JPH05177643A - Clamping device of molding machine - Google Patents
Clamping device of molding machineInfo
- Publication number
- JPH05177643A JPH05177643A JP35768291A JP35768291A JPH05177643A JP H05177643 A JPH05177643 A JP H05177643A JP 35768291 A JP35768291 A JP 35768291A JP 35768291 A JP35768291 A JP 35768291A JP H05177643 A JPH05177643 A JP H05177643A
- Authority
- JP
- Japan
- Prior art keywords
- oil chamber
- mold clamping
- tie bar
- movable plate
- 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
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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
-
- 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
- B29C45/1748—Retractable tie-rods
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
- B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
- B29C45/6714—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould
- B29C45/6728—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould the separate element consisting of coupling rods
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は射出成形機、ダイキャ
ストマシン、プレス成形などの成形機に用いられる型締
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold clamping device used in a molding machine such as an injection molding machine, a die cast machine, a press molding machine.
【０００２】[0002]
【従来の技術】特開昭６３−３１７２４３号公報により
固定金型を保持する固定盤と、可動金型を保持する可動
盤と、可動盤を固定盤に対し進退移動する開閉シリンダ
と、可動盤が固定盤に接近して型閉じ後に、可動盤側の
タイバーと型締ピストンとを結合して型締を行う型締シ
リンダを備えた大型成形機用の型締装置が公知となって
いる。2. Description of the Related Art According to Japanese Patent Laid-Open No. 63-317243, a fixed plate for holding a fixed mold, a movable plate for holding a movable mold, an open / close cylinder for moving the movable plate forward and backward with respect to the fixed plate, and a movable plate. There is known a mold clamping device for a large-sized molding machine including a mold clamping cylinder that performs mold clamping by coupling a tie bar on the movable platen side and a mold clamping piston after closing the mold by approaching a fixed plate.
【０００３】[0003]
【発明が解決しようとする課題】このような型締装置で
は、大きな型締力を出力するために、大径の型締シリン
ダが用いられ、従来の直圧式の型締装置ほどではないに
しろ作動には大容量の作動油を必要とする。In such a mold clamping device, in order to output a large mold clamping force, a large diameter mold clamping cylinder is used, which is not as great as the conventional direct pressure type mold clamping device. It requires a large amount of hydraulic oil to operate.
【０００４】また型締シリンダに対する作動油の給排
を、これまでのように一方の油室に作動油を供給しなが
ら他方の油室の作動油を油圧回路に排出するとのごと
く、型締ピストン両側の油室毎に制御していると、速や
かな特性昇圧が得られず、これを得るためには大吐出量
のポンプと瞬間的に大容量の作動油の通過が可能な大径
の油圧配管及び大定格のバルブが必要となる。Further, as for supplying and discharging the hydraulic oil to and from the mold clamping cylinder, the hydraulic oil in the other oil chamber is discharged to the hydraulic circuit while the hydraulic oil is supplied to one oil chamber as in the conventional case. If the oil chambers on both sides are controlled, rapid characteristic pressure boosting cannot be obtained.To obtain this, a large discharge pump and a large hydraulic pressure that can instantaneously pass a large amount of hydraulic oil Piping and highly rated valves are required.
【０００５】ところで大吐出量のポンプ等は本質的に応
答性が鈍く、これを補うために複数台の小容量のポンプ
を並列作動させることも考えられるが、このようなこと
はシステムの複雑化と大型化を招き、装置コストを上昇
させる原因となるので好ましいものではない。By the way, a large discharge pump or the like has essentially low responsiveness, and it may be possible to operate a plurality of small-capacity pumps in parallel in order to compensate for this, but this makes the system complicated. This leads to an increase in size and causes an increase in apparatus cost, which is not preferable.
【０００６】そこで先に型締シリンダの前部油室と後部
油室とを差動回路で連通する発明（特願平２−２００５
９３号参照）をなしたが、この発明では固定盤側に型締
シリンダとタイバーの結合装置とを設けている関係上、
構成が以外に複雑で組立てに手数を要するものであっ
た。Therefore, the invention in which the front oil chamber and the rear oil chamber of the mold clamping cylinder are first connected by a differential circuit (Japanese Patent Application No. 2005-2005).
