JPS62278017A - Injection molder - Google Patents
Injection molderInfo
- Publication number
- JPS62278017A JPS62278017A JP12135186A JP12135186A JPS62278017A JP S62278017 A JPS62278017 A JP S62278017A JP 12135186 A JP12135186 A JP 12135186A JP 12135186 A JP12135186 A JP 12135186A JP S62278017 A JPS62278017 A JP S62278017A
- Authority
- JP
- Japan
- Prior art keywords
- injection
- thrust
- resin
- injection member
- screw
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 68
- 239000007924 injection Substances 0.000 title claims abstract description 68
- 239000012778 molding material Substances 0.000 claims abstract description 13
- 238000001746 injection moulding Methods 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 abstract description 16
- 239000011347 resin Substances 0.000 abstract description 16
- 230000007246 mechanism Effects 0.000 abstract description 12
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/5008—Drive means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔産業上の利用分野〕
本発明は電動機駆動方式の射出機構をもった合成樹脂材
の射出成形機に係るもので、特に１０１００（程度以上
の射出量を有する中、大型射出成形機の射出プランジャ
、射出スクリュー等の射出部材を小出力のサーボモータ
によって駆動し、射出速度、圧力制御性能の向上を図っ
た射出成形機に関するものである。Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an injection molding machine for synthetic resin material having an injection mechanism driven by an electric motor, and particularly relates to an injection molding machine for synthetic resin material having a motor-driven injection mechanism. This invention relates to an injection molding machine that drives the injection members such as the injection plunger and injection screw of a large-sized injection molding machine with a small-output servo motor to improve injection speed and pressure control performance.
この種の射出成形機において溶融樹脂を金型キャビティ
に射出して高品質の成形品を得るためには、射出機構を
、スクリューにより樹脂原料を加熱、混練、可塑化する
部分と、可塑化した樹脂原料をプランジャによって射出
する部分とに区分して、それぞれの機能を最高度に果す
予備可塑化方式、あるいは、射出プランジャの駆動を敏
活かつ精密に行うために、油圧シリンダによる駆動より
もサーボモータ、ボールネジ、推力ナツトによる駆動方
式が採用されつつある。In this type of injection molding machine, in order to inject molten resin into the mold cavity and obtain a high-quality molded product, the injection mechanism consists of a screw that heats, kneads, and plasticizes the resin raw material, and a plasticizing part that uses a screw to heat, knead, and plasticize the resin raw material. A pre-plasticization method is used in which the resin raw material is divided into parts to be injected by a plunger, and each part performs its functions to the highest degree, or a servo is used instead of a hydraulic cylinder to drive the injection plunger quickly and precisely. Drive systems using motors, ball screws, and thrust nuts are increasingly being adopted.
しかし、射出量の大きい射出成形機の射出プランジャを
駆動するためには、サーボモータ、ボールネジ、推力ナ
ツトなどの機構も大型、高出力のものにしなければなら
ないが、精度を十分に保持したこれらの大型品は現状で
は確保し難いのと、サーボモータのロータやボールネジ
の回転部分の慣性が大きくなるので、起動、停止、変速
を頻繁かつ敏速に繰り返さなければならない射出成形機
の射出速度制御には不向きである。However, in order to drive the injection plunger of an injection molding machine with a large injection volume, mechanisms such as servo motors, ball screws, and thrust nuts must also be large and have high output. Large products are difficult to obtain at present, and the inertia of the rotating parts of the servo motor rotor and ball screw is large, so it is necessary to control the injection speed of an injection molding machine that must start, stop, and change gears frequently and quickly. Not suitable.
この点を改良するものとして、例えば特開昭６０−１２
５６１８号に記載された射出成形機がある。この射出成
形機では、複数のモータとクラッチ及びギヤ機構により
それぞれの駆動力を合成して一対のボールネジ、推力ナ
ツトを介して射出スクリュー兼プランジャを駆動してい
る。しかし乍らこの方式では、１個の大出力モータを使
用する場合よりもモータ群の回転部分の慣性を減少させ
ることはできるが、スクリューを駆動するためのボール
ネジ、推力ナツトはスクリューに取り付けられた１組の
大型で慣性の大きなものを使用している上、スクリュー
兼プランジャという所謂インライン方式としているので
、大容量機とするためにスクリュー径を大きくしなけれ
ばならず、その結果モータ群からスクリューに至るまで
の総合的な慣性はあまり小さくはならず、射出プランジ
ャの駆動を敏治かつ精密に行うことは難しい。To improve this point, for example, JP-A-60-12
There is an injection molding machine described in No. 5618. In this injection molding machine, the driving forces of multiple motors, clutches, and gear mechanisms are combined to drive an injection screw/plunger via a pair of ball screws and thrust nuts. However, with this method, the inertia of the rotating part of the motor group can be reduced compared to when using a single high-output motor, but the ball screw and thrust nut for driving the screw are attached to the screw. In addition to using one set of large units with large inertia, it also uses a so-called in-line system that functions as a screw and plunger, so the diameter of the screw must be increased in order to create a large capacity machine, and as a result, the screw is removed from the motor group. The overall inertia up to this point is not very small, and it is difficult to drive the injection plunger quickly and precisely.
