグを、抽気路に抽気プラグをい
ずれも先端部が上記樹脂溜り内に突出するように装着
し、成形した後は、上記注入プラグおよび抽気プラグを
回し、そのときの剪断力によって上記樹脂溜り内で固化
した樹脂と上記注入プラグおよび抽気プラグ内で固化し
た樹脂とを上記注入プラグおよび抽気プラグの先端部に
おいて切断、分離する。キャビティ内に炭素繊維やガラ
ス繊維、ポリアラミド繊維等の補強繊維からなる基材、
たとえば織物、編物、マット、不織布を入れておいても
よい。In order to achieve the above object, the present invention uses a split mold having a cavity having a desired shape of a molded product, and a fluid passage and an extraction passage communicating with the cavity, An injection plug is attached to the liquid passage, and an extraction plug is attached to the extraction passage so that the tip of each of the extraction plugs protrudes into the cavity, and the inside of the cavity is decompressed via the extraction plug and the injection plug is passed through. After injecting the resin into the cavity and molding, the injection plug and the extraction plug are turned, and the molded product in the cavity and the resin solidified in the injection plug and the extraction plug by the shearing force at that time are described above. Provided is a method for manufacturing a resin molded product, which is characterized in that the injection plug and the extraction plug are cut and separated at the tip ends thereof. When using a split mold that has a resin reservoir that communicates with the cavity, install an injection plug in the liquid passage and an extraction plug in the extraction passage so that the tip of each of the extraction plugs protrudes into the resin reservoir, and after molding Rotating the injection plug and the extraction plug, and cutting the resin solidified in the resin reservoir and the resin solidified in the injection plug and extraction plug by the shearing force at that time at the tip of the injection plug and the extraction plug. ,To separate. A base material made of reinforcing fibers such as carbon fiber, glass fiber, polyaramid fiber, etc. in the cavity,
For example, a woven fabric, a knitted fabric, a mat, or a non-woven fabric may be included.
【０００６】また、この発明は、上記方法に用いる装置
として、所望の成形品形状をしたキャビティと、そのキ
ャビティに連通する通液路および抽気路とを備えた割り
型を有し、かつ、これら通液路および抽気路に着脱自在
に、かつ、回動自在に装着される、装着時に先端部が上
記キャビティ内に突出するプラグとを有していることを
特徴とする、樹脂成形品の製造装置を提供する。キャビ
ティに連通する樹脂溜りを有する割り型の場合には、注
入プラグおよび抽気プラグはその樹脂溜り内に先端部が
突出するように装着される。Further, the present invention has, as an apparatus used in the above method, a split mold provided with a cavity having a desired molded product shape, and a liquid passage and an extraction passage communicating with the cavity, and Manufacture of a resin molded product, characterized in that it has a plug that is detachably and rotatably attached to the liquid passage and the air extraction passage and has a tip whose end projects into the cavity when attached. Provide a device. In the case of a split mold having a resin reservoir communicating with the cavity, the injection plug and the extraction plug are mounted in the resin reservoir so that the tips thereof protrude.
【０００７】この発明を図面に基いて詳細に説明する
に、図１において、割り型は上型１と下型２とからな
る。この割り型は、下型２に対して上型１を閉じたと
き、所望の成形品形状（この例ではカップ状）をしたキ
ャビティ３が形成される。このキャビティ３は、ゲート
４を介して樹脂溜り５と連通している。また、この樹脂
溜り５は通液路６に連通している。同様に、キャビティ
３は、ゲート９を介して樹脂溜り１０と連通している。
また、この樹脂溜り１０は、抽気路１１に連通してい
る。もっとも、この発明においては、樹脂溜り５、１０
を設けることが必須であるわけではなく、キャビティ３
と通液路６、１１とがそれぞれゲート４、９、樹脂溜り
５、１０を介することなく直接連通していてもよい。The present invention will be described in detail with reference to the drawings. In FIG. 1, the split mold comprises an upper mold 1 and a lower mold 2. In this split mold, when the upper mold 1 is closed with respect to the lower mold 2, a cavity 3 having a desired molded product shape (cup shape in this example) is formed. The cavity 3 communicates with the resin reservoir 5 via the gate 4. The resin reservoir 5 communicates with the liquid passage 6. Similarly, the cavity 3 communicates with the resin reservoir 10 via the gate 9.
The resin reservoir 10 communicates with the extraction passage 11. However, in this invention, the resin pools 5, 10
It is not essential to provide the cavity 3
The liquid passages 6 and 11 may directly communicate with each other without the gates 4 and 9 and the resin reservoirs 5 and 10, respectively.
