JP3101011B2 - Multi-component mixed resin molding method and apparatus - Google Patents
Multi-component mixed resin molding method and apparatusInfo
- Publication number
- JP3101011B2 JP3101011B2 JP18925791A JP18925791A JP3101011B2 JP 3101011 B2 JP3101011 B2 JP 3101011B2 JP 18925791 A JP18925791 A JP 18925791A JP 18925791 A JP18925791 A JP 18925791A JP 3101011 B2 JP3101011 B2 JP 3101011B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- pressure
- component
- mixed
- components
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は多成分混合樹脂成形方
法およびその装置の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for molding a multi-component resin mixture and an improvement of the apparatus.
【０００２】[0002]
【従来の技術】強化プラスチック成形品を製造するに際
して、例えばレジンインジェクション法と呼ばれる方法
が用いられる。2. Description of the Related Art When manufacturing a reinforced plastic molded product, for example, a method called a resin injection method is used.
【０００３】この方法は、成形型のキャビティ内に、予
めガラスマットやナイロンなどの強化材を装填し、型締
めしたのち該キャビティ内に成形樹脂材料を注入し前記
強化材に樹脂材料を含浸させて一体に硬化するものであ
る。According to this method, a reinforcing material such as glass mat or nylon is charged in a cavity of a molding die in advance, the mold is clamped, a molding resin material is injected into the cavity, and the reinforcing material is impregnated with the resin material. And harden integrally.
【０００４】しかるに、キャビティ内に装填されるガラ
スマットやナイロンなどの強化材は、例えばその線状体
を圧縮成形して塊状体としたもので、その添加量は成形
品全体の３０％〜７０％に上るため、成形樹脂材料のキ
ャビティへの注入には格別の困難性があった。[0004] However, the reinforcing material such as glass mat or nylon to be loaded into the cavity is, for example, obtained by compression molding a linear body into a lump, and the amount of addition is 30% to 70% of the whole molded article. %, There is a particular difficulty in injecting the molding resin material into the cavity.
【０００５】すなわち、強化材の塊状体が装填されたキ
ャビティ内へ樹脂材料をまんべんなく注入するために
は、樹脂材料に大きな圧力を加えて圧入するか、あるい
は長い時間をかけてゆっくりと注入しなければならな
い。That is, in order to uniformly inject the resin material into the cavity filled with the mass of the reinforcing material, a large pressure must be applied to the resin material, or the resin material must be slowly injected over a long time. Must.
【０００６】しかしながら、前者の方法では、注型時の
圧力が金型と型締機（クランプ装置）の耐えうる圧力
（限界圧力）以下でなければならず、この限界圧力を越
えると金型が破損したり、型締めが維持できなくなくて
開いてしまうといったトラブルが発生する。However, in the former method, the pressure at the time of casting must be lower than the pressure (limit pressure) that the mold and the mold clamping machine (clamping device) can withstand. Troubles such as breakage and opening due to failure to maintain mold clamping occur.
【０００７】そこで、従来では、長い時間をかけて樹脂
材料をゆっくりと圧力を上げてキャビティ内に注入して
いるのであるが、このために、樹脂自体の硬化速度も遅
くしなけばならず（速く硬化させるとキャビティ内に充
満する前に硬化してしまう）、結局長い成形サイクルを
必要とし、生産効率上の問題があった。Therefore, conventionally, the resin material is slowly injected into the cavity by slowly increasing the pressure over a long period of time. For this reason, the curing speed of the resin itself must be reduced. If it cures quickly, it cures before it fills the cavities), which eventually requires a long molding cycle and has a problem in production efficiency.
【０００８】また、注型につれて樹脂材料の注入圧力が
増すことにより樹脂の吐出圧も増加するためポンプの定
量性が損なわれ、設定流量に狂いが生じ品質上の問題を
生ずるおそれもある。Further, as the injection pressure of the resin material increases as the resin is poured, the discharge pressure of the resin also increases, so that the quantitativeness of the pump is impaired, and the set flow rate may be deviated to cause a quality problem.
【０００９】[0009]
【発明が解決しようとする課題】この発明は、上記した
問題点に鑑み提案されたものであって、強化材が装填さ
れた成形型内に樹脂材料を注型するに際し、確実にかつ
効率良く短時間で行うことができ、もってその品質およ
び生産効率を向上させることができる新規な方法および
装置を提供しようとするものである。DISCLOSURE OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems, and is intended to reliably and efficiently cast a resin material into a molding die loaded with a reinforcing material. It is an object of the present invention to provide a novel method and apparatus which can be performed in a short time and thereby improve the quality and production efficiency.
【００１０】[0010]
【課題を解決するための手段】ここで提案される発明に
は二つあり、第一は成形方法に関し、第二はその成形装
置に関する。すなわち、第一の発明は、複数の樹脂成分
を各注入口のノズルを介して混合室に注入して混合し、
その混合成分を強化材が装填された成形型内に注型する
に際し、前記混合樹脂成分を成形型の限界圧力よりすぐ
下の制御圧力を維持して成形型内に注入するとともに、
前記制御圧力の維持によって変化する各樹脂成分の流量
変化に対応して、各樹脂成分の混合室内への注入圧を一
定に保つようにノズル位置を制御することを特徴とする
多成分混合樹脂成形方法に係る。There are two inventions proposed here, the first relates to a molding method, and the second relates to a molding apparatus. That is, in the first invention, a plurality of resin components are injected into the mixing chamber through the nozzle of each injection port and mixed,
Upon casting the mixed component into the mold loaded with the reinforcing material, while injecting the mixed resin component into the mold while maintaining the control pressure just below the critical pressure of the mold,
Multi-component mixed resin molding, wherein the nozzle position is controlled so as to maintain a constant injection pressure of each resin component into the mixing chamber in response to a change in the flow rate of each resin component that is changed by maintaining the control pressure. According to the method.
【００１１】また、第二の発明は、複数の樹脂成分を各
注入口のノズルを介して混合室に注入して混合し、その
混合成分を強化材が装填された成形型内に注型する装置
において、前記成形型内に設けられた混合成分の注型圧
力を検知する圧力センサーと、前記注型圧力センサーの
信号に応じて所定の注型圧力を維持するために前記各樹
脂成分の流量を決定する各樹脂成分の差動アンプと、前
記各樹脂成分の混合室への注入圧力を検知する圧力セン
サーと、前記各樹脂成分の注入圧力センサーの信号に応
じて所定の注入圧力を維持するために各樹脂成分のノズ
ルの開閉量を決定する各樹脂成分の差動アンプとからな
ることを特徴とする多成分混合樹脂成形装置に係る。According to a second aspect of the present invention, a plurality of resin components are injected into a mixing chamber through nozzles of respective injection ports and mixed, and the mixed components are cast into a molding die loaded with a reinforcing material. In the apparatus, a pressure sensor that detects a casting pressure of the mixed component provided in the molding die, and a flow rate of each of the resin components in order to maintain a predetermined casting pressure according to a signal of the casting pressure sensor. A differential amplifier for each resin component that determines the pressure, a pressure sensor for detecting the injection pressure of each resin component into the mixing chamber, and maintaining a predetermined injection pressure according to a signal from the injection pressure sensor for each resin component Therefore, the present invention relates to a multi-component mixed resin molding apparatus, which comprises a differential amplifier for each resin component that determines the opening / closing amount of the nozzle for each resin component.
