JPH0251378B2 - - Google Patents

Info

Publication number
JPH0251378B2
JPH0251378B2 JP9120885A JP9120885A JPH0251378B2 JP H0251378 B2 JPH0251378 B2 JP H0251378B2 JP 9120885 A JP9120885 A JP 9120885A JP 9120885 A JP9120885 A JP 9120885A JP H0251378 B2 JPH0251378 B2 JP H0251378B2
Authority
JP
Japan
Prior art keywords
mold opening
mold
start position
speed
ejector
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
Application number
JP9120885A
Other languages
Japanese (ja)
Other versions
JPS61249723A (en
Inventor
Hiromasa Ootake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fanuc Corp
Original Assignee
Fanuc Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fanuc Corp filed Critical Fanuc Corp
Priority to JP9120885A priority Critical patent/JPS61249723A/en
Publication of JPS61249723A publication Critical patent/JPS61249723A/en
Publication of JPH0251378B2 publication Critical patent/JPH0251378B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/76Measuring, controlling or regulating
    • B29C45/7626Measuring, controlling or regulating the ejection or removal of moulded articles

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、射出成形機のエジエクタ制御方式に
関し、特に数値制御装置を用いて射出成形機の型
開き動作中任意の位置からエジエクタの作動を開
始するようにした制御方式に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an ejector control system for an injection molding machine, and particularly to a numerical control device to start the ejector operation from any position during the mold opening operation of the injection molding machine. The present invention relates to a control method.

従来の技術 従来の射出成形機のエジエクタ装置は、機械式
または油圧式のエジエクタ装置であつて、エジエ
クタ装置を駆動するタイミングは機械式エジエク
タ装置にあつてはストローク調整ボルト等を調整
することによつて、また、油圧式エジエクタ装置
にあつては油圧機構を作動させるタイミングによ
つて型開き時の任意の位置で作動させることがで
きた。一方、エジエクタ装置や型締機構をサーボ
モータで駆動し、これらのサーボモータを数値制
御装置で制御する射出成形機も開発されている
が、数値制御装置は任意の軸、即ちある軸のサー
ボモータを駆動中、他の軸のサーボモータを駆動
させることは不可能であつた。そのため、数値制
御装置によつてサーボモータを駆動し、型締機構
を駆動途中にエジエクタ装置を駆動させることは
困難であつた。
Prior Art The ejector device of a conventional injection molding machine is a mechanical or hydraulic ejector device, and the timing for driving the ejector device is determined by adjusting a stroke adjustment bolt or the like in the case of a mechanical ejector device. Furthermore, in the case of a hydraulic ejector device, it was possible to operate the hydraulic mechanism at any position during mold opening by adjusting the timing of operating the hydraulic mechanism. On the other hand, injection molding machines have been developed in which the ejector device and mold clamping mechanism are driven by servo motors, and these servo motors are controlled by a numerical control device, but the numerical control device can control the servo motor of any axis, that is, a certain axis. While driving the servo motors of other axes, it was impossible to drive the servo motors of other axes. Therefore, it has been difficult to drive the ejector device while driving the mold clamping mechanism by driving the servo motor using the numerical control device.

発明が解決しようとする問題点 本発明は、数値制御装置で制御される射出成形
機において型開き動作を中断させることなくエジ
エクタ装置の作動を開始するようにしたエジエク
タ制御方式を提供することを目的とする。
Problems to be Solved by the Invention An object of the present invention is to provide an ejector control method that starts the operation of an ejector device without interrupting the mold opening operation in an injection molding machine controlled by a numerical control device. shall be.

問題点を解決するための手段 通常、数値制御装置にあつては、Gコードの移
動指令によつてある軸の送りが連続して行われて
いるとき、その区間は停止することなく次のブロ
ツクに移り、送りを続ける。しかし、移動指令と
Mコード(補助機能)が同一ブロツクにプログラ
ムされていると、移動指令と同時、または移動指
令が終わつてからMコードで指定されたM機能の
動作を実行することができる。本発明は、この数
値制御装置が有するM機能を利用して型開き途中
任意の位置においてエジエクタ装置を駆動できる
ようにした。
Measures to solve the problem Normally, in a numerical control device, when a certain axis is continuously fed according to the movement command of the G code, the next block is moved without stopping during that section. and continue sending. However, if the movement command and the M code (auxiliary function) are programmed in the same block, the M function specified by the M code can be executed simultaneously with the movement command or after the movement command is completed. The present invention makes it possible to drive the ejector device at any position during mold opening by utilizing the M function of this numerical control device.

