JPH0820051A - Control of operation of ejector in injection molding machine - Google Patents
Control of operation of ejector in injection molding machineInfo
- Publication number
- JPH0820051A JPH0820051A JP17743194A JP17743194A JPH0820051A JP H0820051 A JPH0820051 A JP H0820051A JP 17743194 A JP17743194 A JP 17743194A JP 17743194 A JP17743194 A JP 17743194A JP H0820051 A JPH0820051 A JP H0820051A
- Authority
- JP
- Japan
- Prior art keywords
- control means
- ejector
- molded product
- mold
- movable 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
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、射出成形機におけるエ
ジエクタの動作制御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling the operation of an ejector in an injection molding machine.
【０００２】[0002]
【従来の技術】射出成形機において、従来実施されてい
る成形品の自動的な取出し手順を図４の（ａ）〜（ｊ）
および図５の（ｋ）〜（ｒ）に基づいて説明する。 （ａ）．固定プラテン１に取付けられた固定金型２と、
可動プラテン３に取付けられた可動金型４の型締め状態
において、固定金型２と可動金型４とによって形成され
るキャビティ（図示省略）内に溶融樹脂が注入され、所
定の形状に成形される。この時、取出機構（図示省略）
の把持部５Ａは所定の待機位置で待機している。ここ
で、第２制御手段（図示省略）から可動金型４の開閉機
構（図示省略）に型開信号が出力される。 （ｂ）．可動金型４は型開を開始する。 （ｃ）．可動金型４は型開限位置に到達する。 （ｄ）．第１制御手段（図示省略）から取出機構に把持
部５Ａの型内進入開始信号が出力される。 （ｅ）．第１制御手段の数値制御に基づいて把持部５Ａ
が型内に進入する。 （ｆ）．第１制御手段の数値制御に基づいて把持部５Ａ
が型内の定位置に到達する。 （ｇ）．第１制御手段から第２制御手段にエジエクタ作
動開始信号が出力され、第２制御手段では第１制御手段
からの信号に基づいて演算処理したのち、エジエクタに
動作信号を出力する。 （ｈ）．エジエクタ（図示省略）が作動する。 （ｉ）．エジエクタによって成形品６を突出させるとと
もに、取出機構に組み込まれている空圧機器の作動によ
り把持部５Ａは成形品６を吸着保持する。つまり、把持
部５Ａにより成形品６のチヤッキングがなされる。勿
論、吸着保持に代えてメカ式保持であってもよい。 （ｊ）．把持部５Ａによる成形品６のチヤッキングが確
認される。 （ｋ）．第１制御手段から取出機構に把持部５Ａの引き
抜き開始信号が出力される。 （ｌ）．第１制御手段の数値制御に基づいて把持部５Ａ
が引き抜き移動する。 （ｍ）．把持部５Ａの引き抜き移動が完了する。 （ｎ）．第１制御手段から取出機構に把持部５Ａの型外
退出開始信号が出力される。 （ｏ）．第１制御手段の数値制御に基づいて把持部５Ａ
が型外に退出移動する。 （ｐ）．把持部５Ａが型外退出が完了する。 （ｑ）．第２制御手段から可動金型４の開閉機構に型締
め信号が出力される。つまり、次のサイクルスタート信
号が出力される。 （ｒ）．可動金型４は型締めを開始する。 （ｓ）．可動金型４は型締めされ、前記（ａ）の状態に
なり、以下、前記の手順を反復して成形品６を連続的に
取出す。2. Description of the Related Art In an injection molding machine, a conventional procedure for automatically taking out a molded product is shown in FIGS.
And it demonstrates based on (k)-(r) of FIG. (A). A fixed mold 2 attached to a fixed platen 1,
When the movable mold 4 attached to the movable platen 3 is clamped, molten resin is injected into a cavity (not shown) formed by the fixed mold 2 and the movable mold 4, and is formed into a predetermined shape. You. At this time, a take-out mechanism (not shown)
Is in a standby state at a predetermined standby position. Here, the mold opening signal is output from the second control means (not shown) to the opening / closing mechanism (not shown) of the movable mold 4. (B). The movable mold 4 starts the mold opening. (C). The movable mold 4 reaches the mold opening position. (D). A first control means (not shown) outputs an in-mold entry start signal of the grip portion 5A to the take-out mechanism. (E). The gripping portion 5A based on the numerical control of the first control means.