No. 93) has been made, but in the present invention, since the mold clamping cylinder and the tie bar coupling device are provided on the fixed platen side,
The structure was complicated and the assembly was troublesome.
【０００７】この発明は上記従来の技術的課題を解決す
るために考えられたものであって、その目的は、小定格
の油圧システムを採用しながら速やかな特性昇圧が得ら
れ、また構成も簡素化されて組立ても容易な新たな成形
機の型締装置を提供することにある。The present invention has been conceived in order to solve the above-mentioned conventional technical problems, and an object thereof is to obtain a quick characteristic boosting while adopting a hydraulic system of a small rating and to have a simple structure. An object of the present invention is to provide a new mold clamping device for a molding machine that is easy to assemble and assemble.
【０００８】上記目的によるこの発明の特徴は、ベ―ス
上に佇設した固定盤に対し可動盤を開閉シリンダにより
移動自在に配設し、その固定盤の所要箇所に型締シリン
ダを設け、先端部周囲にねじまたは溝条等を形成したタ
イバーを型締ピストンに連結して可動盤側に突設し、そ
のタイバーの挿通孔を上記可動盤に貫設する一方、挿通
孔部分の可動盤外側にチャック部材によるタイバー結合
装置を一体に取付け、上記型締シリンダに前部油室と後
部油室とを連通する差動回路を設けてなることにある。The feature of the present invention according to the above object is that a movable platen is movably arranged by an opening / closing cylinder with respect to a fixed platen standing on a base, and a mold clamping cylinder is provided at a required position of the fixed platen. A tie bar with a screw or groove formed around the tip is connected to the mold clamping piston to project on the movable plate side, and the insertion hole of the tie bar is formed through the movable plate, while the movable plate of the insertion hole portion is provided. A tie bar coupling device using a chuck member is integrally attached to the outside, and a differential circuit that connects the front oil chamber and the rear oil chamber is provided in the mold clamping cylinder.
【０００９】[0009]
【作 用】上記構成では、開閉シリンダにより可動盤を
固定盤に対して前進移動すると、金型が型閉する前にタ
イバーの先端部が挿通孔より結合装置内に突出する。そ
こでハーフナットによりタイバーを可動盤に連結する
と、型締ピストンがタイバーを介して可動盤により加圧
され、型締シリンダの後部油室の作動油が差動回路によ
り前部油室に移動するようになる。[Operation] In the above structure, when the movable platen is moved forward with respect to the fixed platen by the opening / closing cylinder, the tip of the tie bar projects into the coupling device from the insertion hole before the mold is closed. Therefore, if the tie bar is connected to the movable platen with a half nut, the mold clamping piston is pressurized by the movable platen via the tie bar, and the hydraulic oil in the rear oil chamber of the mold clamping cylinder moves to the front oil chamber by the differential circuit. become.
【００１０】また後部油室の余剰の作動油は、ドレーン
として排出され、開閉シリンダによる型閉じ速度がスロ
ーダウンする。Excess hydraulic oil in the rear oil chamber is discharged as a drain, and the mold closing speed of the open / close cylinder slows down.
【００１１】反対に前部油室が供給された作動油により
加圧されたときには、後部油室の作動油は差動回路の閉
鎖によりドレーンとして排出され、そこに高圧型締力が
生ずる。さらにまた前後部の両油室に作動油を供給する
と、型締ピストン前後の受圧面積の差から型締ピストン
が後部油室の作動油によって加圧され、そこに型開力が
発生する。On the contrary, when the front oil chamber is pressurized by the supplied hydraulic oil, the hydraulic oil in the rear oil chamber is discharged as a drain by closing the differential circuit, and a high-pressure mold clamping force is generated there. Further, when hydraulic oil is supplied to both the front and rear oil chambers, the mold clamping piston is pressurized by the hydraulic oil in the rear oil chamber due to the difference in pressure receiving area before and after the mold clamping piston, and a mold opening force is generated there.
【００１２】[0012]
【実施例】図中１はベ―ス２に佇設した固定盤、３は固
定盤１に対し移動自在にベ―ス２上に設けた可動盤であ
る。４は可動盤３の移動手段を兼ねる開閉シリンダで、
固定盤側にシリンダ４ａが、また可動盤側にロッド４ｂ
が固定してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawing, 1 is a fixed platen which is installed on a base 2, and 3 is a movable plate which is movably provided on the base 2 with respect to the fixed plate 1. Reference numeral 4 denotes an opening / closing cylinder which also serves as a moving means of the movable platen 3,
Cylinder 4a is on the fixed board side, and rod 4b is on the movable board side.
Is fixed.
【００１３】上記固定盤１の四隅部には型締シリンダ５
が一体に設けてある。この型締シリンダ５が備える型締
ピストン６には、先端部周囲にねじ７を形成した所要長
さのタイバー８が連結してあり、これにより各タイバー
８は可動盤側に並行に突設された状態にある。なお、ね
じ７は多数の溝条であってもよい。Mold clamping cylinders 5 are provided at the four corners of the fixed platen 1.
Are provided integrally. The mold clamping piston 6 of the mold clamping cylinder 5 is connected to a tie bar 8 having a required length with a screw 7 formed around the tip of the mold clamping cylinder 5, so that each tie bar 8 is projected in parallel on the movable plate side. It is in a state of The screw 7 may be a large number of grooves.
【００１４】上記可動盤３の四隅部には、タイバー８の
挿通孔９が穿設してあり、それら挿通孔９が位置する可
動盤３の外側にはタイバー結合装置１０が一体に取付け
てある。Insertion holes 9 for the tie bars 8 are formed in the four corners of the movable plate 3, and tie bar coupling devices 10 are integrally attached to the outside of the movable plate 3 where the insertion holes 9 are located. ..
【００１５】このタイバー結合装置１０は、一対のハー
フナットによるチャック部材１１と、そのチャック部材
１１を収容した端部開口の固定ケース１２と、チャック
部材１１の作動シリンダ１３及びピストン１４とからな
る。The tie bar coupling device 10 comprises a pair of half nut chuck members 11, a fixed case 12 having an end opening for accommodating the chuck members 11, an operating cylinder 13 and a piston 14 of the chuck member 11.
【００１６】上記固定ケース１２は、可動盤３の外側面
に取付けてあり、その内部に一対のチャック部材１１が
上記ピストン１４に連結して、開閉自在に対設してあ
る。The fixed case 12 is attached to the outer side surface of the movable platen 3, and a pair of chuck members 11 are connected to the piston 14 inside the fixed case 12 so as to be openable and closable.
【００１７】また固定ケース１２の外端面には、型厚調
整装置１５が連設してある。この型厚調整装置１５は、
外端を閉鎖して固定ケース１２に取付けたねじ筒１６
と、そのねじ筒１６の内側に施したねじと螺合するとと
もに、ねじ筒外端からのスプライン軸１７と嵌合したス
トッパー１８と、そのスプライン軸１８を回転するサー
ボモータ１９とから構成されている。A mold thickness adjusting device 15 is connected to the outer end surface of the fixed case 12. This mold thickness adjusting device 15 is
Screw cylinder 16 with the outer end closed and attached to the fixed case 12
And a stopper 18 that engages with a screw applied to the inside of the screw cylinder 16 and is fitted to the spline shaft 17 from the outer end of the screw cylinder, and a servo motor 19 that rotates the spline shaft 18. There is.
【００１８】２０は上記型締シリンダ５の差動回路で、
前部油室２１と後部油室２２との油圧路２３，２４を、
ロジック弁２５を介してポンプ回路２６に接続するとと
もに、後部油室側の油圧路２４とドレーン回路２７との
間にロジック弁２８を設けてなる。Reference numeral 20 is a differential circuit of the mold clamping cylinder 5,
The hydraulic passages 23 and 24 between the front oil chamber 21 and the rear oil chamber 22 are
A logic valve 28 is provided between the hydraulic circuit 24 on the rear oil chamber side and the drain circuit 27 while being connected to the pump circuit 26 via the logic valve 25.
【００１９】上記ロジック弁２５は前部油室側の回路圧
により開閉作動するように、切換弁２９を設けてパイロ
ット回路３０に接続され、またロジック弁２８はポンプ
側の回路圧とドレーン側の回路圧により開閉作動するよ
うに、切換弁３１を設けてパイロット回路３２，３３に
接続してある。The logic valve 25 is connected to the pilot circuit 30 by providing a switching valve 29 so as to be opened and closed by the circuit pressure on the front oil chamber side, and the logic valve 28 is connected on the pump side circuit pressure and the drain side. A switching valve 31 is provided and connected to pilot circuits 32 and 33 so as to open and close by circuit pressure.
