JPH08179161A - Mold and core for optical connector molding - Google Patents
Mold and core for optical connector moldingInfo
- Publication number
- JPH08179161A JPH08179161A JP31811194A JP31811194A JPH08179161A JP H08179161 A JPH08179161 A JP H08179161A JP 31811194 A JP31811194 A JP 31811194A JP 31811194 A JP31811194 A JP 31811194A JP H08179161 A JPH08179161 A JP H08179161A
- Authority
- JP
- Japan
- Prior art keywords
- pin
- thin
- groove
- core
- mold
- 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
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、樹脂を注入して光コネ
クタを成形するための金型及びこれに用いる中子に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold for injecting resin to mold an optical connector and a core used for the mold.
【０００２】[0002]
【従来の技術】多数の光ファイバを平行に配置したテー
プファイバ用の光コネクタを成形するための金型として
は、例えば電子通信学会論文誌 ′８５／３Ｖｏｌ．Ｊ
−６８−Ｂ Ｎｏ３「プラスチック成形光ファイバ多心
コネクタの設計と特性」に述べられており、また、本発
明者は特願平５−２５２２４９号によって光ファイバを
固定するための細穴を成形するに際し、相互の位置精度
を改善する方法を示した。2. Description of the Related Art As a mold for molding an optical connector for a tape fiber in which a large number of optical fibers are arranged in parallel, for example, the Institute of Electronics and Communication Engineers '85 / 3 Vol. J
-68-B No. 3 "Design and characteristics of plastic molded optical fiber multi-fiber connector", and the present inventor forms a fine hole for fixing an optical fiber according to Japanese Patent Application No. 5-252249. In this case, a method to improve mutual positional accuracy was shown.
【０００３】[0003]
【発明が解決しようとする課題】従来この種の細穴成形
金型は、光ファイバを固定するための細穴が途中で形状
を変える必要があり、また、細穴成形用のピンとその他
の部品で構成された中子を引き抜く構成になるので、中
子の位置決めが難しいという問題があった。そして、こ
の位置決め精度は、型締め変形あるいは成形樹脂材料の
収縮や温度変化による時間的変化によって決定される。
そのため、金型の加工精度及び測定精度が著しく困難に
なるという問題があった。そこで本発明は、細穴の形状
を途中で変える必要がなく、又、相互の位置精度の高い
光コネクタ成形用金型及びこれに用いる中子の構成を提
供することを目的とする。Conventionally, in this type of small hole forming die, it is necessary to change the shape of the small hole for fixing the optical fiber, and the pin for forming the small hole and other parts. Since the core configured by is pulled out, there is a problem that positioning of the core is difficult. The positioning accuracy is determined by the mold clamping deformation, the shrinkage of the molding resin material, and the temporal change due to the temperature change.
Therefore, there has been a problem that the machining accuracy and the measurement accuracy of the mold become extremely difficult. Therefore, it is an object of the present invention to provide a structure of an optical connector molding die and a core used for the same, which does not require changing the shape of the small holes on the way and has high mutual positional accuracy.
【０００４】[0004]
【課題を解決するための手段】本発明は、上金型１と下
金型２の間に中子３を挟み、金型の間に樹脂を注入して
相互の位置精度の高い複数の細穴を有する光コネクタを
成形するための金型であって、上金型１の内面は平面に
形成され、外側から内側にあけられた樹脂注入口１２
と、注入された樹脂を蓄積するため内側に設けられたキ
ャビティ１１と、キャビティ１１から外周にむかって設
けられた溝１４とを備え、下金型２の内面は平面に形成
され、注入された樹脂を蓄積するため内側に設けられた
キャビティ２１と、キャビティ２１から外周にむかって
設けられた溝２４と、キャビティ２１について溝２４と
反対側で下金型２の内側に平行に設けられた複数本の細
ピン用Ｖ溝２２と、注入口１２とキャビティ２１とを連
絡するために設けられた樹脂流路２６と、キャビティ２
１の両側に設けられた太ピン用Ｖ溝２３とを備えたこと
を特徴とする。According to the present invention, a core 3 is sandwiched between an upper mold 1 and a lower mold 2 and a resin is injected between the molds so that a plurality of fine molds having high mutual positional accuracy can be obtained. A mold for molding an optical connector having a hole, wherein an inner surface of an upper mold 1 is formed into a flat surface, and a resin injection port 12 opened from the outside to the inside.