Enters the mold. (F). The gripping portion 5A based on the numerical control of the first control means.
Reaches a fixed position in the mold. (G). An ejector operation start signal is output from the first control means to the second control means, the second control means performs arithmetic processing based on the signal from the first control means, and then outputs an operation signal to the ejector. (H). An ejector (not shown) operates. (I). While the molded product 6 is projected by the edger, the grip part 5A sucks and holds the molded product 6 by the operation of the pneumatic equipment incorporated in the take-out mechanism. That is, the molded product 6 is chucked by the gripping portion 5A. Of course, mechanical holding may be used instead of suction holding. (J). The chucking of the molded product 6 by the grip 5A is confirmed. (K). A signal to start pulling out the grip portion 5A is output from the first control means to the extraction mechanism. (L). The gripping portion 5A based on the numerical control of the first control means.
Pull out and move. (M). The pull-out movement of the grip 5A is completed. (N). From the first control means, the withdrawal start signal of the grip portion 5A is output to the ejection mechanism. (O). The gripping portion 5A based on the numerical control of the first control means.
Moves out of the mold. (P). The grip portion 5A completes the withdrawal from the mold. (Q). A mold clamping signal is output from the second control means to the opening / closing mechanism of the movable mold 4. That is, the next cycle start signal is output. (R). The movable mold 4 starts clamping. (S). The movable mold 4 is clamped to be in the state of (a), and thereafter, the above procedure is repeated to continuously remove the molded product 6.
【０００３】前記（ｇ）の第１制御手段から第２制御手
段にエジエクタ作動開始信号が出力され、第２制御手段
で第１制御手段からの信号に基づいて演算処理したの
ち、エジエクタに動作信号を出力する作動を図６に基づ
いて詳述する。すなわち、第１制御手段９から第２制御
手段１０にエジエクタ作動開始信号が出力され、第２制
御手段１０では第１制御手段９からの信号に基づいて演
算処理したのち、エジエクタ１１に動作信号を出力す
る。The (g) first control means outputs an ejector operation start signal to the second control means, the second control means performs arithmetic processing based on the signal from the first control means, and then the operation signal to the ejector. Will be described in detail with reference to FIG. That is, the first control means 9 outputs an ejector operation start signal to the second control means 10, the second control means 10 performs arithmetic processing based on the signal from the first control means 9, and then outputs the operation signal to the ejector 11. Output.
【０００４】エジエクタ１１は、可動金型４内に組み込
まれ常時はスプリング１１Ａの付勢によりストローク後
端に位置決めされているエジエクタピン１１Ｂと、この
エジエクタピン１１Ｂをスプリング１１Ａの付勢に抗し
てストローク前端位置まで押圧前進させる油圧シリンダ
１１Ｃと、油圧シリンダ１１Ｃの前室および後室に圧油
を給排する配管１１Ｄと、電磁弁によってなる切換弁１
１Ｅの切換えに対応して油槽１１Ｆ内の油を油圧シリン
ダ１１Ｃの前室もしくは後室に圧送する油圧ポンプ１１
Ｇなどを備えている。したがって、従来の制御方法は、
第１制御手段９から第２制御手段１０にエジエクタ作動
開始信号が出力され、第２制御手段１０では第１制御手
段９からの信号に基づいて演算処理したのち、増幅器１
２を介して切換弁１１Ｅに増幅動作信号を出力し、切換
弁１１Ｅを切換えて油圧シリンダ１１Ｃの後室に圧油を
送り、前室内の油を排出させることにより、油圧シリン
ダ１１Ｃを前進させ（詳しくは、油圧シリンダ１１Ｃの
ピストンロッドを前進させる）、スプリング１１Ａの付
勢に抗してエジエクタピン１１Ｂをストローク前端位置
まで押圧して、成形品６を可動金型４外に突出させる。The engine ejector 11 is incorporated in the movable mold 4 and is normally positioned at the rear end of the stroke by the biasing force of the spring 11A, and the ejector pin 11B resists the biasing force of the spring 11A. A hydraulic cylinder 11C that pushes and advances to a position, a pipe 11D that supplies and discharges pressurized oil to and from a front chamber and a rear chamber of the hydraulic cylinder 11C, and a switching valve 1 that includes a solenoid valve.