本発明は上記の点に鑑ノでなされたもので、小容量機だ
けでなく、中以上の射出成形機の射出制御にもサーボモ
ータ駆動を広げ、サーボモータからプランジャ、スクリ
ュー等の射出部材までの連結機構における慣性を小さく
して、起動、停止等を敏速に繰り返すことができ、特に
射出速度の立上がり、立下がり特性を向上させて、高品
質の精密成形品を得ることのできる射出成形機の提供を
目的としている。The present invention has been made in consideration of the above points, and extends servo motor drive to injection control not only for small capacity machines but also for medium and large injection molding machines, and extends from servo motors to injection parts such as plungers and screws. An injection molding machine that can quickly repeat starting and stopping by reducing the inertia in the coupling mechanism, and particularly improves the rise and fall characteristics of the injection speed to produce high-quality precision molded products. The purpose is to provide
上記目的を達成するため、本発明は、複数のサーボモー
タの各々にサーボモータの回転運動を直進運動に変換す
る変換手段を接続し、各々の変換手段を単一の射出部材
に連結し、前記複数のサーボモータの協働により射出部
材を直進駆動して合成樹脂成形材料を所定の金型に供給
するようにしたことを特徴としている。In order to achieve the above object, the present invention connects a plurality of servo motors to each of the plurality of servo motors with a conversion means for converting the rotational motion of the servo motor into a linear motion, and connects each conversion means to a single injection member. The injection member is linearly driven by the cooperation of a plurality of servo motors to supply synthetic resin molding material to a predetermined mold.
第１図は実施例の射出機構部分を示す正面図、第２図は
同部分の平面図、第３図は射出制御をステムのブロック
図である。FIG. 1 is a front view showing the injection mechanism portion of the embodiment, FIG. 2 is a plan view of the same portion, and FIG. 3 is a block diagram of the injection control stem.
実施例の装置は、スクリューによって成形材料を加熱混
練して可塑化し、可塑化された成形材料をプランジャに
よって金型キャビティ内に射出するようにした予備可塑
化方式の射出成形機である。The apparatus of the embodiment is a pre-plasticizing injection molding machine in which a screw heats and kneads the molding material to plasticize it, and a plunger injects the plasticized molding material into a mold cavity.
まず第１図、第２図に基づいて射出装置の構造を説明す
る。First, the structure of the injection device will be explained based on FIGS. 1 and 2.
装置は可塑化された合成樹脂成形材料を金型キャビティ
（図示せず）内に射出するプランジャからなる射出部
材１と、この射出部材１を可動に収納する射出シリンダ
２と、射出シリンダ２内に可塑化された成形材料を供給
するスクリュー３と、スクリュー３を可動に収納する可
塑化シリンダ４と、射出部材１を駆動させるためのプラ
ンジャ用サーボモータ５と、スクリュー３を駆動する油
圧モータ６と、サーボモータ５と射出部材ｌとの間に介
在し、サーボモータ５の回動を射出部材１の直進運動に
変換する変換手段７と、前記射出シリンダ２、可塑化シ
リンダ４、サーボモータ５、油圧モータ６を各々台座８
に固定するブラケット９゜１０．１１．１２と、前記変
換手段７の直進運動をガイドするガイドアーム１３など
から構成されている。The device includes an injection member 1 consisting of a plunger that injects plasticized synthetic resin molding material into a mold cavity (not shown), an injection cylinder 2 that movably accommodates the injection member 1, and A screw 3 for supplying plasticized molding material, a plasticizing cylinder 4 movably housing the screw 3, a plunger servo motor 5 for driving the injection member 1, and a hydraulic motor 6 for driving the screw 3. , a conversion means 7 that is interposed between the servo motor 5 and the injection member l and converts the rotation of the servo motor 5 into a linear movement of the injection member 1, the injection cylinder 2, the plasticizing cylinder 4, the servo motor 5, Each hydraulic motor 6 is mounted on a pedestal 8.