And a cavity 14 provided inside for accumulating the injected resin and a groove 14 provided from the cavity 11 toward the outer periphery, and the inner surface of the lower mold 2 is formed into a flat surface and injected. A cavity 21 provided inside for accumulating resin, a groove 24 provided from the cavity 21 toward the outer periphery, and a plurality of parallel provided inside the lower mold 2 on the opposite side of the cavity 21 from the groove 24. V-groove 22 for a thin pin of the book, resin flow path 26 provided for connecting injection port 12 and cavity 21, and cavity 2
1 and V grooves 23 for thick pins provided on both sides of 1.
【０００５】本発明の他の構成は、前記金型について細
ピン用Ｖ溝２２の両側にガイドピン用のＶ溝２７を設け
たことを特徴とする。Another structure of the present invention is characterized in that V-grooves 27 for guide pins are provided on both sides of the V-groove 22 for thin pins in the die.
【０００６】前記の金型は、Ｖ溝角度を６０゜±１５゜
以内とし、中子に設けられた細ピン５、ガイドピン９あ
るいは太ピン４を細ピン用Ｖ溝２２、ガイドピン用Ｖ溝
２７あるいは太ピン用溝２３と上金型１の平面で挟み、
上下金型を型締めして互いに微小変形させ、変形量をＶ
溝加工の精度と中子ピンの製作のばらつきをカバーする
範囲に設定し、変形領域を金型及び中子ピンの弾性限度
内としたこと特徴とする。In the above-mentioned mold, the V groove angle is within 60 ° ± 15 °, and the thin pin 5, the guide pin 9 or the thick pin 4 provided on the core is used as the thin pin V groove 22 and the guide pin V. Sandwiched between the groove 27 or the thick pin groove 23 and the plane of the upper mold 1,
The upper and lower molds are clamped to slightly deform each other, and the deformation amount is V
It is characterized in that the range of deformation is set within the elastic limit of the mold and the core pin by setting the range to cover the accuracy of groove processing and the variation in the manufacture of the core pin.
【０００７】また、本発明は、上金型１と下金型２の間
に中子３を挟み、金型の間に樹脂を注入して相互の位置
精度の高い複数の細穴を有する光コネクタを成形するた
めの中子であって、平行に配置された複数本の細ピン５
と、細ピン５の両側から離して配置された太ピン４とが
固定部３１に把持され、細ピン５は腕３２によって上下
から支持されたことを特徴とする特徴とする。Further, according to the present invention, a core 3 is sandwiched between an upper mold 1 and a lower mold 2, and a resin is injected between the molds to form a light having a plurality of small holes with high mutual positional accuracy. A plurality of thin pins 5 that are cores for molding the connector and are arranged in parallel
And the thick pin 4 arranged apart from both sides of the thin pin 5 are gripped by the fixing portion 31, and the thin pin 5 is supported by the arm 32 from above and below.
【０００８】さらに、本発明の他の構成は、前記の中子
について、細ピン５の両側にガイドピン９を設けたこと
を特徴とする。Another structure of the present invention is characterized in that guide pins 9 are provided on both sides of the thin pin 5 in the core.