作 用 型開き時には数値制御装置は設定された型締機
構の速度切換位置まで設定された当該区間の型開
き速度で設定されたエジエクト開始位置まで型締
機構を駆動し、エジエクト開始位置に達すると、
M機能によつてエジエクタ装置を駆動すると共
に、再び設定された速度及び速度切換位置に従つ
て型締機構を駆動し、型締機構の任意の位置でエ
ジエクタ装置を駆動開始できるようにした。
Operation When opening the mold, the numerical control device drives the mold clamping mechanism to the set eject start position at the set mold opening speed in the section up to the set speed switching position of the mold clamp mechanism, and when the eject start position is reached. ,
The ejector device is driven by the M function, and the mold clamping mechanism is driven again according to the set speed and speed switching position, so that driving of the ejector device can be started at any position of the mold clamping mechanism.

実施例 第1図は、本発明の一実施例による射出成形機
の要部構成を示し、射出成形機の型締機構1及び
エジエクタ装置2を、数値制御装置3からの指令
に応動するサーボ回路4,5にて制御されるサー
ボモータ6,7により駆動するようになつてい
る。数値制御装置3の数値制御用中央処理装置
(以下、NC用CPUという)11とプログラマブ
ルコントローラ用中央処理装置(以下、PC用
CPUという)12とはインタフエイス13を介
して互いに接続され、該インタフエイス13には
NCプログラム等を記憶するための不揮発性
RAM14、CRTデイスプレイ付き操作盤
(MDI/CRT)8、及び射出成形機の手動/自動
運転モード切換用のスイツチ等よりなる主操作盤
9がそれぞれ接続されている。そして、NC用
CPU11には射出成形機全体を制御するための
制御プログラムを記憶したROM15と、出力側
がサーボ回路4,5に接続されたインタフエイス
16とが接続され、PC用CPU12にはエジエク
タ装置2等を駆動するためのシーケンスプログラ
ムを記憶したROM17が接続されている。そし
て、本実施例では、新たなNCプログラムを作成
することなく設定値の変更のみで対処できるよう
に、NCプログラムで使用する設定値をマクロ変
数で作成し、各種条件の設定値をこのマクロ変数
により具体的にはRAM14のデータ記憶領域の
アドレスに対応づけてMDI/CRT8を介して手
動で設定しこれをRAM14に記憶されている。
Embodiment FIG. 1 shows the main part configuration of an injection molding machine according to an embodiment of the present invention, in which a mold clamping mechanism 1 and an ejector device 2 of the injection molding machine are controlled by a servo circuit that responds to commands from a numerical control device 3. It is designed to be driven by servo motors 6 and 7 controlled by motors 4 and 5. The numerical control central processing unit (hereinafter referred to as NC CPU) 11 of the numerical control device 3 and the programmable controller central processing unit (hereinafter referred to as PC CPU) 11
(referred to as CPU) 12 are connected to each other via an interface 13, and the interface 13 includes
Non-volatile for storing NC programs etc.
A main operation panel 9 consisting of a RAM 14, an operation panel (MDI/CRT) 8 with a CRT display, and a switch for switching the injection molding machine's manual/automatic operation mode is connected to each of them. And for NC
A ROM 15 storing a control program for controlling the entire injection molding machine and an interface 16 whose output side is connected to the servo circuits 4 and 5 are connected to the CPU 11, and the PC CPU 12 drives the ejector device 2, etc. A ROM 17 is connected which stores a sequence program for performing the following steps. In this example, the setting values used in the NC program are created as macro variables, and the setting values of various conditions are set in these macro variables, so that the setting values can be changed only by changing the setting values without creating a new NC program. More specifically, it is manually set via the MDI/CRT 8 in association with the address of the data storage area of the RAM 14, and is stored in the RAM 14.