【０００８】通液路６には、注入プラグ７が、たとえば
ねじ込みによって、着脱自在に、かつ、回動自在に装着
される。この注入プラグ７は、樹脂の注入に用いるだけ
でなく、成形後、それを回したときの剪断力によって、
その注入プラグ７内で固化した樹脂と、樹脂溜り５内で
固化した樹脂、樹脂溜りを設けない場合にはキャビティ
３内で固化した樹脂、すなわち成形品とを注入プラグ７
の先端部において切断、分離し、成形品の脱型を容易に
するものである。そのため、注入プラグ７は、回すこと
による剪断力が伝わりやすいよう、先端部の平面形状
（先端部側から見た形状）が、図２に示すようなものよ
りも、図３に示すように楕円形であったり、図４に示す
ように多角形であったり、図５や図６に示すように四角
形であったり、図７に示すように半円形であったりする
もののほうがよい。また、円形でも、図８に示すように
偏心しているほうがよい。さらに、図９に示すような２
個の半円形の組み合せであってもよい。もっとも、注入
時に樹脂が通過する部分の全体がこれらのような形状で
ある必要はなく、先端部のみが図３〜図９に示すような
形状でもよいものである。そのような注入プラグは、た
とえば、図２に示すような円筒状の注入プラグの先端面
に、図３〜図９に示すような形状にくりぬいた円板を溶
接等によって取り付けることによって簡単に得ることが
できる。An injection plug 7 is removably and rotatably attached to the liquid passage 6 by screwing, for example. This injection plug 7 is used not only for injection of resin, but also by the shearing force when turning it after molding.
The resin solidified in the injection plug 7, the resin solidified in the resin pool 5, and the resin solidified in the cavity 3 when the resin pool is not provided, that is, a molded product,
It is cut and separated at the tip of the to facilitate the demolding of the molded product. Therefore, the injection plug 7 has a planar shape of the tip portion (shape viewed from the tip portion side) that is elliptical as shown in FIG. 3 rather than that shown in FIG. 2 so that shearing force due to turning can be easily transmitted. It is better to have a shape, a polygon as shown in FIG. 4, a quadrangle as shown in FIGS. 5 and 6, or a semicircle as shown in FIG. Moreover, even if it is circular, it is better to be eccentric as shown in FIG. Further, as shown in FIG.
It may be a combination of individual semi-circles. However, the entire portion through which the resin passes at the time of injection need not have such a shape, and only the tip may have a shape as shown in FIGS. 3 to 9. Such an injection plug can be easily obtained by, for example, attaching a circular plate having a shape as shown in FIGS. 3 to 9 to the tip surface of a cylindrical injection plug as shown in FIG. 2 by welding or the like. be able to.
【０００９】注入プラグ７は、上述したように、成形
後、それを回したときの剪断力によって、その注入プラ
グ７内で固化した樹脂と、樹脂溜り５内で固化した樹
脂、樹脂溜りを設けない場合にはキャビティ３内で固化
した樹脂、すなわち成形品とを樹脂注入プラグ７の先端
部において切断、分離し、成形品の脱型を容易にするも
のである。そのために、その先端部が樹脂溜り５内（樹
脂溜り５を設けないものにあってはキャビティ３内）に
わずかに突出するように樹脂注入路６に装着する。どれ
くらい突出させて装着するかは、突出させすぎると切
断、分離が困難になったり、成形品の表面を大きく傷付
けたりするので、０．５〜３mmほどにするのがよい。As described above, the injection plug 7 is provided with the resin solidified in the injection plug 7 and the resin solidified in the resin reservoir 5 by the shearing force when the injection plug 7 is rotated after molding. If not, the resin solidified in the cavity 3, that is, the molded product is cut and separated at the tip of the resin injection plug 7 to facilitate the demolding of the molded product. Therefore, the resin injection path 6 is mounted so that its tip portion slightly projects into the resin reservoir 5 (in the cavity 3 in the case where the resin reservoir 5 is not provided). The amount of protrusion should be set to about 0.5 to 3 mm, because if it is protruded too much, it will be difficult to cut and separate or the surface of the molded product will be severely damaged.
【００１０】一方、抽気路１１にも、注入プラグ７と全
く同様の抽気プラグ１２が、注入プラグ７と全く同様に
装着される。On the other hand, a bleed air plug 12 that is exactly the same as the injection plug 7 is mounted in the bleed air passage 11 in the same manner as the injection plug 7.