【０００９】[0009]
【作用】上記の構成によれば、本発明の金型は中子に設
けられた細ピン５、ガイドピン９あるいは太ピン４を細
ピン用Ｖ溝２２、ガイドピン用Ｖ溝２７あるいは太ピン
用溝２３と上金型１の平面で挟み、上下金型を型締めし
て互いに微小変形させるので、ピン相互間の位置精度が
向上し、また、ピンやＶ溝の加工誤差が生じてもその影
響を低減させる作用がある。本発明の中子は細ピン５及
び太ピン４の一端を固定部３１で把持する構成としてい
るので、１つのピンに段差を設ける必要がなく、金型及
び中子の構成が簡単となり、製作が容易となる。According to the above construction, in the mold of the present invention, the thin pin 5, the guide pin 9 or the thick pin 4 provided on the core is provided with the thin pin V groove 22, the guide pin V groove 27 or the thick pin. Since the upper and lower dies are clamped by sandwiching the groove 23 for use with the plane of the upper mold 1 to slightly deform each other, the positional accuracy between the pins is improved, and even if a machining error occurs in the pin or the V groove. It has the effect of reducing the effect. Since the core of the present invention is configured such that one end of the thin pin 5 and one end of the thick pin 4 are held by the fixing portion 31, it is not necessary to provide a step on one pin, and the structure of the mold and the core is simplified, Will be easier.
【００１０】[0010]
【実施例】以下、添付図面を参照して本発明の実施例を
説明する。なお、図面の説明において同一要素には同一
符号を付し、重複する説明を省略する。図１は本実施例
に係わる金型１、２及び中子３の構成を示す斜視図であ
る。図において、上金型１と下金型２の間に中子３を挟
み、金型の間に樹脂を注入して相互の位置精度の高い複
数の細穴を有する光コネクタを成形するための金型であ
って、Embodiments of the present invention will be described below with reference to the accompanying drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description. FIG. 1 is a perspective view showing the structures of the molds 1 and 2 and the core 3 according to this embodiment. In the figure, a core 3 is sandwiched between an upper mold 1 and a lower mold 2, and a resin is injected between the molds to form an optical connector having a plurality of small holes with high mutual positional accuracy. A mold,
【００１１】上金型１の内面は平面に形成され、外側か
ら内側にあけられた樹脂注入口１２と、注入された樹脂
を蓄積するため内側に設けられたキャビティ１１と、中
子３の支持腕３２ａを収納するためにキャビティ１１か
ら外周にむかって設けられた溝１４とを備え、下金型２
の内面は平面に形成され、注入された樹脂を蓄積するた
め内側に設けられたキャビティ２１と、中子３の支持腕
３２ｂを収納するためにキャビティ２１から外周にむか
って設けられた溝２４と、キャビティ２１について溝２
４と反対側で下金型２の内側に平行に設けられた複数本
の細ピン用Ｖ溝２２と、注入口１２とキャビティ２１と
を連絡するために設けられたＵ溝形の樹脂流路２６と、
キャビティ２１の両側に設けられた太ピン用Ｖ溝２３と
を備えている。The inner surface of the upper mold 1 is formed into a flat surface, the resin injection port 12 opened from the outside to the inside, the cavity 11 provided inside for accumulating the injected resin, and the core 3 are supported. The lower mold 2 is provided with a groove 14 that is provided from the cavity 11 toward the outer periphery to accommodate the arm 32a.
An inner surface of the cavity is formed flat and has a cavity 21 provided inside for accumulating the injected resin, and a groove 24 provided to the outer periphery from the cavity 21 for accommodating the support arm 32b of the core 3. , Cavity 21 groove 2
4, a plurality of V grooves 22 for thin pins provided in parallel inside the lower mold 2 on the side opposite to 4, and a U-groove-shaped resin channel provided to connect the injection port 12 and the cavity 21. 26,
It is provided with thick pin V grooves 23 provided on both sides of the cavity 21.
【００１２】また、中子３は、平行に配置された複数本
の細ピン５と、細ピン５の両側から離して配置された太
ピン４とが固定部３１に把持され、細ピン５は腕３２に
よって上下から支持されている。複数本の細ピン５及び
太ピン４ａ，４ｂは夫々細ピン用Ｖ溝２２及び太ピン用
Ｖ溝２３ａ、２３ｂの中に配置され、平面に形成された
上金型１によって締め付けて固定される。細ピン５は支
持腕３２ｂの表面に設けられたＶ溝によって位置決めさ
れ、細ピン用Ｖ溝２２と同一間隔・同一高さになるよう
にしている。太ピン４ａ，４ｂは中子３を金型に位置決
めする時の基準となるもので、直径３ｍｍの超硬合金を
使用した。Further, in the core 3, a plurality of thin pins 5 arranged in parallel and a thick pin 4 arranged apart from both sides of the thin pin 5 are held by the fixing portion 31, and the thin pin 5 is It is supported from above and below by the arm 32. The plurality of thin pins 5 and the thick pins 4a and 4b are arranged in the thin pin V groove 22 and the thick pin V grooves 23a and 23b, respectively, and fastened and fixed by the upper die 1 formed on a flat surface. . The thin pins 5 are positioned by the V-grooves provided on the surface of the support arm 32b so as to have the same spacing and height as the V-grooves 22 for thin pins. The thick pins 4a and 4b serve as a reference when positioning the core 3 in the mold, and are made of cemented carbide having a diameter of 3 mm.
【００１３】この状態で樹脂注入口１２から圧入された
樹脂は、流路２６を通ってキャビティ１１、２１に進入
する。キャビティの中には細ピン５と支持腕３２ａ、３
２ｂの先端部分が配置されている。支持腕３２ａ、３２
ｂの先端部分はテープファイバの断面寸法より若干大き
くしている。このように形成された光コネクタ６は、図
３に示すように光ファイバ及びテープファイバを挿入し
て固定するための穴７及び角穴８が形成される。In this state, the resin press-fitted from the resin injection port 12 enters the cavities 11 and 21 through the flow path 26. The thin pin 5 and the support arms 32a, 3 are in the cavity.
The tip portion of 2b is arranged. Support arms 32a, 32
The tip portion of b is made slightly larger than the cross-sectional dimension of the tape fiber. The optical connector 6 thus formed is provided with holes 7 and square holes 8 for inserting and fixing optical fibers and tape fibers, as shown in FIG.
【００１４】次に、本発明の基本的な考え方を説明す
る。図４（イ）は細ピン５ａ、５ｂ、５ｃ及び太ピン４
ａを配し、上下金型１、２を合わせ、どこも変形させず
に接触した状態図、図４（ロ）は上下金型１、２を型締
して微小変形させた状態図である。ＣＡは上下金型１、
２を型合わせしてできる細ピン５ａ側の金型間隙、ＣＢ
は同じく太ピン４ａ側の金型間隙である。Ｃ1 〜Ｃ4 は
上下金型１、２を型合わせした時のピンと上金型１の平
面とのなす間隙であり、Ｖ溝の角度は６０°である。Next, the basic idea of the present invention will be described. FIG. 4A shows thin pins 5a, 5b, 5c and thick pin 4.
FIG. 4B shows a state in which a is arranged and the upper and lower molds 1 and 2 are brought into contact with each other without being deformed, and the upper and lower molds 1 and 2 are clamped and slightly deformed. CA is the upper and lower mold 1,
Mold gap on the side of the thin pin 5a, which can be formed by combining 2 molds, CB
Is also the mold gap on the side of the thick pin 4a. C 1 to C 4 are gaps formed by the pins and the flat surface of the upper mold 1 when the upper and lower molds 1 and 2 are matched, and the angle of the V groove is 60 °.
【００１５】間隙ＣＡ，ＣＢ及びＣ1 〜Ｃ4 の量は、上
下金型１、２をプレスにより型締した場合、図４（ロ）
に示すように、細ピン５ａ、５ｂ、５ｃ及び太ピン４ａ
がＶ溝及び上金型１の平面で変形することで、上記すべ
ての間隙が０、即ち密着に近い状態にすることが望まし
い。この変形は、ヘルツ接触における弾性限度内である
ことが望ましい。本実施例では、これらのピンは超硬合
金、上下金型１、２は合金鋼を使用した。分かりやすく
するために、ＣＡ＝ＣＢとし、Ｖ溝と平面がなす三角形
は正三角形と仮定する。この条件では、すべてのピン
は、金型密着時の仮想線から突出した量の２／３だけ下
方へ移動する。これは、Ｖ溝の深さ精度誤差を１／３に
することになる。この精度を確保するために、Ｖ溝は６
０°±１５°以内に形成することが好ましい。The amounts of the gaps CA, CB and C 1 to C 4 are as shown in FIG. 4B when the upper and lower molds 1 and 2 are clamped by a press.
As shown in, thin pins 5a, 5b, 5c and thick pin 4a
Is deformed in the V-groove and the plane of the upper mold 1, so that it is desirable that all the above-mentioned gaps be 0, that is, close to the close contact. This deformation is preferably within the elastic limit for Hertzian contact. In this embodiment, these pins are made of cemented carbide, and the upper and lower molds 1 and 2 are made of alloy steel. For the sake of clarity, it is assumed that CA = CB and that the triangle formed by the V groove and the plane is an equilateral triangle. Under this condition, all the pins move downward by ⅔ of the amount projected from the imaginary line at the time of mold contact. This reduces the V groove depth accuracy error to 1/3. In order to secure this accuracy, the V groove is 6
It is preferably formed within 0 ° ± 15 °.
【００１６】また、仮想線を変えれば、移動量をコント
ロールできることで、異なる成形穴寸法を得るため、Ｖ
溝加工の加工軸を上下に変化させる時にでやすいサイズ
間の誤差を調整できることである。これは平面段差のコ
ントロールであり、サブμｍの精度で可能である。By changing the imaginary line, the amount of movement can be controlled, so that different molding hole sizes can be obtained.
It is possible to adjust the error between sizes which is easy when changing the machining axis of the groove machining up and down. This is the control of the level difference in the plane, and is possible with the accuracy of sub μm.
【００１７】さらに、型締め間隙があっても、すべての
ピンが接触した時点からピン相互の位置関係は変化しな
いことである。これは、ピン径の誤差や、ピン径の小さ
な変更によってその都度Ｖ溝を加工しなおす必要がない
ということである。本発明の他の特長は、細ピン５及び
太ピン４の一端を固定部３１で把持しているので、１つ
のピンに段差を設ける必要がなく、金型及び中子の構成
が簡単となり、製作が容易となる。Further, even if there is a mold clamping gap, the positional relationship between the pins does not change from the time when all the pins come into contact with each other. This means that it is not necessary to rework the V groove each time due to an error in the pin diameter or a small change in the pin diameter. Another feature of the present invention is that one end of each of the thin pin 5 and the thick pin 4 is gripped by the fixing portion 31, so that it is not necessary to provide a step on one pin, and the structure of the mold and the core is simplified. Easy to manufacture.
【００１８】図５（イ）は図１の金型と中子によって形
成された光コネクタ６の正面図である。図５（ロ）はこ
の光コネクタの光ファイバ穴７の両側にガイドピン穴１
０を設けた場合の正面図である。図２は図５（ロ）に示
した形状の光コネクタを得るための上金型１、下金型２
及び中子３の構成を示す斜視図である。原則的には図１
の構成と同じであり、図１の下金型２に対して細ピン用
Ｖ溝２２の両側にガイドピン用Ｖ溝２７を追加し、ま
た、図１の中子３に対して細ピン５の両側にガイドピン
９ａ、９ｂを追加したものである。FIG. 5A is a front view of the optical connector 6 formed by the mold and core of FIG. FIG. 5B shows guide pin holes 1 on both sides of the optical fiber hole 7 of this optical connector.
It is a front view at the time of providing 0. FIG. 2 shows an upper mold 1 and a lower mold 2 for obtaining the optical connector having the shape shown in FIG.
FIG. 3 is a perspective view showing a configuration of a core 3; Figure 1 in principle
1 has the same configuration as that of FIG. 1 except that guide pin V grooves 27 are added to both sides of the thin pin V groove 22 in the lower mold 2 of FIG. Guide pins 9a and 9b are added to both sides of the.
【００１９】この金型及び中子によって形成された光フ
ァイバ穴７及びガイドピン穴１０の位置は、図５（ロ）
に示すようにその一方は上金型１の平面に配置する。そ
のために、ピンの位置は上下方向に非対称形となる。こ
のようなコネクタによって接続する場合は、上下を反対
に接続することができないので、誤接続を防止できる特
長がある。The positions of the optical fiber hole 7 and the guide pin hole 10 formed by this mold and core are shown in FIG.
One of them is arranged on the plane of the upper mold 1, as shown in FIG. Therefore, the position of the pin is asymmetric in the vertical direction. When connecting with such a connector, it is not possible to connect the upper and lower sides in reverse, so there is a feature that erroneous connection can be prevented.
【００２０】[0020]
【発明の効果】以上説明したように、本発明の金型は、
中子に設けられた細ピン５、ガイドピン９あるいは太ピ
ン４を細ピン用Ｖ溝２２、ガイドピン用Ｖ溝２７あるい
は太ピン用溝２３と上金型１の平面で挟み、上下金型を
型締めして互いに微小変形させるので、ピン相互間の位
置精度が向上し、また、ピンやＶ溝の加工誤差が生じて
もその影響を低減させる効果がある。本発明の中子は細
ピン５及び太ピン４の一端を固定部３１で把持する構成
とているので、１つのピンに段差を設ける必要がなく、
金型及び中子の構成が簡単となり、製作が容易となる。As described above, the mold of the present invention is
The thin pin 5, the guide pin 9, or the thick pin 4 provided on the core is sandwiched between the thin pin V groove 22, the guide pin V groove 27 or the thick pin groove 23 and the plane of the upper mold 1, and the upper and lower molds are formed. Since the molds are clamped and slightly deformed with each other, the positional accuracy between the pins is improved, and even if a machining error of the pin or the V groove occurs, its effect is reduced. Since the core of the present invention has a configuration in which one ends of the thin pin 5 and the thick pin 4 are held by the fixing portion 31, it is not necessary to provide a step on one pin,
The structure of the mold and the core becomes simple, and the manufacture becomes easy.
【図１】本実施例に係わる金型及び中子の構成を示す斜
視図である。FIG. 1 is a perspective view showing a configuration of a mold and a core according to this embodiment.
【図２】他の実施例に係わる金型及び中子の構成を示す
斜視図である。FIG. 2 is a perspective view showing a configuration of a mold and a core according to another embodiment.
【図３】成形された光コネクタの構成を示す斜視図であ
る。FIG. 3 is a perspective view showing a configuration of a molded optical connector.
【図４】本発明の基本的な考え方を示すための説明図で
ある。FIG. 4 is an explanatory diagram showing a basic idea of the present invention.
【図５】成形された光コネクタの構成を示す正面図であ
る。FIG. 5 is a front view showing the configuration of a molded optical connector.
１：上金型 ２：下金型 ３：中子 ４：太ピン ５：細ピン ６：光コネクタ ７：光ファイバ穴 ８：テープファイバ角穴 ９：ガイドピン １０：ガイドピン穴 １１、２１：キャビティ １２：樹脂注入口 １３：金型嵌合ピン穴 １４、２４：腕部収納溝 ２２：細ピン用Ｖ溝 ２３：太ピン用Ｖ溝 ２５：金型嵌合ピン ２６：樹脂流路 ２７：ガイドピン用Ｖ溝 ３１：固定部 ３２：細ピン支持腕 1: Upper mold 2: Lower mold 3: Core 4: Thick pin 5: Thin pin 6: Optical connector 7: Optical fiber hole 8: Tape fiber square hole 9: Guide pin 10: Guide pin hole 11, 21: Cavity 12: Resin injection port 13: Mold fitting pin hole 14, 24: Arm storing groove 22: V groove for thin pin 23: V groove for thick pin 25: Mold fitting pin 26: Resin flow path 27: V groove for guide pin 31: fixed part 32: thin pin support arm
Claims (8)
み、金型の間に樹脂を注入して相互の位置精度の高い複
数の細穴を有する光コネクタを成形するための金型であ
って、 上金型１の内面は平面に形成され、外側から内側にあけ
られた樹脂注入口１２と、注入された樹脂を蓄積するた
め内側に設けられたキャビティ１１と、キャビティ１１
から外周にむかって設けられた溝１４とを備え、 下金型２の内面は平面に形成され、注入された樹脂を蓄
積するため内側に設けられたキャビティ２１と、キャビ
ティ２１から外周にむかって設けられた溝２４と、キャ
ビティ２１について溝２４と反対側で下金型２の内側に
平行に設けられた複数本の細ピン用Ｖ溝２２と、注入口
１２とキャビティ２１とを連絡するために設けられた樹
脂流路２６と、キャビティ２１の両側に設けられた太ピ
ン用Ｖ溝２３とを備えたことを特徴とする光コネクタ成
形用金型。1. A core 3 is sandwiched between an upper mold 1 and a lower mold 2, and a resin is injected between the molds to form an optical connector having a plurality of small holes with high mutual positional accuracy. And a cavity 11 provided inside for accumulating the injected resin, and a resin injection port 12 opened from the outside to the inside, Cavity 11
To the outer circumference, the inner surface of the lower mold 2 is formed into a flat surface, and the cavity 21 is provided inside for accumulating the injected resin, and from the cavity 21 to the outer circumference. To connect the provided groove 24, the plurality of thin pin V grooves 22 provided in parallel to the inside of the lower mold 2 on the side opposite to the groove 24 with respect to the cavity 21, the injection port 12 and the cavity 21. An optical connector molding die, comprising: a resin flow path 26 provided in the cavity 21; and thick pin V grooves 23 provided on both sides of the cavity 21.
のＶ溝２７を設けたことを特徴とする請求項１の光コネ
クタ成形用金型。2. The optical connector molding die according to claim 1, wherein V grooves 27 for guide pins are provided on both sides of the V groove 22 for thin pins.
とを特徴とする請求項１または２に記載の光コネクタ成
形用金型。3. The optical connector molding die according to claim 1, wherein the V groove angle is within 60 ° ± 15 °.
９あるいは太ピン４を細ピン用Ｖ溝２２、ガイドピン用
Ｖ溝２７あるいは太ピン用溝２３と上金型１の平面で挟
み、上下金型を型締めして互いに微小変形させることを
特徴とする請求項１〜３のいずれかに記載の光コネクタ
成形用金型。4. The thin pin 5, the guide pin 9, or the thick pin 4 provided on the core is formed by the V groove 22 for the thin pin, the V groove 27 for the guide pin or the groove 23 for the thick pin, and the plane of the upper mold 1. The optical connector molding die according to any one of claims 1 to 3, wherein the die is clamped and the upper and lower dies are clamped to slightly deform each other.
作のばらつきをカバーする範囲に設定することを特徴と
する請求項４に記載の光コネクタ成形用金型。5. The optical connector molding die according to claim 4, wherein the deformation amount is set in a range that covers the accuracy of the V-groove processing and the variation in the manufacturing of the core pin.
内としたことを特徴とする請求項４に記載の光コネクタ
成形用金型。6. The optical connector molding die according to claim 4, wherein the deformation region is within the elastic limit of the die and the core pin.
み、金型の間に樹脂を注入して相互の位置精度の高い複
数の細穴を有する光コネクタを成形するための中子であ
って、 平行に配置された複数本の細ピン５と、細ピン５の両側
から離して配置された太ピン４とが固定部３１に把持さ
れ、細ピン５は腕３２によって上下から支持されたこと
を特徴とする光コネクタ成形用中子。7. A core 3 is sandwiched between an upper mold 1 and a lower mold 2, and a resin is injected between the molds to mold an optical connector having a plurality of small holes with high mutual positional accuracy. A plurality of thin pins 5 arranged in parallel and thick pins 4 arranged apart from both sides of the thin pin 5 are gripped by the fixing portion 31, and the thin pin 5 is held by the arm 32. A core for molding an optical connector, which is supported from above and below by.
ことを特徴とする請求項７の光コネクタ成形用中子。8. The core for molding an optical connector according to claim 7, wherein guide pins 9 are provided on both sides of the thin pin 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31811194A JP3312511B2 (en) | 1994-12-21 | 1994-12-21 | Optical connector molding die and core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31811194A JP3312511B2 (en) | 1994-12-21 | 1994-12-21 | Optical connector molding die and core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08179161A true JPH08179161A (en) | 1996-07-12 |
| JP3312511B2 JP3312511B2 (en) | 2002-08-12 |
Family
ID=18095619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31811194A Expired - Lifetime JP3312511B2 (en) | 1994-12-21 | 1994-12-21 | Optical connector molding die and core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3312511B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6287017B1 (en) | 1996-12-19 | 2001-09-11 | Sumitomo Electric Industries, Ltd. | Optical connector ferrule, method of manufacturing the same, and optical connector using the same |
| JP2002350685A (en) * | 2001-05-29 | 2002-12-04 | Furukawa Electric Co Ltd:The | Method of manufacturing optical connector ferrule |
| US6695488B2 (en) | 2001-07-19 | 2004-02-24 | Cinch Connectors, Inc. | Tool and method for forming a multi fiber ferrule |
| JP2007041044A (en) * | 2005-07-29 | 2007-02-15 | Sumitomo Electric Ind Ltd | Method of molding optical connecting component, and optical connecting component |
| KR200490967Y1 (en) * | 2018-08-07 | 2020-03-02 | 주식회사 에이제이월드 | Appartus for collecting optical cable |
-
1994
- 1994-12-21 JP JP31811194A patent/JP3312511B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6287017B1 (en) | 1996-12-19 | 2001-09-11 | Sumitomo Electric Industries, Ltd. | Optical connector ferrule, method of manufacturing the same, and optical connector using the same |
| JP2002350685A (en) * | 2001-05-29 | 2002-12-04 | Furukawa Electric Co Ltd:The | Method of manufacturing optical connector ferrule |
| US6695488B2 (en) | 2001-07-19 | 2004-02-24 | Cinch Connectors, Inc. | Tool and method for forming a multi fiber ferrule |
| US6848870B2 (en) | 2001-07-19 | 2005-02-01 | Cinch Connectors, Inc. | Tool and method for forming a multifiber ferrule |
| JP2007041044A (en) * | 2005-07-29 | 2007-02-15 | Sumitomo Electric Ind Ltd | Method of molding optical connecting component, and optical connecting component |
| JP4544086B2 (en) * | 2005-07-29 | 2010-09-15 | 住友電気工業株式会社 | Molding method of optical connection parts |
| KR200490967Y1 (en) * | 2018-08-07 | 2020-03-02 | 주식회사 에이제이월드 | Appartus for collecting optical cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3312511B2 (en) | 2002-08-12 |
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