JPS6135923B2 - - Google Patents
Info
- Publication number
- JPS6135923B2 JPS6135923B2 JP3555981A JP3555981A JPS6135923B2 JP S6135923 B2 JPS6135923 B2 JP S6135923B2 JP 3555981 A JP3555981 A JP 3555981A JP 3555981 A JP3555981 A JP 3555981A JP S6135923 B2 JPS6135923 B2 JP S6135923B2
- Authority
- JP
- Japan
- Prior art keywords
- mold clamping
- clamping force
- mold
- force signal
- toggle
- 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
Links
- 238000000034 method Methods 0.000 claims description 20
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 3
- 238000009429 electrical wiring Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000000694 effects Effects 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
- B29C45/1751—Adjustment means allowing the use of moulds of different thicknesses
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明はトグル式型締装置を有する射出成形機
に係り、特に成形用金型の所要型締力を自動的に
調整、設定する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an injection molding machine having a toggle type mold clamping device, and more particularly to a method for automatically adjusting and setting the required mold clamping force of a molding die.
通常、トグル式型締装置を有する射出成形機の
金型の型締力は、トグルがタイバ(通常4本)を
何mm伸ばすかによつて決り、その設定は次の如く
行われる。即ち第1図に示すように、トグルを伸
ばしきつた状態で金型7,8を接触させ零点位置
調整を行い、次にトグルを縮小して停止させてか
ら、タイバ6の型締ハウジング3側端部に設けた
ネジ部6aに螺合するタイバナツト17を回転さ
せて、型締ハウジング3、短リンク取付部13、
短リンク11、長リンク9、長リンク取付部1
2、可動盤2、クロスリンク10、クロスヘツド
14、型締シリンダ4(ピストン16、ピストン
ロツド15)等から構成されるトグル装置全体を
タイバ6に沿つて固定盤1の方向に所定量移動さ
せた時点でタイバナツト17の回転を停止させる
ことによつて型締力の設定を行つている。なお、
5は固定側タイバナツトである。またタイバナツ
ト17を回転する手段としては、小型機では人力
によるウオーム方式、大型機では電動機、油圧モ
ータによるウオーム方式、チエーン方式、大歯車
方式等の手段が採用されており、またトグル装置
の所定移動量はタイバナツト17の回転数として
これをポテンシヨメータ、あるいはパルス発生器
(エンコーダ)により電圧値又はパルス数に変換
することによつて検出するのが普通である。 Normally, the mold clamping force of the mold of an injection molding machine having a toggle-type mold clamping device is determined by how many mm the tie bars (usually four) are extended by the toggle, and the setting is performed as follows. That is, as shown in FIG. 1, the zero point position is adjusted by bringing the molds 7 and 8 into contact with each other with the toggle fully extended, then retracting the toggle to stop it, and then tightening the tie bar 6 on the side of the mold clamping housing 3. By rotating the tie nut 17 that is screwed into the threaded part 6a provided at the end, the mold clamping housing 3, the short link attachment part 13,
Short link 11, long link 9, long link attachment part 1
2. When the entire toggle device consisting of the movable platen 2, crosslink 10, crosshead 14, mold clamping cylinder 4 (piston 16, piston rod 15), etc. is moved a predetermined amount in the direction of the fixed platen 1 along the tie bars 6. The mold clamping force is set by stopping the rotation of the tie nut 17. In addition,
5 is a fixed side tie nut. In addition, as means for rotating the tie nut 17, a worm method using human power is used for small machines, a worm method using an electric motor or hydraulic motor, a chain method, a large gear method, etc. are used for large machines, and a predetermined movement of a toggle device is used. The quantity is usually detected by converting the rotational speed of the tie nut 17 into a voltage value or pulse number using a potentiometer or a pulse generator (encoder).
次に第1図により従来の自動型締力設定方法に
ついて詳述する。薄い金型から厚い金型に交換す
る場合はまず薄い金型7,8を固定盤1及び可動
盤2より取外したあと、型締シリンダ4の操作に
より可動盤2を後退させて型開きし、固定盤1と
可動盤2の間に薄い金型7,8に代えて厚い金型
7′,8′を搬入してから、型締シリンダ4の操作
により可動盤2を前進させて低油圧で固定盤1に
押し付けて型閉じし(第2図参照)、金型7′,
8′をそれぞれボルト等により固定盤1及び可動
盤2に取付ける。しかる後、金型8′を取付けた
可動盤2を型締シリンダ4の操作により後退させ
てから、電動機、油圧モータ等によりウオーム軸
(第4図参照)を回転することによりタイバナツ
ト17を回転させて、トグル装置全体を後退させ
固定盤1から遠ざける。その途中で型締シリンダ
4を低油圧で操作して型閉動作を行う。タイバナ
ツト17の回転数はポテンシヨメータやパルス発
生器等により電圧値又はパルス数に変換されてコ
ントローラに入力され、その入力信号値が所定値
になり、短リンク11、長リンク9が伸びきつた
状態で金型7′,8′間に若干の隙間ができるまで
コントローラより出力される信号により上記のト
グル装置の前進・後退と、型開閉動作を繰返して
行う。最終的にトグルが伸びきつた状態で金型
7′,8′間に隙間ができたら、次に短リンク1
1、長リンク9が伸びきつたまま、ウオーム軸を
上記と逆に回転することによりタイバナツト17
を逆転させてトグル装置全体を前進させ、金型
7′,8′が接触した時の油圧の上昇、あるいは電
流値の増大をセンサー等により検知したら、タイ
バナツト17の回転を停止させる。即ち零点位置
を決定した時点でタイバナツト17の回転を停止
させる。この状態で型締シリンダ4を高油圧で操
作して型締を行つても金型7′,8′は接触してい
るのみで型締力は発生しない。次に一度型締シリ
ンダ4を操作して型開きをしてから、タイバナツ
ト17を回転させてトグル装置全体を固定盤1側
へ所定量だけ前進させて型締力の設定を終了す
る。この所定量とは型締力を与えるタイバ伸び量
から予め計算されており、それはウオーム軸の回
転数即ち、タイバナツト17の回転数により設定
される。 Next, a conventional automatic mold clamping force setting method will be explained in detail with reference to FIG. When replacing a thin mold with a thick mold, first remove the thin molds 7 and 8 from the fixed plate 1 and the movable plate 2, and then move the movable plate 2 backward by operating the mold clamping cylinder 4 to open the mold. After introducing thick molds 7' and 8' between the fixed platen 1 and the movable platen 2 instead of the thin molds 7 and 8, the movable platen 2 is moved forward by operating the mold clamping cylinder 4, and the molds are moved with low hydraulic pressure. Close the mold by pressing it against the fixed platen 1 (see Fig. 2), and press the mold 7',
8' are respectively attached to the fixed platen 1 and the movable platen 2 with bolts or the like. Thereafter, the movable platen 2 with the mold 8' attached thereto is moved backward by operating the mold clamping cylinder 4, and the tie nut 17 is rotated by rotating the worm shaft (see Fig. 4) using an electric motor, hydraulic motor, etc. to move the entire toggle device backward and away from the fixed platen 1. During this process, the mold clamping cylinder 4 is operated with low oil pressure to perform mold closing operation. The rotational speed of the tie nut 17 is converted into a voltage value or pulse number by a potentiometer, pulse generator, etc. and input to the controller, and the input signal value becomes a predetermined value, and the short link 11 and long link 9 are fully extended. In this state, the forward and backward movement of the toggle device and the mold opening/closing operations are repeated in response to signals output from the controller until a slight gap is created between the molds 7' and 8'. When the toggle is fully extended and there is a gap between the molds 7' and 8', next short link 1
1. While the long link 9 is fully extended, rotate the worm shaft in the opposite direction to the above to remove the tie bolt 17.
is reversed to move the entire toggle device forward, and when a sensor or the like detects an increase in oil pressure or an increase in current value when the molds 7' and 8' come into contact, the rotation of the tie nut 17 is stopped. That is, the rotation of the tie nut 17 is stopped when the zero point position is determined. In this state, even if the mold clamping cylinder 4 is operated with high hydraulic pressure to perform mold clamping, the molds 7' and 8' are only in contact and no clamping force is generated. Next, the mold clamping cylinder 4 is operated once to open the mold, and the tie nut 17 is rotated to advance the entire toggle device by a predetermined amount toward the fixed platen 1, thereby completing the setting of the mold clamping force. This predetermined amount is calculated in advance from the amount of tie bar extension that provides the mold clamping force, and is set by the number of rotations of the worm shaft, that is, the number of rotations of the tie nut 17.
また、厚い金型7′,8′から薄い金型7,8に
交換する場合は、厚い金型7′,8′を除去後初回
の型閉じでトグルを伸ばしきつた状態でトグル装
置全体を固定盤1側へ厚い金型7′,8′の厚さよ
りも固定盤1と可動盤2の間隔が小さくなるまで
前進させる。この後薄い金型7,8を取付けた
後、前述と同じ要領で型締力の設定を行う。 In addition, when replacing thick molds 7', 8' with thin molds 7, 8, after removing the thick molds 7', 8', the first time the mold is closed, the toggle should be fully extended and the entire toggle device The fixed platen 1 is moved forward until the distance between the fixed platen 1 and the movable platen 2 becomes smaller than the thickness of the thick molds 7' and 8'. Thereafter, after attaching the thin molds 7 and 8, the mold clamping force is set in the same manner as described above.
上述のように金型を交換した場合の従来の自動
型締力設定方法では、零点位置を得るまでに何回
もトグル装置の前進・後退と型開閉動作を繰返さ
なければならず、自動設定時間が長くなる欠点が
あつた。 As mentioned above, in the conventional automatic mold clamping force setting method when replacing the mold, the toggle device must be moved forward and backward many times and the mold opening and closing operations must be repeated many times before the zero point position is obtained, and the automatic setting time is It has the disadvantage that it takes a long time.
また、油圧作動中子を持つ金型で成形する場
合、構造的に種類が多く、中子の作動のタイミン
グのとり方が色々あり、例えば、金型を閉じる前
に中子を入れるタイプ、閉じてから中子を入れる
タイプ、閉じつつ入れるタイプ、さらに金型を開
く前に抜くタイプ、開いてから抜くタイプ、開き
ながら抜くタイプとあり、全部で金型を入れるタ
イプ(3種類)と抜くタイプ(3種類)との組合
せ9種類のタイプがあるが、この作動のタイミン
グを誤るとほとんどの場合、金型を破損する。従
つて従来の型締力自動設定方法では、何回も型開
閉を繰返すのでその都度所定のタイミングで油圧
作動中子を作動させねばならないから型締力の自
動設定を開始するまでに油圧作動中子の油圧配管
や電気配線等をすませておかねばならない欠点が
あつた。 In addition, when molding is performed using a mold with a hydraulically operated core, there are many structural types, and there are various ways to set the timing of the core's operation.For example, there are types in which the core is inserted before the mold is closed, There are types that insert the core into the mold, types that insert the core while closing, types that remove the core before opening the mold, types that remove the core after opening, and types that remove the core while opening.In total, there are types that insert the core into the mold (3 types) and types that remove the mold (3 types). There are 9 types of combinations (3 types), but if the timing of this operation is incorrect, the mold will be damaged in most cases. Therefore, in the conventional automatic mold clamping force setting method, since the mold is opened and closed many times, the hydraulic core must be operated at a predetermined timing each time, so it is necessary to operate the hydraulic core at a predetermined timing each time. The drawback was that the secondary hydraulic piping and electrical wiring had to be completed in advance.
本発明は上記の欠点を解消するためになされた
ものであつて、以下第2図及び第3図によつて本
発明の一実施方法を説明する。 The present invention has been made to solve the above-mentioned drawbacks, and one method of implementing the present invention will be explained below with reference to FIGS. 2 and 3.
この実施方法では型締ハウジング3より突出し
たブラケツト18に、型締シリンダ4のピストン
ロツド15の前進により作動せしめられる、定格
型締力を得るための手段、例えばリミツトスイツ
チ19aを、また、型締シリンダ4のピストンロ
ツド15の先端部にはこのリミツトスイツチ19
aを作動させるためのストライカ20を設けてお
く。リミツトスイツチ19aはストライカ20に
より作動せしめられた位置で、金型7′,8′が接
触している状態のとき高圧油により型締を行つた
場合に定格型締力が発生するようなブラケツト1
8の位置に固定されていることは記す迄もない。
またタイバナツト17には第4図示のようにタイ
バナツト17の回転数に対応した型締力信号を出
力する型締力信号発生装置21を連結しておく。
この型締力信号発生装置21としてはポテンシヨ
メータ、パルス発生器(エンコーダ)等を使用す
ることができる。 In this implementation method, a means for obtaining a rated mold clamping force, such as a limit switch 19a, which is activated by the advancement of the piston rod 15 of the mold clamping cylinder 4, is mounted on the bracket 18 protruding from the mold clamping housing 3. This limit switch 19 is installed at the tip of the piston rod 15.
A striker 20 is provided for activating a. The limit switch 19a is in the position activated by the striker 20, and the bracket 1 is set so that the rated mold clamping force is generated when the molds 7' and 8' are in contact and clamped by high pressure oil.
It goes without saying that it is fixed at position 8.
Further, a mold clamping force signal generating device 21 is connected to the tie nut 17, as shown in FIG.
As this mold clamping force signal generating device 21, a potentiometer, a pulse generator (encoder), etc. can be used.
まず薄い金型7,8を固定盤1及び可動盤2よ
り取外した後、型締シリンダ4の操作により可動
盤2を後退させて型開きし、固定盤1と可動盤2
の間に薄い金型7,8に代えて厚い金型7′,
8′を搬入してから、型締シリンダ4の操作によ
り可動盤2を前進させて低油圧で固定盤1に押し
付けて型閉じし、金型7′,8′を固定盤1と可動
盤2で保持したまま、金型7′,8′をそれぞれボ
ルト、ダイクランパ等により固定盤1及び可動盤
2に取付ける。金型7′,8′の取付状態を第2図
に示す。以後、本発明の型締力自動設定開始とな
る。第2図の状態から型締シリンダ4のピストン
ヘツド側シリンダ室に低圧油(圧力10〜15Kg/cm2
位が適当)を供給して、トグルを伸ばす方向に小
さな型締力(この場合は金型7′,8′の接触力)
を金型7′,8′に負荷してこれら金型7′,8′が
離脱しないような状態にしたまま、タイバナツト
17をトグル装置全体を後退させる方向、換言す
れば固定盤1から遠ざかる方向に回転させること
により、短リンク11、長リンク9等よりなるト
グルを徐々に伸ばすと共に、型締シリンダ4のピ
ストンロツド15を型締ハウジング3に対して相
対的に前進させ、このピストンロツド15の前進
によりリミツトスイツチ19aを作動させた時点
から型締力信号発生装置21より得られる定格型
締力信号より連続的に小さくなる型締力信号を制
御盤に入力して予め設定した型締力信号と比較
し、両信号が一致した時点で前記低圧油を遮断す
ると同時にタイバナツト17の回転を停止させる
ことにより型締力を設定する。 First, the thin molds 7 and 8 are removed from the fixed platen 1 and the movable platen 2, and then the movable platen 2 is moved back by operating the mold clamping cylinder 4 to open the mold, and the fixed platen 1 and the movable platen 2 are removed.
In between, instead of thin molds 7 and 8, thick molds 7',
After carrying in the molds 7' and 8', the movable platen 2 is advanced by operating the mold clamping cylinder 4 and pressed against the fixed platen 1 with low hydraulic pressure to close the mold, and the molds 7' and 8' are separated from the fixed platen 1 and the movable platen 2. The molds 7' and 8' are respectively attached to the fixed platen 1 and the movable platen 2 with bolts, die clampers, etc. while holding the molds 7' and 8'. FIG. 2 shows how the molds 7' and 8' are installed. After that, automatic mold clamping force setting of the present invention starts. From the state shown in Fig. 2, low pressure oil (pressure 10 to 15 kg/cm 2
a small mold clamping force (in this case, the contact force between molds 7' and 8') in the direction of extending the toggle.
is applied to the molds 7', 8' so that the molds 7', 8' do not come off, and the tie bolt 17 is moved in a direction in which the entire toggle device is moved backward, in other words, in a direction in which it is moved away from the fixed plate 1. By rotating the toggle, the toggle consisting of the short link 11, long link 9, etc. is gradually extended, and the piston rod 15 of the mold clamping cylinder 4 is advanced relative to the mold clamping housing 3, and the advancement of the piston rod 15 causes A mold clamping force signal that is continuously smaller than the rated mold clamping force signal obtained from the mold clamping force signal generator 21 from the time when the limit switch 19a is activated is input to the control panel and compared with a preset mold clamping force signal. When both signals match, the low pressure oil is cut off and at the same time the rotation of the tie nut 17 is stopped to set the mold clamping force.
厚い金型7′,8′から薄い金型7,8に交換す
る場合は、厚い金型7′,8′を除去後予めタイバ
ナツト17を回転させてトグル装置を固定盤1側
へ移動させ、固定盤1と可動盤2の間隔が薄い金
型7,8の厚さよりも小さくしてから薄い金型
7,8を取付け、この後、上述と同様の方法で型
締力を設定することができる。 When replacing the thick molds 7', 8' with thin molds 7, 8, after removing the thick molds 7', 8', rotate the tie nut 17 in advance to move the toggle device to the fixed platen 1 side. After making the distance between the fixed platen 1 and the movable platen 2 smaller than the thickness of the thin molds 7 and 8, attach the thin molds 7 and 8, and then set the mold clamping force in the same manner as described above. can.
以上で本発明方法による型締力の自動設定を完
了するが、設定後に型締シリンダ4のピストンヘ
ツド側シリンダ室に高圧油を供給すれば、設定型
締力を発生することができる。 This completes the automatic setting of the mold clamping force according to the method of the present invention, and if high pressure oil is supplied to the cylinder chamber on the piston head side of the mold clamping cylinder 4 after the setting, the set mold clamping force can be generated.
なお、本発明方法におけるタイバナツト17を
回転させる機構は従来技術によつて構成でき、例
えば第4図示の如き構成とする。このタイバナツ
ト17の回転駆動機構は、油圧モータ、電動機等
の駆動源24により歯車25,26を介してウオ
ーム軸27を回転させ、ウオーム軸27のウオー
ム27aとタイバナツト17の外周に形成したウ
オームホイール17aの噛み合いによりタイバナ
ツト17を回転させるものである。また型締力信
号を制御盤に入力し、この入力信号と制御盤に予
め設定した型締力信号が一致したときに型締シリ
ンダ4の低圧油を切換弁操作により遮断したり、
タイバナツト17の回転を停止させたりする信号
を出力する制御盤の構成も従来技術によつて達成
でき、本発明方法はこれらを使用する方法である
が、その構成を要旨とするものではないので、そ
の説明を省略した。 The mechanism for rotating the tie nut 17 in the method of the present invention can be constructed using conventional techniques, for example, as shown in FIG. The rotational drive mechanism of the tie nut 17 rotates a worm shaft 27 via gears 25 and 26 by a drive source 24 such as a hydraulic motor or an electric motor, and a worm wheel 17a formed on the outer periphery of the worm shaft 27 and the tie nut 17 rotates the worm shaft 27 through gears 25 and 26. The tie nut 17 is rotated by the engagement of the two. In addition, a mold clamping force signal is input to the control panel, and when this input signal and a mold clamping force signal preset in the control panel match, the low pressure oil in the mold clamping cylinder 4 is cut off by operating a switching valve.
The configuration of a control panel that outputs a signal to stop the rotation of the tie nut 17 can also be achieved using conventional techniques, and although the method of the present invention uses these, the configuration is not the gist of the invention. The explanation was omitted.
上述の説明より明らかなように本発明方法によ
れば、金型を交換した場合の従来の自動型締力
設定方法のように、零点位置を得るまでに何回も
トグル装置の前進・後退と型開閉動作を繰返す必
要がないので、自動設定時間を短縮でき、ひいて
は金型交換時間を短縮できて生産性の向上を図る
ことができる効果がある。何回も型開閉動作を
繰返す必要がなく、金型を閉じたままで型締力設
定を行うので、油圧作動中子を有する金型の場合
でも中子を所定のタイミングで作動させる必要が
なくなり、型締力の自動設定を開始するまでに中
子の油圧配管や電気配線等を済ませておく必要が
なく、前記配管、配線等は型締力設定後でよいと
いう利点がある。特に本発明方法によれば、型締
力設定を連続的に行うことができる特長がある。 As is clear from the above explanation, according to the method of the present invention, unlike the conventional automatic mold clamping force setting method when the mold is replaced, the toggle device has to be moved forward and backward many times until the zero point position is obtained. Since there is no need to repeat the mold opening/closing operation, the automatic setting time can be shortened, which in turn can shorten the mold exchange time, leading to an effect of improving productivity. There is no need to repeatedly open and close the mold, and the mold clamping force is set while the mold is closed, so even if the mold has a hydraulically operated core, there is no need to operate the core at a predetermined timing. There is an advantage that it is not necessary to complete the hydraulic piping, electrical wiring, etc. of the core before starting the automatic setting of the mold clamping force, and the piping, wiring, etc. can be done after the mold clamping force is set. In particular, the method of the present invention has the advantage that the mold clamping force can be set continuously.
第1図は従来方法の一例を適用したトグル式型
締装置における薄い金型の零点位置調整時の説明
図、第2図は本発明方法の一実施例を適用したト
グル式型締装置における厚い金型の取付状態を示
す説明図、第3図は同じく厚い金型の零点位置調
整時の説明図、第4図は本発明におけるタイバナ
ツトの回転駆動機構の説明図である。
1……固定盤、2……可動盤、3……型締ハウ
ジング、4……型締シリンダ、6……タイバ、6
a……ネジ部、7,8……薄い金型、7′,8′…
…厚い金型、9……長リンク、10……クロスリ
ンク、11……短リンク、14……クロスヘツ
ド、15……ピストンロツド、16……ピスト
ン、17……タイバナツト、17a……ウオーム
ホイール、18……ブラケツト、20……ストラ
イカ、21……型締力信号発生装置、24……駆
動源、25,26……歯車、27……ウオーム
軸、27a……ウオーム。
Fig. 1 is an explanatory diagram of the zero point position adjustment of a thin mold in a toggle type mold clamping device to which an example of the conventional method is applied, and Fig. 2 is an explanatory diagram of the zero point position adjustment of a thin mold in a toggle type mold clamping device to which an example of the method of the present invention is applied. FIG. 3 is an explanatory diagram showing the mounting state of the mold, FIG. 3 is an explanatory diagram when adjusting the zero point position of a similarly thick mold, and FIG. 4 is an explanatory diagram of the rotational drive mechanism of the tie nut in the present invention. 1... Fixed plate, 2... Movable plate, 3... Mold clamping housing, 4... Mold clamping cylinder, 6... Tie bar, 6
a...Threaded part, 7, 8...Thin mold, 7', 8'...
... Thick mold, 9 ... Long link, 10 ... Cross link, 11 ... Short link, 14 ... Cross head, 15 ... Piston rod, 16 ... Piston, 17 ... Tie bolt, 17a ... Worm wheel, 18 ... Bracket, 20 ... Striker, 21 ... Mold clamping force signal generator, 24 ... Drive source, 25, 26 ... Gear, 27 ... Worm shaft, 27a ... Worm.
Claims (1)
する方法において、型締シリンダのピストンロツ
ドの前進により作動せしめられる、定格型締力を
得るための手段を設けておくと共にタイバナツト
にタイバナツトの回転数に対応した型締力信号を
出力する型締力信号発生装置を連結しておき、交
換した金型の取付け後に、型締シリンダのピスト
ンヘツド側シリンダ室に低圧油を供給して金型を
離脱しないような状態にしたまま、タイバナツト
をトグル装置全体を後退させる方向に回転させる
ことによりトグルを徐々に伸ばすと共に、型締シ
リンダのピストンロツドを型締ハウジングに対し
て相対的に前進させ、このピストンロツドの前進
により前記手段を作動させた時点から前記型締力
信号発生装置より得られる定格型締力信号より連
続的に小さくなる型締力信号と、予め設定した型
締力信号を比較し、両信号が一致した時点で低圧
油を遮断すると同時にタイバナツトの回転を停止
させることにより型締力を設定することを特徴と
するトグル式射出成形機の自動型締力設定方法。1. In the method of automatically setting the mold clamping force when the mold is replaced, a means for obtaining the rated mold clamping force, which is activated by the advancement of the piston rod of the mold clamping cylinder, is provided, and a means for obtaining the rated mold clamping force is provided, and the A mold clamping force signal generator that outputs a mold clamping force signal corresponding to the rotation speed is connected, and after installing the replaced mold, low pressure oil is supplied to the cylinder chamber on the piston head side of the mold clamping cylinder to stop the mold. The toggle is gradually extended by rotating the tie bolt in the direction of retracting the entire toggle device while keeping it in a state where it does not come off, and the piston rod of the mold clamping cylinder is advanced relative to the mold clamping housing. Comparing a preset mold clamping force signal with a mold clamping force signal that is continuously smaller than the rated mold clamping force signal obtained from the mold clamping force signal generator from the time when the means is activated by the advancement of the piston rod, An automatic mold clamping force setting method for a toggle type injection molding machine, characterized in that the mold clamping force is set by cutting off low pressure oil and simultaneously stopping the rotation of a tie nut when both signals match.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3555981A JPS57148634A (en) | 1981-03-11 | 1981-03-11 | Automatic mold tightening force set-up for toggle type injection molding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3555981A JPS57148634A (en) | 1981-03-11 | 1981-03-11 | Automatic mold tightening force set-up for toggle type injection molding machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57148634A JPS57148634A (en) | 1982-09-14 |
JPS6135923B2 true JPS6135923B2 (en) | 1986-08-15 |
Family
ID=12445085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3555981A Granted JPS57148634A (en) | 1981-03-11 | 1981-03-11 | Automatic mold tightening force set-up for toggle type injection molding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57148634A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62154043U (en) * | 1986-03-24 | 1987-09-30 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59146825A (en) * | 1983-02-12 | 1984-08-22 | Japan Steel Works Ltd:The | Apparatus for thermally compensating clamp force of toggle type injection molder |
JPS60151015A (en) * | 1984-01-20 | 1985-08-08 | Japan Steel Works Ltd:The | Injection compression molding machine |
JP4477546B2 (en) * | 2005-06-02 | 2010-06-09 | 住友重機械工業株式会社 | Molding condition setting method |
-
1981
- 1981-03-11 JP JP3555981A patent/JPS57148634A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62154043U (en) * | 1986-03-24 | 1987-09-30 |
Also Published As
Publication number | Publication date |
---|---|
JPS57148634A (en) | 1982-09-14 |
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