第2図は、型開き時における型締機構の位置と
型開き速度の関係を表わした一例を示す図で、a
点は型閉じ位置、b点は高速型開き開始位置、c
点は低速型開き開始位置、d点は型開き位置を
各々示し、これらの位置はMDI/CRT8の操作
盤より設定され不揮発性RAM14に記憶され
る。すなわち、本実施例ではb点はマクロ変数
#515に、c点はマクロ変数#517、d点は
マクロ変速#503の各々のアドレス位置に設定
記憶される。そして、エジエクト開始位置eはマ
クロ変数#519に設定記憶されているものとす
る。また、型開き速度はa−b間の速度v1はマク
ロ変数#512に、b−c間の高速型開き速度v2
はマクロ変数#516に、c−d間の速度はマク
ロ変数#518に各々MDI/CRT8の操作盤よ
り設定され、各々記憶されているものとする。
Fig. 2 is a diagram showing an example of the relationship between the position of the mold clamping mechanism and the mold opening speed during mold opening, and a
Point is the mold closing position, point b is the high speed mold opening start position, c
The point indicates the low-speed mold opening start position, and the point d indicates the mold opening position, and these positions are set from the operation panel of the MDI/CRT 8 and stored in the nonvolatile RAM 14. That is, in this embodiment, point b is set and stored in macro variable #515, point c is set and stored in macro variable #517, and point d is set and stored in macro variable #503. It is assumed that the eject start position e is set and stored in macro variable #519. Also, the mold opening speed is the speed v 1 between a and b, and the high speed mold opening speed v 2 between b and c is set in macro variable #512.
is set in macro variable #516, and the speed between c and d is set in macro variable #518 from the operation panel of the MDI/CRT 8, and each is stored.

そこで、本実施例における型開き動作につい
て、第3図の動作処理フローと共に説明する。
Therefore, the mold opening operation in this embodiment will be explained together with the operation processing flow shown in FIG.

まず、エジエクト開始位置eが高速型開き開始
位置bより大きいか否かを、各位置を表わす
RAM14のマクロ変数#519と、#515と
の記憶内容を比較することにより判別する(ステ
ツプS1)。エジエクト開始位置e#519が高速
型開き開始位置b#515より小さいか等しけれ
ば、RAM14のマクロ変数#512に記憶され
た低速の型開き速度v1で型締機構を駆動し、マク
ロ変数#519に記憶するエジエクト開始位置ま
で移動させる(ステツプS2)。次いで、エジエク
タ装置2の作動を開始させる駆動信号としてのM
コードを出力し、PC用CPU12を作動させ、
ROM17で記憶するエジエクタ装置用プログラ
ムに従いエジエクタ装置2の作動を開始させると
共に、マクロ変数#512に設定された速度v1
の型開きを高速型開き開始位置b#515まで継
続する(ステツプS3)。なお、上記エジエクタ開
始動作は型開きを中断することなく型開き動作と
共に行われる。次に、マクロ変数#516の記憶
内容である高速型開き速度v2でマクロ変数#51
7に記憶した低速型開き開始位置cまで型開きを
行い(ステツプS4)、次いで、マクロ変数#51
8番地の記憶内容である低速型開き速度v3で型開
き完了位置d#503まで金型を移動させ型開き
を終了する。
First, it is determined whether or not the eject start position e is greater than the high speed mold opening start position b.
The determination is made by comparing the stored contents of macro variables #519 and #515 in the RAM 14 (step S1). If the eject start position e#519 is smaller than or equal to the high speed mold opening start position b#515, the mold clamping mechanism is driven at the slow mold opening speed v1 stored in the macro variable #512 of the RAM 14, and (step S2). Then, M as a drive signal to start the operation of the ejector device 2
Output the code and activate the PC CPU 12,
The operation of the ejector device 2 is started according to the ejector device program stored in the ROM 17, and the mold opening at the speed v 1 set in the macro variable #512 is continued up to the high speed mold opening start position b #515 (step S3). . Note that the ejector starting operation described above is performed together with the mold opening operation without interrupting the mold opening. Next, macro variable #51 is set to high-speed mold opening speed v 2 , which is the memory content of macro variable #516.
The mold is opened to the low speed mold opening start position c stored in step S4 (step S4), and then macro variable #51
The mold is moved to the mold opening completion position d#503 at the low mold opening speed v3 , which is the memory content at address 8, and the mold opening is completed.

一方、エジエクト開始位置e#519が高速型
開き開始位置b#515を上回るように設定され
ている場合には(ステツプS1)、マクロ変数#5
19と、#517の記憶値を比較してエジエクト
開始位置e#519が低速型開き開始位置c#5
17以上か否か判別する(ステツプS6)。そし
て、エジエクト開始位置e#519が大きいと
き、すなわち高速型開き開始位置b#515と低
速型開き開始位置c#517との中間に設定され
ていれば(ステツプS6)、各マクロ変数の記憶値
を用いて以下の処理を行う。すなわち、型閉じ位
置aOから高速型開き開始位置b#515までに
互り、低速度v1#512で、次いで、エジエクタ
開始位置e#519まで高速の型開き速度v2#5
16で型開きを行い(ステツプS7、S8)、型締機
構が当該位置e#519に達したときMコードを
出力し前述同様エジエクタ装置2の作動を開始さ
せると共に当該作動開始時からクランプの低速型
開き開始位置c#517への到達時まで高速型開
き速度v2#516で型開きを行い(ステツプ
S9)、その後低速型開き速度v3#518での型開
き動作を継続し型開き完了位置d#503に到達
したときこれを終了する(ステツプS10)。
On the other hand, if eject start position e#519 is set to exceed high-speed mold opening start position b#515 (step S1), macro variable #5
19 and the stored value of #517, the eject start position e#519 is the low speed mold opening start position c#5
It is determined whether the number is 17 or more (step S6). Then, when the eject start position e#519 is large, that is, set between the high speed mold opening start position b#515 and the slow mold opening start position c#517 (step S6), the stored value of each macro variable Perform the following processing using . That is, from the mold closing position aO to the high speed mold opening start position b #515, the mold opening speed is low, v 1 #512, and then the high mold opening speed v 2 #5 is reached from the ejector start position e #519.
The mold is opened in step 16 (steps S7 and S8), and when the mold clamping mechanism reaches the position e#519, it outputs the M code and starts the operation of the ejector device 2 as described above, and also starts the clamp at low speed from the start of the operation. Mold opening is performed at high mold opening speed v 2 #516 until the mold opening start position c#517 is reached (step
S9), and then continues the mold opening operation at the low mold opening speed v 3 #518 and ends when the mold opening completion position d#503 is reached (step S10).

エジエクト開始位置e#519が低速型開き開
始位置c#517と型開き完了位置d#503と
の中間にあると判別された場合(ステツプS1、
S6、S11)、高速型開き開始位置b#515まで
は低速型開き速度v1#512、次いで低速型開き
開始位置c#517まで高速型開き速度v2#51
6で型開き動作を行い(ステツプS12、S13)、こ
れに続く低速型開き速度v3#518の型開き動作
により型締機構がエジエクト開始位置e#515
に達したときMコードを出力し、エジエクタ装置
2を作動開始させ、当該作動開始時以降型締機構
が型開き完了位置d#503に達するまで低速型
開き速度v3#518で型開きを継続する(ステツ
プS14、S15)。
If it is determined that the eject start position e#519 is located between the low speed mold opening start position c#517 and the mold opening completion position d#503 (step S1,
S6, S11), low mold opening speed v 1 #512 until high speed mold opening start position b #515, then high mold opening speed v 2 #51 until low speed mold opening start position c #517
The mold opening operation is performed at step 6 (steps S12 and S13), and the mold opening operation at low mold opening speed v 3 #518 moves the mold clamping mechanism to the eject start position e#515.
When the M code is reached, the M code is output, the ejector device 2 starts operating, and the mold opening continues at a low mold opening speed v 3 #518 from the start of operation until the mold clamping mechanism reaches the mold opening completion position d#503. (steps S14, S15).

一方、エジエクト開始位置e#519が型開き
位置と等しいかこれを上回る値に設定されていれ
ば(ステツプS1、S6、S11)、高速型開き開始位
置b#515までは低速度v1#512で、低速型
開き開始位置c#517までは高速度v2#516
でさらに型開き完了位置dまで低速度v3#518
で型開きを行い(ステツプS16〜S18)、型締機構
が型開き完了位置d#503に達したとき型開き
動作を終えると同時にエジエクタ装置2がMコー
ド出力に応動してその動作を開始する(ステツプ
S19)。
On the other hand, if the eject start position e#519 is set to a value equal to or greater than the mold opening position (steps S1, S6, S11), the low speed v 1 #512 is maintained until the high speed mold opening start position b#515. Then, high speed v 2 #516 until low speed mold opening start position c#517
Then continue at low speed v 3 #518 to the mold opening completion position d.
The mold is opened (steps S16 to S18), and when the mold clamping mechanism reaches the mold opening completion position d#503, the mold opening operation is finished and at the same time, the ejector device 2 starts its operation in response to the M code output. (step
S19).

