JPH01171828A - Mold opening and closing control device of injection molding machine - Google Patents
Mold opening and closing control device of injection molding machineInfo
- Publication number
- JPH01171828A JPH01171828A JP33170587A JP33170587A JPH01171828A JP H01171828 A JPH01171828 A JP H01171828A JP 33170587 A JP33170587 A JP 33170587A JP 33170587 A JP33170587 A JP 33170587A JP H01171828 A JPH01171828 A JP H01171828A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- speed
- mold closing
- closing
- distance
- 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
- 238000001746 injection moulding Methods 0.000 title claims description 20
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
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型開閉制御装置に係わるり、特に
型閉め時あるいは型開き時に移動金型を移動する際の低
速走行の距離の設定を容易にした射出成形機の型開閉制
御装置に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a mold opening/closing control device for an injection molding machine, and in particular to a device for controlling the opening and closing of a mold in an injection molding machine. This invention relates to a mold opening/closing control device for an injection molding machine that is easy to set up.
（従来技術）
第４図は射出成形機の型開閉制御装置の概略図を示すも
のであり固定金型Ｆ、移動金型Ｍ、型開閉ピストン６、
型開閉シリンダ５、制御装置１、油圧ユニット２、ポン
プ３、油圧タンク４、位置スケール７、位置検出ヘッド
８から構成されている。制御装置１には型開閉動作に必
要なパラメータを入力するパラメータ入力部１−１と入
力したパラメータや機械の状態を表示する表示部１−２
がある。金型（移動金型Ｍ）の開閉動作は、制御装置１
からの型開閉指令信号、パラメータ入力部１−１で設定
された設定値に基づく速度指令信号を油圧ユニット２に
入力することにより型開閉シリンダ５の油室５−１．５
−２に流入、流出させる油の流入、流出の方向並びに油
量を変化させることにより型開閉ピストン６に加える圧
力の方向、大きさを変化させて行われる。移動金型Ｍの
位置は型閉完了点を原点として位置スケール７にそつて
、移動金型Ｍにアームを介して収り付けた位置検出ヘッ
ド８を移動させることにより位置パルスＰを発生させ原
点からのパルス数をカウントする事により原点からの現
在位置が表示部１−２に表示されるようになっている。(Prior art) Fig. 4 shows a schematic diagram of a mold opening/closing control device of an injection molding machine, and shows a fixed mold F, a movable mold M, a mold opening/closing piston 6,
It is composed of a mold opening/closing cylinder 5, a control device 1, a hydraulic unit 2, a pump 3, a hydraulic tank 4, a position scale 7, and a position detection head 8. The control device 1 includes a parameter input section 1-1 for inputting parameters necessary for mold opening/closing operations, and a display section 1-2 for displaying input parameters and machine status.
There is. The opening/closing operation of the mold (moving mold M) is controlled by the control device 1.
The oil chamber 5-1.5 of the mold opening/closing cylinder 5 is inputted to the hydraulic unit 2 by a mold opening/closing command signal from the mold opening/closing command signal and a speed command signal based on the set value set in the parameter input section 1-1.
This is done by changing the direction and magnitude of the pressure applied to the mold opening/closing piston 6 by changing the direction and amount of oil flowing into and out of the mold opening/closing piston 6. The position of the movable mold M is determined by moving the position detection head 8 attached to the movable mold M via an arm along the position scale 7 with the mold closing completion point as the origin, thereby generating a position pulse P and returning to the origin. The current position from the origin is displayed on the display section 1-2 by counting the number of pulses from the origin.
第５図に型開閉動作時の移動金型Ｍの位置と速度の関係
を示す。同図で点Ｂは型閉め完了点を、点Ａは型開き完
了点をあられし距離ＡＢが型開閉ストロークしてある。FIG. 5 shows the relationship between the position and speed of the movable mold M during mold opening/closing operations. In the figure, point B is the point at which the mold has been closed, point A is the point at which the mold has been opened, and the distance AB is the mold opening/closing stroke.