A hydraulic pump 11 for pumping the oil in the oil tank 11F to the front chamber or the rear chamber of the hydraulic cylinder 11C in response to the switching of 1E.
It has G and so on. Therefore, the conventional control method is
The first control means 9 outputs an ejector operation start signal to the second control means 10, and the second control means 10 performs arithmetic processing based on the signal from the first control means 9 and then the amplifier 1
2 outputs an amplification operation signal to the switching valve 11E, switches the switching valve 11E, sends pressure oil to the rear chamber of the hydraulic cylinder 11C, and discharges the oil in the front chamber to move the hydraulic cylinder 11C forward ( Specifically, the piston rod of the hydraulic cylinder 11C is moved forward), and the ejector pin 11B is pressed to the stroke front end position against the bias of the spring 11A, and the molded product 6 is projected outside the movable mold 4.
【０００５】ところが、従来の制御方法では、まず、第
１制御手段９から第２制御手段１０にエジエクタ作動開
始信号を出力し、第２制御手段１０では第１制御手段９
からの信号に基づいて演算処理したのち、増幅器１２を
介して切換弁１１Ｅに動作信号を出力するようにしてい
るので、第２制御手段１０での演算処理に要する時間に
相当するロスタイムが発生し、これが成形サイクルを長
くしている。本発明者は、この点に着目し鋭意研究の結
果、本発明を完成するに至った。However, in the conventional control method, first, the first control means 9 outputs an engineer operation start signal to the second control means 10, and the second control means 10 causes the first control means 9 to operate.
Since the operation signal is output to the switching valve 11E via the amplifier 12 after the arithmetic processing is performed based on the signal from, the loss time corresponding to the time required for the arithmetic processing in the second control means 10 occurs. , Which lengthens the molding cycle. The present inventor has completed the present invention as a result of earnest research focusing on this point.
【０００６】[0006]
【発明が解決しようとする課題】解決しようとする問題
点は、第２制御手段での演算処理に要する時間に相当す
るロスタイムに相当して、成形サイクルが長くなる点で
ある。The problem to be solved is that the molding cycle is lengthened corresponding to the loss time corresponding to the time required for the arithmetic processing in the second control means.
【０００７】[0007]
【課題を解決するための手段】本発明は、固定金型と、
この固定金型に進退自在に設けられ、前記固定金型とと
もに射出成形キャビティを形成する可動金型と、該可動
金型の移動開始および移動量を連続的に検出する検出手
段と、前記キャビティで成形されたのち型開完了位置ま
で前記可動金型に保持されて移動してきた成形品を突出
させるエジエクタと、該エジエクタにより突出される成
形品を把持する把持部を設けた取出機構と、該取出機構
を数値制御する第１制御手段と、この第１制御手段から
出力される信号に基づいて射出成形機に制御信号を出力
する第２制御手段とを備え射出成形機において、所定の
タイミングで前記第１制御手段から前記エジエクタに直
接動作信号を出力して、可動金型内の成形品を突き出す
ことを特徴とし、成形サイクルを短縮する目的を達成し
た。The present invention comprises a fixed mold,
A movable mold which is provided in the fixed mold so as to be movable back and forth and forms an injection molding cavity together with the fixed mold, a detection means for continuously detecting the movement start and the movement amount of the movable mold, and the cavity. An ejector for ejecting a molded product that is held in the movable die and moved to a mold opening completion position after being molded, a take-out mechanism provided with a gripping portion for grasping the molded product ejected by the ejector, and the take-out mechanism. The injection molding machine is provided with a first control means for numerically controlling the mechanism and a second control means for outputting a control signal to the injection molding machine based on a signal output from the first control means, at a predetermined timing. The first control means outputs an operation signal directly to the ejector to eject the molded product in the movable mold, thereby achieving the object of shortening the molding cycle.
【０００８】[0008]
【作用】本発明によれば、第１制御手段からエジエクタ
に直接動作信号を出力するので、従来に比べて第２制御
手段での演算処理に要していたロスタイムに相当する時
間を短縮できる。According to the present invention, since the operation signal is directly output from the first control means to the ejector, the time corresponding to the loss time required for the arithmetic processing in the second control means can be shortened as compared with the conventional case.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１は、本発明が適用される射出成形機の要部を
示す斜視図である。なお、前記従来例と同一もしくは相
当部分には同一符号を付して説明する。この図におい
て、固定プラテン１に固定金型２が取付けられ、可動プ
ラテン３に可動金型４が取付けられている。可動プラテ
ン３は、一端が固定プラテン１に取り付けられた複数本
のタイバー７に沿って移動可能となっており、固定金型
２と可動金型４の型締めによってキャビティ（図示省
略）が形成され、このキャビティには図示していない射
出装置から溶融樹脂が充填される。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a main part of an injection molding machine to which the present invention is applied. It should be noted that the same or corresponding portions as those in the conventional example will be described by attaching the same reference numerals. In this figure, a fixed die 2 is attached to a fixed platen 1, and a movable die 4 is attached to a movable platen 3. One end of the movable platen 3 is movable along a plurality of tie bars 7 attached to the fixed platen 1, and a cavity (not shown) is formed by clamping the fixed mold 2 and the movable mold 4. The cavity is filled with molten resin from an injection device (not shown).
【００１０】射出成形品の取出し装置は、可動プラテン
３、つまり可動金型４の移動を検出する検出手段８、成
形品６を取出す取出機構５および第１制御手段９を備
え、可動プラテン３側に成形品６を突出させるエジエク
タ１１（図２参照）が設けられている。The injection molded product take-out device comprises a movable platen 3, that is, a detection means 8 for detecting the movement of the movable mold 4, a take-out mechanism 5 for taking out the molded product 6, and a first control means 9, and the movable platen 3 side. An ejector 11 (see FIG. 2) for projecting the molded product 6 is provided in the.
【００１１】検出手段８は、エンコーダ８Ａと磁気スケ
ール８Ｂとを備え、エンコーダ８Ａは固定プラテン１に
取り付けられ、磁気スケール８Ｂは可動プラテン３に取
り付けられており、磁気スケール８Ｂは可動プラテン３
の移動に伴って、エンコーダ８Ａに対して相対的に移動
する。したがって、可動プラテン３の移動量、つまり可
動金型４の移動量はエンコーダ８Ａによって連続的に検
出される。The detecting means 8 comprises an encoder 8A and a magnetic scale 8B. The encoder 8A is attached to the fixed platen 1, the magnetic scale 8B is attached to the movable platen 3, and the magnetic scale 8B is attached to the movable platen 3.
With the movement of, the relative movement with respect to the encoder 8A. Therefore, the moving amount of the movable platen 3, that is, the moving amount of the movable mold 4, is continuously detected by the encoder 8A.
【００１２】取出機構５は、垂直Ｙ軸方向にのびる支持
部５Ｂを有し、この支持部５Ｂには該支持部５Ｂに対し
て直角（水平Ｘ軸）方向にのびるアーム部５Ｃが取付け
られている。アーム部５Ｃは取出しアーム５Ｄを備え、
この取出しアーム５Ｄの先端にチヤック板、つまり把持
部５Ａが取付けられている。The take-out mechanism 5 has a support portion 5B extending in the vertical Y-axis direction, and an arm portion 5C extending in a direction perpendicular to the support portion 5B (horizontal X-axis) is attached to the support portion 5B. There is. The arm portion 5C includes a take-out arm 5D,
A chuck plate, that is, a grip portion 5A is attached to the tip of the take-out arm 5D.
【００１３】支持部５Ｂを立設している基台５Ｅには空
気圧機器およびサーボモータ（ともに図示せず）が組込
まれており、支持部５Ｂとアーム部５Ｃにサーボモータ
５Ｆ，５Ｇが取付けられている。したがって、サーボモ
ータ５Ｆの駆動によりアーム部５ＣがＸ軸方向に移動
し、サーボモータ５Ｇの駆動により取出しアーム５Ｄが
Ｙ軸方向に移動する。また、基台５Ｅ内のサーボモータ
の駆動によってアーム部５Ｃが支持部５Ｂに対して回転
する。A pneumatic equipment and a servomotor (both not shown) are incorporated in a base 5E on which the supporting portion 5B is erected, and servomotors 5F and 5G are attached to the supporting portion 5B and the arm portion 5C. ing. Therefore, the arm portion 5C moves in the X-axis direction by driving the servo motor 5F, and the take-out arm 5D moves in the Y-axis direction by driving the servo motor 5G. The arm 5C rotates with respect to the support 5B by driving the servomotor in the base 5E.
【００１４】検出手段８は第１制御手段９に電気的に接
続され、この第１制御手段９によって取出機構５の作動
が制御される。また、所定のプログラムに基づいて射出
成形機の射出系などに制御信号を出力する第２制御手段
１０を備えている。The detecting means 8 is electrically connected to the first control means 9, and the operation of the take-out mechanism 5 is controlled by the first control means 9. Further, it is provided with a second control means 10 for outputting a control signal to an injection system of an injection molding machine based on a predetermined program.
【００１５】本発明による成形品の自動的な取出し手順
は、前記図４の（ａ）〜（ｊ）および図５の（ｋ）〜
（ｒ）において、図４の（ｇ）を除いて概ね従来と同様
に実行される。したがって、（ｇ）以外の作動説明は省
略し、従来例と異なる作動を行う（ｇ）のみについて説
明する。The automatic take-out procedure of the molded article according to the present invention is performed by the steps (a) to (j) in FIG. 4 and (k) to FIG.
In (r), the procedure is almost the same as the conventional method except for (g) in FIG. Therefore, the description of the operation other than (g) is omitted, and only (g) performing an operation different from the conventional example will be described.
【００１６】図２において、第１制御手段９から増幅器
１２を介して切換弁１１Ｅに動作信号を出力し、切換弁
１１Ｅを切換えて油圧シリンダ１１Ｃの後室に圧油を送
り、前室内の油を排出させることにより、油圧シリンダ
１１Ｃを前進させ（詳しくは、油圧シリンダ１１Ｃのピ
ストンロッドを前進させる）、スプリング１１Ａの付勢
に抗してエジエクタピン１１Ｂをストローク前端位置ま
で押圧して、成形品６を可動金型４外に突出させる。In FIG. 2, an operation signal is output from the first control means 9 via the amplifier 12 to the switching valve 11E, the switching valve 11E is switched to send the pressure oil to the rear chamber of the hydraulic cylinder 11C, and the oil in the front chamber is discharged. Is discharged to advance the hydraulic cylinder 11C (specifically, the piston rod of the hydraulic cylinder 11C is advanced), and the ejector pin 11B is pressed to the stroke front end position against the biasing force of the spring 11A. Is projected to the outside of the movable mold 4.
【００１７】このように、第１制御手段９からエジエク
タ１１に直接動作信号を出力するので、従来に比べて第
２制御手段１０での演算処理に要していたロスタイムに
相当する時間を短縮できる。As described above, since the operation signal is directly output from the first control means 9 to the ejector 11, the time corresponding to the loss time required for the arithmetic processing in the second control means 10 can be shortened as compared with the conventional case. .
【００１８】なお、前記実施例では、型開時において取
出しアーム５Ｄおよび把持部５Ａが直線的に進退移動す
る構造の取出機構５を使用して説明しているが、たとえ
ば図３に示すように、取出しアーム５Ｄが軸５Ｈの軸ま
わり回動して、把持部５Ａが円弧状に進退移動する構造
の取出機構５を使用してもよい。In the above embodiment, the take-out mechanism 5 having a structure in which the take-out arm 5D and the grip portion 5A linearly move forward and backward when the mold is opened has been described, but as shown in FIG. 3, for example. The take-out mechanism 5 having a structure in which the take-out arm 5D rotates around the axis of the shaft 5H and the gripping portion 5A moves back and forth in an arc shape may be used.
【００１９】また、大型の射出成形機では、小型の射出
成形機比較して切換弁１１Ｅの切換え後における油圧シ
リンダ１１Ｃの作動速さが若干緩慢な機種も存在する。
このような機種では、第１制御手段９の数値制御に基づ
いて把持部５Ａが型内の定位置に到達したのちに、第１
制御手段９から増幅器１２を介して切換弁１１Ｅに動作
信号を出力する作動に代え、前記（ａ）のタイミング、
つまり把持部５Ａが所定の待機位置で待機しているタイ
ミングまたは前記（ｄ）のタイミング、つまり、把持部
５Ａの型内進入開始信号が出力されたタイミングで第１
制御手段９からタイマー（図示省略）にエジエクタ１１
の動作信号を出力し、前記タイマーにおいてセットした
遅延時間経過後に、前述のように増幅器１２を介して切
換弁１１Ｅに動作信号を出力するようにしてもよい。In some large injection molding machines, the operating speed of the hydraulic cylinder 11C after switching the switching valve 11E is slightly slower than that of small injection molding machines.