【００１２】[0012]
【実施例】以下添付の図面に従ってこの発明を詳細に説
明する。図１はこの発明の多成分混合樹脂成形方法を実
施する装置の一例を示す概略断面図、図２は金型への樹
脂材料の充填量と吐出時間との関係を表すグラフ、図３
は吐出流量と吐出時間との関係を表すグラフ、図４は金
型内圧と吐出時間との関係を表すグラフである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic sectional view showing an example of an apparatus for carrying out the multi-component mixed resin molding method of the present invention. FIG. 2 is a graph showing the relationship between the amount of resin material filled in a mold and the discharge time.
Is a graph showing the relationship between the discharge flow rate and the discharge time, and FIG. 4 is a graph showing the relationship between the mold internal pressure and the discharge time.
【００１３】図１に示したように、この発明の多成分混
合樹脂成形装置１０は、ポリウレタンやナイロンあるい
はポリエステルなどの樹脂材料に触媒や硬化剤を添加し
て製造される二液混合性の樹脂成形に係り、混合された
樹脂材料は下型６１と上型６２とからなる成形型６０に
注型される。As shown in FIG. 1, a multi-component mixed resin molding apparatus 10 of the present invention is a two-component mixed resin produced by adding a catalyst or a curing agent to a resin material such as polyurethane, nylon or polyester. During the molding, the mixed resin material is poured into a molding die 60 including a lower die 61 and an upper die 62.
【００１４】ポリウレタン等の多成分混合樹脂成形装置
１０は、複数の反応性樹脂成分（この実施例では２種）
Ｑ，Ｒを各注入口１１，１２に設置されたノズル１３，
１４を介して混合室１５内に注入して混合し、その混合
成分を前記成形型６０のキャビティ６３に導入するもの
である。符号１６は混合機本体、１７は前記各樹脂成分
の注入口１１，１２を開閉するとともに混合室１５内の
混合成分を成形型６０のキャビティ６３に吐出する切換
部材、１７Ａはそのシリンダ装置、１８，１９はノズル
１３，１４を前後動する弁部材である。符号６９はガラ
スマットなどの補強材で、予め成形型キャビティ６９に
装填されている。The apparatus 10 for molding a multi-component mixed resin such as polyurethane comprises a plurality of reactive resin components (two in this embodiment).
Q and R are connected to the nozzles 13 installed at the injection ports 11 and 12,
The mixture is injected into the mixing chamber 15 through the mixer 14 and mixed, and the mixed component is introduced into the cavity 63 of the mold 60. Reference numeral 16 denotes a mixer body, reference numeral 17 denotes a switching member that opens and closes the injection ports 11 and 12 of the respective resin components and discharges the mixed components in the mixing chamber 15 to the cavity 63 of the molding die 60, reference numeral 17A denotes a cylinder device thereof, and reference numeral 18A. , 19 are valve members for moving the nozzles 13, 14 back and forth. Reference numeral 69 denotes a reinforcing material such as a glass mat, which has been loaded in the mold cavity 69 in advance.
【００１５】この発明の成形装置１０は、成形型６０内
に設けられた圧力センサー２０と差動アンプ３０と前記
混合室１５への各樹脂成分の注型圧力を検知する圧力セ
ンサー４０，４１と前記混合室１５のノズル１３，１４
の開閉量を決定する差動アンプ５０，５１とから構成さ
れている。The molding apparatus 10 of the present invention includes a pressure sensor 20 and a differential amplifier 30 provided in a molding die 60, and pressure sensors 40 and 41 for detecting a casting pressure of each resin component into the mixing chamber 15. Nozzles 13 and 14 of the mixing chamber 15
And differential amplifiers 50 and 51 for determining the opening / closing amount of.
【００１６】圧力センサー２０は、成形型キャビティ６
３の樹脂吐出口６４に対向する位置に設けられていて、
成形型キャビティ６３内への注型樹脂圧力を検知する。
この圧力センサー２０によって検知された注型樹脂圧
は、図注破線で示すように、次述する差動アンプ３０に
伝達される。The pressure sensor 20 is connected to the mold cavity 6.
3 is provided at a position facing the resin discharge port 64,
The pressure of the resin injected into the mold cavity 63 is detected.
The casting resin pressure detected by the pressure sensor 20 is transmitted to a differential amplifier 30 described below, as indicated by a broken line in the drawing.
【００１７】差動アンプ３０は、制御指令装置３１によ
って成形型６０の限界圧力のすぐ下の制御圧力を維持す
るように設定されていて、前記圧力センサー２０からの
型内樹脂圧力の信号を取り込んで所定の圧力値になるよ
う成分の流量を連続的にコントロールする。この実施例
では、前記成形型６０の限界圧力は２０ｋｇ／ｃｍ2 で
制御圧力は１７ｋｇ／ｃｍ2 に設定されている。The differential amplifier 30 is set by the control command device 31 so as to maintain a control pressure just below the limit pressure of the molding die 60, and receives a signal of the in-mold resin pressure from the pressure sensor 20. To continuously control the flow rate of the components so as to obtain a predetermined pressure value. In this embodiment, the limit pressure of the mold 60 is set to 20 kg / cm 2 and the control pressure is set to 17 kg / cm 2 .
【００１８】この差動アンプ３０は演算器３５を備えて
いて、注入される成分数や配合比に応じて各樹脂成分
Ｑ，Ｒの流量を振り分けてそれぞれのポンプＰ１および
Ｐ２に指示する。なお、前記ポンプＰ１，Ｐ２が実施例
のようにモータポンプの場合は回転子の回転数を調整し
て流量が調整される。シリンダポンプの場合はピストン
の往復速度の調整によって流量が調節される。The differential amplifier 30 includes an arithmetic unit 35, which distributes the flow rates of the resin components Q and R according to the number of components to be injected and the mixing ratio, and instructs the respective pumps P1 and P2. When the pumps P1 and P2 are motor pumps as in the embodiment, the flow rate is adjusted by adjusting the rotation speed of the rotor. In the case of a cylinder pump, the flow rate is adjusted by adjusting the reciprocating speed of the piston.
【００１９】前記ポンプＰ１およびＰ２の回転数は流量
センサーＳ１，Ｓ２を有する差動アンプＡ１，Ａ２によ
って制御される。この差動アンプＡ１，Ａ２は前記流量
センサーＳ１，Ｓ２からの値を取り込んで、前記演算器
３５から指示された流量にしたがって流量調節し各樹脂
成分Ｑ，Ｒを成分フィードラインＬ１，Ｌ２に導入す
る。符号Ｍ１，Ｍ２は前記ポンプＰ１，Ｐ２の駆動モー
タ、Ｔ１，Ｔ２は各樹脂成分Ｑ，Ｒの成分タンクであ
る。The rotational speeds of the pumps P1 and P2 are controlled by differential amplifiers A1 and A2 having flow sensors S1 and S2. The differential amplifiers A1 and A2 take in the values from the flow rate sensors S1 and S2, adjust the flow rate according to the flow rate specified by the calculator 35, and introduce the resin components Q and R into the component feed lines L1 and L2. I do. Symbols M1 and M2 denote drive motors for the pumps P1 and P2, and T1 and T2 denote component tanks for the respective resin components Q and R.
【００２０】圧力センサー４０，４１は前記混合室１５
への成分注入圧力をそれぞれ検出し、後述する差動アン
プ５０，５１へ伝達するためのもので、図のように、前
記成分フィードラインＬ１，Ｌ２に設けられている。な
お、符号４２，４３は、成分戻りラインＬ３，Ｌ４に設
けられ樹脂成分の注入と同時に閉じられて該成分の逆流
を防止する戻りバルブ、４４，４６は前記戻りラインＬ
３，Ｌ４内の圧力を成分注入圧と同じになるように調整
する調整弁である。The pressure sensors 40 and 41 are connected to the mixing chamber 15.
These are for detecting the component injection pressures to the respective components and transmitting them to differential amplifiers 50 and 51, which will be described later, and are provided in the component feed lines L1 and L2 as shown in the figure. Reference numerals 42 and 43 are return valves provided on the component return lines L3 and L4 to be closed at the same time as the injection of the resin component to prevent backflow of the component.
3, an adjustment valve for adjusting the pressure in L4 to be equal to the component injection pressure.
【００２１】差動アンプ５０，５１は油圧サーボ弁５
２，５３を備えていて、あらかじめ前記制御指令装置３
１によって与えられた混合室１５への樹脂成分吐出圧力
の値を維持するように前記油圧サーボ弁５２，５３を開
閉して、前記注入口１１，１２に設置されたノズル１
３，１４の弁部材１８，１９を作動してその開閉量を制
御する。The differential amplifiers 50 and 51 are provided with the hydraulic servo valve 5
2 and 53, the control command device 3
1. The hydraulic servo valves 52 and 53 are opened and closed so as to maintain the value of the resin component discharge pressure to the mixing chamber 15 given by 1 and the nozzles 1 installed in the injection ports 11 and 12 are opened.
The opening and closing amounts of the valve members 18 and 19 are controlled by operating the valve members 18 and 19.
【００２２】前述したように、成形成分のキャビティ６
３内における成形成分の圧力を一定に保つためには、樹
脂圧の低い時には樹脂注型流量を増して圧力を維持し、
樹脂圧の高い時には樹脂流量を落として圧力を調整しな
ければならない。一方、この樹脂成分の注型流量を操作
すると、混合室１５内への樹脂成分の注入圧力が変動
し、混合室１５内における両樹脂成分の混合比率が変動
し、所期の混合が得られない。そこで、樹脂成分の注型
量に係わらず樹脂成分の混合室１５への吐出圧力を一定
に保つために、前記圧力センサー４０，４１からの圧力
信号に応じてノズル１３，１４の位置を調節して混合室
１５の注入口１１，１２の開閉量が制御されるのであ
る。As mentioned above, the cavity 6 of the molding component
In order to keep the pressure of the molding component constant in 3, when the resin pressure is low, the resin casting flow rate is increased to maintain the pressure,
When the resin pressure is high, the pressure must be adjusted by reducing the resin flow rate. On the other hand, when the casting flow rate of the resin component is operated, the injection pressure of the resin component into the mixing chamber 15 fluctuates, and the mixing ratio of the two resin components in the mixing chamber 15 fluctuates, whereby the desired mixing is obtained. Absent. Therefore, in order to keep the discharge pressure of the resin component into the mixing chamber 15 constant irrespective of the injection amount of the resin component, the positions of the nozzles 13 and 14 are adjusted according to the pressure signals from the pressure sensors 40 and 41. Thus, the opening and closing amounts of the inlets 11 and 12 of the mixing chamber 15 are controlled.
【００２３】図２ないし図４からよりよく理解されるよ
うに、樹脂成分Ｑ，Ｒは、成形型６０の限界圧力よりす
ぐ下の制御圧力に維持されてキャビティ６３内に注入さ
れる。注入初期においては、キャビティ６３内の抵抗が
低く従って樹脂圧力も低いため、ポンプ流量を上げて、
図３に示されるように吐出口６４からの樹脂成分の吐出
量を多くして制御圧力を維持するように働く。その際、
混合室１５内への樹脂成分の注入圧も一定に保つように
ノズル１３，１４の位置が調節される。さらに注入が進
んで、キャビティ６３内の抵抗が大きくなり樹脂圧力が
高くなると、徐々に樹脂成分の吐出量を減らして、キャ
ビティ内の圧力を制御する。この吐出量の変化に対応し
てノズル１３，１４を調整し混合室１５に注入される各
樹脂成分の圧力が維持される。このような工程によっ
て、図４から明らかなように、この発明では従来成形の
吐出時間と比較して大幅に短い時間で金型への充填を完
了することができる。As can be better understood from FIGS. 2 to 4, the resin components Q and R are injected into the cavity 63 while maintaining the control pressure just below the limit pressure of the mold 60. In the initial stage of the injection, the resistance in the cavity 63 is low, and the resin pressure is also low.
As shown in FIG. 3, the discharge amount of the resin component from the discharge port 64 is increased to maintain the control pressure. that time,
The positions of the nozzles 13 and 14 are adjusted so that the injection pressure of the resin component into the mixing chamber 15 is also kept constant. When the injection proceeds further and the resistance in the cavity 63 increases and the resin pressure increases, the discharge amount of the resin component is gradually reduced to control the pressure in the cavity. The nozzles 13 and 14 are adjusted according to the change in the discharge amount, and the pressure of each resin component injected into the mixing chamber 15 is maintained. By such a process, as is apparent from FIG. 4, in the present invention, the filling of the mold can be completed in a time significantly shorter than the discharge time of the conventional molding.
【００２４】[0024]
【発明の効果】以上図示し説明したように、この発明に
よれば、強化材が装填された成形型内に樹脂材料を注型
するに際し、確実にかつ効率良く短時間で行うことがで
き、製品の成形サイクルを短縮し、もってその品質およ
び生産効率を向上させることができるようになった。ま
た、この発明装置によれば、従来の成形装置および金型
をそのまま用いることができるので経済的である。As described above, according to the present invention, when a resin material is cast into a molding die loaded with a reinforcing material, it can be performed reliably and efficiently in a short time. It has become possible to shorten the molding cycle of a product, thereby improving its quality and production efficiency. Further, according to the apparatus of the present invention, the conventional molding apparatus and mold can be used as they are, which is economical.
【図１】この発明の多成分混合樹脂成形方法を実施する
装置の一例を示す概略断面図である。FIG. 1 is a schematic sectional view showing an example of an apparatus for carrying out a multi-component mixed resin molding method of the present invention.
【図２】金型内圧と吐出時間との関係を表すグラフであ
る。FIG. 2 is a graph showing a relationship between a mold inner pressure and a discharge time.
【図３】吐出流量と吐出時間との関係を表すグラフであ
る。FIG. 3 is a graph showing a relationship between a discharge flow rate and a discharge time.
【図４】金型への樹脂材料の充填量と吐出時間との関係
を表すグラフである。FIG. 4 is a graph showing a relationship between a filling amount of a resin material in a mold and a discharge time.
１０ 多成分混合樹脂成形装置 １１ 注入口 １２ 注入口 １３ ノズル １４ ノズル １５ 混合室 ２０ 圧力センサー ３０ 差動アンプ ４０ 圧力センサー ４１ 圧力センサー ５０ 差動アンプ ５１ 作動アンプ ５２ 油圧サーボ弁 ５３ 油圧サーボ弁 ６０ 成形機 DESCRIPTION OF SYMBOLS 10 Multi-component mixed resin molding apparatus 11 Injection port 12 Injection port 13 Nozzle 14 Nozzle 15 Mixing chamber 20 Pressure sensor 30 Differential amplifier 40 Pressure sensor 41 Pressure sensor 50 Differential amplifier 51 Operating amplifier 52 Hydraulic servo valve 53 Hydraulic servo valve 60 Molding Machine
Claims (3)
して混合室に注入して混合し、その混合成分を強化材が
装填された成形型内に注型するに際し、 前記混合樹脂成分を成形型の限界圧力よりすぐ下の制御
圧力を維持して成形型内に注入するとともに、 前記制御圧力の維持によって変化する各樹脂成分の流量
変化に対応して、各樹脂成分の混合室内への注入圧を一
定に保つようにノズル位置を制御する ことを特徴とする多成分混合樹脂成形方法。1. A method according to claim 1, wherein a plurality of resin components are injected into a mixing chamber through nozzles of respective injection ports and mixed, and when the mixed components are poured into a molding die loaded with a reinforcing material, the mixed resin components are mixed. While maintaining a control pressure just below the critical pressure of the molding die and injecting it into the molding die, and in response to a change in the flow rate of each resin component changed by maintaining the control pressure, into the mixing chamber of each resin component. A multi-component mixed resin molding method, characterized in that the nozzle position is controlled so that the injection pressure of the resin is kept constant.
して混合室に注入して混合し、その混合成分を強化材が
装填された成形型内に注型する装置において、 前記成形型内に設けられた混合成分の注型圧力を検知す
る圧力センサーと、 前記注型圧力センサーの信号に応じて所定の注型圧力を
維持するために前記各樹脂成分の流量を決定する各樹脂
成分の差動アンプと、 前記各樹脂成分の混合室への注入圧力を検知する圧力セ
ンサーと、 前記各樹脂成分の注入圧力センサーの信号に応じて所定
の注入圧力を維持するために各樹脂成分のノズルの開閉
量を決定する各樹脂成分の差動アンプ、 とからなることを特徴とする多成分混合樹脂成形装置。2. An apparatus for injecting a plurality of resin components into a mixing chamber through nozzles at respective injection ports to mix and cast the mixed components into a molding die loaded with a reinforcing material. A pressure sensor for detecting a casting pressure of a mixed component provided in the resin component, and a resin component for determining a flow rate of each of the resin components in order to maintain a predetermined casting pressure in accordance with a signal from the casting pressure sensor. A differential amplifier, a pressure sensor for detecting an injection pressure of each of the resin components into the mixing chamber, and a pressure sensor of each of the resin components for maintaining a predetermined injection pressure in accordance with a signal from the injection pressure sensor for each of the resin components. A multi-component mixed resin molding apparatus, comprising: a differential amplifier for each resin component that determines an opening / closing amount of a nozzle.
の開閉がサーボ弁によってなされる多成分混合樹脂成形
装置。3. The multi-component mixed resin molding apparatus according to claim 2, wherein a nozzle of each resin component is opened and closed by a servo valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18925791A JP3101011B2 (en) | 1991-07-02 | 1991-07-02 | Multi-component mixed resin molding method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18925791A JP3101011B2 (en) | 1991-07-02 | 1991-07-02 | Multi-component mixed resin molding method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH058233A JPH058233A (en) | 1993-01-19 |
| JP3101011B2 true JP3101011B2 (en) | 2000-10-23 |
Family
ID=16238271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18925791A Expired - Lifetime JP3101011B2 (en) | 1991-07-02 | 1991-07-02 | Multi-component mixed resin molding method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3101011B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6180232B1 (en) | 1995-06-21 | 2001-01-30 | 3M Innovative Properties Company | Overhead high power transmission cable comprising fiber reinforced aluminum matrix composite wire |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5553206B2 (en) * | 2010-02-22 | 2014-07-16 | 東レ株式会社 | RTM molding method |
-
1991
- 1991-07-02 JP JP18925791A patent/JP3101011B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6180232B1 (en) | 1995-06-21 | 2001-01-30 | 3M Innovative Properties Company | Overhead high power transmission cable comprising fiber reinforced aluminum matrix composite wire |
| US6245425B1 (en) | 1995-06-21 | 2001-06-12 | 3M Innovative Properties Company | Fiber reinforced aluminum matrix composite wire |
| US6336495B1 (en) | 1995-06-21 | 2002-01-08 | 3M Innovative Properties Company | Method of making fiber reinforced aluminum matrix composite wire |
| US6460597B1 (en) | 1995-06-21 | 2002-10-08 | 3M Innovative Properties Company | Method of making fiber reinforced aluminum matrix composite |
| US6544645B1 (en) | 1995-06-21 | 2003-04-08 | 3M Innovative Properties Company | Fiber reinforced aluminum matrix composite wire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH058233A (en) | 1993-01-19 |
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