【００２０】なお、４０，４１は金型、４２は可動盤３
のガイドである。Numerals 40 and 41 are molds, and numeral 42 is the movable platen 3.
Is a guide.
【００２１】次に型締動作について説明する。図１に示
す型開状態から、開閉シリンダ４の作動により、可動盤
３を固定盤１に対し前進移動して高速型閉を行なう。Next, the mold clamping operation will be described. From the mold open state shown in FIG. 1, the movable platen 3 is moved forward with respect to the fixed platen 1 by the operation of the opening / closing cylinder 4 to perform high-speed mold closing.
【００２２】図２に示すように、可動盤３の前進により
タイバ―８の先端部のねじ軸７は、挿通孔９から可動盤
３を貫通して、金型４０，４１が完全に閉じる前に、予
め金型の厚さから位置決めされたストッパー１８と接す
る。As shown in FIG. 2, as the movable platen 3 advances, the screw shaft 7 at the tip of the tie bar 8 penetrates the movable platen 3 from the insertion hole 9 before the molds 40 and 41 are completely closed. First, it contacts the stopper 18 which is positioned in advance from the thickness of the mold.
【００２３】この型閉じに際して、差動回路２０の各切
換弁２９，３１を各ロジック弁２５，２８が油圧路２４
側の油圧により開弁するように切換えておくと、後部油
室２２の作動油は型締ピストン６の移動に伴い前部油室
２１に移動し、余剰の作動油はドレーンとしてタンクに
排出される。At the time of closing the mold, the switching valves 29 and 31 of the differential circuit 20 are connected to the logic valves 25 and 28 of the hydraulic circuit 24.
When the valve is switched to be opened by the hydraulic pressure on the side, the hydraulic oil in the rear oil chamber 22 moves to the front oil chamber 21 as the mold clamping piston 6 moves, and the excess hydraulic oil is discharged to the tank as a drain. It
【００２４】したがって、型締ピストン６は後部油室側
の作動油を排出しつつタイバー８とともに、型閉じ完了
位置まで移動するため、型閉速度は高速から低速に変わ
る。またストッパー１８との当接により、タイバー８の
ねじ軸７の側部が、上記結合装置１０の一対のチャック
部材１１に対し、静止の状態で臨むことになるので、そ
の移動中に作動シリンダ１３を油圧作動して、チャック
部材１１によるタイバー先端部のチャッキングを行う。Therefore, the mold clamping piston 6 moves to the mold closing completed position together with the tie bar 8 while discharging the hydraulic oil on the rear oil chamber side, so that the mold closing speed changes from high speed to low speed. Further, due to the contact with the stopper 18, the side portion of the screw shaft 7 of the tie bar 8 faces the pair of chuck members 11 of the coupling device 10 in a stationary state, so that the working cylinder 13 is moved during the movement thereof. Is hydraulically operated to chuck the tip portion of the tie bar by the chuck member 11.
【００２５】このチャッキングがリミットスイッチなど
により感知され、また型閉じ完了が確認されると、上記
差動回路２０の切換弁２９が前部油室側の回路圧により
ロジック弁２５が閉鎖するように切換えられる。When this chucking is sensed by a limit switch or the like and the completion of mold closing is confirmed, the switching valve 29 of the differential circuit 20 causes the logic valve 25 to close due to the circuit pressure on the front oil chamber side. Is switched to.
【００２６】これにより２つの油室は遮断された状態と
なるが、後部油室側はタンクと流通した状態にあるの
で、ポンプ側回路２６からの作動油は前部油室２１にの
み供給されることになり、そこに高圧型締が行われる。As a result, the two oil chambers are shut off, but the rear oil chamber side is in communication with the tank, so that the hydraulic oil from the pump side circuit 26 is supplied only to the front oil chamber 21. The high-pressure mold clamping is performed there.
【００２７】次に前部油室２１の圧抜きを行うとともに
チャッキングの解除を行い、ロジック弁２５を開放、ロ
ジック弁２８を閉鎖する方向に各切換弁２９，３１の切
換作動が行われると、両室は再び連通し、ポンプ側回路
２６から両油室に作動油が供給されるようになるが、後
部油室側のピストン受圧面積が前部油室側よりも大きい
ことから、そこに生ずる差圧により、作動油は後部油室
側に供給されるとともに、前部油室側の作動油は型締ピ
ストン６により後部油室側に押し出される。Next, when the pressure in the front oil chamber 21 is released and the chucking is released, the switching valves 29 and 31 are switched in the directions of opening the logic valve 25 and closing the logic valve 28. , The two chambers are communicated again, and the hydraulic oil is supplied from the pump side circuit 26 to both the oil chambers, but since the piston pressure receiving area on the rear oil chamber side is larger than that on the front oil chamber side, Due to the generated differential pressure, the hydraulic oil is supplied to the rear oil chamber side, and the hydraulic oil on the front oil chamber side is pushed out to the rear oil chamber side by the mold clamping piston 6.
【００２８】この結果、前部油室側の油圧抵抗が速やか
に除かれると同時に、後部油室２２への作動油の供給も
円滑に行われて、そこに強力型開が行われる。その際、
可動盤３にはストッパー１８を介して強力型開力が伝達
される。As a result, the hydraulic resistance on the front oil chamber side is promptly removed, and at the same time, the hydraulic oil is smoothly supplied to the rear oil chamber 22 and the strong mold opening is performed there. that time,
The strong mold opening force is transmitted to the movable plate 3 via the stopper 18.
【００２９】そして強力型開工程が終了した後、前部油
室２１及び後部油室２２への圧油の供給を止め、開閉シ
リンダ４へ圧油を供給することにより、開閉シリンダ４
による型開となる。また差動回路２０では後部油室側の
切換弁３１が切換わってロジック弁２８を開弁状態とな
す。After the strong mold opening process is completed, the supply of pressure oil to the front oil chamber 21 and the rear oil chamber 22 is stopped, and the pressure oil is supplied to the opening / closing cylinder 4, whereby the opening / closing cylinder 4
The mold is opened by. In the differential circuit 20, the switching valve 31 on the rear oil chamber side is switched to open the logic valve 28.
【００３０】なお、上記開閉シリンダ４の型開回路を、
上記差動回路と同様に構成することもでき、その時には
全体の効率が一段と向上し、サイクル時間も更に一層短
縮される。The mold opening circuit of the opening / closing cylinder 4 is
The differential circuit can be configured in the same manner, and at that time, the overall efficiency is further improved and the cycle time is further shortened.
【００３１】[0031]
【発明の効果】この発明は上述のように、タイバーと連
結した型締ピストンを備えた型締シリンダを固定盤側に
設け、その型締シリンダの前部油室と後部油室とを差動
回路により連通してなることから、強力型締時を除く型
締ピストンの移動時には、被加圧側の油室から排出され
た作動油が、差動回路を経て加圧側の油室に供給される
ことになるので、強力型開時の加圧側油室への作動油の
供給は、両油室間の容積差分の少容量で済み、作動油の
給排も速やかに生ずるので、油室毎の給排を行う場合に
比べて特性昇圧が向上する。As described above, according to the present invention, the mold clamping cylinder having the mold clamping piston connected to the tie bar is provided on the fixed platen side, and the front oil chamber and the rear oil chamber of the mold clamping cylinder are differentially operated. Since they are connected by a circuit, the hydraulic oil discharged from the oil chamber on the pressurized side is supplied to the oil chamber on the pressurized side through the differential circuit when the mold clamping piston moves except during strong mold clamping. Therefore, the hydraulic oil can be supplied to the pressurizing side oil chamber when the strong mold is opened with a small volume difference between the two oil chambers, and the hydraulic oil can be quickly supplied and discharged. The characteristic boosting is improved as compared with the case of supplying and discharging.
【００３２】また型締シリンダとチャック部材によるタ
イバー結合装置を、固定盤側と可動盤側とに分けて設け
たので、その両方を固定盤側または可動盤側に設けた場
合に比べて型締ピストンの構造が簡素化され、型締ピス
トンにタイバーの挿通孔を穿設する必要もないので、通
常構造の型締ピストンを用いることができるなど、コス
トの低減が図られ、さらには油圧システムも小定格のも
ので足りるので、特性昇圧が向上した型締装置をコンパ
クトにそして廉価に製造することができるなどの特長を
有する。Further, since the tie bar connecting device using the mold clamping cylinder and the chuck member is provided separately on the fixed platen side and the movable platen side, compared to the case where both are provided on the fixed platen side or the movable platen side, the mold clamping is performed. Since the structure of the piston is simplified and it is not necessary to form a tie bar insertion hole in the mold clamping piston, it is possible to use a mold clamping piston with a normal structure, which reduces costs, and also a hydraulic system. Since a small rating is sufficient, it has the features of being able to manufacture a mold clamping device with improved characteristic boosting in a compact and inexpensive manner.
【図１】この発明に係わる成形機の型締装置の１実施例
であって、型開状態における半部平断面図である。FIG. 1 is a half sectional plan view of a mold clamping device of a molding machine according to an embodiment of the present invention in a mold open state.
【図２】同じく型閉状態における半部平断面図である。FIG. 2 is a plan view of a half part in the same mold closed state.
１ 固定盤 ２ ベ―ス ３ 可動盤 ４ 開閉シリンダ ５ 型締シリンダ ６ 型締ピストン ７ ねじ ８ タイバー ９ タイバー挿通孔 １０ タイバー結合装置 １１ チャック部材 １２ 固定ケース １３ 作動シリンダ １４ ピストン １５ 型厚調整装置 １６ ねじ筒 ２０ 差動回路 ２１ 前部油室 ２２ 後部油室 ２３ 前部油室側の油圧路 ２４ 後部油室側の油圧路 ２５，２８ ロジック弁 ２６ ポンプ側の油圧路 ２７ ドレーン側油圧路 ２９．３１ 切換弁 ３０，３１ パイロット油圧路 ３２，３３ パイロット油圧路 Ｐ 油圧ポンプ 1 Fixed Plate 2 Base 3 Movable Plate 4 Open / Close Cylinder 5 Mold Clamping Cylinder 6 Mold Clamping Cylinder 6 Mold Clamping Piston 7 Screw 8 Tie Bar 9 Tie Bar Insertion Hole 10 Tie Bar Coupling Device 11 Chuck Member 12 Fixed Case 13 Working Cylinder 14 Piston 15 Mold Thickness Adjuster 16 Screw cylinder 20 Differential circuit 21 Front oil chamber 22 Rear oil chamber 23 Front oil chamber side hydraulic path 24 Rear oil chamber side hydraulic path 25, 28 Logic valve 26 Pump side hydraulic path 27 Drain side hydraulic path 29. 31 Switching valve 30, 31 Pilot hydraulic path 32, 33 Pilot hydraulic path P Hydraulic pump
Claims (1)
を開閉シリンダにより移動自在に配設し、その固定盤の
所要箇所に型締シリンダを設け、先端部周囲にねじまた
は溝条等を形成したタイバーを型締ピストンに連結して
可動盤側に突設し、そのタイバーの挿通孔を上記可動盤
に貫設する一方、挿通孔部分の可動盤外側にチャック部
材によるタイバー結合装置を一体に取付け、上記型締シ
リンダに前部油室と後部油室とを連通する差動回路を設
けてなることを特徴とする成形機の型締装置。1. A movable plate is movably arranged by an opening / closing cylinder with respect to a fixed plate installed on a base, a mold clamping cylinder is provided at a required position of the fixed plate, and a screw or groove is provided around a tip portion. A tie bar with a line formed on it is connected to a mold clamping piston to project on the movable plate side, and the insertion hole of the tie bar is penetrated through the movable plate, while the tie bar is connected to the outside of the movable plate in the insertion hole by a chuck member. A mold clamping device for a molding machine, wherein the device is integrally mounted, and the mold clamping cylinder is provided with a differential circuit that communicates a front oil chamber and a rear oil chamber.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3357682A JP2704572B2 (en) | 1991-12-26 | 1991-12-26 | Mold clamping device of molding machine |
| DE19924243735 DE4243735C2 (en) | 1991-12-26 | 1992-12-23 | Device for closing and locking the mold of a molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3357682A JP2704572B2 (en) | 1991-12-26 | 1991-12-26 | Mold clamping device of molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05177643A true JPH05177643A (en) | 1993-07-20 |
| JP2704572B2 JP2704572B2 (en) | 1998-01-26 |
Family
ID=18455371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3357682A Expired - Fee Related JP2704572B2 (en) | 1991-12-26 | 1991-12-26 | Mold clamping device of molding machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2704572B2 (en) |
| DE (1) | DE4243735C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004330552A (en) * | 2003-05-06 | 2004-11-25 | Toshiba Mach Co Ltd | Mold clamping device |
| KR102379391B1 (en) * | 2021-06-14 | 2022-03-28 | 원일유압 주식회사 | Low profile vertical type injection molding machine |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19516125C1 (en) * | 1995-05-03 | 1996-06-05 | Battenfeld Fischer Blasform | Tool closure on plastics processing machine process equipment |
| US5776516A (en) * | 1996-08-12 | 1998-07-07 | Mannesmann Aktiengesellschaft | Two-platen injection molding machine |
| DE19639053A1 (en) | 1996-09-24 | 1998-03-26 | Daimler Benz Ag | Die casting machine |
| JP3096895B2 (en) * | 1996-10-09 | 2000-10-10 | 日精樹脂工業株式会社 | Control method of injection molding machine |
| SE510134C2 (en) * | 1998-02-27 | 1999-04-19 | Hans Mueller | Device for two-stage extruders for injection molding tools |
| US6719553B1 (en) | 1998-03-24 | 2004-04-13 | Karl Hehl | Mold-closing unit for an injection molding machine |
| DE19812741B4 (en) * | 1998-03-24 | 2005-04-28 | Karl Hehl | Mold-closing unit for an injection molding machine |
| IT1311228B1 (en) * | 1999-06-04 | 2002-03-04 | Sipa Spa | HYDRAULIC PRESS WITH PERFECTED CONTROL OF THE DYNAMIC CIRCUIT |
| DE10040819B4 (en) | 2000-08-21 | 2012-08-09 | Kraussmaffei Technologies Gmbh | Plate closing unit for an injection molding machine |
| JP4055841B2 (en) * | 2000-10-23 | 2008-03-05 | 三菱重工プラスチックテクノロジー株式会社 | Mold clamping apparatus, mold clamping method, and mold thickness adjusting method using the same |
| US20040247740A1 (en) * | 2003-05-01 | 2004-12-09 | Toshiba Kikai Kabushiki Kaisha | Mold clamping apparatus |
| DE102010046227B4 (en) | 2010-05-25 | 2021-08-05 | Kraussmaffei Technologies Gmbh | Method for operating a clamping unit for an injection molding machine |
| CN102873814B (en) * | 2012-10-23 | 2014-06-18 | 北京化工大学 | Ultrahigh-pressure water circulation quick pressurizing two-plate type injection molding machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6082309A (en) * | 1983-10-12 | 1985-05-10 | Toshiba Mach Co Ltd | Die clamping apparatus |
| JPS63126658A (en) * | 1986-11-18 | 1988-05-30 | Toyo Mach & Metal Co Ltd | Direct press type mold clamping device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1997012U (en) * | 1968-08-14 | 1968-11-21 | Danly Machine Corp | VERTICAL INJECTION MOLDING MACHINE. |
| US5192557A (en) * | 1990-07-27 | 1993-03-09 | Nissei Jushi Kogyo K.K. | Clamping apparatus for molding machine |
| US5066217A (en) * | 1990-08-08 | 1991-11-19 | Ube Industries, Ltd. | Clamping apparatus for an injection molding machine |
-
1991
- 1991-12-26 JP JP3357682A patent/JP2704572B2/en not_active Expired - Fee Related
-
1992
- 1992-12-23 DE DE19924243735 patent/DE4243735C2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6082309A (en) * | 1983-10-12 | 1985-05-10 | Toshiba Mach Co Ltd | Die clamping apparatus |
| JPS63126658A (en) * | 1986-11-18 | 1988-05-30 | Toyo Mach & Metal Co Ltd | Direct press type mold clamping device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004330552A (en) * | 2003-05-06 | 2004-11-25 | Toshiba Mach Co Ltd | Mold clamping device |
| KR102379391B1 (en) * | 2021-06-14 | 2022-03-28 | 원일유압 주식회사 | Low profile vertical type injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4243735A1 (en) | 1993-07-01 |
| JP2704572B2 (en) | 1998-01-26 |
| DE4243735C2 (en) | 1996-06-27 |
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