In such a model, after the grip portion 5A reaches a fixed position in the mold based on the numerical control of the first control means 9,
Instead of the operation of outputting an operation signal from the control means 9 to the switching valve 11E via the amplifier 12, the timing (a),
That is, the first portion is set at the timing when the grip portion 5A is waiting at the predetermined standby position or the timing (d), that is, the timing when the in-mold entry start signal of the grip portion 5A is output.
From the control means 9 to the timer (not shown)
The operation signal may be output, and after the delay time set by the timer has elapsed, the operation signal may be output to the switching valve 11E via the amplifier 12 as described above.
【００２０】[0020]
【発明の効果】以上説明したように、本発明は、第１制
御手段からエジエクタに直接動作信号を出力するので、
従来に比べて第２制御手段での演算処理に要していたロ
スタイムに相当する時間を短縮できる。As described above, according to the present invention, since the first control means directly outputs the operation signal to the ejector,
It is possible to reduce the time corresponding to the loss time required for the arithmetic processing in the second control means as compared with the conventional case.
【図１】本発明が適用をされる射出成形機の要部を示す
斜視図である。FIG. 1 is a perspective view showing a main part of an injection molding machine to which the present invention is applied.
【図２】本発明に係る制御系の構成図である。FIG. 2 is a configuration diagram of a control system according to the present invention.
【図３】取出機構の変形例を示す斜視図である。FIG. 3 is a perspective view showing a modified example of the takeout mechanism.
【図４】（ａ）〜（ｊ）は従来の作動手順の前半部を示
す説明図である。4 (a) to 4 (j) are explanatory views showing the first half of a conventional operation procedure.
【図５】（ｋ）〜（ｒ）は従来の作動手順の後半部を示
す説明図である。5 (k) to (r) are explanatory views showing the latter half of the conventional operating procedure.
【図６】従来の制御系の構成図である。FIG. 6 is a block diagram of a conventional control system.
２ 固定金型 ４ 可動金型 ５ 取出機構 ５Ａ 取出機構の把持部 ６ 成型品 ８ 検出手段 ９ 第１制御手段 １０ 第２制御手段 １１ エジエクタ 2 Fixed mold 4 Movable mold 5 Extraction mechanism 5A Grasping part of extraction mechanism 6 Molded product 8 Detecting means 9 First control means 10 Second control means 11 Ejector
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成６年９月１４日[Submission date] September 14, 1994
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図４[Name of item to be corrected] Fig. 4
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図４】 [Figure 4]
───────────────────────────────────────────────────── フロントページの続き (72)発明者 塩崎 哲郎 京都府京都市伏見区久我本町11−260 株 式会社ユーシン精機内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuro Shiozaki 11-260 Kugahonmachi, Fushimi-ku, Kyoto-shi, Kyoto Prefecture Yushin Seiki Co., Ltd.