発明の効果 上述のように、本発明によれば、各金型速度を
設定した制御パターンに従い、数値制御装置にて
型締機構の型開き制御を行うと共に、型締機構が
該エジエクト開始位置に達したことを数値制御装
置の有するM機能によつて型開き制御を実行しつ
つエジエクタ装置の作動を開始させるようにした
ので、型締機構の型開き動作を中断させることな
くエジエクタ装置の作動を開始できる射出成形機
のエジエクタ制御方式を提供できる。
Effects of the Invention As described above, according to the present invention, the mold opening control of the mold clamping mechanism is performed by the numerical control device according to the control pattern in which each mold speed is set, and the mold clamping mechanism is moved to the eject start position. The M function of the numerical control device is used to control the mold opening while starting the operation of the ejector device. It is possible to provide an ejector control method for an injection molding machine that can be started.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、本発明の一実施例による射出成形機
の要部構成図、第2図は、型開き制御パターンを
エジエクト開始位置と共に示すグラフ、第3図
は、数値制御装置で実行される制御プログラムの
フローチヤートである。 1……型締機構、2……エジエクタ装置、3…
…数値制御装置、8……CRTデイスプレイ付操
作盤。
Fig. 1 is a diagram showing the main parts of an injection molding machine according to an embodiment of the present invention, Fig. 2 is a graph showing a mold opening control pattern along with an eject start position, and Fig. 3 is a diagram showing a mold opening control pattern executed by a numerical control device. This is a flowchart of a control program. 1... Mold clamping mechanism, 2... Ejector device, 3...
...Numerical control device, 8...Operation panel with CRT display.

Claims (1)

【特許請求の範囲】[Claims] 1 型締機構及びエジエクタ装置を数値制御装置
によつて駆動制御されるサーボモータで駆動する
ようにした射出成形機において、設定手段によつ
て型開き速度切換位置、当該区間の型開き速度及
びエジエクタ作動開始位置を設定し、上記数値制
御装置は設定された型開き速度、型開き速度切換
位置に従つて上記設定されたエジエクタ作動開始
位置まで上記型締機構を駆動し、エジエクタ作動
開始位置に達すると数値制御装置が有するM機能
によつて上記エジエクタ装置を駆動開始させると
共に上記型締機構を設定された型開き速度、速度
切換位置に従つて駆動制御するようにした射出成
形機のエジエクタ制御方式。
1. In an injection molding machine in which the mold clamping mechanism and ejector device are driven by a servo motor that is drive-controlled by a numerical control device, the mold opening speed switching position, the mold opening speed in the relevant section, and the ejector are controlled by the setting means. The operation start position is set, and the numerical control device drives the mold clamping mechanism to the set ejector operation start position according to the set mold opening speed and mold opening speed switching position, and reaches the ejector operation start position. Then, the ejector device is started to be driven by the M function of the numerical control device, and the mold clamping mechanism is driven and controlled according to the set mold opening speed and speed switching position. .
JP9120885A 1985-04-30 1985-04-30 Control method for ejector of injection molding machine Granted JPS61249723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9120885A JPS61249723A (en) 1985-04-30 1985-04-30 Control method for ejector of injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9120885A JPS61249723A (en) 1985-04-30 1985-04-30 Control method for ejector of injection molding machine

Publications (2)

Publication Number Publication Date
JPS61249723A JPS61249723A (en) 1986-11-06
JPH0251378B2 true JPH0251378B2 (en) 1990-11-07

Family

ID=14020007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9120885A Granted JPS61249723A (en) 1985-04-30 1985-04-30 Control method for ejector of injection molding machine

Country Status (1)

Country Link
JP (1) JPS61249723A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003372C1 (en) * 1990-02-05 1991-07-18 Richard 8057 Eching De Herbst
JPH04207989A (en) * 1990-11-30 1992-07-29 Fanuc Ltd Injection molding machine provided with drive motor having variable torque characteristic
JP5123413B2 (en) * 2011-04-26 2013-01-23 ファナック株式会社 Method and apparatus for controlling mold opening / closing speed of injection molding machine
JP6400510B2 (en) * 2015-02-27 2018-10-03 住友重機械工業株式会社 Injection molding machine and operation screen of injection molding machine
JP6169634B2 (en) * 2015-03-06 2017-07-26 ファナック株式会社 Injection molding machine provided with ejector and ejector operation method of injection molding machine

Also Published As

Publication number Publication date
JPS61249723A (en) 1986-11-06

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