Ｖｃは型閉の際の位置と速度の関係を示すものであり、
型開き完了点Ａで起動された後、高速型閉め速度まで増
速され高速型閉め速度で低速型閉め位置Ｂ１まで移動し
た後、減速が開始され低速型閉め速度以下に減速された
（減速点Ｂ２）後、固定金型Ｆと接触するようになって
いる。同様にＶＯは型開きの際の移動金型Ｍの位置と速
度の関係を示すものであり型閉め完了点Ｂで起動され高
速型開き速度まで増速され高速型開き速度で低速型開き
開始位置Ａ１まで移動した後、減速が開始され型開き完
了点で停止するようになっている。型開閉動作をさせる
に際して移動金型Ｍに以上にのべるような動きをさせる
には射出成形機に金型を取り付けた後、制御装置１のパ
ラメータ入力部１−１からストロークし、高速型閉め速
度、低速型閉め開始位置Ｂｔ、高速型開き速度、低速型
開き開始位置Ａ□、型開き完了点Ａをパラメータとして
入力しなければならない。Vc indicates the relationship between position and speed when closing the mold,
After being started at the mold opening completion point A, the speed was increased to the high mold closing speed, and after moving to the low speed mold closing position B1 at the high mold closing speed, deceleration was started and the speed was reduced to below the low mold closing speed (deceleration point After B2), it comes into contact with the fixed mold F. Similarly, VO indicates the relationship between the position and speed of the moving mold M when opening the mold, and is started at the mold closing completion point B, increases the speed to a high mold opening speed, and then reaches the low speed mold opening starting position at the high mold opening speed. After moving to A1, deceleration is started and it stops at the point where the mold opening is completed. In order to make the movable mold M move more smoothly when opening and closing the mold, after installing the mold in the injection molding machine, stroke from the parameter input section 1-1 of the control device 1 and set the high-speed mold closing speed. , low-speed mold closing start position Bt, high-speed mold opening speed, low-speed mold opening start position A□, and mold opening completion point A must be input as parameters.
（発明が解決しようとする問題点〉
以上のパラメータの設定に際して低速型閉め開始位置Ｂ
１の設定は移動速度が低速型閉め速度以下になってから
の移動距離Ｌ（減速点Ｂ２から型閉め完了点Ｂまでの距
離）が出来るだけ短くなるように設定することが望まし
い。何故なら低速域が長いことはサイクルタイムを長く
する事になり生産性を低下させる原因になるからである
。しかし低速型閉め位置Ｂ□を型閉め完了位置Ｂに近付
けすぎると移動速度が低速型閉め速度以下に減少しない
うちに固定金型Ｆと衝突する事になり金型破損の原因に
なる。従来低速型閉め位置Ｂ１の設定は、パラメータ設
定作業の始めにＢ Ｂ １の距離を安全側に十分長くと
り、型開閉動作の状態をオペレータが目で観察しなから
徐々に短くしていくことにより行ない、これはオペレー
タにとって比較的面倒な注意を必要とする作業であった
。(Problem to be solved by the invention) When setting the above parameters, the low speed mold closing start position B
1 is desirably set so that the moving distance L (distance from deceleration point B2 to mold closing completion point B) after the moving speed becomes lower than the low mold closing speed is as short as possible. This is because a long low speed range lengthens the cycle time and causes a decrease in productivity. However, if the low-speed mold closing position B□ is brought too close to the mold closing completion position B, it will collide with the stationary mold F before the moving speed decreases below the low-speed mold closing speed, causing mold damage. Conventionally, the setting of the low-speed mold closing position B1 was to set the distance of B B1 sufficiently long on the safe side at the beginning of the parameter setting work, and gradually shorten it without the operator visually observing the state of the mold opening/closing operation. This was a relatively troublesome and careful task for the operator.