Claims (1)
設けられ、前記固定金型とともに射出成形キャビティを
形成する可動金型と、該可動金型の移動開始および移動
量を連続的に検出する検出手段と、前記キャビティで成
形されたのち型開完了位置まで前記可動金型に保持され
て移動してきた成形品を突出させるエジエクタと、該エ
ジエクタにより突出される成形品を把持する把持部を設
けた取出機構と、該取出機構を数値制御する第１制御手
段と、この第１制御手段から出力される信号に基づいて
射出成形機に制御信号を出力する第２制御手段とを備え
た射出成形機において、所定のタイミングで前記第１制
御手段から前記エジエクタに直接動作信号を出力して、
可動金型内の成形品を突き出すことを特徴とする射出成
形機におけるエジエクタの動作制御方法。1. A fixed mold, a movable mold which is provided in the fixed mold so as to move back and forth, and forms an injection molding cavity together with the fixed mold, and the movement start and movement amount of the movable mold are continuous. Detecting means, an ejector for ejecting a molded product that has been molded in the cavity and then held in the movable mold and moved to the mold opening completion position, and a grip for grasping the molded product ejected by the ejector. And a first control means for numerically controlling the extraction mechanism, and a second control means for outputting a control signal to the injection molding machine based on a signal output from the first control means. In the injection molding machine, the operation signal is directly output from the first control means to the ejector at a predetermined timing,
An ejector operation control method in an injection molding machine, which comprises ejecting a molded product in a movable mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6177431A JP2925934B2 (en) | 1994-07-05 | 1994-07-05 | Operation control method of an ejector in an injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6177431A JP2925934B2 (en) | 1994-07-05 | 1994-07-05 | Operation control method of an ejector in an injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0820051A true JPH0820051A (en) | 1996-01-23 |
| JP2925934B2 JP2925934B2 (en) | 1999-07-28 |
Family
ID=16030827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6177431A Expired - Fee Related JP2925934B2 (en) | 1994-07-05 | 1994-07-05 | Operation control method of an ejector in an injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2925934B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0882560A2 (en) * | 1997-06-05 | 1998-12-09 | Johnson & Johnson Vision Products, Inc. | Method for rapid robotic handling of small mold parts |
| JP2006218826A (en) * | 2005-02-14 | 2006-08-24 | Mitsubishi Heavy Industries Plastic Technology Co Ltd | Ejector of injection molding machine, injection molding system and control method of ejector |
| CN106273255A (en) * | 2016-08-29 | 2017-01-04 | 潼南县开鑫电子科技有限责任公司 | A kind of injection mold |
| WO2023026347A1 (en) * | 2021-08-24 | 2023-03-02 | ファナック株式会社 | Computing device and injection molding system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62273816A (en) * | 1986-05-23 | 1987-11-27 | Sumitomo Heavy Ind Ltd | Automatic removing apparatus for injection molding |
| JPH0528618U (en) * | 1991-09-20 | 1993-04-16 | 株式会社ユーシン精機 | Device for taking out plastic molded products |
| JPH0528619U (en) * | 1991-09-20 | 1993-04-16 | 株式会社ユーシン精機 | Device for taking out plastic molded products |
-
1994
- 1994-07-05 JP JP6177431A patent/JP2925934B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62273816A (en) * | 1986-05-23 | 1987-11-27 | Sumitomo Heavy Ind Ltd | Automatic removing apparatus for injection molding |
| JPH0528618U (en) * | 1991-09-20 | 1993-04-16 | 株式会社ユーシン精機 | Device for taking out plastic molded products |
| JPH0528619U (en) * | 1991-09-20 | 1993-04-16 | 株式会社ユーシン精機 | Device for taking out plastic molded products |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0882560A2 (en) * | 1997-06-05 | 1998-12-09 | Johnson & Johnson Vision Products, Inc. | Method for rapid robotic handling of small mold parts |
| EP0882560A3 (en) * | 1997-06-05 | 1999-04-07 | Johnson & Johnson Vision Products, Inc. | Method for rapid robotic handling of small mold parts |
| US6007229A (en) * | 1997-06-05 | 1999-12-28 | Johnson & Johnson Vision Products, Inc. | Rapid robotic handling of mold parts used to fabricate contact lenses |
| AU731375B2 (en) * | 1997-06-05 | 2001-03-29 | Johnson & Johnson Vision Products, Inc. | Method for rapid robotic handling of small mold parts |
| US6502009B1 (en) | 1997-06-05 | 2002-12-31 | Johnson & Johnson Vision Care, Inc. | Rapid robotic handling of mold parts used to fabricate contact lenses |
| JP2006218826A (en) * | 2005-02-14 | 2006-08-24 | Mitsubishi Heavy Industries Plastic Technology Co Ltd | Ejector of injection molding machine, injection molding system and control method of ejector |
| CN106273255A (en) * | 2016-08-29 | 2017-01-04 | 潼南县开鑫电子科技有限责任公司 | A kind of injection mold |
| WO2023026347A1 (en) * | 2021-08-24 | 2023-03-02 | ファナック株式会社 | Computing device and injection molding system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2925934B2 (en) | 1999-07-28 |
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