It is comprised of a bracket 9.degree.10.11.12 which is fixed to the converting means 7, a guide arm 13 which guides the linear movement of the converting means 7, and the like.
前記射出部材１は先端に成形材料排出用のノズル２ａを
備えて射出シリンダ２内を前後に直進可能であり、後端
部に設けた連結部材１ａが後述する変換手段７の推力ナ
ツト７ａに係合している。The injection member 1 has a nozzle 2a for discharging molding material at its tip and can move straight forward and backward inside the injection cylinder 2, and a connecting member 1a provided at its rear end engages a thrust nut 7a of a converting means 7, which will be described later. It matches.
前記スクリュー３は、可塑化シリンダ４内にて回動自在
であり、駆動軸３ａを介して油圧モータ６に連結されて
いる。可塑化シリンダ４の先端部には連結ｉＩ回路４ａ
が設けられ、この連結通路４ａは前記射出シリンダ２に
接続され、後端にはホッパ（図示せず）からの成形材料
を取り入れる取入れ孔４ｂが形成されている。The screw 3 is rotatable within the plasticizing cylinder 4 and is connected to a hydraulic motor 6 via a drive shaft 3a. A connecting iI circuit 4a is connected to the tip of the plasticizing cylinder 4.
This connecting passage 4a is connected to the injection cylinder 2, and an intake hole 4b is formed at the rear end to take in molding material from a hopper (not shown).
前記変換手段７は、ベアリングケース１４内のギヤカッ
プリング１５を介して２個のサーボモータ５に連結され
た２個のボールネジ７ｂと、このボールネジ７ｂの外周
に各々螺合する２個の推力ナツト７ａと、２個の推力ナ
ツト７ａに固定され前記ガイドアーム１３によって直線
移動をガイドされる１個の推力合成部材７Ｃとから成り
、１個の推力合成部材７Ｃが前記１個の射出部材１の連
結部材１ａに係合しているのである。The conversion means 7 includes two ball screws 7b connected to two servo motors 5 via a gear coupling 15 in a bearing case 14, and two thrust nuts screwed onto the outer peripheries of the ball screws 7b, respectively. 7a, and one thrust combining member 7C which is fixed to two thrust nuts 7a and whose linear movement is guided by the guide arm 13. It is engaged with the connecting member 1a.
その他、１６は射出部材ｌと連結部材１ａとの間に配さ
れたロードセル（推力センサ）であり、図示はしないが
射出シリンダ２内には逆流防止機構、可塑化シリンダ４
の外周部にはヒータ等が当然に設けられている。In addition, 16 is a load cell (thrust sensor) disposed between the injection member l and the connecting member 1a, and although not shown, there is a backflow prevention mechanism in the injection cylinder 2, and a plasticizing cylinder 4.
Naturally, a heater or the like is provided on the outer periphery.
次に上記実施例の動作を説明する。Next, the operation of the above embodiment will be explained.
図示しないホッパより取入れ孔４ｂを経て可塑化シリン
ダ４内に取り入れられた熱可塑性合成樹脂成形材料は、
可塑化シリンダ４内にて加熱されるとともにスクリュー
３にて混練され、溶融状態にて連結通路４ａを経て射出
シリンダ２内に供給される。射出シリンダ２内の樹脂圧
をロードセルにて検出し、この信号にて２個のサーボモ
ータ５を逆回転させて、一様な樹脂圧になるように射出
部材１を後退させる。そのときの樹脂量はアプリリュー
トエンコーダＰＣの回転数により所定値となるよう制御
する。The thermoplastic synthetic resin molding material taken into the plasticizing cylinder 4 from a hopper (not shown) through the intake hole 4b is
It is heated in the plasticizing cylinder 4 and kneaded by the screw 3, and is supplied in a molten state into the injection cylinder 2 through the connecting passage 4a. The resin pressure in the injection cylinder 2 is detected by a load cell, and the two servo motors 5 are reversely rotated based on this signal to retract the injection member 1 so that the resin pressure is uniform. The amount of resin at that time is controlled to a predetermined value by the rotational speed of the aprilute encoder PC.