（発明の目的）
本発明は、上記の問題を解決するなめに成されたもので
あり、本発明の目的は移動金型の低速走行の距離の設定
を容易にした射出成形機の型開閉制御装置を提供するに
ある。(Object of the Invention) The present invention has been made to solve the above problems, and the purpose of the present invention is to provide a mold opening/closing control for an injection molding machine that facilitates the setting of the low-speed traveling distance of a moving mold. We are in the process of providing equipment.
（発明の概要）
本発明の射出成形機の型開閉制御装置は、金型が開いた
状態から移動金型を高速で型閉め位置近くまで送り、型
閉め位置手前で所定の速度（低速型閉じ速度）以下に減
速し、低速型閉じ速度以下の速度で固定金型と接触させ
る射出成形機の型閉制御装置において、送り速度が前記
低速型閉じ速度以下に減速される位置（減速点〉を検出
する手段と、前記検出した減速点から型閉め完了位置ま
での距離を測定する手段と、前記測定した距離を表示す
る手段と、を備えたことを特徴とする。(Summary of the Invention) The mold opening/closing control device of the injection molding machine of the present invention transports the movable mold at high speed from the mold open state to near the mold closing position, and returns the movable mold at a predetermined speed (low speed mold closing) before the mold closing position. In a mold closing control device for an injection molding machine that decelerates the feed speed to a speed lower than the low mold closing speed and contacts a fixed mold at a speed lower than the low mold closing speed, the position (deceleration point) at which the feed speed is decelerated to the low mold closing speed The present invention is characterized by comprising a detecting means, a means for measuring a distance from the detected deceleration point to a mold closing completion position, and a means for displaying the measured distance.
（発明の実施例）
以下に本発明の実施例について説明する。本発明は以下
のブロック図で示す部分を新たに制御装置１に付加する
ことにより実現される。第１図において設定部１０には
低速型閉め速度が単位時間当たりの移動距離あるいは高
速型閉め速度に対するパーセントで設定される。カウン
ト部１４では移動金型Ｍが移動中、位置検出機８から構
成される装置パルスを一定時間間隔（周期）ごとにカウ
ントしカウント値を比較部１６に出力する。パルス数換
算部１２では設定部１０で設定した速度をカウント部１
４のカウント周期当たりの移動距離に対応した位置パル
ス数に換算する。比較部１６ではパルス数換算部１２で
求めた値とカウント部１４でカウントした値を比較し一
致したとき位置検出部１８に一致信号を出力する。位置
検出部１８では設定した原点Ｂから移動金型Ｍの現在位
置までの距離が位置検出機からの出力信号パルスＰをア
ップカウントあるいはダウンカウントして得られるよう
になっており比較部１６からの一致信号が入力された時
その時点のカウント値が低速型閉め速度に減速された位
置（減速点Ｂ２ ）を示す値として記憶され長さの単位
に換算してＢ２位置表示部２０に送られ表示される。オ
ペレータは表示されたＢ２の位置（原点から低速型閉め
速度の開始点Ｂ２間での距離）をみて低速型閉め開始位
置Ｂｌの位置をパラメータ設定部１−１で設定し直す。(Examples of the invention) Examples of the invention will be described below. The present invention is realized by newly adding parts shown in the block diagram below to the control device 1. In FIG. 1, the low mold closing speed is set in the setting section 10 as a moving distance per unit time or as a percentage of the high mold closing speed. The counting section 14 counts device pulses from the position detector 8 at regular time intervals (periods) while the movable mold M is moving, and outputs the count value to the comparison section 16 . The pulse number conversion unit 12 converts the speed set in the setting unit 10 into the count unit 1.
It is converted into the number of position pulses corresponding to the moving distance per count period of 4. The comparison section 16 compares the value obtained by the pulse number conversion section 12 and the value counted by the counting section 14, and outputs a coincidence signal to the position detection section 18 when they match. In the position detection section 18, the distance from the set origin B to the current position of the movable mold M can be obtained by up-counting or down-counting the output signal pulse P from the position detection device. When a coincidence signal is input, the count value at that time is stored as a value indicating the position at which the speed is decelerated to a low mold closing speed (deceleration point B2), converted into a length unit, and sent to the B2 position display section 20 for display. be done. The operator looks at the displayed position B2 (distance from the origin to the starting point B2 of the low speed mold closing speed) and resets the position of the low speed mold closing start position Bl using the parameter setting section 1-1.
第２図は本発明の２番目の実施例を示すブロック図であ
る。同図では減速点Ｂ２位置を表示するに際し複数回の
型開閉動作を行い、複数回検出したＢ２の位置の平均を
Ｂ２位置表示部に表示するようになっている。設定部１
０では低速型閉め速度と共に測定回数を設定し、位置検
出部１８では検出した結果を設定した回数だけ記憶部２
２に記憶し、演算部２４で平均した後Ｂ２位置表示部２
０に表示する。オペレータは表示されたＢ２の位置（原
点から減速点Ｂ２までの距Ｎ）をみて低速型閉め開始位
置Ｂ１の位置をパラメータ設定部１−１で設定し直す。FIG. 2 is a block diagram showing a second embodiment of the invention. In the figure, when displaying the deceleration point B2 position, the mold opening/closing operation is performed a plurality of times, and the average of the B2 positions detected a plurality of times is displayed on the B2 position display section. Setting section 1
0, the number of measurements is set together with the low mold closing speed, and the position detection unit 18 stores the detected results in the storage unit 2 for the set number of times.
2 and averaged by the calculation unit 24, the B2 position display unit 2
Display at 0. The operator looks at the displayed position B2 (distance N from the origin to the deceleration point B2) and resets the low speed mold closing start position B1 using the parameter setting section 1-1.
第３図は本発明の３番目の実施例を示すブロック図であ
る。同図では検出した減速点Ｂ２の位置に基づいてパラ
メータ設定部１−１で設定した低速型閉め開始位置Ｂ１
を自動的に修正するようになっている。設定部１０では
低速型閉め速度、測定回数のほか指定したい減速点Ｂ′
２の位置（原点Ｂから減速点Ｂ’２までの距離）が入力
される。演算部２４では測定して得られた減速点Ｂ２の
位置から設定したＢ′２の位置を引き算しその結果を８
１位置設定部２６に送りＢ１位置設定部２６では送られ
た値だけＢ１位置を原点に近付けるように修正する。FIG. 3 is a block diagram showing a third embodiment of the present invention. In the figure, the low speed mold closing start position B1 is set by the parameter setting section 1-1 based on the position of the detected deceleration point B2.
is automatically corrected. In the setting section 10, in addition to the low mold closing speed and the number of measurements, you can also specify the deceleration point B' that you want to specify.
2 position (distance from origin B to deceleration point B'2) is input. The calculation unit 24 subtracts the set position of B'2 from the measured deceleration point B2 position and calculates the result as 8.
The B1 position setting section 26 corrects the B1 position so as to move it closer to the origin by the value sent.
以上の説明では型閉め動作時の低速走行の距離の検出に
ついてのみ説明したが型開き動作時の低速走行の距離も
同様にして検出できることは勿論である。 “
（発明の効果）
以上にのべたように本発明によれば型開閉動作における
低速走行の距離を簡単に設定できるので、パラメータ設
定に要する時間を短くすることが可能になり、生産性を
向上させる射出成形機の型閉制御装置を提供することが
できる。In the above explanation, only the detection of the distance traveled at low speed during the mold closing operation has been described, but it goes without saying that the distance traveled at low speed during the mold opening operation can also be detected in the same manner. (Effects of the Invention) As described above, according to the present invention, it is possible to easily set the distance of low-speed travel during mold opening/closing operations, which makes it possible to shorten the time required for parameter setting and improve productivity. A mold closing control device for an injection molding machine can be provided.
第１図は本発明の第１の実施例を示すブロック図、第２
図は本発明の第２の実施例を示すブロック図、第３図は
本発明の第３の実施例を示すブロック図、第４図は射出
形成機の型開閉制御装置の概略図、第５図は型開閉動作
時の移動金型の位置と速度の関係を示す図である。
出願人 東芝機械株式会社
第１図
第２図
第３図
適４図
第５図
手続補正書（方式）
昭和６３年４月に日
特許庁長官 小 川 邦 夫 殿
１、事件の表示
昭和６２年特許願第３３１７０５号
２、発明の名称
射出成形機の型開閉制御装置
３、補正をする者
事件との関係 特許出願人
〒 １０４
住所 東京都中央区銀座４丁目２番１１号４、補正命
令の日付（発送臼）
昭和６３年３月２９日
明細書の第１頁第３行目の発明の名称が −゛−″「射
出成形機の型閉制御装置」とあるのを「射出成形機の型
開閉制御装置」と訂正する。FIG. 1 is a block diagram showing a first embodiment of the present invention;
The figure is a block diagram showing a second embodiment of the present invention, FIG. 3 is a block diagram showing a third embodiment of the present invention, FIG. 4 is a schematic diagram of a mold opening/closing control device of an injection molding machine, and FIG. The figure shows the relationship between the position and speed of the movable mold during mold opening/closing operations. Applicant Toshiba Machine Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Procedural amendment (method) In April 1985, Director General of the Japan Patent Office Kunio Ogawa 1, Indication of the case 1988 Patent Application No. 331705 2, Name of the invention: Mold opening/closing control device for an injection molding machine 3, Person making the amendment Relationship to the case Patent applicant: Address: 4-2-11-4, Ginza, Chuo-ku, Tokyo 104 Address: 4-2-11-4 Ginza, Chuo-ku, Tokyo; Date (dispatch mill) March 29, 1985 The name of the invention on the 3rd line of page 1 of the specification is -゛-''"Mold closing control device for injection molding machine" is replaced with "Mold closing control device for injection molding machine". "Mold opening/closing control device" is corrected.
Claims (4)
置近くまで送り、型閉め位置手前で所定の速度（低速型
閉じ速度）以下に減速し、低速型閉じ速度以下の速度で
固定金型と接触させる射出成形機の型閉制御装置におい
て、送り速度が前記低速型閉じ速度以下に減速される位
置（減速点）を検出する手段と、前記検出した減速点か
ら型閉め完了位置までの距離を測定する手段と、前記測
定した距離を表示する手段と、を備えたことを特徴とす
る射出成形機の型開閉制御装置。(1) From the mold open state, move the mold at high speed to near the mold closing position, decelerate to a predetermined speed (low mold closing speed) or less before the mold closing position, and at a speed lower than the low mold closing speed. In a mold closing control device of an injection molding machine that is brought into contact with a fixed mold, means for detecting a position (deceleration point) at which the feed speed is decelerated below the low mold closing speed, and a mold closing completion position from the detected deceleration point. 1. A mold opening/closing control device for an injection molding machine, comprising: a means for measuring a distance to a distance from the machine; and a means for displaying the measured distance.
設定した回数測定し、測定した回数で平均した値を減速
点からの型閉め完了位置までの距離として表示すること
を特徴とした特許請求範囲第（１）項記載の射出成形機
の型開閉制御装置。(2) The distance from the deceleration point to the mold closing completion position is measured an arbitrarily set number of times, and the average value over the measured times is displayed as the distance from the deceleration point to the mold closing completion position. A mold opening/closing control device for an injection molding machine according to claim (1).
置近くまで送り、型閉め位置手前で所定の速度（低速型
閉じ速度）以下に減速し、低速型閉じ速度以下の速度で
固定金型と接触させる射出成形機の型閉制御装置におい
て、送り速度が前記低速型閉じ速度以下に減速される位
置（減速点）を検出する手段と、前記検出した減速点か
ら型閉め完了位置までの距離を測定する手段と、前記測
定した距離に基づいて減速点をシフトさせる手段と、を
有することを特徴とした射出成形機の型開閉制御装置。(3) From the mold open state, move the mold at high speed to near the mold closing position, decelerate to a predetermined speed (low mold closing speed) or less before the mold closing position, and at a speed lower than the low mold closing speed. In a mold closing control device of an injection molding machine that is brought into contact with a fixed mold, means for detecting a position (deceleration point) at which the feed speed is decelerated below the low mold closing speed, and a mold closing completion position from the detected deceleration point. 1. A mold opening/closing control device for an injection molding machine, comprising: means for measuring a distance to a point from which a deceleration point is reached; and means for shifting a deceleration point based on the measured distance.
結果に基づいて、減速点を、減速点から型閉め完了位置
までの距離がゼロあるいは事前に設定した最小距離にな
るようにシフトさせることを特徴とした特許請求範囲第
（３）項記載の射出成形機の型開閉制御装置。(4) Based on the measured distance from the deceleration point to the mold closing completion position, shift the deceleration point so that the distance from the deceleration point to the mold closing completion position is zero or a preset minimum distance. A mold opening/closing control device for an injection molding machine according to claim (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33170587A JPH01171828A (en) | 1987-12-25 | 1987-12-25 | Mold opening and closing control device of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33170587A JPH01171828A (en) | 1987-12-25 | 1987-12-25 | Mold opening and closing control device of injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01171828A true JPH01171828A (en) | 1989-07-06 |
| JPH0528970B2 JPH0528970B2 (en) | 1993-04-28 |
Family
ID=18246667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33170587A Granted JPH01171828A (en) | 1987-12-25 | 1987-12-25 | Mold opening and closing control device of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01171828A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0473523U (en) * | 1990-11-06 | 1992-06-29 | ||
| US5863475A (en) * | 1996-09-27 | 1999-01-26 | Kabushiki Kaisha Meiki Seisakusho | Control method of an injection molding machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4959160A (en) * | 1972-10-07 | 1974-06-08 | ||
| JPS5872431A (en) * | 1981-10-28 | 1983-04-30 | Toshiba Mach Co Ltd | Brake gear for injection molding machine |
| JPS58194524A (en) * | 1982-05-10 | 1983-11-12 | Tekunopurasu:Kk | Controlling method of operations of opening and closing mold in straight hydraulic mold clamping apparatus |
| JPS61114833A (en) * | 1984-11-09 | 1986-06-02 | Fanuc Ltd | System of displaying graphical state of operation of injection molding machine |
| JPS61197214A (en) * | 1985-02-27 | 1986-09-01 | Okuma Mach Works Ltd | Monitoring method for actuation of injection molding machine |
-
1987
- 1987-12-25 JP JP33170587A patent/JPH01171828A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4959160A (en) * | 1972-10-07 | 1974-06-08 | ||
| JPS5872431A (en) * | 1981-10-28 | 1983-04-30 | Toshiba Mach Co Ltd | Brake gear for injection molding machine |
| JPS58194524A (en) * | 1982-05-10 | 1983-11-12 | Tekunopurasu:Kk | Controlling method of operations of opening and closing mold in straight hydraulic mold clamping apparatus |
| JPS61114833A (en) * | 1984-11-09 | 1986-06-02 | Fanuc Ltd | System of displaying graphical state of operation of injection molding machine |
| JPS61197214A (en) * | 1985-02-27 | 1986-09-01 | Okuma Mach Works Ltd | Monitoring method for actuation of injection molding machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0473523U (en) * | 1990-11-06 | 1992-06-29 | ||
| US5863475A (en) * | 1996-09-27 | 1999-01-26 | Kabushiki Kaisha Meiki Seisakusho | Control method of an injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0528970B2 (en) | 1993-04-28 |
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