【００１１】さて、上述したような割り型を使用した樹
脂成形品の製造は、まず、図１に示すように、注入プラ
グ７に樹脂注入管８を接続し、また、抽気プラグ１２に
抽気管１３を接続し、抽気プラグ１２を介してキャビテ
ィ３内を減圧しながら、樹脂注入管８から、注入プラグ
７、樹脂溜り５、ゲート４を介して、所望の温度に加熱
した割り型のキャビティ３に樹脂を注入する。このと
き、成形品に気泡ができないよう、一部の樹脂を抽気プ
ラグ１２を介して抜き出す。To manufacture a resin molded product using the split mold as described above, first, as shown in FIG. 1, a resin injection pipe 8 is connected to the injection plug 7 and an extraction pipe is connected to the extraction plug 12. Cavity 3 of the split mold, which is heated to a desired temperature from resin injection pipe 8 through injection plug 7, resin reservoir 5 and gate 4 while decompressing the inside of cavity 3 via extraction plug 12 Inject resin into. At this time, a part of the resin is extracted through the extraction plug 12 so that no bubbles are formed in the molded product.
【００１２】樹脂が固化する、すなわち成形が終わる
と、注入プラグ７および抽気プラグ１２を回す。する
と、そのときの剪断力によって樹脂溜り５、１０内で固
化した樹脂と注入プラグ７、抽気プラグ１２内で固化し
た樹脂とを注入プラグ７、抽気プラグ１２の先端部にお
いてそれぞれ切断、分離することができる。ねじ切るの
である。切断、分離後は、割り型を開き、キャビティ３
内の成形品を樹脂溜り５、１０内で固化した樹脂ととも
に取り出し、ゲート４、９の部分で樹脂溜り５、１０内
で固化した樹脂の部分を取り除き、成形品を得る。When the resin is solidified, that is, when the molding is completed, the injection plug 7 and the extraction plug 12 are turned. Then, the resin solidified in the resin reservoirs 5 and 10 and the resin solidified in the injection plug 7 and the extraction plug 12 are cut and separated at the tip portions of the injection plug 7 and the extraction plug 12 by the shearing force at that time. You can The thread is cut. After cutting and separating, open the split mold and set the cavity 3
The molded product inside is taken out together with the resin solidified in the resin reservoirs 5 and 10, and the resin part solidified in the resin reservoirs 5 and 10 is removed at the gates 4 and 9 to obtain a molded product.
【００１３】上記において、樹脂は、エポキシ樹脂や不
飽和ポリエステル樹脂、ポリビニルエステル樹脂、ポリ
イミド樹脂等の熱硬化性樹脂や、ナイロン樹脂、ポリエ
ステル樹脂等の熱可塑性樹脂であってよい。また、キャ
ビティ内に炭素繊維やガラス繊維、ポリアラミド繊維等
の補強繊維からなる基材、たとえば織物、編物、マッ
ト、不織布を入れておくと、注入された樹脂がそれらの
基材に含浸され、繊維強化プラスチック（ＦＲＰ）や繊
維強化熱可塑性プラスチック（ＦＲＴＰ）の成形品を得
ることができるようになる。In the above, the resin may be a thermosetting resin such as an epoxy resin, an unsaturated polyester resin, a polyvinyl ester resin or a polyimide resin, or a thermoplastic resin such as a nylon resin or a polyester resin. When a base material made of reinforcing fibers such as carbon fiber, glass fiber, polyaramid fiber, etc., such as a woven fabric, a knitted fabric, a mat or a non-woven fabric, is put in the cavity, the injected resin is impregnated into the base material, Molded articles of reinforced plastics (FRP) and fiber reinforced thermoplastics (FRTP) can be obtained.
【００１４】[0014]
【発明の効果】この発明は、割り型の通液路および抽気
路に着脱自在に、かつ、回動自在に設けた、装着時に先
端部がキャビティ内または樹脂溜り内に突出するプラグ
を有する装置を用い、成形後、プラグを回し、そのとき
の剪断力によってキャビティ内の成形品または樹脂溜り
内で固化した樹脂とプラグ内で固化した樹脂とをプラグ
の先端部において切断、分離するので、脱型が極めて容
易に行えるようになるばかりか、注入路や抽気路内で固
化した樹脂を取り除いたりする作業も不要になって作業
性が向上する。According to the present invention, there is provided an apparatus having a plug which is detachably and rotatably provided in the split type liquid passage and the extraction passage, and whose tip portion is projected into the cavity or the resin reservoir at the time of mounting. After molding, rotate the plug after molding, and the shearing force at that time cuts and separates the resin solidified in the molded product in the cavity or the resin pool and the resin solidified in the plug at the tip of the plug. Not only the mold can be made extremely easy, but also the work of removing the solidified resin in the injection passage and the extraction passage is unnecessary, and the workability is improved.
【図１】この発明の一実施態様に係る装置の概略縦断面
図である。FIG. 1 is a schematic vertical sectional view of an apparatus according to an embodiment of the present invention.
【図２】一実施態様に係るプラグの先端部の平面形状を
示す図である。FIG. 2 is a diagram showing a planar shape of a tip portion of a plug according to an embodiment.
【図３】他の実施態様に係るプラグの先端部の平面形状
を示す図である。FIG. 3 is a diagram showing a planar shape of a tip portion of a plug according to another embodiment.
【図４】他の実施態様に係るプラグの先端部の平面形状
を示す図である。FIG. 4 is a diagram showing a planar shape of a tip portion of a plug according to another embodiment.
【図５】他の実施態様に係るプラグの先端部の平面形状
を示す図である。FIG. 5 is a diagram showing a planar shape of a tip portion of a plug according to another embodiment.
【図６】他の実施態様に係るプラグの先端部の平面形状
を示す図である。FIG. 6 is a diagram showing a planar shape of a tip portion of a plug according to another embodiment.
【図７】他の実施態様に係るプラグの先端部の平面形状
を示す図である。FIG. 7 is a diagram showing a planar shape of a tip portion of a plug according to another embodiment.
【図８】他の実施態様に係るプラグの先端部の平面形状
を示す図である。FIG. 8 is a diagram showing a planar shape of a tip portion of a plug according to another embodiment.
【図９】他の実施態様に係るプラグの先端部の平面形状
を示す図である。FIG. 9 is a diagram showing a planar shape of a tip portion of a plug according to another embodiment.
１：上型 ２：下型 ３：キャビティ ４：ゲート ５：樹脂溜り ６：通液路 ７：注入プラグ ８：樹脂注入管 ９：ゲート １０：樹脂溜り １１：抽気路 １２：抽気プラグ １３：抽気管 1: Upper mold 2: Lower mold 3: Cavity 4: Gate 5: Resin reservoir 6: Liquid passage 7: Injection plug 8: Resin injection pipe 9: Gate 10: Resin reservoir 11: Extraction passage 12: Extraction plug 13: Extraction trachea
Claims (5)
のキャビティに連通する通液路および抽気路とを有する
割り型を用い、上記通液路に注入プラグを、上記抽気路
に抽気プラグをいずれも先端部が上記キャビティ内に突
出するように装着し、上記抽気プラグを介して上記キャ
ビティ内を減圧するとともに上記注入プラグを介して上
記キャビティ内に樹脂を注入し、成形した後、上記注入
プラグおよび抽気プラグを回し、そのときの剪断力によ
って上記キャビティ内の成形品と上記注入プラグおよび
抽気プラグ内で固化した樹脂とを上記注入プラグおよび
抽気プラグの先端部において切断、分離することを特徴
とする、樹脂成形品の製造方法。1. A split mold having a cavity having a desired shape of a molded article and a liquid passage and an air extraction passage communicating with the cavity is used, and an injection plug is provided in the liquid passage and an extraction plug is provided in the air extraction passage. In each case, the tip is mounted so as to project into the cavity, the inside of the cavity is decompressed through the extraction plug, and the resin is injected into the cavity through the injection plug, and after molding, the injection is performed. The plug and the extraction plug are turned, and the molded product in the cavity and the resin solidified in the injection plug and the extraction plug are cut and separated at the tip of the injection plug and the extraction plug by the shearing force at that time. And a method for manufacturing a resin molded product.
のキャビティに連通する２個の樹脂溜りと、一方の樹脂
溜りに連通する通液路と、他方の樹脂溜りに連通する抽
気路とを有する割り型を用い、上記通液路に注入プラグ
を、上記抽気路に抽気プラグをいずれも先端部が上記樹
脂溜り内に突出するように装着し、上記抽気プラグを介
して上記キャビティ内を減圧するとともに上記注入プラ
グを介して上記キャビティ内に樹脂を注入し、成形した
後、上記注入プラグおよび抽気プラグを回し、そのとき
の剪断力によって上記樹脂溜り内で固化した樹脂と上記
注入プラグおよび抽気プラグ内で固化した樹脂とを上記
注入プラグおよび抽気プラグの先端部において切断、分
離することを特徴とする、樹脂成形品の製造方法。2. A cavity having a desired molded product shape, two resin reservoirs communicating with the cavity, a liquid passage communicating with one resin reservoir, and a bleed passage communicating with the other resin reservoir. A split mold is used, and an injection plug is attached to the liquid passage and an extraction plug is attached to the extraction passage so that the tips of the extraction plugs protrude into the resin reservoir, and the inside of the cavity is decompressed through the extraction plug. At the same time, the resin is injected into the cavity through the injection plug, and after molding, the injection plug and the extraction plug are turned, and the resin solidified in the resin reservoir by the shearing force at that time and the injection plug and the extraction air. A method for producing a resin molded product, characterized in that the resin solidified in the plug is cut and separated at the tip portions of the injection plug and the extraction plug.
繊維基材を入れておく、請求項１または２の、樹脂成形
品の製造方法。3. The method for producing a resin molded product according to claim 1, wherein a reinforcing fiber base material is put in the cavity prior to the injection of the resin.
のキャビティに連通する通液路および抽気路とを備えた
割り型を有し、かつ、これら通液路および抽気路に着脱
自在に、かつ、回動自在に装着される、装着時に先端部
が上記キャビティ内に突出するプラグとを有しているこ
とを特徴とする、樹脂成形品の製造装置。4. A split mold having a cavity having a desired shape of a molded product, and a fluid passage and an air extraction passage communicating with the cavity, and detachably attached to the liquid passage and the air extraction passage. An apparatus for manufacturing a resin molded product, further comprising a plug that is rotatably mounted and has a tip protruding into the cavity when mounted.
のキャビティに連通する２個の樹脂溜りと、一方の樹脂
溜りに連通する通液路と、他方の樹脂溜りに連通する抽
気路とを備えた割り型を有し、かつ、これら通液路およ
び抽気路に着脱自在に、かつ、回動自在に装着される、
装着時に先端部が上記樹脂溜り内に突出するプラグとを
有していることを特徴とする、樹脂成形品の製造装置。5. A cavity having a desired molded product shape, two resin reservoirs communicating with the cavity, a fluid passage communicating with one resin reservoir, and an extraction passage communicating with the other resin reservoir. A split mold provided, and is detachably and rotatably attached to the liquid passage and the bleed passage.
An apparatus for manufacturing a resin molded product, characterized in that a tip portion has a plug protruding into the resin reservoir when mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9944393A JP2778407B2 (en) | 1993-04-26 | 1993-04-26 | Method and apparatus for manufacturing resin molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9944393A JP2778407B2 (en) | 1993-04-26 | 1993-04-26 | Method and apparatus for manufacturing resin molded product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06304929A true JPH06304929A (en) | 1994-11-01 |
| JP2778407B2 JP2778407B2 (en) | 1998-07-23 |
Family
ID=14247535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9944393A Expired - Fee Related JP2778407B2 (en) | 1993-04-26 | 1993-04-26 | Method and apparatus for manufacturing resin molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2778407B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004226941A (en) * | 2002-11-28 | 2004-08-12 | Fuji Xerox Co Ltd | Method for manufacturing polymer optical waveguide and optical element, and optical element |
| JP2015003502A (en) * | 2013-06-24 | 2015-01-08 | 三菱電機株式会社 | Method and apparatus for production of fiber-reinforced plastic molding and wall of elevator |
| JP2016135573A (en) * | 2015-01-23 | 2016-07-28 | 日産自動車株式会社 | Molding method and molding device of composite material |
-
1993
- 1993-04-26 JP JP9944393A patent/JP2778407B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004226941A (en) * | 2002-11-28 | 2004-08-12 | Fuji Xerox Co Ltd | Method for manufacturing polymer optical waveguide and optical element, and optical element |
| JP4581328B2 (en) * | 2002-11-28 | 2010-11-17 | 富士ゼロックス株式会社 | Polymer optical waveguide and optical element manufacturing method |
| JP2015003502A (en) * | 2013-06-24 | 2015-01-08 | 三菱電機株式会社 | Method and apparatus for production of fiber-reinforced plastic molding and wall of elevator |
| JP2016135573A (en) * | 2015-01-23 | 2016-07-28 | 日産自動車株式会社 | Molding method and molding device of composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2778407B2 (en) | 1998-07-23 |
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