射出シリンダ２内の樹脂量が所定値に達すると、射出ス
タート信号により２個のサーボモータ５は共に正回転を
始め、各点のギヤカップリング１５を介して２個のボー
ルネジ７ｂが回転し、これにより２個の推力ナツト７ａ
がボールネジ７ｂ上を前方に直進する。従って前記２個
の推カナツ）７ａの双方に結合された１個の推力合成部
材７Ｃは２本のガイドアーム１３に案内されて直進し、
推力部材７Ｃに係合する連結部材１ａを介して射出部材
Ｉは射出シリンダ２内の樹脂成形材料をノズル２ａより
金型内に射出する。When the amount of resin in the injection cylinder 2 reaches a predetermined value, the two servo motors 5 start rotating in the forward direction due to the injection start signal, and the two ball screws 7b rotate through the gear couplings 15 at each point. As a result, the two thrust nuts 7a
travels straight forward on the ball screw 7b. Therefore, one thrust combining member 7C connected to both of the two thrusters 7a moves straight while being guided by the two guide arms 13.
The injection member I injects the resin molding material in the injection cylinder 2 into the mold from the nozzle 2a via the connecting member 1a that engages with the thrust member 7C.
射出された樹脂成形材料は、従来周知の如く金型内にて
保圧工程に入れるが、その際全型内樹脂圧が射出部材２
に及ぼす反力をロードセル１６にて検出し、サーボモー
タ５のトルクをプログラム制御することにより、過不足
のない保圧制御を行う。The injected resin molding material is put into a pressure holding process in the mold as is well known in the art, and at that time, the entire resin pressure in the mold reaches the injection member 2.
By detecting the reaction force exerted on the load cell 16 with the load cell 16 and program-controlling the torque of the servo motor 5, pressure holding control with no excess or deficiency is performed.
第３図は射出部材２の制御装置における制御ブロック図
である。FIG. 3 is a control block diagram of the control device for the injection member 2. As shown in FIG.
制御系は、デジタルコントローラ２１とモータ用インタ
フェース２２からなる制御部本体２０と、デジタルコン
トローラ２１に接続される圧力制御プリント板（１，Ｆ
）２３、一方のサーボモータ５を駆動するマスクアンプ
２４、他方のサーボモータ５を駆動するスレーブアンプ
２６、射出部材２の後端部に取り付けられたロードセル
１６、サーボモータ５の速度検知器（第３図ＴＧ）等か
ら構成され、予めデジタルコントローラ２１に入力され
た指令データにより設定圧力が定められてマスタアンプ
２４が２個のサーボモータ５を共に駆動し、射出部材１
を前後進させる。一方、ロードセル１６からの射出部材
１にかかる推力データ、サーボモータ速度検知器からの
サーボモータ速度データ等が常にデジタルコントローラ
２１又はマスクアンプ２４、スレーブアンプ２６に入力
されており、これらの実測値データと設定値とを比較し
、その偏差データによりサーボモータ５の回転を制御す
る。The control system includes a control section main body 20 consisting of a digital controller 21 and a motor interface 22, and a pressure control printed board (1, F) connected to the digital controller 21.
) 23, a mask amplifier 24 that drives one servo motor 5, a slave amplifier 26 that drives the other servo motor 5, a load cell 16 attached to the rear end of the injection member 2, a speed detector (second The set pressure is determined by the command data input into the digital controller 21 in advance, and the master amplifier 24 drives the two servo motors 5 together, and the injection member 1
move back and forth. On the other hand, thrust force data applied to the injection member 1 from the load cell 16, servo motor speed data from the servo motor speed detector, etc. are always input to the digital controller 21, mask amplifier 24, and slave amplifier 26, and these actual measurement value data and the set value, and the rotation of the servo motor 5 is controlled based on the deviation data.
この様な実施例では、特に推力合成部材７Ｃを高剛性で
軽量な材料で形成し、スクリュー３と射出部材（プラン
ジャー）とを別個に設けて射出部材の径を細く且つスト
ロークを長くしているから、駆動装置全体、の慣性は極
めて小さいものとなっている。 ゛
更に、複数のサーボモータ５の回転数を電気的に揃えて
速度制御を行うようにし、ているので、複数のサーボモ
ータにかかる負荷が均等となっている。In such an embodiment, in particular, the thrust combining member 7C is made of a highly rigid and lightweight material, and the screw 3 and the injection member (plunger) are provided separately to reduce the diameter of the injection member and lengthen the stroke. Therefore, the inertia of the entire drive device is extremely small. Furthermore, since speed control is performed by electrically equalizing the rotation speeds of the plurality of servo motors 5, the load applied to the plurality of servo motors is equalized.
向上記実施例では、射出部材をスクリューと別個に設け
たものを説明したが、射出部材とスクリューとが一体化
された所謂インラインスクリュータイプの射出成形機に
も本発明を適用することができるのはもちろんである。In the embodiment described above, the injection member is provided separately from the screw, but the present invention can also be applied to a so-called in-line screw type injection molding machine in which the injection member and the screw are integrated. Of course.
本発明は以上述べた如くであり、複数のサーボモータの
各々に連結された回転−直進変換機構により一個の射出
部材を駆動するようにしたものであるから、駆動系の慣
性が小さく、起動、停止、変速など頻繁且つ敏速な射出
部材制御が可能である。The present invention is as described above, and since one injection member is driven by a rotation-linear conversion mechanism connected to each of a plurality of servo motors, the inertia of the drive system is small, and the start-up and It is possible to control the injection member frequently and quickly, such as stopping and changing speeds.
第１図は本発明実施例の射出成形機における射出機構部
分の正面図、第２図は同射出機構部分の平面図、第３図
は射出制御システムのブロック図である。
１・・・・・・射出部材、３・・・・・・スクリュー、
５・・・・・・サーボモータ、７・・・・・・変換手段
、７ａ・・・・・・推力ナツト、７ｂ・・・・・・ポー
ルネジ。FIG. 1 is a front view of an injection mechanism in an injection molding machine according to an embodiment of the present invention, FIG. 2 is a plan view of the injection mechanism, and FIG. 3 is a block diagram of an injection control system. 1... Injection member, 3... Screw,
5... Servo motor, 7... Conversion means, 7a... Thrust nut, 7b... Pole screw.
Claims (4)
転運動を直進運動に変換する変換手段を接続し、各々の
変換手段を単一の射出部材に連結し、前記複数のサーボ
モータの協働により射出部材を直進駆動して合成樹脂成
形材料を所定の金型に供給するようにした射出成形機。(1) A conversion means for converting the rotational motion of the servo motor into linear motion is connected to each of the plurality of servo motors, and each conversion means is connected to a single injection member, so that the plurality of servo motors cooperate. An injection molding machine that supplies synthetic resin molding material to a predetermined mold by driving an injection member in a straight line.
合せであることを特徴とする特許請求の範囲第（１）項
記載の射出成形機。(2) The injection molding machine according to claim (1), wherein the converting means is a combination of a ball screw and a thrust nut.
する特許請求の範囲第（１）項又は第（２）項記載の射
出成形機。(3) The injection molding machine according to claim (1) or (2), wherein the injection member is a plunger.
ともに送出するスクリューであることを特徴とする特許
請求の範囲第（１）項又は第（２）項記載の射出成形機
。(4) The injection molding machine according to claim (1) or (2), wherein the injection member is a screw that kneads and delivers the synthetic resin molding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12135186A JPS62278017A (en) | 1986-05-28 | 1986-05-28 | Injection molder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12135186A JPS62278017A (en) | 1986-05-28 | 1986-05-28 | Injection molder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62278017A true JPS62278017A (en) | 1987-12-02 |
| JPH0473689B2 JPH0473689B2 (en) | 1992-11-24 |
Family
ID=14809123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12135186A Granted JPS62278017A (en) | 1986-05-28 | 1986-05-28 | Injection molder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62278017A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000020187A1 (en) * | 1998-10-06 | 2000-04-13 | Mitsubishi Heavy Industries, Ltd. | Motor-driven injection drive device for injection molding machine |
| WO2010029900A1 (en) * | 2008-09-10 | 2010-03-18 | 東洋機械金属株式会社 | Forming machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61237615A (en) * | 1985-04-15 | 1986-10-22 | Toshiba Mach Co Ltd | Motor-driven injection molding machine |
-
1986
- 1986-05-28 JP JP12135186A patent/JPS62278017A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61237615A (en) * | 1985-04-15 | 1986-10-22 | Toshiba Mach Co Ltd | Motor-driven injection molding machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000020187A1 (en) * | 1998-10-06 | 2000-04-13 | Mitsubishi Heavy Industries, Ltd. | Motor-driven injection drive device for injection molding machine |
| US6386853B1 (en) | 1998-10-06 | 2002-05-14 | Mitsubishi Heavy Industries, Ltd. | Motor-driven injection driving apparatus for an injection molding machine |
| WO2010029900A1 (en) * | 2008-09-10 | 2010-03-18 | 東洋機械金属株式会社 | Forming machine |
| JP2010064349A (en) * | 2008-09-10 | 2010-03-25 | Toyo Mach & Metal Co Ltd | Molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0473689B2 (en) | 1992-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |